Aseismatic And Shock Absorption Model Test Of Tunnelin Ya'lu Expressway

Earthquake is a natural disaster, the lives and property of its people caused enormous losses. Tunnels and underground structures have been considered to be anti-damping function of the superior buildings, the Osaka-Kobe earthquake in 1995, overthrew the underground structure that the anti-damping ability, and safety findings, Should carry out its anti-shock absorber design. The analysis of anti-shock absorber of structure is classified antetype observation, theory analysis, model test. Model test studying ways of thesis is making it more realistic simulation of the tunnel when the earthquake response and structure of the surrounding rock failure mechanism.This thesis is based on Ya'Lu expressway tunnel.In the conclusion of the model tests, master batch of experimental design in the right conditions to the data obtained by the analysis of its capacity, cracking, deformation capacity, energy capacity, rigidity, destruction mechanism to respond to seismic performance of the tunnel and seismic capacity the problem, to reduce the earthquake disaster and the adoption of reasonable underground structures in the earthquake and damping measures, anti-damping model test of the theoretical value is very important and practical significance.This thesis works as follows:1. Research on similar materials, according to similar theory, finding suitable acquaintance scale, and ultimately determine the similarity between test and similar materials preparation;2. Respectively for portal and body posture whether damping layer and set up cross-fault condition and vibration-model tests, the use of shaking table tests simulate a real tunnel seismic measurements, as well as its content and measuring points;3. The tests of the runnel seismic data analysis shows that seismic performance analysis of the tunnel and the tunnel seismic weak link;4. Based on wether setting up of shock absorption layer and the setting up of cross-fault comparative analysis, The results point out that all kinds of conditions were seismic impact of the tunnel.