黄浦江上游河床演变分析研究  

Analysis of riverbed evolution in upper reaches of Huangpu River

作　　者：卢文彬 LU Wenbin(Shanghai Administration of Dyke&Sluice,Shanghai 200080,China)

机构地区：[1]上海市堤防泵闸建设运行中心,上海200080

出　　处：《水利水电快报》2024年第8期21-27,共7页Express Water Resources & Hydropower Information

摘　　要：黄浦江作为感潮和通航河道,河床演变受到径流、潮汐和人为因素等多方面影响。为研究黄浦江上游岸滩保护方案,避免防洪岸线遭受侵蚀,通过2012年、2015年、2018年和2021年实测数据,分析了河床现状深槽分布以及历史平面冲淤、等深线和断面变化,并基于数据分析提出保滩方案。利用三维水动力模型计算分析了历史洪水工况下的保滩效果。结果表明:黄浦江上游河床具有一定冲刷趋势,最大冲深发生在2015~2018年间,冲深达5~6 m;适当的保滩可以阻止深泓加剧,维持水面高程差不超过0.1 m,对航运影响较小。研究成果可为黄浦江上游河床岸滩的保护提供参考。As a tidal and navigable river,the riverbed evolution of Huangpu River is affected by many factors,such as runoff,tide and human activites.In order to avoid the shoreline erosion in the upper reaches of Huangpu River,the distribution of deep troughs in the current riverbed,changes of historical scouring and silting,contour lines and cross-sections were analyzed based on measured data of 2012,2015,2018 and 2021,and a beach protection scheme was proposed.The beach protection scheme was calculated by a three-dimensional hydrodynamic model under historical flood conditions.The results showed that the riverbed in the upper reaches of Huangpu River had a slight erosion trend,and the maximum erosion depth occured during 2015 to 2018,reaching to 5 to 6 m.The erosion can be reduced by beach protection,and the surface elevation difference can be controlled within 0.1 m according to simulation.The research can provide a data analysis and reference for the riverbed evolution in the upper reaches of Huangpu River.

关 键 词：河床演变 水流动力特性 深泓 黄浦江 

分 类 号：P642.22[天文地球—工程地质学]