Substantiation of process schemes of field development taking into account technogenic conversion

Abstract

Introduction. Mining disturbs the natural state of the rock mass. Besides, the field reserves are of a different degree and nature of man-induced changes, which directly affects mining prime cost and ore marketable value. The scientific and practical relevance of the research consists in ensuring increased completeness and economic efficiency of field development by applying the development systems of different classes and taking into account the man-induced changes in reserves in mining dynamics. Research aim is to substantiate the technological schemes of mining, that take into account the possibility and feasibility of developing the reserves which have been affected by the man-induced changes, in particular when switching from one class of development systems to another. Research methods. In this research, based on the analysis of the mining and geological conditions of copper sulfide deposits, economic and mathematical modeling of developing an ore deposit by development systems of different classes was carried out, and the man-induced changes in underground reserves in the process of mining were taken into account. Results. Based on the modeling results, it was found that the increase in the economic efficiency of the deposit development is provided by justifying the type, sequence, and limits of applying different geotechnologies related to different classes of development systems within the entire deposit and a separate ore body. Conclusion. The research results can be used when designing fields in terms of selecting and substantiating the applied development systems.