摘要
为研究穿越断层密集带隧道的有效支护策略,以山西西北矿区某隧道为试验场地,研究了一种改进的支护方法。提出了采用长管预注浆法与新型注浆锚索相结合的改进支护方法。在试验隧道中实施了改进后的支护策略。监测结果表明,改进后的复合支护方法避免了严重的变形,对断层密集带隧道支护是可行的。
In order to study the effective support strategy of the tunnel through fault dense zone,an improved support method was studied with a tunnel in northwest mining area of Shanxi Province as the test site.An improved support method combining long pipe pre-grouting method with new grouting anchor cable is proposed.The improved support strategy is implemented in the test tunnel.The monitoring results show that the improved composite support method avoids serious deformation and is feasible for tunnel support in fault concentrated zone.
作者
王晓波
Wang Xiaobo(Datong Coal Mine Group Shuozhou Coal Co.,Ltd.,Shuozhou Shanxi 038300)
出处
《山西冶金》
CAS
2020年第6期59-61,74,共4页
Shanxi Metallurgy
关键词
断层密集区
预灌浆
隧道稳定性提高
支护系统
fault concentrated area
pre-grouting
improvement of tunnel stability
support system
