USING ACOUSTIC MEMORY EFFECT FOR EVALUATION OF STRESS STATE OF FRACTURED HARD ROCKS
a:2:{s:4:"TYPE";s:4:"HTML";s:4:"TEXT";s:116:"L. S. Shamganova1, V. N. Toksarov2, N. A. Samodelkina2, S. V. Kuz’menko3";}
1Kunaev Institute of Mining, Almaty, Republic of Kazakhstan
2Mining Institute, Ural Branch of Russian Academy of Sciences, Perm, Russia
3JSC SSGPO, Rudny, Republic of Kazakhstan
Keywords: Массив, напряжения, боковое давление, устойчивость, моделирование, свойства, Rock mass, stresses, lateral pressure, stability, modeling, properties
Abstract
For the design of deepening of the Sarbaisky and Yuzhno-Sarbaisky quarries and involvement of new deposits into development, a detailed study of the geomechanical conditions of ore mining was required. In order to clarify the geomechanical model of the Sarbaisky quarry, the stress-strain state of the rocks was evaluated. The stresses in the adjacent rock mass were monitored using the Kaiser effect in rocks during loading of the borehole walls with a Goodman hydraulic jack. For the Yuzhno-Sarbaisky quarry, mathematical modeling by the finite element method in three-dimensional formulation was carried out.
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