旭龙水电站泄洪消能设计研究  

Research and design of flood discharge and energy dissipation for Xulong Hydropower Station

作　　者：杨晓红 黄红飞 王维浩 YANG Xiaohong;HUANG Hongfei;WANG Weihao(Changjiang Survey,Planning,Design and Research Co.,Ltd.,Wuhan 430010,China;National Dam Safety Research Center,Wuhan 430010,China)

机构地区：[1]长江勘测规划设计研究有限责任公司,湖北武汉430010 [2]国家大坝安全工程技术研究中心,湖北武汉430010

出　　处：《水利水电快报》2024年第5期43-48,55,共7页Express Water Resources & Hydropower Information

摘　　要：为了研究高地震烈度区特高拱坝设计采用全坝身泄洪的可行性,以旭龙水电站特高拱坝为例,对泄洪消能布置、水力指标、坝身孔口布置方式、体型以及孔口结构抗震影响等方面进行研究和综合比选后,推荐采用全坝身3表孔加4中孔泄洪、下游反拱水垫塘消能方案。研究表明:合适的坝身孔口布置体型可保障泄洪消能安全与减轻岸坡泄洪雾化,反拱水垫塘安全性和经济性较好,孔口结构对坝体整体极限抗震性能无影响,高地震烈度区特高拱坝设计采用全坝身泄洪是可行的。研究成果可为类似工程泄洪消能建筑物设计提供参考。In order to study the feasibility of all flood discharge with orifice on dam body of super high arch dams in high seismic intensity areas,we took the Xulong Super High Arch Dam as an example,the layout pattern of flood discharge and energy dissipation,hydraulic indicators,orifice layout shape on dam body,and seismic impact of orifice structure had been studied.After comprehensive comparison,all flood discharge with orifice on dam body with three overflow spillways and four middle holes and inverted-arch bottom plunge pool were adopted.Research had shown that a suitable arrangement of dam body orifice shapes can balance the safety of flood discharge and reduce the atomization of flood discharge.The safety and economy of inverted-arch bottom plunge pool were good.The orifice structure had no effect on the overall ultimate seismic performance of the dam body.It is feasible that all flood discharge with orifice on super high arch dam body in high seismic intensity areas.The research results can provide a reference for the design of flood discharge and energy dissipation buildings in similar projects.

关 键 词：全坝身泄洪 特高拱坝 孔口抗震影响 反拱水垫塘 数值计算 模型试验 旭龙水电站 

分 类 号：TV652[水利工程—水利水电工程]