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首页> 外文期刊>Transport in Porous Media >Bridging Effective Stress and Soil Water Retention Equations in Deforming Unsaturated Porous Media: A Thermodynamic Approach
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Bridging Effective Stress and Soil Water Retention Equations in Deforming Unsaturated Porous Media: A Thermodynamic Approach

机译:桥接不饱和多孔介质变形中的有效应力和土壤保水方程:一种热力学方法

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摘要

The finite deformation of an unsaturated porous medium is analysed from first principles of mixture theory. An expression for Bishop's effective stress is derived from (1) the deformation-dependent Brooks and Corey's water retention curve and (2) the restrictions on the constitutive relationships of an unsaturated medium subject to finite deformation. The resulting expression for the effective stress parameter x is reasonably consistent with experimental data from the literature. Hence, it is shown that Bishop's equation is constitutively linked to water retention curves in deforming media.
机译:从混合理论的第一原理分析了不饱和多孔介质的有限变形。 Bishop有效应力的表达式来自于(1)变形相关的Brooks和Corey的保水曲线,以及(2)对非饱和介质有限变形本构关系的限制。有效应力参数x的最终表达式与文献中的实验数据基本一致。因此,表明了毕晓普方程与变形介质中的保水曲线构成了本构关系。

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