Validation on Prediction Method of Seismic Residual Horizontal Deformation of Caisson Quay Wall in Liquefied Foundation by 1g-Shaking Table Test

A multi-shear mechanism plasticity model is defined in strain space to simulate pore pressure generation and development in sand under cyclic loading and undrained conditions in the paper. The seismic horizontal deformation of typical caisson quay are analyzed in detail by the plasticity model under different engineering situations. An index of liquefaction extent is applied to describe the pattern of residual horizontal deformation of quay top under different engineering situations. Some prediction equations are derived from the F-E analysis results between residual horizontal deformation and extent of liquefaction in the relative safe soil site. Then, the reasonableness and the reliability of the derived prediction equations are validated by a 1g shaking table test results.The comparison results show when the unit weight of quay is relatively lower, the predicted value is better by the application of high liquefaction extent and even regressive equation, and when the unit weight of quay is relatively higher, the predicted value is better by the application of high liquefaction extent and broad band regressive equation of lower curve.