跨漕河泾港供水桥改建工程的行洪论证分析  

Demonstration and Analysis on Flood Discharge of Reconstruction Project of Water Supply Bridge Spanning Caohejing Port

作　　者：丁雪慧 DING Xuehui(Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200092,China)

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海市200092

出　　处：《城市道桥与防洪》2025年第1期132-134,148,共4页Urban Roads Bridges & Flood Control

摘　　要：针对跨漕河泾港供水桥改建工程中桥墩数量众多,且施工过程中需建设施工围堰从而影响河道行洪的问题,通过MIKE11建立水利分片河网水动力模型,同时对局部工程河道范围利用MIKE21建立二维潮流数学模型,计算分析项目对工程河段水位、流量、流速等影响,综合论证项目对防洪及河势的影响。结果表明,平移施工技术方案的桥墩布设会对漕河泾港的河势产生永久性的影响,建议根据现有桥墩位置原位布设新桥墩。研究结果可为跨漕河泾港桥梁工程建设提供理论依据,也可为类似工程提供参考。In response to the problems that there are many piers in the reconstruction project of water supply bridge spanning Caohejing Port and the construction cofferdam is required to build during the construction to affect the flood discharge of the river channel,the hydrodynamic model of water conservancy fragmented river network is established by MIKE11.At the same time,a two-dimensional tidal flow mathematical model is established for the local engineering river range by MIKE21 to calculate and analyze the impact of the project on the water level,flow rate,flow velocity and other aspects of the engineering river section,which comprehensively demonstrates the impact of the project on the flood control and river regime.The results indicate that the layout of bridge piers in the translational construction technology scheme will have a permanent impact on the river regime of Caohejing Port.It is recommended to install the new bridge piers in situ based on the existing bridge pier positions.The research results can provide theoretical basis for the construction of the bridge project spanning Caohejing Port and for the similar projects.

关 键 词：跨河桥梁 MIKE11 MIKE21 行洪影响 河势影响 

分 类 号：TV135.4[水利工程—水力学及河流动力学]