Overview
Soil Erosion Protection: Typar offers a combination of properties that make it ideally suited for permanent erosion control applications:
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- Permittivity allows drainage
- Non-woven, thermally bonded fiber structure minimizes the piping and erosion of subgrade soils
- Tough, strong and durable
- Easy installation
Soil Erosion Protection
Erosion control is defined as: “The use of a geotextile or a geotextile-related product to prevent soil or other particle movements at the surface of, for example, a slope”23.
The erosion process is part of the geological cycle, a natural phenomenon, wherein water and wind are particularly aggressive factors causing soil erosion. A geotextile is used as part of an erosion-control system to protect the soil (marine embankment
slopes, riverbanks, bed protection) from this influence. Depending on the water’s force (flow rate, wave action, tidal surges) and the characteristics of the soil, the effects can be devastating (e.g. landslides).
The main function of the geotextile in an erosion-control system is the retention of the base material without the generation of unacceptable excess pore-water pressure. The geotextile replaces a conventional well-graded filter between the soil to be retained
and gabions, rip-rap or concrete-slab revetments, which protect the filter geotextile. Its particular opening size retains the soil and so avoids erosion of the slope. Furthermore, the geotextile must satisfy strength requirements.