A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Formation of axially symmetrical limit loads around mine roadways of circular section
Stress conditions prevailing about tunnels of circular cross-section are discussed; characteristics of lias rocks encountered in mining industry of Mecsek mountain, in Hungary, have been determined experimentally; essential component of elastic behavior exists in rocks in which Poisson's ratio is constant, but at increasing loads Poisson's ratio tends towards 0.5, and plastic range becomes apparent; yield condition in unsupported roadway of circular section is deduced; from this are determined critical depth, dimensions of plastic zone around roadway, and plastic and elastic stresses.
Formation of axially symmetrical limit loads around mine roadways of circular section
Stress conditions prevailing about tunnels of circular cross-section are discussed; characteristics of lias rocks encountered in mining industry of Mecsek mountain, in Hungary, have been determined experimentally; essential component of elastic behavior exists in rocks in which Poisson's ratio is constant, but at increasing loads Poisson's ratio tends towards 0.5, and plastic range becomes apparent; yield condition in unsupported roadway of circular section is deduced; from this are determined critical depth, dimensions of plastic zone around roadway, and plastic and elastic stresses.
Formation of axially symmetrical limit loads around mine roadways of circular section
Int J Rock Mechanics Min Sciences
Horvath, J. (author)
1964
14 pages
2 Plates
Article (Journal)
English
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