Abstract: Ship owners have higher requirements on loadindexes with the increasing competition of the feeder line container ships. The further exploration of the loading potential will face the great challenges without variation of the principal dimensions, the general arrangement and structural design of the original ship. The method of adopting the dual load lines has been proposed for the 2 300 TEU container ship. It carries out the feasibility analysis from the aspects of the deadweight, freeboard, line of sight, damage stability and container average index. The results show that the addition of one load line greatly improves the loading capacity of the 2 300 TEU container ship, which has the significant economic efficiency with the consistent high praise from the ship owners.

Key words: container ship, dual load lines, deadweight, damage stability

摘要： 随着支线型集装箱船竞争越来越激烈,船东对装载指标要求越来越高。在不改变原船主尺度、总布置和结构设计等的情况下,进一步挖掘装载潜能将面临极大的挑战。文章提出采用双载重线方案,并以2 300 TEU集装箱为例,从载重量、干舷、视线、破舱稳性和均箱指标等方面进行可行性分析。结果表明：增加1条载重线,能极大地提高该船装载性能,具有显著经济效率,并得到船东一致好评。

关键词: 集装箱船, 双载重线, 载重量, 破舱稳性