Geomechanical justification for carrying out mining operations in rockburst hazardous ore deposits

DOI: https://doi.org/10.30686/1609-9192-2023-S1-04-13

A.A. Kozyrev Mining Institute, Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation Russian Mining Industry №S1 / 2023 р. 04-13

Abstract: The article justifies the topicality of studying man-induced seismicity during large-scale mining operations in rockburst hazardous ore deposits. Occurrence conditions have been formulated for natural and man-caused earthquakes as well as various mechanisms of strong seismic events. It is shown, that revealing the stressed state of the intact rock mass, possible deformations and additional stresses due to large-scale rock mass excavation as well as the conditions for the accumulated energy to release due to the impact of blasting activities during roadheading and ore breaking are considered to be very important. Criteria are considered for various forms of rock failure during strong seismic events. A methodology to identify critical states of the geological environment is proposed to assess the geomechanical situation in the mining area and to manage the geodynamic risks. This methodology allows to give a forecast assessment of changes in the stress-and-strain state of the rock mass based on analyzing mining and geological data of instrumental measurements and finite element modelling as well as to select technical solutions to ensure the safety of mining operations. Principles of safe mining operations at rockburst hazardous deposits are formulated, approaches to the choice of the mining system for the ore deposits and to the order of stoping operations at the mine level are justified.

Keywords: mineral deposits, rockburst hazardous deposits, stresses, man-induced seismicity, fracture mechanism, safety

For citation: Kozyrev A.A. Geomechanical justification for carrying out mining operations in rockburst hazardous ore deposits. Russian Mining Industry. 2023;(1 Suppl.):04–13. https://doi.org/10.30686/1609-9192-2023-S1-04-13

Article info

Received: 19.02.2023

Revised: 02.03.2023

Accepted: 04.03.2023

Information about the author

Anatoly A. Kozyrev – Dr. Sci. (Eng.), Professor, Chief of Rock Mechanics Department, Mining Institute, Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

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