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钱塘江河口一维盐度动床预报模型及应用

史英标, 李若华, 姚凯华

史英标, 李若华, 姚凯华. 钱塘江河口一维盐度动床预报模型及应用[J]. 水科学进展, 2015, 26(2): 212-220. DOI: 10.14042/j.cnki.32.1309.2015.02.008
引用本文: 史英标, 李若华, 姚凯华. 钱塘江河口一维盐度动床预报模型及应用[J]. 水科学进展, 2015, 26(2): 212-220. DOI: 10.14042/j.cnki.32.1309.2015.02.008
SHI Yingbiao, LI Ruohua, YAO Kaihua. 1-D movable bed numerical forecast model of salinity of the Qiantang River estuarine reach and its application[J]. Advances in Water Science, 2015, 26(2): 212-220. DOI: 10.14042/j.cnki.32.1309.2015.02.008
Citation: SHI Yingbiao, LI Ruohua, YAO Kaihua. 1-D movable bed numerical forecast model of salinity of the Qiantang River estuarine reach and its application[J]. Advances in Water Science, 2015, 26(2): 212-220. DOI: 10.14042/j.cnki.32.1309.2015.02.008

钱塘江河口一维盐度动床预报模型及应用

基金项目: 浙江省省属科研院所专项计划项目(2015F50010); 水利部公益性行业科研专项经费资助项目(201101056)
详细信息
    作者简介:

    史英标(1967—),男,浙江嵊州人,教授级高级工程师,主要从事河口海岸水沙动力学及水环境方面的研究。E-mail:shiyb@zjwater.gov.cn

  • 中图分类号: TV131.4

1-D movable bed numerical forecast model of salinity of the Qiantang River estuarine reach and its application

  • 摘要: 钱塘江河口为强涌潮、高含沙量、河床冲淤剧烈的河口,其盐度输移时空变化受河床冲淤的反馈影响十分显著。建立了考虑河床冲淤变化的一维盐度动床数学模型,耦合求解水沙运动、河床冲淤及盐度输移过程,数值计算方法采用守恒性较好的有限体积法。验证结果表明:河床冲淤对氯度的影响非常显著,动床模型的结果与实测基本吻合,在长历时盐度预报中采用动床模型是必要的。应用该模型分析了钱塘江河口咸水入侵对上游建库、治江缩窄工程等人类活动的响应,探讨了杭州城市供水水源保证率。结果表明,新安江水库、河口治理缩窄工程对改善河口淡水资源利用、保障杭州市供水安全显著;供水保证率要达95%以上,需采取上游水库泄水调度和新建备用水库等措施。
    Abstract: The Qiantang River estuary is an alluvial estuary with strong tidal bore, high sediment concentration and easy changeable riverbed. The interaction between tide and fluvial feedback has great effects on saltwater intrusion. In this paper, a 1-D numerical forecast model of salinity has been developed in the light of riverbed deformation, and the process of water flow, sediment transport, river bed deformation and salinity are fully coupled solved. The governing equations of the model are solved by an explicit finite-volume method with good conservation performance. The verification results show that the riverbed deformation has great influence on chlorine, and the chlorine computed by the movable-bed numerical model agrees well with the measured. Therefore, it is necessary to adopt the movable-bed numerical model in long-duration salinity forecast. Finally, the model is used to investigate the response pattern of saltwater intrusion in the Qiantang River estuary to human activities, such as construction of Xin'anjiang-reservoir and the Qiantang River estuary narrowing regulation. And the problem of the water supply guarantee rate of Hangzhou city is also discussed. The results show that Xin'anjiang-reservoir and the Qiantang River estuary regulation engineering have a significant effect on improving the estuarine freshwater resources and ensuring the safety of water supply of Hangzhou city. In order to raise the water supply guarantee rate to 95%, the measures of scheduling release water discharge from the upstream reservoir and building a new backup reservoir should be taken.
  • 期刊类型引用(9)

    1. 朱沈鸣,史英标,程文龙. 钱塘江河口段含沙量变化特征模拟分析. 水电能源科学. 2024(01): 69-73 . 百度学术
    2. Junbao Huang,Zhilin Sun,Dongfeng Xie. Morphological evolution of a large sand bar in the Qiantang River Estuary of China since the 1960s. Acta Oceanologica Sinica. 2022(02): 156-165 . 必应学术
    3. 张舒羽,丁涛,刘进宝,胡玉珊. 基于文献计量法的涌潮研究动态分析. 海洋学研究. 2022(01): 89-100 . 百度学术
    4. 李若华,马继侠,张舒羽,潘冬子. 强潮作用下钱塘江河口盐水入侵机制. 水利水电科技进展. 2022(05): 37-44 . 百度学术
    5. 孙昭华,严鑫,谢翠松,李奇. 长江口北支倒灌影响区盐度预测经验模型. 水科学进展. 2017(02): 213-222 . 本站查看
    6. 黄锐贞,陈晓宏,何艳虎,于海霞. 上游来水与下游潮位对河口含氯度的影响——以磨刀门河口为例. 中国农村水利水电. 2017(04): 101-105 . 百度学术
    7. 李光辉,孙志林,胡世祥,郭聪. 盐水入侵理论预测模型及其在钱塘江河口的应用. 水力发电学报. 2016(11): 9-15 . 百度学术
    8. 张舒羽,周维,史英标. 千岛湖配水工程对钱塘江河口盐水入侵影响. 水科学进展. 2016(06): 876-882 . 本站查看
    9. 李若华,史英标,张舒羽. 钱塘江河口抗咸流量预报模式及其检验. 水利水电科技进展. 2016(05): 75-80 . 百度学术

    其他类型引用(5)

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  • 被引次数: 14
出版历程
  • 收稿日期:  2014-09-04
  • 刊出日期:  2015-03-24

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