人民黄河Issue(12)：1-3,7,4.DOI:10.3969/j.issn.1000-1379.2013.12.001
改造黄河下游游荡型河道可能性的思考
Possibility for Meandering Reach Modification of the Lower Yellow River
韩其为1
作者信息
- 1. 中国水利水电科学研究院，北京100048
- 折叠
摘要
Abstract
Based on the theory of fluvial process and experience of sedimentation engineering the four conditions for forming meandering reach was analyzed firstly in this paper,those were:aggradations of river reach;large slope;wide and shallow cross section with small difference of height be-tween bank and channel;and large variation of flow discharge caused by flush flood and fall. According to the measured data from 1960 to 1964 at the reach from Tiexie to Peiyu downstream of Sanmenxia Reservoir at the Yellow River the meandering reach was disappeared. Moreover some local meandering braided reach downstream the Danjiangkou Reservoir at the Hanjiang River had the tendency to turn to single river channel. In order to change the meandering pattern of large scale reach of the Yellow River the paper presented the main measures to be adopted,including constructing the Guxian Reservoir and Qikou Reservoir to complete engineering projects for control flow and sediment discharge;regulating flow and sediment discharge in a large scale to keep the downstream river reach out of deposition and avoiding the flush flood and fall;decreasing slope to keep the section narrow and deep,enlarging the difference between bank and channel and stabilizing the main channel. In addition to the other methods the meandering pattern of lower Yellow River might die away. In the end the paper also pointed out the difficulty for eliminating meandering pattern.关键词
边界条件/平滩流量/调水调沙/河道改造/游荡型河段/黄河下游Key words
regulation of flow and sediment discharge/bank-full discharge/river course modification/meandering reach/Lower Yellow River分类
建筑与水利引用本文复制引用
韩其为..改造黄河下游游荡型河道可能性的思考[J].人民黄河,2013,(12):1-3,7,4.
