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Geological features that contribute to ground control problems in underground coal mines.

Authors
Shea-Albin-VR
Source
Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 9370, 1993 Jan; :1-42
Link
NIOSHTIC No.
10012186
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
Strata-control; Rock-mechanics; Coal-seams; Geologic-fractures; Geologic-fissures; Dikes; Lineaments; Lithology; Cracks; Coal-mining; Underground-mining; Geologic-structures
Publication Date
19930101
Document Type
Information Circular
Fiscal Year
1993
NTIS Accession No.
PB94-112299
NTIS Price
A03
Identifying No.
IC-9370
NIOSH Division
DRC
Source Name
Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 9370
State
CO
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