Abstract:Domestic large-scale LNG terminal designs typically feature ship-type tank capacities of 80,000 m3 or more.To satisfy the loading requirements,it is common to construct small loading berths in addition to large unloading berths,or to retrofit existing large unloading berths to accommodate the loading needs.In response to this situation,a design concept based on all types of ships is proposed.The terminal can meet the berthing and operation requirements of LNG ships of all grades,avoid retrofitting in the later stage,and at the same time,improve the utilization rate of shore resources.Through analysis and research on aspects such as the types of berthed vessels,plan layout,and hydraulic structures,a terminal layout mode that conforms to this concept is proposed.The working platform adopts a beam-slab structure,with two auxiliary berthing dolphins set underneath.Partial lowering of the berthing dolphins is also carried out to add new mooring platforms,thus meeting the requirements for matching various types of vessels with the shore.The hydraulic structure innovatively adopts a form where the working platform is separated from the auxiliary ship berthing piers,and auxiliary berthing laser sensors and installation platforms are set on the side of the auxiliary ship berthing piers,solving the berthing problem of small LNG ships.Physical model tests are used to conduct a special argument on the safety of ship mooring,and the operation standards for all types of ships are clarified.
