Subsidence resulting from multiple-seam longwall mining in the western United States
Technical Report
·
OSTI ID:5791101
This paper details the investigation of multiple-seam longwall subsidence conducted by the U.S. 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 areal extent, and critical width are evaluated and discussed. comparisons are also made between the characteristics of multiple-seam longwall subsidence and single-seam longwall subsidence that occurred at the same site.
- Research Organization:
- Bureau of Mines, Pittsburgh, PA (United States)
- OSTI ID:
- 5791101
- Report Number(s):
- IC-9297
- Country of Publication:
- United States
- Language:
- English
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