南昌工程学院学报2024，Vol.43Issue(1)：8-15,8.
信江白塔河柏泉站河段干流对支流顶托响应分析
Analysis of response of main stream to tributaries in Boquan Station section of Baita River in Xinjiang River
摘要
Abstract
The relationship between water level and flow of the river directly affects the reliability of hydrological data com-pilation,and reasonable and accurate water level and flow relationships can provide a basis for hydrological forecasting and water conservancy management.Accurate analysis of water level and flow relationships is of great significance to river water regime analysis and flood control management.This article takes the Baita River Boquan hydrological station as the research object,use Mike21 software to establish a hydrodynamic model of the river channel,simulates the dynamic process of river flow,analyzes the water level and flow curve of the station site section and the water surface line along the main stream un-der the influences of flood backwater effect,and through scenario simulation,we analyze the backwater effect of tributary floods on the main stream.The simulation results show:The simulation results of the hydrodynamic model are basically con-sistent with the measured values,the correlation coefficient is 0.98 and the Nash efficiency coefficient is 0.85 and the accu-racy meets the basic requirements.The river hydrodynamic model can more comprehensively analyze the flow changes at the intersection of main rivers and tributaries and the coupled response of the flood process of main rivers and tributaries.The flood peaks and volumes of different floods in the tributaries have obvious backwater effects on the main stream.Moreover,it is closely related to the synchronicity with the peak arrival time of main and tributary rivers.关键词
Mike21/顶托作用/水动力模拟/响应分析Key words
MIKE 21/backwater effect/hydrodynamic simulation/response analysis分类
建筑与水利引用本文复制引用
王云帆,白桦,桂发亮,杨永生,黄勇峰,刘海凤,桂子涵,吴绍飞..信江白塔河柏泉站河段干流对支流顶托响应分析[J].南昌工程学院学报,2024,43(1):8-15,8.基金项目
江西省水利厅科技项目(202224ZDKT18) （202224ZDKT18）
江西省自然科学基金青年项目(20232BAB214089) （20232BAB214089）
中国水利水电科学研究院流域水循环模拟与调控国家重点实验室开放基金项目(IWHR-SKL-KF202308) （IWHR-SKL-KF202308）
