| 粘性泥沙成团起动后状态转移规律试验 |
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| 引用本文： | 蒋磊,谈广鸣.粘性泥沙成团起动后状态转移规律试验[J].武汉大学学报(工学版),2013,46(1):6-9. |
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| 作者姓名： | 蒋磊 谈广鸣 |
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| 作者单位： | 1. 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;长江水利委员会勘测规划设计研究院,湖北武汉430014
2. 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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| 基金项目： | 国家自然科学基金项目(编号:50679064) |
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| 摘 要： | 粘性泥沙与散粒体泥沙一样存在推移质与悬移质两种不同的运动状态,且在2种状态间存在相互转化.粘性泥沙的状态转移规律较散粒体泥沙更为复杂,为研究粘性泥沙的状态转移规律,设计制造了一套封闭矩形管道系统进行试验.试验现象表明,粘性泥沙的起动往往是以成团的方式进行;试验结果说明,在统计规律上,粘性泥沙成团起动后进入悬浮的比例等于起悬概率.并与散粒体泥沙的理论转移概率进行比较分析,结果指出,粘性泥沙成团运动服从于一般泥沙的状态转移规律.
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| 关 键 词： | 粘性泥沙 成团 状态转移 试验研究 |
Experimental study of law of state transition of aggegated cohesive sediment |
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| JIANG Lei,TAN Guangming.Experimental study of law of state transition of aggegated cohesive sediment[J].Engineering Journal of Wuhan University,2013,46(1):6-9. |
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| Authors: | JIANG Lei TAN Guangming |
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| Affiliation: | 1(1.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University, Wuhan 430072,China;2.Changjiang Water Resources Commission Changjiang Institute of Survey, Planning,Design and Research,Wuhan 430014,China) |
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| Abstract: | The two schemes of sediment transportation,namely bedload and suspended load,exist not only in cohesionless sediments but also in cohesive sediments.By a specified flume system,the law of state transition of aggregated cohesive sediment is experimentally studied.The test results,along with the theoretical values of cohesionless sediment,reveal that cohesive sediment obeys the state transition law of the ordinary sediments. |
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| Keywords: | cohesive sediment flocculation state transition experimental study |
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