卡基娃水电站导流洞出口消能研究  

Dissipation Measures for the Diversion Tunnel Outlet in Kajiwa Power Station

作　　者：涂小飞 魏丽琴 TU Xiaofei;WEI Liqin(Chengdu Engineering Corporation Limited, Chengdu 610072, China)

机构地区：[1]中国电建集团成都勘测设计研究院有限公司,四川省成都市610072

出　　处：《水电与抽水蓄能》2018年第3期72-75,60,共5页Hydropower and Pumped Storage

摘　　要：为避免导流洞出口水流对卡基娃滑坡及下游岸坡的冲刷,对导流洞出口消能措施进行了研究。通过水工模型试验,测定导流洞出口在不同工况下对下游河床及滑坡体坡脚冲刷情况(岸边流速、最大冲刷深度及冲刷范围);根据试验分析结果,提出了导流洞出口体形优化建议,最终采用导流洞出口设置1.5m高消力坎并结合右岸泄洪洞出口施工进行右岸提前扩挖消能方案。该研究对于减小导流洞出口对下游冲刷具有重要的指导和验证意义。To avoid the scouring problem of Kajiwa landslide and downstream river bank caused by the flow,energy dissipation measures of the diversion tunnel outlet have been studied.Scouring results on different working conditions have been measured by hydraulic model test,including velocity of the flow,the maximum scour depth and the scour range.According to the results of the test,optimization proposal of the diversion tunnel outlet has been put forward.A stilling of 1.5 meters high and earlier expanding excavation on the right bank are suggested.This study has important guiding and verifying significance to the dissipation problem at the diversion tunnel outlet.

关 键 词：导流洞出口 滑坡 冲刷深度 消能措施 河道防护 岸边流速 

分 类 号：TV73[水利工程—水利水电工程]