Numerical calculation of loess collapse by coupling seepage and deformation

LIANG Yan; XIE Yong-li; LI Tong-lu

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Numerical calculation of loess collapse by coupling seepage and deformation

更新时间：2026-06-25

- Numerical calculation of loess collapse by coupling seepage and deformation
- Vol. 27, Issue S2, (2006)
- 作者机构：
  
  1. 长安大学公路学院,西安,710064
  2. 长安大学地测学院，西安 710054) (特殊地区公路工程教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU443
- Online First：16 December 2006，
  
  Published：2006
- 稿件说明：
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LIANG Yan, XIE Yong-li, LI Tong-lu. Numerical calculation of loess collapse by coupling seepage and deformation[J]. 2006, 27(S2).
DOI：

LIANG Yan, XIE Yong-li, LI Tong-lu. Numerical calculation of loess collapse by coupling seepage and deformation[J]. 2006, 27(S2). DOI：

摘要

以甘肃陇西地区自重湿陷性黄土作为研究对象，建立了渗流和变形耦合的黄土湿陷变形模型，然后利用Galerkin有限元法对基本方程进行空间离散，在时间域内用差分方法离散，并用Fortran语言编程计算。结合具体的试验条件计算得知：渗流计算结果与实际较为吻合；计算湿陷变形量比实测的大，并且土体非饱和程度越大，差异越大。因此，建议在建立湿陷变形本构关系时考虑时间因素。

Abstract

Taking collapsible loess as research object

this paper presents a numerical model for the finite element analysis by coupling seepage and deformation in unsaturated loess. By comparing the calculation results with the experimental data

it is found that the calculated collapse deformation is bigger than the test data

and this difference is related to the characteristis of un-saturate. So

time is suggested to be considered in the constitutive model of collapsible loess.

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