贵州科学2024,Vol.42Issue(1) :72-78.

基于不同结构面组合的岩质高边坡稳定性分析

Stability analysis of high rock slope formed by different structural planes

易庆波
贵州科学2024,Vol.42Issue(1) :72-78.

基于不同结构面组合的岩质高边坡稳定性分析

Stability analysis of high rock slope formed by different structural planes

易庆波1
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作者信息

  • 1. 中国水电顾问集团贵阳勘测设计研究院岩土工程有限公司,贵州 贵阳 550081;中国电建集团贵阳勘测设计研究院有限公司,贵州 贵阳 550081
  • 折叠

摘要

建筑岩质高边坡影响着人们生命财产安全,其变形破坏机制和力学模式也非常复杂.以某岩质顺向高边坡为例,在详细的工程地质调查与勘察基础上,从分析影响边坡稳定性的主要因素着手,通过折减结构面强度参数来考虑暴雨工况.采用极射赤平投影等定性分析方法,结合极限平衡定量分析法,得出边坡的失稳模式主要为三维楔形块体局部失稳模式和沿结构面整体滑动破坏模式.最后进行稳定性的计算分析,为不同结构面组合形成的边坡稳定性评价提供参考.

Abstract

High rock slope affects the safety of people's life and property,and its deformation and failure mecha-nism and mechanical mode are very complicated.Taking a consequent high rock slope as the research object,this paper analyzes the main factors affecting the stability of the slope based on detailed engineering geological investiga-tion,and analyzes the working conditions under heavy rain through the structure surface strength reduction.By u-sing qualitative analysis method of stereographic projection,and quantitative analysis method of limit equilibrium,it is obtained that the failure mode of the slope is mainly three-dimensional wedge block partial buckling and instabil-ity along the structural planes.Finally,the stability is calculated and analyzed,so as to provide reference for the sta-bility evaluation of slopes formed by different combinations of structural planes.

关键词

岩质高边坡/结构面/赤平投影/极限平衡/稳定性分析

Key words

high rock slope/structural plane/stereographic projection/limit equilibrium/stability analysis

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出版年

2024
贵州科学
贵州科学院

贵州科学

影响因子:0.395
ISSN:1003-6563
参考文献量8
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