Low Crested Reef Breakwaters - Theory Illustrated by Arabian Gulf Projects

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Title Low Crested Reef Breakwaters - Theory Illustrated by Arabian Gulf Projects
Author Jackson, L. A.; Corbett, B.; Salyer, A.; Mocke, G.; Smit, F.; Strauss, Darrell; Tomlinson, Rodger Benson
Publication Title Proceedings of the 2nd International Conference on Coastal Zone Engineering and Management (Arabian Coast 2010) 1-3 November, 2010. Muscat, Oman, UAE
Editor -
Year Published 2010
Place of publication Muscat, Oman
Publisher Sultan Qaboos University Press
Abstract Low crested reef type breakwaters are becoming increasingly popular for coastal protection. As they are entirely offshore, there are no structures on the beach to impact the amenity and safety of the beach itself. They may also offer attractive marine habitat and recreational amenity benefits. Their effectiveness increases with wave height. Fully submerged and semi-submerged low crested structures such as “reef” type breakwaters behave differently from conventional fully emerged structures and require appropriate design methods. This has restricted the use of low crested structures by designers without the design expertise in this field. Design parameters include crest level, length, width and distance offshore. Typical emerged breakwaters have a wave transmission coefficient, however, reef breakwaters reduce the wave height [1> Kt >0] rather than stopping all of the wave energy in the lee of the breakwater. To add to the complexity, Kt for a specific structure varies with both wave and tide conditions. However, design formulae have been developed from physical modelling and as well as monitoring the behaviour of artificial reef breakwaters and investigations of naturally occurring nearshore reefs found along coastlines and around atolls worldwide Submerged and semi-submerged “reef” breakwaters have proven to be a simple and robust coastal management tool for Arabian Gulf wave and tide conditions. Construction of low crested structures such as reef breakwaters has been assisted by the development of durable mega geo-containers as they are stable even with the high wave forces on the crest. Two coastal protection reef breakwater designs for application in the Arabian Gulf are reviewed.
Peer Reviewed No
Published Yes
Publisher URI http://www.arabiancoast2010.org/
ISBN 2219-1283
Conference name 2nd International Conference on Coastal Zone Engineering and Management (Arabian Coast 2010)
Location Muscat, Oman, UAE
Date From 2010-11-01
Date To 2010-11-03
URI http://hdl.handle.net/10072/38314
Date Accessioned 2011-02-22
Date Available 2011-04-21T07:13:19Z
Language en_AU
Research Centre Griffith Centre for Coastal Management
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Physical Geography and Environmental Geoscience; Physical Oceanography
Publication Type Conference Publications (Full Written Paper - Non-Refereed)
Publication Type Code e2

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