滇中引水隧洞穿越活动断裂带加固措施现场测试OA

The Yunnan Central Water Diversion Tunnel has a long route and crosses numerous regional faults,posing a serious threat to the safe construction and operation of the tunnel project.In order to study the problem of high external water inflow when crossing active faults in tunnels,this paper takes Xianglushan Tunnel crossing the Longpan-Qiaohou active fault zone as an example.Based on the analysis of the characteristics of the fault zone,the excavation exposure,disposal measures,and reinforcement effects of the downstream main tunnel passing through the F10-2 fault zone of Xianglushan Tunnel No.2 Branch were evaluated and analyzed to ensure the safety of tunnel construction.