Environmental Engineering Reference
In-Depth Information
Table 15.6.
Summary of embankment and rockfill properties for CFRD (Hunter, 2003; Hunter and Fell, 2002).
Embankment
dimensions
Material parameters/properties of rockfill
Rockfill moduli
Strength
*2
Dry
Layer
Height,
Rockfill
classification
d
max
% finer
density Void
thickness
E
rc
(MPa),
source
*1
(t/m
3
)
Dam name
H (m)
L/H
UCS (MPa)
C
u
(mm)
19 mm
ratio, e
(m)
Placement
average
E
rf
(MPa)
Zone 3A rockfill
Aguamilpa
185.5
2.6
Alluvium
(Very high)
85
600
34
2.22
0.18
0.6
4 p 10 t SDVR,
305
770
in moist
(250 to 330)
condition
Crotty
83
2.9
Gravels
(Very high)
70
200
48
2.54
0.20
0.6
8-12 p 6-10 t
375
470
(Pleistocene)
SDVR, watered
(113 to 636)
Golillas
125
0.9
Gravels
(Very high)
125
350
40
2.135
0.24
0.6
4 p 10 t SDVR,
155
250
water added
(145 to 165),
arching likely
Salvajina
148
2.4
Gravels
(Very high)
9.2
400
32
2.24
0.25
0.6
4 p 10 t SDVR,
205
500
water added
(175 to 260),
arching likely
Alto
140
1.9
Hornfels
(Very high)
18
600
22
2.28
0.294
0.6
4 p 10 t SDVR,
138
375
Anchicaya
20% water
(100 to 170)
(@30 to
likely arching
40% height)
Bastyan
75
5.7
Rhyolite,
(Very high)
42
600
25
2.20
0.23
1.0
8 p (10 t ?)
130
290
SW to FR
SDVR,
(120 to 140)
20% water
Cethana
110
1.9
Quarzite
(Very high)
23
900
21
2.07
0.27
0.9
4 p 10 t SDVR,
160
300
15% water
(120 to 210),
arching
likley
Chengbing
74.6
4.4
Tuff lava
UCS
80
10.4 1000
-
2.06
0.277
1.0
6 p 10 t SDVR,
43
110
Very high
25% water
Foz Do Areia
160
5.2
Basalt (max
UCS
235
6
600
10
2.12
0.33
0.8
4 p 10 t SDVR,
47
80
25% basaltic
Very high
(38 to 56)
25% water
(65 to 92)
breccia)
Ita
125
7.0
Basalt
(Very high)
11
700
12
2.179
0.308
0.8
6 p 9 t SDVR,
48
87
10% water
(83 to 91)
Kangaroo
60
3.0
Schist
UCS
25
310
600
44
2.34
0.201
0.9 to
4 p 10 t SDVR,
-
140
Creek
Medium
1.8
100% water
to high
