富水水库下泄对下游防汛形势影响研究

Impact of water discharge from Fushui Reservoir on flood prevention downstream

运用降雨径流经验相关图方法推求和预测富水干流下游场次暴雨洪水过程,采用阳新长江干堤洪水风险图编制项目富水河堤漫溢方案中建立的富水下游干流一维水动力学模型,对富水水库不同泄洪方案下富水下游干流水位变化情况进行分析,研判预测时段富水下游干流防汛形势,提出预测时段富水水库调度运用的安全泄量,为防汛决策提供技术支撑。

Experience correlation diagram method is adopted to calculate and predict rainstorm flood events in lower reaches of Fushui mainstream. One dimensional hydrodynamic model was created according to the scenario of overtopping of Fushui River Bank during flood risk map of Yangxin Section of Yangtze River Embankment. Changes of water level in Fushui downstream under different flood discharge scenarios are examined, so as to make judgement and prediction on flood situation in the downstream and ensure safe discharge of water by optimization of reservoir regulation and provide technical support for decision making.