沉管隧道在地震与静荷载共同作用下横向受力分析

Transverse Internal Force Analysis of Immersed Tube Tunnel Subjected to Seismic and Dead Loads

以南京长江越江隧道沉管段为例,采用二维平面应变有限单元法分别计算沉管隧道在地震与静荷载(土压力和静水压力)作用下所产生的内力和变形.并进行叠加以得到隧道衬砌的总内力.计算结果可供沉管隧道设计参考.

By taking the submerged section of Nanjing Yangtze River crossing tunnel as an example, the internal forces and deformation of immersed tube tunnel subjected to seismic and dead loads are calculated respectively by using the plane strain finite element method. On this basis, the total internal forces of the lining are obtained by using superposition method. The calculation results can be referred to the design of immersed tube tunnels.