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滑坡稳定性分析及防治设计研究OA

Research on Stability Analysis and Prevention Design of Landslides

中文摘要英文摘要

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.

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.

王亚凌

江苏省水文地质海洋地质勘查院,江苏 淮安 223005

地质学

滑坡稳定性防治反分析法

LandslideStabilityPrevention and controlBack analysis

《江西建材》 2024 (1)

189-191,3

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