Bridges and tunnels are good solutions to transportation problems in large cities separated by large rivers. Great success of bridge construction has been achieved in China, but large-sized immersed tube tunnel construction is still in its infancy. The design and safety of the immersed tunnel structure is an important indicator of immersed tube tunnel construction. In order to solve the safety problem of pipe joint deformation during pouring, pipe joints of immersed tube tunnels is modeled by numerical simulation method based on the research of immersed tube tunnels of Shenzhen-Zhongshan Link. The structural load characteristics of pipes during and after pouring were analyzed. Stress deformation characteristics curves of bottom plates of different pipes can be obtained through adjusting passive support when pouring. The analysis of stress deformation characteristics of steel shell offers theoretical foundation for the optimal design of all steel-concrete-steel immersed tube tunnels.
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