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J. Mar. Sci. Eng. 2016, 4(1), 3; doi:10.3390/jmse4010003

Improvement of Mooring Configurations in Geraldton Harbour

1
W.F. Baird & Associates Coastal Engineers Ltd., Ottawa, ON, K1V 0Y3, Canada
2
Baird Australia Pty. Ltd., Level 14, 309 Kent St., Sydney, NSW, 2000, Australia
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Charitha Pattiaratchi
Received: 5 October 2015 / Revised: 1 December 2015 / Accepted: 15 December 2015 / Published: 24 December 2015
(This article belongs to the Special Issue Infra-Gravity Waves and Vessel Response)
View Full-Text   |   Download PDF [2868 KB, uploaded 24 December 2015]   |  

Abstract

Ports exposed to high energy long wave conditions can experience significantly reduced berth operability. Geraldton is perhaps one of the best known examples. Recent studies to mitigate the problems have concentrated on the reduction of the long waves by extending the breakwater. However, this is quite costly. Various countermeasures related to the mooring configuration are defined and analysed in this paper. The analysed alternatives are use of shore-based mooring lines, installation of softer fenders, a combination of these two, and deployment of Cavotec MoorMaster™ units. These alternatives were compared with the existing mooring configuration and with the option to extend the breakwater. The best improvement (50% increase of threshold long wave height inside the harbour) is reached by installing a combination of pneumatic fenders and constant tension winches set to 30 t, or nylon breast lines on a brake winch with a pretension of 25 t. In this way, the vessel is pulled into the fenders and fender friction prevents excessive surging of the ship along the berth. View Full-Text
Keywords: long waves; moored ships; port engineering long waves; moored ships; port engineering
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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van der Molen, W.; Scott, D.; Taylor, D.; Elliott, T. Improvement of Mooring Configurations in Geraldton Harbour. J. Mar. Sci. Eng. 2016, 4, 3.

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