| 泥沙干容重计算的新途径 |
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| 引用本文： | 詹义正,黄长伟,余明辉,陆晶,石雨亮. 泥沙干容重计算的新途径[J]. 泥沙研究, 2007, 0(5): 48-53 |
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| 作者姓名： | 詹义正 黄长伟 余明辉 陆晶 石雨亮 |
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| 作者单位： | 武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072;武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072;武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072;武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072;武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072 |
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| 摘 要： | 分析了干容重的主要影响因素，指出浆体的极限浓度是影响干容重的重要指标之一。沿用浑水容重与含沙浓度间的变化规律，建立了干容重与床面泥沙的含泥浓度间的关系；并将含泥浓度与浆体极限浓度有机地联系起来，从而获得了包含有泥沙粒径、级配及形状等因素在内的非均匀泥沙干容重的计算公式。验证计算表明，公式计算结果与实测资料基本一致。
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| 关 键 词： | 干容重 含沙浓度 含泥浓度 极限浓度 |
| 文章编号： | 0468-155X（2007）05-0048-06 |
| 修稿时间： | 2006-03-01 |
New method to calculate sediment dry density |
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| ZHAN Yi-zheng,HUANG Chang-wei,YU Ming-hui,LU Jing,SHI Yu-liang. New method to calculate sediment dry density[J]. Journal of Sediment Research, 2007, 0(5): 48-53 |
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| Authors: | ZHAN Yi-zheng HUANG Chang-wei YU Ming-hui LU Jing SHI Yu-liang |
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| Affiliation: | State Key Lab. of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China |
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| Abstract: | In this paper, the main factors influencing sediment dry density were analyzed,and it was pointed out that the limit concentration of slurry is one of the important indexes affecting sediment dry density. Based on the relation of the turbid density and sediment concentration, the relationship between the sediment dry density and the concentration of slurry was established. Therefore, a formula to calculate the dry density of non-uniform sediment was obtained with consideration of such factors as sediment diameter, size gradation and non-uniformity. The calculated dry density by the proposed formula agreed with the measured data well. |
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| Keywords: | dry density sediment concentration mud concentration limit concentration |
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