某水库泄洪闸消力池长对池内水力特性影响的分析  

Analysis of the Influence of Stillingbasin Length on Hydraulic Characteristics inside a Pool of aFlood Gateina Reservoir

作　　者：谢高鹏 张琛 XIE Gaopeng;ZHANG Chen(Jiangxi Liao River Engineering Administration Bureau,Fengxin 330700,China)

机构地区：[1]江西省潦河工程管理局,江西商奉新330700

出　　处：《河南水利与南水北调》2023年第11期65-66,共2页Henan Water Resources & South-to-North Water Diversion

摘　　要：为准确确定出消力池长与消能效果之间的关系,以安福县泸水河北岸灌区白门洲水库为例,在设计计算其消力池长的基础上,对消力池长影响水流流态、底板及尾坎动水压强、脉动压强、总消能率的具体程度展开量化分析。结果表明,消力池长越长,池内各项水力特性指标取值也越合理,并能显著改善出池水流和下游河道水流的衔接状态;同时,消力池长增大后,对消力池总消能效率的影响相对较小。为此,必须在综合比较池内各项水力特性及消能效果与工程造价的基础上,合理确定消力池长。In order to accurately determine the relationship between the length of the stillingbasin and its energy dissipation effect,taking the example of the Baimenzhou Reservoir in the Lushui River Irrigation Area on the north bank of the Lushui River in Anfu County,quantitative analysis was carried out on the specific degree of influence of the length of the energy dissipation pool on the flow pattern,the dynamic water pressure on the bottom plate and the tail slope,the pulsating pressure,and the overall energy dissipation rate based on the design calculation of the energy dissipation pool length.The results show that the longer the length of the pool,the better the value of the hydraulic characteristic indexes inside the pool,and it can significantly improve the connection status of the outflow and downstream river flow.At the same time,the increase in the length of the energy dissipation pool has a relatively small impact on the overall energy dissipation efficiency of the pool.Therefore,it is necessary to determine the length of the stillingbasin reasonably on the basis of comprehensively comparing the hydraulic characteristics,energy and energy dissipation effect and the project cost in the pool.

关 键 词：消力池 池长 水力特性 消能效果 

分 类 号：TV135.2[水利工程—水力学及河流动力学]