高瓦斯坚硬厚煤层综放开采瓦斯治理技术研究  

Study on Gas Control Technology for Fully Mechanized Top Coal Caving Mining in High Gas, Hard and Thick Coal Seam

作　　者：黄义通 戴华宾 孙翔 冀红娟 HUANG Yi-tong;DAI Hua-bin;SUN Xiang;JI Hong-juan(Liuhuanggou Coal Mine,Yankuang Xinjiang Mining Co.,Ltd.,Changji 831100,China;College of Mining and Safety Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]兖矿新疆矿业有限公司硫磺沟煤矿,新疆昌吉831100 [2]山东科技大学矿业与安全工程学院,山东青岛266590

出　　处：《煤炭技术》2019年第2期94-96,共3页Coal Technology

摘　　要：(9_(-15))06工作面为高瓦斯坚硬厚煤层赋存,针对工作面回采期间回风流中瓦斯浓度超限,影响工作面安全正常回采等问题,提出了回采前期利用水压致裂预裂钻孔预抽煤层瓦斯,回采期间采用顶板高位钻场施工走向长钻孔的方式抽放瓦斯。实践结果表明,通过采取预抽瓦斯与采空区瓦斯治理相结合的方法,回风流中瓦斯浓度处于较低水平未出现瓦斯超限等情况。The(9-15) 06 working face is a high gas hard thick coal seam,in view of the excess gas concentration in the return air flow during the recovery period of the working face,it affects the safety and normal recovery of the working face. During the mining period, the roof drilling is used to drill the gas to the long borehole. The practice results show that the gas concentration in the return air is at a lower level and the gas is not limited by the means of combining the pre-gas extraction with the gas control in the goaf.

关 键 词：坚硬厚煤层 高瓦斯 放顶煤开采 瓦斯预抽 

分 类 号：TD712[矿业工程—矿井通风与安全]