A comprehensive analysis of results obtained in monitoring pit bench stability using geophysical survey methods

DOI: https://doi.org/10.30686/1609-9192-2023-5S-87-92

Читать на русскоя языкеV.V. Rybin, A.I. Kalashnik, K.N. Konstantinov, A.Yu. Dyakov, Yu.A. Startsev, D.V. Zaporozhets
Mining Institute Kola Science Centre of the Russian Academy of Sciences, Apatity, Russian Federation
Russian Mining Industry №5S / 2023 р. 87-92

Abstract: The Response to challenges related to safety in open-pit mining of mineral deposits is based on continuous monitoring of the pit wall stability as a whole as well as the stability of problematic areas of the pit wall and individual benches. Control of the geomechanical state of the adjacent rock mass using local geophysical methods plays an important role in the overall monitoring of stability of the open-pit elements. The control allows studying in more detail the state of benches and groups of benches in critical areas of the open-pit and developing measures to ensure production safety on this basis. One of the main interdependent factors affecting the pit wall stability is, on the one hand, the size of the disturbed zone that depends on both natural and mining-induced rock fracturing; on the other hand, the level of ground water changing over time depending on the season. The importance of joint account of the factors above has stipulated to propose a comprehensive methodical approach to study water saturation and structural disturbance of rocks in the wall of a deep open-pit. The method consists in periodic, seasonally synchronized, geophysical studies using seismic profiling and GPR sounding and allows identifying the areas of high water saturation and disturbance in the adjacent rock mass. The methodological approach makes it possible to estimate the effect of the main time-varying impact factors (water saturation, natural and mining-induced disturbance, anomalies of physical properties of the rock mass) on the slope stability and provides a scientific and technical basis for developing engineering measures to improve the safety of deep open-pit mining.

Keywords: geomechanics, geo-fluid mechanics, open-pit ore mine, Poisson's ratio, modulus of elasticity, water saturation, structural geology, seismic method, georadiolocation, complexing

For citation: Rybin V.V., Kalashnik A.I., Konstantinov K.N., Dyakov A.Yu., Startsev Yu.A., Zaporozhets D.V. A comprehensive analysis of results obtained in monitoring pit bench stability using geophysical survey methods. Russian Mining Industry. 2023;(5S):87–92. https://doi.org/10.30686/1609-9192-2023-5S-87-92

Article info

Received: 05.10.2023

Revised: 07.11.2023

Accepted: 20.11.2023

Information about the authors

Vadim V. Rybin – Dr. Sci. (Eng.), Associate Professor, Chief of Laboratory of Geomonitoring and Slope Stability, Rock Mechanics Department, Mining Institute Kola Science Centre of the Russian Academy of Sciences, Apatity, Russian Federation

Anatolii I. Kalashnik – Cand. Sci. (Eng.), Mining Institute Kola Science Centre of the Russian Academy of Sciences, Apatity, Russian Federation

Konstantin N. Konstantinov – Researcher, 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.

Andrey Y. Dyakov – Researcher, Mining Institute Kola Science Centre of the Russian Academy of Sciences, Apatity, Russian Federation

Yury A. Startsev – Researcher, Mining Institute Kola Science Centre of the Russian Academy of Sciences, Apatity, Russian Federation

Dmitry V. Zaporozhets – Researcher, Mining Institute Kola Science Centre of the Russian Academy of Sciences, Apatity, Russian Federation

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