Study on spatial effect of foundation pit by coupling the groundwater 
flow and soil skeleton deformation

LI Yu-qi; ZHOU Jian; XIE Kang-he

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Study on spatial effect of foundation pit by coupling the groundwater flow and soil skeleton deformation

更新时间：2026-06-25

- Study on spatial effect of foundation pit by coupling the groundwater flow and soil skeleton deformation
- Vol. 27, Issue S2, (2006)
- 作者机构：
  
  1. 同济大学地下建筑与工程系,上海,200092
  2. 浙江大学岩土工程研究所,杭州,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU433
- Online First：16 December 2006，
  
  Published：2006
- 稿件说明：
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LI Yu-qi, ZHOU Jian, XIE Kang-he. Study on spatial effect of foundation pit by coupling the groundwater flow and soil skeleton deformation[J]. 2006, 27(S2).
DOI：

LI Yu-qi, ZHOU Jian, XIE Kang-he. Study on spatial effect of foundation pit by coupling the groundwater flow and soil skeleton deformation[J]. 2006, 27(S2). DOI：

摘要

基于三维比奥固结理论，编制了考虑地下水渗流与土骨架变形耦合效应的有限元程序，分析了基坑变形以及坑内外超静孔压和土水势的空间分布规律，并与二维分析的结果进行了对比。研究表明，由于空间效应的影响，基坑中部截面处的围护结构水平位移和坑后地表沉降较基坑边缘截面处的围护结构水平位移和坑后地表沉降大，而基坑中部截面处的超静孔压和土水势却较小；与三维有限元分析的结果相比，二维分析时围护结构的水平位移和坑后地表沉降都更大。

Abstract

Based on three-dimensional Biot’s consolidation theory

the computer program is developed by FEM to perform the coupled analysis of the groundwater flow and the soil skeleton deformation. The spatial distributions of foundation pit deformation

excess pore water pressure and soil water potential are studied and compared with the corresponding results from two-dimensional analysis. It is demonstrated that the horizontal displacement of the retaining wall and the settlement of the ground surface in the middle section are larger than those in the margin sections due to the spatial effect

whereas excess pore pressure and soil water potential are smaller in the middle section. The results from three-dimensional analysis are compared with those from two-dimensional analysis; and it is shown that the horizontal displacement of the retaining wall and the settlement of the ground surface obtained from two-dimensional analysis are both larger.

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