| 基于变形分析的路堑边坡稳定性研究 |
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| 引用本文： | 梁玺,刘博峰,吴银亮.基于变形分析的路堑边坡稳定性研究[J].路基工程,2021,0(4):129-132. |
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| 作者姓名： | 梁玺 刘博峰 吴银亮 |
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| 作者单位： | 1.中交一公局华南工程有限公司，广州 511311 |
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| 摘 要： | 依托某路堑边坡工程，采用有限元变形分析方法分析现状边坡变形破坏特征，提出合理可行的加固措施，并分析了加固边坡的稳定性。结果表明:该边坡主要破坏模式是由坡脚开挖、降雨入渗导致潜在滑体强度下降，从而引发表层滑动，原设计边坡的3个工况均不满足工程稳定性要求；边坡采用减缓坡比及坡面系统锚杆加固措施，并在边界外设置截排水沟后，减小了降雨及地下水对边坡岩土体强度的软化作用。
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| 关 键 词： | 路堑边坡 稳定性 降雨 变形破坏 有限元 强度折减法 |
| 收稿时间： | 2020-11-05 |
Study on Stability of Cutting Slope Based on Deformation Analysis |
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| Abstract: | Based on the cutting slope project, the deformation and failure characteristics of the slope has been analyzed by using the finite element deformation analysis method, and reasonable and feasible reinforcement measures have been put forward to analyze the stability of the reinforced slope. The results show that the main failure mode of the slope is the potential sliding body strength decline caused by slope toe excavation, rainfall infiltration resulting in surface sliding. The original design of the slope under three working conditions do not meet the requirements of engineering stability. Slope reinforcement measures such as slope ratio reduction, anchor reinforcement of slope surface system, and after adopting drainage ditches outside the boundary, the softening effect of rainfall and groundwater on the strength of rock and soil mass of slope has been reduced. |
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