| 港珠澳大桥东人工岛岛隧结合部沉管安放区导流堤掩护效果水动力精细模拟 |
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| 引用本文： | 何杰,高正荣,辛文杰,沙海明,朱方剑.港珠澳大桥东人工岛岛隧结合部沉管安放区导流堤掩护效果水动力精细模拟[J].海洋工程,2019,37(5):89-98. |
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| 作者姓名： | 何杰 高正荣 辛文杰 沙海明 朱方剑 |
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| 作者单位： | 南京水利科学研究院水文水资源与水利工程科学国家重点实验室;港口航道泥沙工程交通行业重点实验室;台州市水利局 |
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| 基金项目： | 国家重点研发计划（2017YFC0405900） |
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| 摘 要： | 港珠澳大桥东人工岛所在海域受水下地形和近岸边界影响呈"涨潮NE向、落潮SW向"的往复流特点,东人工岛岛隧结合部沉管基槽水域在岛头挑流作用下涨潮流呈N向流动。根据岛隧结合部区域的水流运动特征,制订了基槽掩护区南北两侧"非对称"型的双导流堤掩护措施。建立基槽局部水域的三维水流数学模型,模拟岛隧结合部水流运动的三维特征,对导流堤实施后的掩护效果进行水动力仿真模拟。研究结果表明:基槽掩护区内流速大幅减弱,E33管节基槽的人工整平段最大流速在0.5 m/s以内,整平船施工段最大流速不超过0.8 m/s,E33管节各区流速均能满足沉管安装的水流条件。为安全起见,E33管节沉放安装时机适合选在潮流动力较弱的小潮期。
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| 关 键 词： | 港珠澳大桥 人工岛 岛隧结合部 掩护区 导流堤 沉管安装 |
Hydrodynamic simulation of drainage effect of the diversion dike in the immersed tube area of east island-tunnel joint of Hong Kong-Zhuhai-Macao Bridge |
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| HE Jie,GAO Zhengrong,XIN Wenjie,SHA Haiming and ZHU Fangjian.Hydrodynamic simulation of drainage effect of the diversion dike in the immersed tube area of east island-tunnel joint of Hong Kong-Zhuhai-Macao Bridge[J].Ocean Engineering,2019,37(5):89-98. |
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| Authors: | HE Jie GAO Zhengrong XIN Wenjie SHA Haiming and ZHU Fangjian |
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| Institution: | Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China;
Key Laboratory of Port, Waterway and Sedimentation Engineering of the Ministry of Transport, Nanjing 210029, China,Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China;
Key Laboratory of Port, Waterway and Sedimentation Engineering of the Ministry of Transport, Nanjing 210029, China,Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China;
Key Laboratory of Port, Waterway and Sedimentation Engineering of the Ministry of Transport, Nanjing 210029, China,Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China and Taizhou Water Conservancy Burea, Taizhou 318000, China |
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| Abstract: | |
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| Keywords: | Hong Kong-Zhuhai-Macao Bridge artifical isand island tunnel joint shelter diversion dike immersed tube installation |
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