| 黄河中游多沙粗沙区淤地坝对泥沙的分选作用 |
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| 引用本文： | 左仲国,陈鸿,王笑冰,徐建华.黄河中游多沙粗沙区淤地坝对泥沙的分选作用[J].人民黄河,2007,29(2):64-65. |
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| 作者姓名： | 左仲国 陈鸿 王笑冰 徐建华 |
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| 作者单位： | 黄河水利科学研究院,河南,郑州,450003;黄河水利委员会,水文局,河南,郑州,450004 |
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| 基金项目： | 黄河水利委员会科研基金 |
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| 摘 要： | 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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| 关 键 词： | 泥沙粒径 分选作用 淤地坝 多沙粗沙区 黄河中游 |
| 文章编号： | 1000-1379（2007）02-0064-02 |
| 收稿时间： | 2006-04-24 |
| 修稿时间： | 2006-04-24 |
Effect of Warping Dams in Silt-Laden and Coarse Sand Region of the Middle Yellow River to Sediment Grading |
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| ZUO Zhong-guo,CHEN Hong,WANG Xiao-bing,XU Jian-hua.Effect of Warping Dams in Silt-Laden and Coarse Sand Region of the Middle Yellow River to Sediment Grading[J].Yellow River,2007,29(2):64-65. |
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| Authors: | ZUO Zhong-guo CHEN Hong WANG Xiao-bing XU Jian-hua |
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| Affiliation: | ZUO Zhong-guo1,CHEN Hong2,WANG Xiao-bing1,XU Jian-hua2 |
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| Abstract: | The paper analyzes the temporal variation of sediment grain size of dammed land of silt-laden and coarse sand region in the middle Yellow River by using boring sampling data of dammed land.The outcomes show that the warping dam has grading function of sediment and the sediment grain size before dam is smaller than that of dam tail and;the coarser the sediment grain size,the clearer the grading function will be.Thus,it considers that warping dams situated in coarse sand producing region can have a certain function of silting coarse sand and discharging the fine. |
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| Keywords: | sediment grain size warping dam silt-laden and coarse sand region the middle Yellow River |
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