Based on practical measuring data in engineering

the hyperbola-shaped constitutive model which has three parameters and reflects the law of creep deformation after construction for high rockfill embankment is firstly proposed by combing the mechanism of settlement with the features of engineering;and the back-analysis way that the model’s parameters are determined has been brought forward with introduction of genetic algorithm and finite element method.Afterwards

the computational means of the settlement after construction for high rockfill embankment is deeply discussed using finite element method for creep;and the relevant analytic software is developed.Finally

the application for the constitutive model proposed in this paper and the computational method of the settlement for high rockfill embankment is deeply probed by combining with the practices of engineering.It is indicated by analysis of the example of practical engineering that both the constitutive model for creep deformation and the computational means of settlement after construction are simple and reach the request of engineering practice

and a new computational method for the after-construction settlement of high rockfill embankment which is elementarily established.