Numerical Simulation for Deformation of Liquefiable Soils

According to disaster surveys in recent years, soil liquefaction frequently causes severe damage to building structures. To reduce disaster loss, numerical simulation is a useful tool for timely prediction of soil deformation. In this chapter, we mainly introduce the finite element-finite difference method and summarize two types of constitutive models for liquefiable soils, namely, the nonlinear constitutive and cycle elastoplastic constitutive models. The nonlinear constitutive model was introduced to successfully simulate the constitutive behavior of soils in Shanghai (Huang et al. 2009b). Based on a cycle elastoplastic constitutive model (Oka et al. 1999), we have simulated many problems related to the deformation of liquefiable soils (Ye et al. 2004; Huang et al. 2008a, b, 2009a, b).