According to the simulation of centrifuge model test of spudcan penetration in various soil profiles

several influencing factors of the penetration resistance are discussed using coupled Eulerian-Lagrangian (CEL) finite element method. Five typical seabed profiles commonly encountered in the field are considered: clay

sand

clay overlying sand

sand overlying clay

and layered soils. It is shown that different ranges of Eulerian domain barely affect the calculation results. To ensure the accuracy of the numerical results of CEL

fine mesh is defined near the spudcan and coarse mesh far away. For various soil profiles

the study confirms that decreasing the size of fine mesh or increasing the range of fine mesh can ease the vibration of the penetration resistance curves. By comparison

the size of fine mesh is proposed to be set as 0.05 times the diameter of the spudcan

meanwhile

the range of fine mesh is proposed to be set as 2 times the diameter of spudcan for various soil profiles. When the displacement control is adopted

the penetration rate has a little effect on the profile of clay

while a great effect on the profile of sand overlying clay. By comparison

a penetration rate of 0.2 m/s is selected in FEM when investigating the calculated penetration resistance in various soil profiles.