| 黎平双江电站水库暴雨洪水设计 |
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| 作者姓名： | 袁芳菊 杨胜忠 吴小璟 |
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| 作者单位： | 贵州省黔东南州气象局,贵州省黔东南州气象局,贵州施秉县气象局 |
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| 基金项目： | 贵州省气象局科研业务项目黔气科登[2021]11-14号：强降水对双江电站发电和防汛调度影响研究；黔东南州科技局项目黔东南科合J字[2021]76号：强降水对清水江流域水库调度和水灾隐患点的影响研究。 |
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| 摘 要： | 选用参证站资料的方法对黎平县双江电站水库1954—2021年近68 a来逐年最大日降水量采用Peason Ⅲ型研究方法和贵州省暴雨洪水计算公式进行研究得出：黎平双江电站水库年最大日降水量年变化呈上升趋势，2010年以后上升趋势较显著。暴雨洪水设计以 H=119.29 mm、Cv=0.47、Cs/Cv=3.5作为研究成果，防洪标准按50 a一遇的暴雨洪水设计成果为P=2.0% ，日最大降水量=277 mm、洪峰流量=2509 m3/s；洪水校核按500 a一遇的暴雨洪水设计成果为P=0.2 %，日最大降水量=391 mm和洪峰流量=3905 m3/s；消能防冲设计标准按30 a一遇的设计成果为即P=3.3 %，日最大降水量=252 mm和洪峰流量=2209 m3/s。研究成果对黎平双江电站水库预防灾害性强降水，安全渡汛和水库优化调度，提高产能具有十分重要的决策指导意义。
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| 关 键 词： | 水库、暴雨、洪水、PeasonⅢ型 |
| 收稿时间： | 2022/6/21 0:00:00 |
| 修稿时间： | 2022/9/13 0:00:00 |
Design rainstorm of Liping Shuangjiang Hydropower Station |
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| Authors: | Yuan Fangju Yang Shengzhong and Wu Xiaojing |
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| Institution: | Qiandongnan Meteorological Bureau,GuiZhou KaiLi 556000,Qiandongnan Meteorological Bureau,GuiZhou KaiLi 556000,ShiBing County Meteotological Bureau of Guizhou Province |
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| Abstract: | In this paper, the maximum daily precipitation of Shuangjiang Hydropower Station Reservoir in Liping County from 1954 to 2021 (nearly 68 years) is studied by using the method of reference station data, and the following conclusions are drawn through the Peason III research method and the calculation formula of heavy rain and flood in Guizhou Province: The annual change of the maximum daily precipitation in the Reservoir of Liping Shuangjiang Power Station showed an upward trend, and the upward trend was more significant after 2010.The rainstorm flood design takes H=119.29 mm, Cv=0.47, and Cs/Cv=3.5 as the research results. The flood control standard is a once-in-50a storm flood design result of P=2.0%, maximum daily precipitation=277mm, flood peak flow=2509 m3/s;The design result of the flood check is P=0.2%, the maximum daily precipitation=391mm and the flood peak flow=3905m3/s;The design standard of energy dissipation and anti-scouring is that the design result is P=3.3%, the maximum daily precipitation=252mm and the peak flow rate=2209m3/s.The research results have important decision-making and guiding significance for the prevention of catastrophic heavy precipitation, safe flood crossing, reservoir optimization and scheduling, and improvement of production capacity in Liping Shuangjiang Hydropower Station. |
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| Keywords: | hydropower station design storm Peason III |
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