A novel physical modeling technique for slope failure caused by strength reduction: comparisons with DEM simulation

Tao Yang; Yunkang Rao; Bokai LiHuailin ChenZhichao YuZhe ZhangYixian SongHonggang Wu

首页> 外文期刊>Granular matter >A novel physical modeling technique for slope failure caused by strength reduction: comparisons with DEM simulation

【24h】

A novel physical modeling technique for slope failure caused by strength reduction: comparisons with DEM simulation

机译：A novel physical modeling technique for slope failure caused by strength reduction: comparisons with DEM simulation

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Abstract A strength reduction method combined with numerical techniques has been frequently used to analyze slope failure. However, to date, there is no valid physical modeling technique to verify this method. This study developed a novel physical modeling technique for reproducing slope failure caused by soil strength reduction. This technique applied a new age-softening material obtained by placing a matrix material in a softening solution. The strength of the matrix samples exposed to the softening solution for different lengths of time was measured by triaxial and uniaxial compression tests. A laboratory-scale slope was then constructed from the age-softening material, and tests were performed to observe slope failure caused by strength reduction. Finally, the results of the slope test were compared with those from limit equilibrium methods (LEMs) and a discrete element method (DEM) simulation. The results of the triaxial and uniaxial tests indicate that the age-softening material showed gradually decreasing strength. The slope failure in the laboratory test showed rotational sliding with a distinct sliding surface running through the entire slope. Values of the critical cohesion that causes slope failure differed slightly between the new technique and LEMs. The shape and location of the experimental sliding surfaces were generally consistent with those in LEMs or DEM simulations. Moreover, the failure mode in the slope test was generally consistent with that in the DEM simulation. These comparisons indicate that the new technique may be an effective means to reproduce slope failure caused by strength reduction.Graphical abstract

著录项

来源
《Granular matter》 |2023年第2期|26.1-26.17|共17页
作者
Tao Yang; Yunkang Rao; Bokai LiHuailin ChenZhichao YuZhe ZhangYixian SongHonggang Wu;
展开▼
作者单位

Southwest Jiaotong University;

Northwest Research Institute Co., Ltd. of C.R.E.C;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类
关键词
Slope failure; Physical modeling technique; Strength reduction method; Discrete element method; Limit equilibrium method;

A novel physical modeling technique for slope failure caused by strength reduction: comparisons with DEM simulation

摘要

著录项

相关主题

期刊订阅