Bench-shape slope stability analysis based on strain softening model

DENG Qin; TANG Hua; WANG Dong-ying; QIN Yu-qiao; WU Zhen-jun

doi:10.16285/j.rsm.2017.0295

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Bench-shape slope stability analysis based on strain softening model

更新时间：2026-06-25

- Bench-shape slope stability analysis based on strain softening model
- Vol. 39, Issue 11, Pages: 4109-4116(2018)
- 作者机构：
  
  1. 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
  2. 中国科学院大学,北京,100049
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2017.0295
  CLC： TU457
- Online First：15 November 2018，
  
  Published：2018
- 稿件说明：
移动端阅览
DENG Qin, TANG Hua, WANG Dong-ying, et al. Bench-shape slope stability analysis based on strain softening model[J]. 2018, 39(11): 4109-4116.
DOI：

DENG Qin, TANG Hua, WANG Dong-ying, et al. Bench-shape slope stability analysis based on strain softening model[J]. 2018, 39(11): 4109-4116. DOI： 10.16285/j.rsm.2017.0295.

摘要

多阶边坡除了最危险滑面需要关注，每级台阶的潜在滑面及其他不满足规范要求的滑面亦需要得到重视。以双台阶边坡和复杂多台阶边坡为例，基于应变软化理论，利用FLAC3D软件分析边坡的剪应变发展规律，根据剪应变的集中带获取边坡的多个潜在滑面。分析滑面的剪入、剪出和滑面中部点的强度参数变化规律，并结合矢量和法分析滑面在应变软化过程中安全系数的演化规律。研究结果表明：采用该方法可获取边坡的最危险滑面及次级滑动面；随着软化的发展，滑面上点的强度参数从峰值强度逐渐降低至残余强度，然而演化的速度不同；随着应变软化过程的发展，所有滑面的安全系数均逐渐降低，最后趋于一个定值。

Abstract

In addition to the critical slip surface

the potential slip surface of each step and other slip surfaces which do not meet the specification requirements of bench-shape slope also need to be considered. Based on strain softening theory

the development of shear strain in bench-shape slope is simulated by FLAC3D

and the multi-slip surfaces have been obtained. Meanwhile

the strength parameters and evolution of safety factor of slip surface in strain softening process have been analyzed by using vector sum method. Examples of double-step slope and complex multi-step slope show that: the critical and secondary slip surfaces can be obtained; the strength parameters in the slip surfaces gradually change from peak strength to residual strength as the strain softening progresses. However

the speed is different. With the development of strain softening process

the safety factor of all slip surfaces reduces gradually

and finally tends to a constant value.

关键词

Keywords

references

Views

469

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on analytical method of multi-slip surfaces of landslide based on softening characteristics of geomaterial

Vector sum method for slope stability analysis based on discrete elements

Calculation of downslide thrust of slope based on vector analysis method

Progressive fracture evolution and mechanical response of cavity-containing sandstone under low-frequency disturbance

Elasto-viscoplastic bounding surface model for unsaturated time-dependent soils incorporating non-stationary flow rule

Related Author

YANG Chao

LEI Man

YIN Xiao-tao

DANG Fa-ning

XUE Hai-bin

GE Xiu-run

WANG Shui-lin

GUO Ming-wei

Related Institution

Institute of Geotechnical Engineering, Xi'an University of Technology

Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

Scegc Mechanized Construction Group Company Ltd

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

State Key Laboratory of Geomechanics and Geotechanical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

AI问答

⁰