Hydro-Mechanical Properties of an Unsaturated Frictional Material

56 CHAPTER 2. STATE OF THE ART
0.2
0.6 0.8 1.0 (-)
Rel. hydr. conductivity Childs and Collis George (1950) Mualem (1976) Brooks and Corey (1964):
0.4
0.0
0.2 0.4 0.6 0.8 1.0 Effective saturation (-) 0.0
0.2 0.4 0.6 0.8 1.0
Rel. hydr. condictivity (-) Childs and Collis George (1950) Mualem (1976) Van Genuchten (1980) - a, n:
0.0
0.2 0.6 0.8 1.0 Effective saturation (-) 0.0 0.4
0.4 0.6 0.8 1.0 (-)
Rel. hydr. conductivity Childs and Collis George (1950) Mualem (1976) Van Genuchten (1980) - a, n, m:
0.2 0.0
0.2 0.6 1.0 saturation 0.0 0.4 0.8
0.6 0.8 1.0 Effective (-)
conductivity (-) Childs and Collis George (1950) Mualem (1976) Fredlund and Xing (1994):
Fredlund et al. (1994) hydr. Rel. 0.4 0.2 0.0
0.2 0.4 0.6 0.8 1.0 Effective saturation (-) 0.0
1.E-03
1.E-01 (cm/s) 1.E-02
hydr. conductivity
Unsat. 1.E-04
1.E-03
1.E-01 (cm/s) 1.E-02
hydr. conductivity
Unsat. 1.E-04
1 10 100 Suction (kPa) 0.1
1 10 100 Suction (kPa) 0.1
1.E-03 1.E-02 1.E-01
Unsat. hydr. conductivity (cm/s)
1.E-04
1.E-03
1.E-01 (cm/s) 1.E-02
hydr. conductivity
Unsat. 1.E-04
1 10 100 Suction (kPa) 0.1
Figure 2.27: Unsaturated hydraulic conductivity of sand derived from several soil-water characteristic
curve models using statistical models
1 10 100 Suction (kPa) 0.1