Hydraulic Analysis and Calculation of Flood Diversion Scheme for the Downstream Reach of Raoyang River
XU Shiming
Abstract：Taking the downstream diversion scheme of Raoyang River as an example,based on the calibration of one-dimensional MIKE11 model and the verification of two-dimensional MIKE21FM model,the influence of different diversion channel widths(50 m,100 m,200 m)on the flood level and diversion efficiency of the river channel is analyzed.The results show that the width of the diversion channel is positively correlated with the decrease in water level,but the increase slows down with the increase of width;The 200 m wide diversion channel reduces the water level by 1.05 m for floods that occur with a return period of less than 5 years,and significantly increases the proportion of diversion flow.The research can provide a reference for the design of flood diversion projects in northern plain rivers.
Keywords：flood diversionhydraulic modelwidth of flood diversion channelwater level reductionRaoyang River
Publication Date：2026-05-20
Online Publishing Date：2026-09-16(First online date of this platform, not the publication date of the document)
Pages：7( 93-99 )