Abstract
The analytical proposal was investigated through a series of model tests on the bending behavior in the longitudinal direction of shield tunnels with secondary linings. The analytical model is composed of beams and springs which simulate the primary and secondary linings, joints and the interaction between the linings respectively. In the experimental study, firstly, concentrated load was applied to the test models to confirm effectiveness of the analytical model. Secondly, the interaction between tunnels and the ground was investigated through the tests in the model ground.
