某高拱坝放水底孔坝内埋管设计  

Design of Bottom Outlet Embedded Penstock in a High Arch Dam

作　　者：胡剑超 牛智勇 HU Jianchao;NIU Zhiyong(China Water Resources Beifang Investigation,Design and Research Co.Ltd.,Tianjin 300222)

机构地区：[1]中水北方勘测设计研究有限责任公司,天津300222

出　　处：《水利水电工程设计》2025年第2期26-28,共3页Design of Water Resources & Hydroelectric Engineering

摘　　要：某高拱坝放水底孔采用坝内埋管,承担辅助泄洪及泄放生态流量的任务,出口采用锥阀控泄流量,具有放水振动小、出口高程低、泄洪消能雾化少等优点。通过坝内埋管结构计算,钢衬结构满足规范要求,目前该放水钢管已完成现场施工,可为相关工程的坝内埋管设计提供借鉴和参考。An embedded penstock in a high arch dam is installed at the bottom outlet to facilitate auxiliary flood discharge and ecological flow release.The outlet is equipped with a cone valve for flow regulation,offering advantages such as low operational vibration,reduced outlet elevation,and minimal energy dissipation and atomization during flood discharge.Structural analysis for the embedded pipe confirmed that the steel lining meets all relevant standards.The on-site construction of the penstock has been successfully completed,providing practical guidance and a valuable reference for the design of embedded penstock in similar projects.

关 键 词：拱坝 坝内埋管 结构设计 

分 类 号：TV732[水利工程—水利水电工程]