五指山隧道渗漏水连通试验分析

五指山隧道在衬砌完成后,多处发生渗水现象。根据实地调查,隧道内最主要的出水点主要集中在隧道的两端。根据隧道内出水严重程度、地表示踪剂投放条件,分2个阶段进行五指山隧道渗漏水连通试验。试验研究认为,隧道穿越了断层、构造裂隙带和岩溶较为发育地区,地下水循环条件较好,以至于隧道内渗(涌)水与地表水之间,以及隧道衬砌背后与破碎围岩之间的地下水连通,造成隧道内多处发生渗(涌)水的现象。

Research on the Leaking Water of Wuzhishan Tunnel by Connecting Experiments

After the lining of Wuzhishan tunnel was completed,leakages occurred at many points.According to the survey,most leakages were concentrated at both sides of the tunnel.Considering the leakage degree,condition of throwing tracing materials on the surface and the urgency of leakage treatment,the connecting experiments for leaking water in Wuzhishan tunnel were performed in two stages.The results showed that tunnel crosses the fault,structure fracture zone and karsr well-development zone.The cycle condition of...