Science.gov

Sample records for coal mines held

  1. Indonesian coal mining

    SciTech Connect

    2008-11-15

    The article examines the opportunities and challenges facing the Indonesian coal mining industry and how the coal producers, government and wider Indonesian society are working to overcome them. 2 figs., 1 tab.

  2. Coal mining: A petex primer

    SciTech Connect

    Not Available

    1985-01-01

    This book is an introduction to the coal industry - from planning a mine to delivering coal to a power plant. The primer covers what coal is and how it is used, modern underground and surface mining practices, coal preparation and transport, and the relation between coal and the environment.

  3. Respiratory Diseases Caused by Coal Mine Dust

    PubMed Central

    Laney, A. Scott; Weissman, David N.

    2015-01-01

    Objective To provide an update on respiratory diseases caused by coal mine dust. Methods This article presents the results of a literature review initially performed for an International Conference on Occupational and Environmental Lung Disease held in summer 2013. Results Coal mine dust causes a spectrum of lung diseases collectively termed coal mine dust lung disease (CMDLD). These include Coal Workers’ Pneumoconiosis, silicosis, mixed dust pneumoconiosis, dust-related diffuse fibrosis (which can be mistaken for idiopathic pulmonary fibrosis), and chronic obstructive pulmonary disease. CMDLD continues to be a problem in the United States, particularly in the central Appalachian region. Treatment of CMDLD is symptomatic. Those with end-stage disease are candidates for lung transplantation. Because CMDLD cannot be cured, prevention is critical. Conclusions Coal mine dust remains a relevant occupational hazard and miners remain at risk for CMDLD. PMID:25285970

  4. Land reclamation beautifies coal mines

    SciTech Connect

    Coblentz, B.

    2009-07-15

    The article explains how the Mississippi Agricultural and Forestry Experiments station, MAFES, has helped prepare land exploited by strip mining at North American Coal Corporation's Red Hills Mine. The 5,800 acre lignite mine is over 200 ft deep and uncovers six layers of coal. About 100 acres of land a year is mined and reclaimed, mostly as pine plantations. 5 photos.

  5. Automatic Coal-Mining System

    NASA Technical Reports Server (NTRS)

    Collins, E. R., Jr.

    1985-01-01

    Coal cutting and removal done with minimal hazard to people. Automatic coal mine cutting, transport and roof-support movement all done by automatic machinery. Exposure of people to hazardous conditions reduced to inspection tours, maintenance, repair, and possibly entry mining.

  6. In Brief: Coal mining regulations

    NASA Astrophysics Data System (ADS)

    Showstack, Randy

    2009-12-01

    The U.S. Department of the Interior (DOI) announced on 18 November measures to strengthen the oversight of state surface coal mining programs and to promulgate federal regulations to protect streams affected by surface coal mining operations. DOI's Office of Surface Mining Reclamation and Enforcement (OSM) is publishing an advance notice of a proposed rule about protecting streams from adverse impacts of surface coal mining operations. A rule issued by the Bush administration in December 2008 allows coal mine operators to place excess excavated materials into streams if they can show it is not reasonably possible to avoid doing so. “We are moving as quickly as possible under the law to gather public input for a new rule, based on sound science, that will govern how companies handle fill removed from mountaintop coal seams,” according to Wilma Lewis, assistant secretary for Land and Minerals Management at DOI.

  7. Coal mine methane global review

    SciTech Connect

    2008-07-01

    This is the second edition of the Coal Mine Methane Global Overview, updated in the summer of 2008. This document contains individual, comprehensive profiles that characterize the coal and coal mine methane sectors of 33 countries - 22 methane to market partners and an additional 11 coal-producing nations. The executive summary provides summary tables that include statistics on coal reserves, coal production, methane emissions, and CMM projects activity. An International Coal Mine Methane Projects Database accompanies this overview. It contains more detailed and comprehensive information on over two hundred CMM recovery and utilization projects around the world. Project information in the database is updated regularly. This document will be updated annually. Suggestions for updates and revisions can be submitted to the Administrative Support Group and will be incorporate into the document as appropriate.

  8. Automated Coal-Mining System

    NASA Technical Reports Server (NTRS)

    Gangal, M. D.; Isenberg, L.; Lewis, E. V.

    1985-01-01

    Proposed system offers safety and large return on investment. System, operating by year 2000, employs machines and processes based on proven principles. According to concept, line of parallel machines, connected in groups of four to service modules, attacks face of coal seam. High-pressure water jets and central auger on each machine break face. Jaws scoop up coal chunks, and auger grinds them and forces fragments into slurry-transport system. Slurry pumped through pipeline to point of use. Concept for highly automated coal-mining system increases productivity, makes mining safer, and protects health of mine workers.

  9. Implementation of paste backfill mining technology in Chinese coal mines.

    PubMed

    Chang, Qingliang; Chen, Jianhang; Zhou, Huaqiang; Bai, Jianbiao

    2014-01-01

    Implementation of clean mining technology at coal mines is crucial to protect the environment and maintain balance among energy resources, consumption, and ecology. After reviewing present coal clean mining technology, we introduce the technology principles and technological process of paste backfill mining in coal mines and discuss the components and features of backfill materials, the constitution of the backfill system, and the backfill process. Specific implementation of this technology and its application are analyzed for paste backfill mining in Daizhuang Coal Mine; a practical implementation shows that paste backfill mining can improve the safety and excavation rate of coal mining, which can effectively resolve surface subsidence problems caused by underground mining activities, by utilizing solid waste such as coal gangues as a resource. Therefore, paste backfill mining is an effective clean coal mining technology, which has widespread application. PMID:25258737

  10. Implementation of paste backfill mining technology in Chinese coal mines.

    PubMed

    Chang, Qingliang; Chen, Jianhang; Zhou, Huaqiang; Bai, Jianbiao

    2014-01-01

    Implementation of clean mining technology at coal mines is crucial to protect the environment and maintain balance among energy resources, consumption, and ecology. After reviewing present coal clean mining technology, we introduce the technology principles and technological process of paste backfill mining in coal mines and discuss the components and features of backfill materials, the constitution of the backfill system, and the backfill process. Specific implementation of this technology and its application are analyzed for paste backfill mining in Daizhuang Coal Mine; a practical implementation shows that paste backfill mining can improve the safety and excavation rate of coal mining, which can effectively resolve surface subsidence problems caused by underground mining activities, by utilizing solid waste such as coal gangues as a resource. Therefore, paste backfill mining is an effective clean coal mining technology, which has widespread application.

  11. Implementation of Paste Backfill Mining Technology in Chinese Coal Mines

    PubMed Central

    Chang, Qingliang; Zhou, Huaqiang; Bai, Jianbiao

    2014-01-01

    Implementation of clean mining technology at coal mines is crucial to protect the environment and maintain balance among energy resources, consumption, and ecology. After reviewing present coal clean mining technology, we introduce the technology principles and technological process of paste backfill mining in coal mines and discuss the components and features of backfill materials, the constitution of the backfill system, and the backfill process. Specific implementation of this technology and its application are analyzed for paste backfill mining in Daizhuang Coal Mine; a practical implementation shows that paste backfill mining can improve the safety and excavation rate of coal mining, which can effectively resolve surface subsidence problems caused by underground mining activities, by utilizing solid waste such as coal gangues as a resource. Therefore, paste backfill mining is an effective clean coal mining technology, which has widespread application. PMID:25258737

  12. Coal Mining, Germany

    NASA Technical Reports Server (NTRS)

    2001-01-01

    This simulated natural color ASTER image in the German state of North Rhine Westphalia covers an area of 30 by 36 km, and was acquired on August 26, 2000. On the right side of the image are 3 enormous opencast coalmines. The Hambach opencast coal mine has recently been brought to full output capacity through the addition of the No. 293 giant bucket wheel excavator. This is the largest machine in the world; it is twice as long as a soccer field and as tall as a building with 30 floors. To uncover the 2.4 billion tons of brown coal (lignite) found at Hambach, five years were required to remove a 200-m-thick layer of waste sand and to redeposit it off site. The mine currently yields 30 million tons of lignite annually, with annual capacity scheduled to increase to 40 million tons in coming years.

    The image is centered at 51 degrees north latitude, 6.4 degrees east longitude.

    Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of International Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. Dr. Anne Kahle at NASA's Jet Propulsion Laboratory, Pasadena, California, is the U.S. science team leader; Moshe Pniel of JPL is the project manager. ASTER is the only high-resolution imaging sensor on Terra. The primary goal of the ASTER mission is to obtain high-resolution image data in 14 channels over the entire land surface, as well as black and white stereo images. With revisit time of between 4 and 16 days, ASTER will provide the capability for repeat coverage of changing areas on Earth's surface.

    The broad spectral coverage and high spectral resolution of ASTER will provide scientists in numerous disciplines with critical information for surface mapping and monitoring dynamic conditions and temporal change

  13. Topographic Maps and Coal Mining.

    ERIC Educational Resources Information Center

    Raitz, Karl B.

    1984-01-01

    Geography teachers can illustrate the patterns associated with mineral fuel production, especially coal, by using United States Geological Survey topographic maps, which are illustrated by symbols that indicate mine-related features, such as shafts and tailings. Map reading exercises are presented; an interpretative map key that can facilitate…

  14. 30 CFR 49.20 - Requirements for all coal mines.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Requirements for all coal mines. 49.20 Section... TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.20 Requirements for all coal mines. (a) The operator of each underground coal mine shall make available two certified mine...

  15. 30 CFR 49.20 - Requirements for all coal mines.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Requirements for all coal mines. 49.20 Section... TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.20 Requirements for all coal mines. (a) The operator of each underground coal mine shall make available two certified mine...

  16. 30 CFR 49.20 - Requirements for all coal mines.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Requirements for all coal mines. 49.20 Section... TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.20 Requirements for all coal mines. (a) The operator of each underground coal mine shall make available two certified mine...

  17. 30 CFR 49.20 - Requirements for all coal mines.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Requirements for all coal mines. 49.20 Section... TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.20 Requirements for all coal mines. (a) The operator of each underground coal mine shall make available two certified mine...

  18. 30 CFR 49.20 - Requirements for all coal mines.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Requirements for all coal mines. 49.20 Section... TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.20 Requirements for all coal mines. (a) The operator of each underground coal mine shall make available two certified mine...

  19. Mining-Induced Coal Permeability Change Under Different Mining Layouts

    NASA Astrophysics Data System (ADS)

    Zhang, Zetian; Zhang, Ru; Xie, Heping; Gao, Mingzhong; Xie, Jing

    2016-09-01

    To comprehensively understand the mining-induced coal permeability change, a series of laboratory unloading experiments are conducted based on a simplifying assumption of the actual mining-induced stress evolution processes of three typical longwall mining layouts in China, i.e., non-pillar mining (NM), top-coal caving mining (TCM) and protective coal-seam mining (PCM). A theoretical expression of the mining-induced permeability change ratio (MPCR) is derived and validated by laboratory experiments and in situ observations. The mining-induced coal permeability variation under the three typical mining layouts is quantitatively analyzed using the MPCR based on the test results. The experimental results show that the mining-induced stress evolution processes of different mining layouts do have an influence on the mechanical behavior and evolution of MPCR of coal. The coal mass in the PCM simulation has the lowest stress concentration but the highest peak MPCR (approximately 4000 %), whereas the opposite trends are observed for the coal mass under NM. The results of the coal mass under TCM fall between those for PCM and NM. The evolution of the MPCR of coal under different layouts can be divided into three sections, i.e., stable increasing section, accelerated increasing section and reducing section, but the evolution processes are slightly different for the different mining layouts. A coal bed gas intensive extraction region is recommended based on the MPCR distribution of coal seams obtained by simplifying assumptions and the laboratory testing results. The presented results are also compared with existing conventional triaxial compression test results to fully comprehend the effect of actual mining-induced stress evolution on coal property tests.

  20. Crisis management for coal mining

    SciTech Connect

    Britton, S.

    1987-12-01

    The author says coal mining requires the precise execution of tasks to minimize risks. Acknowledging risks and attempting to influence their impact is the basis of crisis management. Crisis management skills include recognizing, measuring, handling, and resolving any of the crisis situations an organization faces during the course of business. The author outlines four phases of a typical crisis and tells how to deal with each. He then discusses crisis forecasting and how to calculate the Crisis Impact Value.

  1. Borehole hydraulic coal mining system analysis

    NASA Technical Reports Server (NTRS)

    Floyd, E. L.

    1977-01-01

    The borehole hydraulic coal mining system accesses the coal seam through a hole drilled in the overburden. The mining device is lowered through the hole into the coal seam where it fragments the coal with high pressure water jets which pump it to the surface as a slurry by a jet pump located in the center of the mining device. The coal slurry is then injected into a pipeline for transport to the preparation plant. The system was analyzed for performance in the thick, shallow coal seams of Wyoming, and the steeply pitching seams of western Colorado. Considered were all the aspects of the mining operation for a 20-year mine life, producing 2,640,000 tons/yr. Effects on the environment and the cost of restoration, as well as concern for health and safety, were studied. Assumptions for design of the mine, the analytical method, and results of the analysis are detailed.

  2. Underground coal mining section data

    NASA Technical Reports Server (NTRS)

    Gabrill, C. P.; Urie, J. T.

    1981-01-01

    A set of tables which display the allocation of time for ten personnel and eight pieces of underground coal mining equipment to ten function categories is provided. Data from 125 full shift time studies contained in the KETRON database was utilized as the primary source data. The KETRON activity and delay codes were mapped onto JPL equipment, personnel and function categories. Computer processing was then performed to aggregate the shift level data and generate the matrices. Additional, documented time study data were analyzed and used to supplement the KETRON databased. The source data including the number of shifts are described. Specific parameters of the mines from which there data were extracted are presented. The result of the data processing including the required JPL matrices is presented. A brief comparison with a time study analysis of continuous mining systems is presented. The procedures used for processing the source data are described.

  3. 30 CFR 816.84 - Coal mine waste: Impounding structures.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Coal mine waste: Impounding structures. 816.84... ACTIVITIES § 816.84 Coal mine waste: Impounding structures. New and existing impounding structures constructed of coal mine waste or intended to impound coal mine waste shall meet the requirements of §...

  4. 30 CFR 817.81 - Coal mine waste: General requirements.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Coal mine waste: General requirements. 817.81... ACTIVITIES § 817.81 Coal mine waste: General requirements. (a) General. All coal mine waste disposed of in an... within a permit area, which are approved by the regulatory authority for this purpose. Coal mine...

  5. 30 CFR 817.81 - Coal mine waste: General requirements.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Coal mine waste: General requirements. 817.81... ACTIVITIES § 817.81 Coal mine waste: General requirements. (a) General. All coal mine waste disposed of in an... within a permit area, which are approved by the regulatory authority for this purpose. Coal mine...

  6. 30 CFR 816.81 - Coal mine waste: General requirements.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Coal mine waste: General requirements. 816.81... ACTIVITIES § 816.81 Coal mine waste: General requirements. (a) General. All coal mine waste disposed of in an... within a permit area, which are approved by the regulatory authority for this purpose. Coal mine...

  7. 30 CFR 817.84 - Coal mine waste: Impounding structures.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Coal mine waste: Impounding structures. 817.84... ACTIVITIES § 817.84 Coal mine waste: Impounding structures. New and existing impounding structures constructed of coal mine waste or intended to impound coal mine waste shall meet the requirements of §...

  8. 30 CFR 816.84 - Coal mine waste: Impounding structures.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Coal mine waste: Impounding structures. 816.84... ACTIVITIES § 816.84 Coal mine waste: Impounding structures. New and existing impounding structures constructed of coal mine waste or intended to impound coal mine waste shall meet the requirements of §...

  9. 30 CFR 816.81 - Coal mine waste: General requirements.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Coal mine waste: General requirements. 816.81... ACTIVITIES § 816.81 Coal mine waste: General requirements. (a) General. All coal mine waste disposed of in an... within a permit area, which are approved by the regulatory authority for this purpose. Coal mine...

  10. 30 CFR 716.6 - Coal mines in Alaska.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Coal mines in Alaska. 716.6 Section 716.6... PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.6 Coal mines in Alaska. (a) Permittees of surface coal mining operations in Alaska from which coal has been mined on or after August 3, 1977,...

  11. 30 CFR 716.6 - Coal mines in Alaska.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Coal mines in Alaska. 716.6 Section 716.6... PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.6 Coal mines in Alaska. (a) Permittees of surface coal mining operations in Alaska from which coal has been mined on or after August 3, 1977,...

  12. 30 CFR 817.84 - Coal mine waste: Impounding structures.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Coal mine waste: Impounding structures. 817.84... ACTIVITIES § 817.84 Coal mine waste: Impounding structures. New and existing impounding structures constructed of coal mine waste or intended to impound coal mine waste shall meet the requirements of §...

  13. 30 CFR 816.81 - Coal mine waste: General requirements.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Coal mine waste: General requirements. 816.81... ACTIVITIES § 816.81 Coal mine waste: General requirements. (a) General. All coal mine waste disposed of in an... within a permit area, which are approved by the regulatory authority for this purpose. Coal mine...

  14. 30 CFR 716.6 - Coal mines in Alaska.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Coal mines in Alaska. 716.6 Section 716.6... PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.6 Coal mines in Alaska. (a) Permittees of surface coal mining operations in Alaska from which coal has been mined on or after August 3, 1977,...

  15. 30 CFR 816.84 - Coal mine waste: Impounding structures.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Coal mine waste: Impounding structures. 816.84... ACTIVITIES § 816.84 Coal mine waste: Impounding structures. New and existing impounding structures constructed of coal mine waste or intended to impound coal mine waste shall meet the requirements of §...

  16. 30 CFR 817.81 - Coal mine waste: General requirements.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Coal mine waste: General requirements. 817.81... ACTIVITIES § 817.81 Coal mine waste: General requirements. (a) General. All coal mine waste disposed of in an... within a permit area, which are approved by the regulatory authority for this purpose. Coal mine...

  17. 30 CFR 817.84 - Coal mine waste: Impounding structures.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Coal mine waste: Impounding structures. 817.84... ACTIVITIES § 817.84 Coal mine waste: Impounding structures. New and existing impounding structures constructed of coal mine waste or intended to impound coal mine waste shall meet the requirements of §...

  18. 30 CFR 817.81 - Coal mine waste: General requirements.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Coal mine waste: General requirements. 817.81... ACTIVITIES § 817.81 Coal mine waste: General requirements. (a) General. All coal mine waste disposed of in an... within a permit area, which are approved by the regulatory authority for this purpose. Coal mine...

  19. 30 CFR 816.81 - Coal mine waste: General requirements.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Coal mine waste: General requirements. 816.81... ACTIVITIES § 816.81 Coal mine waste: General requirements. (a) General. All coal mine waste disposed of in an... within a permit area, which are approved by the regulatory authority for this purpose. Coal mine...

  20. 30 CFR 817.84 - Coal mine waste: Impounding structures.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Coal mine waste: Impounding structures. 817.84... ACTIVITIES § 817.84 Coal mine waste: Impounding structures. New and existing impounding structures constructed of coal mine waste or intended to impound coal mine waste shall meet the requirements of §...

  1. 30 CFR 816.84 - Coal mine waste: Impounding structures.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Coal mine waste: Impounding structures. 816.84... ACTIVITIES § 816.84 Coal mine waste: Impounding structures. New and existing impounding structures constructed of coal mine waste or intended to impound coal mine waste shall meet the requirements of §...

  2. 30 CFR 716.6 - Coal mines in Alaska.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Coal mines in Alaska. 716.6 Section 716.6... PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.6 Coal mines in Alaska. (a) Permittees of surface coal mining operations in Alaska from which coal has been mined on or after August 3, 1977,...

  3. 30 CFR 817.81 - Coal mine waste: General requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Coal mine waste: General requirements. 817.81... ACTIVITIES § 817.81 Coal mine waste: General requirements. (a) General. All coal mine waste disposed of in an... within a permit area, which are approved by the regulatory authority for this purpose. Coal mine...

  4. 30 CFR 816.84 - Coal mine waste: Impounding structures.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Coal mine waste: Impounding structures. 816.84... ACTIVITIES § 816.84 Coal mine waste: Impounding structures. New and existing impounding structures constructed of coal mine waste or intended to impound coal mine waste shall meet the requirements of §...

  5. 30 CFR 716.6 - Coal mines in Alaska.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Coal mines in Alaska. 716.6 Section 716.6... PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.6 Coal mines in Alaska. (a) Permittees of surface coal mining operations in Alaska from which coal has been mined on or after August 3, 1977,...

  6. 30 CFR 816.81 - Coal mine waste: General requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Coal mine waste: General requirements. 816.81... ACTIVITIES § 816.81 Coal mine waste: General requirements. (a) General. All coal mine waste disposed of in an... within a permit area, which are approved by the regulatory authority for this purpose. Coal mine...

  7. 30 CFR 817.84 - Coal mine waste: Impounding structures.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Coal mine waste: Impounding structures. 817.84... ACTIVITIES § 817.84 Coal mine waste: Impounding structures. New and existing impounding structures constructed of coal mine waste or intended to impound coal mine waste shall meet the requirements of §...

  8. Bidirectional, Automatic Coal-Mining Machine

    NASA Technical Reports Server (NTRS)

    Collins, Earl R., Jr.

    1986-01-01

    Proposed coal-mining machine operates in both forward and reverse directions along mine face. New design increases efficiency and productivity, because does not stop cutting as it retreats to starting position after completing pass along face. To further increase efficiency, automatic miner carries its own machinery for crushing coal and feeding it to slurry-transport tube. Dual-drum mining machine cuts coal in two layers, crushes, mixes with water, and feeds it as slurry to haulage tube. At end of pass, foward drum raised so it becomes rear drum, and rear drum lowered, becoming forward drum for return pass.

  9. Injury experience in coal mining, 1992

    SciTech Connect

    Reich, R.B.; Hugler, E.C.

    1994-05-01

    This Mine Safety and Health Administration (MSHA) informational report reviews in detail the occupational injury and illness experience of coal mining in the United States for 1992. Data reported by operators of mining establishments concerning work injuries are summarized by work location, accident classification, part of body injured, nature of injury, occupation, and anthracite or bituminous coal. Related information on employment, worktime, and operating activity also is presented. Data reported by independent contractors performing certain work at mining locations are depicted separately in this report. For ease of comparison between coal mining and the metal and nonmetal mineral mining industries, summary reference tabulations are included at the end of both the operator and the contractor sections of this report.

  10. Injury experience in coal mining, 1990

    SciTech Connect

    1991-01-01

    This Mine Safety and Health Administration (MSHA) informational report reviews in detail the occupational injury and illness experience of coal mining in the United States for 1990. Data reported by operators of mining establishments concerning work injuries are summarized by work location, accident classification, part of body injured, nature of injury, occupation, and anthracite or bituminous coal. Related information on employment, worktime, and operating activity also is presented. Data reported by independent contractors performing certain work at mining locations are depicted separately in this report. For ease of comparison between coal mining and the metal and nonmetal mineral mining industries, summary reference tabulations are included at the end of both the operator and the contractor sections of this report.

  11. Injury experience in coal mining, 1989

    SciTech Connect

    Not Available

    1990-01-01

    This Mine and Safety and Health Administration (MSHA) informational report reviews in detail the occupational injury and illness experience of coal mining in the United States for 1989. Data reported by operators of mining establishments concerning work injuries are summarized by work location, accident classification, part of body injured, nature of injury, occupation, and anthracite or bituminous coal. Related information on employment, worktime, and operating activity also is presented. Data reported by independent contractors performing certain work at mining locations are depicted separately in this report. For ease of comparison between coal mining and the metal and nonmetal mineral mining industries, summary reference tabulations are included at the end of both the operator and the contractor sections of this report. 3 figs., 46 tabs.

  12. Injury experience in coal mining, 1991

    SciTech Connect

    Not Available

    1991-12-31

    This Mine Safety and Health Administration (MSHA) informational report reviews in detail the occupational injury and illness experience of coal mining in the United States for 1991. Data reported by operators of mining establishments concerning work injuries are summarized by work location, accident classification, part of body injured, nature of injury, occupation, and anthracite or bituminous coal. Related information on employment, worktime, and operating activity also is presented. Data reported by independent contractors performing certain work at mining locations are depicted separately in this report. For ease of comparison between coal mining and the metal and nonmetal mineral mining industries, summary reference tabulations are included at the end of both the operator and the contractor sections of this report. Data used in compiling this report were reported by operators of coal mines and preparation plants on a mandatory basis as required under the Federal Mine Safety and Health Act of 1977, Public Law 91-173,as amended by Public Law 95-164. Since January 1, 1978, operators of mines or preparation plants or both which are subject to the Act have been required under 30 CFR, Part 50, to submit reports of injuries, occupational illnesses, and related data.

  13. Coal mine subsidence - western United States

    SciTech Connect

    Dunrud, C.R.

    1984-01-01

    Subsidence processes above underground mines consist of a gradual down-warping of the overburden into coal extraction panels, causing depressions, or a sudden collapse into individual mine openings, causing pits. Subsidence in surface mining areas is caused by compaction of rehandled overburden material, dewatering of aquifers or stress and strain readjustments. The time between mining and complete subsidence above underground mines in the western US commonly ranges from a few months to a few years, where down-warping occurs above extraction panels, to many years or decades where pillars are not mined. The duration between mining and the occurrence of sinkholes, however, can vary from a few decades to as long as centuries. The time necessary for depressions and pits in surface mining areas apparently depends on such factors as methods of emplacing and grading and rate of wetting the rehandled material, rate of dewatering of aquifers near the mine, and stress-strain readjustments.

  14. 30 CFR 819.13 - Auger mining: Coal recovery.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Auger mining: Coal recovery. 819.13 Section 819....13 Auger mining: Coal recovery. (a) Auger mining shall be conducted so as to maximize the utilization and conservation of the coal in accordance with § 816.59 of this chapter. (b) Auger mining shall...

  15. 30 CFR 819.13 - Auger mining: Coal recovery.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Auger mining: Coal recovery. 819.13 Section 819....13 Auger mining: Coal recovery. (a) Auger mining shall be conducted so as to maximize the utilization and conservation of the coal in accordance with § 816.59 of this chapter. (b) Auger mining shall...

  16. 30 CFR 716.5 - Anthracite coal mines.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Anthracite coal mines. 716.5 Section 716.5... PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.5 Anthracite coal mines. (a) Permittees of anthracite surface coal mining and reclamation operations in those States where the mines are regulated...

  17. 30 CFR 716.5 - Anthracite coal mines.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Anthracite coal mines. 716.5 Section 716.5... PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.5 Anthracite coal mines. (a) Permittees of anthracite surface coal mining and reclamation operations in those States where the mines are regulated...

  18. 78 FR 58567 - Criteria to Certify Coal Mine Rescue Teams

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-24

    ... Safety and Health Administration Criteria to Certify Coal Mine Rescue Teams AGENCY: Mine Safety and... Safety and Health Administration (MSHA) is requesting comments on revised instruction guides for coal... guides. Existing standards for coal mine rescue teams include criteria for mine operators to certify...

  19. 30 CFR 716.5 - Anthracite coal mines.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Anthracite coal mines. 716.5 Section 716.5... PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.5 Anthracite coal mines. (a) Permittees of anthracite surface coal mining and reclamation operations in those States where the mines are regulated...

  20. 30 CFR 819.13 - Auger mining: Coal recovery.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Auger mining: Coal recovery. 819.13 Section 819....13 Auger mining: Coal recovery. (a) Auger mining shall be conducted so as to maximize the utilization and conservation of the coal in accordance with § 816.59 of this chapter. (b) Auger mining shall...

  1. 30 CFR 819.13 - Auger mining: Coal recovery.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Auger mining: Coal recovery. 819.13 Section 819....13 Auger mining: Coal recovery. (a) Auger mining shall be conducted so as to maximize the utilization and conservation of the coal in accordance with § 816.59 of this chapter. (b) Auger mining shall...

  2. 30 CFR 819.13 - Auger mining: Coal recovery.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Auger mining: Coal recovery. 819.13 Section 819....13 Auger mining: Coal recovery. (a) Auger mining shall be conducted so as to maximize the utilization and conservation of the coal in accordance with § 816.59 of this chapter. (b) Auger mining shall...

  3. 30 CFR 716.5 - Anthracite coal mines.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Anthracite coal mines. 716.5 Section 716.5... PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.5 Anthracite coal mines. (a) Permittees of anthracite surface coal mining and reclamation operations in those States where the mines are regulated...

  4. 30 CFR 716.5 - Anthracite coal mines.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Anthracite coal mines. 716.5 Section 716.5... PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.5 Anthracite coal mines. (a) Permittees of anthracite surface coal mining and reclamation operations in those States where the mines are regulated...

  5. Geologic structures that affect Appalachian coal mines

    SciTech Connect

    Chase, F.E. )

    1993-01-01

    Hazardous geologic structures found in Appalachian coal mines have been responsible for numerous injuries and fatalities. In addition, these structures have been responsible for downtime and in some instances have even resulted in mine closures. For these reasons, the US Bureau of Mines has investigate the physical characteristics, occurrences, and support strategies to help anticipate and better control these structures. Structures that are addressed in this paper include slips, slickensides, clay veins, kettlebottoms, and sandstone channels.

  6. Characteristics of coal mine ventilation air flows.

    PubMed

    Su, Shi; Chen, Hongwei; Teakle, Philip; Xue, Sheng

    2008-01-01

    Coal mine methane (CMM) is not only a greenhouse gas but also a wasted energy resource if not utilised. Underground coal mining is by far the most important source of fugitive methane emissions, and approximately 70% of all coal mining related methane is emitted to the atmosphere through mine ventilation air. Therefore, research and development on mine methane mitigation and utilisation now focuses on methane emitted from underground coal mines, in particular ventilation air methane (VAM) capture and utilisation. To date, most work has focused on the oxidation of very low concentration methane. These processes may be classified based on their combustion kinetic mechanisms into thermal oxidation and catalytic oxidation. VAM mitigation/utilisation technologies are generally divided into two basic categories: ancillary uses and principal uses. However, it is possible that the characteristics of ventilation air flows, for example the variations in methane concentration and the presence of certain compounds, which have not been reported so far, could make some potential VAM mitigation and utilisation technologies unfeasible if they cannot cope with the characteristics of mine site ventilation air flows. Therefore, it is important to understand the characteristics of mine ventilation air flows. Moreover, dust, hydrogen sulphide, sulphur dioxide, and other possible compounds emitted through mine ventilation air into the atmosphere are also pollutants. Therefore, this paper presents mine-site experimental results on the characteristics of mine ventilation air flows, including methane concentration and its variations, dust loadings, particle size, mineral matter of the dust, and other compounds in the ventilation air flows. The paper also discusses possible correlations between ventilation air characteristics and underground mining activities.

  7. 30 CFR 49.40 - Requirements for large coal mines.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Requirements for large coal mines. 49.40 Section 49.40 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.40 Requirements for large...

  8. 30 CFR 49.40 - Requirements for large coal mines.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Requirements for large coal mines. 49.40 Section 49.40 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.40 Requirements for large...

  9. 30 CFR 49.40 - Requirements for large coal mines.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Requirements for large coal mines. 49.40 Section 49.40 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.40 Requirements for large...

  10. 30 CFR 49.30 - Requirements for small coal mines.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Requirements for small coal mines. 49.30 Section 49.30 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.30 Requirements for small...

  11. 30 CFR 49.40 - Requirements for large coal mines.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Requirements for large coal mines. 49.40 Section 49.40 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.40 Requirements for large...

  12. 30 CFR 49.30 - Requirements for small coal mines.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Requirements for small coal mines. 49.30 Section 49.30 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.30 Requirements for small...

  13. 30 CFR 49.30 - Requirements for small coal mines.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Requirements for small coal mines. 49.30 Section 49.30 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.30 Requirements for small...

  14. 30 CFR 49.30 - Requirements for small coal mines.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Requirements for small coal mines. 49.30 Section 49.30 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.30 Requirements for small...

  15. 30 CFR 49.30 - Requirements for small coal mines.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Requirements for small coal mines. 49.30 Section 49.30 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.30 Requirements for small...

  16. 30 CFR 49.40 - Requirements for large coal mines.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Requirements for large coal mines. 49.40 Section 49.40 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING MINE RESCUE TEAMS Mine Rescue Teams for Underground Coal Mines § 49.40 Requirements for large...

  17. 75 FR 17511 - Coal Mine Dust Sampling Devices

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-06

    ... recharged using the standard power supplies in mines (110 VAC). Several commenters supported the proposed... Labor Mine Safety and Health Adminisration 30 CFR Parts 18, 74, and 75 Coal Mine Dust Sampling Devices; High-Voltage Continuous Mining Machine Standard for Underground Coal Mines; Final Rules...

  18. Health care challenge in coal mines community.

    PubMed

    Golay, M S

    1992-01-01

    The present paper depicts salient features of environment and living conditions with the comparison of various diseases prevalent among underground coal miners, surface workers, asbestos mine workers and general population of Jharia-Dhanbad coalfield as conducted by CMRS during the past few years. The investigations on coal miners' community comprise of different morbid conditions with respiratory (22%), Pneumoconiosis (11.6%), Skin (35%), Eye (29%), Intestinal parasitic infestation (44.6%), Anaemia (42%), Immunostatus (V.D.R.L. Positive-19.9%), Status of injuries and Blood pressure, Water-borne diseases, housing facilities and excreta disposal. The paper also includes the analysis of disease pattern obtained from hospital records of two coal mines which depicts 19.1%, 24.7% and 16% members of coal miners' families suffering from disorder with respiratory, gastro-intestinal and fever respectively. With speedy industrialization of the country, the mining of coal resource comes first in the chain of socio-economic development. The speedy human industrial activities are based on 80% steam, metallurgical and thermal electrical energy which hinges on coal wings. The coal has also gradually occupied all the phases of social life, our clothes, books, newspapers, cooking gas, chemical paints, dye stuff, oil phenyl, Benzene, Naphthalene, Coal tar, scents and various types of unaccountable products come out from coal derivatives and pushed to serve in the today's market for our daily exigencies. Every day one finds a new coal based industry is coming up in the area. The coal is utilized in two hundred ways in our various walks of social life.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:10130926

  19. Health care challenge in coal mines community.

    PubMed

    Golay, M S

    1992-01-01

    The present paper depicts salient features of environment and living conditions with the comparison of various diseases prevalent among underground coal miners, surface workers, asbestos mine workers and general population of Jharia-Dhanbad coalfield as conducted by CMRS during the past few years. The investigations on coal miners' community comprise of different morbid conditions with respiratory (22%), Pneumoconiosis (11.6%), Skin (35%), Eye (29%), Intestinal parasitic infestation (44.6%), Anaemia (42%), Immunostatus (V.D.R.L. Positive-19.9%), Status of injuries and Blood pressure, Water-borne diseases, housing facilities and excreta disposal. The paper also includes the analysis of disease pattern obtained from hospital records of two coal mines which depicts 19.1%, 24.7% and 16% members of coal miners' families suffering from disorder with respiratory, gastro-intestinal and fever respectively. With speedy industrialization of the country, the mining of coal resource comes first in the chain of socio-economic development. The speedy human industrial activities are based on 80% steam, metallurgical and thermal electrical energy which hinges on coal wings. The coal has also gradually occupied all the phases of social life, our clothes, books, newspapers, cooking gas, chemical paints, dye stuff, oil phenyl, Benzene, Naphthalene, Coal tar, scents and various types of unaccountable products come out from coal derivatives and pushed to serve in the today's market for our daily exigencies. Every day one finds a new coal based industry is coming up in the area. The coal is utilized in two hundred ways in our various walks of social life.(ABSTRACT TRUNCATED AT 250 WORDS)

  20. VIEW OF FORMER BERWINDWHITE COAL MINING COMPANY MAIN OFFICE BUILDING, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    VIEW OF FORMER BERWIND-WHITE COAL MINING COMPANY MAIN OFFICE BUILDING, CA. 1902, LOOKING NORTH. - Berwind-White Coal Mining Company, Main Office, Fifteenth Street & Somerset Avenue, Windber, Somerset County, PA

  1. Environmental impact assessment of selenium from coal mine spoils

    SciTech Connect

    Atalay, A.

    1990-10-01

    The development of environmental impact assessment of selenium from coal mine spoils will provide a useful guideline to predict the environmental impact of Se from abandoned coal mine operations. Information obtained from such a study can be applied in areas where coal mining has not yet begun in order to predict and identify the geochemistry of rocks, soils, surface waters and groundwaters likely to be disturbed by coal mining operation.

  2. Coal mine ground control. 3rd ed.

    SciTech Connect

    Peng, S.S.

    2008-09-15

    The third edition not only completely revises and updates the original subject areas, but also is broadened to include a number of new topics such as high horizontal stresses, computer modeling, and highwall stability. The subject areas covered in this book define the current field of coal mine ground control, except for the recently emerging topic of mine seals and some conventional subjects such as coal/rock cutting and impoundment dams. It contains 1,134 references from all published sources, and archived since 1876.

  3. Characterization of the 1986 coal mining workforce

    SciTech Connect

    Butani, S.J.; Bartholemew, A.M.

    1988-01-01

    In 1986, the Bureau of Mines conducted a probability sample survey, Mining Industry Population Survey, to measure such employee characteristics as occupation; principal equipment operated; work location at the mine; present job, present company, and total mining experience; job-related training during the last 2 yr; age; sex; race; and education. The population estimates are necessary to properly analyze the Mine Safety and Health Administration (MSHA) injury (includes illness and fatality data) statistics; that is, to compare and contrast injury rates for various subpopulations in order to identify those groups that are exhibiting higher than average injury rates. This report uses the survey's results to characterize the U.S. coal mining workforce from March through September 1986.

  4. Health effects of respirable coal mine dust: coal workers' pneumoconiosis

    SciTech Connect

    Costantino, J.P.

    1981-10-01

    Coal worker's pneumoconiosis is discussed. The nature of the disease is described; it is classified as either simple coal worker's pneumoconiosis or progressive, massive fibrosis (PMF). Simple coal worker's pneumoconiosis is not considered to cause clinical illness. Widespread scarring of the lungs, resulting shortness of breath, pulmonary hypertension and congestive heart failure may be caused by PMF. Chronic exposure to respirable dust from coal mines is the most significant variable associated with the development of coal worker's pneumoconiosis. Exposure-response models are described, and factors affecting exposure to various types of dust are identified. Data for the prevalence of the disease in USA are presented, and the incidence among US mineworkers is discussed. (38 refs.)

  5. 30 CFR 817.83 - Coal mine waste: Refuse piles.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Coal mine waste: Refuse piles. 817.83 Section... ACTIVITIES § 817.83 Coal mine waste: Refuse piles. Refuse piles shall meet the requirements of § 817.81, the... removed from the disposal area prior to placement of coal mine waste. Topsoil shall be removed,...

  6. 30 CFR 716.4 - Special bituminous coal mines.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Special bituminous coal mines. 716.4 Section... INTERIOR INITIAL PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.4 Special bituminous coal mines. (a) Definition. Special bituminous coal surface mines as used in this section means those...

  7. 30 CFR 716.4 - Special bituminous coal mines.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Special bituminous coal mines. 716.4 Section... INTERIOR INITIAL PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.4 Special bituminous coal mines. (a) Definition. Special bituminous coal surface mines as used in this section means those...

  8. 30 CFR 816.83 - Coal mine waste: Refuse piles.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Coal mine waste: Refuse piles. 816.83 Section... ACTIVITIES § 816.83 Coal mine waste: Refuse piles. Refuse piles shall meet the requirements of § 816.81, the... removed from the disposal area prior to placement of coal mine waste. Topsoil shall be removed,...

  9. 30 CFR 716.4 - Special bituminous coal mines.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Special bituminous coal mines. 716.4 Section... INTERIOR INITIAL PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.4 Special bituminous coal mines. (a) Definition. Special bituminous coal surface mines as used in this section means those...

  10. 30 CFR 817.83 - Coal mine waste: Refuse piles.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Coal mine waste: Refuse piles. 817.83 Section... ACTIVITIES § 817.83 Coal mine waste: Refuse piles. Refuse piles shall meet the requirements of § 817.81, the... removed from the disposal area prior to placement of coal mine waste. Topsoil shall be removed,...

  11. 30 CFR 716.4 - Special bituminous coal mines.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Special bituminous coal mines. 716.4 Section... INTERIOR INITIAL PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.4 Special bituminous coal mines. (a) Definition. Special bituminous coal surface mines as used in this section means those...

  12. 30 CFR 716.4 - Special bituminous coal mines.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Special bituminous coal mines. 716.4 Section... INTERIOR INITIAL PROGRAM REGULATIONS SPECIAL PERFORMANCE STANDARDS § 716.4 Special bituminous coal mines. (a) Definition. Special bituminous coal surface mines as used in this section means those...

  13. Managing coal combustion residues in mines

    SciTech Connect

    2006-07-01

    Burning coal in electric utility plants produces, in addition to power, residues that contain constituents which may be harmful to the environment. The management of large volumes of coal combustion residues (CCRs) is a challenge for utilities, because they must either place the CCRs in landfills, surface impoundments, or mines, or find alternative uses for the material. This study focuses on the placement of CCRs in active and abandoned coal mines. The Committee on Mine Placement of Coal Combustion Wastes of the National Research Council believes that placement of CCRs in mines as part of the reclamation process may be a viable option for the disposal of this material as long as the placement is properly planned and carried out in a manner that avoids significant adverse environmental and health impacts. This report discusses a variety of steps that are involved in planning and managing the use of CCRs as minefills, including an integrated process of CCR characterization and site characterization, management and engineering design of placement activities, and design and implementation of monitoring to reduce the risk of contamination moving from the mine site to the ambient environment. Enforceable federal standards are needed for the disposal of CCRs in minefills to ensure that states have adequate, explicit authority and that they implement minimum safeguards. 267 refs., 6 apps.

  14. 76 FR 63238 - Proximity Detection Systems for Continuous Mining Machines in Underground Coal Mines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-12

    .... Availability of Information MSHA published the proposed rule in the Federal Register on August 31, 2011 (76 FR... Mining Machines in Underground Coal Mines AGENCY: Mine Safety and Health Administration, Labor. ACTION... Proximity Detection Systems for Continuous Mining Machines in Underground Coal Mines, published on August...

  15. Automated Coal-Mine Shuttle Car

    NASA Technical Reports Server (NTRS)

    Collins, E. R., Jr.

    1984-01-01

    Cable-guided car increases efficiency in underground coal mines. Unmanned vehicle contains storage batteries in side panels for driving traction motors located in wheels. Batteries recharged during inactive periods or slid out as unit and replaced by fresh battery bank. Onboard generator charges batteries as car operates.

  16. Coal Mining Technology, An Innovative Program.

    ERIC Educational Resources Information Center

    Wabash Valley Coll., Mt. Carmel, IL.

    Described in detail in this report are the processes and procedures involved in the development of a State funded curriculum and program for a new emerging technology, in this instance a Coal Mining Technology Program, to be taught at Wabash Valley College in Illinois. The document provides a step-by-step account of the determination of need,…

  17. Generating power with drained coal mine methane

    SciTech Connect

    2005-09-01

    The article describes the three technologies most commonly used for generating electricity from coal mine methane: internal combustion engines, gas turbines, and microturbines. The most critical characteristics and features of these technologies, such as efficiency, output and size are highlighted. 5 refs.

  18. Presentations from the 1992 Coal Mining Impoundment Informational Meeting

    SciTech Connect

    Not Available

    1993-12-31

    On May 20 and 21, 1992, the MSHA Coal Mining Impoundment Informational Meeting was held at the National Mine Health and Safety Academy in Beckley, West Virginia. Fifteen presentations were given on key issues involved in the design and construction of dams associated with coal mining. The attendees were told that to improve the consistency among the plan reviewers, engineers from the Denver and Pittsburgh Technical Support Centers meet twice annually to discuss specific technical issues. It was soon discovered that the topics being discussed needed to be shared with anyone involved with coal waste dam design, construction, or inspection. The only way to accomplish that goal was through the issuance of Procedure Instruction Letters. The Letters present a consensus of engineering philosophy that could change over time. They do not present policy or carry the force of law. Currently, thirteen position papers have been disseminated and more will follow as the need arises. The individual paper were not even entered into the database.

  19. Noise exposures in US coal mines

    SciTech Connect

    Seiler, J.P.; Valoski, M.P.; Crivaro, M.A.

    1994-05-01

    Mine Safety and Health Administration (MSHA) inspectors conduct full-shift environmental noise surveys to determine the occupational noise levels to which coal miners are exposed. These noise surveys are performed to determine compliance with the noise standard promulgated under the Federal Mine Safety and Health Act of 1977. Data from over 60,000 full-shift noise surveys conducted from fiscal year 1986 through 1992 were entered into a computer data base to facilitate analysis. This paper presents the mean and standard deviation of over 60,000 full-shift noise dose measurements for various underground and surface coal mining occupations. Additionally, it compares and contrasts the levels with historical noise exposure measurements for selected coal mining occupations that were published in the 1970`s. The findings were that the percentage of miners surveyed that were subjected to noise exposures above 100%, neglecting personal hearing protectors, were 26.5% and 21.6% for surface and underground mining, respectively. Generally, the trend is that the noise exposures for selected occupations have decreased since the 1970`s.

  20. Radon concentration measurements in bituminous coal mines.

    PubMed

    Fisne, Abdullah; Okten, Gündüz; Celebi, Nilgün

    2005-01-01

    Radon measurements were carried out in Kozlu, Karadon and Uzülmez underground coal mines of Zonguldak bituminous coal basin in Turkey. Passive-time integrating method, which is the most widely used technique for the measurement of radon concentration in air, was applied by using nuclear etched track detectors (CR-39) in the study area. The radon concentration measurements were performed on a total of 42 points in those three mines. The annual exposure, the annual effective dose and lifetime fatality risk, which are the important parameters for the health of workers, were estimated based on chronic occupational exposure to the radon gas, which is calculated using UNCEAR-2000 and ICRP-65 models. The radon concentrations at several coal production faces are higher than the action level of 1000 Bq m(-3). It is suggested that the ventilation rates should be rearranged to reduce the radon concentration.

  1. 30 CFR 912.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 912.764 Section 912.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE IDAHO § 912.764 Process for designating areas unsuitable for surface coal mining... coal mining and reclamation operations....

  2. ESTIMATE OF GLOBAL METHANE EMISSIONS FROM COAL MINES

    EPA Science Inventory

    Country-specific emissions of methane (CH4) from underground coal mines, surface coal mines, and coal crushing and transport operations are estimated for 1989. Emissions for individual countries are estimated by using two sets of regression equations (R2 values range from 0.56 to...

  3. 78 FR 58264 - Refuge Alternatives for Underground Coal Mines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-23

    ... INFORMATION: On August 8, 2013 (78 FR 48593), MSHA published a Request for Information on Refuge Alternatives... Coal Mines AGENCY: Mine Safety and Health Administration, Labor. ACTION: Request for information...) on Refuge Alternatives for Underground Coal Mines. This extension gives interested parties...

  4. 43 CFR 20.402 - Interests in underground or surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ..., debentures, warrants, partnership shares, or other holdings and also means any other arrangement where the... interests held by his or her spouse, dependent child and other relatives, including in-laws, residing in the..., dependent child or other resident relative holds a financial interest. (3) Coal mining operation means...

  5. Environmental damage and countermeasures in Chinese coal mine areas

    SciTech Connect

    Hu, B. |; Cui, Z.

    1998-12-31

    The paper discusses three aspects of the ecological environmental damage in China: ground subsidence due to underground coal mining, pollution of mine refuse from underground, and release of fly ash from power plants within coal mine areas. The paper proposes the comprehensive countermeasures for solving these problems. The author puts forward several ways and applications of disposal which could help alleviate the problems, and introduces the subsidence prediction principle in long wall mining. This technology calculates the subsidence, displacement and deformation at every point according to mining schedule. It provides a very useful tool for subsidence control. Finally, the author provides some suggestions to improve the environment in Chinese coal mine areas.

  6. 77 FR 26046 - Proposed Extension of Existing Information Collection; Ground Control for Surface Coal Mines and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-02

    ... for Surface Coal Mines and Surface Work Areas of Underground Coal Mines AGENCY: Mine Safety and Health...)) (the Mine Act)) requires that frequent inspections and investigations in coal or other mines shall be... Act requires that every operator of a coal or other mine establish and maintain records, make...

  7. Determining the research needs of the surface coal mining industry

    SciTech Connect

    Zell, L.M.

    1982-12-01

    This paper reveals avenues open to the coal industry to help gain technology and research information needed to meet the requirements of the Surface Mining Control and Reclamation Act of 1977. It discusses projects of the Department of Energy's (DOE) Office of Coal Mining and the Mining and Reclamation Council of America (MARC) to help meet the environmental needs as well as the coal industry needs.

  8. Backfill hydrologic characteristics in a Tennessee area surface coal mine

    SciTech Connect

    Blackburn, C.G.

    1996-12-31

    The hydrological characteristics of backfill in a Tennessee area surface coal mine provide useful information concerning the aqueous environment in a recovering water table within a reclaimed surface mine. Chemical analysis of water samples provide a measure of reclamation activities.

  9. Impacts of Coal Seam Gas (Coal Bed Methane) and Coal Mining on Water Resources in Australia

    NASA Astrophysics Data System (ADS)

    Post, D. A.

    2013-12-01

    Mining of coal bed methane deposits (termed ';coal seam gas' in Australia) is a rapidly growing source of natural gas in Australia. Indeed, expansion of the industry is occurring so quickly that in some cases, legislation is struggling to keep up with this expansion. Perhaps because of this, community concern about the impacts of coal seam gas development is very strong. Responding to these concerns, the Australian Government has recently established an Independent Expert Scientific Committee (IESC) to provide advice to the Commonwealth and state regulators on potential water-related impacts of coal seam gas and large coal mining developments. In order to provide the underlying science to the IESC, a program of ';bioregional assessments' has been implemented. One aim of these bioregional assessments is to improve our understanding of the connectivity between the impacts of coal seam gas extraction and groundwater aquifers, as well as their connection to surface water. A bioregional assessment can be defined as a scientific analysis of the ecology, hydrology, geology and hydrogeology of a bioregion, with explicit assessment of the potential direct, indirect and cumulative impacts of coal seam gas and large coal mining development on water resources. These bioregional assessments are now being carried out across large portions of eastern Australia which are underlain by coal reserves. This presentation will provide an overview of the issues related to the impacts of coal seam gas and coal mining on water resources in Australia. The methodology of undertaking bioregional assessments will be described, and the application of this methodology to six priority bioregions in eastern Australia will be detailed. Preliminary results of the program of research to date will be assessed in light of the requirements of the IESC to provide independent advice to the Commonwealth and State governments. Finally, parallels between the expansion of the industry in Australia with that

  10. Extracting value from coal mine methane

    SciTech Connect

    Liebert, B.

    2009-06-15

    Emerging US policy to regulate greenhouse gas (GHG) emissions through a cap-and-trade program presents mine managers with a new opportunity to explore and develop methane utilization or abatement projects that generate value from the anodization of carbon offset credits. In addition, the rising focus on US energy security and domestic energy supply is promoting mine managers and engineers to give further consideration to the importance of their methane gas by-products. The market through which coal mine methane offset projects can be developed and carbon offset credits monetized is quickly maturing. While many methane utilization projects have previously been uneconomical, the carbon offset credit market provides a new set of financing tools for mine engineers to capitalize these projects today. Currently , there are two certification programs that have approved project protocols for CMM projects. The Voluntary Carbon Standard (VCS) offers a methodology approved under the Clean Development Mechanism, the international compliance based offset market under the Kyoto Protocol. The VCS protocol is applicable to projects that combust ventilation air methane (VAM) and methane extracted from pre-and post-mine drainage systems. The Chicago Climate Exchange (CCX), which operates a voluntary yet binding cap-and-trade market, also has an approved protocol for CMM projects. CCX's protocol can be applied to projects combusting VAM, and methane extracted from pre-and-post-mine drainage systems, as well as abandoned mines. The article describes two case studies - Developing a gob gas utilization project financed by carbon offset credits and First VAM oxidation system to be commissioned at an operating mine in the US. 1 tab., 4 photos.

  11. 78 FR 27442 - Coal Mine Dust Sampling Devices; Correction

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-10

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Mine Safety and Health Administration Coal Mine Dust Sampling Devices; Correction AGENCY: Mine Safety and Health Administration, Labor. ACTION: Notice; correction. SUMMARY: On April 30, 2013, Mine Safety...

  12. 76 FR 70075 - Proximity Detection Systems for Continuous Mining Machines in Underground Coal Mines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-10

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Mine... Mining Machines in Underground Coal Mines AGENCY: Mine Safety and Health Administration, Labor. ACTION... Mine Safety and Health Administration (MSHA) is extending the comment period on the proposed...

  13. The upper pennsylvanian pittsburgh coal bed: Resources and mine models

    USGS Publications Warehouse

    Watson, W.D.; Ruppert, L.F.; Tewalt, S.J.; Bragg, L.J.

    2001-01-01

    The U.S. Geological Survey recently completed a digital coal resource assessment model of the Upper Pennsylvanian Pittsburgh coal bed, which indicates that after subtracting minedout coal, 16 billion short tons (14 billion tonnes) remain of the original 34 billion short tons (31 billion tonnes) of coal. When technical, environmental, and social restrictions are applied to the remaining Pittsburgh coal model, only 12 billion short tons (11 billion tonnes) are available for mining. Our assessment models estimate that up to 0.61 billion short tons (0.55 billion tonnes), 2.7 billion short tons (2.4 billion tonnes), and 8.5 billion short tons (7.7 billion tonnes) could be available for surface mining, continuous mining, and longwall mining, respectively. This analysis is an example of a second-generation regional coal availability study designed to model recoverability characteristics for all the major coal beds in the United States. ?? 2001 International Association for Mathematical Geology.

  14. Effects of coal mine subsidence in the Sheridan, Wyoming, area

    USGS Publications Warehouse

    Dunrud, C. Richard; Osterwald, Frank W.

    1980-01-01

    Analyses of the surface effects of past underground coal mining in the Sheridan, Wyoming, area suggest that underground mining of strippable coal deposits may damage the environment more over long periods of time than would modern surface mining, provided proper restoration procedures are followed after surface mining. Subsidence depressions and pits are a continuing hazard to the environment and to man's activities in the Sheridan, Wyo., area above abandoned underground mines in weak overburden less than about 60 m thick and where the overburden is less than about 10-15 times the thickness of coal mined. In addition, fires commonly start by spontaneous ignition when water and air enter the abandoned mine workings via subsidence cracks and pits. The fires can then spread to unmined coal as they create more cavities, more subsidence, and more cracks and pits through which air can circulate. In modern surface mining operations the total land surface underlain by minable coal is removed to expose the coal. The coal is removed, the overburden and topsoil are replaced, and the land is regraded and revegetated. The land, although disturbed, can be more easily restored and put back into use than can land underlain by abandoned underground mine workings in areas where the overburden is less than about 60 m thick or less than about 10-15 times the thickness of coal mined. The resource recovery of modern surface mining commonly is much greater than that of underground mining procedures. Although present-day underground mining technology is advanced as compared to that of 25-80 years ago, subsidence resulting from underground mining of thick coal beds beneath overburden less than about 60 m thick can still cause greater damage to surface drainage, ground water, and vegetation than can properly designed surface mining operations. This report discusses (11 the geology and surface and underground effects of former large-scale underground coal mining in a 50-km 2 area 5-20 km

  15. 30 CFR 817.87 - Coal mine waste: Burning and burned waste utilization.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Coal mine waste: Burning and burned waste...-UNDERGROUND MINING ACTIVITIES § 817.87 Coal mine waste: Burning and burned waste utilization. (a) Coal mine... extinguishing operations. (b) No burning or unburned coal mine waste shall be removed from a permitted...

  16. 30 CFR 816.87 - Coal mine waste: Burning and burned waste utilization.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Coal mine waste: Burning and burned waste...-SURFACE MINING ACTIVITIES § 816.87 Coal mine waste: Burning and burned waste utilization. (a) Coal mine... extinguishing operations. (b) No burning or burned coal mine waste shall be removed from a permitted...

  17. 30 CFR 75.1907 - Diesel-powered equipment intended for use in underground coal mines.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... underground coal mines. 75.1907 Section 75.1907 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Diesel-Powered Equipment § 75.1907 Diesel-powered equipment intended for use in underground coal mines. (a) As...

  18. 30 CFR 817.87 - Coal mine waste: Burning and burned waste utilization.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Coal mine waste: Burning and burned waste...-UNDERGROUND MINING ACTIVITIES § 817.87 Coal mine waste: Burning and burned waste utilization. (a) Coal mine... extinguishing operations. (b) No burning or unburned coal mine waste shall be removed from a permitted...

  19. 30 CFR 75.1907 - Diesel-powered equipment intended for use in underground coal mines.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... underground coal mines. 75.1907 Section 75.1907 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Diesel-Powered Equipment § 75.1907 Diesel-powered equipment intended for use in underground coal mines. (a) As...

  20. 30 CFR 75.1907 - Diesel-powered equipment intended for use in underground coal mines.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... underground coal mines. 75.1907 Section 75.1907 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Diesel-Powered Equipment § 75.1907 Diesel-powered equipment intended for use in underground coal mines. (a) As...

  1. 30 CFR 817.87 - Coal mine waste: Burning and burned waste utilization.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Coal mine waste: Burning and burned waste...-UNDERGROUND MINING ACTIVITIES § 817.87 Coal mine waste: Burning and burned waste utilization. (a) Coal mine... extinguishing operations. (b) No burning or unburned coal mine waste shall be removed from a permitted...

  2. 30 CFR 816.87 - Coal mine waste: Burning and burned waste utilization.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Coal mine waste: Burning and burned waste...-SURFACE MINING ACTIVITIES § 816.87 Coal mine waste: Burning and burned waste utilization. (a) Coal mine... extinguishing operations. (b) No burning or burned coal mine waste shall be removed from a permitted...

  3. 30 CFR 75.1907 - Diesel-powered equipment intended for use in underground coal mines.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... underground coal mines. 75.1907 Section 75.1907 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Diesel-Powered Equipment § 75.1907 Diesel-powered equipment intended for use in underground coal mines. (a) As...

  4. 30 CFR 816.87 - Coal mine waste: Burning and burned waste utilization.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Coal mine waste: Burning and burned waste...-SURFACE MINING ACTIVITIES § 816.87 Coal mine waste: Burning and burned waste utilization. (a) Coal mine... extinguishing operations. (b) No burning or burned coal mine waste shall be removed from a permitted...

  5. Surface Mining: Soil, Coal, and Society

    NASA Astrophysics Data System (ADS)

    Singer, S. Fred

    Soil is a resource that is for all practical purposes nonrenewable. Natural soils have been formed over periods of thousands of years, although with intensive management and with inputs of nutrients and conditioners this time could be reduced.Coal is another precious resource, of critical importance as an interim fuel for perhaps the next hundred years or so, until renewable energy resources based on nuclear fusion or solar energy can become economic and widespread. Surface mining is the most efficient method for obtaining coal at lowest cost. But it disturbs the soil and takes it out of agricultural production for many years or decades, and sometimes forever, unless the land is properly restored at considerable cost.

  6. Respirable dust levels in coal, metal, and nonmetal mines

    SciTech Connect

    Watts, W.F. Jr.; Parker, D.R.

    1987-01-01

    The Bureau of Mines developed the Mine Inspection Data Analysis system (MIDAS). MIDAS is a computerized, industrial hygiene data base capable of statistically analyzing environmental data collected in coal and noncoal mines and mills by Mine Safety and Health Administration (MSHA) inspectors or mine operators. The objectives of this report are to describe the current contents of MIDAS, to report analyses of coal and noncoal mine respirable dust samples collected by MSHA inspectors, and to evaluate the proposed change in the metal and nonmetal respirable dust standard from a formula based upon the percentage of quartz identified in the sample to 100 ..mu..g/m/sup 3/ of respirable quartz.

  7. R&D and Technological Change in Coal Mining.

    ERIC Educational Resources Information Center

    Baker, Joe G.

    This report examines the issue of research and development (R and D) as well as technological changes in coal mining, focusing primarily on deep coal mining from 1970 to the present. First, a conceptual framework for classification of R and D as well as technological change is developed. A review of the literature that gives a mixed impression of…

  8. Coal preparation in the optimisation of Middelburg mine services

    SciTech Connect

    Hand, P.; Gallagher, K.

    1996-12-31

    The Coal Reserves Utilization (CRU) project was constituted in 1991 by Randcoal with the objective of maximising the return from the two adjacent mines of Duvha Opencast Services and Middelburg Mine Services. The multi-disciplined project team conducted an in depth investigation into the optimization of the combined coal reserves and their utilization. This resulted in the project being approved in December 1993 with the first coal being delivered in January 1995. The two mining operations were combined into a single entity, called Middelburg Mine Services, on the first of January 1995.

  9. Numerical study on 4-1 coal seam of Xiaoming mine in ascending mining.

    PubMed

    Lan, Tianwei; Zhang, Hongwei; Li, Sheng; Han, Jun; Song, Weihua; Batugin, A C; Tang, Guoshui

    2015-01-01

    Coal seams ascending mining technology is very significant, since it influences the safety production and the liberation of dull coal, speeds up the construction of energy, improves the stability of stope, and reduces or avoids deep hard rock mining induced mine disaster. Combined with the Xiaoming ascending mining mine 4-1, by numerical calculation, the paper analyses ascending mining 4-1 factors, determines the feasibility of ascending mining 4-1 coalbed, and proposes roadway layout program about working face, which has broad economic and social benefits.

  10. Investigation of relationship between barometric pressure and coal and gas outburst events in underground coal mining

    NASA Astrophysics Data System (ADS)

    Yönet, Sinem; Esen, Olgun; Fişne, Abdullah

    2015-04-01

    Coal and gas outburst is a serious risk which occurs during the mine production. This accident results both ejection of high volumes of gas and high amount of coal into the mine production area, and death of mining workers for many years in Turkey. Outburst of gas, coal and rock can be defined as sudden release of coal and rock accompanied by large quantities of gas into the working face or other mine workings. It is a phenomena that influenced by geological structure such as folds, joints of rocks or coal seams, is also still investigated for many years. Zonguldak Coal Basin is the main part of the Upper Carboniferous bituminous coal basin of Turkey. Much of the bituminous coal mining has thus been concentrated in the Zonguldak Basin which is located on the Black Sea coast. The coal field has been disturbed by tectonic activity, first by Hercynian and later by Alpine orogenesis resulting in folding and faulting of strata. This formation has a complex structural geology which consists mostly fault zones, anticlinal and syncline strata and because of this a large amount of methane gases are adsorbed or accumulated in strata or in coal fractures, pores and micropores. There are 5 Collieries exists in Zonguldak Coalfield and coal and gas outbursts were occurred only in two collieries such as Karadon and Kozlu Mines. In addition at a number of 90 coal and gas outburst events were experienced in these collieries. Based on the analysis of data, oscillation at barometric pressure and temperature values at the location of Kozlu and Karadon Mines were seen when coal and gas outburst events were occurred. In this study, barometric pressure and temperature changes are investigated at Kozlu and Karadon Mines. Also the relationship between the variation at temperature with barometric pressure and coal and gas outbursts are evaluated. It can be understand that this investigation depends to field observations and macroscopic considerations and on the purpose of predicting the

  11. Economic baselines for current underground coal mining technology

    NASA Technical Reports Server (NTRS)

    Mabe, W. B.

    1979-01-01

    The cost of mining coal using a room pillar mining method with continuous miner and a longwall mining system was calculated. Costs were calculated for the years 1975 and 2000 time periods and are to be used as economic standards against which advanced mining concepts and systems will be compared. Some assumptions were changed and some internal model stored data was altered from the original calculations procedure chosen, to obtain a result that more closely represented what was considered to be a standard mine. Coal seam thicknesses were varied from one and one-half feet to eight feet to obtain the cost of mining coal over a wide range. Geologic conditions were selected that had a minimum impact on the mining productivity.

  12. A life-cycle description of underground coal mining

    NASA Technical Reports Server (NTRS)

    Lavin, M. L.; Borden, C. S.; Duda, J. R.

    1978-01-01

    An initial effort to relate the major technological and economic variables which impact conventional underground coal mining systems, in order to help identify promising areas for advanced mining technology is described. The point of departure is a series of investment analyses published by the United States Bureau of Mines, which provide both the analytical framework and guidance on a choice of variables.

  13. Rock mass response to the decline in underground coal mining

    SciTech Connect

    Holub, K.

    2006-01-15

    Geomechanical problems of mining in the Ostrava-Karvina Coal Basin were studied on the basis of longterm experience gained from seismological observations. They could serve as reasonable models of rock-mass response to temporary reduction and gradual decline in mining activities and mine closure.

  14. 30 CFR 75.1107-11 - Extinguishing agents; requirements on mining equipment employed in low coal.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... equipment employed in low coal. 75.1107-11 Section 75.1107-11 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES... § 75.1107-11 Extinguishing agents; requirements on mining equipment employed in low coal. On...

  15. 30 CFR 77.1713 - Daily inspection of surface coal mine; certified person; reports of inspection.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Daily inspection of surface coal mine... ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES Miscellaneous § 77.1713 Daily inspection of...

  16. 20 CFR 726.203 - Federal Coal Mine Health and Safety Act endorsement.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 3 2011-04-01 2011-04-01 false Federal Coal Mine Health and Safety Act... OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG BENEFITS; REQUIREMENTS FOR COAL MINE OPERATOR'S INSURANCE Insurance Contracts § 726.203 Federal Coal Mine Health...

  17. 20 CFR 726.203 - Federal Coal Mine Health and Safety Act endorsement.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false Federal Coal Mine Health and Safety Act... LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG BENEFITS; REQUIREMENTS FOR COAL MINE OPERATOR'S INSURANCE Insurance Contracts § 726.203 Federal Coal Mine Health and Safety...

  18. 30 CFR 75.1107-11 - Extinguishing agents; requirements on mining equipment employed in low coal.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... equipment employed in low coal. 75.1107-11 Section 75.1107-11 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES... § 75.1107-11 Extinguishing agents; requirements on mining equipment employed in low coal. On...

  19. 77 FR 62266 - Proposed Extension of Existing Information Collection; Daily Inspection of Surface Coal Mines...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-12

    ... of Surface Coal Mines; Certified Person; Reports of Inspection (Pertains to Surface Coal Mines... the protection of life and prevention of injuries in coal or other mines. 30 U.S.C. 811(a... 30 of the Code of Federal Regulations (30 CFR 77.1713) requires coal mine operators to...

  20. 30 CFR 75.1107-11 - Extinguishing agents; requirements on mining equipment employed in low coal.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... equipment employed in low coal. 75.1107-11 Section 75.1107-11 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES... § 75.1107-11 Extinguishing agents; requirements on mining equipment employed in low coal. On...

  1. 30 CFR 75.1107-11 - Extinguishing agents; requirements on mining equipment employed in low coal.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... equipment employed in low coal. 75.1107-11 Section 75.1107-11 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES... § 75.1107-11 Extinguishing agents; requirements on mining equipment employed in low coal. On...

  2. Explosive fluid transmitted shock method for mining deeply buried coal

    DOEpatents

    Archibald, Paul B.

    1976-06-22

    A method for recovering coal from deeply buried deposits comprising drilling a hole down into a coal seam, filling the hole with water, and periodically detonating an explosive charge at the bottom of the water-filled hole. The water transmits the explosive shock wave to the face of the coal seam, thereby fracturing and dislodging the coal. The resulting suspension of loose coal in water is then pumped to the surface where the coal is recovered and the water is recycled to the mining operation.

  3. 30 CFR 933.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 933.762 Section 933.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designation Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mining and reclamation operations....

  4. 30 CFR 905.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 905.762 Section 905.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mining operations....

  5. 30 CFR 942.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 942.764 Section 942.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE TENNESSEE § 942.764 Process for designating areas unsuitable for surface coal mining... Mining Operations, shall apply to surface coal mining and reclamation operations. (b) The Secretary...

  6. 30 CFR 921.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 921.762 Section 921.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mine operations....

  7. 30 CFR 933.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 933.762 Section 933.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designation Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mining and reclamation operations....

  8. 30 CFR 939.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 939.762 Section 939.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mining and reclamation operations....

  9. 30 CFR 921.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 921.762 Section 921.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mine operations....

  10. 30 CFR 947.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 947.762 Section 947.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mining and reclamation operations....

  11. 30 CFR 942.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 942.762 Section 942.762 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS... Coal Mining Operations, shall apply to surface coal mining and reclamation operations. (b) In...

  12. 30 CFR 941.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 941.762 Section 941.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mine operations....

  13. 30 CFR 939.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 939.762 Section 939.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mining and reclamation operations....

  14. 30 CFR 947.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 947.762 Section 947.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mining and reclamation operations....

  15. 30 CFR 942.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 942.764 Section 942.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE TENNESSEE § 942.764 Process for designating areas unsuitable for surface coal mining... Mining Operations, shall apply to surface coal mining and reclamation operations. (b) The Secretary...

  16. 30 CFR 905.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 905.762 Section 905.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mining operations....

  17. 30 CFR 941.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 941.762 Section 941.762 Mineral Resources OFFICE OF SURFACE MINING... mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal Mining Operations, shall apply to surface coal mine operations....

  18. The Economic Impact of Coal Mining in New Mexico

    SciTech Connect

    Peach, James; Starbuck, C.

    2009-06-01

    The economic impact of coal mining in New Mexico is examined in this report. The analysis is based on economic multipliers derived from an input-output model of the New Mexico economy. The direct, indirect, and induced impacts of coal mining in New Mexico are presented in terms of output, value added, employment, and labor income for calendar year 2007. Tax, rental, and royalty income to the State of New Mexico are also presented. Historical coal production, reserves, and price data are also presented and discussed. The impacts of coal-fired electricity generation will be examined in a separate report.

  19. Characterization of seven United States coal regions. The development of optimal terrace pit coal mining systems

    SciTech Connect

    Wimer, R.L.; Adams, M.A.; Jurich, D.M.

    1981-02-01

    This report characterizes seven United State coal regions in the Northern Great Plains, Rocky Mountain, Interior, and Gulf Coast coal provinces. Descriptions include those of the Fort Union, Powder River, Green River, Four Corners, Lower Missouri, Illinois Basin, and Texas Gulf coal resource regions. The resource characterizations describe geologic, geographic, hydrologic, environmental and climatological conditions of each region, coal ranks and qualities, extent of reserves, reclamation requirements, and current mining activities. The report was compiled as a basis for the development of hypothetical coal mining situations for comparison of conventional and terrace pit surface mining methods, under contract to the Department of Energy, Contract No. DE-AC01-79ET10023, entitled The Development of Optimal Terrace Pit Coal Mining Systems.

  20. Model of environmental life cycle assessment for coal mining operations.

    PubMed

    Burchart-Korol, Dorota; Fugiel, Agata; Czaplicka-Kolarz, Krystyna; Turek, Marian

    2016-08-15

    This paper presents a novel approach to environmental assessment of coal mining operations, which enables assessment of the factors that are both directly and indirectly affecting the environment and are associated with the production of raw materials and energy used in processes. The primary novelty of the paper is the development of a computational environmental life cycle assessment (LCA) model for coal mining operations and the application of the model for coal mining operations in Poland. The LCA model enables the assessment of environmental indicators for all identified unit processes in hard coal mines with the life cycle approach. The proposed model enables the assessment of greenhouse gas emissions (GHGs) based on the IPCC method and the assessment of damage categories, such as human health, ecosystems and resources based on the ReCiPe method. The model enables the assessment of GHGs for hard coal mining operations in three time frames: 20, 100 and 500years. The model was used to evaluate the coal mines in Poland. It was demonstrated that the largest environmental impacts in damage categories were associated with the use of fossil fuels, methane emissions and the use of electricity, processing of wastes, heat, and steel supports. It was concluded that an environmental assessment of coal mining operations, apart from direct influence from processing waste, methane emissions and drainage water, should include the use of electricity, heat and steel, particularly for steel supports. Because the model allows the comparison of environmental impact assessment for various unit processes, it can be used for all hard coal mines, not only in Poland but also in the world. This development is an important step forward in the study of the impacts of fossil fuels on the environment with the potential to mitigate the impact of the coal industry on the environment. PMID:27092420

  1. Model of environmental life cycle assessment for coal mining operations.

    PubMed

    Burchart-Korol, Dorota; Fugiel, Agata; Czaplicka-Kolarz, Krystyna; Turek, Marian

    2016-08-15

    This paper presents a novel approach to environmental assessment of coal mining operations, which enables assessment of the factors that are both directly and indirectly affecting the environment and are associated with the production of raw materials and energy used in processes. The primary novelty of the paper is the development of a computational environmental life cycle assessment (LCA) model for coal mining operations and the application of the model for coal mining operations in Poland. The LCA model enables the assessment of environmental indicators for all identified unit processes in hard coal mines with the life cycle approach. The proposed model enables the assessment of greenhouse gas emissions (GHGs) based on the IPCC method and the assessment of damage categories, such as human health, ecosystems and resources based on the ReCiPe method. The model enables the assessment of GHGs for hard coal mining operations in three time frames: 20, 100 and 500years. The model was used to evaluate the coal mines in Poland. It was demonstrated that the largest environmental impacts in damage categories were associated with the use of fossil fuels, methane emissions and the use of electricity, processing of wastes, heat, and steel supports. It was concluded that an environmental assessment of coal mining operations, apart from direct influence from processing waste, methane emissions and drainage water, should include the use of electricity, heat and steel, particularly for steel supports. Because the model allows the comparison of environmental impact assessment for various unit processes, it can be used for all hard coal mines, not only in Poland but also in the world. This development is an important step forward in the study of the impacts of fossil fuels on the environment with the potential to mitigate the impact of the coal industry on the environment.

  2. Faults and their effect on coal mining in Illinois

    SciTech Connect

    Nelson, W.J.

    1981-01-01

    Faults are one of many types of geologic disturbances that affect coal seams. They are common in coal seams of Illinois and have considerable effects on coal mining, such as: offsetting of the coal seams, creation of grades too steep for mining equipment to follow, weakening of roof and ribs, admission of water and gas into workings, and introduction of clay and other impurities into the coal. Faults can be grouped into tectonic faults and nontectonic faults. The presence of most tectonic faults can be predicted before mining begins and their location determined by drilling, seismic exploration, and other means. The major systems of tectonic faults in Illinois that influence coal mining are located in the southern part of the state. They include the Cottage Grove, Wabash Valley, and Rend Lake Fault Systems, the Dowell Fault Zone and Centralia Fault, the Shawneetown Fault Zone, and faults in the Eagle Valley Syncline. Nontectonic faults are found in every mine in the state, although they are more troublesome in some areas than in others. Many nontectonic faults are strongly controlled by lithologic patterns in the rocks above a coal seam. The relationship of nontectonic faults to lithology often can be mapped so that the presence of the faults can be predicted a short distance ahead of the face. Mining plans should be as flexible as possible to allow adaptation to local conditions in faulted areas.

  3. Roof Rockmass Characterization in an Illinois Underground Coal Mine

    NASA Astrophysics Data System (ADS)

    Osouli, Abdolreza; Shafii, Iman

    2016-08-01

    Among all United States underground coal fields, those in Illinois have the highest rate of roof fall events due to their weak and severely moisture sensitive roof rock units. Rockmass characterization is the key initial step in designing safe and economical roof control measures in underground coal mines. In this study, a performance-based roof rockmass characterization is investigated. The geologic conditions as well as underground mine geographic specifications, roof fall analysis, mining method, utilized supplemental roof control measures, and geotechnical properties of roof rock units were considered to link the roof performance to rockmass characterization. The coal mine roof rating (CMRR) rockmass characterization method was used to evaluate the roof conditions and roof support design for an underground coal mine located in the Illinois Coal Basin. The results of several mine visit mappings, laboratory test results, and geotechnical issues and concerns are presented and discussed. The roof support designs are analyzed based on the rockmass characterization and are compared with the observed performance. This study shows that (1) CMRR index is a reasonable method for characterizing roof rockmass; (2) moisture sensitivity and bedding strengths in the horizontal direction are essential parameters for roof support design in mines with weak roof conditions; and (3) the applicability of the analysis of roof bolt system for roof support design of the studied mine is questionable.

  4. The enviornmental assessment of a contemporary coal mining system

    NASA Technical Reports Server (NTRS)

    Dutzi, E. J.; Sullivan, P. J.; Hutchinson, C. F.; Stevens, C. M.

    1980-01-01

    A contemporary underground coal mine in eastern Kentucky was assessed in order to determine potential off-site and on-site environmental impacts associated with the mining system in the given environmental setting. A 4 section, continuous room and pillor mine plan was developed for an appropriate site in eastern Kentucky. Potential environmental impacts were identified, and mitigation costs determined. The major potential environmental impacts were determined to be: acid water drainage from the mine and refuse site, uneven subsidence of the surface as a result of mining activity, and alteration of ground water aquifers in the subsidence zone. In the specific case examined, the costs of environmental impact mitigation to levels prescribed by regulations would not exceed $1/ton of coal mined, and post mining land values would not be affected.

  5. Pennsylvania's approach to underground coal mine permitting and long-term mine pool management

    SciTech Connect

    Callaghan, T.; Koricich, J.

    1999-07-01

    Pennsylvania's underground coal mine permitting process has two goals: first, to ensure that the mining and reclamation plan is designed to minimize adverse environmental impacts; and second, to minimize interference with the applicant's recovery of coal. A successful review process includes the consistent evaluation of mine site hydrology through scrutiny of key indicators of mining-induced, adverse hydrologic consequences. This allows the regulatory agency to assess the potential for mining-related impacts as well as cumulative impacts throughout the proposed mine area and adjacent area. General trends have been identified regarding quality of underground mine drainage versus coal seam mined. However, the large number of factors controlling the final mine pool chemistry along with the lack of focused research have combined to stunt the development of reliable methodologies for the prediction of postmining water quality. Absent reliable predictive methodologies, mine layout has become the best demonstrated technology for pollution prevention. Strategies include: (1) promotion of postmining inundation by down-dip development with proper location of mine openings and sizing and location of barriers; (2) restriction of mining to zones within the groundwater system where flow is relatively lethargic and time of travel is great when compared to natural mine pool amelioration time frames; and (3) mining in zones remote from groundwater discharge areas and features which may serve to short-circuit mine water to nearby existing water-supply aquifers or to the surface. This paper discusses Pennsylvania's application process for underground bituminous coal mines. It briefly outlines Pennsylvania's statutory history relating to mine discharges, touches on some of the tools permit reviewers use to evaluate the hydrology of proposed underground mining sites, and discusses the key factors that permit reviewers consider in assessing potential postmining mine pool levels.

  6. Characteristics of airborne coal mine dust and its implication to coal workers' pneumoconiosis

    SciTech Connect

    Kim, H.

    1989-01-01

    Size selective airborne dust samples were collected using 4-stage cassette impactors at nine different locations in continuous mining sections in each of five coal seams located in the Appalachian bituminous coal field. These coal seams were the Upper Freeport, Pittsburgh, Kittanning, Coalburg, and Pocahontas. Mineralogical analyses were performed by an x-ray powder diffraction photographic technique. The distributions of total and respirable dust concentrations were fit best by a log-normal distribution. The effects of the coal seam and the sampling location on dust levels were significant. The results of the particle size distribution analyses suggest that coal mine dust has a multi-modal distribution. The effects of the coal seam and the sampling locations were significant. The distributions obtained were often affected by such mine-related variables as ventilation rate, relative humidity, and the section dimensions. Nine minerals commonly found in the coal mine dust samples collected from the coal seams studied were illite, calcite, kaolinite, quartz, dolomite, siderite, gypsum, anhydrite, and pyrite in descending order of magnitude. Relative abundance of all mineral species except siderite and gypsum was coal seam specific and suggests that existence of coal seam variability of mineral content. Although mineral content was affected by sampling locations and the sections within a mine, the magnitude was small when compared with that of cal seams. Mineral content also appears to be affected by particle size, although no particular pattern was observed.

  7. Characterization and effectiveness of remining abandoned coal mines in Pennsylvania

    SciTech Connect

    Hawkins, J.W.

    1995-12-31

    Under an approved remining program, mine operators can remine abandoned coal mines without assuming legal responsibility for treatment of the previously degraded water, as long as the discharging waters are not further degraded and other regulatory requirements are satisfied. A US Bureau of Mines review of 105 remining permits in Pennsylvania indicates that remining results in substantial reclamation of abandoned mine lands, utilization of significant quantities of coal, and reduction of contaminant loads (acidity and iron) from degraded mine drainage discharges. Normality tests performed on the water quality and flow data indicate generally nonnormal distributions and extreme right-skewness tending toward lower values. The water quality of underground coal mines was observed to be more highly degraded in terms of acidity, iron, and sulfate than that of surface coal mines. The optimum baseline sampling scenario is 12 months in duration at a frequency of one sample per month. Analysis of water quality and flow rates before and after remining indicates that a majority of the mines exhibited either no change or a significant decrease in pollution rate because of remining. The discharge flow rate was the dominant controlling factor when the post-remining contaminant load was significantly better or worse than the baseline (pre-mining) load.

  8. Geologic considerations in underground coal mining system design

    NASA Technical Reports Server (NTRS)

    Camilli, F. A.; Maynard, D. P.; Mangolds, A.; Harris, J.

    1981-01-01

    Geologic characteristics of coal resources which may impact new extraction technologies are identified and described to aid system designers and planners in their task of designing advanced coal extraction systems for the central Appalachian region. These geologic conditions are then organized into a matrix identified as the baseline mine concept. A sample region, eastern Kentucy is analyzed using both the developed baseline mine concept and the traditional geologic investigative approach.

  9. History of transcontinental railroads and coal mining on the Northern Plains to 1920

    SciTech Connect

    Bryans, W.S.

    1987-01-01

    This history examines the symbiotic relationship between three transcontinental railroads-the Union Pacific, Northern Pacific, and Great Northern-and coal mining in Montana, North Dakota, and Wyoming through 1920. Throughout their dual existence, American railroads and the coal industry enjoyed a mutually beneficial association. On the Northern Plains, however, this partnership assumed new dimensions. There, the coal and rails exerted unique influences upon one another. The location of deposits determined many of the transcontinentals' early decisions, especially route selection. The native fuel also was used to promote settlement on railroad lands. Two of the roads, the Union Pacific and Northern Pacific, held land grants containing valuable deposits. The Great Northern, having no such subsidy, acquired coal lands in northern Montana. On these properties, the three railroads pioneered the region's commercial coal mining industry. Eventually, each formed subsidiaries to direct their coal operations. While much of their production supplied steam locomotives, some was sold to the public. Furthermore, the policies of the Northern Pacific and Great Northern especially enabled their coal to stimulate non-railroad enterprises. In addition, all three provided the transportation which made exploitation by others economically feasible.

  10. Geologic considerations in underground coal mining system design

    SciTech Connect

    Camilli, F.A.; Maynard, D.P.; Mangolds, A.; Harris, J.

    1981-10-01

    Geologic characteristics of coal resources which may impact new extraction technologies are identified and described to aid system designers and planners in their task of designing advanced coal extraction systems for the central Appalachian region. These geologic conditions are then organized into a matrix identified as the baseline mine concept. A sample region, eastern Kentucky, is next analyzed, using both the new baseline mine concept and traditional geologic investigative approach. The baseline mine concept presented is intended as a framework, providing a consistent basis for further analyses to be subsequently conducted in other geographic regions. The baseline mine concept is intended as a tool to give system designers a more realistic feel of the mine environment and will hopefully lead to acceptable alternatives for advanced coal extraction system.

  11. Capture and Use of Coal Mine Ventilation Air Methane

    SciTech Connect

    Deborah Kosmack

    2008-10-31

    CONSOL Energy Inc., in conjunction with MEGTEC Systems, Inc., and the U.S. Department of Energy with the U.S. Environmental Protection Agency, designed, built, and operated a commercial-size thermal flow reversal reactor (TFRR) to evaluate its suitability to oxidize coal mine ventilation air methane (VAM). Coal mining, and particularly coal mine ventilation air, is a major source of anthropogenic methane emissions, a greenhouse gas. Ventilation air volumes are large and the concentration of methane in the ventilation air is low; thus making it difficult to use or abate these emissions. This test program was conducted with simulated coal mine VAM in advance of deploying the technology on active coal mine ventilation fans. The demonstration project team installed and operated a 30,000 cfm MEGTEC VOCSIDIZER oxidation system on an inactive coal mine in West Liberty, WV. The performance of the unit was monitored and evaluated during months of unmanned operation at mostly constant conditions. The operating and maintenance history and how it impacts the implementation of the technology on mine fans were investigated. Emission tests showed very low levels of all criteria pollutants at the stack. Parametric studies showed that the equipment can successfully operate at the design specification limits. The results verified the ability of the TFRR to oxidize {ge}95% of the low and variable concentration of methane in the ventilation air. This technology provides new opportunities to reduce greenhouse gas emissions by the reduction of methane emissions from coal mine ventilation air. A large commercial-size installation (180,000 cfm) on a single typical mine ventilation bleeder fan would reduce methane emissions by 11,000 to 22,100 short tons per year (the equivalent of 183,000 to 366,000 metric tonnes carbon dioxide).

  12. 75 FR 20918 - High-Voltage Continuous Mining Machine Standard for Underground Coal Mines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-22

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF LABOR Mine Safety and Health Administration 30 CFR Parts 18 and 75 RIN 1219-AB34 High-Voltage Continuous Mining Machine Standard for Underground Coal Mines Correction In rule document 2010-7309 beginning on page...

  13. Ventilation of mines developed by the combined method of coal mining

    NASA Astrophysics Data System (ADS)

    Senkus, Val V.; Ermakov, A. Yu; Senkus, V. V.

    2016-10-01

    The paper considers the features of ventilation of mines which are developed by the combined method of coal mining. It also provides recommendations for placing the flank and central ventilation holes while mining flat and steep seams from open pit sides, as well as anticlinal and synclinal deposits.

  14. 20 CFR 718.302 - Relationship of pneumoconiosis to coal mine employment.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 20 Employees' Benefits 4 2012-04-01 2012-04-01 false Relationship of pneumoconiosis to coal mine... OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED STANDARDS FOR DETERMINING COAL... Determinations § 718.302 Relationship of pneumoconiosis to coal mine employment. If a miner who is suffering...

  15. 42 CFR 37.100 - Coal mine operator plan for medical examinations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 1 2014-10-01 2014-10-01 false Coal mine operator plan for medical examinations... MEDICAL CARE AND EXAMINATIONS SPECIFICATIONS FOR MEDICAL EXAMINATIONS OF COAL MINERS General Requirements § 37.100 Coal mine operator plan for medical examinations. (a) Each coal mine operator must submit...

  16. 20 CFR 718.302 - Relationship of pneumoconiosis to coal mine employment.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 3 2011-04-01 2011-04-01 false Relationship of pneumoconiosis to coal mine... OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED STANDARDS FOR DETERMINING COAL... Determinations § 718.302 Relationship of pneumoconiosis to coal mine employment. If a miner who is suffering...

  17. 20 CFR 718.302 - Relationship of pneumoconiosis to coal mine employment.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false Relationship of pneumoconiosis to coal mine... LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED STANDARDS FOR DETERMINING COAL MINERS... § 718.302 Relationship of pneumoconiosis to coal mine employment. If a miner who is suffering...

  18. 20 CFR 718.302 - Relationship of pneumoconiosis to coal mine employment.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 4 2013-04-01 2013-04-01 false Relationship of pneumoconiosis to coal mine... OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED STANDARDS FOR DETERMINING COAL... Determinations § 718.302 Relationship of pneumoconiosis to coal mine employment. If a miner who is suffering...

  19. 20 CFR 718.302 - Relationship of pneumoconiosis to coal mine employment.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 20 Employees' Benefits 4 2014-04-01 2014-04-01 false Relationship of pneumoconiosis to coal mine... OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED STANDARDS FOR DETERMINING COAL... Determinations § 718.302 Relationship of pneumoconiosis to coal mine employment. If a miner who is suffering...

  20. 30 CFR 785.12 - Special bituminous surface coal mining and reclamation operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Special bituminous surface coal mining and... ENFORCEMENT, DEPARTMENT OF THE INTERIOR SURFACE COAL MINING AND RECLAMATION OPERATIONS PERMITS AND COAL....12 Special bituminous surface coal mining and reclamation operations. (a) This section applies to...

  1. 30 CFR 825.2 - Special bituminous coal mines in Wyoming.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Special bituminous coal mines in Wyoming. 825.2 Section 825.2 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE... BITUMINOUS COAL MINES IN WYOMING § 825.2 Special bituminous coal mines in Wyoming. Special bituminous...

  2. 30 CFR 825.2 - Special bituminous coal mines in Wyoming.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Special bituminous coal mines in Wyoming. 825.2 Section 825.2 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE... BITUMINOUS COAL MINES IN WYOMING § 825.2 Special bituminous coal mines in Wyoming. Special bituminous...

  3. 30 CFR 825.2 - Special bituminous coal mines in Wyoming.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Special bituminous coal mines in Wyoming. 825.2 Section 825.2 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE... BITUMINOUS COAL MINES IN WYOMING § 825.2 Special bituminous coal mines in Wyoming. Special bituminous...

  4. 30 CFR 825.2 - Special bituminous coal mines in Wyoming.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Special bituminous coal mines in Wyoming. 825.2 Section 825.2 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE... BITUMINOUS COAL MINES IN WYOMING § 825.2 Special bituminous coal mines in Wyoming. Special bituminous...

  5. 30 CFR 825.2 - Special bituminous coal mines in Wyoming.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Special bituminous coal mines in Wyoming. 825.2 Section 825.2 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE... BITUMINOUS COAL MINES IN WYOMING § 825.2 Special bituminous coal mines in Wyoming. Special bituminous...

  6. 30 CFR 939.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... coal mining and reclamation operations. 939.800 Section 939.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE RHODE ISLAND § 939.800 General requirements for bonding of surface coal mining... Mining and Reclamation Operations Under Regulatory Programs, shall apply to all surface coal mining...

  7. 30 CFR 762.15 - Exploration on land designated as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 762.15 Section 762.15 Mineral Resources OFFICE OF SURFACE MINING... AREAS AS UNSUITABLE FOR SURFACE COAL MINING OPERATIONS § 762.15 Exploration on land designated as unsuitable for surface coal mining operations. Designation of any area as unsuitable for all or certain...

  8. 30 CFR 921.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... coal mining and reclamation operations. 921.800 Section 921.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE MASSACHUSETTS § 921.800 General requirements for bonding of surface coal mining... Mining and Reclamation Operations Under Regulatory Programs, shall apply to all surface coal mining...

  9. 30 CFR 762.13 - Land exempt from designation as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 762.13 Section 762.13 Mineral Resources OFFICE OF SURFACE MINING... AREAS AS UNSUITABLE FOR SURFACE COAL MINING OPERATIONS § 762.13 Land exempt from designation as unsuitable for surface coal mining operations. The requirements of this part do not apply to— (a) Lands...

  10. 30 CFR 903.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 903.764 Section 903.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE ARIZONA § 903.764 Process for designating areas unsuitable for surface coal mining... coal mining operations beginning June 24, 1996, one year after the effective date of this program....

  11. 30 CFR 933.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... coal mining and reclamation operations. 933.800 Section 933.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE NORTH CAROLINA § 933.800 General requirements for bonding of surface coal mining... Mining and Reclamation Operations Under Regulatory Programs, shall apply to all surface coal mining...

  12. 30 CFR 762.15 - Exploration on land designated as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 762.15 Section 762.15 Mineral Resources OFFICE OF SURFACE MINING... AREAS AS UNSUITABLE FOR SURFACE COAL MINING OPERATIONS § 762.15 Exploration on land designated as unsuitable for surface coal mining operations. Designation of any area as unsuitable for all or certain...

  13. 30 CFR 933.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 933.764 Section 933.764 Mineral Resources OFFICE OF SURFACE MINING... Coal Mining Operations, pertaining to petitioning, initial processing, hearing requirements, decisions... surface coal mining and reclamation operations beginning one year after the effective date of this program....

  14. 30 CFR 947.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 947.764 Section 947.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE WASHINGTON § 947.764 Process for designating areas unsuitable for surface coal mining... coal mining and reclamation operations. (b) The Secretary shall notify the Washington Department...

  15. 30 CFR 921.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... coal mining and reclamation operations. 921.800 Section 921.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE MASSACHUSETTS § 921.800 General requirements for bonding of surface coal mining... Mining and Reclamation Operations Under Regulatory Programs, shall apply to all surface coal mining...

  16. 30 CFR 762.13 - Land exempt from designation as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 762.13 Section 762.13 Mineral Resources OFFICE OF SURFACE MINING... AREAS AS UNSUITABLE FOR SURFACE COAL MINING OPERATIONS § 762.13 Land exempt from designation as unsuitable for surface coal mining operations. The requirements of this part do not apply to— (a) Lands...

  17. 30 CFR 941.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... coal mining and reclamation operations. 941.800 Section 941.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE SOUTH DAKOTA § 941.800 General requirements for bonding of surface coal mining... Mining and Reclamation Operations Under Regulatory Programs, shall apply to all surface coal mining...

  18. 30 CFR 939.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... coal mining and reclamation operations. 939.800 Section 939.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE RHODE ISLAND § 939.800 General requirements for bonding of surface coal mining... Mining and Reclamation Operations Under Regulatory Programs, shall apply to all surface coal mining...

  19. 30 CFR 941.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... coal mining and reclamation operations. 941.800 Section 941.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE SOUTH DAKOTA § 941.800 General requirements for bonding of surface coal mining... Mining and Reclamation Operations Under Regulatory Programs, shall apply to all surface coal mining...

  20. 30 CFR 905.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 905.764 Section 905.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE CALIFORNIA § 905.764 Process for designating areas unsuitable for surface coal mining... coal mining operations beginning one year after the effective date of this program....

  1. 30 CFR 947.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 947.764 Section 947.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE WASHINGTON § 947.764 Process for designating areas unsuitable for surface coal mining... coal mining and reclamation operations. (b) The Secretary shall notify the Washington Department...

  2. 30 CFR 933.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... coal mining and reclamation operations. 933.800 Section 933.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE NORTH CAROLINA § 933.800 General requirements for bonding of surface coal mining... Mining and Reclamation Operations Under Regulatory Programs, shall apply to all surface coal mining...

  3. 30 CFR 933.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 933.764 Section 933.764 Mineral Resources OFFICE OF SURFACE MINING... Coal Mining Operations, pertaining to petitioning, initial processing, hearing requirements, decisions... surface coal mining and reclamation operations beginning one year after the effective date of this program....

  4. Safe mine waste disposal, Appalachian coal province (1984)

    SciTech Connect

    Maberry, J.O.

    1989-01-01

    Listed are maps developed under the Safe Mine-Waste Disposal program of the U.S. Geological Survey. Maps show recent or old landslides, rockfalls and other areas susceptible to sliding. Other features include strip mines classified as to type and degree of reclamation, gravel pits, quarries and other man-made features that affect slope stability in vicinity of coal-mining activities.

  5. A study of leakage rates through mine seals in underground coal mines

    PubMed Central

    Schatzel, Steven J.; Krog, Robert B.; Mazzella, Andrew; Hollerich, Cynthia; Rubinstein, Elaine

    2015-01-01

    The National Institute for Occupational Safety and Health conducted a study on leakage rates through underground coal mine seals. Leakage rates of coal bed gas into active workings have not been well established. New seal construction standards have exacerbated the knowledge gap in our understanding of how well these seals isolate active workings near a seal line. At a western US underground coal mine, we determined seal leakage rates ranged from about 0 to 0.036 m3/s for seven 340 kPa seals. The seal leakage rate varied in essentially a linear manner with variations in head pressure at the mine seals. PMID:26322119

  6. 77 FR 58170 - Proposed Renewal of Existing Information Collection; Fire Protection (Underground Coal Mines)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-19

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Mine... (Underground Coal Mines) AGENCY: Mine Safety and Health Administration, Labor. ACTION: Request for public... assessed. Currently, the Mine Safety and Health Administration is soliciting comments concerning...

  7. Acid mine drainage and subsidence: effects of increased coal utilization.

    PubMed Central

    Hill, R D; Bates, E R

    1979-01-01

    The increases above 1975 levels for acid mine drainage and subsidence for the years 1985 and 2000 based on projections of current mining trends and the National Energy Plan are presented. No increases are projected for acid mine drainage from surface mines or waste since enforcement under present laws should control this problem. The increase in acid mine drainage from underground mines is projected to be 16 percent by 1985 and 10 percent by 2000. The smaller increase in 2000 over 1985 reflects the impact of the PL 95-87 abandoned mine program. Mine subsidence is projected to increase by 34 and 115 percent respectively for 1985 and 2000. This estimate assumes that subsidence will parallel the rate of underground coal production and that no new subsidence control measures are adopted to mitigate subsidence occurrence. PMID:540617

  8. Venezuela to develop second largest coal mine in South America

    SciTech Connect

    Ridley, R.S.

    1982-09-01

    Venezuela has plans to develop its coal resources in the state of Zulia. The Mino Paso Diablo project includes not only the coal mine but a steel complex and thermal power station. Design by Fluor is expected to be complete by mid-1983; first production is scheduled for 1986. Full production of 6 million tonnes/year will not be reached until the mid-1990s. The entire output is planned for domestic industrial use. At full production the mine will be the second largest coal mine in South America. The coal, which is similar to that of El Cerrejon, Columbia, 250 km away, has a calorific value of 13000 Btu/lb, ash 3%, sulphur 0.5% and free swelling index 5.

  9. Microbial methane formation from hard coal and timber in an abandoned coal mine

    SciTech Connect

    Kruger, M.; Beckmann, S.; Engelen, B.; Thielemann, T.; Cramer, B.; Schippers, A.; Cypionka, H.

    2008-07-01

    About 7% of the global annual methane emissions originate from coal mining. Also, mine gas has come into focus of the power industry and is being used increasingly for heat and power production. In many coal deposits worldwide, stable carbon and hydrogen isotopic signatures of methane indicate a mixed thermogenic and biogenic origin. In this study, we have measured in an abandoned coal mine methane fluxes and isotopic signatures of methane and carbon dioxide, and collected samples for microbiological and phylogenetic investigations. Mine timber and hard coal showed an in-situ production of methane with isotopic signatures similar to those of the methane in the mine atmosphere. Enrichment cultures amended with mine timber or hard coal as sole carbon sources formed methane over a period of nine months. Predominantly, acetoclastic methanogenesis was stimulated in enrichments containing acetate or hydrogen/carbon dioxide. Molecular techniques revealed that the archaeal community in enrichment cultures and unamended samples was dominated by members of the Methanosarcinales. The combined geochemical and microbiological investigations identify microbial methanogenesis as a recent source of methane in abandoned coal mines.

  10. Restoration of abandoned mine lands through cooperative coal resource evaluations

    SciTech Connect

    Hoskins, D.M.; Smith, M.

    1996-12-31

    The public reclamation cost of reclaiming all of Pennsylvania`s abandoned mine lands is estimated at $15 billion. Drainage from abandoned mines poses another $5 billion water pollution clean-up problem. Although it is unlikely that public reclamation alone could ever tackle these problems, much can be done to alleviate the nuisances through the remining of previously mined areas to recover remaining reserves, restore the land and improve water quality in the same process. Remining of priority areas is encouraged through a new Pennsylvania policy which provides incentives to mining companies. One incentive, initiated under Pennsylvania`s comprehensive mine reclamation strategy, is to identify and geologically map reminable coal resources in selected watersheds, and then to expedite mine permitting in these watersheds. At present, two such priority watersheds, Little Toby Creek in Elk County and Tangascootak Creek in Clinton County, are the focus of geologic map compilation based on recent quadrangle mapping, or new, directed, geologic mapping, including new research core drilling to establish the geologic stratigraphic framework. In order to maximize environmental benefits the comprehensive mine reclamation strategy identifies watersheds which are affected by acid mine drainage (AMD), but that are reasonably capable of restoration, if sufficient coal reserves remain. Pennsylvania`s geochemical quality database of rock overburden, in combination with detailed coal resource mapping by the Pennsylvania Geological Survey, and the cooperation of coal companies and leaseholders, is being used by the Department of Environmental Protection (DEP) to identify and design remining projects which will not only allow the recovery of coal resources, but will also improve the water quality through a variety of innovative mining techniques.

  11. Utilization of coal ash/coal combustion products for mine reclamation

    SciTech Connect

    Dolence, R.C.; Giovannitti, E.

    1997-09-01

    Society`s demand for an inexpensive fuel, combined with ignorance of the long term impacts, has left numerous scars on the Pennsylvania landscape. There are over 250,000 acres of abandoned surface mines with dangerous highwalls and water filled pits. About 2,400 miles of streams do not meet water quality standards because of drainage from abandoned mines. There are uncounted households without an adequate water supply due to past mining practices. Mine fires and mine subsidence plague many Pennsylvania communities. The estimated cost to reclaim these past scars is over $15 billion. The beneficial use of coal ash in Pennsylvania for mine reclamation and mine drainage pollution abatement projects increased during the past ten years. The increase is primarily due to procedural and regulatory changes by the Department of Environmental Protection (DEP). Prior to 1986, DEP required a mining permit and a separate waste disposal permit for the use of coal ash in backfilling and reclaiming a surface mine site. In order to eliminate the dual permitting requirements and promote mine reclamation, procedural changes now allow a single permit which authorize both mining and the use of coal ash in reclaiming active and abandoned pits. The actual ash placement, however, must be conducted in accordance with the technical specifications in the solid waste regulations.

  12. Research of land resources comprehensive utilization of coal mining in plain area based on GIS: case of Panyi Coal Mine of Huainan Mining Group Corp.

    NASA Astrophysics Data System (ADS)

    Dai, Chunxiao; Wang, Songhui; Sun, Dian; Chen, Dong

    2007-06-01

    The result of land use in coalfield is important to sustainable development in resourceful city. For surface morphology being changed by subsidence, the mining subsidence becomes the main problem to land use with the negative influence of ecological environment, production and steadily develop in coal mining areas. Taking Panyi Coal Mine of Huainan Mining Group Corp as an example, this paper predicted and simulated the mining subsidence in Matlab environment on the basis of the probability integral method. The change of land use types of early term, medium term and long term was analyzed in accordance with the results of mining subsidence prediction with GIS as a spatial data management and spatial analysis tool. The result of analysis showed that 80% area in Panyi Coal Mine be affected by mining subsidence and 52km2 perennial waterlogged area was gradually formed. The farmland ecosystem was gradually turned into wetland ecosystem in most study area. According to the economic and social development and natural conditions of mining area, calculating the ecological environment, production and people's livelihood, this paper supplied the plan for comprehensive utilization of land resource. In this plan, intervention measures be taken during the coal mining and the mining subsidence formation and development, and this method can solve the problems of Land use at the relative low cost.

  13. Underground coal mine instrumentation and test

    NASA Technical Reports Server (NTRS)

    Burchill, R. F.; Waldron, W. D.

    1976-01-01

    The need to evaluate mechanical performance of mine tools and to obtain test performance data from candidate systems dictate that an engineering data recording system be built. Because of the wide range of test parameters which would be evaluated, a general purpose data gathering system was designed and assembled to permit maximum versatility. A primary objective of this program was to provide a specific operating evaluation of a longwall mining machine vibration response under normal operating conditions. A number of mines were visited and a candidate for test evaluation was selected, based upon management cooperation, machine suitability, and mine conditions. Actual mine testing took place in a West Virginia mine.

  14. Preliminary report on LLNL mine seismicity deployment at the Twentymile Coal Mine

    SciTech Connect

    Walter, W.R.; Hunter, S.L.; Glenn, L.A.

    1996-01-01

    This report summarizes the preliminary results of a just completed experiment at the Twentymile Coal Mine, operated by the Cyprus Amax Coal Company near Oak Creek, CO. The purpose of the experiment was to obtain local and regional seismic data from roof caves associated with long-wall mining activities and to use this data to help determine the effectiveness with which these events can be discriminated from underground nuclear explosions under a future Comprehensive Test Ban Treaty.

  15. Simulation Of Mine Water Inflow: Case Study Of The Štavalj Coal Mine (Southwestern Serbia)

    NASA Astrophysics Data System (ADS)

    Miladinović, Branko; Vakanjac, Vesna Ristić; Bukumirović, Dragomir; Dragišić, Veselin; Vakanjac, Boris

    2015-12-01

    The inflow of mine water to mining operations is often caused by random events such as precipitation. Consequently, the mine water inflow regime can be defined as a function of random events applying the theory of random processes. Regression models of the multiple linear correlation type have been used to simulate the inflow of mine water into mining operations, produce short-range predictions and facilitate rapid response inside the mine. The significance of such models lies in the ability to simulate and predict the consequences (mine water inflow), caused by events of a random nature (meteorological parameters: precipitation and air temperature). The presented prognostic models have been calibrated for mine water inflow to the Štavalj Coal Mine in southwestern Serbia. Mathematical dependencies were defined based on daily mine water inflow rates recorded during the period from 2003 to 2011, which can be used to generate short-range (1-7 day) predictions of mean daily mine water inflow rates to the Štavalj Coal Mine. A strong correlation (coefficient of correlation r = 0.93, Sig. = 0.00) was derived for the one-day forecast. The coefficients of correlation for predictions of mean daily mine water inflow rates related to time periods of two, three...seven days gradually declined to 0.63 (7-day mean daily inflow rate).

  16. Automated strip mine and reclamation mapping from ERTS. [Ohio coal

    NASA Technical Reports Server (NTRS)

    Pettyjohn, W. A.; Rogers, R. H.; Reed, L. E.

    1974-01-01

    In response to the urgent need for a faster and more economical means of generating strip mine and reclamation maps, a study was conducted to evaluate the suitability of using ERTS computer compatible tape for automatic mapping. The procedure uses computer target spectral recognition techniques as a basis for classification. The area encompassed by this investigation includes five counties in eastern Ohio that comprise nearly 7,500 square kilometers (3,000 square miles). The counties have been disrupted by coal mining since the early 1800's, and strip mining has been practiced in all of them. The environmental effects of strip mining are also discussed.

  17. Case report: coal mine subsidence in Farmington, West Virginia

    SciTech Connect

    Bruhn, R.W.

    1985-01-01

    The cause of the ground movements that occurred in the town of Farmington, West Virginia in Oct. 1975 were investigated. The Farmington incident represents an extreme case of mine subsidence in the northern Appalachian coal field. It was found that subsidence can take place above mines that are several hundred feet below the ground surface and can extend over tens of acres; it can sometimes be mistaken for other forms of ground movement, e.g., landslides; its occurrence may be delayed until many years after completion of mining; and it can take place even where accepted mining practices have been followed.

  18. Pyrite problems in the coal mining industry. Information circular/1994

    SciTech Connect

    Miron, Y.

    1993-09-01

    The presence of pyrite (FeS2) in coal can cause or contribute to several problems for the coal mining industry. These problems, which include spontaneous combustion, roof falls, floor heave, and accidental explosions in coal surface mining when ammonium nitrate-fuel oil (ANFO) explosives are used, result from pyrite oxidation. Pyrite oxidizes exothermically in the presence of air and moisture to form a large variety of products, including hydrated ferrous and ferric sulfates, and sulfuric acid. Some of the products are reactive chemicals and strong oxidants. The volume of many of these oxidation products exceeds the original volume of the pyrite; as a result, the adjacent coal disintegrates and its surface increases, rendering it more susceptible to oxidation. The heat from pyrite oxidation raises the temperature of the adjacent coal, accelerating the oxidation and self-heating rates of the coal. Additional hazards are fires or explosions caused by the frictional ignition of methane when the pyrite in the coal is struck by a cutting bit during mining.

  19. Exploration drilling for pre-mining gas drainage in coal mines

    NASA Astrophysics Data System (ADS)

    Shubina, E. A.; Brylin, V. I.; Lukyanov, V. G.; Korotchenko, T. V.

    2015-02-01

    High natural gas content in coal seams and low gas drainage efficiency are the basic issues to be addressed in order to ensure coal mining safety. A great number of wells being drilled within various gas drainage techniques significantly increase the costs of coal mining and do not reduce the gas content levels within the coal beds up to the required parameters in a short period of time. The integrated approach toward exploration well spacing applied at the stage of project development could make it possible to consider coal seam data to provide more effective gas drainage not only ahead of mining but also during further gas content reduction and commercial production of methane. The comparative analysis of a closely spaced grid of exploration program compiled in accordance with the recommendations on applying mineral reserves classification and inferred resources of coal and shale coal deposits and currently effective stimulation radius proves the necessity and possibility to consider exploration well data for gas drainage. Pre-mining gas drainage could ensure the safety of mining operations.

  20. Influence of Geological Structure on Coal and Gas Outburst Occurrences in Turkish Underground Coal Mines

    NASA Astrophysics Data System (ADS)

    Esen, Olgun; Özer, Samet Can; Fişne, Abdullah

    2015-04-01

    Coal and gas outbursts are sudden and violent releases of gas and in company with coal that result from a complex function of geology, stress regime with gas pressure and gas content of the coal seam. The phenomena is referred to as instantaneous outbursts and have occurred in virtually all the major coal producing countries and have been the cause of major disasters in the world mining industry. All structures from faults to joints and cleats may supply gas or lead to it draining away. Most geological structures influence the way in which gas can drain within coal seams. From among all the geological factors two groups can be distinguished: parameters characterising directly the occurrence and geometry of the coal seams; parameters characterising the tectonic disturbances of the coal seams and neighbouring rocks. Also dykes may act as gas barriers. When the production of the coal seam is advanced in mine working areas, these barriers are failed mostly in the weak and mylonitized zones. Geology also plays a very important role in the outburst process. Coal seams of complex geological structure including faults, folds, and fractured rocks are liable to outbursts if coal seams and neighbouring rocks have high gas content level. The purpose of the study is to enlighten the coal industry in Turkey to improving mine safety in underground coal production and decrease of coal and gas outburst events due to increasing depth of mining process. In Turkey; the years between 1969 and 2013, the number of 90 coal and gas outbursts took place in Zonguldak Hard Coal Basin in both Kozlu and Karadon Collieries. In this study the liability to coal and gas outburst of the coal seams are investigated by measuring the strength of coal and the rock pressure. The correlation between these measurements and the event locations shows that the geological structures resulted in 52 events out of 90 events; 19 events close to the fault zones, 25 events thorough the fault zones and 8 events in

  1. Comprehensive impacts of permit decisions to conduct surface coal mining operations under Tennessee Federal Program

    SciTech Connect

    Not Available

    1985-03-01

    Representative model mines were developed to evaluate the range of impacts associated with the issuance of coal mining permits under the Tennessee Federal Program. For the purpose of this analysis, the Tennessee bituminous coal field was divided into five regions: Cumberland Block, Wartburg Basin, Northern Cumberland Plateau, Southern Cumberland Plateau, and Walden Ridge South. For each of the five regions, three to five model mines were developed to represent the range of mining activities including underground mines, mountaintop removal mines, contour mines, auger mines, and area mines. A model preparation plant and tipple facility were developed to characterize the impacts associated with the storing, processing, and loading of coal in the five regions.

  2. Environmental impact assessment of selenium from coal mine spoils. Quarterly report

    SciTech Connect

    Atalay, A.

    1990-10-01

    The development of environmental impact assessment of selenium from coal mine spoils will provide a useful guideline to predict the environmental impact of Se from abandoned coal mine operations. Information obtained from such a study can be applied in areas where coal mining has not yet begun in order to predict and identify the geochemistry of rocks, soils, surface waters and groundwaters likely to be disturbed by coal mining operation.

  3. Population Cancer Risks Associated with Coal Mining: A Systematic Review

    PubMed Central

    Jenkins, Wiley D.; Christian, W. Jay; Mueller, Georgia; Robbins, K. Thomas

    2013-01-01

    Background Coal is produced across 25 states and provides 42% of US energy. With production expected to increase 7.6% by 2035, proximate populations remain at risk of exposure to carcinogenic coal products such as silica dust and organic compounds. It is unclear if population exposure is associated with increased risk, or even which cancers have been studied in this regard. Methods We performed a systematic review of English-language manuscripts published since 1980 to determine if coal mining exposure was associated with increased cancer risk (incidence and mortality). Results Of 34 studies identified, 27 studied coal mining as an occupational exposure (coal miner cohort or as a retrospective risk factor) but only seven explored health effects in surrounding populations. Overall, risk assessments were reported for 20 cancer site categories, but their results and frequency varied considerably. Incidence and mortality risk assessments were: negative (no increase) for 12 sites; positive for 1 site; and discordant for 7 sites (e.g. lung, gastric). However, 10 sites had only a single study reporting incidence risk (4 sites had none), and 11 sites had only a single study reporting mortality risk (2 sites had none). The ecological study data were particularly meager, reporting assessments for only 9 sites. While mortality assessments were reported for each, 6 had only a single report and only 2 sites had reported incidence assessments. Conclusions The reported assessments are too meager, and at times contradictory, to make definitive conclusions about population cancer risk due to coal mining. However, the preponderance of this and other data support many of Hill’s criteria for causation. The paucity of data regarding population exposure and risk, the widespread geographical extent of coal mining activity, and the continuing importance of coal for US energy, warrant further studies of population exposure and risk. PMID:23977014

  4. Siting of prison complex above abandoned underground coal mine

    SciTech Connect

    Marino, G.G.

    1998-10-01

    This paper discusses in detail the process undertaken to mitigate the effects of any future mine subsidence on prison structures proposed above old abandoned underground workings. The site for a proposed prison complex purchased by the state of Indiana was located in west-central Indiana and was undermined by an old abandoned room and pillar mine. Based on a study of the mine map and subsurface verification of the extent of mining it was determined that all prison buildings and important structures could be placed above solid coal to the north. However, one masonry building was located within the potential draw zone of mine works that still contained significant mine voids. Based on empirical data the subsidence potential was estimated and the building was designed accordingly to be mine subsidence resistant. It was decided that a phase 2 prison complex should be constructed adjacent to and just south of the phase 1 complex. This complex would be directly above the underground workings. Subsequently, an extensive subsurface investigation program was undertaken to (1) ascertain whether or not mine areas where buildings would be located were already collapsed and thus only nominal, if any, subsidence could occur in the future and (2) verify the presence of solid coal areas within the mine as indicated on the mine map. Based on all the site information gathered subsidence profiles were developed from an empirical database of subsidence events in the Illinois coal basin. As a result of this work many structures on the site required no or nominal subsidence considerations. However, for others that could be affected potentially by future subsidence movement preliminary subsidence resistant designs were completed using the expected level of potential subsidence movement.

  5. 30 CFR 75.1107-11 - Extinguishing agents; requirements on mining equipment employed in low coal.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... equipment employed in low coal. 75.1107-11 Section 75.1107-11 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Fire Protection Fire Suppression Devices and Fire-Resistant Hydraulic Fluids on Underground...

  6. 76 FR 12648 - Lowering Miners' Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-08

    ...' Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors AGENCY: Mine Safety and... Continuous Personal Dust Monitors. The proposed rule would improve health protections for coal miners by... Occupational Exposure to Respirable Coal Mine Dust, the National Institute for Occupational Safety and...

  7. 76 FR 10070 - Division of Coal Mine Workers' Compensation; Proposed Extension of Existing Collection; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-23

    ... of Workers' Compensation Programs Division of Coal Mine Workers' Compensation; Proposed Extension of... Quality Rereading (CM-933b), Medical History and Examination for Coal Mine Workers' Pneumoconiosis (CM-988... interpretation of x-rays. When a miner applies for benefits, the Division of Coal Mine Workers'...

  8. 26 CFR 1.187-1 - Amortization of certain coal mine safety equipment.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 3 2010-04-01 2010-04-01 false Amortization of certain coal mine safety... (continued) § 1.187-1 Amortization of certain coal mine safety equipment. (a) Allowance of deduction—(1) In... respect to the amortization of the adjusted basis (for determining gain) of any certified coal mine...

  9. 29 CFR 570.53 - Coal-mine occupations (Order 3).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Coal-mine occupations (Order 3). 570.53 Section 570.53... § 570.53 Coal-mine occupations (Order 3). (a) Finding and declaration of fact. All occupations in or about any coal mine, except the occupation of slate or other refuse picking at a picking table...

  10. 29 CFR 570.60 - Occupations in connection with mining, other than coal (Order 9).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Occupations in connection with mining, other than coal... Health or Well-Being § 570.60 Occupations in connection with mining, other than coal (Order 9). (a) Finding and declaration of fact. All occupations in connection with mining, other than coal,...

  11. 30 CFR 761.11 - Areas where surface coal mining operations are prohibited or limited.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Areas where surface coal mining operations are....11 Areas where surface coal mining operations are prohibited or limited. You may not conduct surface coal mining operations on the following lands unless you either have valid existing rights,...

  12. 30 CFR 761.11 - Areas where surface coal mining operations are prohibited or limited.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas where surface coal mining operations are....11 Areas where surface coal mining operations are prohibited or limited. You may not conduct surface coal mining operations on the following lands unless you either have valid existing rights,...

  13. 26 CFR 1.187-1 - Amortization of certain coal mine safety equipment.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 3 2012-04-01 2012-04-01 false Amortization of certain coal mine safety... Corporations (continued) § 1.187-1 Amortization of certain coal mine safety equipment. (a) Allowance of... coal mine safety equipment (as defined in § 1.187-2), based on a period of 60 months. Such...

  14. 26 CFR 1.187-1 - Amortization of certain coal mine safety equipment.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 3 2011-04-01 2011-04-01 false Amortization of certain coal mine safety... Corporations (continued) § 1.187-1 Amortization of certain coal mine safety equipment. (a) Allowance of... coal mine safety equipment (as defined in § 1.187-2), based on a period of 60 months. Such...

  15. 29 CFR 570.53 - Coal-mine occupations (Order 3).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Coal-mine occupations (Order 3). 570.53 Section 570.53... § 570.53 Coal-mine occupations (Order 3). (a) Finding and declaration of fact. All occupations in or about any coal mine, except the occupation of slate or other refuse picking at a picking table...

  16. 29 CFR 570.53 - Coal-mine occupations (Order 3).

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Coal-mine occupations (Order 3). 570.53 Section 570.53... § 570.53 Coal-mine occupations (Order 3). (a) Finding and declaration of fact. All occupations in or about any coal mine, except the occupation of slate or other refuse picking at a picking table...

  17. 26 CFR 1.187-1 - Amortization of certain coal mine safety equipment.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 3 2014-04-01 2014-04-01 false Amortization of certain coal mine safety... Corporations (continued) § 1.187-1 Amortization of certain coal mine safety equipment. (a) Allowance of... coal mine safety equipment (as defined in § 1.187-2), based on a period of 60 months. Such...

  18. 26 CFR 1.187-1 - Amortization of certain coal mine safety equipment.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 3 2013-04-01 2013-04-01 false Amortization of certain coal mine safety... Corporations (continued) § 1.187-1 Amortization of certain coal mine safety equipment. (a) Allowance of... coal mine safety equipment (as defined in § 1.187-2), based on a period of 60 months. Such...

  19. 29 CFR 570.60 - Occupations in connection with mining, other than coal (Order 9).

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Occupations in connection with mining, other than coal... Health or Well-Being § 570.60 Occupations in connection with mining, other than coal (Order 9). (a) Finding and declaration of fact. All occupations in connection with mining, other than coal,...

  20. 29 CFR 570.60 - Occupations in connection with mining, other than coal (Order 9).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Occupations in connection with mining, other than coal... Health or Well-Being § 570.60 Occupations in connection with mining, other than coal (Order 9). (a) Finding and declaration of fact. All occupations in connection with mining, other than coal,...

  1. 29 CFR 570.60 - Occupations in connection with mining, other than coal (Order 9).

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Occupations in connection with mining, other than coal... Health or Well-Being § 570.60 Occupations in connection with mining, other than coal (Order 9). (a) Finding and declaration of fact. All occupations in connection with mining, other than coal,...

  2. 29 CFR 570.53 - Coal-mine occupations (Order 3).

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Coal-mine occupations (Order 3). 570.53 Section 570.53... § 570.53 Coal-mine occupations (Order 3). (a) Finding and declaration of fact. All occupations in or about any coal mine, except the occupation of slate or other refuse picking at a picking table...

  3. 29 CFR 570.53 - Coal-mine occupations (Order 3).

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Coal-mine occupations (Order 3). 570.53 Section 570.53... § 570.53 Coal-mine occupations (Order 3). (a) Finding and declaration of fact. All occupations in or about any coal mine, except the occupation of slate or other refuse picking at a picking table...

  4. 30 CFR 947.800 - Requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Requirements for bonding of surface coal mining... WITHIN EACH STATE WASHINGTON § 947.800 Requirements for bonding of surface coal mining and reclamation operations. Part 800 of this chapter, Requirements for Bonding of Surface Coal Mining and...

  5. 30 CFR 903.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 903.762 Section 903.762 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE ARIZONA § 903.762 Criteria for designating areas as unsuitable for surface coal mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal...

  6. 30 CFR 933.761 - Areas designated unsuitable for surface coal mining by Act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE NORTH CAROLINA § 933.761 Areas designated unsuitable for surface coal mining by Act of Congress. Part 761 of this chapter, Areas Designated Unsuitable for Coal Mining by Act of Congress, with the exception of §§ 761.11(c) and 761.12(f)(1), shall apply to surface coal mining and...

  7. 30 CFR 922.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 922.762 Section 922.762 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE MICHIGAN § 922.762 Criteria for designating areas as unsuitable for surface coal mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal...

  8. 30 CFR 937.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... coal mining and reclamation operations. 937.800 Section 937.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE OREGON § 937.800 General requirements for bonding of surface coal mining and reclamation operations. Part 800 of this chapter, General Requirements for Bonding of Surface Coal Mining...

  9. 30 CFR 903.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 903.762 Section 903.762 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE ARIZONA § 903.762 Criteria for designating areas as unsuitable for surface coal mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal...

  10. 30 CFR 933.761 - Areas designated unsuitable for surface coal mining by Act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE NORTH CAROLINA § 933.761 Areas designated unsuitable for surface coal mining by Act of Congress. Part 761 of this chapter, Areas Designated Unsuitable for Coal Mining by Act of Congress, with the exception of §§ 761.11(c) and 761.12(f)(1), shall apply to surface coal mining and...

  11. 30 CFR 910.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 910.762 Section 910.762 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE GEORGIA § 910.762 Criteria for designating areas as unsuitable for surface coal mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal...

  12. 30 CFR 937.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 937.762 Section 937.762 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE OREGON § 937.762 Criteria for designating areas as unsuitable for surface coal mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal...

  13. 30 CFR 912.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... coal mining and reclamation operations. 912.800 Section 912.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE IDAHO § 912.800 General requirements for bonding of surface coal mining and reclamation operations. Part 800 of this chapter, General Requirements for Bonding of Surface Coal Mining...

  14. 30 CFR 922.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 922.762 Section 922.762 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE MICHIGAN § 922.762 Criteria for designating areas as unsuitable for surface coal mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal...

  15. 30 CFR 912.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for surface coal mining operations. 912.762 Section 912.762 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE IDAHO § 912.762 Criteria for designating areas as unsuitable for surface coal mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal...

  16. 30 CFR 947.800 - Requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Requirements for bonding of surface coal mining... WITHIN EACH STATE WASHINGTON § 947.800 Requirements for bonding of surface coal mining and reclamation operations. Part 800 of this chapter, Requirements for Bonding of Surface Coal Mining and...

  17. 30 CFR 922.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... coal mining and reclamation operations. 922.800 Section 922.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE MICHIGAN § 922.800 General requirements for bonding of surface coal mining and reclamation operations. Part 800 of this chapter, General Requirements for Bonding of Surface Coal Mining...

  18. 30 CFR 937.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 937.762 Section 937.762 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE OREGON § 937.762 Criteria for designating areas as unsuitable for surface coal mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal...

  19. 30 CFR 912.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... coal mining and reclamation operations. 912.800 Section 912.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE IDAHO § 912.800 General requirements for bonding of surface coal mining and reclamation operations. Part 800 of this chapter, General Requirements for Bonding of Surface Coal Mining...

  20. 30 CFR 910.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... coal mining and reclamation operations. 910.800 Section 910.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE GEORGIA § 910.800 General requirements for bonding of surface coal mining and reclamation operations. Part 800 of this chapter, General Requirements for Bonding of Surface Coal Mining...

  1. 30 CFR 937.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... coal mining and reclamation operations. 937.800 Section 937.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE OREGON § 937.800 General requirements for bonding of surface coal mining and reclamation operations. Part 800 of this chapter, General Requirements for Bonding of Surface Coal Mining...

  2. 30 CFR 912.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 912.762 Section 912.762 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE IDAHO § 912.762 Criteria for designating areas as unsuitable for surface coal mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal...

  3. 30 CFR 910.762 - Criteria for designating areas as unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... for surface coal mining operations. 910.762 Section 910.762 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE GEORGIA § 910.762 Criteria for designating areas as unsuitable for surface coal mining operations. Part 762 of this chapter, Criteria for Designating Areas Unsuitable for Surface Coal...

  4. 30 CFR 910.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... coal mining and reclamation operations. 910.800 Section 910.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE GEORGIA § 910.800 General requirements for bonding of surface coal mining and reclamation operations. Part 800 of this chapter, General Requirements for Bonding of Surface Coal Mining...

  5. 30 CFR 922.800 - General requirements for bonding of surface coal mining and reclamation operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... coal mining and reclamation operations. 922.800 Section 922.800 Mineral Resources OFFICE OF SURFACE... OPERATIONS WITHIN EACH STATE MICHIGAN § 922.800 General requirements for bonding of surface coal mining and reclamation operations. Part 800 of this chapter, General Requirements for Bonding of Surface Coal Mining...

  6. 75 FR 63864 - Division of Coal Mine Workers' Compensation; Proposed Extension of Existing Collection; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-18

    ... of Workers' Compensation Programs Division of Coal Mine Workers' Compensation; Proposed Extension of... to Coal Mine Employment (CM-913). A copy of the proposed information collection request can be... of benefits to coal miners who are totally disabled by black lung disease arising out of coal...

  7. 20 CFR 726.1 - Statutory insurance requirements for coal mine operators.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 3 2011-04-01 2011-04-01 false Statutory insurance requirements for coal..., DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG BENEFITS; REQUIREMENTS FOR COAL MINE OPERATOR'S INSURANCE General § 726.1 Statutory insurance requirements for coal...

  8. 78 FR 72717 - Division of Coal Mine Workers' Compensation; Proposed Collection; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-03

    ... of Workers' Compensation Programs Division of Coal Mine Workers' Compensation; Proposed Collection... to Coal Mine Employment (CM-913). A copy of the proposed information collection request can be... of benefits to coal miners who are totally disabled by black lung disease arising out of coal...

  9. Pulsed, Hydraulic Coal-Mining Machine

    NASA Technical Reports Server (NTRS)

    Collins, Earl R., Jr.

    1986-01-01

    In proposed coal-cutting machine, piston forces water through nozzle, expelling pulsed jet that cuts into coal face. Spring-loaded piston reciprocates at end of travel to refill water chamber. Machine a onecylinder, two-cycle, internal-combustion engine, fueled by gasoline, diesel fuel, or hydrogen. Fuel converted more directly into mechanical energy of water jet.

  10. Fe and Mn removal from mining drainage using goaf filling materials obtained from coal mining process.

    PubMed

    Zhang, Liping; Chen, Aolei; Qu, Hongbin; Xu, Shouqiang; Zhang, Xue; He, Xuwen

    2015-01-01

    Coal gangue, sandy soil and clay (mass ratio 45:4:1) as goaf filling materials acquired from coal mining processes were applied to remove Fe and Mn effectively from mining drainage. The results of an adsorption kinetic study showed that the Fe adsorption equation was y=21.454y+8.4712, R2=0.9924 and the Mn adsorption equation was y=7.5409x+0.905, R2=0.9957. Meanwhile, the goaf filling materials had low desorption capacity (Fe 6.765 μg/g, Mn 1.52 μg/g) and desorption ratio (Fe 8.98%, Mn 11.04%). Experiments demonstrated that Fe and Mn from mining drainage could be removed stably at a flow rate of 1.2 L/min, Fe inlet concentration of less than 40 mg/L, Mn inlet concentration of less than 2 mg/L and neutral or alkaline conditions. During a procedure of continuous experiments, the effluent quality could meet the requirement of the 'Code for Engineering Design of Sewage Regeneration-GB503352-2002'. A real-application project using goaf filling materials to treat mining drainage in Shendong coal mine showed that the average cost per ton of mining drainage was about 0.55 RMB, which could bring about considerable economic benefit for coal mining enterprises. PMID:26606087

  11. Injection of coal combustion byproducts into the Omega Mine for the reduction of acid mine drainage

    SciTech Connect

    Gray, T.A.; Moran, T.C.; Broschart, D.W.; Smith, G.A.

    1998-12-31

    The Omega Mine Complex is located outside of Morgantown, West Virginia. The mine is in the Upper Freeport Coal, an acid-producing coal seam. The coal was mined in a manner that has resulted in acid mine drainage (AMD) discharges at multiple points. During the 1990`s, the West Virginia Division of Environmental Protection (WVDEP) assumed responsibility for operating a collection and treatment system for the AMD. Collection and treatment costs are approximately $300,000 per year. An innovative procedure of injecting grout into the mine workings to reduce AMD and the resulting treatment costs is proposed. The procedure involves injecting grout mixes composed primarily of coal combustion byproducts (CCB`s) and water, with a small quantity of cement. The intention of the injection program is to fill the mine voids in the north lobe of the Omega Mine (an area where most of the acidity is believed to be generated) with the grout, thus reducing the contact of air and water with potentially acidic material. The grout mix design consists of an approximate 1:1 ratio of fly ash to byproducts from fluidized bed combustion. Approximately 100 gallons of water per cubic yard of grout is used to help achieve flowability. Observation of the mine workings via subsurface borings and downhole video camera operation confirmed that first-mined areas were generally open while second-mined areas were generally partially collapsed. Closer injection hole spacing was used in second-mined areas to account for collapsed workings. The construction documents have been prepared with the project being bid in late 1997. The engineer`s cost estimate was approximately $2,500,000, with the low bid of approximately $2,300,000 being submitted by Howard Concrete Pumping of Bridgeville, PA.

  12. Structural implications of underground coal mining in the Mesaverde Group in the Somerset Coal Field, Delta and Gunnison Counties, Colorado

    SciTech Connect

    Christopher J. Carroll; Eric Robeck; Greg Hunt; Wendell Koontz

    2004-07-01

    Paleogene and Neogene faults and fractures on the eastern edge of the Colorado Plateau are present in Mesaverde Group coal and sandstone beds. Recent observations of coal cleat orientation in relation to faults in coal mines have significant impacts for mine planning in the area. Faults, coal cleats, and natural fractures are interpreted to show a structural evolution of the Mesaverde Group through time. This field trip included a visit to two active underground coal mines, the Bowie Resources' Bowie No. 2 Mine, and Mountain Coal's West Elk Mine. Mine geologists discussed structural styles including fault orientations and timing, cleat development, and rotation. Geologic encounters ranging from fault flooding, subsidence, mine fires, methane gas problems, and land use restrictions were also discussed. Coal cleat development and open-mode fractures in adjacent sandstones were observed on outcrops and compared to underground measurements in coal mines in the Somerset Coal Field, Colorado's most productive. Coal cleat orientations along a reverse fault in one mine showed rotation in relation to possible Neogene age displacement.

  13. 30 CFR 921.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 921.764 Section 921.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS... Coal Mining Operations, pertaining to petitioning, initial processing, hearing requirements,...

  14. AN IMPROVED INVENTORY OF METHANE EMISSIONS FROM COAL MINING IN THE UNITED STATES

    EPA Science Inventory

    Past efforts to estimate methane emissions from underground mines surface mines, and other coal mine operations have been hampered, to different degrees, by a lack of direct emissions data. Direct measurements have been completely unavailable for several important coal mining ope...

  15. 78 FR 35974 - Proposed Information Collection; Comment Request; Coal Mine Rescue Teams; Arrangements for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-14

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Mine Safety and Health Administration Proposed Information Collection; Comment Request; Coal Mine Rescue Teams... Requirements; Posting Requirements AGENCY: Mine Safety and Health Administration, Labor. ACTION: 60-Day...

  16. From in-situ coal to fly ash: A study of coal mines and power plants from Indiana

    USGS Publications Warehouse

    Mastalerz, Maria; Hower, J.C.; Drobniak, A.; Mardon, S.M.; Lis, G.

    2004-01-01

    This paper presents data on the properties of coal and fly ash from two coal mines and two power plants that burn single-source coal from two mines in Indiana. One mine is in the low-sulfur (5%) Springfield Coal Member of the Petersburg Formation (Pennsylvanian). Both seams have comparable ash contents (???11%). Coals sampled at the mines (both raw and washed fractions) were analyzed for proximate/ultimate/sulfur forms/heating value, major oxides, trace elements and petrographic composition. The properties of fly ash from these coals reflect the properties of the feed coal, as well as local combustion and post-combustion conditions. Sulfur and spinel content, and As, Pb and Zn concentrations of the fly ash are the parameters that most closely reflect the properties of the source coal. ?? 2004 Elsevier B.V. All rights reserved.

  17. 78 FR 48591 - Refuge Alternatives for Underground Coal Mines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Appropriations Act of 2008, SEC. 112(b)). MSHA published a notice of proposed rulemaking on June 16, 2008 (73 FR 34140) and the final rule on December 31, 2008 (73 FR 80656). The final rule established requirements... Refuge Alternatives for Underground Coal Mines; Proposed Rules #0;#0;Federal Register / Vol. 78 , No....

  18. Mycobacterium marinum Infection After Exposure to Coal Mine Water

    PubMed Central

    Huaman, Moises A.; Ribes, Julie A.; Lohr, Kristine M.; Evans, Martin E.

    2016-01-01

    Mycobacterium marinum infection has been historically associated with exposure to aquariums, swimming pools, fish, or other marine fauna. We present a case of M marinum left wrist tenosynovitis and elbow bursitis associated with a puncture injury and exposure to coal mine water in Illinois. PMID:26835478

  19. Mycobacterium marinum Infection After Exposure to Coal Mine Water.

    PubMed

    Huaman, Moises A; Ribes, Julie A; Lohr, Kristine M; Evans, Martin E

    2016-01-01

    Mycobacterium marinum infection has been historically associated with exposure to aquariums, swimming pools, fish, or other marine fauna. We present a case of M marinum left wrist tenosynovitis and elbow bursitis associated with a puncture injury and exposure to coal mine water in Illinois. PMID:26835478

  20. 30 CFR 75.1721 - Opening of new underground coal mines, or reopening and reactivating of abandoned or deactivated...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Opening of new underground coal mines, or reopening and reactivating of abandoned or deactivated coal mines, notification by the operator... LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Miscellaneous §...

  1. The use of atmospheric monitoring systems in dieselized coal mines

    SciTech Connect

    Wirth, G.J.; Schultz, M.J.; Francart, W.J.

    1995-12-31

    Atmospheric Monitoring Systems (AMS) utilizing carbon monoxide sensors have demonstrated their superiority over thermal type fire sensors for early fire detection in underground coal mines. After proving their capability and dependability throughout the 1980`s. systems are now evolving and applying new technologies to enhance their effectiveness and reliability. The use of AMS in coal mines which utilize diesel equipment presents unique obstacles. Exhaust gases from diesel equipment not only raise mine ambient CO readings, but also cause numerous nuisance alarms. Both of these conditions reduce the effectiveness of the AMS. New technologies, such as discriminating devices, smoke detectors, and time delays, as well as administrative controls, have been developed and are being utilized to help reduce nuisance alarms produced by the diesel exhaust. This paper will discuss these technologies and administrative controls which are being utilized in coal mines to enhance the effectiveness of the Atmospheric Monitoring Systems. Reference to specific products does not imply endorsement by the Mine Safety and Health Administration.

  2. Estimation of the exertion requirements of coal mining work

    SciTech Connect

    Harber, P.; Tamimie, J.; Emory, J.

    1984-02-01

    The work requirements of coal mining work were estimated by studying a group of 12 underground coal miners. A two level (rest, 300 kg X m/min) test was performed to estimate the linear relationship between each subject's heart rate and oxygen consumption. Then, heart rates were recorded during coal mining work with a Holter type recorder. From these data, the distributions of oxygen consumptions during work were estimated, allowing characterization of the range of exertion throughout the work day. The average median estimated oxygen consumption was 3.3 METS, the average 70th percentile was 4.3 METS, and the average 90th percentile was 6.3 METS. These results should be considered when assessing an individual's occupational fitness.

  3. Psycho-social aspects of productivity in underground coal mining

    SciTech Connect

    Akin, G.

    1981-10-01

    This report presents the results of an investigation into the psycho-social aspects of productivity in underground coal mining. Chapter 1 reviews the status of the literature on labor productivity changes. Chapter 2 is an introduction to current concepts and research on psycho-social factors in productivity, with a survey of experiments in productivity improvement presented in Chapter 3. Chapter 4 discusses the impact of the introduction of new technology on the social system and the way that it accomplishes production. Chapter 5 presents a clinical study of a coal mining operation, and develops a model of how production is actually accomplished by workers at the coal face. Implications and recommendations for new technology design, implementation and ongoing management are presented in Chapter 6.

  4. Exotic grasslands on reclaimed midwestern coal mines: An ornithological perspective

    SciTech Connect

    Scott, P.E.; Lima, S.L.

    2004-07-01

    The largest grasslands in Indiana and Illinois are on reclaimed surface coal mines, which are numerous in the Illinois Coal Basin. The reclamation goal of establishing a vegetation cover with inexpensive, hardy exotic grass species (e.g., tall fescue, smooth brome) inadvertently created persistent, large grassland bird refuges. We review research documenting the importance of these sites for native prairie birds. On mines, grassland specialist birds (restricted to grassland throughout their range) prefer sites dominated by exotic grasses to those rich in forbs, whereas nonspecialist bird species show no significant preference. Midwestern mine grasslands potentially could be converted into landscapes that include native warm-season grasses and forbs adapted to the relatively dry, poor soil conditions, in addition to the present successful exotic grass stands. A key question is whether native mixtures will resist conversion to forb-rich or woody growth over the long term, as the exotic grasses have done.

  5. Gazetteer of coal-mine lakes in southwestern Indiana

    USGS Publications Warehouse

    Bobo, Linda L.

    1979-01-01

    This gazetteer is a catalog of lakes formed by surface coal mining in southwestern Indiana that are 0.5 acre or larger and in nonactive mine areas. Approximately 1,000 of the lakes are listed by 7.5-minute quadrangle topographic-map name, lake-identification number, latitude and longitude, and county. Other data given are shape of lake, maximum length, mean width, length and development of shoreline, surface area, orientation, presence of a stream inlet or outlet, and geologic data (geologic formation of area surrounding the lake and the mined coal-bed member). Field data (sampling date, pH, specific conductance, apparent color of lake, and general vegetation along the shoreline) were collected for 287 of the lakes. The apparent colors of the lakes observed were varying shades of aqua, blue, brown, lime green, red, and green. Eighty percent of the lakes sampled were green. (Woodard - USGS)

  6. Using light-scattering intensities to discriminate waterdrops from coal mine dusts. Information circular/1993

    SciTech Connect

    Vinson, R.P.

    1993-01-01

    The U.S. Bureau of Mines conducts research to protect the health of the Nation's coal miners. The Bureau is pursuing a research program to eliminate coal workers' pneumoconiosis (CWP) by the reduction of respirable coal mine dust in the mine air. A basic requirement for this task is instrumentation to measure respirable coal mine dust concentrations quickly and accurately. The Bureau's research program is applying these advances to develop a photometer that can discriminate between various coal mine aerosols. One objective of this program is to collect scattering signatures of coal mine aerosols. Scattering signatures are the intensities of light scattered by aerosols as a function of angle. Bureau researchers used an instrument, called the DAWN-A, to collect the scattering signatures of various coal mine aerosols for analysis and comparison. The report describes and discusses this work.

  7. Small airways involvement in coal mine dust lung disease.

    PubMed

    Long, Joshua; Stansbury, Robert C; Petsonk, Edward L

    2015-06-01

    Inhalation of coal mine dust results in a spectrum of symptoms, dysfunction, and pathological changes in the respiratory tract that collectively have been labeled coal mine dust lung disease. Recent reports from periodic health surveillance among underground and surface coal miners in the United States have demonstrated an increasing prevalence and severity of dust diseases, and have also documented that some miners experience rapid disease progression. The coal macule is an inflammatory lesion associated with deposited dust, and occurs in the region of the most distal conducting airways and proximal respiratory bronchioles. Inflammatory changes in the small airways have long been recognized as the signature lung pathology among coal miners. Human and laboratory studies have suggested oxidant injury, and increased recruitment and activity of macrophages play important roles in dust-induced lung injury. However, the functional importance of the small airway changes was debated for many years. We reviewed published literature that documents a pervasive occurrence of both physiologic and structural abnormalities in small airways among coal miners and other workers exposed to airborne particulates. There is increasing evidence supporting an important association of abnormalities in the small peripheral airways with the development of respiratory symptoms, deficits in spirometry values, and accelerated declines in ventilatory lung function. Pathologic changes associated with mineral dust deposition in the small airways may be of particular importance in contemporary miners with rapidly progressive respiratory impairment.

  8. Portable breathing apparatus for coal mines

    NASA Technical Reports Server (NTRS)

    Vandolah, R. W.

    1972-01-01

    The state of the art in portable oxygen breathing equipment is reported. Considered are self-containing as well as chemically generating oxygen sources and their effectiveness and limitations in mine rescue operations.

  9. Occupational noise in coal mining -- A continuing problem

    SciTech Connect

    Bartholomae, R.C.

    1996-12-31

    Overexposure to noise, as defined by current Mine Safety and Health Administration (MSHA) regulations, is a widespread problem in mining that can lead to serious worker hearing handicaps. Noise-induced hearing loss has also been recognized by the National Institute of Occupational Safety and Health (NIOSH) as one of the ten leading work-related diseases and injuries in this country. A 1976 epidemiological study performed by NIOSH confirmed that coal miners suffer significant work related hearing loss. For example, at that time, by age 60 more than 70% of the underground coal miners surveyed had a hearing loss exceeding 25 dB which medically and legally classifies them as hearing handicapped. More recent data indicate that overexposure to noise continues to be a problem for miners in all areas of mining and minerals processing. The number of miners overexposed to noise far overshadows the number overexposed to any other mining occupational health hazard such as coal dust or radiation. This paper reviews the history of mining noise and its control since passage of the Coal Mine Health and Safety Act of 1969. In addition, an assessment of the potential impact on the industry of proposed changes in the noise regulations is provided. An OSHA style hearing conservation program might help to alleviate some of this problem. The reasons for this recommendation are twofold: first, a large number of miners are suffering occupational hearing handicaps, and second, the cost to the industry is projected to skyrocket in the form of hearing loss compensation if this recommendation is not followed.

  10. Criteria for a recommended standard. Occupational exposure to respirable coal mine dust

    SciTech Connect

    1995-09-01

    Information regarding adverse health effects resulting from exposure to respirable coal mine dust was reviewed as a basis for the development of new occupational safety and health standards. Evidence indicated that coal mine dust exposures over a working lifetime may result in the development of simple coal workers` pneumonocoiosis, progressive massive fibrosis, and chronic obstructive pulmonary disease. Recommendations are provided concerning respirable coal mine dust sampling to monitor worker exposure, the proper use of personal protective equipment, and medical screening and surveillance examinations.

  11. 30 CFR 75.1721 - Opening of new underground coal mines, or reopening and reactivating of abandoned or deactivated...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...; requirements. 75.1721 Section 75.1721 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Miscellaneous § 75... prior to opening, reopening or reactivating the mine notify the Coal Mine Health and Safety...

  12. 30 CFR 75.1721 - Opening of new underground coal mines, or reopening and reactivating of abandoned or deactivated...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...; requirements. 75.1721 Section 75.1721 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Miscellaneous § 75... prior to opening, reopening or reactivating the mine notify the Coal Mine Health and Safety...

  13. Remediation of abandoned mines using coal combustion by-products

    SciTech Connect

    Bulusu, S.; Aydilek, A.H.; Petzrick, P.; Guynn, R.

    2005-08-01

    Acid mine drainage (AMD) is a phenomenon that occurs when pyrite that is present in abandoned coal mines comes in contact with oxygen and water, which results in the formation of sulfuric acid and iron hydroxide. Grouting of an abandoned mine with alkaline materials provides a permanent reduction in acid production. This study investigates the success of coal combustion by-product (CCB)-based grout mixtures in reducing AMD. The laboratory phase included testing of grouts with different proportions of Class F fly ash, flue gas desulfurization by-product, fluidized bed combustion by-product, and quicklime, for slump, modified flow, bleed, and strength. Then the selected optimal grout mixture was injected into the Frazee mine, located in Western Maryland. Pre- and post-injection water quality data were collected to assess the long-term success of the grouting operation by analyzing mine water, surface water, and groundwater. Overall, the results indicated that CCB-based grouts can control the acid mine drainage. However, the mechanical properties of the grout are highly critical for the construction phase, and long-term monitoring is essential for evaluating the effectiveness of the grouting process.

  14. Humanitarian multisensor hand-held mine detector: exploitation of ancillary data in GPR processing

    NASA Astrophysics Data System (ADS)

    Crisp, Graeme N.; Hill, Andrew

    2002-08-01

    QinetiQ is developing a hand held Multi-sensor mine detector prototype for humanitarian applications. The sensor consists of a GPR, a metal detector and ancillary sensors. This paper describes how data produced by ancillary sensors can be exploited in order to assist the GPR processing. The GPR consists of a 3x3 array of antennas, and focused images of the volume beneath the sensor are formed by post reception synthetic aperture processing. The mine detector is intended to detect sub surface targets, and an accurate knowledge of the ground surface position relative to the sensor is required. Also the high frequency dielectric constant of the ground medium is required in order to produce focused images. This paper analyses the requirements for good post reception synthetic aperture processing. The accuracy of the ground surface position data and the dielectric constant estimation are determined. A model for soil dielectric constant is used to derive the sensitivity of post reception synthetic aperture processing to unknown soil texture. It is show that for the GPR configuration considered, a wide range of texture variations is tolerable provided the soil moisture can be accurately estimated. Variations in soil composition are also tolerable.

  15. A study of mining-induced seismicity in Czech mines with longwall coal exploitation

    SciTech Connect

    Holub, K.

    2007-01-15

    A review is performed for the data of local and regional seismographical networks installed in mines of the Ostrava-Karvina Coal Basin (Czech Republic), where underground anthracite mining is carried out and dynamic events occur in the form of rockbursts. The seismological and seismoacoustic observations data obtained in panels that are in limiting state are analyzed. This aggregate information is a basic for determining hazardous zones and assigning rockburst prevention measures.

  16. Frictional ignition with coal-mining bits. Information Circular/1990

    SciTech Connect

    Courtney, W.G.

    1990-01-01

    The publication reviews recent U.S. Bureau of Mines studies of frictional ignition of a methane-air environment by coal mining bits cutting into sandstone and the effectiveness of remedial techniques to reduce the likelihood of frictional ignition. Frictional ignition with a mining bit always involves a worn bit having a wear flat on the tip of the bit. The worn bit forms hot spots on the surface of the sandstone because of frictional abrasion. The hot spots then can ignite the methane-air environment. A small wear flat forms a small hot spot, which does not give ignition, while a large wear flat forms a large hot spot, which gives ignition. The likelihood of frictional ignition can be somewhat reduced by using a mushroom-shaped tungsten-carbide bit tip on the mining bit and by increasing the bit clearance angle; it can be significantly reduced by using a water spray nozzle in back of each bit.

  17. Airborne remote sensing of coal waste and acid mine drainage

    SciTech Connect

    Kim, K.E.; Lee, T.S.

    1996-07-01

    High resolution airborne remote sensing data, spatial resolution of 2m X 2m, were used to study the stream quality degradation due to the coal mines in Taebaek city, one of the major coalfields in Korea. In order to circumvent the severe topographic effect and small scale of the water stream, principal components with the least variances were utilized. They showed the subtle details in the image that were obscured by higher contrast due to the topographic effect. Through maximum likelihood classification of those components, yellowboy and mine waste could be effectively identified. Areas affected by acid mine drainage and mine waste could be also located by identifying areas of dead or dying vegetation using vegetation index map.

  18. Environmental Reconnaissance of Shivee-Ovoo Coal Mine, Mongolia

    NASA Astrophysics Data System (ADS)

    Battogtokh, B.; Woo, N. C.; Nemer, B.

    2011-12-01

    Mining sector is one of most rapidly developing industries in Mongolia for the last several decades. However, environmental monitoring and protection measures have been left out. An exploratory investigation was conducted to evaluate potential impacts of the mining activities on the soil and water environment at the Shivee-Ovoo surface coal mine. Water samples were collected from the mine dewatering boreholes, discharge lakes and drinking water sources around the mine area. High levels of electrical conductivity, ranging from 325μS/cm to 2,909μS/cm, indicate significant contents of dissolved solids in water. In general, Mg, Fe, F and EC levels in drinking water exceed the level of Mongolian and WHO guidelines for drinking water, and they appear to result from water-rock interaction along the groundwater flow paths. Hierarchical cluster analysis implies that the waters from the mine area and those from public water-supply wells be originated from the same aquifer. However, the water from the spring, dug well and artesian well are grouped separately, indicating different geological effects due to the shallow groundwater system with relatively short period of water-rock interaction. Groundwater dewatering for open-pit mine excavation causes significant water-level decline, and subsequently, the residents nearby areas happen to be provided with water from the deeper aquifer, which has with higher dissolved solids probably through longer period of water-rock interaction. Soil samples were collected from the top, middle and lower soil layers of excavation bench, mine-waste dump sites, topsoil and subsoil from nearby area of the mine. To evaluate potential of Acid Rock Drainage (ARD), samples were analyzed for chemical composition using X-ray photoelectron spectroscopy (XPS). Results show 0.36% of sulfur in only one sample, collected from waste dumping site of low quality coal. Since sulfur component were not detected in other samples, there appear no apparent threat of

  19. Resource requirements and economics of the coal-mining process: a comparative analysis of mines in selected countries

    SciTech Connect

    Astakhov, A.; Gruebler, A.

    1984-06-01

    This report examines the natural resource requirements and economics of the resource extraction process, taking coal-mining activities as an example. Coal was chosen for the study because it is receiving growing attention as the fossile energy resource with the largest potential to contribute to the world's long-term energy supply. The computerized description of the extraction process is stored in the Coal Mines Data Base (CMDB) which was developed within the framework of this study. The data base currently holds information on 70 mines located in different countries. The analytic approach used is the first of its kind to compare resource requirements and economics of coal mines under such a broad range of geological and socioeconomic conditions. A general model of the factors influencing resource inputs and impacts of the coal-mining process is presented. Then for each of the main mining methods (opencast, conventional underground, and hydraulic underground) the principal geological and technological factors influencing the resource requirements, economics, and environmental impacts, as well as the comparative advantages and disadvantages of each mining method, are discussed. For the three main mining methods the resource requirements (including manpower, energy, materials, and land) and the economics (including construction investments and operating costs) are then quantified and their cost structures (i.e. requirements for the different operations at a mine) are examined in detail using data from coal mines in the USA, the USSR, and other selected coal-producing countries (Australia, Austria, and France).

  20. The fox guarding the chicken coop: monitoring exposure to respirable coal mine dust, 1969-2000.

    PubMed

    Weeks, James L

    2003-08-01

    Following passage of the Coal Mine Health and Safety Act of 1969, underground coal mine operators were required to take air samples in order to monitor compliance with the exposure limit for respirable dust, a task essential for the prevention of pneumoconiosis among coal workers. Miners objected, claiming that having the mine operators perform this task was like "having the fox guard the chicken coop." This article is a historical narrative of mining industry corruption and of efforts to reform the program of monitoring exposure to coal mine dust. Several important themes common to the practice of occupational health are illustrated; most prominently, that employers should not be expected to regulate themselves.

  1. 76 FR 13669 - Division of Coal Mine Workers' Compensation; Proposed Extension of Existing Collection; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-14

    ... of Workers' Compensation Programs Division of Coal Mine Workers' Compensation; Proposed Extension of.... 941 and 20 CFR 725.533(e) authorizes the Division of Coal Mine Workers' Compensation (DCMWC) to pay compensation to coal miner beneficiaries. Once a miner or survivor is found eligible for benefits, the...

  2. 20 CFR 718.203 - Establishing relationship of pneumoconiosis to coal mine employment.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... to coal mine employment. 718.203 Section 718.203 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED STANDARDS FOR DETERMINING COAL MINERS' TOTAL DISABILITY OR DEATH DUE TO PNEUMOCONIOSIS Determining Entitlement to...

  3. 20 CFR 718.203 - Establishing relationship of pneumoconiosis to coal mine employment.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... to coal mine employment. 718.203 Section 718.203 Employees' Benefits EMPLOYMENT STANDARDS ADMINISTRATION, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED STANDARDS FOR DETERMINING COAL MINERS' TOTAL DISABILITY OR DEATH DUE TO PNEUMOCONIOSIS Determining Entitlement to...

  4. 20 CFR 718.203 - Establishing relationship of pneumoconiosis to coal mine employment.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... to coal mine employment. 718.203 Section 718.203 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED STANDARDS FOR DETERMINING COAL MINERS' TOTAL DISABILITY OR DEATH DUE TO PNEUMOCONIOSIS Determining Entitlement to...

  5. 75 FR 51488 - Division of Coal Mine Workers' Compensation; Proposed Extension of Information Collection...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-20

    ... of Workers' Compensation Programs Division of Coal Mine Workers' Compensation; Proposed Extension of... comments (mail, fax, or E-mail). SUPPLEMENTARY INFORMATION: I. Background: The Division of Coal Mine... benefits to coal miners totally disabled due to pneumoconiosis, and their surviving dependents. When...

  6. Extensible telescopic coal bunker for subsurface mining

    SciTech Connect

    Gunther, R.; Sander, G.

    1980-12-02

    A subsurface coal bunker operating to receive and discharge coal is structured with an assemblage of nested telescopic container members including one stationary member and a plurality of movable members, with the container members being formed in size in a graduated series with each container member being sized to fit into a next larger container member adjacent thereto. The movable members are telescopically extensible and contractible in order to vary the volume of the assemblage and the bunker assembly is provided with a first belt conveyor for feeding material into the assemblage and a second belt conveyor for transporting material therefrom. A reversible drive mechanism, consisting of hydraulic cylinder devices actuating a system of drive chains and pulleys, is mounted on a support frame of the bunker and operates to drive the movable members between the extended and contracted positions.

  7. Corrosion of rock anchors in US coal mines

    NASA Astrophysics Data System (ADS)

    Bylapudi, Gopi

    The mining industry is a major consumer of rock bolts in the United States. Due to the high humidity in the underground mining environment, the rock bolts corrode and loose their load bearing capacity which in turn reduces the life expectancy of the ground support and, thus, creates operational difficulties and number of safety concerns[1]. Research on rock anchor corrosion has not been adequately extensive in the past and the effects of several factors in the mine atmosphere and waters are not clearly understood. One of the probable reasons for this lack of research may be attributed to the time required for gathering meaningful data that makes the study of corrosion quite challenging. In this particular work underground water samples from different mines in the Illinois coal basin were collected and the major chemical content was analyzed and used for the laboratory testing. The corrosion performance of the different commercial rock anchors was investigated by techniques such as laboratory immersion tests in five different corrosion chambers, and potentiodynamic polarization tests in simulated ground waters based on the Illinois coal basin. The experiments were conducted with simulate underground mining conditions (corrosive). The tensile strengths were measured for the selected rock anchors taken every 3 months from the salt spray corrosion chambers maintained at different pH values and temperatures. The corrosion potential (Ecorr ), corrosion current (Icorr) and the corresponding corrosion rates (CR) of the selected commercial rock bolts: #5, #6, #6 epoxy coated and #7 forged head rebar steels, #6 and #7 threaded head rebar steels were measured at the solution pH values of 5 and 8 at room temperature. The open circuit potential (OCP) values of the different rock anchors were recorded in 3 selected underground coal mines (A, B & C) in the Illinois coal basin and the data compared with the laboratory electrochemical tests for analyzing the life of the rock

  8. 30 CFR 922.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 922.764 Section 922.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE MICHIGAN § 922.764 Process for designating areas unsuitable for surface coal...

  9. 30 CFR 939.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 939.764 Section 939.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE RHODE ISLAND § 939.764 Process for designating areas unsuitable for surface coal...

  10. 30 CFR 937.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 937.764 Section 937.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE OREGON § 937.764 Process for designating areas unsuitable for surface coal...

  11. 30 CFR 947.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 947.764 Section 947.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE WASHINGTON § 947.764 Process for designating areas unsuitable for surface coal...

  12. 30 CFR 941.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 941.764 Section 941.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE SOUTH DAKOTA § 941.764 Process for designating areas unsuitable for surface coal...

  13. 30 CFR 939.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 939.764 Section 939.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE RHODE ISLAND § 939.764 Process for designating areas unsuitable for surface coal...

  14. 30 CFR 922.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 922.764 Section 922.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE MICHIGAN § 922.764 Process for designating areas unsuitable for surface coal...

  15. 30 CFR 937.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 937.764 Section 937.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE OREGON § 937.764 Process for designating areas unsuitable for surface coal...

  16. 30 CFR 941.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 941.764 Section 941.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE SOUTH DAKOTA § 941.764 Process for designating areas unsuitable for surface coal...

  17. 30 CFR 947.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 947.764 Section 947.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE WASHINGTON § 947.764 Process for designating areas unsuitable for surface coal...

  18. 30 CFR 910.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 910.764 Section 910.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE GEORGIA § 910.764 Process for designating areas unsuitable for surface coal...

  19. 30 CFR 912.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 912.764 Section 912.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE IDAHO § 912.764 Process for designating areas unsuitable for surface coal...

  20. 30 CFR 912.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 912.764 Section 912.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE IDAHO § 912.764 Process for designating areas unsuitable for surface coal...

  1. 30 CFR 905.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 905.764 Section 905.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE CALIFORNIA § 905.764 Process for designating areas unsuitable for surface coal...

  2. 30 CFR 910.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 910.764 Section 910.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE GEORGIA § 910.764 Process for designating areas unsuitable for surface coal...

  3. 30 CFR 903.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 903.764 Section 903.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE ARIZONA § 903.764 Process for designating areas unsuitable for surface coal...

  4. 30 CFR 942.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 942.764 Section 942.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE TENNESSEE § 942.764 Process for designating areas unsuitable for surface coal...

  5. 30 CFR 942.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 942.764 Section 942.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE TENNESSEE § 942.764 Process for designating areas unsuitable for surface coal...

  6. 30 CFR 942.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... surface coal mining operations. 942.764 Section 942.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE TENNESSEE § 942.764 Process for designating areas unsuitable for surface coal...

  7. 30 CFR 903.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 903.764 Section 903.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE ARIZONA § 903.764 Process for designating areas unsuitable for surface coal mining operations. Part 764 of this chapter, State Processes for Designating Areas Unsuitable for Surface...

  8. 30 CFR 937.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 937.764 Section 937.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE OREGON § 937.764 Process for designating areas unsuitable for surface coal...

  9. 30 CFR 937.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 937.764 Section 937.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE OREGON § 937.764 Process for designating areas unsuitable for surface coal...

  10. 30 CFR 905.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 905.764 Section 905.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE CALIFORNIA § 905.764 Process for designating areas unsuitable for surface coal mining operations. Part 764 of this chapter, State Processes for Designating Areas Unsuitable for Surface...

  11. 30 CFR 912.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 912.764 Section 912.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE IDAHO § 912.764 Process for designating areas unsuitable for surface coal mining operations. Part 764 of this chapter, State Processes for Designating Areas Unsuitable for Surface...

  12. 30 CFR 905.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 905.764 Section 905.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE CALIFORNIA § 905.764 Process for designating areas unsuitable for surface coal mining operations. Part 764 of this chapter, State Processes for Designating Areas Unsuitable for Surface...

  13. 30 CFR 903.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 903.764 Section 903.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE ARIZONA § 903.764 Process for designating areas unsuitable for surface coal mining operations. Part 764 of this chapter, State Processes for Designating Areas Unsuitable for Surface...

  14. 76 FR 25277 - Examinations of Work Areas in Underground Coal Mines and Pattern of Violations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-04

    ... Coal Mines, published on December 27, 2010 (75 FR 81165), and the proposed rule for Pattern of Violations, published on February 2, 2011 (76 FR 5719), are available on http://www.regulations.gov and on... Areas in Underground Coal Mines and Pattern of Violations AGENCY: Mine Safety and Health...

  15. 30 CFR 910.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 910.764 Section 910.764 Mineral Resources OFFICE OF SURFACE MINING... WITHIN EACH STATE GEORGIA § 910.764 Process for designating areas unsuitable for surface coal mining operations. Part 764 of this chapter, State Processes for Designating Areas Unsuitable for Surface...

  16. 75 FR 69617 - Lowering Miners' Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-15

    ... addressing Lowering Miners' Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors. The proposed rule was published on October 19, 2010 (75 FR 64412) and is available on MSHA's Web...' Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors AGENCY: Mine Safety...

  17. 76 FR 25277 - Lowering Miners' Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-04

    ... FR 64412), MSHA published a proposed rule, Lowering Miners' Exposure to Respirable Coal Mine Dust... the proposed rule. The proposal was published on October 19, 2010 (75 FR 64412). DATES: All comments...' Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors AGENCY: Mine Safety...

  18. 30 CFR 941.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 941.764 Section 941.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE SOUTH DAKOTA § 941.764 Process for designating areas unsuitable for surface coal...

  19. 30 CFR 939.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 939.764 Section 939.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE RHODE ISLAND § 939.764 Process for designating areas unsuitable for surface coal...

  20. 30 CFR 922.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 922.764 Section 922.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE MICHIGAN § 922.764 Process for designating areas unsuitable for surface coal...

  1. 30 CFR 910.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 910.764 Section 910.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE GEORGIA § 910.764 Process for designating areas unsuitable for surface coal...

  2. Information Resources for Coal Mining and Related Subjects. A Bibliographic Guide.

    ERIC Educational Resources Information Center

    Zhang, Sha Li, Comp.

    This bibliography lists materials on coal mining and related resources contained in the library of Southeast Community College (Kentucky). The guide is organized in six sections. The first section lists reference materials and is annotated. The second section lists books. Subject headings include coal miners, mines, and trade; mine safety; mineral…

  3. 30 CFR 941.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 941.764 Section 941.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE SOUTH DAKOTA § 941.764 Process for designating areas unsuitable for surface coal...

  4. 30 CFR 922.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 922.764 Section 922.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE MICHIGAN § 922.764 Process for designating areas unsuitable for surface coal...

  5. 30 CFR 939.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... surface coal mining operations. 939.764 Section 939.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE RHODE ISLAND § 939.764 Process for designating areas unsuitable for surface coal...

  6. 78 FR 45566 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Coal Mine...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-29

    ...; Coal Mine Dust Sampling Devices ACTION: Notice. SUMMARY: The Department of Labor (DOL) is submitting the Mine Safety and Health Administration (MSHA) sponsored information collection request (ICR) titled, ``Coal Mine Dust Sampling Devices,'' to the Office of Management and Budget (OMB) for review and...

  7. Financing coal mine, methane recovery and utilization projects

    SciTech Connect

    2006-07-01

    The article describes types and sources of funding that may be available to project developers and investors that are interested in pursuing coal mine methane (CMM) project opportunities particularly in developing countries or economies in transition. It briefly summarizes prefeasibility and feasibility studies and technology demonstrations. It provides a guide to key parties involved in project financing (equity, debt or carbon financing) as well as project risk reduction support. This article provides an update to the information contained in two previous guides - Catalogue of Coal Mine Methane Project Finance Sources (2002) and A Guide to Financing Coalbed Methane Projects (1997) - both available on the CMOP web site http://www.epa.gov/cmop/resources/reports/finance.html.

  8. Virginia big-eared bats (Corynorhinus townsendii virginianus) roosting in abandoned coal mines in West Virginia

    SciTech Connect

    Johnson, J.B.; Edwards, J.W.; Wood, P.B.

    2005-07-01

    We surveyed bats at 36 abandoned coal mines during summer 2002 and 47 mines during fall 2002 at New River Gorge National River and Gauley River National Recreation Area, WV. During summer, we captured three federally endangered Virginia big-eared bats at two mine entrances, and 25 were captured at 12 mine entrances during fall. These represent the first documented captures of this species at coal mines in West Virginia. Future survey efforts conducted throughout the range of the Virginia big-eared bat should include abandoned coal mines.

  9. Does coal mine dust present a risk for lung cancer. A case-control study of U. S. coal miners

    SciTech Connect

    Ames, R.G.; Amandus, H.; Attfield, M.; Green, F.Y.; Vallyathan, V.

    1983-11-01

    The relationship between the risk of lung cancer mortality and coal mine dust exposure under control by cigarette smoking status is evaluated. Two case-control studies based on 317 white male lung cancer mortality cases are presented. A one-to-one matched-case design allows examination of the risk of coal mine dust exposure and cigarette smoking. A two-to-one matched-case design was employed to examine the lung cancer risk of coal mine dust exposure independent of cigarette smoking. Based upon these data, no evidence of a coal mine dust exposure-lung cancer risk was found, although the expected increased risk for lung cancer in cigarette smokers was observed. There was no evidence of an interactive effect between cigarette smoking and coal mine dust exposure. (13 refs.)

  10. The Methane to Markets Coal Mine Methane Subcommittee meeting

    SciTech Connect

    2008-07-01

    The presentations (overheads/viewgraphs) include: a report from the Administrative Support Group; strategy updates from Australia, India, Italy, Mexico, Nigeria, Poland and the USA; coal mine methane update and IEA's strategy and activities; the power of VAM - technology application update; the emissions trading market; the voluntary emissions reduction market - creating profitable CMM projects in the USA; an Italian perspective towards a zero emission strategies; and the wrap-up and summary.

  11. Remediation of coal mining wastewaters using chitosan microspheres.

    PubMed

    Geremias, R; Pedrosa, R C; Benassi, J C; Fávere, V T; Stolberg, J; Menezes, C T B; Laranjeira, M C M

    2003-12-01

    This study aimed to evaluate the potential use of chitosan and chitosan/poly(vinylalcohol) microspheres incorporating with tetrasulphonated copper (II) phthalocyanine (CTS/PVA/TCP) in the remediation of coal mining wastewaters. The process was monitored by toxicity tests both before and after adsorption treatments with chitosan and microspheres. Physicochemical parameters, including pH and trace-metal concentration, as well as bioindicators of water pollution were used to that end. Wastewater samples colleted from drainage of underground coal mines, decantation pools, and contaminated rivers were scrutinized. Acute toxicity tests were performed using the Brine Shrimp Test (BST) in order to evaluate the remediation efficiency of different treatments. The results showed that the pH of treated wastewater samples were improved to values close to neutrality. Chitosan treatments were also effective in removing trace-metals. Pre-treatment with chitosan followed by microsphere treatment (CTS/PVA/TCP) was more effective in decreasing toxicity than the treatment using only chitosan. This was probably due to the elimination of pollutants other than trace-metals. Thus, the use of chitosan and microspheres is an adequate alternative towards remediation of water pollution from coal mining. PMID:14977147

  12. Forecast of long term coal supply and mining conditions: Model documentation and results

    NASA Technical Reports Server (NTRS)

    1980-01-01

    A coal industry model was developed to support the Jet Propulsion Laboratory in its investigation of advanced underground coal extraction systems. The model documentation includes the programming for the coal mining cost models and an accompanying users' manual, and a guide to reading model output. The methodology used in assembling the transportation, demand, and coal reserve components of the model are also described. Results presented for 1986 and 2000, include projections of coal production patterns and marginal prices, differentiated by coal sulfur content.

  13. A Review of Mine Rescue Ensembles for Underground Coal Mining in the United States

    PubMed Central

    Kilinc, F. Selcen; Monaghan, William D.; Powell, Jeffrey B.

    2016-01-01

    and regulatory agencies have been more restrictive by requiring additional post disaster information regarding atmospheric conditions and other hazards before exposing rescue workers and others in the aftermath of a mine disaster. In light of some of the more recent mine rescuer fatalities such as the Crandall Canyon Mine and Jim Walters Resources in the past years, the direction of reducing exposure is preferred. This review provides a historical perspective on ensembles used during mine rescue operations and summarizes environmental hazards, critical elements of mine rescue ensembles, and key problems with these elements. This study also identifies domains for improved mine rescue ensembles. Furthermore, field observations from several coal mine rescue teams were added to provide the information on the currently used mine rescue ensembles in the U.S. PMID:27065231

  14. Influences of coal mining water irrigation on the maize losses in the Xingdong Mine area, China.

    PubMed

    Sun, Yuzhuang; Ling, Pei; Li, Yanheng; Li, Qingxue; Sun, Quande; Wang, Jinxi

    2014-02-01

    In 2008, a maize underproduction disaster occurred in the Xianyu village after irrigation using the coal mining water from the Xingdong Mine, China. This disaster resulted in about 40 hectare maize underproduction and 20 hectare total loss of the maize yields. In order to study the reason, a total of 25 soil, water and plant samples were taken from the study area. These samples were analysed by inductively coupled plasma mass spectrometry and ion chromatography. The results indicate that the contents of both water-soluble fluorine and total fluorine are very high and resulting of maize underproduction and total loss of production. The possible pollution sources of fluorine in the study area could be from the coal mine water used for irrigation and glass chemical factory near the study area. PMID:23892594

  15. The mine management professions in the twentieth-century Scottish coal mining industry

    SciTech Connect

    Perchard, A.

    2007-07-01

    This book seeks to redress the exclusion of colliery managers and other mining professionals from the history of British, and particularly Scottish, coal industries. This is accomplished by examining these groups within the most crucial period of their ascendancy in the Scottish coal mining industry, 1930-1966. This work seeks to place such persons within their context and to examine their roles, statuses and behaviours through their relationships with employees and the execution of their functions, also examining their terms and conditions of employment, the outlook of their professional associations, and that of their union. Through all this, Dr. Perchard illustrates how this growing consciousness amongst managerial employees in the industry was accompanied by an intense public discussion, within the mining professions, over their future shape, principles and occupational standards.

  16. Influences of coal mining water irrigation on the maize losses in the Xingdong Mine area, China.

    PubMed

    Sun, Yuzhuang; Ling, Pei; Li, Yanheng; Li, Qingxue; Sun, Quande; Wang, Jinxi

    2014-02-01

    In 2008, a maize underproduction disaster occurred in the Xianyu village after irrigation using the coal mining water from the Xingdong Mine, China. This disaster resulted in about 40 hectare maize underproduction and 20 hectare total loss of the maize yields. In order to study the reason, a total of 25 soil, water and plant samples were taken from the study area. These samples were analysed by inductively coupled plasma mass spectrometry and ion chromatography. The results indicate that the contents of both water-soluble fluorine and total fluorine are very high and resulting of maize underproduction and total loss of production. The possible pollution sources of fluorine in the study area could be from the coal mine water used for irrigation and glass chemical factory near the study area.

  17. Mortality in Appalachian coal mining regions: the value of statistical life lost

    SciTech Connect

    Hendryx, M.; Ahern, M.M.

    2009-07-15

    We examined elevated mortality rates in Appalachian coal mining areas for 1979-2005, and estimated the corresponding value of statistical life (VSL) lost relative to the economic benefits of the coal mining industry. We compared age-adjusted mortality rates and socioeconomic conditions across four county groups: Appalachia with high levels of coal mining, Appalachia with lower mining levels, Appalachia without coal mining, and other counties in the nation. We converted mortality estimates to VSL estimates and compared the results with the economic contribution of coal mining. We also conducted a discount analysis to estimate current benefits relative to future mortality costs. The heaviest coal mining areas of Appalachia had the poorest socioeconomic conditions. Before adjusting for covariates, the number of excess annual age-adjusted deaths in coal mining areas ranged from 3,975 to 10,923, depending on years studied and comparison group. Corresponding VSL estimates ranged from $18.563 billion to $84.544 billion, with a point estimate of $50.010 billion, greater than the $8.088 billion economic contribution of coal mining. After adjusting for covariates, the number of excess annual deaths in mining areas ranged from 1,736 to 2,889, and VSL costs continued to exceed the benefits of mining. Discounting VSL costs into the future resulted in excess costs relative to benefits in seven of eight conditions, with a point estimate of $41.846 billion.

  18. The choice of adjustment programmes of China's existing coal mine safety supervision system

    NASA Astrophysics Data System (ADS)

    Liu, Yong-Liang; He, A.-Hong

    2009-07-01

    At present, China's coal mine safety supervision system adopted in the form of management functions, mosts of rights of central government were decentralized to the locals,which unable to carry out effective supervision of coal mines, resulting in frequent accidents. This paper first discussed the status of China's coal mine safety supervision system; then analyzed the problems existing in the supervision system ,based on these, further presented the perfecting and choice of adjustment programmes of China's coal mine safety supervision. Finally, after comparing the adjustment programmes, adopted "adjust the current supervision system, strengthen vertical management mode of the State Administration of Coal Mine Safety", the author tried to put forward some solutions to China's coal mine safety supervision system.

  19. Deformation failure characteristics of coal body and mining induced stress evolution law.

    PubMed

    Wen, Zhijie; Qu, Guanglong; Wen, Jinhao; Shi, Yongkui; Jia, Chuanyang

    2014-01-01

    The results of the interaction between coal failure and mining pressure field evolution during mining are presented. Not only the mechanical model of stope and its relative structure division, but also the failure and behavior characteristic of coal body under different mining stages are built and demonstrated. Namely, the breaking arch and stress arch which influence the mining area are quantified calculated. A systematic method of stress field distribution is worked out. All this indicates that the pore distribution of coal body with different compressed volume has fractal character; it appears to be the linear relationship between propagation range of internal stress field and compressed volume of coal body and nonlinear relationship between the range of outburst coal mass and the number of pores which is influenced by mining pressure. The results provide theory reference for the research on the range of mining-induced stress and broken coal wall. PMID:24967438

  20. Surface movement above an underground coal longwall mine after closure

    NASA Astrophysics Data System (ADS)

    Vervoort, André

    2016-09-01

    The surface movement in an area of about 22 km2 above the underground coal mine of Houthalen was analyzed based on Interferometry with Synthetic Aperture Radar (InSAR) measurements. After its closure in 1992, a residual subsidence was observed over a period of several years, followed by an uplift of the surface above and around the past longwall panels, whereby the rate of movement was, in absolute terms, of the same order for the two types of movements. The processes behind these movements are different. The process of subsidence is caused by the caving of the roof above the mined-out area and is mainly a mechanical stress-deformation process, including time-dependent aspects. However, the process of uplift is most probably caused by the swelling of the clay minerals in the argillaceous rocks in the coal strata after the flooding of the underground workings. Hence, the areas in which there is the greatest risk of damage to the surface infrastructure are not the same for the hazards linked to subsidence and uplift. For example, the zone in which the maximum uplift occurs clearly is at a different location from that of the zone with the maximum residual subsidence. There is no clear sign that the amount of mining underneath affects the residual subsidence, and there is no indication that the process of uplift is linked directly to the mining characteristics. It is more likely that uplift as the result of flooding is initiated at, or close to, the vertical shafts.

  1. Data supplement to: Quality of coal mine drainage to Washington, 1975-77

    USGS Publications Warehouse

    Fuste, Louis A.; Packard, F.A.; Fretwell, M.O.; Garland, D.P.

    1983-01-01

    From December 1975 to September 1977 the U.S. Geological Survey studied coal mine drainage in western Washington to 1) characterize the water quality of drainage from abandoned mines in the 11 coal-bearing areas of the State; 2) examine the water quality effects on a stream receiving drainage from an abandoned coal mine; 3) determine the baseline water-quality conditions at two prospective underground coal mine areas; and 4) recommend procedures for monitoring stream quality in the baseline areas in the event that mining occurs. This report presents physical, chemical, and biological data collected during the study period from Gallop Creek (Whatcom County), Loretta Creek (Skagit County), and Wilkeson Creek (Pierce County) and from 100 abandoned coal mines in western Washington, and from a borehole hydraulic-mining test site. Biological information included taxonomic identifications and counts of benthic invertebrates and periphytic algae. (USGS)

  2. Data supplement to: quality of coal mine drainage in Washington, 1975-77

    SciTech Connect

    Fuste, L.A.; Packard, F.A.; Fretwell, M.O.; Garland, D.P.

    1983-01-01

    The US Geological Survey studied coal-mine drainage in western Washington to (1) characterize the water quality of drainage from abandoned mines in the 11 coal-bearing areas of the state; (2) examine the water-quality effects on a stream receiving drainage from an abandoned coal mine; (3) determine the baseline water-quality conditions at two prospective underground coal-mine areas; and (4) recommend procedures for monitoring stream quality in the baseline areas in the event that mining occurs. This report presents physical, chemical, and biological data collected during the study period from Gallop Creek (Whatcom County), Loretta Creek (Skagit County), and Wilkeson Creek (Pierce County) and from 100 abandoned coal mines in western Washington, and from a borehole hydraulic-mining test site. Biological information included taxonomic identifications and counts of benthic invertebrates and periphytic algae. 8 references, 21 tables, 10 maps.

  3. Brine disposal process for Morcinek coal mine

    SciTech Connect

    Tait, J.H.

    1995-04-01

    This paper describes the work to develop a commercial brine disposal process for the Morcinek mine, located 45 km south of the city of Katowice in Poland. Currently, brine is discharged into the Odra river and methane from the mine is released into the atmosphere. The process would use the released methane and convert a large percentage of the brine into potable water for commercial use. Thus, the proposed process has two environmental benefits. The brine salinity is about 31,100 ppm. Major brine components are Na (10,300 ppm), Ca (1,170 ppm), Mg (460 ppm), Cl (18,500 ppm) and SO{sub 4}{sup 2-} (252 ppm). Present in smaller amounts are K, S, Sr, B, Ba and NO{sub 3}. The process integrates a reverse osmosis (RO) unit and a submerged combustion evaporator. Extensive studies made at the Lawrence Livermore National Laboratory established the pretreatment method of the brine before it enters the RO unit. Without adequate pretreatment, mineral phases in the brine would become super-saturated and would precipitate in the RO unit. The pretreatment consists of first adding sodium carbonate to increase both the pH and the carbonate concentration of the brine. This addition causes precipitation of carbonate solids containing Ca, Mg, Sr, and Ba. After filtration of these precipitates, the fluid is acidified with HCl to prevent precipitation in the RO unit as the brine increases in salinity.

  4. Effect of increasing mining rate on longwall coal mining - Western donbass case study

    NASA Astrophysics Data System (ADS)

    Sdvyzhkova, Olena; Patyńska, Renata

    2016-03-01

    This paper presents the problems associated with the rapid change of the rock stress-strain state in terms of increasing the rate of coal mining. Parameters of the roof collapse are determined depending on the rate of a longwall advancing under conditions of poor rocks. Statistical data are processed to obtain a general trend concerning the mining rate impact on the roof collapse. The statistical strength theory is applied to explain the increase in mined-out space and the size of hanging roof behind a coal face. Numerical simulation is carried out to determine a critical size of mined-out space that provokes a roof collapse. The area of yielded rocks is outlined using the criterion developed taking into account the rate of longwall advancing. A general regularity is obtained to determine the roof collapse parameters. The developed technics gives a possibility to predict the moment of general roof collapse at the initial stage of longwalling to prevent the negative effect of the rapid stress redistribution provoking joints propagation and intensive gas release. The estimation of the rock stress-strain state considering the rate of mining operations can be useful for tasks related to a new technology implementation. The statistical strength theory and failure criterion applied together provides adequate planning of mining activities and the assessment of natural hazards.

  5. Injection of FGD Grout to Abate Acid Mine Drainage in Underground Coal Mines

    SciTech Connect

    Mafi, S.; Damian, M.T.; Senita, R.E.; Jewitt, W.C.; Bair, S.; Chin, Y.C.; Whitlatch, E.; Traina, S.; Wolfe, W.

    1997-07-01

    Acid Mine Drainage (AMD) from abandoned underground coal mines in Ohio is a concern for both residents and regulatory agencies. Effluent from these mines is typically characterized by low pH and high iron and sulfate concentrations and may contaminate local drinking-water supplies and streams. The objective of this project is to demonstrate the technical feasibility of injecting cementitious alkaline materials, such as Flue Gas Desulfurization (FGD) material to mitigate current adverse environmental impacts associated with AMD in a small, abandoned deep mine in Coshocton County Ohio. The Flue Gas Desulfurization material will be provided from American Electric Power`s (AEP) Conesville Plant. It will be injected as a grout mix that will use Fixated Flue Gas Desulfurization material and water. The subject site for this study is located on the border of Coshocton and Muskingum Counties, Ohio, approximately 1.5 miles south-southwest of the town of Wills Creek. The study will be performed at an underground mine designated as Mm-127 in the Ohio Department of Natural Resources register, also known as the Roberts-Dawson Mine. The mine operated in the mid-1950s, during which approximately 2 million cubic feet of coal was removed. Effluent discharging from the abandoned mine entrances has low pH in the range of 2.8-3.0 that drains directly into Wills Creek Lake. The mine covers approximately 14.6 acres. It is estimated that 26,000 tons of FGD material will be provided from AEP`s Conesville Power Plant located approximately 3 miles northwest of the subject site.

  6. Injection of alkaline ashes into underground coal mines for acid mine drainage abatement

    SciTech Connect

    Aljoe, W.W.

    1996-12-31

    The injection of fly ash, scrubber sludge, fluidized-bed combustion (FBC) ash, and other alkaline waste materials into abandoned underground coal mines for acid mine drainage (AMD) abatement has obvious conceptual appeal. This report describes three ongoing projects -- one each in West Virginia, Maryland, and Ohio -- where field demonstrations of the technique are being pursued in cooperative efforts among State and Federal agencies and/or private companies. The West Virginia site produces AMD that is causing the State to incur very high treatment costs and operational problems, especially in the storage and disposal of metal hydroxide sludges that result from treatment. In an attempt to achieve a more cost-effective long-term remediation scheme, the State is working with local coal companies and power generators on a plan to fill part or all of the mine voids with slurries of fly ash and/or FBC ash. At the Maryland site, the goal is to demonstrate the feasibility of completely filling a very small underground mine with an FEC ash slurry. The information gained here will determine whether large-scale AMD remediation can be achieved if deep mine disposal of ash is incorporated into the design of a new FBC power plant. In Ohio, it is believed that sealing and complete flooding of a relatively small mine will be able to curtail its AMD production. In order to accelerate the flooding process and insure that alkaline conditions will prevail in the mine, a waste slurry of calcium hydroxide from a nearby source will be injected into the mine voids in conjunction with mine sealing.

  7. Impact of Coal Mining on Self-Rated Health among Appalachian Residents

    PubMed Central

    Woolley, Shannon M.; Youk, Ada O.; Bear, Todd M.; Balmert, Lauren C.; Talbott, Evelyn O.; Buchanich, Jeanine M.

    2015-01-01

    Objective. To determine the impact of coal mining, measured as the number of coal mining-related facilities nearby one's residence or employment in an occupation directly related to coal mining, on self-rated health in Appalachia. Methods. Unadjusted and adjusted ordinal logistic regression models calculated odds ratio estimates and associated 95% confidence intervals for the probability of having an excellent self-rated health response versus another response. Covariates considered in the analyses included number of coal mining-related facilities nearby one's residence and employment in an occupation directly related to coal mining, as well as potential confounders age, sex, BMI, smoking status, income, and education. Results. The number of coal mining facilities near the respondent's residence was not a statistically significant predictor of self-rated health. Employment in a coal-related occupation was a statistically significant predictor of self-rated health univariably; however, after adjusting for potential confounders, it was no longer a significant predictor. Conclusions. Self-rated health does not seem to be associated with residential proximity to coal mining facilities or employment in the coal industry. Future research should consider additional measures for the impact of coal mining. PMID:26240577

  8. Performance potential of the coal strip mining in the east of Russia

    SciTech Connect

    Cheskidov, V.I.

    2007-07-15

    The potentialities of the leading mining districts in Russia to improve coal production by strip mining are analyzed. The operational issues of the Erunakovskiy (Kuzbass), Kansko-Achinskiy and South Yakutia territorial production complexes are considered.

  9. Injection of FGD grout to abate acid mine drainage in underground coal mines

    SciTech Connect

    Mafi, S.; Damian, M.T.; Baker, R.

    1998-12-31

    The objective of this project is to demonstrate the technical feasibility of injecting cementitious alkaline materials in the form of fixated flue gas desulfurization (FGD) material to reduce and mitigate acid mine drainage in a small abandoned deep mine in Coshocton County, Ohio. The project will attempt to demonstrate if a grout consisting of FGD and water can economically seal off seepage from old mine works and reduce or eliminate acid mine drainage. By attempting to seal and fill primarily the lower, down-dip areas of the mine, the authors will attempt to establish a practical procedure which can be economically applied to larger mines where full scale filling would be cost prohibitive due to the quantities required. In addition to the design of the grout mix and the mine seal, the research project will be studying the following aspects of the use of FGD in this application: Impact of FGD on ground and surface water quality; Effect of AMD chemistry on acid neutralizing capacity of FGD; Weathering Kinetics of FGD grout subject to AMD conditions; Effect on physical properties of FGD caused by AMD weathering; and Sulfur Isotopic Characterization of the site coal, FGD, acid mine water, and groundwater samples.

  10. 30 CFR 921.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 921.764 Section 921.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS... mining operations. Part 764 of this chapter, State Processes for Designating Areas Unsuitable for...

  11. 30 CFR 933.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 933.764 Section 933.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS... mining operations. Part 764 of this chapter, State Processes for Designating Areas Unsuitable for...

  12. 30 CFR 933.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... surface coal mining operations. 933.764 Section 933.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS... mining operations. Part 764 of this chapter, State Processes for Designating Areas Unsuitable for...

  13. 30 CFR 921.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... surface coal mining operations. 921.764 Section 921.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS... mining operations. Part 764 of this chapter, State Processes for Designating Areas Unsuitable for...

  14. 30 CFR 921.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... surface coal mining operations. 921.764 Section 921.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS... mining operations. Part 764 of this chapter, State Processes for Designating Areas Unsuitable for...

  15. 76 FR 2617 - Lowering Miners' Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-14

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Mine...' Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors AGENCY: Mine Safety and.... SUMMARY: The Mine Safety and Health Administration (MSHA) is extending the comment period on the...

  16. Gastric cancer and coal mine dust exposure. A case-control study

    SciTech Connect

    Ames, R.G.

    1983-10-01

    Based on evidence that coal miners have elevated gastric cancer mortality rates, a case-control study was developed to assess the gastric cancer risk of coal mine dust exposure. Forty-six cases of US white male gastric cancer deaths from NIOSH coal miner cohorts were individually matched by age to controls. From these data we show that a statistically elevated gastric cancer risk exists for miners who have prolonged exposure to coal mine dust and prolonged exposure to cigarette smoke. Coal workers' pneumoconiosis, a disease defined in terms of coal dust deposition in the lungs, was not found to be a gastric cancer risk.

  17. Impact of karst water on coal mining in North China

    NASA Astrophysics Data System (ADS)

    Li, Gongyu; Zhou, Wanfang

    2006-01-01

    Coalfields in North China encompass more than ten Provinces. They contain six to seven coal seams in the Permo-Carboniferous strata. The lower three seams account for 37% of the total reserves and are threatened with intrusion of karst water from the underlying Ordovician limestone. Hundreds of water inrush incidences have occurred, in which a large amount of water suddenly flows into tunnels or working faces under high potentiometric pressure. Over 50 mines have been flooded over the last 30 years. Large-scale dewatering or depressurizing of the karst aquifer was considered essential to avoid water inrushes and keep the mines safely operational. This practice, however, has caused sinkholes, dry springs, water supply shortage, and groundwater contamination in the surrounding areas. One alternative water control measure is to make full use of the rock layer between the coal seam and the karst aquifer as a protective barrier to prevent or constrain water flow from the underlying aquifer into the mines. Grouting is effective when the hydrogeological conditions are favorable to this technique. Proper design of the grouting program and experience of the contractor are also important for a successful application.

  18. Exposure to methylene diphenyl diisocyanate in coal mines

    SciTech Connect

    Nemery, B.; Lenaerts, L. . Dept. of Pneumology and of Occupational Medicine Gedilo Industrial Health Services, Hasselt )

    1993-01-30

    The authors report an important application of (MDI) that does not seem to be widely known. The authors have been involved in a compensation dispute concerning a surface worker from a coal mine. This atopic patient had claimed compensation from the Belgian Fund for Occupational Diseases for bronchial asthma which his physician had regarded as occupational, essentially on the basis of a convincing temporal relation between the disease and periods of work. The claim was rejected, because no substantial exposure to a known asthma-causing agent has been identified. At the time of appeal, the patient has quit his work at the coal mine for 2 years. He gave a list of the products that he had frequently loaded on wagons for transportation underground. The source of exposure for the patient, was probably the handling of half-empty and leaking MDI drums coming back from the mine. No precautions seemed to have been taken and the worker's description, corroborated by others, suggested that exposure was at times considerable. On the basis of this information the occupational nature of the patient's asthma was accepted.

  19. Remote sensing of strippable coal reserves and mine inventory in part of the Warrior Coal Field in Alabama

    NASA Technical Reports Server (NTRS)

    Joiner, T. J.; Copeland, C. W., Jr.; Russell, D. D.; Evans, F. E., Jr.; Sapp, C. D.; Boone, P. A.

    1978-01-01

    Methods by which estimates of the remaining reserves of strippable coal in Alabama could be made were developed. Information acquired from NASA's Earth Resources Office was used to analyze and map existing surface mines in a four-quadrangle area in west central Alabama. Using this information and traditional methods for mapping coal reserves, an estimate of remaining strippable reserves was derived. Techniques for the computer analysis of remotely sensed data and other types of available coal data were developed to produce an estimate of strippable coal reserves for a second four-quadrangle area. Both areas lie in the Warrior coal field, the most prolific and active of Alabama's coal fields. They were chosen because of the amount and type of coal mining in the area, their location relative to urban areas, and the amount and availability of base data necessary for this type of study.

  20. Coal mining and the resource community cycle: A longitudinal assessment of the social impacts of the Coppabella coal mine

    SciTech Connect

    Lockie, S.; Franettovich, M.; Petkova-Timmer, V.; Rolfe, J.; Ivanova, G.

    2009-09-15

    Two social impact assessment (SIA) studies of Central Queensland's Coppabella coal mine were undertaken in 2002-2003 and 2006-2007. As ex post studies of actual change, these provide a reference point for predictive assessments of proposed resource extraction projects at other sites, while the longitudinal element added by the second study illustrates how impacts associated with one mine may vary over time due to changing economic and social conditions. It was found that the traditional coupling of local economic vitality and community development to the life cycle of resource projects - the resource community cycle - was mediated by labour recruitment and social infrastructure policies that reduced the emphasis on localised employment and investment strategies. and by the cumulative impacts of multiple mining projects within relative proximity to each other. The resource community cycle was accelerated and local communities forced to consider ways of attracting secondary investment and/or alternative industries early in the operational life of the Coppabella mine in order to secure significant economic benefits and to guard against the erosion of social capital and the ability to cope with future downturns in the mining sector.

  1. Environmental impacts of coal mine and thermal power plant to the surroundings of Barapukuria, Dinajpur, Bangladesh.

    PubMed

    Hossain, Md Nazir; Paul, Shitangsu Kumar; Hasan, Md Muyeed

    2015-04-01

    The study was carried out to analyse the environmental impacts of coal mine and coal-based thermal power plant to the surrounding environment of Barapukuria, Dinajpur. The analyses of coal, water, soil and fly ash were carried out using standard sample testing methods. This study found that coal mining industry and coal-based thermal power plant have brought some environmental and socio-economic challenges to the adjacent areas such as soil, water and air pollution, subsidence of agricultural land and livelihood insecurity of inhabitants. The pH values, heavy metal, organic carbon and exchangeable cations of coal water treated in the farmland soil suggest that coal mining deteriorated the surrounding water and soil quality. The SO4(2-) concentration in water samples was beyond the range of World Health Organisation standard. Some physico-chemical properties such as pH, conductivity, moisture content, bulk density, unburned carbon content, specific gravity, water holding capacity, liquid and plastic limit were investigated on coal fly ash of Barapukuria thermal power plant. Air quality data provided by the Barapukuria Coal Mining Company Limited were contradictory with the result of interview with the miners and local inhabitants. However, coal potentially contributes to the development of economy of Bangladesh but coal mining deteriorates the environment by polluting air, water and soil. In general, this study includes comprehensive baseline data for decision makers to evaluate the feasibility of coal power industry at Barapukuria and the coalmine itself.

  2. Environmental impacts of coal mine and thermal power plant to the surroundings of Barapukuria, Dinajpur, Bangladesh.

    PubMed

    Hossain, Md Nazir; Paul, Shitangsu Kumar; Hasan, Md Muyeed

    2015-04-01

    The study was carried out to analyse the environmental impacts of coal mine and coal-based thermal power plant to the surrounding environment of Barapukuria, Dinajpur. The analyses of coal, water, soil and fly ash were carried out using standard sample testing methods. This study found that coal mining industry and coal-based thermal power plant have brought some environmental and socio-economic challenges to the adjacent areas such as soil, water and air pollution, subsidence of agricultural land and livelihood insecurity of inhabitants. The pH values, heavy metal, organic carbon and exchangeable cations of coal water treated in the farmland soil suggest that coal mining deteriorated the surrounding water and soil quality. The SO4(2-) concentration in water samples was beyond the range of World Health Organisation standard. Some physico-chemical properties such as pH, conductivity, moisture content, bulk density, unburned carbon content, specific gravity, water holding capacity, liquid and plastic limit were investigated on coal fly ash of Barapukuria thermal power plant. Air quality data provided by the Barapukuria Coal Mining Company Limited were contradictory with the result of interview with the miners and local inhabitants. However, coal potentially contributes to the development of economy of Bangladesh but coal mining deteriorates the environment by polluting air, water and soil. In general, this study includes comprehensive baseline data for decision makers to evaluate the feasibility of coal power industry at Barapukuria and the coalmine itself. PMID:25800369

  3. The historical effects of coal mining on the hydrology of Appalachia

    NASA Astrophysics Data System (ADS)

    Ruffing, C. M.; Wreschnig, A. J.; Bain, D. J.; Hermans, C. M.; McCormack, S. M.; Urbanova, T.

    2009-12-01

    The Appalachian Mountains, a region known for its rich coal deposits, is also the headwaters to most important river systems draining to the Atlantic Ocean. Coal mined from the Appalachian’s was fundamental to the industrialization of the United States during the nineteenth and early twentieth centuries. Deforestation and waste disposal associated with deep mining were common throughout the region. Anecdotal evidence suggests that historic coal mining had a significant influence on the region’s hydrology. There is a growing body of literature examining the effects of contemporary mining activity on hydrologic systems, but few studies have quantified historic impacts. This study examines the extent of coal mining activity in Appalachia during the first era of increased coal production (1865 - 1929). Areas within the region most affected by mining activity were identified using dates of published mine maps and coal production data for the region. Intensively mined areas were paired with relatively unaffected stream basins to address the influence of mining on hydrology, and particularly legacy effects. This study will inform future studies exploring common mine-related environmental issues in Appalachia such as acid mine drainage and subsidence.

  4. Mapping rehabilitated coal mine soils in South Africa using GPR

    NASA Astrophysics Data System (ADS)

    Paterson, D. G.

    2000-04-01

    Open-cast mining, involving severe disturbance, of shallow coal deposits has taken place in Mpumalanga, South Africa for some time with little control until recently. Current legislation requires soil investigations. The soils are agriculturally productive and merit effective rehabilitation, but several problems in this process can occur, leading to drastically reduced agricultural productivity. GPR investigation of these mine soils can help with the mapping of the depth to spoil after rehabilitation, on a significantly more cost-effective basis than traditional point observations. A field trial was carried out as part of a research project at Kleinkopje Colliery where it was shown that, despite wet conditions due to irrigation, GPR was able to map spoil depth around six times faster than augering. There is substantial scope in South Africa for GPR to make a significant contribution in this field.

  5. 78 FR 64537 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Coal Mine...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-29

    ... information about this ICR, see the related notice published in the Federal Register on June 14, 2013 (78 FR...; Coal Mine Rescue Teams: Arrangements for Emergency Medical Assistance and Transportation for Injured... information collection request (ICR) titled, ``Coal Mine Rescue Teams: Arrangements for Emergency...

  6. 76 FR 35968 - Maintenance of Incombustible Content of Rock Dust in Underground Coal Mines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-21

    ... Dust in Underground Coal Mines (75 FR 57849), September 23, 2010. Department of Labor, Mine Safety and... Safety and Health Administration 30 CFR Part 75 RIN 1219-AB76 Maintenance of Incombustible Content of... incombustible content of combined coal dust, rock dust, and other dust to at least 80 percent in...

  7. 75 FR 64411 - Lowering Miners' Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-19

    ... Verification) (65 FR 42122, July 7, 2000, and 68 FR 10784, March 6, 2003); (3) ``Determination of Concentration of Respirable Coal Mine Dust'' (Single Sample) (65 FR 42068, July 7, 2000, and 68 FR 10940 March 6, 2003); and (4) ``Respirable Coal Mine Dust: Continuous Personal Dust Monitor (CPDM)'' (74 FR...

  8. 20 CFR 726.1 - Statutory insurance requirements for coal mine operators.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 4 2013-04-01 2013-04-01 false Statutory insurance requirements for coal mine operators. 726.1 Section 726.1 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG...

  9. 20 CFR 726.1 - Statutory insurance requirements for coal mine operators.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 20 Employees' Benefits 4 2012-04-01 2012-04-01 false Statutory insurance requirements for coal mine operators. 726.1 Section 726.1 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG...

  10. 20 CFR 726.1 - Statutory insurance requirements for coal mine operators.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false Statutory insurance requirements for coal mine operators. 726.1 Section 726.1 Employees' Benefits EMPLOYMENT STANDARDS ADMINISTRATION, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG...

  11. 20 CFR 726.1 - Statutory insurance requirements for coal mine operators.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 20 Employees' Benefits 4 2014-04-01 2014-04-01 false Statutory insurance requirements for coal mine operators. 726.1 Section 726.1 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG...

  12. 20 CFR 726.203 - Federal Coal Mine Health and Safety Act endorsement.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 20 Employees' Benefits 4 2012-04-01 2012-04-01 false Federal Coal Mine Health and Safety Act endorsement. 726.203 Section 726.203 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG...

  13. 20 CFR 726.203 - Federal Coal Mine Health and Safety Act endorsement.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 20 Employees' Benefits 4 2014-04-01 2014-04-01 false Federal Coal Mine Health and Safety Act endorsement. 726.203 Section 726.203 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG...

  14. 20 CFR 726.203 - Federal Coal Mine Health and Safety Act endorsement.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 4 2013-04-01 2013-04-01 false Federal Coal Mine Health and Safety Act endorsement. 726.203 Section 726.203 Employees' Benefits OFFICE OF WORKERS' COMPENSATION PROGRAMS, DEPARTMENT OF LABOR FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, AS AMENDED BLACK LUNG...

  15. 30 CFR 903.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE ARIZONA § 903.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, applies to surface coal mining... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Areas designated unsuitable for surface...

  16. 30 CFR 922.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE MICHIGAN § 922.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas designated unsuitable for surface...

  17. 30 CFR 939.761 - Areas designated unsuitable for surface coal mining by Act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE RHODE ISLAND § 939.761 Areas designated unsuitable for surface coal mining by Act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas designated unsuitable for surface...

  18. 30 CFR 947.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE WASHINGTON § 947.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas designated unsuitable for surface...

  19. 30 CFR 937.761 - Areas designated unsuitable for surface coal mining by Act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE OREGON § 937.761 Areas designated unsuitable for surface coal mining by Act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining and... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas designated unsuitable for surface...

  20. 30 CFR 912.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE IDAHO § 912.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining and... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas designated unsuitable for surface...

  1. 30 CFR 921.761 - Areas designated unsuitable for surface coal mining by Act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE MASSACHUSETTS § 921.761 Areas designated unsuitable for surface coal mining by Act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas designated unsuitable for surface...

  2. 30 CFR 942.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE TENNESSEE § 942.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas designated unsuitable for surface...

  3. 30 CFR 903.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE ARIZONA § 903.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, applies to surface coal mining... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas designated unsuitable for surface...

  4. 30 CFR 947.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE WASHINGTON § 947.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Areas designated unsuitable for surface...

  5. 30 CFR 941.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE SOUTH DAKOTA § 941.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Areas designated unsuitable for surface...

  6. 30 CFR 905.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE CALIFORNIA § 905.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Areas designated unsuitable for surface...

  7. A Manual of Competency Matched Instructional Materials for Developing Coal Mining Curricula.

    ERIC Educational Resources Information Center

    Katz, Douglas S.; Oglesby, Elizabeth H.

    To assist in the development of secondary level coal mining curricula, this report identifies sixty-four competencies considered by coal mining companies and instructors to be of major or moderate importance. Also, four tables are used to aid curriculum planners. Table 1 contains occupational competencies ranked in importance for the secondary…

  8. 30 CFR 939.761 - Areas designated unsuitable for surface coal mining by Act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE RHODE ISLAND § 939.761 Areas designated unsuitable for surface coal mining by Act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Areas designated unsuitable for surface...

  9. 30 CFR 942.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE TENNESSEE § 942.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Areas designated unsuitable for surface...

  10. 30 CFR 910.761 - Areas designated unsuitable for surface coal mining by Act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE GEORGIA § 910.761 Areas designated unsuitable for surface coal mining by Act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas designated unsuitable for surface...

  11. 30 CFR 912.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE IDAHO § 912.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining and... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Areas designated unsuitable for surface...

  12. 30 CFR 937.761 - Areas designated unsuitable for surface coal mining by Act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE OREGON § 937.761 Areas designated unsuitable for surface coal mining by Act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining and... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Areas designated unsuitable for surface...

  13. 30 CFR 910.761 - Areas designated unsuitable for surface coal mining by Act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE GEORGIA § 910.761 Areas designated unsuitable for surface coal mining by Act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Areas designated unsuitable for surface...

  14. 30 CFR 922.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE MICHIGAN § 922.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Areas designated unsuitable for surface...

  15. 30 CFR 921.761 - Areas designated unsuitable for surface coal mining by Act of Congress.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... WITHIN EACH STATE MASSACHUSETTS § 921.761 Areas designated unsuitable for surface coal mining by Act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Areas designated unsuitable for surface...

  16. 30 CFR 941.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE SOUTH DAKOTA § 941.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas designated unsuitable for surface...

  17. 30 CFR 905.761 - Areas designated unsuitable for surface coal mining by act of Congress.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... WITHIN EACH STATE CALIFORNIA § 905.761 Areas designated unsuitable for surface coal mining by act of Congress. Part 761 of this chapter, Areas Designated by Act of Congress, shall apply to surface coal mining... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Areas designated unsuitable for surface...

  18. Coal mine wastes. (Latest citations from the NTIS database). Published Search

    SciTech Connect

    Not Available

    1993-04-01

    The bibliography contains citations concerning the characterization, environmental aspects, and engineering studies of coal mining refuse. Topics include disposal strategies, materials usage, and revegetation and reclamation programs. Appropriate legislation, and surveys performed at specific mining sites are also presented. Water pollution aspects of coal wastes are not covered in this report. (Contains 250 citations and includes a subject term index and title list.)

  19. Study results on geotechnological processes of mining flat thick coal seams with top-coal drawing in face 21-1-5 of “Olzherasskaya” mine

    NASA Astrophysics Data System (ADS)

    Senkus, V. V.; Ermakov, A. Yu

    2016-10-01

    In the paper the modes of hydraulic props of powered support are considered; the regularities of their loading are established that allows the powered support for thick flat seams mining with top-coal drawing to be chosen.

  20. CAPTURE AND USE OF COAL MINE VENTILATION AIR METHANE

    SciTech Connect

    Deborah A. Kosmack

    2003-10-01

    This is the second semi-annual Technical Progress report under the subject agreement. During the second six months of the project the following items were accomplished: (1) the detailed engineering design was started by MEGTEC Systems, (2) a pre-investigation meeting was held with Mine Safety and Health Administration (MSHA) to discuss the allegations in the 101(c) Petition for Modification of Application of Mandatory Safety Standard, (3) the 101(c) Petition for Modification was withdrawn, although negotiations continue with MSHA, and (4) detailed engineering was started by CONSOL Energy. These aspects of the project, as well as progress on public communications are discussed in detail in this report.

  1. Effect of Water Invasion on Outburst Predictive Index of Low Rank Coals in Dalong Mine

    PubMed Central

    Jiang, Jingyu; Cheng, Yuanping; Mou, Junhui; Jin, Kan; Cui, Jie

    2015-01-01

    To improve the coal permeability and outburst prevention, coal seam water injection and a series of outburst prevention measures were tested in outburst coal mines. These methods have become important technologies used for coal and gas outburst prevention and control by increasing the external moisture of coal or decreasing the stress of coal seam and changing the coal pore structure and gas desorption speed. In addition, techniques have had a significant impact on the gas extraction and outburst prevention indicators of coal seams. Globally, low rank coals reservoirs account for nearly half of hidden coal reserves and the most obvious feature of low rank coal is the high natural moisture content. Moisture will restrain the gas desorption and will affect the gas extraction and accuracy of the outburst prediction of coals. To study the influence of injected water on methane desorption dynamic characteristics and the outburst predictive index of coal, coal samples were collected from the Dalong Mine. The methane adsorption/desorption test was conducted on coal samples under conditions of different injected water contents. Selective analysis assessed the variations of the gas desorption quantities and the outburst prediction index (coal cutting desorption index). Adsorption tests indicated that the Langmuir volume of the Dalong coal sample is ~40.26 m3/t, indicating a strong gas adsorption ability. With the increase of injected water content, the gas desorption amount of the coal samples decreased under the same pressure and temperature. Higher moisture content lowered the accumulation desorption quantity after 120 minutes. The gas desorption volumes and moisture content conformed to a logarithmic relationship. After moisture correction, we obtained the long-flame coal outburst prediction (cutting desorption) index critical value. This value can provide a theoretical basis for outburst prediction and prevention of low rank coal mines and similar occurrence conditions

  2. Effect of Water Invasion on Outburst Predictive Index of Low Rank Coals in Dalong Mine.

    PubMed

    Jiang, Jingyu; Cheng, Yuanping; Mou, Junhui; Jin, Kan; Cui, Jie

    2015-01-01

    To improve the coal permeability and outburst prevention, coal seam water injection and a series of outburst prevention measures were tested in outburst coal mines. These methods have become important technologies used for coal and gas outburst prevention and control by increasing the external moisture of coal or decreasing the stress of coal seam and changing the coal pore structure and gas desorption speed. In addition, techniques have had a significant impact on the gas extraction and outburst prevention indicators of coal seams. Globally, low rank coals reservoirs account for nearly half of hidden coal reserves and the most obvious feature of low rank coal is the high natural moisture content. Moisture will restrain the gas desorption and will affect the gas extraction and accuracy of the outburst prediction of coals. To study the influence of injected water on methane desorption dynamic characteristics and the outburst predictive index of coal, coal samples were collected from the Dalong Mine. The methane adsorption/desorption test was conducted on coal samples under conditions of different injected water contents. Selective analysis assessed the variations of the gas desorption quantities and the outburst prediction index (coal cutting desorption index). Adsorption tests indicated that the Langmuir volume of the Dalong coal sample is ~40.26 m3/t, indicating a strong gas adsorption ability. With the increase of injected water content, the gas desorption amount of the coal samples decreased under the same pressure and temperature. Higher moisture content lowered the accumulation desorption quantity after 120 minutes. The gas desorption volumes and moisture content conformed to a logarithmic relationship. After moisture correction, we obtained the long-flame coal outburst prediction (cutting desorption) index critical value. This value can provide a theoretical basis for outburst prediction and prevention of low rank coal mines and similar occurrence conditions

  3. Effect of Water Invasion on Outburst Predictive Index of Low Rank Coals in Dalong Mine.

    PubMed

    Jiang, Jingyu; Cheng, Yuanping; Mou, Junhui; Jin, Kan; Cui, Jie

    2015-01-01

    To improve the coal permeability and outburst prevention, coal seam water injection and a series of outburst prevention measures were tested in outburst coal mines. These methods have become important technologies used for coal and gas outburst prevention and control by increasing the external moisture of coal or decreasing the stress of coal seam and changing the coal pore structure and gas desorption speed. In addition, techniques have had a significant impact on the gas extraction and outburst prevention indicators of coal seams. Globally, low rank coals reservoirs account for nearly half of hidden coal reserves and the most obvious feature of low rank coal is the high natural moisture content. Moisture will restrain the gas desorption and will affect the gas extraction and accuracy of the outburst prediction of coals. To study the influence of injected water on methane desorption dynamic characteristics and the outburst predictive index of coal, coal samples were collected from the Dalong Mine. The methane adsorption/desorption test was conducted on coal samples under conditions of different injected water contents. Selective analysis assessed the variations of the gas desorption quantities and the outburst prediction index (coal cutting desorption index). Adsorption tests indicated that the Langmuir volume of the Dalong coal sample is ~40.26 m3/t, indicating a strong gas adsorption ability. With the increase of injected water content, the gas desorption amount of the coal samples decreased under the same pressure and temperature. Higher moisture content lowered the accumulation desorption quantity after 120 minutes. The gas desorption volumes and moisture content conformed to a logarithmic relationship. After moisture correction, we obtained the long-flame coal outburst prediction (cutting desorption) index critical value. This value can provide a theoretical basis for outburst prediction and prevention of low rank coal mines and similar occurrence conditions

  4. Site-specific study on stabilization of acid-generating mine tailings using coal fly ash

    SciTech Connect

    Shang, J.Q.; Wang, H.L.; Kovac, V.; Fyfe, J.

    2006-03-15

    A site-specific study on stabilizing acid-generating mine tailings from Sudbury Mine using a coal fly ash from Nanticoke Generating Station is presented in this paper. The objective of the study is to evaluate the feasibility of codisposal of the fly ash and mine tailings to reduce environmental impacts of Sudbury tailings disposal sites. The study includes three phases, i.e., characterization of the mine tailings, and coal fly ash, oxidation tests on the mine tailings and kinetic column permeation tests. The results of the experiments indicate that when permeated with acid mine drainage, the hydraulic conductivity of Nanticoke coal fly ash decreased more than three orders of magnitude (from 1 x 10{sup -6} to 1 x 10{sup -9} cm/s), mainly due to chemical reactions between the ash solids and acid mine drainage. Furthermore, the hydraulic gradient required for acid mine drainage to break through the coal fly ash is increased up to ten times (from 17 to 150) as compared with that for water. The results also show that the leachate from coal fly ash neutralizes the acidic pore fluid of mine tailings. The concentrations of trace elements in effluents from all kinetic column permeation tests indicated that coplacement of coal fly ash with mine tailings has the benefit of immobilizing trace elements, especially heavy metals. All regulated element concentrations from effluent during testing are well below the leachate quality criteria set by the local regulatory authority.

  5. Coal mining, social injustice and health: a universal conflict of power and priorities.

    PubMed

    Morrice, Emily; Colagiuri, Ruth

    2013-01-01

    Given the current insatiable demand for coal to build and fuel the world's burgeoning cities the debate about mining-related social, environmental and health injustices remains eminently salient. Furthermore, the core issues appear universally consistent. This paper combines the theoretical base for defining these injustices with reports in the international health literature about the impact of coal mining on local communities. It explores and analyses mechanisms of coal mining related injustice, conflicting priorities and power asymmetries between political and industry interests versus inhabitants of mining communities, and asks what would be required for considerations of health to take precedence over wealth.

  6. Fine coal recovery at the Wabash mine circuit modifications and additions

    SciTech Connect

    Shackleford, M.

    1996-09-01

    During the summer of 1993, Cyprus AMAX coal company commissioned a recently completed 1,500 tons per hour (tph) preparation plant at the Wabash mine near Keensburg, Illinois. Completion and operation of this new plant allow the washing of Wabash Mine`s total coal production. From 1984 to mid 1993, a smaller 250 tph heavy media coarse coal wash plant was used. The new plant allows the mine to assist its primary utility customer to meet air quality emission limitations for their electric power generating facility.

  7. Coal-Mac, Inc. Phoenix No. 1 mine provides wildlife haven. 2007 Wildlife West Virginia Award

    SciTech Connect

    Skinner, A.

    2007-07-15

    Coal Mac, Inc.'s Harless Wood Industrial Park off Holden 22 Mines Road in Logan Country, West Virginia is an award-winning reclamation site in the mountains frequented by geese, wild turkey, deer and black bears. Orchard grass and rye is a temporary cover for the timothy, clover and other seedlings. The area was mined several years ago. Some 40,000-50,000 tons of coal per month are surfaced mined with the current permit that takes in 1,500-2,000 acres. After removing the coal, valleys are backfilled as part of the mining and reclamation plan. 10 photos.

  8. Regional coal-mining employment in the United States from 1985 to 2000

    SciTech Connect

    Reed, J.D.; Hoag, J.H.

    1984-07-01

    Mining employment projections for 15 coal-producing regions in the US indicate that substantial regional reallocation of employment will occur over the time frame considered. The East and Midwest are expected to be net losers of employment, while a major portion of the Appalachian coal region and the West will show considerable growth. Further analysis to separate the percentage of change in employment into the components of change show major dislocations in the coal-mining industry. Historically, mining employment response to such dislocation has been sluggish. If major migration of mining employment does not take place, there will be significant unemployment in the East and Midwest. 2 figures, 5 tables.

  9. Coal mining, social injustice and health: a universal conflict of power and priorities.

    PubMed

    Morrice, Emily; Colagiuri, Ruth

    2013-01-01

    Given the current insatiable demand for coal to build and fuel the world's burgeoning cities the debate about mining-related social, environmental and health injustices remains eminently salient. Furthermore, the core issues appear universally consistent. This paper combines the theoretical base for defining these injustices with reports in the international health literature about the impact of coal mining on local communities. It explores and analyses mechanisms of coal mining related injustice, conflicting priorities and power asymmetries between political and industry interests versus inhabitants of mining communities, and asks what would be required for considerations of health to take precedence over wealth. PMID:23201912

  10. Socuy coal mine. Phase 1. Engineering services. Final report. Volume 1. Export trade information

    SciTech Connect

    1997-06-01

    The report presents a five-year mine plan, conceptual life-of-mine sequence, and a detailed cost estimate for the Socuy Coal Mine in Venezuela. Volume 1 contains the Phase I - Engineering Services Final Report and is divided into: Executive Summary; (1) Introduction; (2) Data Review; (3) Mining Criteria; (4) Geology; (5) Geotechnical; (6) Groundwater Hydrology; (7) Surface Water Hydrology; (8) Socuy Mine Plan; (9) Socuy Cost Estimate; (10) References; and Appendix A: Quality Summary Report.

  11. 75 FR 18500 - Guidance on Improving EPA Review of Appalachian Surface Coal Mining Operations under the Clean...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-12

    ... environmental review of Appalachian surface coal mining operations under the Clean Water Act, National... AGENCY Guidance on Improving EPA Review of Appalachian Surface Coal Mining Operations under the Clean..., titled Improving EPA Review of Appalachian Surface Coal Mining Operations under the Clean Water...

  12. 30 CFR 905.800 - Bond and insurance requirements for surface coal mining and reclamation operations under...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... coal mining and reclamation operations under regulatory programs. 905.800 Section 905.800 Mineral... requirements for surface coal mining and reclamation operations under regulatory programs. (a) Part 800 of this chapter, Bond and Insurance Requirements for Surface Coal Mining and Reclamation Operations...

  13. 30 CFR 761.200 - Interpretative rule related to subsidence due to underground coal mining in areas designated by...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... to underground coal mining in areas designated by Act of Congress. 761.200 Section 761.200 Mineral... to underground coal mining in areas designated by Act of Congress. OSM has adopted the following... or limited. Subsidence due to underground coal mining is not included in the definition of...

  14. 30 CFR 905.800 - Bond and insurance requirements for surface coal mining and reclamation operations under...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... coal mining and reclamation operations under regulatory programs. 905.800 Section 905.800 Mineral... requirements for surface coal mining and reclamation operations under regulatory programs. (a) Part 800 of this chapter, Bond and Insurance Requirements for Surface Coal Mining and Reclamation Operations...

  15. 30 CFR 761.200 - Interpretative rule related to subsidence due to underground coal mining in areas designated by...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... to underground coal mining in areas designated by Act of Congress. 761.200 Section 761.200 Mineral... to underground coal mining in areas designated by Act of Congress. OSM has adopted the following... or limited. Subsidence due to underground coal mining is not included in the definition of...

  16. 30 CFR 785.21 - Coal preparation plants not located within the permit area of a mine.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... permit area of a mine. 785.21 Section 785.21 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND....21 Coal preparation plants not located within the permit area of a mine. (a) This section applies to any person who operates or intends to operate a coal preparation plant in connection with a coal...

  17. Coal-spoil and ground-water chemical data from two coal mines; Hanna Basin and Powder River basin, Wyoming

    USGS Publications Warehouse

    Larson, L.R.

    1988-01-01

    Data are presented describing chemical and mineralogical composition of spoil material and chemical quality of groundwater at 2 Wyoming mine sites. Samples were collected at Medicine Bow-Seminoe Number 1 mining area in the Hanna basin and at the Cordero Mine in the Powder River basin. The data collected from these sites, along with similar data from other coal-mining states in the West, are used to evaluate methods used in predicting post-mining groundwater quality. The data include mineral-composition analyses, paste-extract analyses, and sulfur-forms analyses of coal spoil, chemical analyses of water from batch-mixing experiments; and analyses of water samples collected from wells in the coal aquifers and from wells in the saturated spoils. (USGS)

  18. Potential effects of surface coal mining on the hydrology of the Bloomfield coal tract, Dawson County, eastern Montana

    USGS Publications Warehouse

    Cannon, M.R.

    1983-01-01

    The Bloomfield coal tract in Dawson County, Montana, contains about 420 million tons of recoverable coal reserves within the Pust coal bed. About 136 million tons of coal within the tract is Federally owned, of which 98 million tons has been identified for potential lease sale. A hydrologic study has been conducted in the potential lease area to describe existing hydrologic systems and to assess potential impacts of surface coal mining on local water resources. Shallow ground-water resources in the tract are limited to sandstone and coal aquifers in the Tongue River Member of the Fort Union Formation (Paleocene age). These shallow aquifers have small values of hydraulic conductivity; yields to wells generally range from 1 to 10 gallons per minute. Water from shallow sandstone and coal aquifers is used primarily for livestock watering and domestic supply. Chemical analyses indicate that water from most shallow aquifers is dominated by calcium and magnesium cations and sulfate and bicarbonate anions. Surface-water resources in the tract consist primarily of small reservoirs used for livestock watering. All streams in the tract are ephemeral, making them unreliable as a source of livestock water. Mining of the Pust coal bed would cause certain impacts on local water resources. About 15 stock and domestic wells and 13 small stock reservoirs would be destroyed by mining. Shallow coal and sandstone aquifers would be permanently removed from parts of the tract. Leaching of soluble salts from mine spoils may cause a long-term degradation of the quality of water in shallow aquifers in or near the coal tract. Impacts on the local water resources could be mitigated by development of alternative ground-water supplies from deeper aquifers in the Fort Union and in the Upper Cretaceous Hell Creek and Fox Hills Formations. Reservoirs destroyed by mining could be reconstructed during mine reclamation. (USGS)

  19. Potential effects of surface coal mining on the hydrology of the Cook Creek area, Ashland coal field, southeastern Montana

    USGS Publications Warehouse

    Cannon, M.R.

    1982-01-01

    The Cook Creek area of the Ashland coal field contains large reserves of Federally owned coal that have been identified for potential lease sale. A hydrologic study has been conducted in the potential lease area to describe existing hydrologic systems and to assess potential impacts of surface coal mining on local water resources. Hydrogeologic data collected from wells, springs, and drill holes indicate that shallow aquifers exist within the Tongue River Member of the Fort Union Formation (Paleocene age) and within valley alluvium (Pleistocene and Holocene age). Shallow aquifers within the Tonge River Member include coal beds, clinker, and lenses of sandstone and siltstone. The Knobloch coal bed, a principal shallow aquifer used for livestock watering in the area, averages about 55 feet in thickness and is completely saturated throughout most of its extent. Coarse alluvial deposits are the most productive aquifers and are a major source of stock water in the Cook Creek basin. Surface-water resources are limited to the upstream reach part of Cook Creek, which flows intermittently. The downstream reach part of Cook Creek, plus all other small drainages that originate in the study area, are ephemeral. Mining of the Knoblock and Sawyer coal beds would remove two alluvial springs, one bedrock spring, and two wells, which are all used for watering of livestock. The potentiometric surface within the Knobloch coal aquifer and the alluvial aquifer in the downstream part of the Cook Creek basin would be lowered during mining. Lowered water levels in these aquifers might substantially affect water levels in five wells outside the mine boundary. After mining, the alluvial aquifer downgradient from the mine area might show a long-term degradation in water quality as a result of leaching of soluble salts from overburden materials used to backfill mine pits. Although mining would alter the existing hydrologic systems and remove several springs and shallow wells, alternative

  20. Analysis of Extreme Danger Problems associated with abandoned coal-mine lands in southwestern Indiana

    SciTech Connect

    Elbert, J.A.

    1987-01-01

    The Surface Mining Control and Reclamation Act of 1977 created revenues for the reclamation of Abandoned Mine Land (AML) problems. The data in this study were obtained from the National Inventory Update of Abandoned Mine Lands for the State of Indiana, completed in July 1986. The study area included the coal-producing region of Indiana, approximately 6500 square miles; specifically, those fifteen counties in Southwestern Indiana where there were Extreme Danger Problems resulting from coal mining. This study analyzed the Extreme Danger Problems associated with Abandoned Coal Mine Lands in Southwestern Indiana. Identifying the statistical relationships between the total occurrences of Extreme Danger Problems in Indiana and selected coal-mine-related variables was the first step. Multiple Regression Analysis was the statistical technique employed in this research. Thirty-seven statistically significant relationships for various sub-groups resulted. Seven of these subgroups had explained variances of greater than 80%.

  1. Revegetation of Alaskan coal mine spoils. Progress report

    SciTech Connect

    Mitchell, W W; Mitchell, G A; McKendrick, J D

    1980-05-23

    Activities initiated after the start of the revegetation project on Alaskan coal mine spoils on September 1, 1979 have consisted mainly of some fall plantings (dormant seedings) and soil and coal spoil samplings and analyses. Because of the late summer start for the project, only a limited amount of field work could be initiated in plant material studies. This consisted of a fall planting at the Usibelli mine site at Healy in interior Alaska. The planting was intended to test the efficacy of seeding in the frost period following the growing season, requiring the seed to remain dormant over winter and to germinate when conditions become favorable in late spring. It also was intended as a comparison of a number of different grasses. Thirty entries were seeded in three replications. Fifteen species of grasses and a clover were included in the trial. The site provided for the trial was on overburden material along a streambed. Among the entries were eight cultivars of introduced grasses, five cultivars of native Alaskan germplasm, one introduced clover cultivar, and sixteen experimental grasses mainly of Alaskan origin.

  2. The 2006-2011 world outlook for coal mining

    SciTech Connect

    Park, P.M.

    2006-10-15

    This study covers the world outlook for coal mining across more than 200 countries. For each year reported, estimates are given for the latent demand, or potential industry earnings (P.I.E.), for the country in question (in millions of U.S. dollars), the percent share the country is of the region and of the globe. These comparative benchmarks allow the reader to quickly gauge a country against others. Using econometric models which project fundamental economic dynamics within each country and across countries, latent demand estimates are created. This report does not discuss the specific players in the market serving the latent demand, nor specific details at the product level. The study, therefore, is strategic in nature, taking an aggregate and long-run view, irrespective of the players or products involved. This study does not report actual sales data. This study gives, however, estimates for the worldwide latent demand, or the P.I.E., for coal mining. It also shows how the P.I.E. is divided across the world's regional and national markets. For each country, estimates are given of how the P.I.E. grows over time (positive or negative growth).

  3. From explosions to black lung: A history of efforts to control coal mine dust

    SciTech Connect

    Weeks, J.L. )

    1993-01-01

    Highlights in the history of efforts to prevent occupational lung disease among coal miners in the United States are reviewed. The Federal Coal Mine Health and Safety Act of 1969 is summarized, and the sources and effects of its provisions to prevent coal workers' pneumoconiosis are examined. Descriptions follow of the identification of coal workers' pneumoconiosis as a disease, identification of respirable coal mine dust as its cause, and establishment and enforcement of an exposure limit. The development of prevention efforts focusing on surveillance of both exposure and outcome and of enforcement of dust control methods is examined. 67 refs.

  4. Development and Dissemination of a Manual for Developing Coal Mining Curricula. Final Report.

    ERIC Educational Resources Information Center

    Oglesby, Elizabeth H.; Katz, D. S.

    This report describes and summarizes the purposes, activities, major findings, and recommendations of three coal-related study reports: (1) An Assessment of Employment and Training needs for Coal and Gasification Occupations, (2) A Manual for Competency-Matched Instructional Resources for Developing Coal Mining Curricula, and (3) The Preparation…

  5. Proceedings, 95th regular meeting: The Rocky Mountain Coal Mining Institute

    SciTech Connect

    Finnie, D.G.

    1999-07-01

    In addition to the nine convention papers published in these proceedings, information is given on the membership and organization of the Rocky Mountain Coal Mining Institute. The papers are concerned with the economics and management of coal companies, occupational safety of their employees, public anxiety of the environmental impacts of surface mining, and contracting for mining equipment maintenance. Papers have been processed separately for inclusion on the data base.

  6. Development of a Universal Safety Behavior Management System for Coal Mine Workers

    PubMed Central

    LI, Jizu; LI, Yuejiao; LIU, Xiaoguang

    2015-01-01

    Background: In China, over 80% of all work-related deaths in the mining industry occur in coal mines and human factors constitute 85% of the direct causes of coal mine accidents, which indicates that significant shortcomings currently exist in the safety behavior management of Chinese coal mine workers. We aimed to verify the impact of human psychological behavior in coal mine accidents systematically through experimental study, theoretical analysis and management application. Methods: Four test instruments (Sensory and cognitive capacity test, Sixteen-Personal Factor Questionnaire, Symptom Checklist 90 Questionnaire and the supervisors’ evaluation) were employed from November 2013 to June 2014 to identify unsafe behavior factors, the self-established Questionnaire of Safety Behavior Norms (QSBN) was also used to propose the safety behavior countermeasures of coal mine employees. Results: The mental health of most coal mine workers’ is relatively poor. The sensory and cognitive capacity of those in different work posts varies greatly, as does the sense of responsibility. Workers are susceptible to external influences, and score low in site management. When the 16-PF and SCL-90 sensory and cognitive assessments were combined, the psychological index predictive power was greatest for estimating sense of efficiency and degree of satisfaction in internal evaluations, while at the same time lowest for estimating control of introversion-extroversion and stress character. Conclusion: The psychological indicators can predict part of employee safety behavior, and assist a coal mine enterprise to recruit staff, develop occupational safety norms and improve the working environment. PMID:26258088

  7. Health effects of coal mining and combustion: carcinogens and cofactors.

    PubMed Central

    Falk, H L; Jurgelski, W

    1979-01-01

    Some polynuclear aromatics (PNA) have been found to be potent carcinogens for all tissues and organs of experimental animals that have been exposed to them, but different dose levels are needed for these effects. They have been known for decades to cause cancer at the site of application but also at certain sites distant from the area of contact. Although some hydrocarbons are potent and complete carcinogens, the majority of related hydrocarbons was originally found to be inactive. Since they generally appear together, it was important to know more about their interaction, particularly whether they would synergize, or antagonize. The polycyclic hydrocarbons have been studied by subcutaneous injection, where they prove very potent carcinogens. They are also very active on the skin of mice where they produce cancer on prolonged application. Inhalation studies, require larger doses yielded negative results until particulate matter was introduced which facilitated the development of lung tumors. Although iron oxide dust was used initially, other dusts were also capable of enhancing the response of the tissue to benzo(a)pyrene carcinogenesis. This point is of importance, particularly since the inhalation of PNA in situations of air pollution or coal mining involves particulates, although of a different type. Soot is not a homogenous substance and several factors determine its properties. Soots will lose some of the absorbed chemicals during their residence in air, but they retain their PNAs for long periods of time when they reach the soil. The carcinogenicity of PNAs in the adsorbed state may be completely absent, depending on particle size of the soot and availability of eluting capability of the tissues or cells in contact with the soot. Whenever the carcinogenic polynuclear aromatics can be eluted they will be active in producing cancer if their residence is adequate. There seems to be no reason to assume that a large increase in coal combustion in the future will

  8. Selenium transformation in coal mine spoils: Its environmental impact assessment

    SciTech Connect

    Harness, J.; Atalay, A.; Koll, K.J.; Zhang, H.; Maggon, D.

    1991-12-31

    The objective of this program was to conduct an environmental impact assessment study for selenium from coal mine spoils. The use of in-situ lysimetry to predict selenium speciation, transformation, and mobility under natural conditions was evaluated. The scope of the study was to construct and test field-scale lysimeter and laboratory mini-column to assess mobility and speciation of selenium in coal mine overburden and soil systems; to conduct soil and groundwater sampling throughout the state of Oklahoma for an overall environmental impact assessment of selenium; and to conduct an in-depth literature review on the solubility, speciation, mobility, and toxicity of selenium from various sources. Groundwater and surface soil samples were also collected from each county in Oklahoma. Data collected from the lysimeter study indicated that selenium in the overburden of the abandoned mine site was mainly found in the selenite form. The amount of selenite found was too low and immobile to be of concern to the environment. The spoil had equilibrated long enough (over 50 years) that most of the soluble forms of selenium have already been lost. Examination of the overburden indicated the presence of pyrite crystals that precipitated over time. The laboratory mini-column study indicated that selenite is quite immobile and remained on the overburden material even after leaching with dilute acid. Data from groundwater samples indicated that based on the current permissible level for selenium in groundwater (0.01 mg Se/L), Oklahoma groundwater is widely contaminated with the element. However, according to the new regulation (0.05 mg Se/L), which is to be promulgated in 1992, only 9 of the 77 counties in the state exceed the limit.

  9. Plan for injection of coal combustion byproducts into the Omega Mine for the reduction of acid mine drainage

    SciTech Connect

    Gray, T.A.; Moran, T.C.; Broschart, D.W.; Smith, G.A.

    1997-12-31

    The Omega Mine Complex is located outside of Morgantown, West Virginia. The mine is in the Upper Freeport Coal, an acid-producing coal seam. The coal was mined in a manner that has resulted in acid mine drainage (AMD) discharges at multiple points. During the 1990`s, the West Virginia Division of Environmental Protection (WVDEP) assumed responsibility for operating a collection and treatment system for the AMD. Collection and treatment costs are approximately $300,000 per year. An innovative procedure of injecting grout into the mine working to reduce AMD and the resulting treatment costs is proposed. The procedure involves injecting grout mixes composed primarily of coal combustion byproducts (CCB`s) and water, with a small quantity of cement. The intention of the injection program is to fill the mine voids in the north lobe of the Omega Mine (an area where most of the acidity is believed to be generated) with the grout, thus reducing the contact of air and water with potentially acidic material. The grout mix design consists of an approximate 1:1 ratio of fly ash to byproducts from fluidized bed combustion. Approximately 100 gallons of water per cubic yard of grout is used to help achieve flowability. Observation of the mine workings via subsurface borings and downhole video camera operation confirmed that first-mined areas were generally open while second-mined areas were generally partially collapsed. The injection program was developed to account for this by utilizing closer injection hole spacing in second-mined areas. Administration of a construction contract for the project is on-going through WVDEP`s Abandoned Mine Lands (AML) program. Funding for the project is coming from the WVDEP; Allegheny Power; Consol, Inc.; United States Office of Surface Mining Reclamation and Enforcement (OSMRE); Anker Energy Corporation; and the Electric Power Research Institute.

  10. 30 CFR 942.20 - Approval of Tennessee reclamation plan for lands and waters affected by past coal mining.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... lands and waters affected by past coal mining. 942.20 Section 942.20 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING... affected by past coal mining. The Tennessee Reclamation Plan, as submitted on March 24, 1982, is...

  11. 30 CFR 942.20 - Approval of Tennessee reclamation plan for lands and waters affected by past coal mining.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... lands and waters affected by past coal mining. 942.20 Section 942.20 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING... affected by past coal mining. The Tennessee Reclamation Plan, as submitted on March 24, 1982, is...

  12. 77 FR 50165 - Escape and Evacuation Plans for Surface Coal Mines, Surface Facilities and Surface Work Areas of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-20

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Mine Safety and Health Administration Escape and Evacuation Plans for Surface Coal Mines, Surface Facilities and Surface Work Areas of Underground Coal Mines AGENCY: Mine Safety and Health Administration,...

  13. Underground Coal Mining: Relationship between Coal Dust Levels and Pneumoconiosis, in Two Regions of Colombia, 2014.

    PubMed

    Torres Rey, Carlos Humberto; Ibañez Pinilla, Milciades; Briceño Ayala, Leonardo; Checa Guerrero, Diana Milena; Morgan Torres, Gloria; Groot de Restrepo, Helena; Varona Uribe, Marcela

    2015-01-01

    In Colombia, coal miner pneumoconiosis is considered a public health problem due to its irreversibility, high cost on diagnosis, and lack of data related to its prevalence in the country. Therefore, a cross-sectional study was carried out in order to determine the prevalence of pneumoconiosis in underground coal mining workers in two regions of Colombia. The results showed a 35.9% prevalence of pneumoconiosis in the study group (42.3% in region 1 and 29.9% in region 2). An association was found between a radiologic diagnosis of pneumoconiosis and a medium risk level of exposure to carbon dust (OR: 2.901, 95% CI: 0.937, 8.982), medium size companies (OR: 2.301, 95% CI: 1.260-4.201), length of mining work greater than 25 years (OR: 3.222, 95% CI: 1.806-5.748), and a history of smoking for more than one year (OR: 1.479, 95% CI: 0.938-2.334). These results establish the need to generate an intervention strategy aimed at preventing the identified factors, as well as a timely identification and effective treatment of pneumoconiosis in coal miners, in which the commitment of the General Health and Social Security System and the workers compensation system is ensured.

  14. Underground Coal Mining: Relationship between Coal Dust Levels and Pneumoconiosis, in Two Regions of Colombia, 2014

    PubMed Central

    Torres Rey, Carlos Humberto; Ibañez Pinilla, Milciades; Briceño Ayala, Leonardo; Checa Guerrero, Diana Milena; Morgan Torres, Gloria; Groot de Restrepo, Helena; Varona Uribe, Marcela

    2015-01-01

    In Colombia, coal miner pneumoconiosis is considered a public health problem due to its irreversibility, high cost on diagnosis, and lack of data related to its prevalence in the country. Therefore, a cross-sectional study was carried out in order to determine the prevalence of pneumoconiosis in underground coal mining workers in two regions of Colombia. The results showed a 35.9% prevalence of pneumoconiosis in the study group (42.3% in region 1 and 29.9% in region 2). An association was found between a radiologic diagnosis of pneumoconiosis and a medium risk level of exposure to carbon dust (OR: 2.901, 95% CI: 0.937, 8.982), medium size companies (OR: 2.301, 95% CI: 1.260–4.201), length of mining work greater than 25 years (OR: 3.222, 95% CI: 1.806–5.748), and a history of smoking for more than one year (OR: 1.479, 95% CI: 0.938–2.334). These results establish the need to generate an intervention strategy aimed at preventing the identified factors, as well as a timely identification and effective treatment of pneumoconiosis in coal miners, in which the commitment of the General Health and Social Security System and the workers compensation system is ensured. PMID:26366418

  15. 30 CFR 910.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Process for designating areas unsuitable for surface coal mining operations. 910.764 Section 910.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE GEORGIA § 910.764...

  16. 30 CFR 905.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Process for designating areas unsuitable for surface coal mining operations. 905.764 Section 905.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE CALIFORNIA §...

  17. 30 CFR 937.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Process for designating areas unsuitable for surface coal mining operations. 937.764 Section 937.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE OREGON § 937.764...

  18. 30 CFR 912.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Process for designating areas unsuitable for surface coal mining operations. 912.764 Section 912.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE IDAHO § 912.764...

  19. 30 CFR 921.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Process for designating areas unsuitable for surface coal mining operations. 921.764 Section 921.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE MASSACHUSETTS §...

  20. 30 CFR 922.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Process for designating areas unsuitable for surface coal mining operations. 922.764 Section 922.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE MICHIGAN §...

  1. 30 CFR 939.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Process for designating areas unsuitable for surface coal mining operations. 939.764 Section 939.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE RHODE ISLAND §...

  2. 30 CFR 947.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Process for designating areas unsuitable for surface coal mining operations. 947.764 Section 947.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE WASHINGTON §...

  3. 30 CFR 903.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Process for designating areas unsuitable for surface coal mining operations. 903.764 Section 903.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE ARIZONA § 903.764...

  4. 30 CFR 933.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Process for designating areas unsuitable for surface coal mining operations. 933.764 Section 933.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE NORTH CAROLINA §...

  5. 30 CFR 941.764 - Process for designating areas unsuitable for surface coal mining operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Process for designating areas unsuitable for surface coal mining operations. 941.764 Section 941.764 Mineral Resources OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT, DEPARTMENT OF THE INTERIOR PROGRAMS FOR THE CONDUCT OF SURFACE MINING OPERATIONS WITHIN EACH STATE SOUTH DAKOTA §...

  6. Public drinking water violations in mountaintop coal mining areas of West Virginia, USA

    EPA Science Inventory

    Mountaintop coal mining (MTM) has adverse impacts on surface and ground water quality. Instances of domestic well water contamination from mining activities have been documented, but possible mining impacts on public water treatment systems are unknown. We analyzed the U.S. Envir...

  7. 78 FR 25308 - Proposed Collection; Comment Request; Coal Mine Dust Sampling Devices

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-30

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Mine Safety and Health Administration Proposed Collection; Comment Request; Coal Mine Dust Sampling Devices AGENCY: Mine Safety and Health Administration, Labor. ACTION: 60-Day Notice. SUMMARY: The Department...

  8. Optimizing wireless LAN for longwall coal mine automation

    SciTech Connect

    Hargrave, C.O.; Ralston, J.C.; Hainsworth, D.W.

    2007-01-15

    A significant development in underground longwall coal mining automation has been achieved with the successful implementation of wireless LAN (WLAN) technology for communication on a longwall shearer. WIreless-FIdelity (Wi-Fi) was selected to meet the bandwidth requirements of the underground data network, and several configurations were installed on operating longwalls to evaluate their performance. Although these efforts demonstrated the feasibility of using WLAN technology in longwall operation, it was clear that new research and development was required in order to establish optimal full-face coverage. By undertaking an accurate characterization of the target environment, it has been possible to achieve great improvements in WLAN performance over a nominal Wi-Fi installation. This paper discusses the impact of Fresnel zone obstructions and multipath effects on radio frequency propagation and reports an optimal antenna and system configuration. Many of the lessons learned in the longwall case are immediately applicable to other underground mining operations, particularly wherever there is a high degree of obstruction from mining equipment.

  9. Reclamation challenges at Usibelli Coal Mine in Healy, Alaska

    SciTech Connect

    Jackson, L.P.

    1998-12-31

    Successful reclamation in the Interior of Alaska requires planning in order to avoid major setbacks. Usibelli Coal Mine is located at a North Latitude of approximately 64 degrees. Temperature extremes in the Interior of Alaska range from a high of 90 degrees Fahrenheit to a low of minus 60 degrees Fahrenheit. The challenges in this sub-arctic climate are many. Several unique reclamation challenges are present due to the cold climate. Discontinuous permafrost is prevalent on north facing slopes. This presents stability problems if placed in inappropriate locations. Very detailed planning is required to assure that no stability problems occur. The construction of drainage channels in ice-rich permafrost areas also requires extra care to assure that water flows along the surface rather than down into the spoil. Mineral topsoil is often not present on the areas to be mined. Often non-salvageable organic permafrost soils are present. These require special handling and must be isolated to avoid stability problems. Since the ground is frozen for 7--8 months a year the reestablishment of vegetation requires a very aggressive planting schedule. Grass seed is applied by fixed wing aircraft and shrubs are planted from locally collected seed. By planning properly prior to mining successful reclamation can take place in the Interior of Alaska.

  10. Potential effects of surface coal mining on the hydrology of the Little Bear Creek area, Moorhead coal field, southeastern Montana

    USGS Publications Warehouse

    McClymonds, N.E.

    1986-01-01

    The Little Bear Creek area of the Moorhead Coal Field, 27 miles south of Ashland, Montana, contains large reserves of Federally owned coal that have been identified for potential lease sale. A hydrologic study was conducted in the area to describe existing hydrologic system and to assess potential effects of surface mining on local water resources. Hydrologic data collected from private wells, observation wells, test holes and springs indicate that the aquifers are coal and sandstone beds in the upper part of the Tongue River Member, Fort Union Formation (Paleocene age), and sand and gravel layers of valley alluvium (Pleistocene and Holocene age). Surface water is available from ephemeral flow along stretches of the main streams, and from stock ponds throughout the area. Mining the Anderson and Dietz coal beds would destroy one stock well and several stock ponds, would possibly interfere with the flow of one spring, and would lower the potentiometric surface within the coal and sandstone aquifers. The alluvial aquifer beneath Little Bear Creek and Davidson Draw would be removed at the mine site, as would sandstone and coal aquifers above the mine floor. Although mining would alter existing hydrologic systems, alternative water supplies are available. Planned structuring of the spoils and reconstruction of the alluvial aquifers could minimize downstream water-quality degradation. (USGS)

  11. 30 CFR 800.17 - Bonding requirements for underground coal mines and long-term coal-related surface facilities and...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 3 2011-07-01 2011-07-01 false Bonding requirements for underground coal mines and long-term coal-related surface facilities and structures. 800.17 Section 800.17 Mineral Resources... REQUIREMENTS FOR SURFACE COAL MINING AND RECLAMATION OPERATIONS BOND AND INSURANCE REQUIREMENTS FOR...

  12. 30 CFR 800.17 - Bonding requirements for underground coal mines and long-term coal-related surface facilities and...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 3 2013-07-01 2013-07-01 false Bonding requirements for underground coal mines and long-term coal-related surface facilities and structures. 800.17 Section 800.17 Mineral Resources... REQUIREMENTS FOR SURFACE COAL MINING AND RECLAMATION OPERATIONS BOND AND INSURANCE REQUIREMENTS FOR...

  13. 30 CFR 800.17 - Bonding requirements for underground coal mines and long-term coal-related surface facilities and...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 3 2010-07-01 2010-07-01 false Bonding requirements for underground coal mines and long-term coal-related surface facilities and structures. 800.17 Section 800.17 Mineral Resources... REQUIREMENTS FOR SURFACE COAL MINING AND RECLAMATION OPERATIONS BOND AND INSURANCE REQUIREMENTS FOR...

  14. 30 CFR 800.17 - Bonding requirements for underground coal mines and long-term coal-related surface facilities and...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 3 2012-07-01 2012-07-01 false Bonding requirements for underground coal mines and long-term coal-related surface facilities and structures. 800.17 Section 800.17 Mineral Resources... REQUIREMENTS FOR SURFACE COAL MINING AND RECLAMATION OPERATIONS BOND AND INSURANCE REQUIREMENTS FOR...

  15. 30 CFR 800.17 - Bonding requirements for underground coal mines and long-term coal-related surface facilities and...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 3 2014-07-01 2014-07-01 false Bonding requirements for underground coal mines and long-term coal-related surface facilities and structures. 800.17 Section 800.17 Mineral Resources... REQUIREMENTS FOR SURFACE COAL MINING AND RECLAMATION OPERATIONS BOND AND INSURANCE REQUIREMENTS FOR...

  16. Soil quality index for evaluation of reclaimed coal mine spoil.

    PubMed

    Mukhopadhyay, S; Masto, R E; Yadav, A; George, J; Ram, L C; Shukla, S P

    2016-01-15

    Success in the remediation of mine spoil depends largely on the selection of appropriate tree species. The impacts of remediation on mine soil quality cannot be sufficiently assessed by individual soil properties. However, combination of soil properties into an integrated soil quality index provides a more holistic status of reclamation potentials of tree species. Remediation potentials of four tree species (Acacia auriculiformis, Cassia siamea, Dalbergia sissoo, and Leucaena leucocephala) were studied on reclaimed coal mine overburden dumps of Jharia coalfield, Dhanbad, India. Soil samples were collected under the canopies of the tree species. Comparative studies on the properties of soils in the reclaimed and the reference sites showed improvements in soil quality parameters of the reclaimed site: coarse fraction (-20.4%), bulk density (-12.8%), water holding capacity (+0.92%), pH (+25.4%), EC (+2.9%), cation exchange capacity (+46.6%), organic carbon (+91.5%), N (+60.6%), P (+113%), K (+19.9%), Ca (+49.6%), Mg (+12.2%), Na (+19.6%), S (+46.7%), total polycyclic aromatic hydrocarbons (-71.4%), dehydrogenase activity (+197%), and microbial biomass carbon (+115%). Principal component analysis (PCA) was used to identify key mine soil quality indicators to develop a soil quality index (SQI). Selected indicators include: coarse fraction, pH, EC, soil organic carbon, P, Ca, S, and dehydrogenase activity. The indicator values were converted into a unitless score (0-1.00) and integrated into SQI. The calculated SQI was significantly (P<0.001) correlated with tree biomass and canopy cover. Reclaimed site has 52-93% higher SQI compared to the reference site. Higher SQI values were obtained for sites reclaimed with D.sissoo (+93.1%) and C.siamea (+86.4%). PMID:26524272

  17. Soil quality index for evaluation of reclaimed coal mine spoil.

    PubMed

    Mukhopadhyay, S; Masto, R E; Yadav, A; George, J; Ram, L C; Shukla, S P

    2016-01-15

    Success in the remediation of mine spoil depends largely on the selection of appropriate tree species. The impacts of remediation on mine soil quality cannot be sufficiently assessed by individual soil properties. However, combination of soil properties into an integrated soil quality index provides a more holistic status of reclamation potentials of tree species. Remediation potentials of four tree species (Acacia auriculiformis, Cassia siamea, Dalbergia sissoo, and Leucaena leucocephala) were studied on reclaimed coal mine overburden dumps of Jharia coalfield, Dhanbad, India. Soil samples were collected under the canopies of the tree species. Comparative studies on the properties of soils in the reclaimed and the reference sites showed improvements in soil quality parameters of the reclaimed site: coarse fraction (-20.4%), bulk density (-12.8%), water holding capacity (+0.92%), pH (+25.4%), EC (+2.9%), cation exchange capacity (+46.6%), organic carbon (+91.5%), N (+60.6%), P (+113%), K (+19.9%), Ca (+49.6%), Mg (+12.2%), Na (+19.6%), S (+46.7%), total polycyclic aromatic hydrocarbons (-71.4%), dehydrogenase activity (+197%), and microbial biomass carbon (+115%). Principal component analysis (PCA) was used to identify key mine soil quality indicators to develop a soil quality index (SQI). Selected indicators include: coarse fraction, pH, EC, soil organic carbon, P, Ca, S, and dehydrogenase activity. The indicator values were converted into a unitless score (0-1.00) and integrated into SQI. The calculated SQI was significantly (P<0.001) correlated with tree biomass and canopy cover. Reclaimed site has 52-93% higher SQI compared to the reference site. Higher SQI values were obtained for sites reclaimed with D.sissoo (+93.1%) and C.siamea (+86.4%).

  18. Evaluation of remediation of coal mining wastewater by chitosan microspheres using biomarkers

    SciTech Connect

    Benassi, J.C.; Laus, R.; Geremias, R.; Lima, P.L.; Menezes, C.T.B.; Laranjeira, M.C.M.; Wilhelm, D.; Favere, V.T.; Pedrosa, R.C.

    2006-11-15

    The aim of this work was to evaluate the remediation of mining wastewater effluents by chitosan microspheres using biomarkers of exposure and effect. DNA damage (Comet assay) and several biomarkers of oxidative stress, such as lipoperoxidation levels (TBARS), superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferase (GST) activities, and contents of reduced glutathione (GSH), were measured in blood and liver of tilapia (Oreochromis niloticus) exposed for 7, 15, and 30 days to dechlorinated tap water, 10% coal mining wastewater (CMW), and coal mining wastewater treated with chitosan microspheres (RCM). The results obtained indicated that the use of oxidative stress biomarkers were useful tools for the toxicity evaluation of coal mining effluents and also suggest that chitosan microspheres may be used as an alternative approach for remediation of coal mining wastewaters.

  19. Geological features that contribute to ground control problems in underground coal mines. Information circular/1993

    SciTech Connect

    Shea-Albin, V.R.

    1993-01-01

    A major portion of ground control problems encountered in underground coal mines can be attributed to geologic features in the strata surrounding the extracted coal seam. The U.S. Bureau of Mines has compiled information from several sources on the geological features that contribute to ground control problems in underground coal mines. The compilation includes sedimentary features such as paleochannels, crevasse splays, clastic dikes, mold and cast structures, concretions, lithologic factors, and structural features, such as folds, fractures, joints, cleat, and faults. The compiled information will aid in identifying the features, predicting their occurrence in advance of mining, and controlling or minimizing roof failure when these features are encountered in an underground coal mine.

  20. How many mountains can we mine? Assessing the regional degradation of Central Appalachian rivers by surface coal mining.

    PubMed

    Bernhardt, Emily S; Lutz, Brian D; King, Ryan S; Fay, John P; Carter, Catherine E; Helton, Ashley M; Campagna, David; Amos, John

    2012-08-01

    Surface coal mining is the dominant form of land cover change in Central Appalachia, yet the extent to which surface coal mine runoff is polluting regional rivers is currently unknown. We mapped surface mining from 1976 to 2005 for a 19,581 km(2) area of southern West Virginia and linked these maps with water quality and biological data for 223 streams. The extent of surface mining within catchments is highly correlated with the ionic strength and sulfate concentrations of receiving streams. Generalized additive models were used to estimate the amount of watershed mining, stream ionic strength, or sulfate concentrations beyond which biological impairment (based on state biocriteria) is likely. We find this threshold is reached once surface coal mines occupy >5.4% of their contributing watershed area, ionic strength exceeds 308 μS cm(-1), or sulfate concentrations exceed 50 mg L(-1). Significant losses of many intolerant macroinvertebrate taxa occur when as little as 2.2% of contributing catchments are mined. As of 2005, 5% of the land area of southern WV was converted to surface mines, 6% of regional streams were buried in valley fills, and 22% of the regional stream network length drained watersheds with >5.4% of their surface area converted to mines. PMID:22788537

  1. How many mountains can we mine? Assessing the regional degradation of Central Appalachian rivers by surface coal mining.

    PubMed

    Bernhardt, Emily S; Lutz, Brian D; King, Ryan S; Fay, John P; Carter, Catherine E; Helton, Ashley M; Campagna, David; Amos, John

    2012-08-01

    Surface coal mining is the dominant form of land cover change in Central Appalachia, yet the extent to which surface coal mine runoff is polluting regional rivers is currently unknown. We mapped surface mining from 1976 to 2005 for a 19,581 km(2) area of southern West Virginia and linked these maps with water quality and biological data for 223 streams. The extent of surface mining within catchments is highly correlated with the ionic strength and sulfate concentrations of receiving streams. Generalized additive models were used to estimate the amount of watershed mining, stream ionic strength, or sulfate concentrations beyond which biological impairment (based on state biocriteria) is likely. We find this threshold is reached once surface coal mines occupy >5.4% of their contributing watershed area, ionic strength exceeds 308 μS cm(-1), or sulfate concentrations exceed 50 mg L(-1). Significant losses of many intolerant macroinvertebrate taxa occur when as little as 2.2% of contributing catchments are mined. As of 2005, 5% of the land area of southern WV was converted to surface mines, 6% of regional streams were buried in valley fills, and 22% of the regional stream network length drained watersheds with >5.4% of their surface area converted to mines.

  2. New software for visualizing 3D geological data in coal mines

    NASA Astrophysics Data System (ADS)

    Lee, Sungjae; Choi, Yosoon

    2015-04-01

    This study developed new software to visualize 3D geological data in coal mines. The Visualization Tool Kit (VTK) library and Visual Basic.NET 2010 were used to implement the software. The software consists of several modules providing functionalities: (1) importing and editing borehole data; (2) modelling of coal seams in 3D; (3) modelling of coal properties using 3D ordinary Kriging method; (4) calculating economical values of 3D blocks; (5) pit boundary optimization for identifying economical coal reserves based on the Lerchs-Grosmann algorithm; and (6) visualizing 3D geological, geometrical and economical data. The software has been applied to a small-scale open-pit coal mine in Indonesia revealed that it can provide useful information supporting the planning and design of open-pit coal mines.

  3. The mining and burning of coal: effects on health and the environment.

    PubMed

    Castleden, William M; Shearman, David; Crisp, George; Finch, Philip

    2011-09-19

    Australia's coal conundrum is that all political parties say they are concerned about climate change while sanctioning an unprecedented expansion of coalmining and coal seam gas extraction in Australia. Australia's coal contributes to climate change and its global health impacts. Each phase of coal's lifecycle (mining, disposal of contaminated water and tailings, transportation, washing, combustion, and disposing of postcombustion wastes) produces pollutants that affect human health. Communities in which coalmining or burning occurs have been shown to suffer significant health impacts. The health and climate costs of coal are unseen, and when costs to health systems are included, coal is an expensive fuel.

  4. The mining and burning of coal: effects on health and the environment.

    PubMed

    Castleden, William M; Shearman, David; Crisp, George; Finch, Philip

    2011-09-19

    Australia's coal conundrum is that all political parties say they are concerned about climate change while sanctioning an unprecedented expansion of coalmining and coal seam gas extraction in Australia. Australia's coal contributes to climate change and its global health impacts. Each phase of coal's lifecycle (mining, disposal of contaminated water and tailings, transportation, washing, combustion, and disposing of postcombustion wastes) produces pollutants that affect human health. Communities in which coalmining or burning occurs have been shown to suffer significant health impacts. The health and climate costs of coal are unseen, and when costs to health systems are included, coal is an expensive fuel. PMID:21929497

  5. Development of a Solid Oxide Fuel Cell for the utilization of coal mine gas

    NASA Astrophysics Data System (ADS)

    Groß, B.; Blum, L.; de Haart, L. G. J.; Dengel, A.

    Apart from natural gas there is another important natural source of methane. The so-called coal mine gas is a by-product of the geochemical process of the carbonization of sediments from marsh woods of the Earth's Carboniferous Period. Methane evaporates from the coal and has to be removed out of the active mines where it represents one of the main safety risks. Methane also evaporates in abandoned coal mines. In the federal state Saarland in Germany exists above ground a more than 110 km pipeline for the drained coal mine gas from 12 different sources. The content of methane varies between 25 and 90%, the oxygen content (from air) is in the range up to 10%. This wide range or variation, respectively, of fuel and oxygen content, causes a lot of problems for the use in conventional engines. Therefore the company Evonik New Energies GmbH is interested in using SOFC with coal mine gas as efficient as possible to produce electric power. For that purpose at Forschungszentrum Jülich the available SOFC technology was adapted to the use with coal mine gas and a test facility was designed to operate an SOFC stack (approximately 2 kW electrical power output) together with a pre-reformer. This paper presents the results of the coal mine gas analysis and the effect on the pre-reformer and the fuel cell. The composition of the coal mine gas was determined by means of micro-gas chromatography. The results obtained from preliminary tests using synthetic and real coal mine gas on the pre-reformer and on the fuel cell are discussed.

  6. Integrated Positioning for Coal Mining Machinery in Enclosed Underground Mine Based on SINS/WSN

    PubMed Central

    Hui, Jing; Wu, Lei; Yan, Wenxu; Zhou, Lijuan

    2014-01-01

    To realize dynamic positioning of the shearer, a new method based on SINS/WSN is studied in this paper. Firstly, the shearer movement model is built and running regularity of the shearer in coal mining face has been mastered. Secondly, as external calibration of SINS using GPS is infeasible in enclosed underground mine, WSN positioning strategy is proposed to eliminate accumulative error produced by SINS; then the corresponding coupling model is established. Finally, positioning performance is analyzed by simulation and experiment. Results show that attitude angle and position of the shearer can be real-timely tracked by integrated positioning strategy based on SINS/WSN, and positioning precision meet the demand of actual working condition. PMID:24574891

  7. Integrated positioning for coal mining machinery in enclosed underground mine based on SINS/WSN.

    PubMed

    Fan, Qigao; Li, Wei; Hui, Jing; Wu, Lei; Yu, Zhenzhong; Yan, Wenxu; Zhou, Lijuan

    2014-01-01

    To realize dynamic positioning of the shearer, a new method based on SINS/WSN is studied in this paper. Firstly, the shearer movement model is built and running regularity of the shearer in coal mining face has been mastered. Secondly, as external calibration of SINS using GPS is infeasible in enclosed underground mine, WSN positioning strategy is proposed to eliminate accumulative error produced by SINS; then the corresponding coupling model is established. Finally, positioning performance is analyzed by simulation and experiment. Results show that attitude angle and position of the shearer can be real-timely tracked by integrated positioning strategy based on SINS/WSN, and positioning precision meet the demand of actual working condition.

  8. Numerical Investigation of the Dynamic Mechanical State of a Coal Pillar During Longwall Mining Panel Extraction

    NASA Astrophysics Data System (ADS)

    Wang, Hongwei; Jiang, Yaodong; Zhao, Yixin; Zhu, Jie; Liu, Shuai

    2013-09-01

    This study presents a numerical investigation on the dynamic mechanical state of a coal pillar and the assessment of the coal bump risk during extraction using the longwall mining method. The present research indicates that there is an intact core, even when the peak pillar strength has been exceeded under uniaxial compression. This central portion of the coal pillar plays a significant role in its loading capacity. In this study, the intact core of the coal pillar is defined as an elastic core. Based on the geological conditions of a typical longwall panel from the Tangshan coal mine in the City of Tangshan, China, a numerical fast Lagrangian analysis of continua in three dimensions (FLAC3D) model was created to understand the relationship between the volume of the elastic core in a coal pillar and the vertical stress, which is considered to be an important precursor to the development of a coal bump. The numerical results suggest that, the wider the coal pillar, the greater the volume of the elastic core. Therefore, a coal pillar with large width may form a large elastic core as the panel is mined, and the vertical stress is expected to be greater in magnitude. Because of the high stresses and the associated stored elastic energy, the risk of coal bumps in a coal pillar with large width is greater than for a coal pillar with small width. The results of the model also predict that the peak abutment stress occurs near the intersection between the mining face and the roadways at a distance of 7.5 m from the mining face. It is revealed that the bump-prone zones around the longwall panel are within 7-10 m ahead of the mining face and near the edge of the roadway during panel extraction.

  9. Cardowan coal mine explosion: experience of a mass burns incident.

    PubMed

    Allister, C; Hamilton, G M

    1983-08-01

    A coal mine explosion 1700 feet (516 m) underground and two miles (3.2 km) from the pit head resulted in 40 casualties. Two hours elapsed between the explosion and the arrival of patients at hospital. Six patients suffered mechanical injuries, only one of which was life threatening. Thirty six suffered burns; in 18 over 15% of the total body surface area was affected. Nineteen patients had a mild respiratory upset requiring oxygen treatment. The average length of inpatient stay in those admitted was 24 days. Early assessment and treatment in the accident and emergency department was relatively simple because of the large proportion of burn injuries. Lack of communication between site and hospital made administration of the disaster difficult. PMID:6409324

  10. Safety Psychology Applicating on Coal Mine Safety Management Based on Information System

    NASA Astrophysics Data System (ADS)

    Hou, Baoyue; Chen, Fei

    In recent years, with the increase of intensity of coal mining, a great number of major accidents happen frequently, the reason mostly due to human factors, but human's unsafely behavior are affected by insecurity mental control. In order to reduce accidents, and to improve safety management, with the help of application security psychology, we analyse the cause of insecurity psychological factors from human perception, from personality development, from motivation incentive, from reward and punishment mechanism, and from security aspects of mental training , and put forward countermeasures to promote coal mine safety production,and to provide information for coal mining to improve the level of safety management.

  11. The current situation of impact of coal mine developing on environment in China and government proposal

    SciTech Connect

    Lu Yang

    2005-07-01

    Current environmental problems caused by coal mining in China, the importance of management of the environment, impact of coal mining on land and water resources, and upcoming coal development are discussed. It is suggested that the government should act in two ways: take responsibility for management of reclamation of mines existing before 1986, and set up mechanisms to protect the environment, starting with the publishing of relevant laws and regulations. Methods for solving environmental issues include: prepare a practical plan, establish an environmental control fund, establish a special fund to protect the environment, and develop new ways to combine protection of the biological environment and land reclamation. 5 refs., 3 tabs.

  12. Impact of weighted density distribution function features on land mine detection using hand-held units

    NASA Astrophysics Data System (ADS)

    Stanley, Ronald J.; Somanchi, Satish; Gader, Paul D.

    2002-08-01

    Landmine detection using metal detector (MD) and ground penetrating radar (GPR) sensors in hand-held units is a difficult problem. Detection difficulties arise due to: 1) the varying composition and type of metal in landmines, 2) the time-varying nature of background and 3) the variation in height and velocity of the hand-held unit in data measurement. In prior research, spatially distributed MD features were explored for differentiating landmine signatures from background and non-landmine objects. These features were computed based on correlating sequences of MD energy values with six weighted density distribution functions. In this research the effectiveness of these features to detect landmines of varying metal composition and type is investigated. Experimental results are presented from statistical analysis for feature assessment. Preliminary experimental results are also presented for evaluating the impact on MD feature calculations from varying height and sweep rate of the hand-held unit for data acquisition.

  13. Coal mining research - growth in energy demand can be met while reducing injuries and fatalities

    SciTech Connect

    Marchant, W.N.

    1987-04-01

    The paper considers the federal government's role, principally the US Bureau of Mines in meeting the growth of demand for coal while reducing the social and economic costs attributed to injuries and fatalities in underground mining. The USA's energy picture and projections for the future are discussed including the distribution of its reserves and the projected role of coal in the energy and economics of the nation's future. The Bureau of Mine's research program in underground mining is considered in relation to the problems of health and safety. Topics covered are: future projections; meeting the demand for coal; safe mining research including mine environmental monitoring, adaptive signal discrimination, expert systems and robotics; and collective creativity.

  14. Identifying Catchment-Scale Predictors of Coal Mining Impacts on New Zealand Stream Communities

    NASA Astrophysics Data System (ADS)

    Clapcott, Joanne E.; Goodwin, Eric O.; Harding, Jon S.

    2016-03-01

    Coal mining activities can have severe and long-term impacts on freshwater ecosystems. At the individual stream scale, these impacts have been well studied; however, few attempts have been made to determine the predictors of mine impacts at a regional scale. We investigated whether catchment-scale measures of mining impacts could be used to predict biological responses. We collated data from multiple studies and analyzed algae, benthic invertebrate, and fish community data from 186 stream sites, including un-mined streams, and those associated with 620 mines on the West Coast of the South Island, New Zealand. Algal, invertebrate, and fish richness responded to mine impacts and were significantly higher in un-mined compared to mine-impacted streams. Changes in community composition toward more acid- and metal-tolerant species were evident for algae and invertebrates, whereas changes in fish communities were significant and driven by a loss of nonmigratory native species. Consistent catchment-scale predictors of mining activities affecting biota included the time post mining (years), mining density (the number of mines upstream per catchment area), and mining intensity (tons of coal production per catchment area). Mining was associated with a decline in stream biodiversity irrespective of catchment size, and recovery was not evident until at least 30 years after mining activities have ceased. These catchment-scale predictors can provide managers and regulators with practical metrics to focus on management and remediation decisions.

  15. Identifying Catchment-Scale Predictors of Coal Mining Impacts on New Zealand Stream Communities.

    PubMed

    Clapcott, Joanne E; Goodwin, Eric O; Harding, Jon S

    2016-03-01

    Coal mining activities can have severe and long-term impacts on freshwater ecosystems. At the individual stream scale, these impacts have been well studied; however, few attempts have been made to determine the predictors of mine impacts at a regional scale. We investigated whether catchment-scale measures of mining impacts could be used to predict biological responses. We collated data from multiple studies and analyzed algae, benthic invertebrate, and fish community data from 186 stream sites, including un-mined streams, and those associated with 620 mines on the West Coast of the South Island, New Zealand. Algal, invertebrate, and fish richness responded to mine impacts and were significantly higher in un-mined compared to mine-impacted streams. Changes in community composition toward more acid- and metal-tolerant species were evident for algae and invertebrates, whereas changes in fish communities were significant and driven by a loss of nonmigratory native species. Consistent catchment-scale predictors of mining activities affecting biota included the time post mining (years), mining density (the number of mines upstream per catchment area), and mining intensity (tons of coal production per catchment area). Mining was associated with a decline in stream biodiversity irrespective of catchment size, and recovery was not evident until at least 30 years after mining activities have ceased. These catchment-scale predictors can provide managers and regulators with practical metrics to focus on management and remediation decisions.

  16. Characterization and effectiveness of remining abandoned coal mines in Pennsylvania. Report of investigations/1995

    SciTech Connect

    Hawkins, J.W.

    1995-10-01

    A U.S. Bureau of Mines review of 105 remining permits in Pennsylvania indicates that remining results in substantial reclamation of abandoned mine lands, utilization of significant quantities of coal, and reduction contaminant loads (acidity and iron) from degraded mine drainage discharges. Analysis of water quality and flow rates before and after remining indicates that a majority of the mines exhibited either no change or a significant decrease in pollution rate because of remining.

  17. INTEGRATED POWER GENERATION SYSTEMS FOR COAL MINE WASTE METHANE UTILIZATION

    SciTech Connect

    Peet M. Soot; Dale R. Jesse; Michael E. Smith

    2005-08-01

    An integrated system to utilize the waste coal mine methane (CMM) at the Federal No. 2 Coal Mine in West Virginia was designed and built. The system includes power generation, using internal combustion engines, along with gas processing equipment to upgrade sub-quality waste methane to pipeline quality standards. The power generation has a nominal capacity of 1,200 kw and the gas processing system can treat about 1 million cubic feet per day (1 MMCFD) of gas. The gas processing is based on the Northwest Fuel Development, Inc. (NW Fuel) proprietary continuous pressure swing adsorption (CPSA) process that can remove nitrogen from CMM streams. The two major components of the integrated system are synergistic. The byproduct gas stream from the gas processing equipment can be used as fuel for the power generating equipment. In return, the power generating equipment provides the nominal power requirements of the gas processing equipment. This Phase III effort followed Phase I, which was comprised of a feasibility study for the project, and Phase II, where the final design for the commercial-scale demonstration was completed. The fact that NW Fuel is desirous of continuing to operate the equipment on a commercial basis provides the validation for having advanced the project through all of these phases. The limitation experienced by the project during Phase III was that the CMM available to operate the CPSA system on a commercial basis was not of sufficiently high quality. NW Fuel's CPSA process is limited in its applicability, requiring a relatively high quality of gas as the feed to the process. The CPSA process was demonstrated during Phase III for a limited time, during which the processing capabilities met the expected results, but the process was never capable of providing pipeline quality gas from the available low quality CMM. The NW Fuel CPSA process is a low-cost ''polishing unit'' capable of removing a few percent nitrogen. It was never intended to process CMM

  18. Relations between health indicators and residential proximity to coal mining in West Virginia

    SciTech Connect

    Hendryx, M.; Ahern, M.M.

    2008-04-15

    We used data from a survey of 16493 West Virginians merged with county-level coal production and other covariates to investigate the relations between health indicators and residential proximity to coal mining. Results of hierarchical analyses indicated that high levels of coal production were associated with worse adjusted health status and with higher rates of cardiopulmonary disease, chronic obstructive pulmonary disease, hypertension, lung disease, and kidney disease. Research is recommended to ascertain the mechanisms, magnitude, and consequences of a community coal-mining exposure effect.

  19. 30 CFR 77.402 - Hand-held power tools; safety devices.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Hand-held power tools; safety devices. 77.402... COAL MINES Safeguards for Mechanical Equipment § 77.402 Hand-held power tools; safety devices. Hand-held power tools shall be equipped with controls requiring constant hand or finger pressure to...

  20. 30 CFR 75.1724 - Hand-held power tools; safety devices.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Hand-held power tools; safety devices. 75.1724... SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Miscellaneous § 75.1724 Hand-held power tools; safety devices. Hand-held power tools shall be equipped with controls requiring...