水库下游悬移质泥沙沿程恢复研究进展  

Research Advances in Recovery of Suspended Sediment Concentration Downstream of a Reservoir

作　　者：贺方舟 朱勇辉[1] 郭小虎[1] 陈栋[1] 

机构地区：[1]长江科学院水利部江湖治理与防洪重点实验室,武汉430010 [2]湖南省水利水电勘测设计研究总院,长沙410007

出　　处：《长江科学院院报》2017年第12期1-6,共6页Journal of Changjiang River Scientific Research Institute

基　　金：国家重点研发计划项目(2016YFC0402305);国家自然科学基金重点项目(51339001);国家自然科学基金青年科学基金项目(51609011);水利部公益性行业科研专项经费项目(201401011);中央级公益性科研院所基本科研业务费项目(CKSF2017041/HL;CKSF2016268/HL);"十二五"国家科技支撑计划课题(2013BAB12B02)

摘　　要：水库下游悬移质泥沙沿程恢复是河流泥沙动力学研究的难点问题之一。对该问题的研究有助于推动学科发展,解决工程实践中的有关问题。针对此现状,归纳总结了平衡及不平衡输沙条件下悬移质浓度垂线分布、悬移质沿程恢复的天然河道实测资料分析和恢复饱和系数等方面的研究成果,认为在不平衡输沙条件下悬移质泥沙垂线分布研究及实测数据的获取、分析等方面还存在一定的不足。在此基础上,提出有必要进一步开展水库下游悬移质泥沙沿程恢复研究,特别是利用精准的测量仪器,开展科学合理、系统全面的水槽试验是丰富该研究成果的必要手段。Recovery of suspended sediment concentration along the river downstream of reservoir is a core subject in river dynamics research. The research in this area helps to push the advances of river dynamics and solve problems in engineering application. In this article,the research achievements of vertical distribution of sediment concentration under equilibrium and non-equilibrium transport conditions are summarized. The observed data of suspended sediment concentration recovery along natural channels and the research results of recovery saturation coefficient are also concluded. Research on vertical distribution of sediment concentration under non-equilibrium state is still defective. The methods of observed data acquisition and data analysis also need to be improved. Finally,scientific and systematic flume experiments with accurate measuring instruments should be conducted in further studies.

关 键 词：悬移质泥沙 不平衡输沙 悬移质浓度垂线分布 恢复饱和系数 研究进展 

分 类 号：TV142.3[水利工程—水力学及河流动力学]