Analysis on deformation characteristic of squeezed branch and plate pile under lateral load with finite element method

Abstract：At present, the test and theoretical research about pile group under lateral load are rare, especially for the new type of pile, the squeezed branch and plate pile, which has no resports about it.To solve this problem and considering the no-linear contact between pile and soil, elastic-plastic of soil, initial stress condition of mode, the deformation characteristic of squeezed and plate pile, and soil around pile under lateral load are analyzed by using finite element and infinite element couple method.The influence law of factors such as plate position, pile spacing and pile number to pile displacement, soil displacement and relative displacement between pile and soil in pile group with two piles, three piles and four piles are detail studied.

Keyword：squeezed branch and plate pile;lateral load;pile group;deformation;finite element method;