Dynamic parameter verification of P-Z model and its application of dynamic analysis on rockfill dam

摘要

The P-Z constitutive model, which is a kind of the multi-mechanism plastic model based on generalized plasticity, is mainly introduced. It doesn't have to definitely define yield surface and plastic potential surface. Then the meanings of its dynamic parameters are introduced, and comparisons between computation and observation results of dynamic triaxial test are given. The comparison results reveal the PZ model is effective on simulating dynamic behavior of soil. Finally, the dynamic analysis of rockfill dam with PZ model is carried.