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2009•Chinese Journal of Geotechnical EngineeringRequires access

One-dimensional consolidation of saturated cohesive soil considering non-Darcy flows

Sun Ai-rong

Open publisher page 5 citations

Abstract

A non-Darcy flow model is introduced and analyzed.With the model,Terzaghi’s one-dimensional consolidation model is modified,and a numerical calculation is used to solve the new Terzaghi model.The regular pattern of consolidation process is analyzed and the results indicate that the excess pore water pressure dissipated slowly is one of the causes of the secondary consolidation.The effect of the initial hydraulic gradient,critical hydraulic gradient,instantaneously applied load and soil thickness on consolidation process is discussed,and the formula to determine the scope of application of non-Darcy flows is introduced.

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What this paper is about

A non-Darcy flow model is introduced and analyzed.With the model,Terzaghi’s one-dimensional consolidation model is modified,and a numerical calculation is used to solve the new Terzaghi model.The regular pattern of consolidation process is analyzed and the results indicate that the excess pore water pressure dissipated slowly is one of the causes of the secondary consolidation.The effect of the initial hydraulic gradient,critical hydraulic gradient,instantaneously applied load and soil thickness on consolidation process is discussed,and the formula to determine the scope of application of non-Darcy flows is introduced.

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OpenAlex reports 5 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A non-Darcy flow model is introduced and analyzed.With the model,Terzaghi’s one-dimensional consolidation model is modified,and a numerical calculation is used to solve the new Terzaghi model.The regular pattern of consolidation process is analyzed and the results indicate that the excess pore water pressure dissipated slowly is one of the causes of the secondary consolidation.The effect of the initial hydraulic gradient,critical hydraulic gradient,instantaneously applied load and soil thickness on consolidation process is discussed,and the formula to determine the scope of application of non-Darcy flows is introduced.

Key concepts: Terzaghi's principle, Consolidation (business), Geotechnical engineering, Darcy's law, Pore water pressure, Mechanics, Geology, Porosity

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