不同偏压条件下基坑开挖对支护排桩变形特性的影响研究

Influence study on foundation pit excavation on deformation characteristics of supporting pile row under different bias pressure conditions

基于有限元软件Midas GTS/NX,本文通过分析不同偏压条件下,基坑开挖过程中支护排桩的变形规律,查明了偏压作用在基坑开挖过程中,对支护排桩变形程度的影响。研究中考虑偏压荷载大小、偏压荷载距坑边水平距离及偏压荷载宽度,模拟分析不同偏压荷载条件下下基坑开挖过程中支护排桩的水平位移变形规律。研究成果以期为类似偏压深基坑提供一定借鉴或参考。

Based on the finite element software Midas GTS/NX,this paper analyzes the deformation law of supporting pile in the process of foundation pit excavation under different biased pressure conditions,and identifies the influence of biased pressure on the deformation degree of supporting pile in the process of foundation pit excavation.The research considers the size of biased load,the horizontal distance of biased load from the pit side and the width of biased load,and simulates and analyzes the horizontal displacement and deformation law of supporting pile row during excavation of foundation pit under different biased load conditions.The research results are expected to provide certain reference for similar biased deep foundation pit.