摘要
喜河坝址以上流域洪水由暴雨形成,流域暴雨量大,强度集中,洪水汇流速度快.根据区域暴雨洪水特性,参考历史洪水记载及调查成果,采用皮尔逊Ⅲ型曲线计算设计洪水,并采用同频率组成法及典型年组成法进行设计洪水地区组成。
The floods upstream of Xihe hydropower station come from rainfall, with the feature of high velocity of flow concentration because the rainfall with high intensity and large quantity. Based on these features and in reference to historical flood record and investigation, the method of Person-Ⅲ distribution curve was adopted for estimation of design flood, and the group frequency method and typical yearly method were combined to estimate the flood regional composition.
作者
李晓伟
王宏声
LI Xiao-wei, WANG Hong-sheng （Beijing Survey and Design Institute, Division of Planning and Design, Beijing 100024, China）
出处
《西北水力发电》
2007年第3期20-23,共4页
Journal of Northwest Hydroelectric Power
关键词
暴雨
重现期
设计洪水
地区组成
喜河水电站
storm rainfall
return period
design flood
regional composition
the Xihe hydropower station
