Manufacturer of Prefabricated Vertical Drain（PVD), Sunzo Foundation

Manufacturer of prefabricated vertical drain（PVD）

Prefabricated vertical drains, also known as wick drains, are one of the most commonly used techniques to make soft compressible subsoil with a low bearing capacity constructible. Vertical drainage together with a surcharge reduces the time of settlement substantially. Area’s that are sensitive to settlement are characterized by a high water content as well as an open structure between the grains. When loads are placed, excess pore pressures are formed because of the low permeability of the soil layers. Without taking measures, this excess pore water will flow out very slowly. This leads to a long period with high settlements and possible stability problems when loads are being placed too soon. Sunzo’s vertical  drainage system consists of a synthetic prefabricated vertical drains that are being installed vertically from the surface level up to the bottom of the weak layer. This creates vertical drainage paths in the subsoil that shorten the drainage path of the excess pore water considerably. Vertical drainage results in a reduction of the consolidation process from tens of years to half a year or even less. It will also increase the stability which makes it possible to place embankments faster.

We are able to manufacture different prefabricated vertical drain according to the specifications of the clients, as well as measurable prefabricated drains (with copper wire or scale).Welcome your questions and inquiries!

Manufacturer of prefabricated vertical drain（PVD）