基于MIKE11模型的东江干流水面线演变分析  

Analysis on Water Surface Profile Evolution of Dongjiang River Mainstream Bbased on MIKE11 Model

作　　者：陈瑾晗 黄剑威 艾锐 CHEN Jinhan;HUANG Jianwei;AI Rui(Guangdong Hydropower Planning&Design Institude Co.,Ltd.,Guangzhou 510635,China)

机构地区：[1]广东省水利电力勘测设计研究院有限公司,广州510635

出　　处：《广东水利水电》2023年第5期67-73,共7页Guangdong Water Resources and Hydropower

摘　　要：为研究近年来东江干流水面线的演变情况,基于MIKE11模型软件构建了东江干流一维水动力学模型,并分别采用2019年6月和2020年6月的洪水进行模型的率定和验证。用本次率定的模型进行水面线计算并与1991年行洪控制线和2005年水面线相比较,结果表明东江干流自20世纪80年代以来河床不断下切,导致相同流量下水位有下降趋势,符合实际情况。计算成果可为东江干流防洪治理工程的堤防、建筑物设计提供参考。In order to study water surface profile evolution of Dongjiang river mainstream in recent years,a one-dimensional hydrodynamic model of Dongjiang river mainstream is built based on MIKE11 software,and the floods in June 2019 and June 2020 are used to calibrate and verify the model.The water surface profile is calculated with this calibrated model and compared with the flood discharge control line in 1991 and the water surface profile in 2005.The results show that the riverbed of Dongjiang river mainstream has been continuously cut down since the 1980s,resulting in a downward trend of the water level under the same flow,which is in line with the actual situation.The calculation results of the current water surface profile of Dongjiang river mainstream can provide a reference for the design of embankments and buildings of the flood control project of Dongjiang river mainstream.

关 键 词：MIKE11模型 水面线 演变分析 东江干流 

分 类 号：TV122[水利工程—水文学及水资源]