黄河下游河床边界条件变化对河道冲淤影响计算研究  

Influence of boundary condition change on river bed evolution in the lower Yellow River

作　　者：赵连军[1] 韦直林[1] 谈广鸣[1] 江恩惠[2] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072 [2]黄河水利科学研究院,河南郑州450003

出　　处：《泥沙研究》2005年第3期17-23,共7页Journal of Sediment Research

基　　金：国家自然科学基金项目(50239040)

摘　　要：本文采用通过系统验证的黄河下游准二维泥沙数学模型,以2000年汛后地形为初始边界条件,对1960年～1962年实测来水来沙过程可能发生的黄河下游河道冲淤情况进行了模拟计算。计算结果与1960年～1962年实测值对比,发现两者表现出的河道冲淤量及冲淤沿程分布有明显的差异,本文对其原因进行了详细分析。该研究成果可为黄河下游河道整治及小浪底水库运用方式研究提供参考。Based on the systematical validation of the quasi_2D mathematic model in the lower Yellow River, taking the topographic data after the flood in 2000 as initial boundary condition,and according to the discharge and sediment series from 1960 to 1962,the river bed variation process was simulated.The amount and distribution of scouring and deposition along the riverbed was compared between the calculated result and the observed.The result shows there are obvious difference between them.The reason was also analyzed.This study provides a reference to the regulation of the lower Yellow River and the operation mode of the Xiaolangdi Reservoir.

关 键 词：黄河下游 边界条件 河道冲刷 数学模型 

分 类 号：TV14[水利工程—水力学及河流动力学]