Electro-osmotic consolidation of soil with variable compressibility,hydraulic conductivity and electro-osmosis conductivity |
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Affiliation: | 1. Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, PR China;2. Department of Civil and Environmental Engineering, 400 Snell Engineering, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, United States |
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Abstract: | In present study, the non-linear variations of soil compressibility, hydraulic and electro-osmosis conductivities were analyzed through laboratory experiments, and incorporated in a one-dimensional model. The analytical solutions for excess pore water pressure and degree of consolidation were derived, and numerical simulations were performed to verify its effectiveness. The results indicated that both the non-linear variations of hydraulic and electro-osmosis conductivities showed remarkable impacts on the excess pore water pressure and degree of consolidation, especially for soils with relative high compressibility. A further comparison with previous analytical solutions indicated that more accurate predictions could be obtained with the proposed analytical solutions. |
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Keywords: | Electro-osmotic consolidation Variable soil properties Analytical solution Numerical simulation Excess pore water pressure Degree of consolidation |
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