Bridge pile foundation on large-scale deposit body bears not only the vertical force transmitted from superstructure, but the lateral force transmitted from slope deformation, so the force situation is complex. The method of solving the internal force of piles which is simulated with solid elements is put forward in the paper. Taking Dahuaqiao bridge pile foundation as an example to carry out numerical simulation analysis. The distribution rules of axial force, shear force and bending moment of the pile in different position were analyzed. The results can provide the basis for the design and safety evaluation of bridge pile foundation.
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