Deformational Criteria for the Stability of Roof Rocks and Rock Bolts
M. A. ROZENBAUM, D. N. DEMEKHIN
National Mineral Resources University (University of Mines), VO 21-ya liniya 2, Saint-Petersburg, 199106 Russia
Keywords: mine working, rock bolts, stage-wise rock bolting, stability, permissible displacements, critical displacements, equivalent material model
Abstract
The authors discuss issues of stage-wise rock bolting of mine workings. Using equivalent material models, permissible roof rock lamination for roof bolting in conformity with the excavation support standards is evaluated. The critical displacements of roof rocks that make stage-wise roof bolting impossible are calculated.
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