感潮河网区风暴潮洪水风险模拟研究——以中顺大围为例  

Study on Simulation of Storm Surge Flood Risk in Tidal River Network Area——Take the Zhongshun Protection Zone as an Example

作　　者：杨莉玲 杨芳[1,2] 余顺超 徐峰俊 YANG Liling;YANG Fang;YU Shunchao;XU Fengjun(Pearl River Hydraulic Research Institute,PRWRC,Guangzhou 510611,China;Key Laboratory of the Pearl River Estuarine Dynamics and Associated Process Regulation,Ministry of Water Resources,Guangzhou 510611,China)

机构地区：[1]水利部珠江水利委员会珠江水利科学研究院,广东广州510611 [2]水利部珠江河口动力学及伴生过程调控重点实验室,广东广州510611

出　　处：《人民珠江》2018年第8期4-8,共5页Pearl River

摘　　要：感潮河网区资源丰富且动力复杂,面临着流域洪水和潮水、风暴潮的多重灾害风险。以珠江三角洲感潮河网区的中顺大围保护区为例,探讨了径流洪水与风暴潮洪水的历史遭遇概率,通过两套不同尺度的一、二维联解模型(河网一维与河口近海区二维联解、河网一维与保护区二维联解)模拟了不同情景下风暴潮洪水与径流洪水在三角洲网河区河道遭遇和演进,以及通过保护区薄弱堤段溃决后在保护区内宣泄传播的过程。较成功地模拟再现了河口的复杂洪灾系统,可应用于其他区域风暴潮洪水模拟,也为风暴潮洪水风险分析提供了参考。Tidal river network area has abundant resources,complex dynamics,while facing multiple disaster risks of basin flood,tide,and storm surge.In this study,taking Zhongshun protection zone in the Pearl River Delta tidal river network area as an example,the historical encounter probability of runoff flood and storm surge flood in the river basin are discussed based on field survey and statistic data,then,by two sets of 1D-2D coupled models（1D river network with 2D estuarine coastal area,1D river network with 2D reserve area） of different dimension,encounters and evolution of storm flood and runoff flood in Delta area,together with spread process of break flood from the weak section,are simulated under different scenarios.The typical storm surge process is duplicated directly and objectively,and it can provide important reference for storm surge flood simulation and risk analysis in tidal river network area.

关 键 词：风暴潮 溃决洪水 联解模型 数值模拟 

分 类 号：TV122[水利工程—水文学及水资源]