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- for the distribution of the stochastic parameters of the Detailed check (LogNormal instead of Deterministic/Normal)
- for the surface line (the length of the foreland is increased to 160 m instead of 60 m)
- a "Distance influence zone" of 10 m is used.
For case B, the same input as benchmark 1-1 (see group 1) is used except:
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Global check - Step 1:
Channel depth: H = 15 m
Thickness of the sensitive layer: Hvw = 25 m
Marge = 2 Hvw + 1.5 (H - Hvw) = 35 Marge = 2 H = 30 m
Slope of the observation profile: 1:15
Assessment level: Z = -10 m
XSsign = 85 80 m
XSzv = 30 m
XSsign > XSzv => Flow slide would not lead to damage on levee => Global check passes.
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Overall check: as Global and Detailed check pass, the Overall check passesgives a Warning message because D50 < 200 μm , an Advanced check is therefore needed.
Case B:
Global check - Step 1: Same results as benchmark 1-1 (flow slide would lead to damage on levee) => Go to step 3.
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| Benchmark | D-FLOW SLIDE | Relative error |
|---|---|---|---|
Marge | 3530.00035 | 30.000 | 0.00 % |
| Slope [1:xxx] | 15.000 | 15.000 | 0.00 % |
Assessment level | -10.000 | -10.000 | 0.00 % |
Step 1: Would flow slide lead to damage on levee? | No | No | OK |
Result of the Global check | Pass | Pass | OK |
| Fictive channel depth Hr [m] | 19.087 | 19.087 | 0.00 % |
| Fictive slope cotan αr [-] | 23.000 | 23.000 | 0.00 % |
| Max. allowable retrogression length Lallowable [m] | 150.000 | 150.000 | 0.00% |
| Probability of occurence P(ZV) [/km/year] | 92.14 × 92 × 10-79 | 2.14 × 92 × 10-7 | 0.00 % |
| Reliability index critical length β | - | 39.999 | - |
| Probability P(L > Lallowable) | 0.00 | 0.00 | 0.00 % |
| Probability of flood damage by liquefaction P(falen|ZV) [/year] | 0.00 | 0.00 | 0.00 % |
| Allowable probability of failure [/year] | 2.50 × 10-6 | 2.50 × 10-6 | 0.00 % |
Result of the Detailed check | Pass | Pass | OK |
| Overall result | PassWarning | Pass Warning | OK |
Results of benchmark 3-1 for case B
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