水动力学数值模拟在磨刀门水道高桩码头防洪影响评价中的应用研究  

Application of Hydrodynamic Numerical Simulation in Flood Control Impact Assessment of High-piled Wharf in Modaomen Waterway

作　　者：景亚平 何佩珊 闫彩 JING Yaping;HE Peishan;YAN Cai(Guangzhou Pearl River Water Resources Protection Technology Co.,Ltd.,Guangzhou,Guangdong 510610,China;Bureau of Hydrology and Water Resources,Pearl River Water Resources Commission,Ministry of Water Resources,Guangzhou,Guangdong 510610,China)

机构地区：[1]广州珠江水资源保护科技发展有限公司,广东广州510610 [2]水利部珠江水利委员会水文水资源局,广东广州510610

出　　处：《水利与建筑工程学报》2025年第2期205-212,共8页Journal of Water Resources and Architectural Engineering

基　　金：广东省科技计划项目(2003B1212070031);珠江流域水环境科学数据平台(2024.1-2026.12)。

摘　　要：水动力学数值模拟已经成为研究涉水工程中各类水流问题的的重要手段之一,为了研究其在高桩码头防洪影响评价中的应用,以广东省西江磨刀门水道上的神湾港码头工程为例,通过对码头及所在西江下游河道建立二维数学模型,并对比分析工程前后不同工况下的模拟结果。结果表明:高桩码头工程建设引起的局部河段水位壅高及流速、流向变化较小,对工程河段行洪没有产生明显的不利影响;工程建设对河势、河槽及河道水动力轴线的影响仅限于码头位置局部河段,没有对磨刀门水道整体的行洪、航运等产生明显影响;模型计算成果与神湾港码头工程建成运行近20年的实际情况相符。表明水动力学数值模拟在磨刀门水道高桩码头防洪影响评价中具有较好的适用性。Hydrodynamic numerical simulation has become one of the essential methods for analyzing various water flow problems in hydraulic engineering.To investigate its application in flood control impact assessment for high-pile wharves,this study takes the Shenwan Port Wharf Project on the Modaomen Waterway of the Xijiang River as an example.A two-dimensional mathematical model was established for the wharf and the downstream river reach of the Xijiang River.By comparing and analyzing the simulation results under different conditions before and after the project,it was found that the construction of the high-pile wharf induced minor changes in local water level rise,flow velocity,and flow direction,which are insufficient to cause significant adverse impacts on flood discharge in the project river reach.The influence of the project on river regime,riverbed,and the hydrodynamic axis of the waterway was also limited to the local reach around the wharf and did not have a noticeable impact on the overall flood discharge and navigation of the Modaomen Waterway.The model's computational results align with the actual conditions observed during nearly 20 years of operation of the Shenwan Port Wharf,indicating that hydrodynamic numerical simulation is highly applicable to flood control impact assessments for high-pile wharves on the Modaomen Waterway.

关 键 词：水动力数值模拟 磨刀门水道 高桩码头 防洪影响评价 

分 类 号：TV131.3[水利工程—水力学及河流动力学]