Research of extraction indicators influence on the efficiency of underground mining of low-grade complex ore deposits

DOI: https://doi.org/10.30686/1609-9192-2022-1S-46-52

Yu.G. Antipin, K.V. Baranovsky, A.A. Rozhkov, I.V. Nikitin, Yu.M. Solomein Institute of Mining of Ural Branch of RAS, Ekaterinburg, Russian Federation Russian Mining Industry №1S / 2022 р. 46-52

Abstract: The steady depletion of valuable ore reserves dictates the need to replenish the raw material base of mining enterprises through the transition to the mining of deposits or their sections, represented by low-grade ores. In the prevailing mining and geological conditions, such deposits are mainly mined by low-cost technologies with caving of ores and host rocks, characterized by significant losses and dilution (25–30%), which does not meet the basic principle of rational use and protection of subsoil, i.e. the most complete and complex extraction of natural resources. In order to solve this problem, the development and substantiation of technical solutions for improving the mining technology of low-grade complex ores was carried out on the basis of studies of losses and dilution indicators influence on the recoverable value and operating costs of the processes. The analysis of the obtained dependencies made it possible to determine the nature and degree of subject influence on the research object, as a result of which the main directions of improving the underground mining systems for the conditions under consideration were established. A variant of the combined mining system has been designed, which provides for the formation of open stoping with a trench bottom, forced caving of stable overlying rocks and mining of pillars by level caving. The research of influence of the structural elements of combined mining system parameters showed the technical possibility of reducing losses and dilution of ore by 2.5 and 2 times. The annual potential economic effect is more than 1.5 billion rubles with a mine capacity of 1.2 million tons.

Keywords: subsoil protection, complex ores, mining system, extraction indicators, recoverable value, operating costs, open stoping, pillar, level caving

Acknowledgments: The work was carried out within the state assignment of the RF Ministry of Science and Higher Education No. 075-00412-22 PR. Topic 1. FUWE-2022-0005.

For citation: Antipin Yu.G., Baranovsky K.V., Rozhkov A.A., Nikitin I.V., Solomein Yu.M. Research of extraction indicators influence on the efficiency of underground mining of low-grade complex ore deposits. Gornaya promyshlennost = Russian Mining Industry. 2022;(1 Suppl.):46–52. DOI: 10.30686/1609-9192-2022-1S-46-52.

Article info

Received: 02.10.2021

Revised: 16.10.2021

Accepted: 22.10.2021

Information about the authors

Yuri G. Antipin – Candidate of Technical Sciences, Head of the Laboratory of Underground Geotechnology, Institute of Mining of Ural Branch of RAS, Ekaterinburg, Russian Federation; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Kirill V. Baranovsky – Candidate of Technical Sciences, Senior Researcher, Laboratory of Underground Geotechnology, Institute of Mining of Ural Branch of RAS, Ekaterinburg, Russian Federation

Artem A. Rozhkov – Candidate of Technical Sciences, Senior Researcher, Laboratory of Underground Geotechnology, Institute of Mining of Ural Branch of RAS, Ekaterinburg, Russian Federation

Igor V. Nikitin – Researcher, Laboratory of Underground Geotechnology, Institute of Mining of Ural Branch of RAS, Ekaterinburg, Russian Federation

Yuri M. Solomein – Researcher, Laboratory of Underground Geotechnology, Institute of Mining of Ural Branch of RAS, Ekaterinburg, Russian Federation

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