大源渡枢纽泄水闸堰前冲沙减淤试验研究  

Flushing sedimentation reduction experiments about Dayuandu junction discharge sluice before weir

作　　者：刘晓平[1] 周小玲[1] 赵江[1] 任启明[1] 黄琼[1] 谭威[1] 扈世龙[1] 

机构地区：[1]长沙理工大学水利工程学院,湖南长沙410004

出　　处：《交通科学与工程》2013年第3期54-57,共4页Journal of Transport Science and Engineering

基　　金：湖南省交通科技项目(201027)

摘　　要：针对大源渡航电枢纽泄水闸堰前淤积导致的检修闸门不能正常使用这一问题,采用运行调度冲沙试验,分析泄水闸堰前冲沙效果,从而得出合理的冲沙减淤措施.试验结果表明:该枢纽实际运行过程中,通过泄水闸运行调度冲沙的方法,能够有效减少粒径小于4cm推移质泥沙引起的淤积;且隔孔开启泄水闸方式的冲沙效果比连续开启泄水闸方式的冲沙效果更好.Because of bulkhead gates cannot be used properly, which was caused by the siltation in front of the sluice weir of Dayuandu Navigation-power junction, the control and sand-washing test was adopted to analyze the sand-washing effect in front of the sluice weir,thus the reasonable measure of sand-washing and deposition reduction was obtained. Test results show that in the process of actual operation of this hub, through the method of control and sand-washing of discharge sluice, deposition caused by bedload sediment whose particle size is smaller than four centimeters can be reduced effectively, and sand-washing effect of septal pore opening sluice method is better than the continu- ous opening sluice method.

关 键 词：泄水闸 堰前淤积 模型试验 冲沙效果 减淤措施 

分 类 号：U617.6[交通运输工程—船舶及航道工程]