低水头拦河水闸折线型实用堰流计算分析  

Analysis on the Calculation of the Practical Weir Flow With Polygonal Line of the Low Head Sluice

作　　者：黄智敏[1,2] 陆汉柱[1,2] 付波[1,2] 罗岸[1,2] 黄健东 HUANG Zhimin;LU Hanzhu;FU Bo;LUO An;HUANG Jiandong(Guangdong Research Institute of Water Resources and Hydropower,Guangzhou 510635,China;Guangdong Provincial Key Laboratory of Hydrodynamics,Guangzhou 510635,China)

机构地区：[1]广东省水利水电科学研究院,广州510635 [2]广东省水动力学应用研究重点实验室,广州510635

出　　处：《广东水利水电》2023年第3期9-13,共5页Guangdong Water Resources and Hydropower

摘　　要：低水头拦河水闸闸室堰型一般可分为宽顶堰和实用堰2种,而其实用堰主要为折线型的低堰。目前,拦河水闸闸室宽顶堰堰流的水力计算方法较完善,折线型实用堰堰流水力计算方法尚不够成熟和完善。在综合分析拦河水闸折线型实用堰的低堰、工程布置、工程运行实际状况等特点和因素的基础上,取得主要成果为:满足该文工程所述特点(低堰、设置上游铺盖和闸墩等)的水闸折线型实用堰的堰流呈现为宽顶堰堰流,其淹没界限判别和淹没系数计算可采用宽顶堰流相同的方法。研究成果得到了相关工程水力模型试验成果的验证,可供类似工程设计和运行参考。The weir type of the low head sluice chamber can be divided into two kinds:broad crested weir and practical weir,and the practical weir is mainly low weir with polygonal line.At present,the hydraulic calculation method of the broad crested weir flow of the sluice chamber is more perfect,but the hydraulicl calculation method of the practical weir flow is not mature and perfect.Based on the comprehensive analysis of the characteristics and factors such as low weir,engineering layout and actual project operation,the main results are as follows:the weir flow of the practical weir of the sluice that meets the characteristics(low weir,setting upstream coverings and sluice piers,etc.)described in this paper presenting as the weir flow of the broad crested weir,and the identification of submergence limit and calculation of submergence coefficient of the practical weir identifying with the broad crested weir flow.The results are verified by the hydraulic model test results of related engineering,which can be used as reference for similar engineering design and operation.

关 键 词：拦河水闸 折线型实用堰 流态 计算 研究 

分 类 号：TV66[水利工程—水利水电工程]