| 无粘性泥沙起动条件对比研究 |
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| 引用本文： | 聂锐华,刘兴年,曹叔尤,李莉.无粘性泥沙起动条件对比研究[J].水科学进展,2004,15(5):584-587. |
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| 作者姓名： | 聂锐华 刘兴年 曹叔尤 李莉 |
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| 作者单位： | 1.四川大学高速水力学国家重点实验室, 四川, 成都, 610065; |
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| 基金项目： | 国家重点基础研究发展计划(973)资助项目(2003CB415202)，教育部博士点基金资助项目(2002 173)~~ |
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| 摘 要： | 从泥沙起动的已有研究成果出发,推导出常见的3种泥沙起动条件的转换关系.利用这些关系,将国内外现有的几十种泥沙起动条件进行了统一,可得各种公式的K值一般在337～786之间.为合理选用起动公式提供了依据.在此基础上,用韩其为1965年在岷江五通桥茫溪河进行的卵石起动的野外水槽试验资料与一部分经典公式计算结果进行了对比研究.为岷江都江堰河段合理选用卵石起动公式提供了依据.
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| 关 键 词： | 无粘性泥沙 泥沙起动 起动条件 对比研究 |
| 文章编号： | 1001-6791(2004)05-0584-04 |
| 收稿时间： | 2003-07-08 |
| 修稿时间： | 2003年7月8日 |
Comparison study on incipient motion conditions for cohesionless sediment |
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| NIE Rui-hua,LIU Xing-nian,CAO Shu-you,LI Li hengdu ,China, .Agriculture and Water Conservancy Bureau of Sichuan Province,Chengdu ,China.Comparison study on incipient motion conditions for cohesionless sediment[J].Advances in Water Science,2004,15(5):584-587. |
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| Authors: | NIE Rui-hua LIU Xing-nian CAO Shu-you LI Li hengdu China Agriculture and Water Conservancy Bureau of Sichuan Province Chengdu China |
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| Institution: | 1.State Key Hydraulics Laboratory of High Speed Flow of Sichuan University, Chengdu 610065, China;2.Agriculture and Water Conservancy Bureau of Sichuan Province, Chengdu 610013, China |
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| Abstract: | According to some previous results, the relationships among three common incipient motion conditions are deduced. Considering these relationships, dozens of incipient motion conditions are united, and K of all kinds of formulas is otained commonly from 3.37 to 7.86. This result is helpful to select appropriate incipient equation. Based on this research, the comparison study is made between pebble factual data in outdoors flume of Hanqiwei in Minjiang, 1965, and calculation results of parts of classic formulas. This result is also useful to select appropriate incipient equation in Dujiangyan, Minjiang. |
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| Keywords: | cohesionless sediment sediment incipient incipient motion conditions comparison study |
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