黄河中游多沙粗沙区淤地坝对泥沙的分选作用
Yellow River(2007)
Abstract
利用坝地钻探取样资料,对黄河中游多沙粗沙区坝地淤积泥沙粒径的空间变化进行了分析,结果表明:淤地坝对泥沙具有分选作用,坝前泥沙粒径小于坝尾泥沙粒径;泥沙颗粒越粗,这种分选作用越明显。从而认为,在粗泥沙产沙区淤地坝能够起到一定的淤粗排细作用。
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Key words
the middle Yellow River,silt-laden and coarse sand region,warping dam,sediment grain size
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