Authors: S.M. Prostov, V.V. Kalaigoroda, A.A. Bushuev

Title of the article: Volumetric physical modelling of geoelectric anomalies in the endogenous fire centre area

Year: 2025, Issue: 2, Pages: 26-39

Branch of knowledge: 2.8.8 Mining machines, geotechnology (engineering)

Index UDK: 622.822.22

DOI: 10.26730/2618-7434-2025-2-26-39

Abstract: The urgency of the problem of diagnosing endogenous fires in underground and open pit geotechnologies, the main physical and chemical prerequisites of coal spontaneous combustion, methods of forecasting and locating endogenous fires in near-surface rock-coal massifs are considered. The application of geophysical monitoring methods based on the measurement of anomalies of active and natural electric fields is promising; at the same time, physical modelling is necessary to improve the accuracy of geophysical forecasting. The laboratory physical model is described, in which the correspondence to nature is ensured by the coincidence of schemes, measurement methods, a set of model materials matching the range of electrical properties with nature, as well as the use of geometric similarity. On the basis of the analysis of the experimental data bases, the regularities and interrelationships of the parameters of vertical electrical sounding plots and geoelectric potentials with the depth of location and size of the anomalous source zone at the initial and subsequent stages of spontaneous combustion processes development were established.

Key words: near-surface rock-angular massif endogenous fire electrical sounding geoelectric potential physical model geometric similarity

Receiving date: 23.10.2024

Approval date: 19.05.2025

Publication date: 11.09.2025

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