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Idiomas disponibles
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2.4.6. Cover suitable for truck/heavy load traffic (D400 in accordance with EN124)
In case of heavy truck traffic, an appropriate cover according to EN 124 class D must be
used. In addition a load distribution plate must be provided on site (structural drawing
available at GRAF GmbH).
Saphir tank series
3. Assembly and Installation
3.1.
Building pit
In order to leave adequate work space, the ground surface of the building pit must exceed
the tank dimensions by > 500 mm on each side. The clearance to fixed structures must be at
least 1000 mm.
A slope with the angle ß must be applied according to the following table.
Non-cohesive or soft, cohesive soil
Tank must be suitable for car traffic (cover B125, D400)
Stiff or semi-firm, cohesive soil (tank accessible only)
Rock (tank accessible only)
Attention: In order to be suitable for car traffic, a slope angle of a maximum of 50° must be
adhered to. The building site must be horizontal and even and must provide adequate load-
bearing capacity.
The depth of the trench must be designed so the maximum earth covering from the shoulder
of the tank does not exceed 1200mm for the Saphir tank series or 910mm for the Diamant
tank series.
A layer of compact grounded gravel (maximum grain size 8/16 mm, thickness at least 150
mm) must be laid down as a substructure.
3. Assembly and Installation
Soil typ
KLsepa.pop
Diamant tank series
Slope angle β in °
≤ 45°
≤ 50°
≤ 60°
≤ 80°
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