恶劣海况下防波堤超大型双层扭王字块护面研究  

Super large double-layer accropode armour of breakwater under severe sea conditions

作　　者：李江文 祝健康 LI Jiang-wen;ZHU Jian-kang(CCCC Water Transportation Consultants Shenzhen Co.,Ltd.,Shenzhen 518054,China)

机构地区：[1]中交水运规划设计院深圳有限公司,广东深圳518054

出　　处：《水运工程》2022年第11期74-79,共6页Port & Waterway Engineering

摘　　要：工程区域海况恶劣,水深浪大、强台风频繁、可施工窗口期少,施工难度极大。针对恶劣海况下的防波堤结构方案,基于实际海况特点及施工需求分析,提出采用超大型双层扭王字块护面结构,并从垫层的形式及规格对护面稳定性影响、双层扭王字块护面结构的安全性、护面块体安装密度等方面进行论述。结果表明:双层扭王字块结构安全可靠,能较好地满足施工期防台需求;上下两层块体质量差应尽量加大,上层扭王字块质量宜达到下层的3倍左右或以上;对超大型双层扭王字块护面,表层块体的安装密度具备适当降低空间。研究成果可供类似工程参考。This project is located in severe sea conditions area, with deep water, large waves, frequent strong typhoons and few days of offshore construction, making the construction extremely difficult. Aiming at the breakwater structure under severe sea conditions, based on the analysis of the actual sea conditions and construction requirements, super large double-layer accropode armour structure is innovatively proposed. The form and specification of the cushion and its influence on the armour stability, the safety of the double-layer accropode armour structure and the installation density of the armour block are discussed. The results show that the double-layer accropode structure is safe and reliable, and can better meet the needs of typhoon prevention during construction. The weight difference between the upper and lower layers should be increased as much as possible, and the weight of the upper layer accropode block should be about 3 times or more than that of the lower layer. For the super large double-layer accropode armour, the installation density of upper blocks can be appropriately reduced. The research results can be used as a reference for similar projects.

关 键 词：恶劣海况 岛式深水防波堤 超大型双层扭王字块 

分 类 号：U653.4[交通运输工程—港口、海岸及近海工程]