大桥水库汛限水位分期控制研究

发布时间：2019-02-18 23:00

【摘要】：本文对大桥水库汛限水位分期控制方案进行了研究。首先,结合大桥水库调度运行特性,对水库所在流域的洪水成因变化、降雨时间分布和洪水发生时间分布等特征进行了分析,偏安全考虑确定汛期分期方案为:6月1日至9月15日为主汛期、9月16日至9月30日为后汛期。其次,采用频率分析法推求了大桥水库的分期设计洪水成果,结果表明,大桥水库后汛期设计洪水与年最大设计洪水相比量级较小,进行汛期分期调度既是必要的,也是可能的。最后,基于大桥水库分期设计洪水成果,经调洪计算分析最终推荐大桥水库汛限水位分期控制方案为主汛期2 018.00 m、后汛期2 019.00m,此方案有利于拦蓄汛末洪水资源,减少弃水量,增加水库综合效益,并可为大桥水库汛限水位动态控制提供依据。
[Abstract]:In this paper, the control scheme of flood limit water level of Bridge Reservoir by stages is studied. First of all, combined with the operation characteristics of the bridge reservoir, the characteristics of the flood cause change, rainfall time distribution and flood occurrence time distribution in the basin of the reservoir are analyzed. Considering the partial safety, the plan of flood season is determined as follows: June 1 to September 15 is the main flood season, September 16 to September 30 is the later flood season. Secondly, the design flood results of the bridge reservoir are deduced by frequency analysis method. The results show that the order of magnitude of the design flood in the post-flood season of the bridge reservoir is smaller than that of the maximum design flood in the year, so it is necessary to carry out the phased operation in the flood season. It is also possible. Finally, based on the flood design results of the bridge reservoir by stages, the flood limit water level control scheme of the bridge reservoir is recommended to be 2 018.00 m in the main flood season and 2 019. 00 m in the later flood season. This scheme is beneficial to the storage of flood resources at the end of the flood season. Reducing the amount of water discarded, increasing the comprehensive benefit of the reservoir, and providing the basis for the dynamic control of the flood limit water level of the bridge reservoir.
【作者单位】：中国水利水电科学研究院;
【基金】：国家自然科学基金青年基金(51509268)
【分类号】：TV697.1

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