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首页> 外文期刊>Ocean & coastal management >Physical model study for effects of the Hong Kong-Zhuhai-Macao Bridge on harbors and channels in Lingdingyang Bay of the Pearl River Estuary
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Physical model study for effects of the Hong Kong-Zhuhai-Macao Bridge on harbors and channels in Lingdingyang Bay of the Pearl River Estuary

机译：香港 - 珠澳桥对珠江河口滨海湾港和渠道的影响的物理模型研究

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摘要

Human activities, involving construction such as large-scale bridge projects in tidal estuaries, can lead to undesirable and severe morphodynamic responses, such as excessive siltation in the harbors and channels. Lingdingyang Bay of the Pearl River Estuary (LBPRE) is a typical bay with unique geomorphological features that might cause complex changes in hydrodynamic features and sediment movement. The LBPRE includes a number of harbors and channels, including Nansha Harbor of Guangzhou Port and the western harbors of Shenzhen Port, which are two hub ports in South China, and their corresponding and important Lingding and Tonggu channels. Designed to cross over the LBPRE to connect Hong Kong, Zhuhai, and Macao, the proposal of the Hong Kong-Zhuhai-Macao Bridge (HZMB) is a representative of the most complicated and the longest sea-crossing transportation project in the world, which consists of several segments of bridge, a tunnel, and two man-made islands. Therefore, it is of extreme significance to demonstrate the effects of the HZMB on the relevant harbors and channels through study. In this article, a large-scale physical model of tidal currents and sediment movement, covering the entire LBPRE with a horizontal scale of 1:900 and a vertical scale of 1:120, was presented with emphasis on the effects of the HZMB on water flow and sediment movement. The design and layout of the model are described in detail. The accuracy of the model was verified with in situ data; the results show that the simulated tidal levels, currents, and deposition in the channels are all in good agreement with measured field data. Then, evaluation on the effects of the HZMB was carried out by comparing the scenarios with and without the bridge; the effects on hydrodynamics of the LBPRE and the erosion and deposition occurring in the harbors and channels were analyzed. The following main conclusions were reached. (1) The effects of the HZMB on tidal levels, currents, and prisms were all relatively small, and the influence was limited within an area of 5 km upstream and downstream from the bridge. The construction of the HZMB tends to lead to increase of the tidal currents in Lingding Channel between the two man-made islands, which is favorable for maintenance of water depth in the channel. (2) The effects of the HZMB on erosion and deposition in the harbors and channels are insignificant. (3) The construction of the HZMB is not predicted to have substantial effects on changing the pattern of the shoals and channels in the LBPRE. (4) The HZMB is feasible as far as its effects on hydrodynamics, harbors, and channels are concerned.
机译：人类活动，涉及潮汐河口中的大型桥梁项目等建筑，可能导致不良和严重的形态学反应，例如港口和渠道的过度淤积。 Lingdingyang珠江河口（LBPRE）是一个典型的海湾，具有独特的地貌特征，可能会导致流体动力学特征和沉积物运动的复杂变化。 LBPRE包括许多港口和渠道，包括广州港口的南沙港和深圳港口的西部港口，这是华南地区的两个枢纽港口，以及他们的相应和重要的歌曲和汤格渠道。旨在跨越LBPRE以连接香港，珠海和澳门，港珠海桥（HZMB）的提议是世界上最复杂，最长的海关运输项目的代表，这由几个桥梁，隧道和两个人为岛屿组成。因此，通过研究证明HZMB对相关港口和渠道的影响是极致的重要性。在本文中，潮流和沉积物运动的大规模物理模型，覆盖了横向尺度为1：900的整个LBPRE和1：120的垂直等级，重点是HZMB对水的影响流动和沉积物运动。详细描述了模型的设计和布局。使用原位数据验证了模型的准确性;结果表明，频道中的模拟潮汐电平，电流和沉积与测量的现场数据吻合良好。然后，通过将场景与桥梁进行比较来进行关于HZMB效果的评估;分析了对LBPRE流体动力学的影响以及在HARBORS和通道中发生的侵蚀和沉积。达到了以下主要结论。 （1）HZMB对潮汐水平，电流和棱镜的影响均相对较小，并且影响在5km上游和桥下游的面积内有限。 HZMB的结构倾向于导致两个人造岛之间的岭桥通道中的潮流增加，这有利于维持通道中的水深。 （2）HZMB对港口和通道中腐蚀和沉积的影响是微不足道的。 （3）HZMB的构建尚未预测对改变LBPRE中的浅层和频道的模式具有实质性影响。 （4）HZMB是可行的，就其对流体动力学，港口和渠道的影响是可行的。

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  • 来源
    《Ocean & coastal management》 |2019年第7期|76-86|共11页
  • 作者

    Li Mengguo; Yan Yong; Han Xijun; Li Wendan;

  • 作者单位

    Tianjin Res Inst Water Transport Engn Natl Engn Lab Port Hydraul Construct Technol Minist Transport Key Lab Engn Sediment Tianjin 300456 Peoples R China;

    Tianjin Res Inst Water Transport Engn Natl Engn Lab Port Hydraul Construct Technol Minist Transport Key Lab Engn Sediment Tianjin 300456 Peoples R China;

    Tianjin Res Inst Water Transport Engn Natl Engn Lab Port Hydraul Construct Technol Minist Transport Key Lab Engn Sediment Tianjin 300456 Peoples R China;

    Tianjin Res Inst Water Transport Engn Natl Engn Lab Port Hydraul Construct Technol Minist Transport Key Lab Engn Sediment Tianjin 300456 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hong Kong-Zhuhai-Macao Bridge; Pearl River Estuary; Lingdingyang Bay; Hydrodynamics; Harbor; Channel; Physical model;

    机译：香港 - 珠海 - 澳桥;珠江河口;Lingdingyang Bay;流体动力学;港口;频道;物理模型;

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