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按有效应力原理并用有限单元法分析砂土的液化过程是国际上近两年来出现的新动向。目前已发表的文献仅限于探讨—维应力状态的地基水平振动问题。本文试图把这一合理的分析分法推广到两维问题,以便能用于分析堤坝、岸坡、挡土墙等工程。文中还提出了同时计算地震时土体中各单元液化和残余变形发展过程的设想。由于尚未经过实际工程计算的考验,文中的某些提议仅仅是初步的,有待于将来改进。
Analysing the liquefaction process of sand by using the effective stress principle and the finite element method is a new trend in the world in the past two years. The current published literature is limited to the discussion of the problem of ground-level vibration in the state of stress-dimensional stress. This article attempts to extend this rational analysis to the two-dimensional problem so that it can be used to analyze embankments, bank slopes, retaining walls and other projects. The paper also proposes the idea of simultaneously calculating the liquefaction and residual deformation of each unit in the soil during the earthquake. Since it has not been tested by actual engineering calculations, some of the proposals in the article are only preliminary and need to be improved in the future.