Erosion control
The face of a slope and its geometry can be critical to long-term performance, and any change to its angle or shape may even lead to failure. Surface erosion is usually a progressive mode of failure with minor pitting of an unprotected soil surface progressing to the formation of runnels which concentrate run-off flow and lead to deeper channels forming an eventual loss of stability.
This failure can lead to delays whilst clearance and repairs are undertaken and could also lead to failure of structures on top of the slope.
The natural defence against either water or wind erosion is the root matrix of grasses, plants and trees which serve to hold the soil together. This is only possible after a period of growth time and the slope face will remain unprotected until then.
Our range of Enkamat erosion control products protect the slope immediately after construction by creating an artificial root matrix on the face of the slope, by protecting the surface from inundation and by locally encapsulating the soil. The open nature of Enkamat with over 90% voids and high filament density ensures encapsulation of the topsoil. It permits hand seeding, planting or hydroseeding to establish vegetation without impeding root growth or passage of moisture.
Enka-Net woven materials protect soil surfaces from direct rainfall and prevent soil from washing out of the slope face prior to vegetation taking hold.
Armater is an open three dimensional matrix of nonwoven material which, when pegged to a slope surface, physically encapsulates individual cells of topsoil or granular material at the slope surface, intercepting and preventing the continuation of any runnels and permitting the flow of surface water without allowing the soil to be transported.
The three dimensional Enkamat erosion prevention mats provide immediate protection, allow for fast growth of vegetation and offer a long-term strong foothold for vegetation root systems. Protection is permanent and maintenance is not required. Enkamat types are available for protection of dry slopes as well as for water banks.
Enkamat is secured in trenches at the slope’s toe and shoulder, and is pinned at regular intervals to maintain contact with the underlying soil.
Functions:
- Permanent surface stabilization
- Support of vegetation
- Prevention of splash, runnel and gully erosion
Relevant products:
- Enkamat®
- Enkamat® J
- Enka®-Net
- Armater®
