SPEL Vortceptor, Руководство по установке

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WARNING
Collapsing excavation walls can cause injury
or death. Do not enter the wetwell excavation
unless necessary and in compliance with
OHS regulations. Follow OHS guidelines for
excavations.
WETWELLS
• Lower Wetwell onto Compacted Base then place
Wet concrete around the Unit covers 2 x Ribs plus
meets the Ballast Quantity in (table 1 and figure 1).
Cold concrete joints are not allowed. Fibreglass solid
bot- tom wetwells with external reinforcing ribs must
be installed in a continuous and monolithic concrete
pour. Concrete must extend 75mm above the second
rib from the wetwell bottom, and around the entire
circumference of the wetwell. (Refer to figure 1.)
•
Concrete slab must fill all gaps and voids in and
around the external tank reinforcing ribs.
• It may be necessary to add ballast (water) inside
the wetwell to counteract buoyancy until the
concrete is cured.
ANTI FLOATATION RING CONCRETE SLAB
Use minimum 20 mpa concrete for anti floatation
and ballast Final concrete depth, size, thickness and
reinforcements shall meet the minimum requirements
in these instructions and applicable tables. Anti
floatation ring should extend a minimum of (refer to
table 1) in all directions from the wetwell outer diameter.
CAUTION
Voids in the concrete slab around external
structural anchors will result in product damage
and environmental contamination.
A. HANDLING &
PREPARATION
WARNING
Do not stand on or under wetwell while it is being
lifted. This could result in personal injury or death.
• Do not drop or impact the wetwell.
• Wetwells should be stored horizontally and
chocked, using only appropriate materials such as
sandbags, tires, or other soft or pliable materials.
• Upon wetwell delivery and when lifting wetwell,
visually inspect entire exterior surface of the
wetwell for shipping or handling damage.
• If the wetwell must be moved by rolling, ensure
that ground to be traversed is smooth and free of
rocks, debris, or other hard objects.
• Do not roll or set the wetwell on any pipe stubout,
accessory or appurtenance installed on the
wetwell.
• The contractor is responsible for rigging, unloading
and securing the wetwell.
• When lifting the wetwell in the horizontal position,
use two slings with a spreader bar.
• Use a minimum of two lift lugs when pivoting the
wetwell from horizontal to vertical.
• Utilize all lift lugs provided at the wetwell top for
vertical lifting.
• Only a pliable strap or rope should contact the
wetwell, do not use chains, steel cables or hard
metallic slings.
!
B. SITE
PREPARATION
Dimensions of the excavation should be wide enough
to provide sufficient working room around the wetwell.
Minimum anti floatation ring and ballast dimensions are
speci- fied in (table 1).
Anti floatation ring and ballast designs in (Table 1) meet
Australian Standard Code S3600A.
(Dead load resisting floatation have a factor of safety of
0.9 applied.)
C. ANTI
FLOTATION
BALLAST FRP
WETWELLS
!
!