采空区瓦斯抽放方法分析  

Analysis of Method of Methane Drainage in Gob

作　　者：李晓泉[1] 田辉鹏[2] 

机构地区：[1]广西大学资源与冶金学院,南宁530004 [2]广西电力职业技术学院,南宁530007

出　　处：《煤炭技术》2012年第1期131-133,共3页Coal Technology

基　　金：广西大学科研基金项目(DD1330008)

摘　　要：分析了高抽巷的布置方式:应布置岩性相对稳定,裂隙带的中、下部位置,且岩层硬度不是很大,便于施工的位置;提出了高抽巷抽放控制方法。确定了高位钻场的钻孔倾角、封孔长度、钻场间距及有效抽放时间等参数,并明确了钻孔失效的瓦斯浓度判定方法。The arrangement methods of high drainage roadway are analyzed.It should be selected at relatively stable and middle-lower part of fractured zone,relatively small rock hardness,convenient for construction.The control method of methane drainage of the high drainage roadway is put forward.The parameters of high location drilling field are determined including inclination of borehole,sealed borehole length,drilling field distance and effective drainage time.The methane concentration judgment method of borehole failure is defined.

关 键 词：采空区 瓦斯抽放 高抽巷 高位钻场 

分 类 号：TD263.4[矿业工程—矿井建设]