In order to study the creep law of marine clays,a large number of drained triaxial creep tests with undisturbed samples were carried out under different confining pressure and stepwise loading,by using the triaxial rheological apparatus.The two-dimensional finite element program CFEM 2D was developed which incorporate Adachi-Oka model with Biot's consolidation theory.The creep tests were simulated by the program CFEM 2D,and the results revealed that the model can describe the creep behavior of marine clays.The long-term settlement behavior of deep marine clays was analyzed by the program,and the results showed that the settlement rate is bigger in the initial stage of loading.In 100 years,the surface settlement attained 88.5 cm,and the excess pore water pressure nearly dissipated completely.The results error between the numerical analysis and the layer-wise summation method is about 2.5%,which verified the reliability of the finite element program.
