摘要
介绍了磨心坡煤矿采用穿层正向钻孔抽放瓦斯及穿层反向钻孔抽放瓦斯的情况,提出了增设反向钻孔抽放可显著提高瓦斯抽放率。
This paper gives a description of methane drainage with crossing for-war d and reverse holes in Moxinpo Coal Mine and puts forward that the methanedrainage rate can be remarkably increased by adding reverse holes.