Coastal Structures and Solutions to Coastal Disasters Joint Conference 2015
Stability Tests and Damage on Breakwaters Armoured with Tetrapods
Publication: Coastal Structures and Solutions to Coastal Disasters 2015: Resilient Coastal Communities
ABSTRACT
The objective of this paper is to evaluate damage in breakwaters armoured with tetrapods using physical modelling data. The hydraulic laboratory tests reproduced the complex geometry of a rubble mound breakwater armoured with tetrapod concrete blocks and subjected to breaking wave action. The test programme included both flume (2-dimentional; 2D) tests and wave basin (3-dimentional; 3D) tests using several combinations of input parameters, such as wave heights, wave periods, and wave directions, water level elevations, and tetrapod sizes. During physical model tests, the hydraulic stability of the tetrapod-armoured breakwater was evaluated, and the damage was measured for every design storm segment using the ‘flickering’ technique. The results obtained from the laboratory tests are in general similar to those predicted using published literature regarding the stability coefficient (KD) of Hudson’s formula.
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ACKNOWLEDGEMENTS
The authors thank Carioca Christiani Nielsen Engineering (Rio de Janeiro, Brazil) for financial support and the Institute of Environmental Hydraulics (IH Cantabria) of the University of Cantabria (Santander, Spain) for conducting the physical model tests.
REFERENCES
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Silva, Renan F. and Sayao, Otavio J. (2015). Evaluation of Damage in Tetrapod Breakwaters (in Portuguese). Revista de Engenharia e Tecnologia, Special Ed., Ocean Engineering, ISSN 2176-7270, Vol. 7, No. 2 (2015), Pub., Open Journal System (OJS 2.2.3.0), pp. 130-143.
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Information & Authors
Information
Published In
Coastal Structures and Solutions to Coastal Disasters 2015: Resilient Coastal Communities
Pages: 925 - 932
Editors: Louise Wallendorf, U.S. Naval Academy and Daniel T. Cox, Ph.D., Oregon State University
ISBN (Online): 978-0-7844-8030-4
Copyright
© 2017 American Society of Civil Engineers.
History
Published online: Jul 11, 2017
Published in print: Jul 11, 2017
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