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| Case | Type of sand | Number of flat berm | Description | Expected result for breaching |
|---|---|---|---|---|
| A | not too fine sand | 0 | The surface line coincides with the critical (local) profile given in Table A.4.2a from CUR113b | Fail |
| B | 0 | The surface line is steeper than the critical (local) profile given in Table A.4.2a from CUR113b (local slope are 1:X-0.1m instead of 1:X) | Fail | |
| C | 0 | The surface line is softer than the critical (local) profile given in Table A.4.2a from CUR113b (local slope are 1:X+0.1m instead of 1:X) | Pass | |
| D | 0 | The surface line is softer than the critical (local) profile given in Table A.4.2a from CUR113b, but is steeper than the critical average profile at one point only | Fail | |
| E | fairly coarse sand | 0 | The surface line coincides with the critical (local) profile given in Table A.4.2a from CUR113b | Fail |
| F | 0 | The surface line is steeper than the critical (local) profile given in Table A.4.2a from CUR113b (local slope are 1:X-0.1m instead of 1:X) | Fail | |
| G | 0 | The surface line is softer than the critical (local) profile given in Table A.4.2a from CUR113b (local slope are 1:X+0.1m 35m instead of 1:X) | Pass | |
| H | 0 | The surface line is softer than the critical (local) profile given in Table A.4.2a from CUR113b, but is steeper than the critical average profile | Fail | |
| I | not too fine sand | 0 | The surface line is softer than the critical (local) profile given in Table A.4.2a from CUR113b (local slope are 1:X+0.1m instead of 1:X), but the channel is deeper than 40m. | Fail |
...
| Inputted profile along channel slope | Critical profile from CUR table A.4.2a | Result Global check - step 7 per point | |||||
|---|---|---|---|---|---|---|---|
X [m] | Z [m +GL] | Local slope [1:xxx] | Average slope [1:xxx] | Local slope [1:xxx] | Average slope [1:xxx] | Local check | Average check |
| 166 | 0 | ||||||
| 160.3 | -3 | 1.9 | 1.9 | 2 | 2 | Fail | Fail |
| 156.5 | -5 | 1.9 | 1.9 | 2 | 2 | Fail | Fail |
| 149.85 | -8.5 | 1.9 | 1.9 | 2 | 2 | Fail | Fail |
| 147 | -10 | 1.9 | 1.9 | 2 | 2 | Fail | Fail |
| 135.4 | -14 | 2.9 | 2.1857 | 3 | 2.3333 | Fail | Fail |
| 132.5 | -15 | 2.9 | 2.2333 | 3 | 2.3333 | Fail | Fail |
| 118 | -20 | 2.9 | 2.4 | 3 | 2.5 | Fail | Fail |
| 98.5 | -25 | 3.9 | 2.7 | 4 | 2.8 | Fail | Fail |
| 79 | -30 | 3.9 | 2.9 | 4 | 3 | Fail | Fail |
| 49.5 | -35 | 5.9 | 3.3286 | 6 | 3.43 | Fail | Fail |
| 20 | -40 | 5.9 | 3.65 | 6 | 3.75 | Fail | Fail |
Case G:
The surface line is softer than the critical (local) profile given in Table A.4.2a from CUR113b (local slope are 1:X+0.35m instead of 1:X).
The soil has grain diameters of D50 = 500.1 μm and D15 = 250.1 μm, which corresponds to "Fairly coarse sand" soil type.
The local and average checks for all the points along the channel slope pass, so the Global check for Step 7 - Breaching passes.
| Inputted profile along channel slope | Critical profile from CUR table A.4.2a | Result Global check - step 7 per point | |||||
|---|---|---|---|---|---|---|---|
X [m] | Z [m +GL] | Local slope [1:xxx] | Average slope [1:xxx] | Local slope [1:xxx] | Average slope [1:xxx] | Local check | Average check |
| 184 | 0 | ||||||
| 176.95 | -3 | 2.35 | 2.35 | 2 | 2 | Pass | Pass |
| 172.25 | -5 | 2.35 | 2.35 | 2 | 2 | Pass | Pass |
| 164.03 | -8.5 | 2.35 | 2.35 | 2 | 2 | Pass | Pass |
| 160.5 | -10 | 2.35 | 2.35 | 2 | 2 | Pass | Pass |
| 147.1 | -14 | 3.35 | 2.6557 | 3 | 2.3333 | Pass | Pass |
| 143.75 | -15 | 3.35 | 2.6833 | 3 | 2.3333 | Pass | Pass |
| 127 | -20 | 3.35 | 2.85 | 3 | 2.5 | Pass | Pass |
| 105.25 | -25 | 4.35 | 3.15 | 4 | 2.8 | Pass | Pass |
| 83.5 | -30 | 4.35 | 3.35 | 4 | 3 | Pass | Pass |
| 51.75 | -35 | 6.35 | 3.7786 | 6 | 3.43 | Pass | Pass |
| 20 | -40 | 6.35 | 4.1 | 6 | 3.75 | Pass | Pass |
Case I:
| Inputted profile along channel slope | Critical profile from CUR table A.4.2a | Result Global check - step 7 per point | |||||
|---|---|---|---|---|---|---|---|
X [m] | Z [m +GL] | Local slope [1:xxx] | Average slope [1:xxx] | Local slope [1:xxx] | Average slope [1:xxx] | Local check | Average check |
| 274.1 | 0 | ||||||
| 267.8 | -3 | 2.1 | 2.1 | 2 | 2 | Pass | Pass |
| 263.6 | -5 | 2.1 | 2.1 | 2 | 2 | Pass | Pass |
| 252.75 | -8.5 | 3.1 | 2.5118 | 3 | 2.5 | Pass | Pass |
| 248.1 | -10 | 3.1 | 2.6 | 3 | 2.5 | Pass | Pass |
| 231.7 | -14 | 4.1 | 3.0286 | 4 | 3 | Pass | Pass |
| 227.6 | -15 | 4.1 | 3.1 | 4 | 3 | Pass | Pass |
| 202.1 | -20 | 5.1 | 3.6 | 5 | 3.5 | Pass | Pass |
| 171.6 | -25 | 6.1 | 4.1 | 6 | 4 | Pass | Pass |
| 131.1 | -30 | 8.1 | 4.7667 | 8 | 4.67 | Pass | Pass |
| 80.6 | -35 | 10.1 | 5.5286 | 10 | 5.43 | Pass | Pass |
| 20 | -41 | 10.1 | 6.1976 | 10 | 6 | Pass | Pass |
...