不同控制运用条件下消能工特性研究  

Energy Dissipator Characteristics based on Different Control Operation Conditions

作　　者：李建国 贾冬梅 运剑苇 吴东 LI Jian-guo;JIA Dong-mei;YUN Jian-wei;WU Dong(Tianjin Zhongshui Technology Consulting Co.,Ltd.,TianJin 300171,China;The Seventh Drainage Management Office,TianJin Drainage Management Affairs Center,TianJin 300400,China)

机构地区：[1]天津市中水科技咨询有限责任公司,天津300171 [2]天津市排水管理事务中心第七排水管理所,天津300400

出　　处：《海河水利》2023年第5期96-99,共4页Haihe Water Resources

摘　　要：消能设计是水闸工程设计中的关键环节,消能防冲设施对于保障下游河道安全意义重大。从几何关系、水跃方程、能量方程等角度解析了消能计算公式中主要参数的物理意义,并提出一套系统的消能工计算流程。在此基础上,研究了不同工况下的消能工特性,结果表明:通常在“低开度、少孔数”的工况下,计算所得的池深-开度曲线往往表现为先增加、后减小的抛物线型,所得抛物线极值可作为池深设计的重要参考。研究成果可为消能设计提供一定技术参考,从而提高设计工作效率。Energy dissipation design is a critical link in the design of hydraulic structures,and energy dissipation and antiimpact facilities have significant importance in ensuring the safety of downstream channels.This paper analyzes the physical meaning of the main parameters in the energy dissipation calculation formula from the perspectives of geometric relationships,hydraulic jump equations,and energy equations,and proposes a systematic calculation process for energy dissipator.On this basis,the characteristics of the energy dissipator under different operating conditions are studied.The results show that under the operating conditions of“low opening and few holes”,the calculated pool depth curve often exhibits a parabolic type of first increasing and then decreasing,and the parabolic extreme value can be used as an important reference for the pool depth design.The research results can provide some technical reference for energy dissipation design and improve the design efficiency to a certain extent.

关 键 词：消能工 水闸 闸门开启度 池深 池长 

分 类 号：TV653.1[水利工程—水利水电工程]