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Back analysis for determination of sedimentation and consolidation properties

机译：用于确定沉降和固结特性的反分析

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摘要

A back analysis method is presented to determine the sedimentation and consolidation properties (i.e. void ratio e - effective stress sigma' relationship and void ratio e - permeability k relationship) of very soft soils which are required for solving joint sedimentation and consolidation equations. The back analysis is based on measured layer thickness or surface settlement-time response of the clay-water system from a simple settling test in a small scale tube. The parameters obtained from back analysis are used to predict settlement of centrifuge model grounds consisting of marine clay. The good agreement between the results predicted from the back analysis and centrifuge models indicates that the proposed method can provide a useful tool to identify the e- sigma' and e-k relationships and to simulate the behavior of very soft soils in actual reclaimed ground with dredged materials.
机译：提出了一种反分析方法来确定解决联合沉降和固结方程所需的非常软土的沉降和固结特性（即空隙率e-有效应力sigma'关系和空隙率e-渗透率k关系）。反向分析基于在小规模试管中进行简单的沉降试验而测得的粘土-水系统的层厚或表面沉降时间响应。从反分析中获得的参数可用于预测由海洋粘土组成的离心机模型地面的沉降。反向分析和离心模型预测的结果之间的良好一致性表明，该方法可提供有用的工具，以识别e-sigma和ek关系，并模拟带有疏dr物料的实际开垦土地中的非常软土的行为。 。

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