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Prefabricated Drains or Vick Drains

Prefabricated Drains or Vick Drains.

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Prefabricated Drains or Vick Drains

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  1. Prefabricated Drainsor Vick Drains

  2. In general, prefabricated band drains consist of a central core, whose function is primarily to act as a free drainage channel, and a non-woven filter jacket, which prevents the soil surrounding the drain from entering the central core but allows water to flow in.

  3. The drain which is placed inside the mandrel with tip anchor

  4. The details of band drain and tip anchor.

  5. Geocomposite Wick Drains • also called prefabricated vertical drains (PVDs) • used for rapid consolidation of saturated fine grained soils • consists of a drainage core with a GT filter/separator wrapped completely around it • typically 100 mm wide, by 2 to 10 mm thick, by 100 m long (in roll or coil form) (Driving WickDrains) (Ready for Surcharge Fill)

  6. How are vertical wick drains designed? • How are vertical wick drains designed? • The vertical wick drains are usually placed in a triangular configuration of 3 to 12 feet (1 to 4 meters) - depending on the desired consolidation time. As a result of this method of accelerating the consolidation process, uneven post-construction settlements can be virtually eliminated.  

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