Table 1 Dam material properties used for hydrogeological and slope stability modelling
Material | Hydraulic conductivity coeff. Kf initial (m/s) | Hydraulic conductivity coeff. Kf calibrated (m/s) | Cohesion C (kN/m2) | Internal Friction angle Ф (°) | Specific weight γ (kN/m3) |
|---|---|---|---|---|---|
1: Blast-fill | 4 10−3 | 3 10−5 | 200 | 38 | 20 |
2: Fill | 3 10−3 | 3 10−4 | 20 | 30 | 20 |
3: Gravel | 8 10−4 | 8 10−4 | 50 | 40 | 22 |
4: Gravel-sand | 8 10−4 | 1 10−6 | 50 | 40 | 22 |
5: Loam-Tarmac | 1 10−5 | 1 10−5 | 30 | 28 | 20 |
6: Clay layer | 1 10−8 | 1 10−8 | 30 | 28 | 20 |
7-8: Bentonite grouts | 1 10−10 | 1 10−10 | 30 | 28 | 20 |
9: Concrete screen | 1 10−10 | 1 10−10 | 300 | 40 | 24 |
10: Alluvium | 1 10−3 | 8 10−5 | 30 | 28 | 20 |
11: Bedrock | 4 10−3 | 1 10−9 | 300 | 40 | 24 |