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Group | File name | Title | Global (VTV) | Simple (CUR-113) | Detailled Detailed (TR) | Advanced -(SLIQ2D) |
|---|---|---|---|---|---|---|
1 | bm1-1 | Study Case described in "Technisch Rapport Voorland Zettingsvloeiing" | Failed |
| Passed |
|
2 | bm2-1 | Spui dike - hmp 63.9 (location Nieuw Beijerland) | Failed |
| Failed |
|
| bm2-2 | Spui dike - hmp 65.0 (between locations Oud Beijerland and Nieuw Beijerland) | Passed |
| Passed |
|
| bm2-3 | Spui dike - hmp 67.8 (locationoud Beijerland) | Failed |
| Passed |
|
3 | bm3-1 | Global check with traject: step 1 = no, step 3 = yes |
|
|
|
|
| bm3-2 | Global check with traject: step 1 = no, step 3 = no |
|
|
|
|
| bm3-3 | Global check with traject: |
|
|
|
|
4 | bm4-1 | Test on the level indicator |
|
|
|
|
5 | bm5-1a | Comparison with SLIQ2D - Case LGZM1 |
|
|
| Failed |
| bm5-1b | Comparison with SLIQ2D - Case LGZM2 |
|
|
| Failed |
| bm5-1c | Comparison with SLIQ2D - Case LGZM3 |
|
|
| Failed |
| bm5-1d | Comparison with SLIQ2D - Case LGZM4 |
|
|
| Failed |
| bm5-1e | Comparison with SLIQ2D - Case SIMPLETA |
|
|
| Failed |
| bm5-1f | Comparison with SLIQ2D - Case LG1D5N5H |
|
|
| Failed |
| bm5-1g | Comparison with SLIQ2D - Case HBPZBUI3 |
|
|
| Failed |
| bm5-2 | Comparison with DZettingsVloeiing - Study Case described in "Technisch Rapport Voorland Zettingsvloeiing" |
|
| Passed |
|
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This section describes a number of benchmarks for which an exact analytical solution can be found in the literature.
Study Case described in "Technisch Rapport Voorland Zettingsvloeiing"
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Description
The example given in "Annex A - Case Study" of the Deltares report 1200503-001-GEO-0004 "Concept Technisch Rapport Voorland Zettingsvloeiing" of G.A. van den Ham & Co is used.
In this example, both global and detailed checks are completed on the basis of a (fictitious) dike section, which with regard to geometry and soil structure is typical of the Southwest Delta.
The dike has a height of NAP+5 m and a crest width of 3 m.
The foreshore begins to imaginary toe of the dike at an elevation of NAP and is 60m 60 m wide. The toe of the trench is NAP-15 , 0 m and has a slope of 1:6. The dike section is 800m 800 m long.
The soil profile is as follows:
- from NAP+3.5 m to NAP+1 m: peat
- from NAP+1 m to NAP-5 m: silty clay
- from NAP-5 m to NAP-18 m: moderately to loosely compacted sand (Calais) *
- from NAP-18 m to NAP-30 m: densely compacted sand
Benchmarks results
The details of the analytical calculation can be found
in annexe A of the report. The main results are given in the table below. The global check fails but the detailed check passes.
Description
Group 2: Benchmarks from literature (approximate solution)
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hmp 65.0 (between Oud Beijerland and Nieuw Beijerland)
Description
Benchmark results
D-FLOW SLIDE results
hmp 67.8 (oud Beijerland)
Description
Benchmark results
D-FLOW SLIDE results
Group 3: Benchmarks from spreadsheets
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Group 5: Benchmarks compared with other programs
Comparison with SLIQ2D (Dos and Windows) - One fully saturated layer with variable slope angle
Description
The benchmarks in this paragraph These benchmarks are intended to verify the advanced method by comparing D-FLOW SLIDE results with those from the older program SLIQ-2D, using both DOS and Windows version of this programversions of this program.
Because of the limitations in the DOS version of SLIQ2D, only one fully saturated layer is inputted. The geometry and the material properties for each cases are given in the table below.
The original slope angle is 1:1.25 and is set to "variable" so that the program will search (for each point) for the most unfavorable slope.
Benchmark name | Original file name (SLIQ 2D DOS) | Soil type | Slope height (m) | Slope angle | n (%) | n min (%) | n max (%) | Eps voldm0 | m | r | s 2 | s max | v | k so (kN/m 2) | u | Unit weight (kN/m 3) | D r (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
bm5-1a | LGZM1 | Sand clay | 21.9 | 1:4.5 | 45.5 | 50 | 35 | 0.0025 | 1.7 | 7 | 1.28 | 1.7 | 1 | 50000 | 1 | 8.856 | 30 |
bm5-1b | LGZM2 | Sand clay | 21.9 | 1:5.5 | 45.5 | 50 | 35 | 0.0035 | 1.7 | 7 | 1.28 | 1.7 | 1 | 50000 | 1 | 8.856 | 30 |
bm5-1c | LGZM3 | Sand clay | 21.9 | 1:7 | 45.5 | 50 | 35 | 0.005 | 1.7 | 7 | 1.28 | 1.7 | 1 | 50000 | 1 | 8.856 | 30 |
bm5-1d | LGZM4 | Sand clay | 21.9 | 1:7.5 | 45.5 | 50 | 35 | 0.006 | 1.7 | 7 | 1.28 | 1.7 | 1 | 50000 | 1 | 8.856 | 30 |
bm5-1e | SIMPLETA | Sea sand | 10 | 1:3.25 | 47.4 | 50 | 37 | 0.0092 | 3 | 7 | 1.23 | 1.35 | 1 | 39460 | 1.33 | 8.547 | 20 |
bm5-1f | LG1D5N5H | Sand clay | 20.9 | 1:6.5 | 40.2 | 50 | 35 | 0.0022 | 1.7 | 7 | 1.18 | 1.4 | 1 | 85000 | 1 | 9.717 | 65.333 |
bm5-1g | HBPZBUI3 | Sea sand | 22 | 1:6.5 | 45.5 | 50 | 35 | 0.0054 | 2 | 7 | 1.25 | 1.4 | 1.25 | 50000 | 1 | 8.856 | 30 |