Numerical analysis on liquefaction-induced progressive deformation with a pore water migration

机译：液化引起孔隙水运移渐进变形的数值分析

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The purpose of this study is to understand the mechanism of progressive deformation with a migration of excess pore water pressure during liquefaction. The method is the dynamic soil-water coupled analysis using a cyclic elasto-plastic constitutive model for sand. Partially-fully saturated seepage is treated to simulate the seepage above the ground water table. A typical inclined sandy soil column, where the water table is lower than the ground surface level, was analyzed. The analysis indicated that an upward migration of excess pore water pressure through the liquefied layer caused a volume swelling of the soil underneath the ground water table, and the progressive shear deformation occurred in the soil forced by an initial shear stress during the swelling process.

机译：这项研究的目的是了解液化过程中随着过量孔隙水压力的迁移而发生的渐进变形的机理。该方法是使用循环弹塑性本构模型进行砂土的动态土水耦合分析。处理部分饱和的渗流以模拟地下水位以上的渗流。分析了地下水位低于地表水位的典型倾斜沙土柱。分析表明，多余的孔隙水压力通过液化层向上迁移，导致地下水位以下的土壤大量溶胀，并且在溶胀过程中，在初始剪切应力的作用下，土壤逐渐发生剪切变形。

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来源
《Third International Symposium on Deformation Characteristics of Geomaterials (IS LYON 2003); Sep 22-24, 2003; Lyou, France》|2003年|p.1095-1101|共7页
会议地点 Lyou France
作者
R. Uzuoka; N. Sento; M. Kazama;
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作者单位

Tohoku University, Sendai, Japan;

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原文格式 PDF
正文语种 eng
中图分类建筑科学;
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Numerical analysis on liquefaction-induced progressive deformation with a pore water migration

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