Generally, the canal, slope erosion are caused by water flow and wind. For the non vegetated slopes, firstly the thin ground particles shift, then grooves, creaks and surface runoffs come into being, which show the erosion of soil. For canal, embankments, the concentrated forces produced by the velocity can lead to the formation of holes, longitudinal and transversal furrows and undercutting at the base. Then the soil may slip down onto the canal, subsequently affect the water flow.

Surface vegetation is absolutely the most environmentally friendly solution, it stabilize the surface, improves the quality of soil and reduce the water and rainfall flow velocity. However, it's far away from total greening. What's more, its vulnerable and easily destroyed. Therefore, the colonisation by vegetation is necessary, but rather difficult.

Our company provides 3D geomat with rectangular openings, which is three dimensional geomat made up of three layers extruded polypropylene grids which are later bi-oriented, and then three layers of geomat are overlapped and sewn together and tied up by means of a black polypropylene yarn. The biodegradable pre-seeded textile could be assembled in the lower part of the geomat. Generally, it is in black or green color so as to keep warm for seedlings' germination inside the textile or form an integral landscape of green.

Rectangular openings shaped 3D geomat forms an effective slope protection in the first beginning and a fast grass covering and strong anchorage of the roots to the soil and the geomat itself.

3DGRS-01: Three layers of rectangular shaped meshes are combined into one 3D geomat.

3DGRS-02: Green rectangular shaped 3D geomat to accommodate the surrounding environment.

3DGRS-03: The biodegradable textile could be prefilled seedlings and it will degrade when the plantings have grown.

3DGRS-04: Laying the rectangular shaped 3D geomat onto the surface of the soil slope and fix it by lacing wire or rings.

Specification of two types of rectangular shaped 3D geomat:

• Type 1:
  • Material: polypropylene.
  • Structure: three dimensional geomat composed by 3 layers.
  • Openings shape: rectangular apertures.
  • Colors: black or green.
  • Aperture size: machine direction 7.0 mm × transverse direction 9.0 mm.
  • Thickness: 8.0 mm.
  • Mass per unit area: 180 g/m².
  • Roll width: 2.20 m.
  • Roll length: 50.0 m.
  • Roll diameter: 0.57 m.
  • Roll volume: 0.75 m³.
  • Gross roll weight: 23.7 kg.
  • Peak tensile strength: 3.8 kN/m for machine direction, 13.0 kN/m for transverse direction.
  • Yield point elongation: 23% for both machine and transverse directions.
• Type 2:
  • Material: polypropylene.
  • Structure: three dimensional geomat composed by 3 layers.
  • Openings shape: rectangular apertures.
  • Colors: black or green.
  • Carbon black content: 1.0%.
  • Aperture size (longtitudinal to the roll, from the machine direction): 12.0 mm.
  • Aperture size ( across the roll, transverse direction): 16.0 mm.
  • Thickness: 17.0 mm.
  • Porosity: 95 %.
  • Mass per unit area: 320 g/m².
  • Roll width: 2.20 m.
  • Roll length: 30.0 m.
  • Roll diameter: 0.78 m.
  • Roll volume: 1.40 m³.
  • Gross roll weight: 24.0 kg.
  • Peak tensile strength: 10.0 kN/m for machine direction, 15.0 kN/m for transverse direction.
  • Yield point elongation: 24% for both machine and transverse directions.

Application:

This product is especially designed for slope protection and vegetation settlement on slope, canals and banks that are continues exposed to erosion and flooding from rainfall.