不同工法条件下的水下隧道防水设计技术研究

Research on the Waterproof Design for Underwater Tunnel Under Different Construction Methods

基于我国已修建的厦门翔安海底隧道、上海长江隧道、杭州庆春路越江隧道等典型水下隧道工程案例,对不同工法条件下的水下隧道防水设计进行了研究分析。从注浆防水、混凝土管片自防水、接缝防水、二次衬砌防水等方面对盾构法水下隧道的防水设计体系进行了全面系统的论述,对比分析了钻爆法水下隧道的分区防水、半包防水及可维护式防排水等多种防水形式设计的特点、要点。最后,结合不同工法条件下的水下隧道防水设计案例,对其防水设计要点及其防水效果进行了对比分析。

Based on the research of typical underwater tunnel engineering cases,such as Xiamen Xiang'an subsea tunnel,Shanghai Yangtze River Tunnel,and Hangzhou Qingchun Road crossing the river tunnel,waterproof design for underwater tunnel under different construction methods has been done. Waterproof system of underwater tunnel was discussed systematically comprehensive,from the aspects of grouting waterproof,concrete seal self waterproof,seal waterproof,and so on.Features and points of partial waterproofing method,half pack waterproof,and maintainable waterproofing were comparatively analyzed for underwater tunnel under drilling and blasting method. Based on the waterproof design cases for underwater tunnel,waterproof design features and effects were compared.