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Alternative Manoeuvres to Reduce Ship Scour

Published online by Cambridge University Press:  03 August 2020

Marcella Castells-Sanabra
Affiliation:
(Department of Engineering and Nautical Sciences, UPC-Barcelona Tech, Barcelona, Spain)
Anna Mujal-Colilles
Affiliation:
(Department of Engineering and Nautical Sciences, UPC-Barcelona Tech, Barcelona, Spain)
Toni LLull
Affiliation:
(Department of Civil and Environmental Engineering, UPC-Barcelona Tech, Barcelona, Spain)
Jordi Moncunill
Affiliation:
(Department of Engineering and Nautical Sciences, UPC-Barcelona Tech, Barcelona, Spain)
F.X. Martínez de Osés
Affiliation:
(Department of Engineering and Nautical Sciences, UPC-Barcelona Tech, Barcelona, Spain)
Xavi Gironella
Affiliation:
(Department of Civil and Environmental Engineering, UPC-Barcelona Tech, Barcelona, Spain)
Corresponding
E-mail address:

Abstract

Scouring and sedimentation effects on the seabed induced by ship propellers during ship manoeuvring near harbour structures affect both structure stability and ship manoeuvring capabilities. This contribution proposes solutions at an operational level using the automatic identification system (AIS) and a bridge simulator. Two new alternative manoeuvres were designed and tested on a bridge simulator to obtain expected maximum scour depth and the results were compared with that of real manoeuvres (i) using mooring lines, and (ii) with tug assistance. A total of 42 test scenarios combining several manoeuvres and meteorological conditions were reproduced. Results confirmed a clear reduction in erosion depth with the alternative manoeuvres, with total reduction when using the tugboat. The presented methodology can be very useful to port authorities to prevent the effects of ship erosion on harbour infrastructures.

Type
Research Article
Copyright
Copyright © The Royal Institute of Navigation 2020

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