五道库水电站溢流坝挑流鼻坎优化试验  

Study on optimizing of flip bucket at Wudaoku hydropower station's overflow dam

作　　者：张术彬 常俊德 田振华 

机构地区：[1]黑龙江省水利科学研究院,哈尔滨150080

出　　处：《东北农业大学学报》2014年第6期122-128,共7页Journal of Northeast Agricultural University

基　　金：黑龙江省科技攻关项目(GC12A301)

摘　　要：挑流鼻坎是水库溢流坝挑流消能结构的重要组成部分,直接影响水库的工程安全与运行效益。文章通过五道库水电站溢流坝水工模型试验,对原设计方案进行验证并调整。与原设计方案相比,优化堰面曲线和挑流鼻坎参数,使进口段水流流态和堰面负压情况得到明显改善,挑射水流挑射高度和内外缘挑距均显著提高,坝体结构更合理,利于工程安全。研究成果可为设计单位提供技术参考,对同类工程设计和其他模型试验有借鉴意义。Flip bucket has heavy effect on the safety and working benefit of the reservoir, which is one of the important parts of overflow dam＆#39;s trajectory energy disipation. The paper verified and adjusted the original design by Wudaoku hydraulic model test. The results show that compared with the original design scheme, water flow regime of inlet section and pressure of weir surface was significantly improved, jet height and inner jet trajectory length were sharply increased. The adjustment that included optimizing weir surface curve and flip bucket parameters was reasonable and beneficial to dam＆#39;s structure. The acquired conclusions can be provided to a strong technical support for designing and a referrence for similar project.

关 键 词：溢流坝 挑流鼻坎 水工模型试验 优化设计 挑流半径 

分 类 号：S767.5[农业科学—森林保护学] X172[农业科学—林学]