基于MIKE11的强人工干预平原感潮河网水动力模型的构建及初步应用  

The Construction and Preliminary Application of Hydrodynamic Model of Tidal River Network in Strong Artificial Intervention Based on MIKE11

作　　者：李泉 唐清华 孟庆强 高强 唐雄飞 

机构地区：[1]广州市水务科学研究所,广东广州510220 [2]香港科进咨询有限公司

出　　处：《净水技术》2014年第A02期69-73,共5页Water Purification Technology

基　　金：水利部科技推广计划项目(TG1315);广东省水利科技创新项目(2011-25)

摘　　要：广州海珠区河网属强潮河段,水系纵横交错,水情极其复杂,且水工建筑众多,这些因素都大大增加了水动力模拟的难度。该文基于MIKE11软件包,构建了受强人工干预下的海珠区平原感潮河网水动力数学模型。由于水文站分布的限制,本文通过构建珠三角大河网模型获取目标模型所需边界水文数据,并通过空间步长和时间步长控制、地形复核、以时间序列赋值群闸操作等方法,增加模型的稳定性和精度。海珠河网水动力模型涵盖了外江和海珠区内河涌共78条河涌(河流),概化断面共1 328个,包含40个水闸和6个泵站。模型验证结果表明,海珠区河网水动力模型水位、流量误差均在可接受范围内,模型科学合理。最后通过模型的计算,初步分析了不同调度方案对改善海珠区水体交换能力的作用。Haizhu river network are composed by strong tidal river reaches, criss-crossing of rivers, the large number of rivers and hydraulic structures, the great variation in size and water flow, all these factors have greatly increased the difficulty of hydrodynamic simulations. Based on MIKE11,A hydrodynamic model of tidal river network in strong artificial intervention was made Due to the constraints of topography and position of hydrological stations ,the Haizhu river network hydrodynamic model gets the boundary data by the big river networks hydrodynamic model of PRI）o Through the repeated testing of space step and time step, and assigning the sluices value by time series, to solve the problem of convergence. The Guangzhou Haizhu river network hydrodynamic model consists of 78 rivers, 1 328 cross-sections, 40 sluice gates, 6 pumping stations. The model validation results show that the hydrodynamic model forecasts the water level and flow discharge correctly simulation errors are within the acceptable range. Finally, by the calculation of the hydrodynamic model, a preliminary analysis of the effect of the water diversion project to improve water exchange ability was made.

关 键 词：平原感潮河网 水动力模型 MIKE11 强人工干预 群闸联控 

分 类 号：TV131.4[水利工程—水力学及河流动力学]