| 枕箱、龙穴南水道航道疏浚工程对蕉门出海水域影响的计算分析 |
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| 引用本文： | 肖洋,陈界仁,刘国珍.枕箱、龙穴南水道航道疏浚工程对蕉门出海水域影响的计算分析[J].华南农业大学学报(社会科学版),2011(3). |
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| 作者姓名： | 肖洋 陈界仁 刘国珍 |
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| 作者单位： | 河海大学水文水资源与水利工程科学国家重点实验室;河海大学水利水电学院; |
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| 基金项目： | 国家自然科学基金项目(50879020); 广东省交通厅科技项目(2008-19); 国家科技支撑计划课题九(2008BAB29B09) |
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| 摘 要： | 蕉门出海水道分为枕箱水道和龙穴南水道,其航道整治工程以疏浚为主。采用河床演变分析和二维嵌套潮流悬沙数学模型,研究了枕箱、龙穴南水道航道疏浚工程对蕉门出海水域的影响。研究表明:1)蕉门出海水道一主(枕箱水道)一支(龙穴南水道)的格局基本稳定,河床演变相对稳定,枕箱水道分流比呈减小趋势;2)疏浚工程实施后,对龙穴南水道和枕箱水道分流比、流场、含沙量场和冲淤变化影响较小,引起的变化仅在航道疏浚段及其边滩附近;3)由于疏浚工程量较小,对蕉门出海水域的水沙动力条件没有明显的影响。
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| 关 键 词： | 数值模拟 蕉门 水沙运动 河床演变 |
Analysis and calculations on effect of the navigation dredging project in Zhenxiang and Longxuenan waterway on Yamen estuarine reach |
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| XIAO Yang,CHEN Jie-ren,LIU Guo-zhen.Analysis and calculations on effect of the navigation dredging project in Zhenxiang and Longxuenan waterway on Yamen estuarine reach[J].Journal of South China Agricultural University:Social Science Edition,2011(3). |
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| Authors: | XIAO Yang CHEN Jie-ren LIU Guo-zhen |
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| Institution: | XIAO Yang1,2,CHEN Jie-ren1,LIU Guo-zhen2(State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210098,China) |
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| Abstract: | The seaward waterway of Jiaomen includes Zhenxiang and Longxuenan waterway.Channel dredging is the main method of the navigation training project.Based on analysis of river evolution and the 2D estuarial suspended sedimentation numerical model with the nested grids,the effects of the dredging project in Zhenxiang and Longxuenan waterway on flow dynamics and sediment transportation in Yamen estuary are studied.Main conclusions are as follows: 1)The river evolution of Zhenxiang and Longxuenan waterway is rela... |
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| Keywords: | numerical simulation Jiaomen estuary flow dynamics and sediment transport river bed evolution |
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