USING ACOUSTIC MEMORY EFFECT FOR EVALUATION OF STRESS STATE OF FRACTURED HARD ROCKS
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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