涌潮作用下弯道丁坝局部冲刷试验研究  

Experimental Study on Local Scour of a Spur Dike in a Curved River Channel under the Action of Tidal Bore

作　　者：钱盛杰 陈刚 金新 罗红林 何昆 QIAN Shengjie;CHEN Gang;JIN Xin;LUO Honglin;HE Kun(Haining River Embankment Management Office of Yancang Section,Haining 314423,Zhejiang,China;Zhejiang Institute of Hydraulics&Estuary(Zhejiang Institute of Marine Planning and Design),Hangzhou 310017,Zhejiang,China)

机构地区：[1]海宁市盐仓江堤管理所,浙江海宁314423 [2]浙江省水利河口研究院(浙江省海洋规划设计研究院),浙江杭州310017

出　　处：《浙江水利科技》2022年第6期32-35,41,共5页Zhejiang Hydrotechnics

基　　金：浙江省水利科技项目(RC2052);浙江省公益技术研究计划(GF21E090003);浙江省省属科研院所扶持专项(河口A21014)。

摘　　要：为研究涌潮作用下弯道段与直道段丁坝局部冲刷差异,采用物理模型进行试验研究,分别用整体模型模拟弯道段丁坝,水槽断面模型模拟直道段丁坝。结果表明:涌潮作用下,位于弯道的丁坝局部冲刷坑较直道段深0.40~2.50 m;研究得出充分防护时涌潮作用下直道段、弯道段典型丁坝坝头局部冲刷经验公式,可供丁坝设计参考。The physical model method is used for experimental research on the local scouring difference of spur dikes in curve section and straight section under the action of tidal bore.The integral physical model is used to simulate the spur dike in a curved river channel and the flume section model is used to simulate the spur dike in a straight river channel.The test results show that under the action of tidal bore,the local scour pit of the spur dike in the curved river channel is 0.4-2.5m deeper than that of the straight river channel.The empirical formula of local scour at the head of a typical spur dike which is fully protected in a curved channel and a straight channel under the action of tidal bore can be used as a reference for spur dike design.

关 键 词：丁坝 涌潮 弯道 局部冲刷 

分 类 号：TV863[水利工程—水利水电工程] TV143