Geoscience Reference
In-Depth Information
cross-sectional area of the fill material in the bin:
A
=
10.8 m
2
;
circumference:
S
=
18.3 m;
width:
b
8.4 m;
height:
D
k
=
=
1.6 m.
For the fill density of the unsaturated geotextile container:
2650
kg/m
3
(
)
(
.
)
)
(
.
4
1590
ρ
ρ
ρ
ρ
=
=
−
⋅
s
For the fill density of the geotextile container fully saturated with water:
kg/m
3
(
)
)
(
(
.
.
4
)
.
.
4
1000
1990
ρ
ρ
ρ
+
ρ
+
⋅
ρ
s
ρ
+
⋅
ρ
=
=
−
⋅
+
ρ
w
For the relative density of the geotextile container the formula (3.5):
2650
1000
ρρ
−
−
=
=
Δ
t
(
n
)
s
s
w
(
(
.
.
4
)
. 9
.
−
−
=
⋅
⋅
ρ
1000
w
Required circumference
According to formula (6.2):
⎛
⎜
⎞
⎛
⎜
⎞
A
b
10 8
3
=
S
25
b
25
.
31
⎞
650
≥⋅
⎛
⎝
⎛
⎝
+
+
50
m
=⋅
⎝
+
b
0
0
2
5
b
0
18 3
.
≥
16 50
.
⇒
Complies
Maximum tensile load acting on the geotextile during
the opening of the split barge
According to formula (6.3):
T
g A
g
⋅
w
T
=
0 45
.
⋅
(
1990
−
1000
)
⋅
9 81 10 8
.
⋅
.
=
47 2
.
/m
Maximum fall velocity of the geotextile container during
free descent through the water
According to formula (6.9) the terminal fall (maximum possible) velocity is:
320
100 10
2
2
1990 1000
1000
V
⋅
ρρ
−
⋅
−
w
9817
=
817 m/s
9
/
V
AC
w
v
g
∞
=
⋅
g
=
⋅
⋅
⋅
.
ρ
⋅
s
C
d
w
