Based on the model test, ABAQUS, the large-scale nonlinear finite element software was applied to build the numerical simulation model of the reinforced cement mixing wall in soft soil. The model parameters were obtained and the model was optimized with the technique of parameter inversion. Based on equivalent principle, the equivalent model was built to study the Cement's Stiffness-Contribution in reinforced cement mixing wall and its equivalent Stiffness was obtained. Analysis shows that the presence of cement can increase t...