Subsidence resulting from multiple-seam longwall mining in the western United States: A characterization study. Information Circular/1991
Technical Report
·
OSTI ID:5668565
The report details the investigation of multiple seam longwall subsidence conducted by the Bureau of Mines from 1978 to 1989. A field investigation monitored ground surface movements over four upper seam longwall panels, and six lower seam panels. The characteristics of the subsidence occurring as a result of mining these panels are examined; in particular, the angle of draw, subsidence development, total magnitude and real extent, and critical width, are each evaluated and discussed. Comparisons are also made between the characteristics of multiple seam longwall subsidence to single seam longwall subsidence that occurred at the same site.
- Research Organization:
- Bureau of Mines, Denver, CO (United States). Denver Research Center
- OSTI ID:
- 5668565
- Report Number(s):
- PB-92-158005/XAB; BUMINES-IC--9297
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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COAL DEPOSITS
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54 ENVIRONMENTAL SCIENCES
540250 -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
COAL DEPOSITS
COAL MINING
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DEVELOPED COUNTRIES
DIMENSIONS
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GEOLOGIC DEPOSITS
GROUND SUBSIDENCE
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MONITORING
NORTH AMERICA
RESOURCES
ROCK MECHANICS
SURVEYS
TESTING
UNDERGROUND MINING
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