Sand Bypass

SAND BYPASSING/RECYCLING

SSM utilise the patented Sandshifter to carry out sands bypassing around ocean entrances and harbours. The Sandshifter is also used for beach nourishment and protection through recycling littoral drift sand.

The Sandshifter
 

The Submarine Sand Shifter is based on a fluidising principle which allows sand to be recovered from below the sea floor over a horizontal distance of 20 to 40 metres.

In a typical fixed installation, the Sandshifter unit is buried within the sand accumulations on the up drift side of the entrance or harbour. The Sandshifter creates a sand trap that captures littoral drift sand before it can infill the navigation channel.

The captured sand is discharged to an onshore pumping station where the sand/water mixture is pumped through a transfer pipeline to discharge on the down drift side of the entrance or harbour.

The Sand Shifter units are self burying and do not require an expensive supporting pier. The buried units are protected from storms and do not obstruct navigation, public access or interrupt the aesthetic lines of the beach.

Please view the links below for more information.

• Noosa Beach Sand Recycling
• Woorim Beach Sand Recycling

Publications:

Nankervis L (2005) Beach Nourishment With The Submarine Sandshifter , 2005 Coasts and Ports Conference, Adelaide, Australia 21st - 24th September 2005

Martin B, Lugton G and Nankervis L (2001) Sand Management at the Estuarine Port of Lakes Entrance, Victoria. 2001 Coast & Ports Conference Gold Coast Queensland

Cowper N.T. and Nankervis L (1997) Innovative Sand Shifter Technology for Maintaining Clear Ocean Entrances Year Round. Fixed Sands Bypassing at the Port of Portland, Victoria, 13th Australasian Coastal and Ocean Engineering Conference and 6th Australasian Port and Harbour Conference, 7-11 Sept 1997, Christchurch NZ.