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A platform for research: civil engineering, architecture and urbanism
Study of strata control on mechanized coal faces
Investigations were carried out at 7 coal mines covering 13 different sets of conditions, including support load, convergence, roof strain, roof inclination, lateral movement of roof and floor, movement of coal face toward waste, coal hardness, and floor strength; results indicate that high support load densities, instead of improving conditions of coal face, may lead to deterioration of roof; lateral roof/floor movement can only be reduced by use of strip packing or possibly by adopting some form of sloping prop system.
Study of strata control on mechanized coal faces
Investigations were carried out at 7 coal mines covering 13 different sets of conditions, including support load, convergence, roof strain, roof inclination, lateral movement of roof and floor, movement of coal face toward waste, coal hardness, and floor strength; results indicate that high support load densities, instead of improving conditions of coal face, may lead to deterioration of roof; lateral roof/floor movement can only be reduced by use of strip packing or possibly by adopting some form of sloping prop system.
Study of strata control on mechanized coal faces
Int Conference Strata Control Rock Mechanics -- Paper
Shepherd, R. (author)
Meeting of the Fourth International Conference on Strata Control and Rock Mechanics ; 1964
1964
15 pages
Conference paper
English
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