沉管管段在浅水航道浮运中的下沉量预报  

Prediction of the Squat of Immersed Tunnel Section during Floating Transport Process in Shallow Water Channel

作　　者：陈昌哲 李泽为[3] 李辉[3] 盘俊 吴静萍[1,2] CHEN Chang-zhe;LI Ze-wei;LI Hui;PAN Jun;WU Jing-ping(School of Transportation,Wuhan University of Technology,Wuhan 430063,China;Green Ship and Marine Engineering Equipment Technology Research Centre,Wuhan University of Technology,Wuhan 430063,China;Salvage Bureau of Guangzhou of Communications Departments,Guangzhou 510000,China)

机构地区：[1]武汉理工大学交通学院,武汉430063 [2]武汉理工大学绿色船舶与海工装备技术研究中心,武汉430063 [3]交通部广州打捞局,广州510000

出　　处：《船海工程》2019年第6期96-99,103,共5页Ship & Ocean Engineering

摘　　要：针对深中通道中沉管管段由于浅水效应产生的下沉问题,验证CFD仿真技术计算沉管管段水动力的精确性,获得标准管段在不同下沉位置与浮运速度下的阻力与下沉力,通过分析管段下沉方向的受力建立运动方程,计算下沉运动,并绘制下沉运动的时历曲线,得到管段在不同干舷与浮运速度下的最大下沉量,以此判断管段浮运的浮态,分析管段浮运速度,供工程应用参考。Aiming at the squat problem of the submerged tunnel section during floating transportation in Shenzhen-Zhongshan channel producing due to shallow water effect, the CFD simulation was used to calculate the hydrodynamic of submerged tunnel section to obtain the resistance and sinking force of standard pipe section at different sinking positions and floating speeds. The motion equation was established by analyzing the force on the sinking direction of the tunnel section, and the sinking motion was calculated and the time history curve of the sinking motion was drawn to obtain the maximum squat of the tunnel section at different freeboards and floating speeds. Based on this, the floating state of pipe section was judged, the floating speed of pipe section was analyzed for reference in engineering application.

关 键 词：沉管管段 浅水航道 数值模拟 水动力 下沉量 

分 类 号：U676.1[交通运输工程—船舶及航道工程]