Hydro-Mechanical Properties of an Unsaturated Frictional Material

Volumetric water content (%)
Saturation (-)
50
40
30
20
10
0
1.0
0.8
0.6
0.4
0.2
0.0
Dense specimen
Initial void ratio = 0.67
(70 mm) - drainage Layer (70 mm) - imbibition Layer (160 mm) - drainage Layer (160 mm) - imbibition Layer
(260 mm) - drainage Layer
0.1 1 10 100
Suction
Layer (260 mm) - imbibition Best fit - drainage Best fit - imbibition
(kPa)
0.1 1 10 100
Suction (kPa)
Figure B.4: Experimental results and best fit (Fredlund and Xing 1994) for drainage and
imbibition process from sand column test II (dense specimen, steady state test)
221