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随着开采深度的增加及综采机械化的发展,开采强度不断增大,矿井瓦斯涌出量逐年增多,这不仅增加了通风负担,而且阻碍综采效率的发挥。采用抽放方法处理矿井瓦斯,可在不增加通风负担的情况下使矿井瓦
With the increase of mining depth and mechanization of fully mechanized coal mining, the strength of mining has been continuously increased and the gas emission from mines has increased year by year, which not only increases the ventilation load but also hinders the efficiency of fully mechanized mining. The use of drainage methods for mine gas can be increased without increasing the ventilation load of mine