摘要
通过还原、还现计算,将潼关站、花园口站不同时期的洪水资料系列统一处理成现状水平,从洪水发生频次、发生时间、组成、含沙量等方面分析了现状工程情况下黄河中下游洪水泥沙特性。结果表明:现状工程情况下,花园口站4 000 m3/s以上洪水年均发生2次;洪水发生时间仍集中在7—8月,9—10月次之;潼关站洪量占花园口站洪量的比例随着洪水量级的增大而减小;高含沙洪水比例增大,潼关站6 000 m3/s以上洪水绝大部分为高含沙洪水。
By converting data to under the natural or current conditions, the hydrographs under current project conditions at the Huayuankou and Tongguan stations were obtained from data during different periods in this study. And flood and sediment characteristics of the middle and lower Yellow River under current project conditions were analyzed, including the occurring frequencies, the occurring periods, the composition, and the sediment concentration and so on. The results show that ： under current projects conditions, floods occur twice a year with the peak flow at the Hua- yuankou Station above 4 000 m3/s; most floods occur mainly in July and August, and September and October take second place; the higher the magnitudes of floods, the lower the ratio of the water volume at the Tongguan Station to that at the Huayuankou Station ; the proportion of hypercon- centrated sediments floods increases, and most of floods at the Tongguan Station with the peak flow above 6 000 m3/s are hyperconcentrated.
出处
《人民黄河》
CAS
北大核心
2012年第12期9-11,共3页
Yellow River
关键词
洪水特性
泥沙特性
现状工程条件
潼关
花园口
黄河中下游
flood characteristics
sediment characteristics
current project conditions
Tongguan
Huayuankou
middle and lower Yellow River
