肋形溢流坝与挑流水垫塘研究  

Study on Ribbon-type Overflow Dam and Ski-jump Plunge Pool

作　　者：崔广涛[1] 杨敏[1] 

机构地区：[1]天津大学建筑工程学院,天津300072

出　　处：《水利水电技术》2003年第9期32-35,共4页Water Resources and Hydropower Engineering

摘　　要：以某260m高坝的30000m3/s大泄量挑流水垫塘工程为背景,采用1∶100水工模型,使用肋形溢流坝概念研究表、中、底孔消能工的合理形式和配置,大大减轻了挑流水垫塘的负荷,从而充分发挥水垫塘消能和调整流态的作用.同时,采用各种测试手段和方法弄清了挑流水垫塘的工作机理和底板稳定因素,从而提出了底板设计建议以及优化途径.In a hydraulic model of a project with ski:jump plunge pool, the ribbon:type overflow spillway in combination with middle and bottom outlets was studied. A reasonable layout of the structure was formulated, which could reduce the load of the trajectory overflow exerting on the plunge pool bottom and make the pool playing function of energy dissipation. The prototype dam was 260 m high and with the maximum discharge capacity of 30,000 m3/s. The influencing factors of the slab stability were investigated. Some suggestions for slab design were proposed and its optimization was discussed.

关 键 词：肋形溢流坝 挑流水垫塘 塘底板 脉动上举力 抗浮稳定性 

分 类 号：TV653[水利工程—水利水电工程]