Load Classes; Installation For Pedestrian Loading; Green Spaces Above The Ecobloc Inspect System; Installation For Vehicle Loading - Graf ECO BLOC INSPECT 230 Notice D'installation

6.

Load classes

6.1

Installation for pedestrian loading

When installing for pedestrian loading, vehicles of any kind must be prevented from driving over the
surface through structural measures or cordoning off. The permissable installation depths and max. earth
coverings are stated in Table 1.
6.2

Green spaces above the EcoBloc Inspect system

If a grass is planted above an infiltration system, the system should be covered with a water-impermeable
geotextile or a layer of clay roughly 100 mm (3,93") thick, otherwise the grassed area may dry out more
quickly than other areas.
6.3

Installation for vehicle loading

The minimum and maximum earth coverings differ depending on the various loading classes: car, lorry 12
(trucks), HGV (heavy goods vehicle) 30, HGV 40 (HS 20) and HGV 60 (HS-25).
The min. and max. earth coverings for the various loading classes. Deviating installation situations should
always be discussed with GRAF.
System covering (reuse excavated material and/or gravel) with a maximum weight of unit volume of
20kN/m³ (124.86 lbs/ft³).
pedestrian
Class
loading
Earth covering
0,25 (9,84")
(min.) [m]
Earth covering
2,75 (9,0´)
(max.) [m]
* Angle of friction φ ≥ 25° is required
* *Angle of friction φ ≥ 30° is required
The installation depth depends on the loading classes and the angle of friction of the material used to
cover the EcoBloc Inspect system.
pedestrian
Class
Installation
depth (max.) [m], 3,00 (9'-10")
φ = 20°
Installation
depth (max.) [m], 4,25 (13'-10.8")
φ = 30°
Installation
depth (max.) [m], 5,00 (16'-4.8")
φ = 40°
For more information about installing EcoBloc Inspect system under traffic areas up to HGV60 (HS-25)
please refer to chapters 9 and 10.
Table 1 - Earth coverings
car
0,25 (9,84")
2,75 (9,0´)
Table 2 - Maximum installation depths (bottom edge of block)
car
loading
3,00 (9'-10")
4,25 (13'-10.8")
5,00 (16'-4.8")
6. Load classes
lorry12 HGV30
0,50 (19,68") 0,50* (19,68")
2,75 (9,0´) 2,50 (8'–2.4")
lorry12
3,00 (9'-10")
4,25
(13'-10.8")
5,00
(16'-4.8")
23 / 60
HGV40 (HS-20)
0,50* (19,68")
2,25 (7'–4.5")
HGV30 HGV40
2,50
2,75 (9')
(8'-2.4")
3,75 3,75
(12'-3.6") (12'-3.6")
5,00 5,00
(16'-4.8") (16'-4.8")
HGV60 (HS-25)
0,80** (2'-7.44")
2,00 (6'-6.7")
HGV60
2,25
(7'-4.5")
3,25
(10'-8.4")
5,00
(16'-4.8")