Flow Behavior and Solidification of Liquefied Saturated Sands

本项目研究了液化、流动和固化引起的土体有限变形的程度。研究粘性双组分边界层与固化波之间的二维相互作用，是为了建立预测横向扩展和流动破坏程度的准则(基于土壤性质和地面几何形状)。该研究是基于一维凝固过程和基于两个叠加和相互作用的连续介质(液体和固体)构建的模型。因此，本研究是将这些发现推广和推广到二维，其中分析的重点是在这种双连续介质框架下应力和应变率之间的二维本构关系的发展。这项研究的结果将提供一种更可靠的方法来预测发生与地面有关的灾害时的侧向扩散和水流破坏的程度，并估计对结构的潜在损害。

The extent of finite soil deformation caused by liquefaction, flow and solidification, is addressed in this project. The study of the two- dimensional interactions between viscous two-component boundary layers and solidification waves, is undertaken for establishing criteria (based on soil properties and ground geometry) for predicting the extent of lateral spreading and flow failures. The study is based on a one-dimensional solidification process and a model constructed on the basis of two superimposed and interacting continua, the liquid and the solids. The investigation thus, is an extension and generalization of those findings to two dimensions, where the analysis focuses on the development of the two-dimensional constitutive relations between stress and strain rate in this bi-continuum framework. The results of this study will provide a more reliable way of predicting the extent of lateral spreading and flow failures in the event of a ground related hazard, and of estimating the damage potential to structures.