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USGS relates geologic structures to bumps and deformation in coal mine workings
Geological observations in Sunnyside No. 1 mine, Utah, may provide insight into proper design of roof supports; detailed mapping of deformational features in mine has led to conclusion that many of features observed in ribs, floor and roof resulted from tensional stresses; tensional features, however, are superficial, and most of them resulted from relaxation of compressive stress on surfaces of openings; analysis of lateral creep of coal and horizontal shear along bedding planes.
USGS relates geologic structures to bumps and deformation in coal mine workings
Geological observations in Sunnyside No. 1 mine, Utah, may provide insight into proper design of roof supports; detailed mapping of deformational features in mine has led to conclusion that many of features observed in ribs, floor and roof resulted from tensional stresses; tensional features, however, are superficial, and most of them resulted from relaxation of compressive stress on surfaces of openings; analysis of lateral creep of coal and horizontal shear along bedding planes.
USGS relates geologic structures to bumps and deformation in coal mine workings
Min Eng
Osterwald, F.W. (author)
Mining Engineering ; 14
1962
6 pages
Article (Journal)
English
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