彭水水电站设计洪水

Design flood of Pengshui hydropower station

乌江彭水水电站上游兴建了红枫、百花、乌江渡、东风等水电站,洪水分析必须对上游受水库调节的洪水进行还原计算。分析乌江流域的暴雨洪水特性,对历史洪水量级和重现期进行考证,加入受上游水库影响还原后的天然系列,分析计算天然坝址设计洪水和入库设计洪水。结合乌江流域的暴雨洪水特性,分析洪水地区组成,确定上游在建的骨干水库构皮滩水电站对彭水水电站设计洪水的影响程度,提出彭水水电站的设计洪水成果。

The storm flood features in Wujiang river basin are analyzed and the historical flood magnitude and recurrence period are textually investigated,with the consideration of the deducted natural flood series from the flood affected by upstream reservoir,the natural dam site design flood and reservoir inflow design flood are analyzed.In the combination of storm features in Wujiang river basin and flood regional composition,the influence of key hydropower station—Goupitan hydropower station under construction is determined and the design flood results are put forward.