The production of this paper can provide the basis for the design and the construction of Yellow River Rail-Road Bridge in Zhengzhou and provide references for other model test.

本文的研究成果为郑州黄河公铁两用大桥设计、施工提供了依据，对其他模型试验也有参考价值。

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With the model test, this paper researches overbank flood sediment concentration and its gradation change rules from Jahe beach to Gao village river section of lower Yellow River.

通过模型试验，研究了黄河下游夹河滩到高村断面河段漫滩洪水含沙量及颗粒级配的沿程变化规律。

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