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The Role of Ventilation Schemes for Mining Areas in Ensuring Safe Conditions for the Development of Gas-Bearing Coal Seams

	International Journal of Scientific Research and Engineering Development (IJSRED)	Full Text:
	Published Issue : Volume-4 Issue-2
	Year of Publication : 2021
	Unique Identification Number : IJSRED-V4I2P92
	Authors : Mykhailo Filatiev, Elvira Filatieva, Olha Fursova, Ekaterina Dmitrishina
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Abstract :

Over the past more than fifty years, it has been experimentally established that gas release from sources undermined by treatment works can occur both in the workings and degassing wells of the exploited areas, and outside them into the worked-out space of worked longwalls. It is theoretically substantiated and confirmed by the practice of mining gas-bearing coal seams that the cause of gas release outside the exploited mining areas is the activation (repeated) movement of the undermined coal-rock strata. Additional gas release outside of the exploited mining areas during the activation of rock movement is not considered by modern regulatory documents when developing measures for the safe development of gas-bearing coal seams, which significantly reduces their efficiency. It is a great technical difficulty to single out two components of the gas balance within the boundaries of the exploited excavation area and outside it in mine conditions. The safe development of a coal deposit largely depends on the successful solution of this problem. Until now, the quantitative ratio of gas emission within the boundaries of the operated site and outside it, under the influence of the ventilation schemes used, has not yet been established. Based on experimental observations, a relationship was established between the level of gas release within the boundaries of excavation areas and beyond, depending on the ventilation schemes used.