10-09-2014, 10:30 AM
(This post was last modified: 10-10-2014, 06:30 AM by Dell_Brett.)
i would say start with Fredlund's book and some of PhD thesis where you can find a clear explanation of the concept of unsaturated soil. Also I recommended to start with the concept of Soil Suction which is an important stress-state variable of unsaturated soils, and then you can study the the behavior of unsaturated soils (the shear strength, the hydraulic conductivity, and the volume change).