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1977年7、8月黄河下游出现了历史上少有的两场高含沙量洪水,在花园口以上河段发生了一些新问题,引起各方面的重视与关注。各家提出了不同的看法,正确地认识它的特性,对黄河下游河道的防洪与治理都十分重要。本文根据实测资料和高含沙水流特性,综合分析了下游河道洪水位发生异常现象的原因,并讨论了高含沙洪水在黄河下游的输移特性。
In July and August 1977, there were two rare floods of high sediment concentration in the lower reaches of the Yellow River. Some new problems occurred above the mouth of Huayuankou, arousing great attention and attention from all quarters. Different opinions are put forward by different quarters, and correctly understanding its characteristics is very important for the flood control and harnessing of the lower Yellow River. Based on the measured data and the characteristics of high sediment flow, this paper analyzes the reasons of the anomalous flood in the lower reaches of the lower reaches of the Yellow River, and discusses the transport characteristics of high silt flood in the lower reaches of the Yellow River.