益门镇站代表垂线流速与断面平均流速关系分析

Analysis of the Relationship Between the Representative Vertical Velocity of the Yimenzhen Station and the Average Velocity of the Section

以益门镇水文站2020年流速仪法实测的4条测速垂线平均流速与断面平均流速资料为依据,采用建立代表流速与断面平均流速的相关关系方法 ,分析确定该站水文测验断面起点距35.0 m处施测垂线流速可以推算断面平均流速,且能确保测速垂线在一定的水位级下流速具有较为稳定的相关关系和测验精度,为该站在今后的流量测验中快速、准确地实测河道流量提供理论依据。

Based on the data of the average velocity of four vertical lines and the average velocity of the cross-section measured by the flow meter method of the Yimenzhen Hydrological Station in 2020,the method of establishing the correlation between the representative velocity and the average velocity of the cross-section is used to analyze and determine the starting distance of the hydrological test section of the station Measuring the vertical velocity at 35.0 m can calculate the average velocity of the section,and can ensure that the velocity of the vertical velocity at a certain water level has a relatively stable correlation and test accuracy,which will help the station quickly and accurately in the future flow testing The measured river flow provides a theoretical basis.