Skip to content

TerraDrain – Pre-fabricated vertical drains (PVD)

TerraDrain can be of significant assistance in increasing the speed of consolidation of very soft soils.

This ultimately improves the shear strength of the soil so that an engineered structure may be constructed quickly.

TerraDrain is a specially designed polypropylene core extruded into a unique configuration to transmit maximum water flow on both sides of the core.

The core is fully wrapped in a nonwoven geotextile filter that is ultrasonically welded to maintain effective filtration. The main design advantage of this core structure is the resistance to pinching off flow when distorted under the effects of ground consolidation.

wick-drain-product

Featured Project

Waterview – Auckland, New Zealand

Frequently Asked Questions

Benefits & Features

  • Fully wrapped core preventing delamination onsite
  • Can be spliced onsite
  • Maintains high flow rates when kinked
  • Reduces settlement time
  • Long 300m continuous rolls

Specifications

Code
Grade
Pack Size
76297
TerraDrain
100mm x 300m
76453
Anchor Plates 190mm x 90mm
200 per box

Downloads

  • Technical Information

Related Products

geotextile-product

DuraForce® AS Geotextile

DuraForce AS series geotextiles are manufactured and tested to exact quality standards and rated according to the NZTA F/7 specification for geotextiles.

duragrid-x-product

DuraGrid X

DuraGrid X is a range of polypropylene biaxial geogrids for use in base course reinforcement and sub-grade stabilisation applications such as road pavements, reinforced foundations and working platforms on soft ground.