| 点源渗流作用下泥沙起动试验研究 |
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| 引用本文： | 刘亮,何建新,侯杰,杨力行. 点源渗流作用下泥沙起动试验研究[J]. 水利与建筑工程学报, 2011, 9(2): 54-56 |
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| 作者姓名： | 刘亮 何建新 侯杰 杨力行 |
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| 作者单位： | 新疆农业大学水利与土木工程学院; |
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| 基金项目： | 新疆水利水电工程重点学科基金项目(XJZDXK-2002-10-05); 新疆维吾尔自治区高校科研计划重点项目(XJEDU2010I20); 新疆农业大学校内前期课题资助项目(XJAU200933) |
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| 摘 要： | 通过自行设计试验装置,完成不同粒径原型沙在不同渗透力下的泥沙起动流速试验.结果表明:随着渗透力的增大,起动流速有下降趋势;在相同的渗透力下,粒径越大,泥沙起动流速下降的绝对值幅度越大;其原理是渗透力使泥沙颗粒产生部分失重,导致泥沙的等效密度下降,最终使泥沙起动流速下降.为渗透力起动泥沙在水流拖曳力作用下高效输送泥沙提供...
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| 关 键 词： | 渗流力 均匀沙 起动流速 |
Experimental Study on Incipient Vilocity of Sediment Subject to Point Source Seepage |
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| LIU Liang,HE Jian-xin,HOU Jie,YANG Li-xing. Experimental Study on Incipient Vilocity of Sediment Subject to Point Source Seepage[J]. Journal of Water Resources Architectural Engineering, 2011, 9(2): 54-56 |
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| Authors: | LIU Liang HE Jian-xin HOU Jie YANG Li-xing |
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| Affiliation: | LIU Liang,HE Jian-xin,HOU Jie,YANG Li-xing(College of Water Conservancy and Civil Engineering,Xinjiang Agricultural University,Wulumuqi,Xinjiang 830052,China) |
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| Abstract: | The experiments on incipient velocity of different-sized prototype sand under different penetration of sediment were completed by a self-designed test equipment.The results show that as the penetration increases,the incipient velocity show a decreasing tendency.Under the same penetration,the larger the particle diameter is,the more is the amplitude of the absolute value of incipient velocity decreasing.The principle is that some of the sediment particles in weightlessness would lead to the decrescence of th... |
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| Keywords: | seepage force uniform sediment incipient velocity |
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