Subsidence resulting from multiple-seam longwall mining in the western United States: A characterization study. Information Circular/1991

Technical Report · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5668565

Dyni, R C

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
• Resource Relation: Other Information: See also PB83-172189, PB86-106325 and PB89-121891. Library of Congress catalog card no. 91-21614
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
54 ENVIRONMENTAL SCIENCES
GROUND SUBSIDENCE
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COAL DEPOSITS
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COAL SEAMS
DEPTH
FIELD TESTS
MINING
ROCK MECHANICS
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USA
DEVELOPED COUNTRIES
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Terrestrial- Site Resource & Use Studies- (1990-)