О классификации и обусловленности факторов самонагревания углепородного отвала Донбасса

Abstract

A classification of self-heating factors of the Donbass coal dump and a schematic model of their interrelation-ships are proposed in relation to the analysis of search criteria and signs of a man-made coal-type object suit-able for long-term heat extraction. The presented classification makes it possible to distinguish between simple, complex and particularly complex, spatial, temporal and spatio-temporal, external and internal, accelerating and slowing factors of self-heating of dump masses, as well as to systematize the specified factors by the levels of their influence on the thermal state of coal rock dump. The classification is useful in establishing simultaneously acting dominant self-heating factors inherent in the warm, burning and extremely hot states of the coal dump. In the course of study, it was established that factors of self-heating are determined by the mining-geological, mining-technical and natural-climatic conditions of mining and also often mutually agreed. The greatest degree of mutual agreement is possessed by meso-level factors, which include the vital activity of thionic bacteria, oxidative reactions and unsolved heat of coal mining waste. The presented schematic model of the relationships and relationships of the self-heating factors will be useful for analyzing the thermal state of the dump and predicting the dynamics of the geological and ecological situation around the dump, potentially suitable for long-term heat extraction.