双曲拱坝溢流表孔分流齿的水力特性与设计原则  

Hydraulic Characteristics and Design Principle of Flow Separating Dentated Sill for Surface Spillway of Double-curvature Arch Dam

作　　者：姜信河 

机构地区：[1]能源部,水利部成都勘测设计研究院,成都610072

出　　处：《水电站设计》1993年第4期70-74,共5页Design of Hydroelectric Power Station

摘　　要：结合二滩双曲拱坝,简要地介绍了拱坝坝顶滥流表孔设置分流齿的选型、布置及其消能、空化、通气减蚀、水流脉动荷载和泄洪振动等水力特性。研究表明,在俯角跌坎式表孔上设分流齿可以提高表孔的泄洪消能效果。In the light of Ertan Double —curvature Arch Dam,the type selecting and layout of flow separating dentated sill set up in surface spillway on top of arch dam and the hydraulic characteristics such as energy dissipation, hollow phenomenon, aeration for reducting cavitation, flow pulse load and flood release vibration. The study indicates that setting up flow separating dentated sill in surface spillway of slotted bucket type with depression angle may heighten flood release energy dissipation effect of surface spillway.

关 键 词：拱坝 溢流表孔 消能建筑物 

分 类 号：TV642.42[水利工程—水利水电工程]