| This article analyzes the pile-soil interaction adjacent to superficial surcharge and the interaction of the surcharge-passive pile-superstructure. The pile and column are modeled plane beam element, soil to be spring element, truss is to be bar element. Based on the compatibility condition of displacement and force, the corresponding programme has been encoded by author. Through two examples analysis, then it analyzed some factors to deformation and inter force of pile, column and truss, such as the grade of surcharge, the rigidity of pile, the distance between surcharge and pile, the constraint condition of pile peak and the rigidity of surface soil.
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