郑煤集团超化煤矿高位钻孔瓦斯抽采应用  

High-level Drilling Gas Extraction Application of Super Chemistry Coal Mine in Zhengzhou Coal Group

作　　者：郭建峰[1] 于泰鹏 汤明红 陈利 

机构地区：[1]郑煤集团金龙煤业公司,河南巩义451271 [2]河南省煤炭地质勘察研究总院,河南郑州450000

出　　处：《资源导刊（地球科技版）》2013年第11期49-50,共2页

摘　　要：针对超化煤矿在工作面回采期间出现瓦斯超限导致回采速度较慢、安全系数降低等不利因素，通过采取高位钻孔抽采裂隙带瓦斯和埋管抽采采空区深部瓦斯等综合治理措施，使采空区内瓦斯大部分通过抽采孔排出，工作面上隅角瓦斯浓度降低到了0．4％以下，回风流的瓦斯浓度一直在0．2％左右；达到预期的效果，取得了良好的经济和社会效益。Aimed at the adverse factors such as slow recovery speed caused by gas transfinite during the recovery of super chemistry coal mine on the working surface and the reduction of safety coefficient, comprehensive control measures are adopted such as fissure zone gas extraction by high-level drilling and deep goal gas extraction through buried pipes and so on, making the goaf gas discharge mostly through extraction holes, with the gas concentration in the upper corner of the working surface down to below 0.4%, and the gas concentration of return current having been about 0.2%2 the expected effect is achieved, and also good economic and social benefits.

关 键 词：走向长壁采煤法 高位钻孔 瓦斯抽采 裂隙带 

分 类 号：TD712.6[矿业工程—矿井通风与安全]