Seismic passive earth pressure against the retaining wall of structural loess based on plane strain unified strength formula

SHAO Sheng-jun; CHEN Fei; DENG Guo-hua

doi:10.16285/j.rsm.2017.2276

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Seismic passive earth pressure against the retaining wall of structural loess based on plane strain unified strength formula

更新时间：2026-06-25

- Seismic passive earth pressure against the retaining wall of structural loess based on plane strain unified strength formula
- Vol. 40, Issue 4, Pages: 1255-1262(2019)
- 作者机构：
  
  1. 西安理工大学岩土工程研究所
  2. 西安理工大学陕西省黄土力学与工程重点实验室
  3. 西安黄土地下工程技术咨询有限公司
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2017.2276
  CLC： TU444
- Published：2019
- 稿件说明：
移动端阅览
[1]邵生俊,陈菲,邓国华.基于平面应变统一强度公式的结构性黄土填料挡墙地震被动土压力研究[J].岩土力学,2019,40(04):1255-1262+1290.

SHAO Sheng-jun, CHEN Fei, DENG Guo-hua. Seismic passive earth pressure against the retaining wall of structural loess based on plane strain unified strength formula[J]. 2019, 40(4): 1255-1262.
[1]邵生俊,陈菲,邓国华.基于平面应变统一强度公式的结构性黄土填料挡墙地震被动土压力研究[J].岩土力学,2019,40(04):1255-1262+1290. DOI： 10.16285/j.rsm.2017.2276.

SHAO Sheng-jun, CHEN Fei, DENG Guo-hua. Seismic passive earth pressure against the retaining wall of structural loess based on plane strain unified strength formula[J]. 2019, 40(4): 1255-1262. DOI： 10.16285/j.rsm.2017.2276.

摘要

基于结构性黄土不同含水率方形试样的三轴剪切试验

研究了非饱和黄土的残余强度效应和构度与强度参数的关系

引入两种效应修正了平面应变统一强度公式

分析了地震荷载作用下墙后土应力摩尔圆的变化规律

采用水平层分析法

建立了综合考虑中主应力、土结构性、残余强度的黄土填料被动动土压力公式。研究表明:平面应变统一强度公式计算得到的峰值或残余黏聚力和摩擦角随统一强度参数b值增大而增大

结构性对黏聚力的增幅较大

而对摩擦角影响则不明显;结构性黄土的地震被动土压力系数随b值、构度指标的增大而增大

而随水平地震系数的增大而减小;结构性较大时残余强度计算的地震被动土压力系数较峰值强度大

结构性较小时

两者计算结果接近。

Abstract

Based on triaxial shear tests of structural cube loess samples with different water contents

residual strength effect and relationships between structural indexes and strength parameters are studied

based on which the uniform strength formula for plane strain is corrected. Variations of Mohr circle of soil stress behind the wall under the seismic conditions are analysed. By using the method of level layer element

calculating seismic passive earth pressure of loess filler considering intermediate principal stress

structure and residual strength effects is established. The results indicate that cohesions and friction angles calculated by unified strength theory increase with unified strength parameter b. The structure of loess has a huge influence on cohesion while the effect of friction angles is not obvious. The total seismic passive earth pressure coefficient increases with the increase of b value and structural index

while it decreases with the increase of horizontal seismic coefficient. The residual strength makes a more contribution to seismic passive earth pressure coefficient for large structure than for small structure.

关键词

Keywords

references

Views

217

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Discussion on stress-strain relation of intact loess considering soil structure

Test study of loess structure based on static strength conditions

Study of immersion strength and residual strength of lime-loess

Structural index of loess and its testing method

A structural constitutive model for loess under the wetting condition

Related Author

TIAN Kan-liang

WANG Pei

ZHANG Hui-li

TIAN Kan-liang

MA Jun

MI Hai-zhen

WANG Hao

GAO Chun

Related Institution

Institute of Soil & Water Conservation, Northwest A& F University, Yangling

Institute of Soil & Water Conservation, Chinese Academy of Sciences & Ministry of Water Resources, Yangling

College of Water Conservancy and Architectural Engineering, Northwest A&F University, Yangling

Institute of Soil and Water Conservation, Northwest A & F University, Yangling

Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling

AI问答

⁰