Civil Engineering

Embankments on weak soils and areas prone to subsidence

Stabilising soft soils

OVERVIEW

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

With stone columns traditionally used to improve bearing capacity and reduce settlements, using Geotextile Encased Columns (GECs) can resist bulging and ensure the columns transfer loads vertically, with the lateral support being provided through the reinforcement.

Prefabricated vertical drains (PVDs) are used to shorten the horizontal drainage path in low permeability soils enabling full consolidation of soil in months.

Colbonddrain prefabricated vertical drains (PVD) can achieve full consolidation of weak soils in months rather than years.

OUR SOLUTION
Colbonddrain prefabricated vertical drains

Colbonddrain prefabricated vertical drains

  • Accelerate soil consolidation.
  • Create shorter drainage pathways for groundwater.
  • Resist tears under load during installation.
  • Outer filter fabrics are bonded to the core structure.

Geotextile encased columns

  • Drain off saturated weak soils.
  • Increase global stability immediately.
  • Get smaller and more even settlements.
  • Prevents mixing of the gravel with weak soil.
Geotextile encased columns
FUNCTIONS
  • Accelerating consolidation.
  • Increasing bearing capacity.
  • Improving embankment stability.
Related Products

ColbondDrain®

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

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EnkaDrain Wide

A 5-metre wide three-dimensional monofilament drainage core for waste containment.

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