Seismic liquefaction numerical simulation and dynamic response of levee embankment

To understand the performance of Qingcaosha reservoir under earthquake loading,the seismic liquefaction of levee embankment was studied by the finite element analysis program for liquefaction process(FLIP) code.Residual deformation of different nodes,excess pore water pressure ratio and path of effective stress of different elements were compared.The computational results prove that the acceleration on the ground can be amplified by the levee;that the residual deformation of the soils under 12 meters becomes so little that it can be neglected;that the effective height is largely decreased and that it is very dangerous especially when it is in high or full storage capacity.All these weak points should be reinforced in project constructon.