桥梁建设对堤防工程影响试验研究

打开文本图片集

关键词：桥梁；堤防工程；水槽试验；堤脚流速；堤脚冲深中图分类号：U445；TV882.1 文献标志码：A doi:10.3969/j.issn.1000-1379.2026.03.010引用格式：,,.桥梁建设对堤防工程影响试验研究[J].人民黄河,2026,48（3）:66-72.

Experimental Study on Influence of Bridge Construction on Embankment Project

HOU Jiaojian，DAI Zhiyu，HOU Zhijun

（Yelow Kiver Istituteot Hydraulc Kesearch，KeyLaboratoryotYelowKiverSediment KesearchofMWK,Zhengzhou4U，ina） Abstract:IndertosudytheimpactofteproposedJibincros-iverrdgeonthembankmenprojectintelowerreacesofthYellow River，aseriesoftestsontheinfluenceofpierayoutondikeengineringwerecadoutbyusinga1:15Ooalodelfumeaterent discharges.Thetestresultssowthatearrngementofidgepiersnearthembankmentwillhaveacertainimpactonthesaetyoftembankmentproject，minlymanifestedinteicreaseoftheflowvelocityatthefootoftembakmentandteincreaseofterosiodept, etc.Thedegreeofinfluenceicreasswiththedecreaseoftedistancebetweenthebridgepiersandtefotoftheembankmentndtheincreaseofteincomingflow.Theinfluencerangeisfrom315mupstreamofthebridgelocationto36Omdownstreamofthebridgelocation. Underthe design planconditions,the maximum increase in the flow velocity at the foot of the embankment is 3.01ms ，the maximum increase in the depth of the embankment at the foot is 0.85m ，and the erosion depth of the bridge piers is 12.7 m. There is a low-speed zone behind the bridge piers.The reduction value of the flow velocity is O.5 to 1.8m/s ，and the affected distance is 90O to 1 500m

Key words:bridge；dike engineering；flume test；dike foot velocity；dike foot erosion depth

0 引言

桥梁建设对堤防工程的影响是河道防洪影响评价的重要内容之一，但防洪影响评价分析大多是计算桥梁的壅水高度及对上游河道的影响长度，然后给出堤防加固范围及高程，但在桥梁布设（桥墩与堤防距离）对桥轴线附近堤防的影响程度往往被忽视，这恰恰是桥梁对堤防影响最关键之所在。（剩余13579字）