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Geological Features That Contribute to Ground Control Problems in Underground Coal Mines.


PB94112299

Publication Date 1993
Personal Author Shea-Albin, V. R.
Page Count 46
Abstract 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.
Keywords
  • Coal mining
  • Underground mining
  • Geologic structures
  • Strata control
  • Rock mechanics
  • Coal seams
  • Geologic fractures
  • Geologic fissures
  • Dikes
  • Lineaments
  • Lithology
  • Cracks
Source Agency
  • Bureau of Mines
NTIS Subject Category
  • 48A - Mineral Industries
  • 48F - Geology & Geophysics
Corporate Authors Bureau of Mines, Denver, CO. Denver Research Center.
Supplemental Notes Library of Congress catalog card no. 93-5540.
Document Type Technical Report
Title Note Information circular/1993.
NTIS Issue Number 199403
Geological Features That Contribute to Ground Control Problems in Underground Coal Mines.
Geological Features That Contribute to Ground Control Problems in Underground Coal Mines.
PB94112299

  • Coal mining
  • Underground mining
  • Geologic structures
  • Strata control
  • Rock mechanics
  • Coal seams
  • Geologic fractures
  • Geologic fissures
  • Dikes
  • Lineaments
  • Lithology
  • Cracks
  • Bureau of Mines
  • 48A - Mineral Industries
  • 48F - Geology & Geophysics
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