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Global check - Step 3: The foreland is natural => Go to step 4.
Global check - Step 4: The slope channel is 1:7,1 so steeper than 1:7 => Flow slide is possible based on geometry => Global check fails.
Detailed check: The determination of the reliability index for the Detailed check is not possible using the spreadsheet because the formula implemented in the spreadsheet applies only for horizontal foreland, which is not the case here.
Overall check: As the Detailed check result is not known, the Overall result can't be deduced.
Case D:
Global check - Step 1: Same results as benchmark 1-1 (flow slide would lead to damage on levee) => Go to step 3.
Global check - Step 3: The foreland is natural => Go to step 4.
Global check - Step 4:
Idem case B
D-Flow Slide results
D-FLOW SLIDE results are in accordance with the results by hand as show in the tables below.
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Results of benchmark 3-1 for case C
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| Benchmark | D-FLOW SLIDE | Relative error |
|---|---|---|---|
Marge | 31.514 | 31.514 | 0.00 % |
| Slope [1:xxx] | 15 | 15 | 0.00 % |
Assessment level | -10.775 | -10.775 | 0.00 % |
Step 1: Is liquefaction damaging on basis of geometry? | Yes | Yes | OK |
Step 3: Artificially underwater installed and non-compacted sandy foreshore? | No | No | OK |
Result of the Global check | Fail | Fail | OK |
| Fictive channel depth Hr [m] | 17.762 | 17.762 | 0.00 % |
| Fictive slope cotan αr | 10.5 | 10.5 | 0.00 % |
| Probability of preventing a liquefaction P(ZV) [/km/year] | 3.29 × 10-7 | 3.29 × 10-7 | 0.00 % |
| Reliability index β | Not available | 3.749 | |
| P(L > Lallowable) | Not available | 8.88 × 10-5 | |
| Probability of flood damage by liquefaction P(falen|ZV) [/year] | Not available | 1.10 × 10-10 | |
| Allowable probability of failure [/year] | 2.50 × 10-6 | 2.50 × 10-6 | 0.00 % |
Result of the Detailed check | Not available | Pass | - |
| Overall result | Not available | Pass | - |
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