Effect of a surface borehole on longwall gob degasification (Pocahontas No. 3 Coalbed)

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1972]

Phys. Desc.:

9 pages : digital, PDF file

Electronic resource

Click for online content.

Improving the performance of longwall gob gas ventholes

Publisher:

Washington, DC : Bureau of Mines, U.S. Dept. of the Interior, [1995]

Phys. Desc.:

[2] p. : digital, PDF file

Electronic resource

Click for online content.

Translucent face partition reduces longwall workers' dust exposure

Publisher:

Washington, DC : Bureau of Mines, U.S. Dept. of the Interior, [1994]

Phys. Desc.:

[2] p. : digital, PDF file

Electronic resource

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Method for predicting methane emissions on extended longwall faces

Publisher:

[Pittsburgh, PA] : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [1997]

Phys. Desc.:

[2] p. : digital, PDF file

Electronic resource

Click for online content.

Evaluation of alternative placement of longwall gob gas ventholes for optimum performance

Publisher:

[Washington, D.C.?] : U.S. Dept. of the Interior, Bureau of Mines, [1994]

Phys. Desc.:

14 pages : digital, PDF file

Electronic resource

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Comparisons between cross-measure boreholes and surface gob holes

Publisher:

[Pittsburg, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1986]

Phys. Desc.:

14 pages : digital, PDF file

Electronic resource

Click for online content.

Prediction of longwall methane emissions : an evaluation of the influence of mining practices on gas emissions and methane control systems

Publisher:

Pittsburgh, Pa. : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Pittsburgh Research Laboratory [1999]

Phys. Desc.:

32 pages : digital, PDF file

Electronic resource

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Updated Analysis of Longwall Pillar Stability (ALPS) computer program incorporates new Coal Mine Roof Rating (CMRR)

Publisher:

Washington, DC : Bureau of Mines, U.S. Dept. of the Interior, [1995]

Phys. Desc.:

[2] p. : digital, PDF file

Electronic resource

Click for online content.

Underground gob gas drainage during longwall mining

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1982]

Phys. Desc.:

1 online resource (14 pages)

Electronic resource

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Methane control on longwalls with cross-measure boreholes (Lower Kittanning coalbed)

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1985]

Phys. Desc.:

17 pages : digital, PDF file

Electronic resource

Click for online content.