Regarding rock-filled embankment as viscoelastic material

a hyperbola-shaped constitutive model with three parameters for high rock-filled embankment is proposed to describe the features of creeping of this kind of material. And the back-analysis has been brought forward with introducing genetic algorithm and finite element method to determine the model’s parameters. And combining the in-situ settlements of a practical project

a method proposed is applied to back analysis of parameters which is used to predict the settlements after construction in similar sections. It is indicated that by analysis of the example of practical engineering that the computational means of settlement after construction are exact and the parameters can be easily obtained

so as to provide reference for determining reasonable time of paving road surface and establishing controllable conditions of construction.