Environmental Engineering Reference
In-Depth Information
are given in Figure 16.22. The input parameters of the two layers have been selected
from among the current and representative values given by Rowe [ROW 98].
COMPACTED CLAY LAYER
GEOSYNTHETIC CLAY LAYER
K
b
= 1*10
-9
(m/s)
L
b
=0.6 (m)
n
b
= 0.4 (-)
D
b
= 6.35*10
-10
(m
2
/s)
n
b
D
b
= 2.54*10
-10
(m
2
)
K
b
= 2*10
-10
(m/s)
L
b
=0.007 (m)
n
b
= 0.7 (-)
D
b
= 1.59*10
-10
(m
2
/s)
n
b
D
b
= 1.1*10
-10
(m
2
)
ATTENUATION LAYER
ATTENUATION LAYER
K
a
= 10
-7
(m/s)
L
a
= 3 (m)
n
a
= 0.3 (-)
D
a
= 9.5*10
-10
(m
2
/s)
R
a
= 1 (-)
n
a
D
a
= 2.85*10
-10
(m
2
/s)
K
a
= 10
-7
(m/s)
L
a
= 3.6 (m)
n
a
= 0.3 (-)
D
a
= 9.5*10
-10
(m
2
/s)
R
a
= 1 (-)
n
a
D
a
= 2.85*10
-10
(m
2
/s)
Γ
= 1.59*10
-9
(s
-1
)
Λ
= 7.76*10
-11
(m/s)
q = 3.02*10
-9
(m/s)
Q
0
= q
h0
*t
aq
= 3.17*10
-6
(m
2
/s)
Γ
= 1.40*10
-8
(s
-1
)
Λ
= 7.89*10
-11
(m/s)
q = 2.66*10
-8
(m/s)
Q
0
= V*s = 3.17*10
-6
(m
2
/s)
R
c
= 0.661 (-) @ x = l
R
c
= 0.945 (-) @ x = l
J
h
/c
0
q
h0
= 1.951 (-)
J
h
/c
0
q
h0
= 16.34 (-)
Figure 16.22
.
Comparison of steady-state transport performance of two liners
using GCL and CCL, where subscript b is for upper layer (barrier) parameters
and subscript a for lower layer (attenuation) parameters
