郭屯煤矿主井井筒-836m工作面预注浆施工技术

Pre-grouting Construction Technology for-836 m Face at Main Shaft of Guotun Coal Mine

主要介绍了M7、M8含水层工作面探水预注浆施工技术方案、注浆参数以及工艺流程,同时利用止浆垫对清理撒煤硐室两边进行预注浆,以确保主井井筒安全穿过含水层施工。

Pre- grouting Construction Technology, the grouting parameters and process at M7, M8 water- bearing face are introduced, at the same time using the stop pulp spacer on the both sides of coal chamber so as to ensure the main shaft safely go - through the aquifes.