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Numerical analysis on the evolutionary features of deformation and failure modes of slopes

机译：斜坡变形和失效模式的演化特征的数值分析

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The failure of slope is a gradual accumulation process. Under the effect of many interior and exterior factors, some parts in the slope reach yield with the increase of stress; sliding surface forms gradually till complete transfixion; with the plastic strain continuous increases, overall failure happens on the slope. Traditional analysis method cannot display the mechanic conditions and the whole process of deformation, transfixion of sliding surfaces and failure. Meanwhile, FEM strength reduction can quantitatively show the deformation features and the process of occurrence and development of sliding surface. Based on the previous researches, the paper classifies slopes according to the features of rock and soil and the slope structure. Through analyzing the graphs of deformation and the nephograms of plastic strain under different reduction factors or safety factors, the researchers can directly find the deformation tendency of slopes and the whole process of the extension, transfixion and failure of sliding surface with the reduction of safety factor. So, the failure mechanism of slope can be found intuitively, which can provide effective basis for the prevention and governance of slopes.
机译：斜坡的失败是逐渐累积过程。在许多内部和外部因素的效果下，斜坡中的一些部位随着应力的增加而达到产量;滑动表面逐渐形成直到完全的晶状体;随着塑料应变的连续增加，斜坡上的总体故障发生。传统的分析方法不能显示机械条件和整个变形的过程，滑动表面的转态和故障。同时，有限元强度减小可以定量地显示变形特征和滑动表面的发生和发展过程。根据以前的研究，本文根据岩石和土壤的特征和斜坡结构进行斜坡。通过分析不同减少因素或安全因素的变形和塑性应变的吞噬图，研究人员可以直接找到斜坡的变形趋势和延伸，突变和滑动表面的整个过程，通过减少安全系数。因此，可以直观地发现坡度的故障机制，这可以为防止和治理斜坡提供有效的基础。

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