定向长钻孔超前预抽煤层瓦斯区域治理技术  

Regional Control Technology for Gas Pre-drainage in Coal Seam by Directional Long Borehole

作　　者：贾明魁 李学臣 郭艳飞 李国栋 JIA Mingkui;LI Xuechen;GU0Yanfei;LI Guodong(Henan Energy and Chemical Industry Group Reseaach Institute Co.,Ltd.,Zhengzhou 450045,China;Jiaozuo Coal Industry (Group)Co.,Ltd.,Jiaozuo 454000,China)

机构地区：[1]河南能源化工集团研究院有限公司,河南郑州450046 [2]焦作煤业(集团)有限责任公司,河南焦作454000

出　　处：《煤矿安全》2018年第12期68-71,共4页Safety in Coal Mines

摘　　要：突出矿井在实施区域瓦斯治理过程中,逐步形成了以保护层开采、底板岩巷穿层抽采等为主的模式,但在部分瓦斯、水"双重"灾害威胁严重的单一坚硬煤层,施工底板岩巷水害问题更为突出,通过实施定向长钻孔超前预抽煤层瓦斯区域治理技术,实现了对煤巷掘进范围煤体的均匀控制,消除了底板突水威胁,为煤巷安全掘进提供了保障。In the process of implementing regional gas control, the outburst mine has gradually formed the main mode of protective layer mining and floor rock roadway through layer extraction. However, in the single hard coal seam where gas and water"double"disasters threaten seriously, the problem of water damage in the roadway of floor rock is more obvious. By implementing the technology of regional control of gas in coal roadway, the uniform control of coal body within the range of coal roadway tunneling is realized, the water inrush threat on the floor is eliminated, and the safety tunneling of coal roadway is guaranteed.

关 键 词：定向钻孔 煤巷条带 区域预抽 效果检验 煤与瓦斯突出 

分 类 号：TD713[矿业工程—矿井通风与安全]