论文部分内容阅读
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 evaluates the effect of gas drainage in C5b coal seam of Dashun Coal Mine and finds out the problems existing in the extraction process. Based on this, the optimization of drainage method and drilling method is carried out. , Rich arrangement of drilling arrangements to improve measures.