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The liquefaction cycle and the role of drainage in liquefaction

机译:液化循环及排水在液化中的作用

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In this work the liquefaction cycle is introduced as a framework to describe the coupled processes that take place in fluid-saturated granular media that lead to liquefaction. The modular formulation of liquefaction makes it possible to test the various processes that contribute to liquefaction separately, and to assemble different formulations of the relevant physics into a numerical model for liquefaction. This view on liquefaction is used here to assess the role of drainage in liquefaction. We present a simple scale analysis of the role of drainage. A numerical implementation of the liquefaction cycle shows, however, that the scale analysis is deceptive for the case when strong spatial variations in the permeability inhibit fluid migration. As an illustration the numerical model is used to quantify the imprint of a low-permeability layer on the liquefaction behavior.
机译:在这项工作中,液化循环被引入到框架中,以描述在导致液化的流体饱和颗粒介质中发生的耦合过程。液化的模块化公式化使得可以分别测试有助于液化的各种过程,并将相关物理的不同公式化为液化的数值模型。这种关于液化的观点在这里用来评估排水在液化中的作用。我们提出了排水作用的简单规模分析。但是,液化循环的数值实现表明,对于渗透率的强烈空间变化抑制流体迁移的情况,比例分析具有欺骗性。作为说明,数值模型用于量化低渗透层对液化行为的影响。

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