摘要
以定州沙河为例,采用MIKE21 FM水动力模块进行二维数值模拟,进行分流比研究。沙河定州李亲顾镇段现状河道分为南北两支,现状分流比为0.4∶0.6。2013年定州市为发展需要,规划将南北支分汊口下移1.85km,分流比发生变化。现对规划后的沙河分汊口不同流量下的分流比进行计算,以对下一步沙河治理等水利工程设计提供技术支持,进而有力地保证沙河定州市段行洪安全,保障人民生命财产安全。
In this paper,taking Shahe River in Dingzhou as an example,the MIKE21 FM hydrodynamic module was used for two-dimensional numerical simulation and the diversion ratio was studied.The present river of Liqigu section in Dingzhou of Shahe River is divided into north and south branches,and the current distributary ratio is 0.4∶0.6.In 2013,in order to meet the development needs of Dingzhou,it was planned to move the northern and southern branches down 1.85km,and the distributary ratio changed.Now the shahe river forks after the planning of the diversion ratio under the different flows of the calculation,in order to the next shahe river control and other water conservancy engineering design provides a technical basis,and then effectively ensure the safety of the shahe river flood,protect the safety of people's lives and property.
作者
刘迪
LIU Di(Hebei Research Institute of Investigation&Design of Water Conservancy&Hydropower,Tianjin 300250,China)
出处
《水科学与工程技术》
2021年第3期45-47,共3页
Water Sciences and Engineering Technology
