G. A. Bimurzaev, A. M. Akhunzhanov, E. Sh. Kurbanov

Predictive assessment of ore deposit geotechnical conditions in the Central Kyzylkum region

Abstract. Predictive assessment of geotechnical conditions for developing mineral deposits is topical. There are identified objects where the following hazards may arise: deformations and quarry wall slip, roof caving of underground mines, and rock extrusion into the mined-out space. The analysis determines a set of criteria for predicting geotechnical hazards in the region’s mines and quarries. There are two large groups of well represented faults in the ore field: regional fault structures that intersect the entire ore field area and extend far beyond it, as well as local faults mainly developed in the upper part of the region’s fault wings, and having different sizes and directions. Disjunctive fault dislocation combinations determine the ore field structure in the Central Kyzylkum ore deposits. The ore-bearing stratum specifies heterogeneous interbedding, irregular secondary alterations, differences in physical and mechanical properties, which complicate geotechnical conditions of the deposit development. The analyzed and summarized geotechnical data contributes to creating a predictive assessment map of mineral deposits geotechnical conditions.

Keywords: predictive assessment, analogies, hazards, criteria, faults, deformations, intensity, fracturing