A. INSTALLATION GUIDE 4. INSTALLATION OF THE TANKS
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Installation and User guide – ECOROCK 700 to 900 Units – 05-12-2016
4.5 INSTALLATION UNDER ROADS, COURTYARDS OR STORAGE AREAS
Installation conditions:
Roads, courtyards or storage areas: The installation will be carried out in accordance with the
preceding paragraphs, taking into account the nature of the soil.
For an installation under roads, courtyards or storage areas, a distribution slab of
reinforced concrete should be constructed and placed above the tanks
The concrete slab must be constructed in such a way that it does not rest on the tanks
The edges of the slab must rest on the surrounding ground; the ground must be stable. If unstable
ground, specific foundations should be built
These foundations, the thickness of the slab distribution, the access to the lids of the tanks, the
unit and sampling pipe, the reinforcement and the structure of the slab, etc., will be specified by a
qualified civil engineer, based on expected traffic loads and the nature of the soil
The high air outlet pipes should preferably be installed outside the concrete slab area, if this is
impossible then they should be anchored in the slab. Ventilation
should be checked before
leaving the site in any case (smoke test).
4.6 OTHER SPECIFIC CASES
4.6.1 Incline too steep (>5%)
A retaining wall may be necessary to ensure that the backfill does not move if the incline is too steep.
The thickness and structure of any retaining wall should be specified by a qualified engineer along
with the method of construction and backfilling procedure.
Generally, the backfill material must be compacted pea gravel or lean mix concrete applied in layers
of 30 cm. (depending on ground conditions)
A detailed assessment must be carried out for all installations in difficult ground
conditions. If you are not sure about the installation, always consult a local engineer
