The CEL method,which is widely used in the research on spudcan penetration,is a new simulation method.However,there are many questions which have not been answered,especially about the effect of penetration velocity and the mass scaling method.This paper firstly simulates two models with no piles which have different penetration speeds.Then,two models with square piles are also simulated with different penetration speeds.Additionally,the mass scaling method is verified.The simulation results show that the penetration speed has little effect on the soil resistance and more effect on the soil failure mode and shear stress.When the model has a pile,the horizontal displacement is relatively unaffected by the penetration speed,and the Mises stress of the pile increases with the penetration speed.The mass scaling factor also has little effect on the horizontal displacement of the pile.The Mises stress has an irregular relation to the mass scaling factor.Therefore,caution should be carefully taken when the mass scaling method is used.