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Caissons - Below Ground Drainage

Verified by manufacturer 3 months ago

DN2000 Caisson Chamber Section x 500 mm

Marshalls Civils & Drainage Variant:

Reinforced precast concrete manhole unit.

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+44 1179 814500 Website

Application

Used for construction of pumping stations, wet wells and manholes, particularly in difficult ground conditions, adopted when the depth of water is high and the foundations are to be laid under water.

  • Suited to weak soils, high-plasticity clays, silts, sands and gravel
  • Suitable for jacking pits

Description

Marshalls Civils & Drainage offer a range of reinforced precast concrete manhole chambers specially designed for sinking by the caisson method from 2000 mm diameter to 4000 mm internal diameter in varying depth.


The caisson chamber shaft sinking system was originally designed for use in micro-tunnelling, but is now more widely used for construction of pumping stations, wet wells and manholes, particularly in difficult ground conditions, adopted when adopted when the depth of water is high and the foundations are to be laid under water. The caisson method is achieved by using a shaft sinking plate system and is manufactured in accordance to BS EN 1917:2002 and kite marked where relevant to BS 5911-3:2010.


Features and benefits:

  • Suited to weak soils, high-plasticility clays, silts, sands and gravel.
  • Minimal site labour costs as delivered ready to install.
  • Immediate permanent shafts as the caissons are constructed off-site enabling quick and easy installation.
  • Suitable for jacking pits where a hole is dug in preparation for the installation of a tunnel or casing for the machinery to fit into.

General information

Color

Grey

Finish

Cement

Material

Precast concrete

Shape

Circle

Length

2260 mm

2680 mm

3060 mm

3350 mm

4030 mm

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Manufacturer guidance

Outside diameter.

Width

2260 mm

2680 mm

3060 mm

3350 mm

4030 mm

Show more

Manufacturer guidance

Outside diameter.

Height

500 mm

750 mm

1000 mm

Warranty description

120 year

Uniclass

Pr_65_52_01_21 Concrete manhole chamber sectionsPrimary

CAWS

R12/407 Manholes and inspection chambers – concrete

R12/62 Manholes and inspection chambers – concrete

R12/755 Jointing concrete manhole chamber sections

R12/433 Manhole channels and branches – conventional

Specification data - Concrete manhole chamber sections

Standards

To BS EN 1917 and BS 5911-3.

Certification

BSI Certified: ISO 9001; ISO 14001.

Dimensions

-

Clear internal dimension

2000+ mm.

Section thickness

130 mm.

Manufacturer guidance

Wall thickness.

Integral accessories

Not required.

Caisson Cover Slab: DN 2370 mm.

Caisson Cover Slab: DN 2700 mm.

Caisson Cover Slab: DN 3060 mm.

Caisson Cover Slab: DN 3350 mm.

Caisson Cover Slab: DN 3960 mm.

Caisson Cover Slab: DN 4500 mm.

OutsideDiameter

2260 mm.

EffectiveDepth

500 mm.

OverallDepth

500 mm.

Weight

1065 kg.

Jointing

3.

Manufacturer guidance

Jointing plates.

Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Material

Precast concrete

Case studies

Sewage Pumping Station Water Management

Sewage Pumping Station Water Management

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