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A constitutive framework to model the undrained loading of municipal solid waste

机译:用于模拟城市固体废物不排水负荷的本构框架

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This paper proposes a model to represent the MSW undrained mechanical behavior, which is an extension of the previous models developed by the authors. A more comprehensive formulation for effective stress is adopted taking into account the compressibility of waste particles and the concepts embraced in the Skempton's equation for effective stress. The model reproduces the main MSW features such as high pore water pressure generation, concave upward curves and high shear strength values, even for u = sigma(3) (zero net confining stress). Model predictions showed good adherence to experimental results. MSW samples of different sources were used in the simulations. (C) 2016 Elsevier Ltd. All rights reserved.
机译:本文提出了一个代表MSW不排水力学行为的模型,该模型是作者先前开发的模型的扩展。考虑到废物颗粒的可压缩性以及Skempton方程中包含的有效应力概念,采用了更为全面的有效应力公式。该模型重现了MSW的主要特征,例如产生高孔隙水压力,向上凹入的曲线和较高的抗剪强度值,即使对于u = sigma(3)(零净围压)也是如此。模型预测显示出对实验结果的良好依从性。模拟中使用了不同来源的城市固体废弃物样品。 (C)2016 Elsevier Ltd.保留所有权利。

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