Rankine's earth pressure analysis of unsaturated soil under condition of rainfall infiltration

WANG Ding-jian; TONG Long-yun; QIU Yue-feng

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Rankine's earth pressure analysis of unsaturated soil under condition of rainfall infiltration

更新时间：2026-06-25

- Rankine's earth pressure analysis of unsaturated soil under condition of rainfall infiltration
- Vol. 34, Issue 11, (2013)
- 作者机构：
  
  1. 中国地质大学（武汉）工程学院,武汉,430074
  2. 四川省地质矿产勘查开发局成都水文地质工程地质队,成都,610072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU432
- Online First：11 November 2013，
  
  Published：2013
- 稿件说明：
移动端阅览
WANG Ding-jian, TONG Long-yun, QIU Yue-feng. Rankine's earth pressure analysis of unsaturated soil under condition of rainfall infiltration[J]. 2013, 34(11).
DOI：

WANG Ding-jian, TONG Long-yun, QIU Yue-feng. Rankine's earth pressure analysis of unsaturated soil under condition of rainfall infiltration[J]. 2013, 34(11). DOI：

摘要

传统的土压力分析仅考虑了土体饱和强度对土压力产生的贡献，忽略了基质吸力及其变化对土压力的影响。运用非饱和土有效应力原理和饱和土朗肯土压力公式推导了非饱和土朗肯土压力公式，结合Iverson降雨入渗解析解，推导出降雨入渗条件下非饱和土压力公式。该公式将降雨入渗时的非饱和土压力表示为时间和深度的函数，更符合实际情况。研究结果表明：采用该方法计算得到的土压力值相对于传统计算结果偏大，作用点偏高；此外，随着降雨的发生、入渗和停止，主动土压力呈现“减小-增大-减小-稳定”趋势，被动土压力呈现“增大-减小-增大-稳定”趋势，该现象由降雨过程中基质吸力改变所致。由该公式获得的土压力分布及变化规律可用于挡土工程结构的设计。

Abstract

The conventional earth pressure analysis method only considers the shear strength of saturated soil

which ignores the influence of matrix suction as well as its change. Based on the principle of effective stress of unsaturated soil and Rankine's earth pressure formula of saturated soil

the Rankine's earth pressure formula of unsaturated soil is deduced. The earth pressure formula of unsaturated soil under the condition of rainfall is established by the combination of the formula derived above and Iverson’s rainfall infiltration analytical solution. In the formula

earth pressure of unsaturated soil under rainfall infiltration is expressed as a function of time and depth. The study result shows that the earth pressure value calculated by the improved method is relatively larger than the conventional calculation and its action point is higher. With the occurrence

infiltration and stop of rainfall

the value of active earth pressure is at a state of “decreasing

increasing

decreasing and lastly stable”; but the value of passive earth pressure presents a tendency of “increasing

decreasing

increasing and stable”. The phenomenon is due to the change of matrix suction during rainfall. The distribution and change rule of earth pressure calculated by the proposed formula can be applied to design of retaining engineering structure.

关键词

Keywords

references

Views

1703

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Analytic solution to coupled seepage in layered unsaturated soils

Experimental study of unsaturated loess-like silty clay in Sanmenxia area

Principle of generalized effective stress for unsaturated soils

Experimental study of strength characteristics of unsaturated soil of landslide #1 in Xiaolangdi Reservoir

Tsinghua elastoplastic model for unsaturated soils

Related Author

WU Li-zhou

ZHANG Li-min

HUANG Run-qiu

HUANG Zhi-quan

CHEN Yu

SONG Ri-ying

SONG Li-juan

ZHAO Cheng-gang

Related Institution

State Key Laboratory of Geological Hazard Prevention and Geological Environment Protection, Chengdu University of Technology

Department of Civil and Environmental Engineering, HongKong University of Science and Technology, Kowloon

Institute of Resources and Environment, North China Institute of Water Resources and Electric Power

Institute of Geotechnical Engineering, Beijing Jiaotong University

North China Institute of Water Conservancy and Hydroelectric Power

AI问答

⁰