12.2 Dam Breach Consequences
177
Table 12.2 τ y and μ m as a
function of C v
Cv (%v/v)
τ (Pa)
μ (Pa s)
35.0
2.1
0.6
36.0
2.5
0.8
37.0
3.0
0.9
38.0
3.5
1.1
39.0
4.2
1.3
40.0
5.0
1.6
41.0
5.9
1.9
42.0
7.1
2.3
43.0
8.4
2.8
44.0
10.0
3.3
45.0
11.9
4.0
46.0
14.1
4.8
47.0
16.7
5.8
48.0
19.9
6.9
49.0
23.7
8.3
50.0
28.1
10.0
51.0
33.4
12.0
52.0
39.7
14.5
53.0
47.2
17.4
54.0
56.1
20.9
55.0
66.7
25.1
56.0
79.2
30.2
57.0
94.2
36.3
58.0
111.9
43.7
59.0
133.0
52.5
60.0
158.1
63.1
Figures in italics indicate the “normal” (Cv =45); figures in bold
indicate the “high” (Cv =50)
Table 12.3 Rheological parameters for the Bingham module to simulate the “normal” (C v = 45)
and “high” (C v = 50) tailings volumetric concentration scenarios
Scenario
Cv (%v/v)
τy (Pa)
μm (Pa s)
ρm (t/m 3 )
Normal tailings Cv 45
12
4
1.82
High tailings Cv
50
28
10
1.912