Graf PLATIN XL Notice D'installation Et D'entretien page 21

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5.2.3 Installation below HGV-bearing surfaces
The shaft can only be driven over with HGV in
conjunction with a self-supporting, iron-reinforced
concrete plate. To ensure that no additional forces
or effects of HGV-bearing are transferred to the
tanks, the dimensions and strength of the concrete
plate must be statically calculated.
If you have any questions in this regard, please
contact your GRAF-Team.
5.2.4 Installation adjacent to surfaces used by
vehicles
If the underground tanks are installed adjacent to
surfaces which are used by heavy vehicles
weighing over 3,5 t, the minimum distance away
from these surfaces is at least the depth of the
trench.
5.2.5 Connection of several tanks
Two or more tanks are connected via the assembly
surfaces by means of GRAF special seals and
basic pipes (to be provided at construction site).
The apertures must be drilled to the corresponding
size using only the GRAF special crown bit.
It must be ensured that the distance between the tanks is at least 600 mm. The pipes must project at
least 200 mm into the tanks.
mail@graf.info
www.graf.info
5.
Installation and assembly
20 / 48
max. 500 mm
max. 500
> H
min.
600 mm
H

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