考虑水力特性的洞式溢洪洞内消能工研究  

Research on Energy Dissipation in Tunnel Spillways Considering Hydraulic Characteristics

作　　者：杨斌葛 YANG Binge(Wangmo Water Affairs Bureau,Wangmo 552300,China)

机构地区：[1]望谟县水务局,贵州望谟552300

出　　处：《中国水能及电气化》2024年第9期57-61,共5页China Water Power & Electrification

摘　　要：为解决洞式溢洪洞内的水流能量过高,容易对洞身和下游河道造成冲刷破坏的问题,在考虑水力特性的条件下对洞式溢洪洞内消能工展开研究。获取洞式溢洪洞内的水位、流量、流速、压强等水力特性参数,布置台阶式泄洪槽消能工结构,实现洞式溢洪洞内消能设计。结果表明,文章设计的消能工结构溢洪洞内的水面线沿程分布变化幅度、水流流速及水流压强均相对较小,具有良好的消能效果。To address the issue of excessive energy in the flow within tunnel spillways,which can easily cause erosion and damage to the tunnel body and downstream river channels,a study was conducted on energy dissipation structures within tunnel spillways,taking into account hydraulic characteristics.Hydraulic parameters such as water level,flow rate,flow velocity,and pressure within the tunnel spillway were obtained.A stepped spillway structure was designed for energy dissipation within the tunnel spillway.The results indicate that the energy dissipation structure designed in this study exhibits relatively small variations in the water surface profile,flow velocity,and flow pressure along the tunnel spillway,demonstrating good energy dissipation performance.

关 键 词：水力特性 洞式溢洪洞 消能工 水面线 流速 压强 

分 类 号：TV135.2[水利工程—水力学及河流动力学]