Territorial zoning of mineral deposits by initial stresses

Mining is a sphere of human activity associated with extraction of minerals from the subsoil under conditions of alternating stresses and strains which can induce sudden failure of mine structures as well as earthquakes. The results of the long-term geodeformation monitoring of natural stresses in mines in the Urals, carried out by the Laboratory of Geodynamics and Rock Pressure at the Institute of Mining, Ural Branch of the Russian Academy of Sciences over the past 20 years, and the analysis of measurement data collected for 55 years in the major mining regions of the world have afforded ground for suggesting a new structure of the natural stress field with regard to temporal variations. The test subject of this research is the stress state of rock mass at subsoil use sites in the main mining countries of the world. Prediction of the place and time of a hazardous event caused by overlying rock mass pressure is currently one of the most critical tasks. The annual expansion of the precaution activity scope at almost unchanged number of geodynamic phenomena and the increase in the relative number of rock bursts indicates the low effectiveness of traditional measures to prevent rock bursts. This situation necessitates development of new methods for forecasting and preventing rock burst hazard. The analysis of mining experience shows that tectonic faults are the stress raisers which bring significant heterogeneity in the stress field in rock mass, which often leads to emergencies when extraction approaches disjunctives.

Keywords: physical and mechanical properties, rock mass, stress state, tectonic stresses, longterm geodeformation monitoring, concrete, geological cycles, stress generation patterns per mines in Russia.
For citation:

Zubkov A. V., Sentyabov S. V., Krinitsyn R. V., Selin K. V. Territorial zoning of mineral deposits by initial stresses. MIAB. Mining Inf. Anal. Bull. 2021;(5—2):80—92. [In Russ]. DOI: 10.25018/0236_1493_2021_52_0_80.

Acknowledgements:

The study is implemented under State Contract No. 075-00581-19-00, Topic No. 0405-2019-0007.

Issue number: 5
Year: 2021
Page number: 80-92
ISBN: 0236-1493
UDK: 622.81
DOI: 10.25018/0236_1493_2021_52_0_80
Article receipt date: 15.12.2020
Date of review receipt: 01.03.2021
Date of the editorial board′s decision on the article′s publishing: 10.04.2021
About authors:

Zubkov A. V.1, Dr. Sci. (Eng.), Chief Researcher, e-mail: sentyabov1989@mail.ru;
Sentyabov S. V.1, Cand. Sci. (Eng.), Senior Researcher, e-mail: sentyabov1989@mail.ru;
Krinitsyn R. V.1, Head of laboratory, e-mail: Roman_krinicyn@mail.ru;
Selin K. V.1, Researcher, e-mail: stress.igd@mail.ru;
1 Institute of Mining of Russian Academy of Sciences, Ekaterinburg, Russia.

 

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