I plan to use abaqus to calculate the lateral bearing capacity of large diameter single piles. At present, there are two methods to simulate the single pile. One is to simulate the pile structure with a small thickness solid unit, but the grid is very high. Another method is to replace the thin-walled steel pipe pile with solid pile using the rigidity equivalent method. The advantage of this method is high computational efficiency. My question is whether the soil reaction force of the model obtained from the solid pile is the same as that of the thin-walled steel pipe pile? Especially for the reaction and bending moment at the bottom of the pile?