Calculation Study Based On The Effects Of Sidewall Friction Of Long Pile Group

With the rapid development of the national economy, the high-rise buildings inlarge numbers, long pile has been widely used to bear the superstructure weight,control, foundation settlement. However, because of the characters to play of the pileside and pile-side soil bearing capacity as well as the pile-soil interaction are extremelycomplex, making the long pile Theory of Computation far behind in practice, andtherefore the calculation of the theoretical study of long pile is extremelyimportant.Long pile body internal force is calculated using the standard method andthe finite element method are two ways, through the comparative analysis of the resultsof the two methods, the draw method for computing long pile.This article first summarizes the overview of the development of long pile, longpile and then to the main tower in the Xiamen-Zhangzhou Bridge on North Bridgesouth main pile foundation based on the project to use existing specification methodand the finite element method software MIDAS body internal force is calculated andanalyzed.When using the finite element calculation of pile internal forces, in order toovercome the pile soil interaction to simulate this problem, this article "soil spring" tosimulate the pile and soil, pile-soil simulation conversion became the "soil springstiffness solvingproblem. In this paper, to solve the "soil spring stiffness, andaccurately simulate the pile-soil contact. This is the innovative part of this article.Pile internal forces of the results obtained by two methods compared and foundthat the specification method to calculate the inadequacies of the long pile bodyinternal force, while the finite element method is more suitable for long pile internalforces.