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首页> 外文会议>International Conference on Engineering Simulation and Intelligent Control >Analysis on the Impact of Expansive Soil Slope Stability by Rainfall Infiltration
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Analysis on the Impact of Expansive Soil Slope Stability by Rainfall Infiltration

机译：降雨入渗对膨胀土边坡稳定性的影响分析

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摘要

Expansive soil soften by water, leading to reduce soil strength, rainfall infiltration impact on the stability of expansive soil slope. In this paper, based on soil saturated - unsaturated seepage theory, by analysis on rainfall infiltration model used finite element analysis software, the model of expansive soil slope saturated - unsaturated rainfall infiltration was established to simulate groundwater rate and pressure head variation during rainfall the influence of slope seepage field and stability by rainfall infiltration was analyzed. Conclusion is that expansive soil slope under rainfall infiltration affects only occurs in shallow areas, low permeability affects slope effect of rainwater infiltration, fissured infiltration slope is slightly faster, short-term rainfall does not lead to a large area of the slope slumping damage, slope slip surface only in the surface layer, the performance of shallow slip. The theoretical basis and data reference are provided for expansion soil slope construction and protection.
机译：膨胀土被水软化，导致土强度降低，降雨入渗影响膨胀土边坡的稳定性。本文基于土壤饱和-非饱和渗流理论，通过有限元分析软件对降雨入渗模型进行分析，建立了膨胀土边坡饱和-非饱和降雨入渗模型，模拟了降雨过程中地下水位和压头变化的影响。分析了降雨入渗对边坡渗流场和稳定性的影响。结论是降雨入渗作用下膨胀土坡仅发生在浅水区，低渗透性影响雨水入渗的边坡效应，裂隙入渗坡度略快，短期降雨并不会导致大面积的边坡塌陷破坏，滑移表面仅在表层，滑移性能较浅。为膨胀土边坡的建设与防护提供理论依据和数据参考。

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