Analytical solution for one-dimensional vertical electro-osmotic drainage under unsaturated conditions. (January 2019)

• Record Type: Journal Article
• Authors: Wang, Liujiang; Wang, Yaoming; Liu, Sihong; Fu, Zhongzhi; Shen, Chaomin; Yuan, Weihai
• Is Part Of: Computers and geotechnics. Volume 105(2019)
• Page Start: 27
• Page End: 36
• Publication Date: 2019-01
• Subjects: Electro-osmosis -- Drainage -- Unsaturated soil -- Analytical solution; Engineering geology -- Data processing -- Periodicals; Soil mechanics -- Data processing -- Periodicals; Rock mechanics -- Data processing -- Periodicals; 624.1510285
• DOI: 10.1016/j.compgeo.2018.09.011
• Languages: English
• ISSNs: 0266-352X

Abstract

Abstract: In this study, exponential functions were incorporated in a one-dimensional model to represent the relationships of hydraulic and electro-osmotic conductivities with matric suction and the soil-water characteristic curve. Analytical solutions for pore water pressure, water content and drainage were derived, and laboratory tests were performed to verify the effectiveness of these solutions. Finally, a parametric study indicated that the soil-water characteristics of the soil had a remarkable impact on the drainage behaviour of electro-osmosis under unsaturated conditions and that the proposed analytical solutions could be used to design electro-osmotic drainage systems in unsaturated soils.