杨房沟水电站初期导流模型过流试验  

Experimental Study on Initial Stage Diversion of Yangfanggou Hydropower Station

作　　者：李霞[1] 伍芝铭 侯极[3] 

机构地区：[1]重庆交通大学河海学院,重庆400074 [2]重庆市水利电力建筑勘测设计研究院,重庆400020 [3]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065

出　　处：《水电能源科学》2012年第5期59-61,104,共4页Water Resources and Power

基　　金：省部共建水利水运教育部重点实验室开放基金资助重点项目(SLK2008A03);重庆市自然科学基金资助项目(cstc2011jjA00027)

摘　　要：杨房沟水电站工程施工导流采用围堰断流、隧洞导流方式,为进一步掌握施工初期导流阶段的水流条件,确定围堰和坝体的施工安全,进行了初期导流模型试验研究。通过模型试验,测试了导流隧洞的泄洪能力、水流流态、空化数及下游流速与河床的冲刷情况,验证导流隧洞过流安全。根据模型试验结果,进一步优化了围堰堰顶高程与导流隧洞进口的进水条件,为工程初期导流设计与施工组织提供了重要的指导作用。The Yangfanggou Hydropower Station takes the single cofferdam with tunnel diversion as the diversion mode.In order to further understand the flow conditions of initial stage diversion and ensure safety of cofferdam and the dam construction,the initial stage diversion model experimental research is conducted.Through the model test,it measures the discharge capacity,flow pattern,cavitation number of diversion tunnel,downstream flow velocities and river bed roughness.The safety of water passing of diversion tunnel is verified.According to the experimental results,the inflow conditions of weir crest elevation of cofferdam and diversion tunnel entrance is optimized,which provides guidance for diversion design and construction organization in initial stage.

关 键 词：杨房沟水电站 初期导流 模型试验 导流隧洞 围堰 

分 类 号：TV551.12[水利工程—水利水电工程]