Lai Jie

Li Xiudi

Liu yun

Yang Bo

Zheng Yingren

To reveal the response and damage mechanism of a tunnel across through the fracture zone under earthquake, a
shaking table model test and numerical analysis were introduced, where the scale of the numerical simulation and the model
test was 1:1. The tunnel acceleration response and the crack, development process, strain response characteristics and
dynamic stress distribution of lining were investigated. The results show that the tunnel lining will be subjected to large
tension and compressive stress, when its tensile strength is insufficient, tension fracture would generate in the bottom of
the arch or near both sides of the arch foot , so reinforced concrete lining should be adopted in order to improve its ability
to bear the tensile failure; the acceleration response of lining increases with the increase of input seismic acceleration; dynamic
earth pressure response is more intense on both sides of the surrounding rock. This research can serve as a reference
for the seismic design of the tunnel.</jats:p

Shaking Table Model Test and Numerical Modeling for Tunnels Traversing Faultage

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