基于羽状水平分支井的低透松软单一煤层瓦斯抽采技术研究  

Technical Study on Gas Drainage of Soft Single Coal Seam with Low Permeability Based on Horizontal Pinnate Branch Well

作　　者：吴有增[1] 孟磊[2] 姜耀东[2] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [2]中国矿业大学(北京)煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《煤炭工程》2015年第1期78-80,84,共4页Coal Engineering

基　　金：国家重点基础研究发展计划(973计划)资助项目(2010CB226801)

摘　　要：为了解决低透气性松软单一煤层开采的瓦斯积聚和超限问题,以余吾煤业低透气性松软单一的3#煤层为研究对象,通过研究典型工作面瓦斯涌出特征,掌握了来压与瓦斯涌出的相关性,并确定了工作面瓦斯涌出的主要来源,提出并完成了羽状水平分支抽采井的搭建,考察和评价了"羽状水平分支抽采井"的抽采效果。Aiming at the gas accumulation and over- limit in the mining process of a low- permeability soft single coal seam,taking 3#coal seam of Yuwu coal mine as research object,the gas emission characteristics of the typical working face was studied,obtaining the correlation of pressure and gas emission,the main source of gas emission in working face was discovered,the construction of the horizontal pinnate branch well was proposed and completed,and the drainage effect of the horizontal pinnate branch well was investigated and evaluated.

关 键 词：羽状水平分支井 低渗透性 瓦斯抽采 矿压 瓦斯涌出 

分 类 号：TD712.6[矿业工程—矿井通风与安全]