Development prospects of natural electromagnetic radiation recording technology to predict geodynamic phenomena in Norilsk mines
https://doi.org/10.21285/2686-9993-2024-47-1-56-65
EDN: MXFKTH
Abstract
The purpose of this study is to analyze the current level of knowledge on the issue of hazardous manifestations of rock pressure in natural electromagnetic fields as well as to assess the possibility of using this phenomenon for forecasting dangerous geodynamic phenomena in the open-pits of the Norilsk ore region.
Modern mining technologies allow to extract minerals from fairly large depths, for example, in Norilsk region mining can be carried out at levels of about 1.5–2 km deep, which significantly exceeds the critical depth of dangerous deformation process manifestations.
The object of the conducted research is the rock massifs of the Talnakh ore cluster in the Norilsk region prone to the manifestation of dangerous geodynamic phenomena.
The deposits of the Norilsk ore region are liable to or dangerous for rock bumps. As the mining depth increases the hazardous geodynamic phenomena intensify, which justifies the need for hazardous phenomena prediction to ensure safe mining operations. The development of geophysical technologies (the electrical prospecting technologies in natural electromagnetic fields to predict seismic events in particular) is an urgent task that will improve the safety of mining operations. Based on the analysis of world experience we can conclude that the use of natural electromagnetic radiation recording to predict changes in the state of a rock massif is promising. Due to the fact that a large number of factors including lithological composition, texture and structure features influence the parameters of natural electromagnetic radiation the forecast technology for a specific mine should be based on the deviation of natural electromagnetic radiation parameters from background values that depend on the mining and geological conditions of the open-pit under investigation.
About the Authors
S. M. Daniliev
Saint Petersburg Mining University
Russian Federation
Russian Federation
Sergey M. Daniliev, Cand. Sci. (Geol. & Mineral.), Associated Professor, Associated Professor of the Department
Geophysics Department
St. Petersburg
O. M. Shnyukova
Saint Petersburg Mining University
Russian Federation
Russian Federation
Olga M. Shnyukova, Postgraduate Student
St. Petersburg
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Review
For citations:
Daniliev S.M., Shnyukova O.M. Development prospects of natural electromagnetic radiation recording technology to predict geodynamic phenomena in Norilsk mines. Earth sciences and subsoil use. 2024;47(1):56-65. (In Russ.) https://doi.org/10.21285/2686-9993-2024-47-1-56-65. EDN: MXFKTH
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