LNG码头后方库区防浪墙与陆域形成高程优化设计  

Elevation optimization design of wave wall and land formation in rear gas storage tank area of LNG terminal

作　　者：黄泰坤[1] 庞然[1] 孙建军[1] 梁建国 陈占峰[1] HUANG Tai-kun;PANG Ran;SUN Jian-jun;LIANG Jian-guo;CHEN Zhan-feng(CCCC First Harbor Consultants Co.,Ltd.,Tianjin 300222,China;Guangdong Yangjiang Hailing Bay LNG Co.,Ltd.,Yangjiang 529500,China)

机构地区：[1]中交第一航务工程勘察设计院有限公司,天津300222 [2]广东阳江海陵湾液化天然气有限责任公司,广东阳江529500

出　　处：《水运工程》2022年第8期58-63,128,共7页Port & Waterway Engineering

摘　　要：护岸防浪墙与陆域形成高程合理的确定是LNG项目顺利实施的关键技术问题,直接影响LNG码头后方库区防护效果及工程量,进而影响项目投资和决策。以阳江LNG码头项目为例,采用直接掩护罐区和非直接掩护罐区功能的护岸分区设计标准,有效减少了防护工程量。在满足LNG库区防潮、防浪安全要求的前提下,提出了基于总费用最优并兼顾景观通廊的防浪墙与陆域形成高程联动优化设计方法。开展了4组规则波作用下不同高程水槽断面物模试验,验证了高程优化设计的合理性。不同结构形式挡浪墙越浪量对照试验表明:反曲面防浪墙较直立防浪墙越浪量相对较小,可作为优选结构形式。The reasonable elevation of wave walls and land formation is a key technical issue for successfully implementing LNG project,and its determination directly affects the protection effect and engineering quantity of the rear gas storage tank areas of LNG terminal and then the project investment and decision.With the Yangjiang LNG terminal project as an example,the project adopts a revetment zoning design with direct and indirect cover tank areas,which effectively reduces the engineering quantity in protection.Under the premise of moisture-proof and wave-proof requirements for LNG gas storage tank areas,this paper proposes an elevation linkage optimization design method for wave walls and the land formation,and the method is the most cost-effective and considers the landscape corridor.This paper carries out four groups of physical model tests of flume sections with different elevations under regular waves to verify the rationality of the elevation optimization design.The control tests of wave overtopping rates of wave walls with different structures show that the wave overtopping rate of a curved wall is smaller than that of a vertical wave wall,and thus the curved wall can be regarded as the optimal structure.

关 键 词：LNG码头 库区 防浪墙 陆域形成 高程优化设计 

分 类 号：U656.135[交通运输工程—港口、海岸及近海工程]