水力冲孔造穴技术在新景矿3107辅助进风巷中的应用  

Study on application of hydraulic punch Jintian Point technique in 3107 Auxiliary inlet ventilation roadway of Xinjing coal mine

作　　者：荆伟 JING Wei(Shanxi Xinjing Coal co.,LTD,Shanxi Yangquan 045000)

机构地区：[1]山西新景煤业有限责任公司

出　　处：《煤矿现代化》2019年第5期37-39,43,共4页Coal Mine Modernization

摘　　要：针对新景矿所采3号煤层瓦斯含量高、透气性差、生产过程中易发生煤与瓦斯突出问题,选择在3107工作面辅助进风巷进行水力冲孔造穴试验,现场工程实践结果表明:造穴后煤层透气性得到很大程度的改善,预抽瓦斯浓度得到明显提高,消除了激发瓦斯突出的应力和条件,有显著的防突作用效果。In view of the high gas content,poor permeability and coal and gas outburst in the production process of No.3rd coal Seam in the new scenic spot,the test of hydraulic punching Jintian point in the auxiliary inlet Tunnel of 3107 working face is made,and the field engineering practice results show that the permeability of coal seam is improved greatly and the gas concentration of pre-extraction is obviously improved.The stress and condition of the excited gas outburst are eliminated,and the effect of anti-outburst effect is remarkable.

关 键 词：高瓦斯 透气性差 煤与瓦斯突出 水力冲孔 防突 

分 类 号：TD712.6[矿业工程—矿井通风与安全]