The Soil table for the Global and
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Detailed assessment method (check the filter at the Soils)
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The user can add new or remove rows to the soil table or change the properties of the soilthe parameters per layer
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NOTE: The state parameter Ψ5m entered per layer is used only in step 1 of the Global check to determine the thickness of the sensitive layer(s) Hvw.
The description of all these parameters can be found on the page Input parameters.
Soil parameters
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per layer
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for the Global and Detailed assessment method
Name in English | Name in Dutch | Description | Symbol | Unit | Default + decimals + (range) | Used in Method/Model
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Name | Naam | Material name |
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Color | Kleur | Material color |
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| Description | Beschrijving | A short description of the material can be given |
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Soil type | Grondtype | Soil type is used to determine | if the material is sensitive to liquefaction |
| Booleanpredefined dropdown list |
| All | ||||||
Unit weight of grains | Volume gewicht van korrels | Unit weight of grains | γsand | kN/m3 | 26.50 (20-30) | HMBreach/ Sliq2D | |||||||
| Friction angle | Hoek van inwendige wrijving | Angle of internal friction | Phi | grad. | 0.0 (0-89) | HMBreach/ Sliq2D | |||||||
| Description | Beschrijving | A short description of the material can be given |
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| All | State parameter over 5m | State parameter over 5 m | Lowest average state parameter over 5m (cumulative) between water level and 0,5 times the channel depth below the bottom of the channel. Only used in step 1 of the Global check to determine Hvw (thickness of the sensitive layers). | Psi 5m | 0.0000 (-10-10) | Global | |
Fine diameter D15 | Fijne diameter D15 | Grain size: (D15 <D50) | D15 | micro m | 0.0 (30-2000) +(D15 <D50) | Global/ HMBreach
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Median diameter D50 | Gemiddelde diameter D50 | Median grain size (D50 > D15) | D50 | micro m | 0.0 (30-2000)(D15 <D50) | Global/Detailed HMBreach | |||||||
Minimum porosity | Minimale porositeit | Minimum porosity, nmin < nmax | nmin |
| 0.00 (0.30-0.60) | HMBreach/ Sliq2D | |||||||
Maximum porosity | Maximale porositeit | Maximum porosity, n min < nmax | nmax |
| 0.00 (0.30-0.60) | HMBreach/ Sliq2D | |||||||
Porosity | Porositeit | Porosity, note: n min < n < nmax | n |
| 0 (0.30-0.60) | HMBreach/ Sliq2D | |||||||
Evoldm0 | Evoldm0 | Value of εvol;dm at mean effective stress p0. | εvol;dm0 | – | 0.00 (0.0003-0.03) | Sliq2D | |||||||
s2 | s2 | Value of s at maximum contraction | s2 | – | 1.30 (1.1-1.4) | Sliq2D | |||||||
Ks0 | Ks0 | Value of Ks at average stress p0' | Ks0 | kN/m2 | 50000. (10000-140000) | Sliq2D | |||||||
m | m | Parameter describing f(s), defined in equation: f(s) = A sm – B sr / (smax – s) | m | – | 2.00 (1.5-3.0) | Sliq2D | |||||||
r | r | Parameter describing f(s), defined in equation: f(s) = A sm – B sr / (smax – s) | r | – | 7.0 Fixed value | Sliq2D | |||||||
u | u | Parameter describing the influence of p’ on Ks defined in equation: Ks = Ks0 (p' / p0')u | u | – | 1.00 (0.5-1.5) | Sliq2D | |||||||
v | v | Parameter describing the influence of p'CON on εvoldm, defined in equation: εvol;dm = εvol;dm0 (pCON' / p0')v | v | – | 1.25 (0.5-1.5) | Sliq2D | |||||||
| Permeability | Permeability | The calculated permeability during the Advanced Breaching calculation (HMBreach), available only for sand layers. | k | HMBreach |
See the list of soil parameters for all assessment methods including the advanced models
A symbol list of the parameters can be found in the background part: Symbol list