摘要
为保证安全高效通过永夏矿区标志含水层K_6砂岩,在施工顺和煤矿主井井筒-565^-705m基岩段时,采用工作面大段高预注浆施工方案。注浆结束后,单孔涌水量减少到了1.01m^3/h以下,取得了显著的效果,为井筒掘砌施工创造了良好条件,使井筒得以安全顺利落底。
To ensure the security and efficiency in crossing of the sign K_6 sandstone aquifer of Yongxia mine,large section height pre- grouting scheme is applied in construction of- 565 ^- 705 m bedrock segment in Shunhe mine main shaft,after grouting,the single hole water inflow is below 1. 01m^3/ h, creating favorable conditions for shaft excavation and lining,and ensuring the safe and smooth shaft bottoming.
出处
《煤炭工程》
北大核心
2016年第5期59-61,共3页
Coal Engineering
关键词
基岩段
大段高
工作面预注浆
地面注浆站
bedrock section
large section height
working face pre-grouting
grouting ground station
