滑坡稳定性分析及防治设计研究
Research on Stability Analysis and Prevention Design of Landslides
王亚凌1
作者信息
- 1. 江苏省水文地质海洋地质勘查院,江苏 淮安 223005
- 折叠
摘要
针对土体强度参数的不确定性,文中提出了一种理论加数值的滑坡稳定性分析方法,结合可靠性法结果和定量法,并采用原位地质试验,综合确定土体强度参数的合理值.为了评估边坡稳定性,分别采用上限法和强度折减法进行极限分析和有限元模拟.研究表明,应力和应变主要集中在边坡的坡趾和顶部,为此提出了采用格构式锚杆挡墙、滑坡桩和裂缝填充等对策,以降低滑坡破坏的风险,基于有限元分析结果,验证了建议的可行性和有效性.
Abstract
In response to the uncertainty of soil strength parameters,this paper proposes a theoretical and numerical landslide stability analysis method and countermeasures.The reliability method results and quantitative method are combined with in-situ geological tests to comprehen-sively determine the reasonable values of soil strength parameters.In order to evaluate slope stability,the upper limit method and strength re-duction method were used for limit analysis and finite element simulation,respectively.Taking the study of a certain landslide as an example,it was shown that stress and strain are mainly concentrated at the toe and top of the slope.Based on the analysis results,strategies such as lat-tice anchor rod retaining walls,landslide piles,and crack filling were proposed to reduce the risk of landslide failure;Finally,the feasibility and effectiveness of the proposed approach were verified based on the results of finite element analysis.
关键词
滑坡/稳定性/防治/反分析法Key words
Landslide/Stability/Prevention and control/Back analysis引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据