本煤层钻孔抽采瓦斯的效果评价及优化分析

Effect Assessment and Optimization Analysis of Drilling Gas Extraction in Mining-coal Bed

对大顺煤矿C5b煤层的瓦斯抽采进行了效果评价,找出抽采过程中存在的问题,并在此基础上对抽采方法和布孔方式进行了优化分析,设计了增加瓦斯抽采钻场,丰富钻孔布置方式的改善措施。

This paper firstly evaluates the gas extraction at C5b coal seam of Dashun Mine, and finds out the problems in the process of gas extraction. On the basis of this, the paper optimizes the methods of gas extraction and the pattern of the boreholes, designs the meliorative measure for increasing the drillsite of gas extraction and enriches the pattern of the boreholes.