Benefits Of The Frond System
BENEFITS OF THE SSCS FROND SCOUR PROTECTION SYSTEM
Eliminates scour immediately upon installation.
Once activated the SSCS Frond Systems immediately create viscous drag and reduce current velocity and turbulence at the installation site eliminating both the conditions which create scour and the mass transportation of sediment.
Provides a permanent, maintenance free solution to scour.
The Frond Systems offer an immediate and effective “soft” solution, in that they are environmentally approved and do not present the hard, hydro-dynamically unstable, edge presented by other methods and therefore do not create edge scour.
Other methods such as rock dumping and/or the deployment of sand/gravel bags alone and concrete only mattresses only, increase the profile of the structure, pipeline or cable and create edge scour which results in settlement, sinkage, costly maintenance, and secondary scour.
Rock has been found to sink to the first impermeable layer in the seabed; that sand and grout bags alone have been washed away; and that concrete only mattresses have been both washed away and left suspended on, or at, the installation they were intended to protect.
Provides dropped object and impact protection.
Impact loads are dissipated throughout the progressively reinforced energy absorbing sediment bank which forms in the fronds and which, compacted by tidal flow during its formation, is more dense than the surrounding seabed.
Can be installed with relative ease and speed.
The installation time for each Frond Mat is approx: 20 minutes from deployment at the surface to completion of installation on the seabed.
The Frond Systems have been installed by all major diving installation contractors. Therefore diver installation experience and competence is well established.
Have low installed costs.
Installation of the SSCS Frond Mats can be carried out from a relatively inexpensive support vessel ,while the Fronded Concrete Mattresses can be installed either with diver assistance or with the use of a competent work class ROV. The costs of installation of both Systems are considerably lower than those associated with other methods.
Are environmentally approved.
The sediment sandbank contours flow and blend into the seabed in a hydro-dynamically acceptable shape and can create a Natural Habitat for Marine Life.