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5.4
Trench dimensions
The infiltration ditch is sized according to work sheet DWA A-138 (see 1.1). Please contact us for free
sizing.
The dimensions of the trench bed based on the above sizing are as follows:
-
Infiltration ditch length (sizing) + 1 m working space (all round)
-
Infiltration ditch width (sizing)
The trench height depends on the number of layers, traffic loading and planned connection heights / shafts.
The trench must also be designed in accordance with DIN 4124 "Excavation pits and trenches". In particu-
lar, this includes the slope angle. With installation depths
type of soil.
Comments:
If you have any questions about retention systems, please contact the GRAF technical
team.
mail@graf.info
www.graf.info
5. Selecting the location
+ 1 m working space (all round)
1.25 m, this must be selected according to the
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