开敞岛礁海域环境大型LNG码头规划布置关键问题  

Key issues in planning and layout of large liquefied natural gas terminals in open island and reef waters

作　　者：薛天寒 董敏[1] 沈忱 李勤荣[1] 查雅平[1] 张民辉[1] XUE Tianhan;DONG Min;SHEN Chen;LI Qinrong;ZHA Yaping;ZHANG Minhui(Transport Planning and Research Institute,Ministry of Transport,Beijing 100028,China)

机构地区：[1]交通运输部规划研究院,北京100028

出　　处：《水运工程》2023年第7期42-47,共6页Port & Waterway Engineering

基　　金：国家重点研发计划项目(2020YFE0201200)。

摘　　要：舟山群岛海域规划有多个LNG重要港址,对于保障长三角天然气供应具有关键作用。LNG码头具有自身建设要求高和对外排他性强的特性,在舟山群岛海域为代表的开敞岛礁海域建设具有较大技术难度。以舟山六横和上海洋山LNG码头为例,系统分析开敞岛礁海域对LNG码头规划布置的影响,分析码头和航道布置关键问题,论证多个大型LNG泊位联合布置的安全间距,研究LNG船舶通航安全和通航效率影响,提出LNG码头规划布置方案。结果表明,开敞环境下布置多个大型LNG泊位时,与掩护条件较好时相比应适当增加安全间距,注意横风、横流以及斜顶流的影响,确保船舶通航安全,要控制LNG合理运输规模,采取通航优化措施,提升区域船舶通航效率。There are many important liquefied natural gas(LNG)ports planned in the waters of Zhoushan Islands,which play a key role in ensuring the natural gas supply in the Yangtze River Delta.The LNG terminals have the characteristics of high self-construction requirements and strong external exclusivity,and it is technically difficult to construct such terminals in the open island and reef waters represented by the Zhoushan Islands.Taking Zhoushan Liuheng and Yangshan LNG terminals as examples,this paper systematically analyzes the influence of open island and reef waters on the planning and layout of LNG terminals,discusses key issues in terminal and channel layout,and demonstrates the safety spacing of joint layout of multiple large LNG berths.Considering the influence of ship navigation safety and navigation efficiency in LNG terminals,this paper proposes the LNG terminal planning and layout scheme.The results show that when multiple large LNG berths are arranged in an open water environment,the safety spacing should be appropriately increased compared with when the cover conditions are better,and attention should be paid to the influence of crosswind and inclined top flow to ensure the safety of ship navigation.It is also necessary to control the reasonable scale of LNG transportation,adopt optimal navigation measures,and improve ship navigation efficiency.

关 键 词：开敞岛礁海域 LNG码头 规划布置 通航影响 

分 类 号：U656.139[交通运输工程—港口、海岸及近海工程]