Civil Engineering

ColbondDrain® CX1000

High-quality prefabricated vertical drain (PVD)

OVERVIEW

Installed with a purpose-built installation rig mounted on a hydraulic excavator.

Speedy consolidation of marshy soils

Speedy consolidation of marshy soils

A highly effective solution for a major engineering challenge. Can achieve 90% pre-construction consolidation of soils and soft clays in marshland areas within months rather than years, improving safety and drastically reducing cost.

Functions
  • Vertical drainage.
  • Forms an upward path for excess pore-water to drain off to the surface, resulting in a stable subgrade for construction.
  • Developed in partnership with leading European consultants, laboratories and geosynthetics specialists.
  • Unique combination of patented core structure and nonwoven filter bonded to core increases water flow capacity.
  • Core: hydraulic channel profile ensures laminar flow for optimum performance.
  • Nonwoven filter layers deliver optimum filtration, permeability and strength.
  • Thermal bonding ensures that the filter is kept taut across the flow channels.

Comprehensive range of applications

  • Use in depths up to 100m.
  • High tensile strength allows use on all installation rig types.
  • Suitable for all soil types.
  • Recycled raw material components results in a more sustainable project
Comprehensive range of applications
EASY TO HANDLE

EASY TO HANDLE

  • Filter cannot tear or become separated from the core.
  • Roll length up to 330m reduces number of connections.
  • Efficient packaging allows high transport loads and reduced storage time on site.
Applications enabled by this product

Embankments On Weak Soils And Areas Prone To Subsidence

Accelerated consolidation of soft soils by using prefabricated vertical drains (PVD), and using Geosynthetic Encased Columns to ensure the columns transfer loads vertically.

Soil Consolidation & Land Reclamation

On coastal reclamation works, the finished ground profile may not settle evenly. Releasing the groundwater and reducing the pore water pressure quickly allows you to complete consolidation settlement while reclamation works and infrastructure installation are underway.

Wind Farms

The local soil in areas of wind farm construction is often weak and lacking bearing capacity for the heavy equipment needed for construction and maintenance. Use our geotextiles and geogrids to create a safe and economical construction site.

Technical details
  • Colbonddrain® is a prefabricated vertical drain which should be installed with a purpose built installation rig mounted on a hydraulic excavator.
  • If the compressible clay is very deep or contains gravel bands, special techniques such as vibrators and heavy mandrels may be required.
  • Colbonddrain® is 10cm wide with a robust polymer core, covered on both sides with a strong and permeable filter fabric.
  • Rolls come in lengths up to 330 linear metres.
  • The outer filter fabric of Colbonddrain is bonded to the core structure over its entire surface to form a homogenous geocomposite.

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