Along with the wider application of shield in tunnel construction

the seismic behavior of shield tunnel draws increasing attention from researchers.In this paper

The D-P constitutive model was employed to simulate the model soil

and beam-spring was used to simulate the shield tunnel.A two-dimensional finite element model

which considered the property of infinite half space and could effectively simulate the dynamic soil-structure interaction

is established.The response of acceleration

deformation and internal force is studied under the 0.1g Tianjin wave and the site artificial wave.The calculated results show that the acceleration response at bottom and top is greater than that at left and right of the tunnel.Absolute displacement response at tunnel bottom is the maximum.The inner force increases sharply when the seismic loads were exerted. The computational result indicates that the seismic performance of the shield tunnel can satisfy the request of earthquake resistance.