Abstract

Theoretical and experimental studies, conducted at Tomsk State University, have allowed to determine the structure of the wildfire flame. The pyrolysis zones and the zones containing the pyrolysis products and oxygen were found to be the most unstable during combustion of natural high-molecular compounds such as needle litter, herbage, and timber. In this case, if these zones are subjected to the shock waves, then they will be destroyed and the process of combustion will stop. At the same time, the theoretical and experimental studies have shown that the shock waves lead to an increase in pressure in the unstable zones during interaction with these zones, which increases the efficiency of extinguishing a fire. This approach directed to the destruction of unstable zones allows to create the new technical methods and devices for providing the safety of fireman-operators, the environmental safety through conservation of natural resources, and the high efficiency. Similar requirements are met by blasting methods: combined method of localization and suppression of ground forest and steppe fires; line charge for localization and suppression of fires, as well as a disintegrator of a ground forest fire front, technical description and characteristics which are presented in this paper.

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