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本文介绍了煤层中瓦斯释放和运移的基本原理,阐述了长壁采煤工作面的应力和裂隙分布,分析了影响瓦斯抽采效率的因素,并对英国矿井两种不同开采方式下的瓦斯抽采进行了比较。
This paper introduces the basic principles of gas release and migration in coal seam, expounds the stress and fracture distribution of longwall coal mining face, analyzes the factors that affect the gas drainage efficiency, and analyzes the gas under two different mining methods Pumping has been compared.