基于MIKE-21新沂河海口枢纽加固工程分流比研究  

Study on the Diversion Ratio of Reinforcement Project of Xinyihe River Estuary Junction based on MIKE-21

作　　者：李铭杰 LI Ming-jie(Jiangsu Huaishuxinhe Management Office,Huai’an 223001,China)

机构地区：[1]江苏省淮沭新河管理处,江苏淮安223001

出　　处：《海河水利》2022年第3期110-113,共4页Haihe Water Resources

摘　　要：分流比是分汊河道的一个重要参数,其变化直接影响到分汊河道各级支汊的兴衰,同时也影响着河道的防洪、航运等安全问题。因汇流方式的改变,分流口、闸上引河及闸下港道在水流作用下产生冲刷或淤积,新沂河口实际分流比与设计相比发生较大变化。采用MIKE-21探究了工程分流比改变原因,重新校核控制断面水位是否满足标准,为新沂河口下一步治理提供理论依据。研究成果可为相关工程提供参考。The diversion ratio is an important parameter of the bifurcated channel. The change of diversion ratio directly affects the rise and fall of all branches of the bifurcated channel,as well as the safety of flood control and navigation. Due to the change of confluence mode in Xinyihe River estuary,the diversion outlet,the approach river above the gate and the channel under the gate produce scouring or siltation under the action of water flow which results in the great change of the actual diversion ratio from the design diversion ratio. Therefore,MIKE-21 is applied in this paper to explore the reasons for the change of diversion ratio of the project and recheck whether the water level of the control section meets the standard,so as to provide a theoretical basis for the next treatment of Xinyihe River estuary. The research results can provide reference for relevant projects.

关 键 词：新沂河海口 MIKE-21 分流比 数值模拟 

分 类 号：TV61[水利工程—水利水电工程] TV131.65