Mechanism for Flood Peak Increase Downstream along the Lower Yellow River

被引：0

作者：

Jiang Enhui ^{[1
]}

Zhao Lianjun ^{[1
]}

Zhang Qing ^{[1
]}

机构：

[1] Yellow River Inst Hydraul Res, Zhengzhou 450003, Peoples R China

来源：

PROCEEDINGS OF THE 2ND INTERNATIONAL YELLOW RIVER FORUM ON KEEPING HEALTHY LIFE OF THE RIVER, VOL III | 2005年

关键词：

the Lower Yellow River; flood peak; increase; downstream; movable - bed resistance; additional gradient;

D O I：

暂无

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

The paper is intended to account for the abnormal phenomenon that a flood peak increases in the Lower Yellow River. The phenomenon has been found to occur several times in the past. There exists a hot controversy over the causes for it. In this paper, research results of the specific case, which happened in August 2004, are presented. After the mechanism for flood peak increase downstream is analyzed, it is concluded that the flood increase downstream is mainly contributed by sharp resistance reduction during high concentrated floods, which includes the reduction in movable - bed resistance and in resistance reduction made by the kind of floods, while additional gradient formed in flood rising period, the changes in the hydraulic factors caused by the forming of a narrow - deep channel, and overbank flow going back to the channel, contributed much less.

引用

页码：322 / 327

页数：6

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