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Level top layer (m NAP) | Material | Formation | Material sensitive to liquefaction | D r (%) | n (%) | n min (%) | n max (%) | Gamma unsat (kN/m 3) | Gamma sat (kN/m 3) | Gamma grains (kN/m 3) | D 50 (mm) | D 15 (mm) | Phi (deg) | c (kPa) | Eps voldm0 | s max | s 2 | k so (kN/m 2) | m | r | u | v |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Grond level | Clay | Dunkirk / anthropogenic | No |
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| 18 | 18 | 26.5 |
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| 25 | 0 |
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-0.5 | Clay/Sand | Dunkirk | No |
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| 18 | 18 | 26.5 |
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| 25 | 0 |
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-6.5 | Peat | Holland | No |
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| 10 | 10 | 26.5 |
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| 25 | 0 |
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-7.5 | Clay | Calais | No |
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| 18 | 18 | 26.5 |
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| 25 | 0 |
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-8.5 | Sand clayey/Sand | Calais | Yes | 35 | 45 | 36.5 | 49.5 | 19 | 19 | 26.5 | 0.160 | 0.080 | 25 | 0 | 0.000444 | 1.575 | 1.2 | 43.2 | 3 | 7 | 1.2 | 1 |
-9.5 | Sand | Calais | Yes | 30 | 45.6 | 36.5 | 49.5 | 20 | 20 | 26.5 | 0.160 | 0.080 | 30 | 0 | 0.000325 | 1.55 | 1.2 | 41.6 | 3 | 7 | 1.2 | 1 |
-12.5 | Sand | Calais | Yes | 25 | 46.3 | 36.5 | 49.5 | 20 | 20 | 26.5 | 0.160 | 0.080 | 30 | 0 | 0.000238 | 1.525 | 1.2 | 40 | 3 | 7 | 1.2 | 1 |
-18 | Sand | Pleistocene | Yes | 60 | 41.7 | 36.5 | 49.5 | 20 | 20 | 26.5 | 0.160 | 0.080 | 35 | 0 | 0.00212 | 1.7 | 1.2 | 51.2 | 3 | 7 | 1.2 | 1 |
Benchmark results
According to the by hand calculation, both Global and Advanced checks fails.
D-FLOW SLIDE results
D-FLOW SLIDE results are in accordance with the results by hand as show in the table below.
Method | Benchmark | D-FLOW SLIDE | Relative error |
|---|---|---|---|
Global check | Failed | Failed | |
Detailed check | Failed | Failed | |
2.2. Spui dike at km 65.0 (between Oud Beijerland and Nieuw Beijerland)
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The dike profile at km 65.0 is given in the figure below.
The soil profile and the material properties are the same as for the profile at km 63.9 (see paragraph 2.1).
Benchmark results
According to the by hand calculation, both Global and Advanced checks passes.
D-FLOW SLIDE results
D-FLOW SLIDE results are in accordance with the results by hand as show in the table below.
Method | Benchmark | D-FLOW SLIDE | Relative error |
|---|---|---|---|
Global check | Passed | Passed | |
Detailed check | Passed | Passed | |
2.3. Spui dike at km 67.8 (oud Beijerland)
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The dike profile at km 67.8 is given in the figure below.
Benchmark results
According to the by hand calculation, the Global check fails and the Advanced check passes.
D-FLOW SLIDE results
D-FLOW SLIDE results differ from the results by hand for the Detailed check as show in the table below.
Method | Benchmark | D-FLOW SLIDE | Relative error |
|---|---|---|---|
Global check | Failed | Failed | |
Detailed check | Passed | Failed | |
Group 3: Benchmarks from spreadsheets
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