综放工作面顶板走向瓦斯抽放孔施工的实践与认识  

Practice and Cognition of Gas Drainage Hole Construction Along Roof Trend in Fully Mechanized Caving Coal Face

作　　者：吴宏生[1] 吴增云 张贵忠[1] 蔡君[1] 

机构地区：[1]皖北煤电集团公司任楼煤矿,安徽淮北235123

出　　处：《煤炭技术》2006年第10期59-61,共3页Coal Technology

摘　　要：任楼煤矿7215工作面在回采过程中,工作面上隅角后部车场及上出口挑棚处瓦斯涌出量较大,频繁出现瓦斯超限,在工作面周期来压时更为严重,工作面只能被动停产。根据该矿的实际情况,吸取兄弟矿的工作经验,决定采用与风巷正交施工抽放孔,钻场在顶板,然后沿走向施工抽放孔,进行顶板走向钻孔抽放瓦斯的工作。In the process of mining of 7215 working face, flow value of gas is so higher that. It is more serious when periodic mine ground pressure coming, and the working face must stop mining. Based gas often overruns in the top comer on the facts of Renlou Coal Mine and the experience of other mines. The gas drainage holes are constructed in the way of the orthogonal wind roadway. The effect of this way obvious and the working face was safety.

关 键 词：瓦斯抽放孔 钻孔参数 封孔 

分 类 号：TD712[矿业工程—矿井通风与安全]