富水水库汛限水位研究

Research on the Flood Limit Water Level of Fushui Reservoir

合理的汛限水位能协调防洪与兴利之间的矛盾,产生防洪和兴利的双重收益。富水水库汛限水位及调度规程自1996年一直沿用至今,因此有必要对富水水库汛限水位进行研究。根据新形势下流域防洪需求拟定富水水库不同的汛限水位调整方案,基于近30年6-7月的富水水库入库径流序列和8个典型洪水年的下游洪水过程,建立模型对富水水库调蓄和下游洪水演进进行模拟计算,统计并比较各调度方案的防洪效益与蓄水效益。最终,通过结果对比分析,得出本文所采取的汛限水位研究方法对于下游有重要防洪任务的水库的汛限水位研究较为适用。

Reasonable flood limit water level can coordinate the contradiction between flood control and benefit,and produce double benefits of flood control and benefit.The flood limit water level and scheduling procedures of Fushui Reservoir have been in use since 1996,so it is necessary to study the flood limit water level of Fushui Reservoir.In this paper,according to the flood control needs of the basin under the new situation,different adjustment schemes of the flood limit water level of the Fushui Reservoir are formulated.The regulation and storage of the Fushui Reservoir and the evolution of downstream floods are simulated and calculated,and the flood control benefits and water storage benefits of each dispatch scheme are counted and compared.Finally,it is proved that the research method of flood-limited water level adopt⁃ed in this paper is suitable for the study of flood-limited water level of reservoirs with important flood control tasks downstream.