非ダルシー流れを考慮した一次元圧密沈下解析

概要

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In order to investigate the effect of non-Darcy flow behavior in the one-dimensional consolidation process, a numerical simulation based on the experimental data (previous paper) was performed for a various thickness of clay layers. A general set of consolidation equations were presented in which the flow equation and the constitutive equation of soil skeleton are separated from the field equations. The equations were solved subsequently using a numerical coupling method. The results revealed that the influence of the non-Darcy flow on the time-rate of consolidation is not evident for the specimen size, but becomes remarkable as the thickness of the clay layer increases. The time lag in the consolidation process is closely related to the degree of reduction in permeability k_r for the small hydraulic gradient region.
東海大学の論文