Geoscience Reference
In-Depth Information
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0.1
0.2
0.3
0.4
Equivalent thickness top layer [m]
0.5
0.6
0.7
0.8
0.9
1.0
Slope 1:5
Slope 1:4
Slope 1:3
Slope 1:2
Figure C.2
Design chart for shearing of subsoil for
S
op
=
0.05.
bags that lie directly on a sandy subsoil and are shown for two values of wave steep-
ness, for
s
op
0.05 (Figure C.2).
The design charts [22] contain an equivalent top layer thickness. If the units are
placed directly on sand, the equivalent thickness is equal to the actual thickness of
the top layer, where the top layer must be determined as an average over the surface
(
D
eq
=
0.03 (Figure C.1) and for
s
op
=
=
D
k
).
