某水库台阶式溢洪道优化试验研究  

Design Optimization of Stepped Spillway Energy Dissipation in a Reservoir

作　　者：周苏芬[1] 邵仁建[1] 陈斌[1] 

机构地区：[1]江西省水利科学研究院,江西南昌330029

出　　处：《人民珠江》2017年第10期12-16,共5页Pearl River

摘　　要：台阶式溢洪道广泛应用于工程中,基于模型试验对某水库溢洪道除险加固工程台阶式溢洪道方案进行研究,试验结果表明,设计方案基本满足溢洪道常遇洪水的泄洪消能要求,但当下泄流量高于消能防冲流量时溢洪道泄槽局部出现不良水力现象,并且消力池长度不足。为此在设计方案的基础上,对溢洪道闸室出口泄槽连接段、泄槽掺气设施及消力池消力墩进行不同方案优化布置。通过模型试验最终选定相对较优方案作为某水库溢洪道除险加固方案,优化后泄槽内水翅现象消除,消力池内流态改善,总消能率有所提高。The stepped spillway is widely used in engineering.This paper analyzed the reinforcement plan of stepped spillway in a reservoir based on the model test.The results showed that the plan could meet the basic requirements,but if the water discharge increased,water-wings would gradually appear in the discharge chute and the length of stilling pool would be insufficient.On the basis of design scheme,this paper made a different optimization arrangement including changed the connection type of lock chamber and discharge chute,set up aeration slot and baffle block.The test results showed that the water-wings could be effectively eliminated and flow pattern in stilling pool was improved by optimizing design.Meanwhile,the total energy dissipation rate could be increased.

关 键 词：台阶式溢洪道 消能优化 掺气槽 消力墩 

分 类 号：TV651.1[水利工程—水利水电工程]