Riverbank & Shore Protection.

Tidal fluctuations can cause major damage to both the coastline and off-shore construction projects.

To protect these structures from potential damaging wave action, sea defences are constructed using rock armour, placed on a geotextile filter underlayer.

To resist the installation stresses associated with rock placement, SG Heavyweight Woven and VNW needlepunched nonwoven products, offering high puncture strengths, are specified for use in this sector.

SG grades are also available with integrated loops, if required, to facilitate their placement, joining on site, or for the fixation of ballast or bundled wood fascines to the textile without causing damage to its mechanical or hydraulic properties.

On occasions, Coastal and River Bank Protection projects may use prefabricated concrete block protection systems as their primary source of armour. Here, HF Woven fabrics have been specially developed for use as a filter underlayer to prevent erosion of the subsoil

and to ensure the long term performance of these highly permeable block mattresses.