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红卫煤矿是全国瓦斯最严重的矿井之一。瓦斯灾害表现在两个方面:一是采掘工作面瓦斯超限;二是煤与瓦斯突出,后者是威胁矿井安全生产的主要方面。建井以来发生煤与瓦斯突出达320余次,其中千吨以上特大型强度的突出达14次,占全国四分之一以上,如坦家冲井投产以来统计,每产万吨煤其突出煤量就达275t,百米成巷(指一分层煤巷,石门揭煤、煤门和切眼)煤与瓦斯突出机率达2.8次,严重阻碍生产发展。
Hongwei Coal Mine is one of the worst coal mines in the country. Gas disaster is manifested in two aspects: one is gas overrun in the digging face; the other is outburst of coal and gas, the latter is the main aspect threatening mine safety production. Over 320 coal and gas outbursts have occurred since the well was built, of which over ten thousandths of extra-large intensity have been outstanding, accounting for more than a quarter of the country’s total. For example, since the Tangjiagang well put into operation, its output per ton of coal has been outstanding Coal reached 275t, 100 meters into the alley (referring to a stratified coal lane, Shimen exposed coal, coal and cut eye) the probability of coal and gas outburst up to 2.8 times, seriously hindering the development of production.