浅吃水半潜驳在浅水域运输沉管的运动响应分析  

Motion Response of Sallow-Water Submerged Barge Transporting Sinking Tube in Shallow Water

作　　者：王雪刚[1,2,3] 苏林王 林美鸿[1,2,3] WANG Xuegang;SU Linwang;LIN Meihong(CCCC Fourth Harbor Engineering Institute Co.,Ltd.,Guangzhou 510230,China;CCCC Key Lab of Environmental Protection&Safety in Foundation Engineering of Transportation,Guangzhou 510230,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519082,China)

机构地区：[1]中交四航工程研究院有限公司,广东广州5102300 [2]中交交通基础工程环保与安全重点实验室,广东广州510230 [3]南方海洋科学与工程广东省实验室(珠海),广东珠海519082

出　　处：《中国航海》2022年第4期94-99,共6页Navigation of China

基　　金：国家重点研发计划专项(2017YFC0805303);中国交建特大科技研发项目(2020-ZJKJ-01)。

摘　　要：针对湾区浅水域浅吃水半潜驳运输海底沉管管节的方案,借助水动力势流理论,探讨浅吃水半潜驳在浅水域驳运沉管管节的运动响应。基于水动力势流软件AQWA,建立浅吃水半潜驳和钢筋混凝土沉管管节的水动力模型,将驳运航道的长距离拖航工艺参数和风浪流等海洋环境参数作为输入条件,分析浅吃水半潜驳和沉管管节整体系统的各自由度固有周期和不同风浪流组合下的六自由度运动响应的幅值和加速度。研究成果中各自由度的固有周期可为驳运窗口期提供参考,运动响应幅值可为钢筋混凝土沉管管节的运输质量的控制提供决策支持和预警,运动加速度可为驳运沉管管节封仓加固和支墩系统的设计提供依据。In studying the plan of transporting tube elements of immersed tube in shallow water of the Bay Area,this paper researches,with the hydrodynamic potential flow theory,the motion response of shallow-draft semisubmersible barge in that working condition.The hydrodynamic models of the submerged barge and the concrete tube element are constructed with software AQWA respectively.The submerged barge and transported tube element are studied as one system under the condition of the technological parameters of long-distance transporting operation and the environment parameters,such as wind and current.The natural period of the system for different degrees of freedom and the amplitude and acceleration of motion response in 6 dimensions is investigated.The calculated amplitude can provide the reference for transportquality control decision-making and early warning and the value of acceleration can be used as the reference in tube element sealing and reinforcing design and the buttress system design.

关 键 词：浅吃水半潜驳 沉管 浅水域 运动响应 驳运 

分 类 号：U656.6[交通运输工程—港口、海岸及近海工程]