Graf 381130 Instrucciones Para Montaje Y Mantenimiento página 14

4.2.1 Slope, embankment, etc.
On installation of the tank in the immediate vicinity (< 5 m) of a slope, earthen mound or slope, a statically
calculated supporting wall must be erected to absorb the soil pressure. The wall must exceed the
dimensions of the tank by at least 500 mm in all directions, and must be located at least 1000 mm away
from the tank.
4.2.2 Groundwater and cohesive (water-impermeable) soils (e.g. clay soil)
Sufficient drainage of the groundwater / seeping water should be
ensured if groundwater only occurs occasionally and if the soils are
cohesive and water-impermeable (e.g. loam) so that the tanks
never stand in more groundwater than is stated in the table. If
necessary, the drainage pipe must end in a vertical DN 300 pipe in
which a submersible pressure pump is fitted to pump out the
excess water. The pump should be checked regularly.
If the tanks are expected to be immersed deeper, sufficient
drainage should always be ensured.
Diamant
Max. Immersion
depth
At least earth
coverage
4.2.3 Installation adjacent to surfaces used by vehicles
If installing tanks next to areas which are driven over by vehicles,
ensure that the loads produced by heavy vehicles are not
transferred to the tanks.
Mind. away from traffic areas:
volume [L]
distance [m]
[email protected]
www.graf.info
4. Installation and assembly
2200 L 3350 L
80 cm 80 cm
80 cm 80 cm
2200 3350
2,15 2,4
4800 L 6500 L
80 cm 80 cm
80 cm 80 cm
4800 6500
2,7 3,0
13 / 32