穿松软高突煤层上向测压钻孔封孔技术工艺探讨  

Discussion about upward pressure-measuring borehole sealing techniques across soft and serious outburst seams

作　　者：耿延辉[1,2] 

机构地区：[1]瓦斯灾害监控与应急技术国家重点实验室,重庆市沙坪坝区400037 [2]中煤科工集团重庆研究院有限公司,重庆市沙坪坝区400037

出　　处：《中国煤炭》2017年第1期104-107,共4页China Coal

摘　　要：针对某矿穿松软高突煤层常规封孔测压过程中出现的问题,分析了影响封孔质量的因素,提出了采用一次开孔一带压注浆一二次开孔的封孔工艺。通过现场试验,有效地封堵了过松软高突煤层的高压力瓦斯及围岩裂隙,提高了测压钻孔的封孔质量,成功解决了过松软高突煤层的瓦斯压力测定问题。Aiming at issues during regular hole-sealing pressure measuring process across soft and serious outburst seams at certain mine, this paper analyzed the influential factors of hole sealing quality and proposed hole-sealing procedures carried out as first boring, pressured grou- ting and second boring. Field application experiment effectively cemented high pressure gas and surrounding rock fractures across soft and serious outburst seams, enhanced pressure-measuring borehole sealing quality and successfully solve the problem of gas pressure measurement across soft and serious outburst seams.

关 键 词：松软高突煤层 测压钻孔 封孔质量 瓦斯压力测定 影响因素 

分 类 号：TD712.53[矿业工程—矿井通风与安全]