Tricel Novo UK10, Technical Manual

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17
Important
•
Incorrectly installed tanks that are subject to movement, rotation or floatation may
become damaged, for which Tricel cannot accept liability.
•
During installation, do not subject tanks to buoyant forces.
•
Contact a qualified engineer if there are difficulties on site due to adverse water logging.
•
Ballasting the tank is important to avoid the tank from lifting when backfilling.
5.5 Installation procedure
5.5.1 Excavation (Dry & Wet sites)
Important
All excavation works must be done so under the strictest of supervision and in accordance with
all associated construction guide lines.
5.5.1.1 Excavation: Length & Width
Length and width of the excavation must exceed the dimensions of the Tricel wastewater treatment
plant by a minimum 500mm to maintain a minimum space of 250mm all around the tank.
Note: In gravel installations, it is imperative that the gravel backfill is thoroughly compacted to
maximise support for the tank and ensure that there will be no movement in the tank over
time.
Tricel Novo
Tank length
(m)
Tank width
(m)
Min. excavation size (L x W)
(m)
6 2.1 1.64 2.6 x 2.14
8 2.6 1.64 3.1 x 2.14
10 3.1 1.64 3.6 x 2.14
12 3.6 1.64 4.1 x 2.14
18 4.6 1.64 5.1 x 2.14
24 5.6 1.64 6.1 x 2.14
30
6.6 1.64 7.1 x 2.14
36
Tank A
2.6 1.64 3.1 x 2.14
Tank B
5.6 1.64 6.1 x 2.14
42
Tank A
2.6 1.64 3.1 x 2.14
Tank B
6.6 1.64 7.1 x 2.14
50
Tank A
3.6 1.64 4.1 x 2.14
Tank B
6.6 1.64 7.1 x 2.14
Note: The size of the area for excavation applies to both dry and wet sites. However, unstable ground
with excessive sand, peat swamps, etc., may require larger excavations. The excavation should be
maintained dry by pumping or whatever suitable means.