Table 5 Failure patterns and breach process for all test conditions.
Test conditions | Qp (L/s) | tp (s) | Erosion characteristics | Failure patterns |
|---|---|---|---|---|
Dam 1 in Test 1 | 13.34 | 90.2 | 1. Headcut erosion 2. Headward erosion |
|
Dam 1 in Test 4 | 13.38 | 82.1 | ||
Dam 3 in Test 4 | 12.93 | 318.9 | ||
Dam 1 in Test 5 | 13.39 | 90.7 | ||
Dam 1 in Test 6 | 13.39 | 91.4 | ||
Dam 2 in Test 6 | 12.84 | 330.2 | ||
Dam 1 in Test 2 | 16.62 | 72.3 | 1. Headcut erosion 2. Headward erosion 3. Upstream slope collapse |
|
Dam 2 in Test 2 | 16.25 | 202.7 | ||
Dam 3 in Test 6 | 12.67 | 532.1 | ||
Dam 2 in Test 1 | 12.65 | 261.3 | 1. Headcut erosion 2. Headward erosion 3. Upstream slope collapse 4. Downstream slope collapse |
|
Dam 3 in Test 1 | 12.56 | 392.5 | ||
Dam 3 in Test 2 | 15.51 | 304.2 | ||
Test 4, Dam 2 | 11.88 | 210.5 | ||
Test 5, Dam 2 | 12.72 | 290.1 | ||
Test 5, Dam 3 | 12 | 481.1 | ||
Test 3, Dam 1 | 19.2 | 61.8 | 1. Layer erosion 2. Upstream slope collapse 3. Downstream slope collapse |
|
Test 3, Dam 2 | 18.19 | 171.6 | ||
Test 3, Dam 3 | 17.07 | 253.5 |
