The behavior of cast-in-place concrete large diameter pipe pile（PCC pile） under lateral load and pile-soil interaction were analyzed according to the pile displacement and moment of a full-scale model test.The behavior of PCC pile under lateral load was also modeled numerically with ABAQUS

which was confirmed very well with the test result

and its main influences were also discussed.The result indicates: the behavior of the PCC pile under lateral load is influenced by the Young’s modulus and thickness of the superficial soil obviously

and the pile displacement can be controlled by improving the superficial soil to satisfy the requirement of engineering designs;the behavior of PCC pile under lateral load is also influenced by the parameters of soil strength

especially when the internal friction angle and the cohesive strength are both relatively small.