多泥沙条件下的底栏栅式渠首布置研究综述  

Research summary on grated-bottom canal headworks under condition of heavy sediment

作　　者：王梦云 Wang Mengyun

机构地区：[1]新疆水利管理总站,新疆乌鲁木齐830000

出　　处：《吉林水利》2021年第3期10-12,共3页Jilin Water Resources

摘　　要：底栏栅式渠首经过大量工程实践证明能有效防止大粒径泥沙进入渠道,是一种结构简单,造价低廉,管理方便的低水头引水枢纽建筑物。现阶段关于渠首底栏栅工程实践与研究表明:①底栏栅式渠首相对于其他渠首引水流量偏小,引水流量均在40m^(3)/s以下;②细颗粒泥沙进入渠道问题仍未解决,还需要在渠道下游设置二级泥沙处理设施;③引水防沙研究停留在依靠工程经验和模型试验阶段,利用数值模拟方法研究较少。Through a large number of engineering practice,the grated-bottom canal has been proved to be effective in preventing the entering of large-sized sediment,and it is a type of water diversion hub with low water head,simple structure,lower costs and convenient management.Current research on grated-bottom canal headworks shows that:(1)the diversion flow of grated-bottom canal head work is smaller than the others,with an average value of 40m^(3)/s or below;(2)the problem of fine sediment entering the canal has not been solved and still need to set up a secondary sediment treatment facility in the downstream of the canal;(3)the research on water diversion and sediment prevention depends on engineering experience and model test,and there is little research by numerical simulation method.

关 键 词：渠首 底栏栅 引水防沙 布置型式 

分 类 号：TV67[水利工程—水利水电工程]