路基工程Issue(2)：172-177,6.DOI:10.13379/j.issn.1003-8825.202407061
基于突变理论的某公路不良地质边坡稳定性研究
Study on the Stability of a Highway Slope under Bad Geology Based on Catastrophe Theory
李琛 1刘树林 1李小兵 1李永勤1
作者信息
- 1. 中交第一公路勘察设计研究院有限公司,西安 710075||西安中交公路岩土工程有限责任公司,西安 710075
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摘要
Abstract
The unfavorable geological body of a slope was detected via the geological radar,and the stability analysis was carried out.The stress,displacement,plastic zone and dissipation energy in the excavation process were studied,and the dissipation energy-cusp catastrophe formula was established based on the cusp catastrophe theory.The result shows that,the compressive stress of the slope surface is significantly reduced after the excavation.The displacement of the slope in the z direction is 10.1 cm,and that in x direction is 12.5 cm.Combined with the plastic zone,it can be seen that the slope forms a potential slip surface.Through cusp catastrophe theory analysis,it can be known that the slope is unstable until the sixth step Δ＜0.After the slope is supported by anchor cable frame beam,the plastic zone and displacement are significantly reduced.Combined with catastrophe theory Δ＞0,the slope is considered to be in a stable state.关键词
强-中风化泥岩/边坡支护/位移监测/突变/锚索框架梁/稳定性Key words
strong-medium weathered mudstone/slope support/displacement monitoring/catastrophe/anchor frame beam/stability分类
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李琛,刘树林,李小兵,李永勤..基于突变理论的某公路不良地质边坡稳定性研究[J].路基工程,2025,(2):172-177,6.
