无坝引水工程闸前泥沙淤积分析  

Study on Sedimentation Upstream from the Intake Sluice of Diversion Water Project without Dam

作　　者：杨纪伟[1] 李静[1] 王志国[1] 谢利云 

机构地区：[1]河北工程大学水电学院,邯郸056001 [2]华北水利水电大学,郑州450011

出　　处：《科学技术与工程》2015年第2期290-293,共4页Science Technology and Engineering

基　　金：河北工程大学学位应建设项目(14964206D)资助

摘　　要：为了研究取水闸前泥沙淤积和闸前河床的边界条件之间的关系,对新疆某无坝引水工程进行了动床河工模型试验,研究发现在取水闸前有严重的泥沙淤积现象。从河床演变角度进行分析,闸前泥沙淤积严重主要是由于在取水口前进行人工取直,致使河床边界条件由弯曲型向顺直型改变,以及闸前流速的减小。这一研究结果对泥沙淤积问题有一定借鉴意义。In order to study the relationship between the sedimentation and the boundary conditions of riverbed upstream from the intake sluice, the mobile bed experiment has been conducted to a diversion water project without dam in Xinjiang, and it is found that the sedimentation was very serious upstream from the intake sluice. Its reasons form the perspective of fluvial process is analyzed, and the results show that the sedimentation is mainly due to the changing of boundary conditions of riverbed from a curved one to a straight one, the reduction of flow velocity as well as the continuous supply of sediment upstream from the intake sluice. The research results have certain prob- lems of sedimentation reference.

关 键 词：无坝引水 动床试验 河道演变 闸前淤积 原因分析 

分 类 号：TV697.22[水利工程—水利水电工程]