泾河与渭河高含沙洪水特性及水流挟沙力研究  

Characteristics and sediment carrying capacity of the hyperconcentrated floods in the Jing River and Wei River

作　　者：冯普林 李茜 曹绮欣 张琳琳 FENG Pu-lin;LI Qian;CAO Qi-xin;ZHANG Lin-lin(Shaanxi River Engineering Technology Research Center,Xi'an 710018,China)

机构地区：[1]陕西省河流工程技术研究中心,陕西西安710021

出　　处：《泥沙研究》2021年第4期8-14,共7页Journal of Sediment Research

基　　金：陕西省技术转移与重点科技成果推广计划项目(2016CG-05);陕西省自然科学基础研究计划面上项目(2014JM7281);陕西省水利科技计划项目(2013slkj-24)。

摘　　要：泾河与渭河高含沙洪水是黄河泥沙的重要来源,通过实测资料统计与挟沙力影响因子分析,对泾河与渭河下游的三个主要控制站高含沙洪水的物质组成、运动特性和挟沙力公式进行了探索,结合相关理论分析成果对其运动模式和挟沙机理进行了初步分析,建立了同时适用于高、低含沙水流且量纲和谐的挟沙力公式,并提出了减轻漫滩淤积或高含沙小洪水河槽贴边淤积造成渭河下游滩面抬升和河槽萎缩的减淤措施建议。Hyperconcentrated floods in the Jing River and Wei River were the important source and special component of sediment in the Yellow River.To study the sediment carrying characteristics of the hyperconcentrated flood and the sediment reduction measures in the Jing River and Wei River,the material composition,movement characteristics of the hyperconcentrated floods and the sediment carrying capability formula were conducted,which was based on data from three hydrographic stations in the Jing River and Wei River.The sediment movement pattern and carrying mechanism were studied.Sediment carrying capability formula was established which could be applied to the high and low sediment flows.

关 键 词：高含沙洪水 洪水特性 水流挟沙力 悬移质 泾河与渭河下游 

分 类 号：TV143.6[水利工程—水力学及河流动力学]