Drainage (Function Value): Difference between revisions
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|description= | |description=The drainage value for this [[Building]], affecting the calculation of the [[Subsidence (Overlay)|Subsidence Overlay]]. | ||
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Latest revision as of 08:32, 15 October 2026
| Function value | Attribute | Unit | Range | Description |
|---|---|---|---|---|
| Drainage | DRAINAGE | m | -10 to 10 | The drainage value for this Building, affecting the calculation of the Subsidence Overlay. |
Values
- The default values for this Function Value are configured for specific constructions which represent drainage. The specific values are determined in cooperation with the expert party who commissioned the Subsidence Overlay.
- The default values are not overwritten during the creation of a new project.
Used for
Notes
- A negative value means passive drainage, fixing the groundwater level to the surface water level. A positive value means active drainage, keeping the ground water level at a specific height.
- While drainage affects subsidence via groundwater, this value is not used for the Water Overlay. Use a drainage object instead.