Modeling and monitoring of rock structures on the geotechnical factor in the development of shallow deposits

Abstract

Relevancy. Most of the non-ferrous metal ores are produced by low-productivity and dangerous technology in conditions when high-performance technology cannot be used. The aim of many studies and this work is to find reserves for increasing productivity and safety in the development of such deposits through the use of hidden technology capabilities. The method of investigation is a comparison of the traditional version of ore breakage with new variants of ore breaking in the framework of an industrial field experiment with interpretation of the results obtained. Results. Quantitative values of the efficiency indices of ore breakage from drilling workings are obtained in comparison with the traditional version with the breakage of the ledges and the worked out space. It is proved that the application of the new technology, despite the laboriousness of penetrating the drilling workings, does not worsen the technical and economic performance of the design, radically improving the safety of work. The results obtained are approximated graphically. Conclusions. The indicators of the breakage from the drilling workings outstrip the traditional version of the breakage due to the previously unavailable features of the breakage and placement in the worked out space of the ore, saving the workers from the danger of being in the open worked-out space.

Keywords

• ore
• underground mining
• drilling
• labor productivity
• explosive rebound
• ledges
• drilling
• drifts
• rising