Coupling analysis of thermal field and stress field for immersed tunnels under fire load;

Excavation and Equipment of Trench for Immersed Tunnel;

Changhong Immersed Tunnel in Ningbo City, Zhejiang Province;

Taking Luntou-Shengwudao immersed tube tunnel in Guangzhou as an example,the paper analyzes the seismic response of the immersed tube tunnel by dynamic FEM.

Immersed tube tunnels are often analyzed by using the method of beam or plate on elastic foundation which can not precisely simulate the behavior of joints.

In the construction method of immersed tube tunnels,the treatment of joints is always a difficulty.

The earthquake responses of Nanjing Changjiang Submerged Tunnel of highspeed railway are analyzed by using seismic response analysis model of submerged tunnel and the dynamic model of plane finite element.

Based on the mathematical model for analyzing the earthquake response of submerged tunnel,the analytical model for the Nanjing Changjiang Tunnel is proposed.

This paper studied experimentally the maneuverability of a pushedconveying system made up of a segment of the submerged tunnel,four barges and two tugboats.

However, TBM also can be embedded or out of work if complicated geological structure is encountered, and by-pass tunneling is often used for helping TBM restart.