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NEW APPROACH TO ASSESSMENT OF MINE WORKING STABILITY
Abstract
Based on experimental data analysis and obtained by the author novel solutions on distribution of stress fields and deformations in rock mass enclosing mine workings it is shown that in the course of deformation rock mass undergoes successively discrete series of states that correspond to a definite ratio of physical-mechanical properties of rock mass and rock pressure level. It is determine that when an outline of mine working is deformed by 12-18\%, the latter bifurcates (looses its stability) that corresponds to bifurcational solutions for plasticity equations.
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