Erosion Control

Erosion occurs when the forces exerted by water of wind dislodge and transport away soil particles. 

Embankments

 

While seeding and vegetation provide a cost effective solution on gentle slopes, the InfraWeb cellular confinement system provides an economical solution for severe erosion conditions when compared to a combination of geotextile and stone layers, gabions and the like.

 

The cells of the InfraWeb system can be filled with soil, sand, aggregate, concrete etc. The infill is protected by the cell thus preventing its removal by erosion forces. Each cell funcitons as a small dam allowing water or wind to pass over the top without removal of the infill. If seeded soil is used as the filling material, mowing can be carried out without any interference from the cell walls. If concrete is used, the system will protect the underlying soil from either wind or water erosion.

 

The amount of erosion depends on the following factors:

 

  • Strenth of wind/ water
  • Dimensions of the slope (heights, length and steepness)
  • Type of soil

 

Slope Protection

When external weight is required for slope stability, filled InfraWeb will provide it. For example, InfraWeb when applied to stream beds and road embankments will prevent deterioration by water erosion.

 

Channel & Stream Protection

 

InfraWeb can be used to prevent erosion of channels and stream beds. The units are laid on both embankments as well as the bottom of the channel/ stream. Infilling can be either with local material or concrete. This should be determined by the maximum flow rate of the water. Where strong currents are to be expected, concrete should be used to prevent erosion. The utilization of cellular confinement allows for reduced quantities of concrete, especially in the case of steep embankments, due to the fact that the concrete is contained in the cells and down pouring at the embankment will not occur.

 

Water Reservoirs

 

InfraWeb can be used as load supporter on the bottom and sides of water/ sewage reservoirs. In this manner savings in the construction can be achieved. Furthermore, contributing to even more savings without compromising the quality of the project.

  • Infraweb Tree Root Protection

    Vehicular traffic over unprotected areas within the tree root protection zones of existing trees causes compaction of sub soils leading to reduced voids within the soil structure. This reduces air and water transfer to the roots themselves which can ultimately lead to the root 

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  • Ground Stabilisation

    InfraWeb cellular confinement systems serve to spread loads that are imposed upon the system. Furthermore, in many instances it is possible to use locally avaliable, inexpensive aggregates in a multitude of stabilisation projects such as: roads, access lanes, 

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  • Retaining Walls

    In order to stabilise very steep slopes, retaining walls are constructed. Traditional retaining wall structures are constructed of concrete blocks or wooden facias combined with one or more layers of reinforcement (geogrids, metal 

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InfraGreen Cellular Confinement Brochure


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