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基于极限分析理论和能量安全系数的定义,提出了一种评估土坡稳定分析的方法,并通过例子阐述了该方法的具体应用。分析表明:对二维的土坡稳定分析,能量安全系数具有明确的物理意义,且容易将其应用和拓展到土坡的三维稳定分析中。结果表明:文中建议的两种土坡三维破坏模式更适用于坡顶局部压力下的三维土坡稳定分析研究。
Based on the theory of limit analysis and the definition of energy safety factor, a method to evaluate soil slope stability is proposed. The application of this method is illustrated by an example. The analysis shows that the energy safety factor has clear physical meaning for two-dimensional slope stability analysis and is easy to apply and extend to the three-dimensional stability analysis of soil slope. The results show that the three types of soil failure modes proposed in this paper are more suitable for the stability analysis of three-dimensional soil slopes under local pressure.