汾西煤矿水力冲孔钻孔有效抽采半径测定  

Determination of effective drainage radius of hydraulic punching borehole

作　　者：李录标 BAI Yaguang(Shanxi Jingu Coal Industry Corporation Ltd,Linfen 042400,China)

机构地区：[1]冀中能源邢矿业集团山西古县金谷煤业有限公司安全部,山西临汾042400

出　　处：《煤矿现代化》2022年第2期89-93,共5页Coal Mine Modernization

摘　　要：为了提高汾西煤矿瓦斯抽采效率,在汾西煤矿1513下巷底板抽放巷、1515下巷底板抽放巷以及1511采区分别施工一个流量测试钻孔,用来考察水力冲孔抽采半径。研究结果表明:采用流量法与瓦斯含量法考察结果基本一致,为保证瓦斯抽采的可靠性和安全性,选择较小的测试结果作为煤层的有效抽采半径。研究结果可为汾西煤矿15号煤层瓦斯抽采设计提供依据。In order to improve the gas drainage efficiency of Fenxi Coal Mine,a flow test borehole was constructed in the floor drainage roadway of 1513 lower roadway,the floor drainage roadway of 1515 lower roadway and the 1511 mining area in Fenxi Coal Mine to investigate the drainage radius of hydraulic punching.The research results show that the investigation results of flow method and gas content method are basically the same.In order to ensure the reliability and safety of gas extraction,a smaller test result is selected as the effective extraction radius of coal seam.The research results can provide basis for gas drainage design of No.15 coal seam in Fenxi Coal Mine.

关 键 词：瓦斯治理 钻孔抽采 有效抽采半径 水力冲孔 

分 类 号：TD712[矿业工程—矿井通风与安全]