Environmental Engineering Reference
In-Depth Information
100
80
60
40
20
0
0.001
0.01
0.1
1
10
100
Particle size, mm
Figure 2.10
Effect of varying
m
gr
parameter while holding other parameters constant;
a
gr
=
1
.
0,
n
gr
=
4
.
0,
d
r,
gr
=
1000, and
d
m
=
0
.
001 (from M.D. Fredlund et al., 2000).
100
80
60
40
d
rgr
= 1
d
rgr
= 100
20
d
rgr
= 1000
0
0.001
0.01
0.1
1
10
100
Particle size, mm
Figure 2.11
Effect of varying
d
r,
gr
parameter on grain-size distribution curve while holding
other parameters constant;
a
gr
=
1
.
0,
n
gr
=
4
.
0,
m
gr
=
0
.
5, and
d
m
=
0
.
001 (from M.D. Fredlund
et al., 2000).
100
Clay
Silt
80
Bimodal
60
Unimodal
40
Sand
20
0
0.0001
0.001
0.01
0.1
1
10
100
Particle size, mm
Experimental
USCS
Figure 2.12
Fitting of gap-graded soil with unimodal and bimodal grain-size distribution
equation (from M.D. Fredlund et al., 2000).
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