New methods of extinguishing spontaneous fires in mines of the kuznetsk coal basin

Abstract

made it possible to optimize the parameters of the technology of formation of the ice mass under conditions of a deposit [2] being worked in the permafrost zone: cooling of the mine air -15~ air speed 4-5 m/sec; thickness of the layer being frozen during one cycle 0.2 m; water temperature before filling into the chamber +0.5 to 1.0~