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National Institute for Occupational Safety and Health National Institute for Occupational Safety and Health
National Institute for Occupational Safety and Health

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  • Reducing hazards in underground coal mines through the recognition and delineation of coalbed discontinuities caused by ancient channel processes
    Filetype[PDF - 2.39 MB]
    Personal Author:
    Kertis, Carla A.
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    1985
    Series:
    Report of investigations (United States. Bureau of Mines) ; 8987
    Description:
    "Because coalbed discontinuities often pose serious economic and safety problems in underground coal mines, criteria were documented for the recogniti...
    File Type:
    Filetype[PDF - 2.39 MB]
    File Type:
    Filetype[PDF - 2.39 MB]
  • Geology, mining, and methane content of the Freeport and Kittanning coalbeds in Indiana and surrounding counties, Pa
    Filetype[PDF - 3.26 MB]
    Personal Author:
    Puglio, D. G. (Donald G.) ; Iannacchione, Anthony ;
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    1979
    Series:
    Report of investigations (United States. Bureau of Mines) ; 8406
    Description:
    "This Bureau of Mines study covers 25 underground mines that were active in the upper and Lower Freeport and Lower Kittanning coalbeds in 1976. The co...
    File Type:
    Filetype[PDF - 3.26 MB]
    File Type:
    Filetype[PDF - 3.26 MB]
  • Case evaluation of a surface seismic reflection technique for delineating coalbed discontinuities
    Filetype[PDF - 1.90 MB]
    Personal Author:
    Molinda, G. M. (Gregory M.) ; Ingram, David K. ;
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    1988
    Series:
    Report of investigations (United States. Bureau of Mines) ; 9147
    Description:
    "Coalbed discontinuities historically have been hazardous to mining as well as obstructions to efficient production. An effective means of mapping the...
    File Type:
    Filetype[PDF - 1.90 MB]
    File Type:
    Filetype[PDF - 1.90 MB]
  • Rib stability : practical considerations to optimize rib design
    Filetype[PDF - 1.09 MB]
    Personal Author:
    Smith, W. C. (William Cyrille), 1955-
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    1992
    Series:
    Information circular (United States. Bureau of Mines) ; 9323
    Description:
    "The Bureau of Mines examined previous research on rib stability in an effort to develop a practical approach to understanding, characterizing, and co...
    File Type:
    Filetype[PDF - 1.09 MB]
    File Type:
    Filetype[PDF - 1.09 MB]
  • Geology and gas content of coalbeds in vicinity of Bureau of Mines, Bruceton, Pa.
    Filetype[PDF - 1023.00 KB]
    Personal Author:
    Elder, Curtis H. ; Irani, M. C. ;
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    1977
    Series:
    Report of investigations (United States. Bureau of Mines) ; 8247
    Description:
    "Two degasification test boreholes were drilled to depths of 1,238 and 1,212 feet on Bureau of Mines property at Bruceton, Pennsylvania, as part of th...
    File Type:
    Filetype[PDF - 1023.00 KB]
    File Type:
    Filetype[PDF - 1023.00 KB]
  • Geology of the Mary Lee Group of coalbeds, Black Warrior coal basin, Alabama
    Filetype[PDF - 2.14 MB]
    Personal Author:
    Murrie, Gary B. ; Diamond, W. P. (William P.) ; ...
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    1976
    Series:
    Report of investigations (United States. Bureau of Mines) ; 8189
    Description:
    "A geologic study of the Mary Lee Group of coalbeds in the Black Earrior Coal Basin was undertaken to examine coal stratigraphy and determine regional...
    File Type:
    Filetype[PDF - 2.14 MB]
    File Type:
    Filetype[PDF - 2.14 MB]
  • Geologic factors influencing the gas content of coalbeds in southwestern Pennsylvania
    Filetype[PDF - 1.39 MB]
    Personal Author:
    Ulery, J. P. (James P.)
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    1988
    Series:
    Report of investigations (United States. Bureau of Mines) ; 9195
    Description:
    "A Bureau of Mines geologic study of Pennsylvanian and Permian coalbeds in southwestern Pennsylania was undertaken to determine the effects of coalbed...
    File Type:
    Filetype[PDF - 1.39 MB]
    File Type:
    Filetype[PDF - 1.39 MB]