静力压桩挤土应力场数值模拟  

On numeric simulation of squeezing stress filed of static pressed piles

作　　者：郑绍欢[1] 曾海霞[1] 王莉[1] 

机构地区：[1]莆田学院,福建莆田351100

出　　处：《山西建筑》2012年第9期63-65,共3页Shanxi Architecture

基　　金：福建省大学生创新实验项目;蒲田学院校级大学生创新性实验项目资助

摘　　要：应用Matlab软件PDE工具包中椭圆型方程模拟静力压桩挤土产生的应力场,指出挤土应力沿外径向递减;土与桩界面挤土应力随着桩与土体的模量比的减小而减小,随着土体泊松比的增大而减小。The paper adopts the stress field formed by simulating the squeezing soil of the static pressed piles with the elliptic equation in PDE toolkit in Matlab software, points out the squeezing stress reduces along the direction of the external diameter, and the squeezing stress between the soil and the pile interface reduces along with the modulus ratio between the pile and the soil, and still reduces along with the increasing soil poisson.

关 键 词：静力压桩 挤土应力场 小孔扩张 MATLAB软件 椭圆型方程 

分 类 号：TU473[建筑科学—结构工程]