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Variational approach for settlement analysis of circular plate on multilayered soil

机译:多层土壤圆板沉降分析的变分方法

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摘要

A continuum-based analysis method is developed to analyze a uniformly-loaded circular plate founded on a multilayered soil deposit. The multilayered soil deposit forms a semi-infinite half space, and the behavior of each soil layer is assumed to be linear elastic. The plate is considered to be isotropic, homogeneous, and linear elastic. We apply variational principles to obtain the governing differential equations of the plate-layered soil system and solve them semi-analytically. We then compare results from the present analyses with those from finite element analysis. Using the proposed analysis method we perform a parametric study, results from which provide important insights into the effects of soil layering - such as the thicknesses and stiffness ratios of multiple soil layers- on the flexural behavior of the circular plate. Analyses for wide ranges of plate-to-soil stiffness ratios provide further insights on plate-soil interactions. (C) 2019 Elsevier Inc. All rights reserved.
机译:开发了一种基于连续的分析方法,以分析均匀装载的圆形板,其基于多层土壤沉积物。多层土壤沉积物形成半无限半空间,假设每个土壤层的行为是线性弹性的。板被认为是各向同性,均匀的和线性弹性。我们应用变分原理,以获得板层层土壤系统的控制微分方程,并分析地解决它们。然后,我们将结果与来自有限元分析的分析进行比较。使用所提出的分析方法我们进行参数研究,从而提供了对土壤分层的影响 - 例如多层土层的厚度和刚度比对圆形板的弯曲行为来提供重要的见解。宽范围的板 - 土刚度比分析提供了对板土相互作用的进一步见解。 (c)2019 Elsevier Inc.保留所有权利。

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