For rockfill dam

its deformation is related to dam safety and dam operation state. Therefore

reasonable model and effective numerical calculation and analysis are important for the design and construction of rockfill dam. A combination with the measured data of rockfill dam

using the generalized plastic model and Duncan Chang EB model of dam simulation

comparative analysis of generalized plasticity model and Duncan Chang EB model of dam deformation and deformation of the measured differences. Comparative study shows that the generalized plastic model is more reasonable than Duncan Chang EB model.