黄河下游河道输沙水量的计算方法及应用  

Calculation and application of sediment-carrying water volume in the lower Yellow River

作　　者：严军[1] 胡春宏[1] 

机构地区：[1]中国水利水电科学研究院泥沙所,北京100044

出　　处：《泥沙研究》2004年第4期25-32,共8页Journal of Sediment Research

基　　金：国家自然科学基金重点项目 (5 0 2 3 90 40 );国家重点基础研究发展规划项目(G19990 43 60 4)资助

摘　　要：本文在以往输沙水量研究成果的基础上 ,从输沙机理分析着手 ,根据河道输水输沙实际过程 ,剖析径流量中各部分水量在泥沙输移中的作用 ,引入净水量的概念 ,提出了输沙水量和单位输沙水量的定义及其计算方法 ,根据 195 0～ 2 0 0 0年黄河下游河道实测水沙资料 ,计算了 195 0～ 2 0 0 0年三门峡水库运用不同时期黄河下游河道输沙水量与单位输沙水量的变化过程 ,分析了输沙水量和单位输沙水量与径流量、输沙量、流量、含沙量、冲淤量、来沙系数等因素的关系 。Based on previous research, the function of every part in the whole water volume to transport sediment has been analyzed from the sediment carrying mechanism according to the real process of sediment carrying in the channel. Apart from the net water volume, the new concept and calculating method of sediment carrying water volume have been put forward. According to the field data of sediment and water volume in the lower Yellow River from 1950 to 2000, the sediment carrying water volume and unit sediment carrying water volume in the lower Yellow River have been calculated. Meanwhile, the relation between them and their influence factor, such as volume of runoff and sand, discharge volume, sand concentration, erosion and deposition, etc., has been confirmed. Finally the equation to express the relation between the unit sediment carrying water volume and sand concentration has been stated.

关 键 词：黄河下游 输沙量 输沙水量 单位输沙水量 

分 类 号：TV143[水利工程—水力学及河流动力学]