Gas balance of vorkuta mines
Abstract
Further development of the coal industry is connected with the transition of a number of coal basins of the USSR to deeper horizons. Inevitable consequence of this is the deterioration of atmospheric conditions of mine workings, mainly due to the increase in gas content and temperature rise, in connection with which the fight against gas emission and the creation of normal working conditions in gas-intensive cleaning and preparation faces of coal mines are becoming more and more urgent. There is a necessity to determine the differential gas emission of the operating and newly opened horizons with its division into cleaning faces, preparatory workings and mined-out space. This is caused by the necessity to apply active methods of control and management of gas emission at deep horizons (methane degassing, changing the sequence of mining of adjacent formations, selection of ventilation schemes for excavation areas).
References
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