开化水库差动式阶梯溢洪道的冲刷特性分析  

Analysis of the scour characteristics of the differential stepped spillway of Kaihua Reservoir

作　　者：邵建群 葛庭辉 郭媛 SHAO Jianqun;GE Tinghui;GUO Yuan(Kaihua Reservoir Construction Center,Quzhou 324300,China;Zhejiang University of Water Resources and Electric Power,Hangzhou 310018,China)

机构地区：[1]开化水库建设中心,浙江衢州324300 [2]浙江水利水电学院,浙江杭州310018

出　　处：《水利建设与管理》2024年第9期20-24,共5页Water Conservancy Construction and Management

基　　金：国家大学生创新创业计划(202311481001);浙江省大学生科技创新活动计划(2023R423002);2024年度义乌“三长带三会”研究重点课题。

摘　　要：本文针对开化水库工程的一种新型差动式阶梯溢洪道,通过数值计算方法分析不同溢洪道坡度下游的冲刷特性,包括最大冲坑深度和位置、最大淤积高度和位置、冲坑长度等。结果表明,坡度一定时,冲坑深度、淤积高度和冲坑长度随上游水深的增加而增大。而上游水深一定且坡度为26.6°时的最大冲坑深度最小,但淤积高度和长度却最大。此研究结果可为工程防冲设计提供有效参考。This paper focuses on a new type of differential stepped spillway for the Kaihua Reservoir project.Using numerical calculation methods,it analyzes the scour characteristics downstream of spillways with different slopes,including maximum scour depth and location,maximum siltation height and location,and scour pit length.The results show that,with a constant slope,the scour depth,siltation length,and scour pit depth increase with the upstream water depth.When the upstream water depth is constant and the slope is 26.6°,the maximum scour depth is the smallest,but the siltation height and length are the largest.These findings can provide effective reference for the design of scour protection in engineering projects.

关 键 词：差动式 阶梯溢洪道 坡度 数值模拟 冲刷特性 

分 类 号：TV135.2[水利工程—水力学及河流动力学]