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通过FLAC3D建立边坡数值模型,对软弱土质的边坡稳定性与破坏性进行分析,当边坡发生滑坡时,滑裂面左侧土体从坡脚处开始将产生“无限大”位移,滑裂面右侧土体保持稳定;渗透力作用在边坡土体,改变了土体的有效应力,土体受到水的作用,减小了土体的强度,使得边坡土体提前进入流塑状态,边坡土体更容易发生剪切破坏;渗流场对边坡表层和内部均有很大影响。
The FLAC3D numerical model is established to analyze the stability and destructiveness of the weak soil slope. When the landslide happens, the soil on the left side of the slip surface will have “infinite ” displacement , The soil on the right side of the sliding surface remains stable. The seepage force acts on the slope soil and changes the effective stress of the soil. The soil is affected by water and reduces the strength of the soil so that the slope soil enters ahead of time In the condition of plastic flow, the slope soil is more prone to shear failure. The seepage field has a great influence on the surface and interior of the slope.