| 摘要: |
| 通过长江下游大量航道整治研究成果的总结提炼，探讨和论述感潮河段航道整治设计理论与方法。结果表明：根据不同的径流和潮汐影响，感潮河段中可划分为常年潮流段、季节性潮流段和常年径流段3个区段；根据河型特征和滩槽格局，浅滩类型有单级分汊型、多级分汊型、水下心滩型和水下沙洲型浅滩四种。应综合考虑航道整治影响因素及外部条件，确立航道整治总体原则，梳理得出不同区段设计通航水位及其与上下游衔接，以及整治参数（整治水位和整治线宽度）的确定方法；针对各类浅滩特点，采取相应的整治思路和整治工程措施，整治建筑物包括混凝土构件混合堤和新型生态守护结构。 |
| 关键词: 感潮河段 航道整治 长江 设计理论与方法 |
| DOI：10.12170/201906010 |
| 分类号:U617 |
| 基金项目:国家自然科学基金资助项目（51679147） |
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| Study on design theory and method of waterway regulation in tidal river |
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ZHANG Xingnong, XIA Yunfeng, CAO Minxiong
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Nanjing Hydraulic Research Institute， Nanjing
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| Abstract: |
| Based on summary of the research results of waterway regulation in the lower reaches of the Yangtze River, the design theory and method of waterway regulation in tidal rivers are discussed and expounded. The results show that in a tidal reach, three sections: perennial tidal current, seasonal tidal current and perennial runoff can be divided according to the different runoff and tidal impacts, and there are four types of shoal: single-stage branching type, multi-stage branching type, underwater diara type and submerged bar type according to the characteristics of river type and the beach & channel pattern. The overall principle of the tidal waterway regulation should be established by consideration on many influencing factors and external conditions, and the designed navigable water level of different sections and its connection with the upstream and downstream waterway, as well as the determination method of the regulation parameters (regulation water level and regulation line width) should be sorted out, and the regulation ideas and engineering measures for the characteristics of various shoals are presented, and the concrete component mixed dikes and new type of protection structures are adopted. |
| Key words: tidal river waterway regulation the Yangtze River design theory and method |
