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通过对沁城煤矿煤层瓦斯赋存特征的分析,认为沁城煤矿具备建立瓦斯抽放系统的必要性;2#属于可以抽放煤层,具备抽放煤层瓦斯的条件。根据对2#煤层的瓦斯涌出量预测及矿井开采技术条件,最终确定适合沁城煤矿的合理抽放方案。
Based on the analysis of gas occurrence characteristics of coal seams in Qincheng Coal Mine, it is considered that Qincheng Coal Mine has the necessity of establishing gas drainage system; and 2 # belongs to the condition that coal seam can be drained and coalbed methane is drained. Based on the prediction of gas emission from 2 # coal seam and the technical conditions of mine mining, a reasonable drainage scheme suitable for Qincheng coal mine is finally determined.