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Case | Step 1a | Step 1c | Step 1d | Step 1e Average slope | Step 1e Breach flow | Step 1e | Global check | Detailed check | Overall result | Warning message | Information message |
---|---|---|---|---|---|---|---|---|---|---|---|
A | No | Pass | Pass | Warning | D50 < 200 μm in the Detailed check, Advanced check needed | ||||||
B | Yes | Yes | Fail | Fail | Fail | Artificial foreland, Advanced check needed | |||||
C | Yes | No | Yes | Fail | FailPass | Fail | Criteria on "steepest slope over 5 m" met, Advanced check needed | ||||
D | Yes | No | No | Yes | No | Yes | Fail | Pass | Pass | ||
E | Yes | No | No | Yes | Yes | Yes | Fail | Pass | Warning | D50 < 200 μm in the Detailed check, Advanced check needed | |
F | Yes | No | No | No | Yes | Yes | Fail | Fail | Fail | D50 < 200 μm in the Detailed check, Advanced check needed | |
G | Yes | No | No | No | No | No | Pass | Pass | Pass | ||
H | Yes | No | No | No | No | No | Pass | Fail | Warning | Global passes but Detailed fails, check input | |
I | Yes | No | No | No | No | No | Pass | Not available | Pass | ||
J | Yes | No | No | Yes | No | Yes | Fail | Not available | Not available |
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Detailed check: (see table below for intermediary results) Probability of flood damage by liquefaction < Allowable probability of failure => Detailed check should pass but as the criterium on "steepest slope over 5 m" is met, the Detailed check failspasses.
Overall check: the Overall result fails (even if the Detailed check passes) gives a warning because the criteria on "steepest slope over 5 m" is met, an Advanced check is therefore needed.
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| Benchmark | D-FLOW SLIDE | Relative error |
---|---|---|---|
Step 1a: Would flow slide lead to damage on levee? Marge [m] Slope [1:xxx] Assessment level [m + NAP] |
Yes 28.016 15.000 -10.331 |
Yes 28.016 15.000 -10.331 |
OK 0.00 % 0.00 % 0.00 % |
Step 1c: Artificially underwater installed and non-compacted sandy foreshore? | No | No | OK |
Step 1d: Flow slide possible based on criteria "steepest slope aver 5m" ? Average slope over a height of at least 5 m [1:xxx] |
Yes 3.901 |
Yes 3.901 |
OK 0.00 % |
Step 1e: Flow slide possible based on average geometry only? Total inclination of the channel slope [1:xxx] Is breaching possible? |
Yes 7.395 Yes |
Yes 7.395 Yes |
OK 0.00 % OK |
Result of the Global check | Fail | Fail | OK |
Fictive channel depth Hr [m] | 23.791 | 23.791 | 0.00 % |
Fictive slope cotan αr | 8.413 | 8.413 | 0.00 % |
Max. allowable retrogression length Lallowable [m] | 60 | 60 | 0.00 % |
Probability of preventing a liquefaction P(ZV) [/km/year] | 5.63 × 10-8 | 5.63 × 10-8 | 0.00 % |
Reliability index β | - | -1.334 | - |
P(L > Lallowable) | 9.09 × 10-1 | 9.09 × 10-1 | 0.00 % |
Probability of flood damage by liquefaction P(falen|ZV) [/year] | 5.12 × 10-8 | 5.12 × 10-8 | 0.00 % |
Allowable probability of failure [/year] | 2.50 × 10-6 | 2.50 × 10-6 | 0.00 % |
Result of the Detailed check | FailPassFail | Pass | OK |
Overall result | FailWarningFail | Warning | OK |
Results of benchmark 3-1 for case D:
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