Environmental Engineering Reference
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80
70
60
50
40
Fredlund and Xing (1994) fit
Experimental drying SECC
30
20
10
0
1
× 10
6
0.1
1
10
100
1000
10,000
100,000
Soil suction, kPa
Figure 2.26
Experimental SWCC data for Black clay (data from Dagg et al., 1967).
3.5
3.0
80% saturation
100% saturation
Hyperbolic fit
Experimental data
2.5
2.0
1.5
1.0
0.5
0
0
10
20
30
40
50
60
70
80
Gravimetric water content, %
Figure 2.27
Experimental shrinkage curve data for Black clay;
a
sh
=
0
.
386,
b
sh
=
0
.
14,
c
sh
=
5
.
04 (data from Dagg et al., 1967).
2.20
1.98
1.76
1.54
1.32
Calculated void ratio
versus soil suction
1.10
0.88
0.66
0.44
0.22
0
1
× 10
6
0.1
1
10
100
1000
10,000
100,000
Soil suction, kPa
Figure 2.28
Void ratio versus soil suction computed from SWCC and shrinkage curve for Black
clay (data from Dagg et al., 1967).
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