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1
Methane Emissions from Abandoned Underground Coal Mines.
1994-01-01

The paper summarizes current research on abandoned underground coal mines. It forms an initial basis for developing an inventory of methane emissions from such mines. Early measurements have shown that some abandoned coal mines can liberate large volumes ...

National Technical Information Service (NTIS)

2
METHANE EMISSIONS FROM ABANDONED UNDERGROUND COAL MINES

The paper summarizes current research on abandoned underground coal mines. t forms an initial basis for developing an inventory of methane emissions from such mines. arly measurements have shown that some abandoned coal mines can liberate large volumes of high quality gas (up to ...

EPA Science Inventory

3
30 CFR 75.1721 - Opening of new underground coal mines, or reopening and reactivating of abandoned or deactivated...
2010-07-01

...and reactivating of abandoned or deactivated coal mines, notification by the...and reactivating of abandoned or deactivated coal mines, notification by the...underground coal mine, and a mine which has been abandoned or deactivated...

Code of Federal Regulations, 2010

4
Blasting to Stabilize Abandoned Underground Mines in Eastern and Midwestern Coal Fields: A Feasibility Study.
1991-01-01

The study was designed to assist individuals involved with problem of abandoned mines that are subsiding. The study analyzed the practicality and desirability of using blasting to stabilize subsiding abandoned underground mines. Application of blasting to...

National Technical Information Service (NTIS)

5
43 CFR 3595.2 - Abandonment of underground workings.
2010-10-01

...MINERALS (OTHER THAN COAL) EXPLORATION AND MINING OPERATIONS Protection Against Mining Hazards § 3595.2 Abandonment of underground...abandoned and rendered inaccessible without the advance, written approval of the authorized...

Code of Federal Regulations, 2010

6
Neutralization of Acidic Discharges from Abandoned Underground Coal Mines by Alkaline Injection.
1993-01-01

The hydrologic characteristics of two abandoned underground coal mine sites, near Latrobe, PA, and Unionntown, PA, were investigated by the U.S. Bureau of Mines for possible implementation of alkaline injection into the mine pools as a means of abating th...

National Technical Information Service (NTIS)

7
Lightning Propagation Through the Earth and Its Potential for Methane Ignitions in Abandoned Areas of Underground Coal Mines.
2005-01-01

Strong circumstantial evidence suggests that lightning has initiated methane explosions in abandoned and sealed areas of underground coal mines. The report investigates this phenomenon.

National Technical Information Service (NTIS)

8
Problem Sites: Lands Affected by Underground Mining for Coal in Illinois.
1978-01-01

Following a statewide survey of all Illinois lands affected by underground mining for coal, the Cooperative Wildlife Research Laboratory of Southern Illinois University at Carbondale identified problem areas associated with abandoned underground mine site...

National Technical Information Service (NTIS)

9
Management of dry flue gas desulfurization by-products in underground mines.
1997-01-01

Disposal of coal combustion by-products (CCBs) in an environmentally sound manner is a major issue facing the coal and utility industries in the US today. Disposal into abandoned sections of underground coal mines may overcome many of the surface disposal...

National Technical Information Service (NTIS)

10
Use of resistivity techniques to detect presence of abandoned drift mines
1985-01-01

Many coal mining companies have potential surface mine reserves which either are known or suspected to have had prior drift mining activity on them. In many cases, there is no documentation on these mines or at best, very fragmented records. These undocumented abandoned underground mines are creating engineering, financial, and ...

Energy Citations Database

11
30 CFR 75.1721 - Opening of new underground coal mines, or reopening and reactivating of abandoned or deactivated...
2009-07-01

...of abandoned or deactivated coal mines, notification by the...operator of a new underground coal mine, and a mine which has...reactivating the mine notify the Coal Mine Health and Safety...proposed program for searching miners for smoking materials in...

Code of Federal Regulations, 2010

12
Management of dry flue gas desulfurization by-products in underground mines. Quarterly report, August 1--October 31, 1997.
1997-01-01

The objective of this project was to develop and demonstrate two technologies for the placement of coal combustion by-products in abandoned underground coal mines, and to assess the environmental impact of these technologies for the management of CCB mate...

National Technical Information Service (NTIS)

13
Gravel bulkheads for confining hydraulic backfilling of abandoned underground coal mines
1985-01-01

In this work the author describes the use of gravel bulkheads for confining hydraulic backfilling of abandoned underground coal mines that are simply refilled or, as in the case of the Portal Park swimming pool in Colorado Springs, rebuilt in the area over the abandoned mine. Hydraulic backfilling was the void ...

Energy Citations Database

14
30 CFR 784.25 - Return of coal processing waste to abandoned underground workings.
2009-07-01

...UNDER REGULATORY PROGRAMS UNDERGROUND MINING PERMIT APPLICATIONS-MINIMUM...processing waste to abandoned underground workings. (a) Each...processing waste disposal facility, including flow diagrams...method of constructing underground retaining walls,...

Code of Federal Regulations, 2010

15
Parameter Definition - Global Change Master Directory - Variable ...

Mine drainage, also known as acid mine drainage, is sulfuric acid that drains from mines, especially abandoned underground coal mines such as in ...

NASA Website

16
Operators buy refuse to extract coal
1981-09-01

This paper discusses the recovery of coal from refuse piles of old, abandoned underground mines in the USA. A survey conducted by the Coal Extraction and Utilization Research Center of Southern Illinois University is analyzed. The financial opportunities such a process offers to the investor are discussed.

Energy Citations Database

17
Mine Fire Diagnostics and Implementation of Water Injection with Fume Exhaustion at Renton, PA.
1991-01-01

U.S. Bureau of Mines research to develop diagnostic methods to locate and evaluate fires in abandoned mines and waste banks and techniques to extinguish such fires was applied to an abandoned 60-acre underground bituminous coal mine (Renton, Allegheny Cou...

National Technical Information Service (NTIS)

18
Reclamation of abandoned coal refuse piles and underground adit entries in the Big South Fork National River and Recreation Area
1985-12-01

This paper reviews reclamation activities conducting during 1984-85 in the Big South Fork National River and Recreational Area, Kentucky, and Tennessee. Under this integrated reclamation project, four sites comprising 14 acres of highly acidic abandoned coal refuse were treated and 43 abandoned adit underground ...

Energy Citations Database

19
Evaluation of Shavers Fork Mine Seals.
1971-01-01

At Bowden, West Virginia, a fish kill occurred in a hatchery in the spring of 1966, reportedly from acid mine drainage flushing out of several abandoned underground coal mines. The West Virginia Department of Mines air sealed several small underground min...

National Technical Information Service (NTIS)

20
Disposal of fluidized bed combustion ash in an underground mine to control acid mine drainage and subsidence.
2000-01-01

This project will evaluate the technical, economic and environmental feasibility of filling abandoned underground mine voids with alkaline, advanced coal combustion wastes (Fluidized Bed Combustion-FBC ash). Success will be measured in terms of technical ...

National Technical Information Service (NTIS)

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21
Disposal of fluidized bed combustion ash in an underground mine to control acid mine drainage and subsidence.
1999-01-01

This project will evaluate the technical, economic and environmental feasibility of filling abandoned underground mine voids with alkaline, advanced coal combustion wastes (Fluidized Bed Combustion-FBC ash). Success will be measured in terms of technical ...

National Technical Information Service (NTIS)

22
30 CFR 784.25 - Return of coal processing waste to abandoned underground workings.
2010-07-01

...retaining walls, influence of the backfilling operation on active underground mine operations, surface area to be supported...The applicant shall describe the source of the hydraulic transport mediums, method of dewatering the placed backfill,...

Code of Federal Regulations, 2010

23
Methane emissions from abandoned underground coal mines. Report for October 1992-September 1993
1994-01-01

The paper summarizes current research on abandoned underground coal mines. It forms an initial basis for developing an inventory of methane emissions from such mines. Early measurements have shown that some abandoned coal mines can liberate large volumes of high quality gas (up to 750,000 cu ...

Energy Citations Database

24
Coal and the Environment Abstract Series. Mine Drainage Bibliography 1910-1976.
1977-01-01

The Coal Mine Drainage Bibliography covers the following areas: surface and underground mines, active and abandoned mines, reclaimed surface mines, and planning of new mines. Also included are information on lakes formed by surface mining, drainage from c...

National Technical Information Service (NTIS)

25
30 CFR 75.373 - Reopening mines.
2010-07-01

... COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Ventilation § 75.373 Reopening mines. After a mine is abandoned or declared inactive, and before it is reopened, mining operations shall not...

Code of Federal Regulations, 2010

26
Blasting to stabilize abandoned underground mines in eastern and midwestern coal fields: A feasibility study. Open File Report
1991-05-22

The study was designed to assist individuals involved with problem of abandoned mines that are subsiding. The study analyzed the practicality and desirability of using blasting to stabilize subsiding abandoned underground mines. Application of blasting to subsidence problems could provide a valuable alternative technology to classical ...

Energy Citations Database

27
Coal resources and development map of Colorado
1978-01-01

The detailed map shows locations of lignite with less than 150 feet of overburden and with 150 to 1,000 feet of overburden; subbituminous or bituminous coal with less than 150 feet of overburden and with 150 to 3,000 feet of overburden; bituminous coal with more than 3,000 feet of overburden; anthracite and semianthracite; and areas of past or present ...

Energy Citations Database

28
Use of Mine PoolUse of Mine Pool Water for PowerWater for Power

water from abandoned coal mining sites. The Surface Mining Control and Reclamation Act of 1977 (SMCRA lands and streams that had been damaged or degraded by past mining practices. The abandoned mine lands in abandoned underground mines is not likely to be covered under SMCRA AML restoration ...

E-print Network

29
National symposium on reclamation of abandoned mine lands
1984-01-01

The proceedings of the 1984 conference on reclamation of abandoned mines includes papers on: overburden blasting to accomplish reclamation, when is a feature a hazard, numerical model of pumped slurry backfilling, blasting techniques applied to reclamation, extinguishment of waste coal fires, injecting fly ash in the underground water ...

Energy Citations Database

30
Assessment, water-quality trends, and options for remediation of acidic drainage from abandoned coal mines near Huntsville, Missouri, 2003-2004
2005-01-01

Water from abandoned underground coal mines acidifies receiving streams in the Sugar Creek Basin and Mitchell Mine Basin near Huntsville, Missouri. A 4.35-kilometer (2.7-mile) reach of Sugar Creek has been classified as impaired based on Missouri's Water Quality Standards because of small pH values [

USGS Publications Warehouse

31
Assessment, Water-Quality Trends, and Options for Remediation of Acidic Drainage from Abandoned Coal Mines Near Huntsville, Missouri, 2003-2004.
2005-01-01

Water from abandoned underground coal mines acidifies receiving streams in the Sugar Creek Basin and Mitchell Mine Basin near Huntsville, Missouri. A 4.35-kilometer (2.7-mile) reach of Sugar Creek has been classified as impaired based on Missouri's Water ...

National Technical Information Service (NTIS)

32
Coal and the environment abstract series. Mine drainage bibliography 1910-1976
1977-03-01

The Coal Mine Drainage Bibliography covers the following areas: surface and underground mines, active and abandoned mines, reclaimed surface mines, and planning of new mines. Also included are information on lakes formed by surface mining, drainage from coal refuse disposal areas, and water from ...

Energy Citations Database

33
Underground Stowing of Mine Waste.
1983-01-01

This report is concerned with the removal of mine waste that has been deposited on the surface and its return to the mined-out area of an active or abandoned coal mine. Emphasis is therefore on the bulk handling systems suitable for large volumes of waste...

National Technical Information Service (NTIS)

34
Test Plan for Evaluation of the Low-Temperature Thermal Resource in Flooded Underground Mines.
1985-01-01

A test plan was developed to provide the basis for field measurements of the thermal resource associated with the waters of flooded, abandoned coal mines in Scranton, Pennsylvania. These waters provide a potential resource for a district heating and cooli...

National Technical Information Service (NTIS)

35
Stratification in Water Quality in Inundated Anthracite Mines, Eastern Pennsylvania.
1984-01-01

The Bureau of Mines conducted a field investigation of the water quality in inundated underground coal mines in the Northern Anthracite Field, eastern Pennsylvania. Water samples were collected at multiple depths from nine abandoned mine shafts in the Wyo...

National Technical Information Service (NTIS)

36
Use of foaming mud cement to terminate underground coal fires and to control subsidence of burn cavities. Final report
1988-09-29

Foaming Mud Cement (FMC) is a class of materials related to cellular cement studied and developed for the purpose of addressing Abandoned Mine Land problems. During the 2-year program, significant advances were made using a specific methodology that properly employed will enable the successful termination of many surface and underground ...

Energy Citations Database

37
TSMs forage for coal in the hills
1982-05-01

Resembling a cross between an underground continuous miner and a surface augering machine, the Thin Seam Miner (TSM) is able to bore into coal seams from new or abandoned highwalls to distances of 220 ft. This ability, enhanced by the incorporation of natural-radiation sensors, allows a TSM to recover 80% to 85% of ...

Energy Citations Database

38
COAL AND THE ENVIRONMENT ABSTRACT SERIES. MINE DRAINAGE BIBLIOGRAPHY 1910-1976

The Coal Mine Drainage Bibliography covers the following areas: surface and underground mines, active and abandoned mines, reclaimed surface mines, and planning of new mines. Also included are information on lakes formed by surface mining, drainage from coal refuse disposal areas...

EPA Science Inventory

39
Blasting for Abandoned Mine Land Reclamation (Closure of Individual Subsidence Features and Erratic, Undocumented Underground Coal Mine Workings).
1991-01-01

The study has examined the feasibility of blasting for mitigating various abandoned mine land features on AML sites. The investigation included extensive field trial blasts at sites in North Dakota and Montana. A blasting technique was used that was based...

National Technical Information Service (NTIS)

40
30 CFR 77.216-5 - Water, sediment or slurry impoundments and impounding structures; abandonment.
2010-07-01

...impoundments and impounding structures; abandonment. 77.216-5 Section 77.216-5 Mineral Resources MINE SAFETY AND HEALTH...UNDERGROUND COAL MINES Surface Installations § 77.216-5 Water, sediment or slurry...

Code of Federal Regulations, 2010

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41
UNDERGROUND MINE DRAINAGE CONTROL SNOWY CREEK-LAUREL RUN, WEST VIRGINIA, FEASIBILITY STUDY

A study was conducted at the Snowy Creek - Laurel Run basin near Terra Alta, West Virginia, to determine the feasibility of demonstrating mine drainage control by known abatement techniques in abandoned coal mine areas having shallow overburden. The basin contains two abandoned m...

EPA Science Inventory

42
30 CFR 77.216-5 - Water, sediment or slurry impoundments and impounding structures; abandonment.
2009-07-01

...impoundments and impounding structures; abandonment. 77.216-5 Section 77.216-5 Mineral Resources MINE SAFETY AND HEALTH...UNDERGROUND COAL MINES Surface Installations § 77.216-5 Water, sediment or slurry...

Code of Federal Regulations, 2010

43
1980 oil and gas drilling and coal production summary for Montana
1981-01-01

This report is a compilation of the oil and gas drilling and the coal mining for Montana in 1980. In 1980 a total of 789 drill holes were completed. Of these 423 were dry holes which include those holes reported as being dry, dry and abandoned, abandoned, plugged, permit expired, plugged and abandoned or drilled as ...

Energy Citations Database

44
Integrated Space Geodetic Techniques For Monitoring Ground
2001-01-01

Ground subsidence monitoring is of paramount importance in relation to the safety and efficiency of underground mining operations. Moreover, in established coal fields in eastern Australia, it has become harder and harder to select underground minesites which can avoid major engineering structures both on the surface and ...

E-print Network

45
Cost-benefit analysis of reclaiming abandoned gob and slurry: west central illinois
1980-01-01

Economic impacts of reclaiming abandoned gob and slurry areas associated with underground coal mining in west-central Illinois are assessed. Using a land value method, monetary benefits of reclaiming the abandoned land range from $340,000 to $430,000/ using a ''''willingness to ...

Energy Citations Database

46
Outcrop and underground mine fires in Allegheny County, Pa
1948-01-01

Property damage and health hazards resulting from uncontrolled mine fires, burning both in surface outcrops of coal seams and in underground abandoned mines, can be minimized by the adoption of prompt and vigorous countermeasures. Typical examples of active mine fires which have been investigated by the Bureau in Allegheny County, Pa., ...

Energy Citations Database

47
Disposal of fluidized bed combustion ash in an underground mine to control acid mine drainage and subsidence. Quarterly report, March 1--May 31, 1998.
1998-01-01

This project will evaluate the technical, economic and environmental feasibility of filling abandoned underground mine voids with alkaline, advanced coal combustion wastes (Fluidized Bed Combustion, FBC, ash). Success will be measured in terms of technica...

National Technical Information Service (NTIS)

48
Disposal of fluidized bed combustion ash in an underground mine to control acid mine drainage and subsidence. Quarterly report, December 1, 1996--February 28, 1997.
1997-01-01

This project will evaluate the technical, economic and environmental feasibility of filling abandoned underground mine voids with alkaline, advanced coal combustion wastes (Fluidized Bed Combustion-FBC ash). Success will be measured in terms of technical ...

National Technical Information Service (NTIS)

49
Proceedings of Workshop on Surface Subsidence Due to Underground Mining (2nd). Held in Morgantown, West Virginia, on June 9-11, 1986.
1986-01-01

The workshop addressed underground subsidence problems, particularly those related to U.S. coal mining conditions. Topics addressed: regulatory insurance and legal issues; subsidence predictions; subsidence monitoring and control; abandoned mine lands and...

National Technical Information Service (NTIS)

50
Method for in situ biological conversion of coal to methane
1995-01-01

A method and apparatus are provided for the in situ biological conversion of coal to methane comprising culturing on a coal-containing substrate a consortium of microorganisms capable of degrading the coal into methane under suitable conditions. This consortium of microorganisms can be obtained from an underground ...

DOEpatents

51
Resource targets for advanced underground coal extraction systems
1982-08-01

Resource targets appropriate for federal sponsorship of research and development of advanced underground coal mining systems are identified. A comprehensive examination of conventional and unconventional coals with particular attention to exceptionally thin and thick seams, steeply dipping beds, and multiple seam geometry was made. The ...

NASA Astrophysics Data System (ADS)

52
Mine-fire diagnostics applied to the Carbondale, Pennsylvania mine-fire site. Rept. of Investigations/1992
1992-01-01

The U.S. Bureau of Mines applied its mine fire diagnostic method to an abandoned anthracite mine fire site in Carbondale, Lackawanna County, PA. The technique to locate fires in abandoned coal mines and coal refuse piles includes the determination of hydrocarbon concentrations in mine gases, the imposition of an ...

Energy Citations Database

53
Analysis and application of coal-seam seismic waves for detecting abandoned mines
2007-09-15

Two in-seam reflection surveys and one transmission survey were acquired at an abandoned underground mine near Hurley, Virginia, to demonstrate the feasibility of detecting abandoned-mine voids utilizing coal-seam seismic waves. Standard, commonly available tools for seismic reflection processing were used. The ...

Energy Citations Database

54
Detection of coal mine workings using high-resolution earth resistivity techniques. Final technical report, September 1979-September 1980
1980-09-26

Shallow underground voids resulting from early coal mining and other resource recovery activities over the past several decades are now being recognized as a significant cause of ground subsidence problems in developing urban areas. Uncertain knowledge of abandoned coal mines also imposes potential hazards in ...

Energy Citations Database

55
Geochemistry of an abandoned landfill containing coal combustion ...

Jun 16, 2011 ... Title: Geochemistry of an abandoned landfill containing coal combustion waste: Implications for remediation ...

Treesearch

56
TECHNICAL COMMUNICATION Covering Pre-existing, Acid-producing Fills with Alkaline

previously-mined and abandoned surface and underground mines to obtain the remaining coal reserves. Through to Control Acid Mine Drainage Thomas Cook � Jeff Skousen � Tiff Hilton Received: 15 June 2008 / Accepted: 22 of overburden from the Number 5 Block coal seam were constructed during previous mining oper- ...

E-print Network

57
Explosion Pressure Design Criteria for New Seals in U.S. Coal Mines.
2007-01-01

Seals are barriers constructed in underground coal mines throughout the United States to isolate abandoned mining panels or groups of panels from the active workings. Historically, mining regulations required seals to withstand a 140-kPa (20-psig) explosi...

National Technical Information Service (NTIS)

58
Disposal of fluidized bed combustion ash in an underground mine to control acid mine drainage and subsidence - phase II - small scale field demonstration. Topical report, December 1, 1996--February 28, 1997.
1998-01-01

It has been proposed that a mix made from fly and bottom ash from atmospheric pressure fluidized bed coal combusters (FBC ash), water, and stabilizers be injected from the surface into abandoned room and pillar coal mines through boreholes. Besides ash di...

National Technical Information Service (NTIS)

59
Comparative Study of Blasting Vibrations from Indiana Surface Coal Mines.
1989-01-01

The U.S. Bureau of Mines performed a comparative study of nine sites at eight surface coal mines to determine if the presence of near-surface underground abandoned workings resulted in the generation of adverse long-duration, low-frequency blast vibration...

National Technical Information Service (NTIS)

60
Some Positive and Negative Aspects of Mine Abandonment and Their Implications on Infrastructure
2004-01-01

Many urban and greenfield environments throughout the United Kingdom are located in regions where mining has occurred. Mining dates back to pre-Roman times and includes metalliferous minerals (such as gold, copper, lead & zinc), bulk minerals (such as sand-stone, limestone, gypsum & halite) and coal, the latter being the most important mineral mined both quantitatively ...

NASA Astrophysics Data System (ADS)

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61
Manual for Abandoned Underground Mine Inventory and Risk Assessment.
1998-01-01

This manual presents a process to manage roadway sites beneath which abandoned underground mines exist. The process is comprised of four basic activities: (1) the establishment of an inventory of all roadway sites beneath which abandoned underground mines...

National Technical Information Service (NTIS)

62
Management of dry flue gas desulfurization by-products in underground mines. Annual report, October 1994--September 1995
1995-10-01

On September 30, 1993, the U.S. Department of Energy-Morgantown Energy Technology Center (DOE-METC) and Southern Illinois University at Carbondale (SIUC) entered into a cooperative research agreement entitled {open_quotes}Management of Dry Flue Gas Desulfurization By-Products in Underground Mines{close_quotes} (DE-FC21-93MC30252). Under the agreement Southern Illinois ...

DOE Information Bridge

63
Inactive and abandoned underground mines. Water pollution prevention and control
1975-06-01

Underground mining operations across the United States produce a number of environmental problems. The foremost of these environmental concerns is acid discharges from inactive and abandoned underground mines that deteriorate streams, lakes and impoundments. Waters affected by mine drainage are altered both chemically and physically. ...

Energy Citations Database

64
Automatic 3D underground mine mapping
2003-01-01

methods for automated modeling of 3D environments. In September, 2002, we were given the opportunity to demonstrate our mapping capability in an underground coal mine. The opportunity arose as a result of the Quecreek mine accident, in which an inaccurate map caused miners to breach an abandoned, water-filled mine, trapping them for ...

E-print Network

65
National Park Service - NatureNet Geologic Resources
2008-09-17

Details the issues, hazards, and remediation techniques associated with abandoned mines and resource producing properties of the past on national park land. Abandoned mineral lands, commonly known as AML, are one of many types of disturbed lands in the National Park System. AML sites are 1) underground and surface mines, 2) placer and ...

NSDL National Science Digital Library

66
Introduction to Underground Coal Gasification.
1980-01-01

Underground coal gasification (UCG) offers a relatively low cost, environmentally sound method to produce clean fuels from coal. Underground coal gasification can provide pipeline quality gas and premium gasoline from deep, unusable coal. Underground ...

National Technical Information Service (NTIS)

67
Underground coal mining in China
1983-03-01

A general account is given of China's coal deposits, methods of underground mining and coal preparation plants.

Energy Citations Database

68
Data supplement to: Quality of coal mine drainage to Washington, 1975-77
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 ...

USGS Publications Warehouse

69
Data supplement to: quality of coal mine drainage in Washington, 1975-77
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) ...

Energy Citations Database

70
Monitoring blind backfilling in abandoned mines
1983-12-01

The pumped-slurry, blind backfilling process has been successful for stabilising ground over abandoned underground coal mines. This paper describes potential systems for monitoring backfill placement that would require fewer boreholes and give better definition than those in current use. Continuous process monitoring, acoustic emission ...

Energy Citations Database

71
A System for Volumetric Robotic Mapping of Abandoned Mines
2003-01-01

This paper describes two robotic systems developed for acquiring accurate volumetric maps of underground mines. One system is based on a cart instrumented by laser range finders, pushed through a mine by people. Another is a remotely controlled mobile robot equipped with laser range finders. To build consistent maps of large mines with many cycles, we describe an algorithm for ...

E-print Network

72
Preliminary Toxicological Analysis of the Effect of Coal Slurry Impoundment Water on Human Liver Cells
2008-01-01

Coal is usually 'washed' with water and a variety of chemicals to reduce its content of sulfur and mineral matter. The 'washings' or 'coal slurry' derived from this process is a viscous black liquid containing fine particles of coal, mineral matter, and other dissolved and particulate substances. Coal slurry may be ...

USGS Publications Warehouse

73
Machinery for Winning and Loading of Bituminous Coal ...
1946-07-04

... BKA. Descriptors : *MACHINES, *COAL MINES, *BITUMINOUS COAL, GERMANY, CUTTING, UNDERGROUND FACILITIES. ...

DTIC Science & Technology

74
Detection of abandoned underground coal mines by geophysical methods
1971-04-01

Acid drainage produced by abandoned coal mines continues to cause serious water pollution problems. Without knowing the exact location of the concealed openings and the extent of the mine, source abatement techniques are virtually impossible. Drilling is the only known method for accurately determining the location and extent of the mine voids, but this is ...

Energy Citations Database

75
A statistical approach to evaluate the relation of coal mining, land reclamation, and surface-water quality in Ohio
1984-01-01

Base-flow data from 779 sites in Ohio 's coal region were analyzed statistically to relate land use to selected water-quality characteristics. Sites were classified into five categories: unmined (100 percent unmined land), abandoned (50 percent or more abandoned surface mines), reclaimed (50 percent or more reclaimed surface mines), ...

USGS Publications Warehouse

76
Characterization and effectiveness of remining abandoned coal mines in Pennsylvania
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 ...

Energy Citations Database

77
Automatic three-dimensional underground mine mapping
2006-01-15

For several years, our research group has been developing methods for automated modeling of three-dimensional environments. In September 2002, we were given the opportunity to demonstrate our mapping capability in an underground coal mine. The opportunity arose as a result of the Quecreek mine accident, in which an inaccurate map caused miners to breach an ...

Energy Citations Database

78
Geophysical void detection at the site of an abandoned limestone quarry and underground mine in southwestern Pennsylvania
1992-01-01

Locating underground voids, tunnels, and buried collapse structures continues to present a difficult problem for engineering geoscientists charged with this responsibility for a multitude of different studies. Solutions used and tested for void detection have run the gamut of surface geophysical and remote sensing techniques, to invasive trenching and drilling on ...

Energy Citations Database

79
Surface mining regulations and litigation for 1978
1979-02-01

The Surface Mining Control and Reclamation Act of 1977 required promulgation of interim program regulations by November 3, 1977, and permanent program regulations by August 3, 1978. Relevant regulatory and litigation activities during 1978, and regulations issued under the act are discussed. Included are regulatory actions concerning abandoned mine lands, alluvial valley ...

Energy Citations Database

80
Strength characteristics and air-leakage determinations for alternative mine seal designs. Report of Investigations/1993
1993-01-01

During the normal course of underground coal mining, it sometimes becomes necessary to seal off abandoned areas to eliminate the need to ventilate them. Seals also are used to isolate fire zones or areas susceptible to spontaneous combustion. The objective of the research is to determine whether seals constructed from various materials ...

Energy Citations Database

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81
Proceedings of the second technical symposium on tunnel detection
1985-01-01

Titles of papers collected in these proceedings include: Tunneling operation detection; Data presentation for tunnel detection methodologies; A survey of direct inversion methods having possible application to (coal mine) tunnel detection; Tunnel detection using low-frequency magnetic field emissions; and Abandoned underground lignite ...

Energy Citations Database

82
Geophysical studies to detect the Acme underground coal mine, Wyoming
1988-01-01

The author presents magnetic, electromagnetic, gravimetric, seismic refraction, and topographic surveys run over parts of the Acme Mine. The magnetic survey located buried prehistoric clinkers, but did not locate abandoned rails, tools and other iron objects. The electromagnetic, gravity, and topographic surveys did not give more than subtle hints of underlying openings, and ...

Energy Citations Database

83
Depositional model for understanding geometry of Cretaceous coals: major coal seams, Rock Springs Formation, Green River Basin, Wyoming
1985-09-01

Coal exploration drill holes, measured sections, and underground mine data have been analyzed to reconstruct the depositional setting of the Rock Springs Formation. Extensive coal deposits up to 22 ft thick that developed on top of delta-front sandstones extend for 15 mi along depositional dip, and 36 mi along depositional strike. ...

Energy Citations Database

84
Assessment of Characteristics and Remedial Alternatives for ...

... remedial strategies for abandoned mine drainage (AMD ... drainage from abandoned coal or ... HISTORIC SITES, *MINES(EXCAVATIONS), *RAILROAD ...

DTIC Science & Technology

85
Management of dry gas desulfurization by-products in underground mines. Quarterly report, October 1--December 31, 1996
1996-12-31

The objective is to develop and demonstrate two technologies for the placement of coal combustion by-products in abandoned underground coal mines, and to assess the environmental impact of these technologies for the management of coal combustion by-products. The two technologies for the ...

Energy Citations Database

86
Management of dry flue gas desulfurization by-products in underground mines. Topical report, April 1, 1996--April 30, 1997
1998-12-31

This report represents the Final Technical Progress Report for Phase II of the overall program for a cooperative research agreement between the U.S. Department of Energy - MORGANTOWN Energy Technology Center (DOE-METC) and Southern Illinois University at Carbondale (SIUC). Under the agreement, SIUC will develop and demonstrate technologies for the handling, transport, and placement in ...

Energy Citations Database

87
Blasting for abandoned-mine land reclamation (closure of individual subsidence features and erratic, undocumented underground coal-mine workings). Final report
1991-01-01

The study has examined the feasibility of blasting for mitigating various abandoned mine land features on AML sites. The investigation included extensive field trial blasts at sites in North Dakota and Montana. A blasting technique was used that was based on spherical cratering concepts. At the Beulah, North Dakota site thirteen individual vertical openings (sinkholes) were ...

Energy Citations Database

88
Inactive and Abandoned Underground Mines. Water Pollution Prevention and Control.
1975-01-01

Underground mining operations across the United States produce a number of environmental problems. The foremost of these environmental concerns is acid discharges from inactive and abandoned underground mines that deteriorate streams, lakes and impoundmen...

National Technical Information Service (NTIS)

89
Underground Gasification of Coal.
1974-01-01

This patent application relates to the in situ or underground gasification of coal by drilling boreholes into the major fracture system of coal, igniting the coal, and recovering the gas formed.

National Technical Information Service (NTIS)

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