...
| 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 profilesprofile 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 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 profilesprofile | 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 |
...
The local and average checks for all the points along the channel slope failpass, so the Global check for Step 7 - Breaching fails 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 |
| 264 | 0 | ||||||
| 257.7 | -3 | 2.1 | 2.1 | 2.1 | 2 | Pass | Pass |
| 253.5 | -5 | 2.1 | 2.1 | 2.1 | 2 | Pass | Pass |
| 242.65 | -8.5 | 3.1 | 2.5118 | 3.1 | 2.5 | Pass | Pass |
| 238 | -10 | 3.1 | 2.6 | 3.1 | 2.5 | Pass | Pass |
| 221.6 | -14 | 4.1 | 3.0286 | 4.1 | 3 | Pass | Pass |
| 217.5 | -15 | 4.1 | 3.1 | 4.1 | 3 | Pass | Pass |
| 192 | -20 | 5.1 | 3.6 | 5.1 | 3.5 | Pass | Pass |
| 161.5 | -25 | 6.1 | 4.1 | 6.1 | 4 | Pass | Pass |
| 121 | -30 | 8.1 | 4.7667 | 8.1 | 4.67 | Pass | Pass |
| 70.5 | -35 | 10.1 | 5.5286 | 10.1 | 5.43 | Pass | Pass |
| 20 | -40 | 10.1 | 6.1 | 10 | 6 | Pass | Pass |
Case D:
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.
The soil has grain diameters of D50 = 200.1 μm and D15 = 100.1 μm, which corresponds to "Not too fine sand" soil type.
The local and average checks for all the points along the channel slope pass except for one point for which the average check fails, so the Global check for Step 7 - Breaching fails.
| 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 |
| 263.83 | 0 | ||||||
| 257.53 | -3 | 2.1 | 2.1 | 2 | 2 | Pass | Pass |
| 253.33 | -5 | 2.1 | 2.1 | 2 | 2 | Pass | Pass |
| 242.65 | -8.5 | 3.05 | 2.4912 | 3 | 2.5 | Pass | Fail |
| 238 | -10 | 3.1 | 2.5825 | 3 | 2.5 | Pass | Pass |
| 221.6 | -14 | 4.1 | 3.0161 | 4 | 3 | Pass | Pass |
| 217.5 | -15 | 4.1 | 3.0883 | 4 | 3 | Pass | Pass |
| 192 | -20 | 5.1 | 3.5913 | 5 | 3.5 | Pass | Pass |
| 161.5 | -25 | 6.1 | 4.093 | 6 | 4 | Pass | Pass |
| 121 | -30 | 8.1 | 4.7608 | 8 | 4.67 | Pass | Pass |
| 70.5 | -35 | 10.1 | 5.5236 | 10 | 5.43 | Pass | Pass |
| 20 | -40 | 10.1 | 6.0956 | 10.1 | 6 | 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 |
...