摘要
通过对鹤煤九矿原有封孔工艺中存在的问题进行分析,针对封孔中存在的封孔剂定位、注浆量控制以及不同倾角下钻孔封孔漏气等问题,对封孔工艺进行了改进,经现场试验对比,新封孔工艺能有效地提高封孔效果。
Through analyzing the No.9 coal mine＇s original hole sealing process, the problems of existed in the work of hole sealing hole sealing agent location, grouting quantity control and the different inclination of drilling hole compared with field test, a sealing leakage problems, such as the hole sealing process is improved, new hole sealing process effectively improve the effect of hole sealing.
出处
《煤炭技术》
CAS
北大核心
2016年第5期234-235,共2页
Coal Technology
关键词
瓦斯抽采
钻孔封孔
注浆
gas extraction
drilling hole sealing
grouting
