Experiments Of Shaking Table And Numerical Simulation For Liquefaction Failure Of Caisson Pier

With rapid economic development, ports have a new opportunity and become a bridge linking the world. In port engineering, damage of ports in earthquakes is very serious to have caused tremendous economic losses to production and lives. As transportation hub, port is very difficult to repair after the damage, so the development of seismic theory has been playing a vital role in Port Engineering.Through 8 groups of large underwater shaking table model tests, find out the seismic response laws on foundations of rubble piles or not. Seismic response has damaged the model. We are able to observe the Pore pressure ratio and the displacement. Use Gravel pile to strengthen the foundations and learn about post-liquefaction effects to provide information for the next numerical analysis.In seismic theory, use elasto-plastic model to analyze damage principle of port buildings through numerical analysis and shaking table experiments.Select caisson quay wall on the construction of ports as the object of study,use elasto-plastic model, FE-FD coupled numerical analysis method to simulate seismic response of large-size caisson quay wall under earthquake.And adopt the under-water shaking table model experiments for verification.Comparing the results of different methods,destruction trend is similar.Conclusion is that elasto-plastic model is valuable in seismic theory and in the actual projects of ports plays a bedding role for promotion.