Increased in recent years, the flow of information on the impact of thermal phenomena on the movement of air in the mine during a fire is mainly theoretical in nature. Experimental studies are rare. In the study of phenomena related to the manifestation of thermal depression, the relationship between thermal depression and the amount of passing air, the temperature in the seat of the fire and the location of the fire has not received adequate coverage.

In contrast to the previously used mine-wide indicator of the number of fires per 1 million tons of production in statistical analyses, this study used the seam fire frequency coefficient, which characterizes the number of fires per 1 million tons of production from a given seam. The point is that the mine-wide indicator of the number of fires per 1 million tons of production correctly reflects the actual state, provided that the number of fires from the seams developed by the mine is distributed evenly over all seams. In practice, however, such a situation does not happen. ...

Localization of fire sources is one of the main measures preceding the active extinguishing of fires occurring in underground workings through which fresh air is supplied to workplaces or along which the return air stream moves. Such measures have been developed mainly for cases of opening at a single horizon. They are often automatically transferred to mines with two, three or more horizons, which leads to catastrophic consequences ...