摘要
针对气象预报的汾河水库入库洪水过程,对汾河水库开展防洪调度优化设计,有利于延长汾河水库防洪预案实施时间,有效减轻防洪压力。采用汾河水库防洪调度优化模型,将蓝色、黄色、橙色、红色预警级暴雨导致的汾河水库入库洪水过程进行了防洪调度优化,与原调度结果相比较,调度优化方案分别将区域蓝色、黄色、橙色和红色预警级暴雨导致的汾河水库入库洪水的下泄流量峰值分别削减了170.0 m~3/s、50.0 m~3/s、50.0 m~3/s和155.8 m~3/s,当遭遇红色预警暴雨导致的入库洪水时,汾河水库大坝安全风险由原调度方案的一级风险降低至二级。汾河水库防洪调度优化方案可有效减缓天气预报洪水情形下水库及下游的防洪压力。
In terms of the flood process of Fenhe Reservoir based on the meteorological forecast,the optimal operation of flood control in Fenhe Reservoir in not only an effective method to prolong the implementation time of flood plan of Fenhe Reservoir,but also can effectively reduce the flood pressure.The flood regulation optimization model of Fenhe Reservoir is used to optimize the flood operation of Fenhe Reservoir during the inflow process caused by the blue,yellow,orange and red early warning rainstorms.Compared with the original scheduling result,the optimized scheduling scheme reduces the peak discharge of the inflow flood caused by the regional blue,yellow,orange and red warning rainstorms in the Fenhe Reservoir by 170.0 m~3/s,50.0 m~3/s,50.0 m~3/s and 155.8 m~3/s,respectively.Applying the optimized scheduling scheme under red rainstorm,the safety risk of the dam of Fenhe Reservoir is reduced from the first-level risk of the original dispatching scheme to the second-level risk.The flood optimization scheduling scheme can effectively reduce the flood pressure on Fenhe Reservoir and downstream under the condition of weather flood forecasting.
作者
周全保
王旭东
高晓丽
曹玉涛
ZHOU Quanbao;WANG Xudong;GAO Xiaoli;CAO Yutao(Shanxi Water Resources Development Center,Taiyuan 030002;College of Hydro Science and Engineering,Taiyuan University of Technology,Taiyuan 030024)
出处
《中国防汛抗旱》
2024年第6期48-52,共5页
China Flood & Drought Management
基金
山西省水利科学技术研究与推广项目(2023ZF01)
山西省基础研究计划(20210302124370)。
关键词
汾河水库
天气预报洪水
洪水过程
调度优化
风险等级
山西省
Fenhe Reservoir
weather forecasting floods
flood process
optimal scheduling
risk level
Shanxi Province
