Table 1 Mechanical and hydraulic properties of the dam materials D 50 is mean grain size, C u is coefficient of uniformity, C c is coefficient of curvature, ρ dry is dry bulk density, e o is the initial void ratio, n is porosity, and k is coefficient of permeability
From: Hydromechanical constraints on piping failure of landslide dams: an experimental investigation
Sample name | D 50 (mm) | C u (mm) | C c (mm) | ρ dry (Mg/m3) | e o | n (%) | k (m/s) |
|---|---|---|---|---|---|---|---|
Dam mix A | 0.236 | 4.051 | 0.993 | 1.33 | 0.99 | 49.7 | 3.9 × 10−6 |
Dam mix B | 0.358 | 5.887 | 2.407 | 1.30 | 1.04 | 51.0 | 3.1 × 10−4 |
Dam mix C | 0.186 | 3.393 | 0.883 | 1.19 | 1.23 | 55.2 | 4.8 × 10−5 |
Dam mix D | 0.118 | 1.990 | 0.852 | 1.22 | 1.17 | 53.9 | 1.1 × 10−5 |
Dam mix E | 0.799 | 2.474 | 1.385 | 1.21 | 1.19 | 54.3 | 3.2 × 10−4 |
Dam mix F | 0.235 | 1.310 | 0.990 | 1.18 | 1.25 | 55.6 | 6.1 × 10−4 |
Dam mix G | 0.264 | 2.315 | 0.947 | 1.15 | 1.30 | 56.5 | 8.2 × 10−4 |
Dam mix H | 0.124 | 1.726 | 1.195 | 1.02 | 1.59 | 61.4 | 5.8 × 10−5 |