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A Study of the Subsidence of Sloping Terrain Due to Undermining.
Proc 1988 :35-39
Subsidence over a series of longwall panels undermining sloping terrain in southwestern Pennsylvania was monitored to verify the U.S. Bureau of Mines subsidence prediction model for the northern Appalachian coal region. Comparison of the field data to model output shows close agreement. Vertical movements over each panel ceased with the mining of the adjacent panel. Horizontal movements were significantly affected by topographic slope. The distribution of horizontal strains over each panel was similar with a zone of compression occurring over the center of each panel flanked by zones of tension toward the rib. The magnitudes of the tensions were affected by the slope. The strains developed at the completion of each panel were not significantly altered by the mining of subsequent panels. (Note.--A similar paper was presented under the title "subsidence due to undermining of sloping terrain: a case study" at the Fifth International (fig) Symposium on Deformation Measurements and 5th Canadian Symposium on Mining Surveying and Rock Deformation Measurements, Fredericton, NB, Canada, June 6-9, 1988, and published in the proceedings.)
Proc. 1988 Symp. on Mining, Hydrology, Sedimentology, & Reclam; Univ. Kentucky, 1988, PP. 35-39
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