Reduction of ore dilution when mining low-thickness ore bodies by means of artificial maintenance of the mined-out area

Purpose. The research purpose is to study the effectiveness of artificial maintenance mined-out space based on use cable bolts reduce dilution coefficient when mining low-thickness ore bodies. Methods. Geotechnical mapping rock mass according Q, RMR, RQD and GSI rating classifications conducted, as well a linear survey fracture system in hanging wall footwall rocks performed using compass GEO ID application. Numerical analysis by limit equilibrium method Unwedge software package applied determine safety factor divided fractures into wedges. Using Schmidt test hammer, uniaxial compressive strength has been determined. full-scale studies have conducted support conditions Akbakai deposit. Findings. It revealed that are stable state, while 0.98, which requires bolts. parameters calculated taking account nonuniform distribution horizontal vertical stresses mass. determined strengthening with inclined veins dip angle up 40º, average 66.1%, previously mined without fastening 68.7%. In similar experiments steep-dipping more than 60º, decreases from 62.8 48.7%. Originality. deposit, effective at an deposit decreases. Practical implications. results can be used increase stability bodies sublevel caving system.