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Expansion Plans for the port of Durban： What Are the Issues for the City of Durban？

Journal of Shipping and Ocean Engineering 2011年第1期1卷 30-45页

作者： A.A. Mather e Thekwini Municipality Durban 4000 South Africa Centre for Environmental Coastal and Hydrological Engineering School of Civil Engineering University of KwaZulu-NatalDurban 4000 South Africa

The port of Durban is one of the largest ports in the Southern Hemisphere and is the main port for the Southern African region. However, the port is reaching its capacity limit and it is apparent that for South Africa＇s economic growth this port needs to expand. In order to expand the port needs to not only expand its waterside infrastructure but it would need to provide new logistics corridors though the city of Durban. The city of Durban has completely surrounded the port making expansion options difficult and intertwined with the planning of the city. This paper examines the various options and timelines for port expansion as well as the issues from the city perspective. Areas of possible conflict in this process revolve around traffic capacity and related road/rail infrastructure, environmental issues, social and economic impacts.

关键词： port planning city planning containerization Durban shipbuilding.

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Preliminary Assessment of Operational Downtime of Sea ports and Berthing Facilities through Numerical Modelling

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Journal of Shipping and Ocean Engineering 2014年第5期4卷 117-128页

作者： Md Akhtaruzzaman Sarker Giang Vu Luong Alec John Sleigh Rivers Deltas & Coasts Business Line Royal Haskoning DHV Peterborough PE3 8DW United Kingdom

Downtime due to adverse wave conditions for vessels at berth is an important commercial aspect in the planning and development of a sea port or a berthing terminal. This paper describes a practical technique for preliminary assessment of operational downtime at a proposed bulk terminal. Time-series wind and wave data at an offshore location was purchased. Numerical modelling was then carried out using the MIKE21 SW （spectral wave） model developed by DHI （Deutsches Hydrographisches Institut） to transform these offshore waves into inshore in order to derive wave conditions at the berth. Both wind-waves and swell-waves were considered. Waves affecting the head and beam of a vessel were considered separately for a wide range of vessel sizes with DT （displacement tonnage） ranging from 5,000 tons to 〉 200,000 tons. The limiting wave height H5% was used. Operational downtime was also calculated using significant wave height, Hs as a criterion with limits ofHs = 1.0 m for beam seas and Hs = 1.5 m for head seas. The methodology and lessons learnt from the study can be applied for the development of any sea port worldwide.

关键词： Numerical modelling wave propagation wave transformation downtime port planning bulk terminal.

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