Discussion on ultimate depth of tension cracks of loess slope under infiltration effect

KANG Xiao-sen; LIAO Hong-jian; LEN Xian-lun; HAO Dong-rui

doi:10.16285/j.rsm.2017.S2.027

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Discussion on ultimate depth of tension cracks of loess slope under infiltration effect

更新时间：2026-06-25

- Discussion on ultimate depth of tension cracks of loess slope under infiltration effect
- Vol. 38, Issue S2, Pages: 197-202(2017)
- 作者机构：
  
  1. 西安交通大学机械结构强度与振动国家重点实验室,陕西,西安,710049
  2. 西安交通大学土木工程系,陕西,西安,710049
  3. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北,武汉,430071
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2017.S2.027
  CLC： TU444
- Online First：05 June 2018，
  
  Published：2017
- 稿件说明：
移动端阅览
KANG Xiao-sen, LIAO Hong-jian, LEN Xian-lun, et al. Discussion on ultimate depth of tension cracks of loess slope under infiltration effect[J]. 2017, 38(S2): 197-202.
DOI：

KANG Xiao-sen, LIAO Hong-jian, LEN Xian-lun, et al. Discussion on ultimate depth of tension cracks of loess slope under infiltration effect[J]. 2017, 38(S2): 197-202. DOI： 10.16285/j.rsm.2017.S2.027.

摘要

张拉裂缝深度影响边坡稳定性，是黄土边坡稳定性分析乃至黄土滑坡研究中一个关键问题。以往关于裂缝深度的研究大多是建立在半无限空间假设下，与黄土边坡坡顶张拉裂缝尖端微元体的实际应变状态不符。基于非饱和土力学和最大伸长线应变理论认为，张拉裂缝尖端土体微元体水平应变达到极限拉应变，推导出入渗影响下黄土边坡坡顶张拉裂缝极限深度控制方程。采用压力膜仪试验确定黄土土–水特征参数，分析了张拉裂缝影响因素及产生机制。将计算结果与野外实测值进行了初步对比分析，表明该裂缝深度控制方程计算结果更接近实测值。

Abstract

Tensile cracks influence the stability of loess slopes

which has become a key problem in the stability analysis of slopes and even the study of loess landslides. The previous studies based on the elastic semi-infinite spatial theory aren't in accordance with the real strain state of soil unit near the tip of cracks. Based on the soil mechanics for unsaturated soils and the maximum tensile strain strength theory

a new equation of limit depth of cracks is established. In the equation

the soil-water characteristic curve variables are obtained via pressure plate extractor tests. Mechanism of the tension cracks and influence of the variables on tension cracks is also analyzed. The comparison between results of the equation and actual values show that are much closer each other.

关键词

Keywords

references

Views

287

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Numerical simulation of infiltration in unsaturated soil

Derivation and validation of the motion equation for seepage in unsaturated soils

SPH numerical solutions of thermo-hydro coupling for bentonite with varying physical parameters

Study of infiltration process and its influential factors under variable rainfall intensity

Series solution to one-dimensional consolidation in unsaturated soils based on the homology analysis method

Related Author

ZHANG Hua

CHEN Shan-xiong

CHEN Shou-yi

SHAO Long-tan

SUN Yan-pu

DONG Hao

XU Tao

BAI Bing

Related Institution

Key laboratory of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

Department of Engineering Mechanics, Dalian University of Technology

State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology

School of Civil Engineering, Beijing Jiaotong University

Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University

AI问答

⁰