Table 2 Summary of experiment carried out for dams composed of mixed materials
From: Hydromechanical constraints on piping failure of landslide dams: an experimental investigation
Run series | Material | Composition (%) | T e (s) | T b (s) | Characteristic features |
|---|---|---|---|---|---|
1 | Dam mix A | Equal amounts of SS 4, 5, 6, 7 and 8 | 90 | 160 | Piping and hydraulic fracturing |
2 | Dam mix B | SS-5 and SS-8 (70:30) | 98 | 145 | Piping followed by pipe roof collapse |
3 | Dam mix C | SS-6 and SS-8 (30:70) | 82 | 158 | Piping followed by pipe roof collapse |
4 | Dam mix D | SS-4 and SS-8 (30:70) | 86 | 184 | Well-defined piping hole which supported the pipe roof |