Environmental Engineering Reference
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Figure 13.51
Constitutive surfaces for silt at low suctions and net mean stresses according to
stress path for series 1 and 2: (a) gravimetric water content surface; (b) void ratio surface.
0.75
0.3
0.25
0.72
0.75
0.3
0.2
0.25
0.69
0.72
0.15
0.2
0.66
0.69
0.1
0.15
0.63
0.66
0.05
0.1
0.6
0.63
0
0.05
0.6
0
(a)
(b)
Figure 13.52
Constitutive surfaces for sand according to stress path series 1 and 2 shown in
logarithmic stress state scales: (a) void ratio; (b) gravimetric water content.
1
3
0.9
0.8
1
2.5
3
0.7
0.9
2
0.6
0.8
2.5
0.5
0.7
1.5
2
0.4
0.6
1
0.3
0.5
1.5
0.2
0.4
0.5
1
0.1
0.3
0
0.2
0
0.5
0.1
0
0
(a)
(b)
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