RESULTS OF THE STUDY OF RESIDUAL STRESSES OF ROCKS FROM THE AREAS OF FAULT ZONES OF THE SIDES OF THE CENTRAL QUARRY OF THE KUMTOR MINE

Abstract

The results, conclusions and methods of studying the physical and mechanical properties of Kumtor gold deposit rocks are presented in the article. The main objective of the research is to determine the residual stresses in samples taken from the fault zones of the Kumtor mine pit wall. The research revealed that in the samples of gray, dark gray carbonaceous phyllites made from the L-2 sample, residual stresses are insignificant (maximum value of 17 MPa), while in the samples of gray, dark gray phyllites there are significant residual stresses (50 MPa). It was established that the rocks of the fault zones of the Central pit wall of the Kumtor mine contain non-uniform residual compressive and tensile stresses, which in many rocks of the mine are practically in equilibrium with each other. It is proposed to determine the resulting stresses acting on the rock mass for the corresponding sections of the quarry wall using the polarization-acoustic method, taking into account the experimentally determined gravitational component, as well as the values and signs of the residual stresses.