Electro-osmotic consolidation of soil with variable compressibility, hydraulic conductivity and electro-osmosis conductivity. (May 2017)

• Record Type: Journal Article
• Authors: Wu, Hui; Qi, Wengang; Hu, Liming; Wen, Qingbo
• Is Part Of: Computers and geotechnics. Volume 85(2017)
• Page Start: 126
• Page End: 138
• Publication Date: 2017-05
• Subjects: Electro-osmotic consolidation -- Variable soil properties -- Analytical solution -- Numerical simulation -- Excess pore water pressure -- Degree of consolidation; Engineering geology -- Data processing -- Periodicals; Soil mechanics -- Data processing -- Periodicals; Rock mechanics -- Data processing -- Periodicals; 624.1510285
• DOI: 10.1016/j.compgeo.2016.12.026
• Languages: English
• ISSNs: 0266-352X

Abstract

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.