Research into technology of fastening the mine workings in the conditions of unstable masses

Purpose.Determination of the rock stability along strike mass, where drift mining horizon -480 m is conducted, considering possibility using improved types supports in conditions 10th Anniversary Kazakhstan’s Independence mine at Khromtau field with substantiation effective type fastening that increases technical and technological, operational economic indicators mine. Methods. Numerical modelling stress-strain state mass applied have been performed RS2 software a two-dimensional formulation. The state, as well physical-mechanical properties rocks are determined according to building codes regulations (SNiP II-94-80), depending on category stability. Findings. It has revealed combined from bolts shotcrete most rational studied efficiency prospects determined, which ensure decrease their material consumption cost while increasing reliability workings labor productivity miners. use support allows increase economy materials for by 1.7 times, drifting rate 1.6 times comparison metal support. Originality.The paper proposes new approach an method comparing costs when driving horizontal underground mining-and-geological Practical implications.The research results can be used planning operations, particular, stable methods Khromtay deposit, other enterprises similar conditions.