20 tonnes - Stanley John Ltd

Infiltration and Attenuation
Systems
Intelligent STANLEY stormwater JOHN LTD: STORMWATER solutions CELL by SOLUTIONS Wavin
Product and
Installation Guide
FOR RESIDENTIAL, COMMERCIAL,
INDUSTRIAL AND INFRASTRUCTURE
APPLICATIONS
91

STANLEY JOHN LTD: STORMWATER CELL SOLUTIONS
INFILTRATION & ATTENUATION SYSTEMS
4
92
General Introduction
The development of sites results in a large
proportion of area being covered by
impermeable surfaces such as roofs, car
parks and roads. Surface water run-off
therefore increases up to 80%. Regulators
(Environment Agency, Scottish Environment
Protection Agency and local authorities) are
promoting the use of Sustainable Drainage
Systems (SUDS) that control run-off to that
of a greenfield site (around 20%).
Infiltration and Attenuation Systems
CUSTOMER SERVICES
01249 766611
AquaCell Plus
AquaCell Core
AquaCell Lite
TECHNICAL ENQUIRIES
01249 766655
General introduction ■ General introduction Infiltration and Attenuation Systems
■ Infiltration and Attenuation Systems
The Intesio Stormwater Infiltration and
Attenuation Systems have been
developed to provide a method of source
control in two ways:
By providing temporary storage for
excess flows and limiting outflow to
streams and rivers.
By providing soakaways to infiltrate
stormwater back into the ground.
TECHNICAL FAX
01249 766653
The modular nature of the Intesio
Stormwater Infiltration and Attenuation
Systems means that they can be tailored
to suit the specific requirements of each
site. They can be used to provide
temporary storage, attenuation and
infiltration capacity for run-off for all sizes
and types of site: from individual houses
up to the largest commercial
developments.
Intesio AquaCell ® Systems:
The AquaCell systems are a fully tried and
tested modular technique for managing
excessive rainfall by creating an
underground structure as either a
temporary storage tank or a soakaway:
AquaCell Plus (light blue unit)
inspectable, for use in deep/trafficked
locations
AquaCell Core (blue unit)
for trafficked locations
AquaCell Lite (green unit)
for landscaped and non-trafficked sites
Box systems –
select with care
Rising rainfall levels, and increased
focus on SUDS compliance, have led
to a sharp increase in the use of modular
box systems to create underground
structures for infiltration or temporary
storage of stormwater.
However, not all currently available
systems have the proven performance
characteristics necessary for the wide
range of complex underground
geocellular applications.
With Intesio AquaCell systems
,
however, the required strength and
hydraulic capabilities have been verified
by independent testing.
EMAIL
info@wavin.co.uk

STANLEY JOHN LTD: STORMWATER CELL SOLUTIONS
INFILTRATION AND ATTENUATION SYSTEMS
Infiltration and Attenuation Systems ■ The AquaCell ® Infiltration and Attenuation Systems Principle
■ The AquaCell ® Principle
Infiltration and Attenuation Systems continued
Garastor ® System*
A polypropylene flow control chamber
connected to a water storage reservoir
EITHER made up of AquaCell units or
located in a void beneath the garage of
individual houses.
* Depending on the application either AquaCell Core or
AquaCell Lite may be used in conjunction with Garastor.
For further details contact Wavin Technical Design.
The AquaCell ® Principle
The AquaCell Stormwater
Management System
Comprises individual infiltration modules
assembled together to form underground
structures which can either be used for
stormwater storage or as an alternative to
domestic soakaways.
Large scale AquaCell Core storage tank
AquaCell Lite soakaway
INFILTRATION AND ATTENUATION SYSTEMS Product & Installation Guide 2009
www.intesio.co.uk
Garastor domestic storage using AquaCell Core
tank
Note: Garastor can be used as a flow control device
for any AquaCell storage system, no greater than one
unit deep with a discharge of up to 1.4 l/s via the
30mm release flow orifice.
Garastor domestic storage using garage void
* Garastor is manufactured under licence
(Patent Number GB2357093)
Heavy storms and major cloudbursts are Stormwater must be controlled; either by
becoming more frequent, resulting in ever limiting the outflow and providing
increasing volumes of stormwater flowing temporary storage or where the ground
into conventional drainage systems and conditions are suitable, providing
water courses. When the capacities of these soakaways for the stormwater to infiltrate
systems are exceeded the consequences back into the surrounding ground.
can be dramatic and damaging.
This has the added benefit of recharging
the local groundwater.
Both options can be achieved using either
the AquaCell Plus, Core or Lite systems
depending on the application.
Domestic AquaCell Core soakaway
INFILTRATION AND ATTENUATION SYSTEMS
General Introduction ■ The AquaCell ® Principle ■
Infiltration & Attenuation Systems
5
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STANLEY JOHN LTD: STORMWATER CELL SOLUTIONS
INFILTRATION & ATTENUATION SYSTEMS
6
94
Overview of AquaCell ® Systems
AquaCell systems are a fully tried and
tested modular technique for managing
excessive rainfall. Units are assembled to
create an underground structure as either
temporary storage tank or soakaway.
There are now 3 types of unit:
NEW AquaCell Plus
for extra deep installations and/or
inspectability (pages 8-9)
AquaCell Core
for trafficked locations (page 10), and
AquaCell Lite
for landscaped and non-trafficked
locations (page 11)
For quick, versatile
assembly
The lightweight polypropylene, high void
units are securely linked together using
special clips and shear connectors.
They can be assembled quickly on site into
whatever configuration suits each specific
location.
AquaCell geocellular systems also allow
‘brick-bonding’, which can give extra
stability, without the need for additional
connector pieces.
Wrapped for infiltration
or storage
The complete assembly is wrapped in
either geotextile sheet or a geomembrane:
For pervious soils, the geotextile option
allows infiltration of stormwater into the
surrounding ground.
For impervious ground (e.g. clay) or where
infiltration is not desirable, the
geomembrane holds stormwater in
temporary storage until local drainage
flows can accept it for normal disposal.
CUSTOMER SERVICES
01249 766611
TECHNICAL ENQUIRIES
01249 766655
General introduction ■ Infiltration AquaCell and Attenuation Systems Overview
Systems
Benefiting community
and environment
AquaCell systems contribute the following
benefits:
Significantly reduced flooding risk
Controlled, reduced-volume release of
stormwater into existing sewer systems
or watercourses
Recharging of local groundwater
(if infiltration/soakaway application)
Aerobic purification to improve water
run-off quality
Sustainable, cost effective management
of the water environment
Helping SUDS –
and planning approval
The proven qualities and performance
of AquaCell systems not only support
the achievement of SUDS, they can
also help reinforce and enhance planning
applications, and enable development
to proceed.
TECHNICAL FAX
01249 766653
Types of Connections
There are a number of ways to provide a
controlled feed into the Aquacell Core units
to suit the required flow capacity.
These being:
1. Manifold Configuration – this
configuration utilizes standard pipe and
fittings (see page 21)
2. Box Configuration – this configuration
utilizes the AquaCell Core units
(see page 21)
3.Central Pipe Configuration – this
configuration utilizes standard perferated
TwinWall pipe and fittings (see page 21)
EMAIL
info@wavin.co.uk

10
AquaCell Core for trafficked sites
AquaCell Core is ideal for areas subject to regular and
heavy traffic loading, and particularly for larger projects.
Specifiers, developers and contractors
can now choose the right product to suit
each situation. The original AquaCell Core
(blue unit) has already proved its versatility
and functional performance advantages in
large projects designed to satisfy
demanding criteria for sustainable
drainage. Examples of projects utilising
AquaCell include:
Large scale 7,000 unit soakaway under
airport car park
2,000 unit storage tank in
contaminated land, a former power
station site
1,400 unit storage tank to store run-off
from expanding retail park
In locations where traffic loading is NOT
anticipated, AquaCell Lite (green unit)
should be selected (see page 11).
CUSTOMER SERVICES
01249 766611
TECHNICAL ENQUIRIES
01249 766655
STANLEY JOHN LTD: STORMWATER CELL SOLUTIONS
INFILTRATION & ATTENUATION SYSTEMS
General introduction ■ Infiltration AquaCell and Core Attenuation for trafficked Systems sites
In addition to features and benefits
applicable to BOTH systems those
specifically applicable to traffickable
AquaCell Core (blue unit) include:
BBA approved and can meet technical
requirements of NHBC
Proven vertical loading capacity:
56 tonnes/m2 Proven lateral loading capacity:
7.75 tonnes/m2 For installations both up to and
exceeding 1.5 metres deep
Distinctive BLUE colour
– easy to identify
Designed for all configurations and
applications, including both shallow
and deeper installations:
– Ideal for all sizes of project including
major attenuation schemes
AquaCell Core
Part No: 6LB100
TECHNICAL FAX
01249 766653
Typical applications:
Industrial/commercial areas
Residential developments
Roads
Car parks
EMAIL
info@wavin.co.uk
95

STANLEY JOHN LTD: STORMWATER CELL SOLUTIONS
INFILTRATION AND ATTENUATION SYSTEMS
SYSTEMS
96
AquaCell Lite for landscaped and non-trafficked sites
Infiltration and Attenuation Systems ■ The AquaCell ® Principle
AquaCell Lite for landscaped and non-trafficked sites
AquaCell Lite has been designed and developed
for landscaped and other traffic-free areas where heavy
loading capability is not required.
This now enables specifiers, developers
and contractors to choose the right
product to suit each situation.
AquaCell Lite (green unit) offers all the
proven installation versatility and functional
performance advantages of AquaCell Core
(see page 10), but has been specifically
engineered to provide a cost-effective
option for low-loaded locations.
AquaCell Lite
Part No: 6LB050
INFILTRATION AND ATTENUATION SYSTEMS Product & Installation Guide 2009
www.intesio.co.uk
In addition to features and benefits
applicable to BOTH systems those
specifically applicable to AquaCell Lite
(green unit) include:
Proven vertical loading capacity:
17.5 tonnes/m2 Proven lateral loading capacity:
4.0 tonnes/m2 For installation depth (to base of units)
of up to 1.5 metres maximum
Built-in ‘hand holes’ for easy
carrying/handling
Distinctive GREEN colour
– easy to identify
Specifically designed for restricted
depth, low-loaded, landscaped sites:
– Ideal for smaller projects
Note: NOT suitable for locations subject to high
watertable
INFILTRATION AND ATTENUATION SYSTEMS
AquaCell Core ® ■ AquaCell Lite ®
Typical applications:
Domestic gardens
Grassed and leisure areas
Roundabouts
Domestic back gardens
11

STANLEY JOHN LTD: STORMWATER CELL SOLUTIONS
INFILTRATION AND AND ATTENUATION SYSTEMS
System Selector ■ Design and Installation Guidance
Infiltration and Attenuation Systems ■ The AquaCell ® Principle
AquaCell Systems – System Selector
The following will help you determine which AquaCell system,
or combination of systems, is correct for each specific project.
Lite
Will the site be subject to traffic loadings ?
NO YES
Does the site have a high water table ?
NO
Will BOTH the tank length AND width be
MORE THAN 12m ?
NO
Will the tank be MORE THAN 1.5m deep?
NO
Use:
up to 1.5m
Hydraulic and structural
design
All AquaCell system units have identical
dimensions: 1m x 0.4m x 0.5m, with a
nominal void ratio of 95%. Hydraulic
calculations are accordingly the same for
both systems.
Structural design requires careful
consideration of loading factors specific
to each location.
INFILTRATION AND ATTENUATION SYSTEMS Product & Installation Guide 2009
www.intesio.co.uk
YES
YES
YES
Will the tank be MORE THAN 4.25m deep?
NO YES NO YES
Use combination of:
Lite up to 1.5m
Core up to 4.25m
Design and Installation Guidance
Use combination of:
Lite up to 1.5m
Core up to 4.25m
Plus up to 5.08m
Landscaped/non-trafficked areas
Car parks, vehicle up to 2500kg a
Location type
gross mass, with AquaCell system:
– up to 3 AquaCell units wide in trench
– more than 3 AquaCell units wide
MAXIMUM depth to base of unit
a For specific advice on cover
depths for heavier loadings/HGV
applications, contact Wavin
Technical Design on 01249
766655.
b 0.3 is minimum depth for AquaCell
Lite, although 0.5m cover is
recommended to prevent accidental
damage. If construction plant is to
be used on site, extra
protection may be needed.
MINIMUM cover depth
AquaCell
Lite
0.3m b
n/a
n/a
1.5m
AquaCell
Core
0.5m
0.6m
0.75m
4.25m c
Key
Lite = AquaCell Lite (6LB050)
Core
= AquaCell Core (6LB100)
Plus Plus = AquaCell Plus (6LB200)
= Inspection channels can be
incorporated into
bottom layer of tank
using aligned runs of
AquaCell Plus units.
If the structure requires
inspection contact
Wavin Technical Design
on 01249 766655.
Will the tank need to be installed
extra deep (i.e. DEEPER THAN
4.1m in ideal soil conditions)?
Use:
Use combination of:
Core up to 4.1m Core up to 4.1m
Plus up to 4.78m
c Allowable maximum depth to base
of bottom layer
of units is dependent on soil type,
angle of shearing resistance,
loadings, and groundwater level. In
poor ground conditions a shallower
depth may apply.
INFILTRATION AND ATTENUATION SYSTEMS
Principal Components ■ System Selector ■ Design Guidance
AquaCell
Plus
0.5m
0.6m
0.75m
5.08m
13
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STANLEY JOHN LTD: STORMWATER CELL SOLUTIONS
INFILTRATION AND ATTENUATION SYSTEMS
SYSTEMS
98
Garastor System Overview
Infiltration and Attenuation Systems ■ The AquaCell ® Principle
Garastor ® System Overview
Garastor System
The Garastor unit is a polypropylene
chamber that connects to a water storage
reservoir. There are two versions of the
Garastor available both of which are
500mm in diameter, the 6SC500 version is
1m deep for garage installations (with a
300mm storage depth capacity) and the
6SC501 is 1.25m deep for use with
AquaCell* (with a 400mm storage depth
capacity). When Garastor is used in
conjunction with an AquaCell tank the
configuration of units must be no deeper
than 1 AquaCell unit.
If site conditions are such that a deeper
Garastor unit is required then the 500mm
Extension Kit (6SC205 – consisting of a
coupler and two ring seals) can be used in
conjunction with a shaft of 500mm Twinwall
cut to suit, to extend the Garastor unit.
* Depending on the application either AquaCell Plus/Core
or Lite may be used in conjunction with Garastor. For
further details contact Wavin Technical Design.
HOW IT WORKS
Storm or surface water flows through two
110mm diameter incoming pipes. If the
flow is light to moderate, the water is
simply stored in the chamber before being
slowly released through a 30mm orifice.
However, if the inflow is heavy, excess
water in the chamber discharges through
a 150mm diameter pipe into the water
storage area (either the undercroft of a
garage or an AquaCell tank). The water is
temporarily stored until the water level
inside the chamber has dropped
sufficiently, and the water can flow out to
the drainage system via the 110mm
outflow pipe.
Inside the Garastor chamber there are
specially designed weir walls that ensure
that the hydraulics of the unit work to the
optimum levels.
INFILTRATION AND ATTENUATION SYSTEMS Product & Installation Guide 2009
www.intesio.co.uk
KEY BENEFITS
No use of valuable, developable land.
Safer than open/above ground storage structures.
Caters for 1 in 150 year storm.
Spreads cost of water storage over the development period.
Maintenance free, with no moving parts or filters.
Run-off reverts to that of a greenfield site.
AquaCell Plus, Core or
Lite units
INFILTRATION AND ATTENUATION SYSTEMS
Introduction to Garastor ■ Garastor System Overview
33

Polystorm modular cell system
three types of Polystorm cells
The Polystorm principles
The Polystorm range of modular cell systems are designed with a 95% void ratio
to retain large volumes of water run-off. The Polystorm cells can be
designed and built to a specific size to a total void volume
requirement dependant upon the water run-off volumes
required on a particular project (i.e. car park, road or
building). The Polystorm range of water storage cells
are structurally strong, individual modular cells which
can be built up to form a structure of any shape
or size. The structure is wrapped in a non-permeable,
geomembrane which can receive rainwater collected
from the roof gutter system or surface drains and either
releases the water within set discharge limits (attenuation) or,
where soil conditions allow, be wrapped in a permeable geotextile
and slowly release the water back into the surrounding soil (soakaway).
Key benefits
• 95% void ratio: Providing greater water storage capacity
and reduced excavation and disposal costs
• Modular units: Allow flexibility of shape - ideal for shallow
excavation systems, narrow strips or use in restricted areas
• Light weight yet robust: Excellent Health and Safety
and installation benefits
• Easy to handle: Unique rounded corners for ease of
handling and reduces likelihood of punctures to membranes
• Cost effective: Especially when used as a hybrid, value
•
•
•
•
•
•
•
engineered system
Recyclable: 100% recyclable at the end of its useful life
Range: Spans from 20 tonnes per square metre load bearing
capacity up to a maximum of 80 tonnes per square metre load
bearing capacity
The range can be designed for non-trafficked, trafficked or
heavily trafficked applications
Suitable for both attenuation and soakaway systems
50 year design life
BBA Approved
Hybrid Solutions available
The
STANLEY JOHN LTD: STORMWATER CELL SOLUTIONS
95% Void Ratio
There are four different types of
Polystorm cells which are Polystorm Lite,
Polystorm, Polystorm Xtra and
Polystorm-R. Each Polystorm cell type has
a different surface load specification.
•
•
•
•
Polystorm Lite is designed for use
in landscaped pedestrian or other
non-loaded applications
Polystorm is designed for use in
lightly trafficked and loaded
applications
Polystorm Xtra is designed for use
in deeper build depths for heavily
trafficked and heavy loaded
applications
Polystorm-R is produced from
carefully researched and selected
recycled materials to provide an
environmentally-friendly solution to
surface water drainage and storage
applications. Polystorm-R has a 40
tonne per square metre compression
strength and is ideal for lightly
trafficked and pedestrian applications.
Polystorm Technical Manual is available
to download at www.toolbox.polypipe.com
99

STANLEY JOHN LTD: STORMWATER CELL SOLUTIONS
100
Polystorm Lite
0.4m
0.5m
Designed for use
in landscaped,
pedestrian or
other non-loaded
applications with
a load bearing
capacity of:
20 tonnes
1.0m
Technical Specification Overview
Unit type Polystorm Lite
Product code PSM2*
Dimensions 1m x 0.5m x 0.4m high
Total volume 0.2m per cube
Unit weight 7kgs**
Cube storage volume 0.19m³ (190 litres)
Surface area 55% perforated
Compressive strength Maximum 20 tonnes per sq metre
Maximum burial depth 2.5m***
* Each unit includes 4 clips and 2 shear connectors. Please note that brick bond connector may be
required at additional cost.
** Pallet weight dependent upon order quantity and transport type.
*** In weak clay soil conditions the maximum burial depth is 1.5 metres. Polystorm Lite should not
be installed below the water table.

Polystorm
0.4m
0.5m
Designed for use
in trafficked and
loaded applications
with a load bearing
capacity of:
40 tonnes
1.0m
STANLEY JOHN LTD: STORMWATER CELL SOLUTIONS
Technical Specification Overview
Unit type Polystorm
Product code PSM1*
Dimensions 1m x 0.5m x 0.4m high
Total volume 0.2m per cube
Unit weight 9kgs**
Cube storage volume 0.19m³ (190 litres)
Surface area 48% perforated
Compressive strength Maximum 40 tonnes per sq metre
Maximum burial depth 3.7 metres***
* Each unit includes 4 clips and 2 shear connectors. Please note that brick bond connector may be
required at additional cost.
** Pallet weight dependent upon order quantity and transport type.
*** In weak clay soil conditions the maximum burial depth is reduced, please consult Polypipe’s water
management solutions technical team on 01509 615100.
101

STANLEY JOHN LTD: STORMWATER CELL SOLUTIONS
POLYSTORM-R
Product Overview
Product Overview
Introducing Polystorm-R, an an alternative to the Polystorm modular unit unit (PSM1), (PSM1), with with
the the added added benefit of of being manufactured from recycled material. Meeting the the same same
performance criteria as as Polystorm (PSM1), Polystorm-R Polystorm-R is is ideal for for use use in light in light
trafficked* and and pedestrian applications.
102
KEY FEATURES AND BENEFITS
KEY - FEATURES Made from specially AND BENEFITS selected and controlled recycled materials
NEW
* Note: Light traffic includes areas regu-
* Note: Light traffic includes areas regularly
trafficked by cars and vans (e.g. car
larly trafficked by cars and vans (e.g. car
parks) with occasional use of vehicles
parks) with occasional use of vehicles
greater than 2500kg.
greater than 2500kg.
Polystorm-R may be used in heavier trafficked
Polystorm-R applications may subject be used to a in structural heavier traf-
design ficked and applications suitable installation subject conditions. to a structural
For design further and details suitable please installation contact our conditions. technical
For department further details on 01509 please 615100. contact our technical
department on 01509 615100.
- Environmentally friendly, sustainable solution
- Has undergone stringent testing to ensure product performance
- Load capacity minimum 40 tonnes/m2 - Made from specially selected and controlled recycled materials
- Environmentally friendly, sustainable solution
- Has undergone stringent testing to ensure product performance
- Ideal for attenuation or soakaway applications/schemes with a suitable geomembrane or geotextile
- Load capacity minimum 40 tonnes/m
- Allow flexibility of shape - ideal for shallow excavation systems, narrow strips or use in restricted areas
- Integrated inlet and outlet
- 3D flow throughout the structure
- 95% void ratio
- Lightweight yet robust - Excellent health and safety and installation benefits
2
- Ideal for attenuation or soakaway applications/schemes with a suitable geomembrane or geotextile
- Allow flexibility of shape - ideal for shallow excavation systems, narrow strips or use in restricted areas
- Integrated inlet and outlet
- 3D flow throughout the structure
- 95% void ratio
- Lightweight yet robust - Excellent health and safety and installation benefits
Polypipe Civils
Head Office
Charnwood Business Park
Loughborough
Leicestershire
LE11 1LE
Tel: 01509
Polypipe
615100
Civils
NEW