Fining the technology for underground complex ore mining with a view to improving production capacity of a mine

Currently operating Korbalikha Mine uses the cut-and-fill system. This system features high efforts connected with heading and obligatory mine support as mine personnel is always present in stoping area. Low productivity of labor impedes enhancement of the mine and processing plant output within 5 years by the target and sharp improvement of the mine production capacity after launching operations in an area hosting thicker ore bodies. This research aims to find alternative mining systems to conform with the local geological and geotechnical conditions, and to ensure the required effectivization of labor. Based on the analysis of geological and geotechnical conditions of the test mine, and experience of mining in the same or similar conditions, the alternative, safe and efficient systems of mining were selected. The geomechanical justification of structural design of the mining system components was carried out, and the mining process flows were developed for the geological and geotechnical conditions of a test extraction panel. As a result, four mining systems alternatives mean to ensure stoping productivity were proposed for the further economic mathematical modeling. The basic requirements imposed on the alternatives included: elimination of personnel in stoping area, borehole blasting and high production output. The proposed technologies can help the mine to increase productivity 1,2–3,7 times.

Valiev N. G., Propp V. D., Berkovich V. Kh., Shadrin D. M., Baranovsky K. V. Fining the technology for underground complex ore mining with a view to improving production capacity of a mine. MIAB. Mining Inf. Anal. Bull. 2021;(11-1):15—26. [In Russ]. DOI: 10.25018/02 36_1493_2021_111_0_15.

Valiev N. G.¹, Dr. Sci. (Eng.), Professor, Head of the Department of Mining;
Propp V. D.¹, Cand. Sci. (Eng.), Associate Professor, Professor at the Department of Mining, e-mail: Vladimir.propp@mail.ru;
Berkovich V. Kh.¹, Cand. Sci. (Eng.), Associate Professor at the Department of Mining;
Shadrin D. M.¹, Research Engineer, Commercial R&D Department;
Baranovsky K. V.¹, Cand. Sci. (Eng.), Senior Researcher, Underground Geotechnology Laboratory;
¹ Ural State Mining University, Yekaterinburg, Russia;
² Institute of Mining, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia.

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