The Role of Zonality of Mining and Geological Parameters of a Mine Field in the Problem of Local Forecasting of Zones Hazardous in Terms of Gas-Dynamic Phenomena

Author details
  • Perm National Research Polytechnic University, Perm, Russian Federation
  • Perm National Research Polytechnic University, Perm, Russian Federation
  • Mining Institute of the Ural Branch of the Russian Academy of Sciences, Perm, Russian Federation

Abstract

The current pace of mining operations does not always ensure uniformity of operational exploration over the area of the mine field to obtain local mining and geological data, which are very important in tasks sensitive to the modeling of the distribution of these data. Local forecasting of gas-dynamic phenomena based on the linear discriminant analysis of mining and geological data is also sensitive to the adequacy of the representation of the distribution of mining and geological parameters in space. In this study, the authors consider the features of solving the problem of local forecasting of zones hazardous for gas-dynamic phenomena in the conditions of a deep potash mine with an uneven distribution of actual mining and geological observations, in which almost a third of the mine field does not have any data, and all observations are concentrated in the eastern and western parts of the mine field. By checking the mining and geological data using the Mann-Whitney criterion, significant differences in the distributions of these data were established, confirming the importance of zonal distribution features that can be explained by differences in the course of epigenetic processes in the salt rock massif in individual sections of the potash mine field. To test the efficiency of separate modeling based on zonal distribution features of mining and geological data, three models of distribution of zones hazardous for gas-dynamic phenomena were created using linear discriminant analysis using local samples of mining and geological data in the eastern and western parts of the mine field, as well as a common data sample. The model created based on the common data sample showed lower classification efficiency of 76.5% compared to the combined efficiency of the models created using local data samples, which was 82.3%. Comparison of standardized coefficients of discriminant functions of the created classification models revealed significant differences in the importance of model predictors, which also indicates the appropriateness of the presented approach to avoid distortions in local forecasting. As the mine field is further explored and a uniform distribution of actual observations is achieved, adequate dependencies of the distribution of the parameters under consideration can probably be identified, which can be integrated into a single model; however, in large areas without data, a separate analysis of the mine field, taking into account the zonal features of the distribution of mining and geological parameters, allows achieving greater accuracy.

Keywords

local forecastingstatistical analysisstatistical criteriongas-dynamic phenomenaclassification problemdiscriminant analysissylvinitepotash mineimportance of predictors

Bibliography

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Article information

Published
24 October 2025
Issue date
24 October 2025
Issue
Vol. 25, No. 3 (2025)
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