What the VELACS project has revealed

What the VELACS project has revealed
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VELACS 项目揭示了什么

DOI：
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发表时间：
1994
期刊：
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影响因子：
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通讯作者：
T. Tan
T. Tan
中科院分区：
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文献类型：
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作者：
K. Arulanandan;M. Manzari;X. Zeng;M. Fagan;R. Scott;T. Tan

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开展VELACS项目是为了改进现有的分析方法 土壤液化的后果。该项目表明，离心机的研究只有在以下情况下才能重复 精心控制的条件。大多数手术都能预测宫缩时液化的发生。 土，但只有基于有效应力的完全耦合的非线性程序才能预测 液化。目前可用的程序都不能模拟膨胀土的行为 足够了。问题归因于本构模型实施不当和不充分 校准。
The VELACS project was conducted in order to improve existing methods for the analysis of the consequences of soil liquefaction. The project showed that centrifuge studies are repeatable only under carefully controlled conditions. Most procedures were able to predict the onset of liquefaction in contractive soils, but only effective stress based fully coupled nonlinear procedures were able to predict deformations due to liquefaction. None of the currently available procedures could simulate the behavior of dilative soils adequately. Problems were attributed to improper constitutive model implementation and inadequate calibration.