Unsaturated Hydraulic Conductivity of Compacted Bentonite:Revisit of Microstructure Effects
Developing a sound theoretical description for the evolution of unsaturated hydraulic conductivity of compacted bentonite during re-saturation has remained a challenge because of the complex microstructure effects influenced by physico-chemical phenomena.This paper proposes a new relationship for the unsaturated hydraulic conductivity of compacted bentonite based on Kozeny-Carman relationship.A new relationship is also proposed for the relative permeability of compacted bentonite that incorporates the effects of microstructure swelling.The application of the new relationship for the case of compacted GMZ bentonite provides well correlated results with the experimental data reported in the literature.
Compacted bentonite Clay microstructure Unsaturated Permeability
Tian Chen Majid Sedighi Andrey Jivkov Suresh C.Seetharam
School of Mechanical,Aerospace and Civil Engineering,The University of Manchester,Manchester M13 9PL Engineered and Geosystems Analysis Unit,Belgian Nuclear Research Centre,SCK-CEN,2400 Mol,Belgium
国际会议
The 8th International Congress on Environmental Geotechnics(第八届国际环境土工大会)
杭州
英文
544-550
2018-10-28（万方平台首次上网日期，不代表论文的发表时间）