高海拔寒区隧道防排水技术与措施研究

Research on Technology and Measure for Waterproof and Drainage of Tunnel in Cold Region with High Altitude

高海拔寒区隧道内冻融、渗水、漏水现象严重,容易使衬砌混凝土产生开裂、挂冰等危害。通过大量调研我国寒区隧道的冻害情况,并分析寒区隧道衬砌渗漏水的诱因,提出了适用于高海拔寒区隧道衬砌防水层施工技术措施和排水施工技术措施,该研究成果可为相关工程提供参考。

In view of the serious phenomenon of freeze-thaw,water seepage and water leakage in high altitude cold area tunnel,it is easy to crack the lining concrete and cause the hazards such as brittle ice hanging.By investigating the freezing damage of tunnel structures in cold regions of China,the causes of water leakage in tunnel lining in cold regions are analyzed.The technical measures of waterproof layer construction and drainage construction for tunnel lining in high altitude cold area are put forward to provide reference for related projects.