FROND MATS – A SOFT SOLUTION TO SCOUR

SSCS FROND MATS

MIMICKING NATURE

SSCS FROND MATS

A ROBUSTLY FIELD PROVEN PERMANENT SOLUTION TO

SCOUR

SSCS FROND MATS

REMOVING THE CAUSE

PERMANENTLY

SINTEF Report – Viscous

Drag Fronds – Flume Tank Trials (for ICI Linear Composites ~ SSCS) @ River & Harbour Laboratory, Norwegian Institute of Technology, Trondheim.

Phased Flume Trials

Initial sediment deposition at the foot of the fronds

Further sediment deposition over the Frond Mat

Reinforced Sediment sand bank near full development with a few short

length of Frond exposed

Diver inspecting the fully developed sediment sand bank with short

random Fronds exposed

CREATION OF

SANDBANK

UK

SOUTHERN NORTH SEA

SSCS FROND MATS

REMOVING THE CAUSE

PERMANENTLY

SSCS FROND MATS

IN-HOUSE DESIGN

SSCS FROND MATS

IN-HOUSE MANUFACTURE

FROND MAT TYPES

Frond Pin and Anchor System

Gravity Anchor System

SSCS ANCHORS

SUBSEA ANCHOR

SSCS EQUIPMENT

HIRE

UNDERWATER INSTALLATION EQUIPMENT

SSCS GRAVITY

ANCHORS EASE OF

INSTALLATION

SSCS ‘GRAVITY

ANCHORS’

IN-HOUSE DESIGN AND

MANUFACTURE

SSCS FROND MATS

FAST INSTALLATION

SSCS FROND MATS

ENVIRONMENTALLY FRIENDLY

SSCS FROND MATS

GLOBAL EXPERIENCE

Patricia-Baleen

Pipeline, Patricia

OMV AUSTRALIA

JAN-FEB 2003

ARKLOW BANK WINDFARM TURBINE PILE FOUNDATION

& CABLES

SCOUR RECTIFICATION

GE ENERGY

Pipeline Freespan Rectification and

Stablisation 2006 (ongoing)

Shell Brunei

Recent Scour Rectification

and Prevention

Projects

2004 Marathon Oil, Concrete Gravity Based MOPU, Gabon

2006 (ongoing) Shell Brunei, Pipeline Freespan Rectification and Stabilisation

2006 to 2008 Norfolk Broads Riverbed and Bank Erosion Rectification and Reinstatement

2005/6/10 ODE & E.ON Scroby Sands

2012 to 2015 SASMAP Project, EU

2014 GMS Endeavour Anglia A – North Sea

2005 Bass River, USA – National Grid Reinstatement and Protection of polluted riverbed

2006/7 (ongoing) SINOPEC China, Bohai Bay

2009 to 2011 BP Vietnam, Lan Tay Subsea Remedials

2011 (2004) Arklow Bank Offshore Wind Farm

2013 (ongoing) Pertamina, Indonesia Offshore Platform Leg Scour Protection and Remediation

Lower installation cost compared to that of other currently used systems

‘One-off’ cost only – providing a permanent engineering solution to scour that does not require follow up maintenance or re-application associated with other ‘hard’ methods of protection

Scour is stopped immediately upon installation

Progressive build-up of a permanent fibre-reinforced sandbank

Environmentally acceptable: the sandbank contours follow and blend into the riverbed or seabed, and do not negatively affect marine life, the growth of vegetation, or fishing

Effective in deep or shallow water

Impact damage protection by cushioning structures with energy absorbing sand

Load bearing solution – natural agitation of fronds creates a high degree of sand compaction

Field proven in various locations globally

Key Benefits

Pilarczyk (2000) Geosynthetics and

Geosystems in Hydraulic and Coastal

Engineering

QUESTIONS

MORE INFORMATION AVAILABLE AT www.sscsystems.com/scour