海底沉管隧道关键技术设计与分析

Design and Analysis of Key Technology about Chunnel Immersed Tunnel

研究目的:沉管法是水下隧道修建的一种先进方法,其设计需考虑结构、施工工艺、水文地质条件、运营等众多因素的影响。结合沈家门港海底沉管隧道工程设计,对其几个关键技术进行了分析研究,以指导设计。研究结论:通过对隧道水文条件、沉管结构及管段沉放水流阻力、GINA橡胶止水带选型计算、工程耐久性设计措施等方面的分析研究,解决了该隧道的几个关键技术问题,并指导完成了隧道设计,取得了较好的效果,为海底沉管隧道设计积累参考经验。

Research purposes： Immersed Tunnel Technology is an advanced subaqueous tunneling method, which need take structure, construction scheme, hydrogeological Shenjiamengang immersed tunnel project, several of parameter, working factors into account. With the construction of key technologies of design method were analyzed and researched to guide the design. Research conclusions： The research, such as tunnel hydrological conditions, immersed structure, the water resistance of immersed sinking, calculation of GINA joint selection, project design measures durability, etc. , solved the several key tunnel technical problems. With the help of research, the design of Shenjiamengang immersed tunnel was sucessfully completed. The reference experience of chunnel immersed tunnel design was accumulated.