摘要: |
The PIANC publication “Approach Channels, A Guide for Design” provides a methodology for the design of harbour channels and turning basins. The approach consists of a two stage process of Concept Design, which is essentially a desk study based on known ship and environmental data, followed by Detailed Design providing a rigorous approach to further refine the dimensions prepared under the Concept Design Process. Ship simulation plays an important part in the Detailed Design process. Many of the Australian ports which involve dredged entrance or departure channels have experienced ship size creep over recent years such that the PIANC Concept Design procedure will usually result in non-compliance of channel width and in particular curve radius. This pressure resulting from the increase in ship size has resulted in the need for port authorities to proceed to the next phase of design, including ship simulation to resolve critical channel dimensions. On many occasions it is necessary to have tugs either on standby or in operation to permit safe passage of the ship. The presence of tugs is to ensure that ships do not have to use maximum rudder and engine orders to allow a successful passage around a bend. This paper presents a new technology ship simulation system (SimFlex) that has been used in Australia, along with the assistance of the local pilots, to resolve some of these issues in accordance with the recommendations of PIANC in relation to the Detailed Design process. The paper contains two case studies with details on the advantages gained by taking the simulator to the local port, rather then transporting pilots to the simulator. This change in ship simulation operating environment brings a number of important advantages including exposure of more pilots as well as a number of other stakeholders, to the simulation series, who would otherwise not be able to travel to a full bridge simulator to participate in the simulation program. This provides an environment within which all stakeholders can participate in the decision making process thereby providing outcome ownership to all those involved |