Theoretical Study for the Influence of Section Form on Compressive Failure State of Concrete Expanding-Plate Piles

Abstract

Due to the difference of construction equipment for concrete expanding-plate pile (CEP), there are certain differences for the section forms of CEP expanding plate, and also the actual section form and current theoretical model shall differ. On the basis of FEM analysis, this paper studies the failure state of soil around pile under vertical pressure with the section form of expanding plate changing, and further determines its effect on CEP compressive bearing capacity, so as to verify the reliability of current research and provide theoretical basis for CEP design.