基于H-ADCP的河道断面流速流量测算--以马房大桥在线流量站为例  

Calculation of River Section Velocity and Discharge Based on H-ADCP-A Case Study of Online Flow Station of Mafang Bridge

作　　者：杨志斌 YANG Zhibin(Foshan Hydrology Branch of Guangdong Hydrology Bureau,Foshan 528000,China)

机构地区：[1]广东省水文局佛山水文分局,广东佛山528000

出　　处：《广东水利水电》2023年第6期26-30,共5页Guangdong Water Resources and Hydropower

摘　　要：在水文在线监测中,河道断面流速的准确测量是一项重要工作,由于断面流速的数据收集难度高、指标关系方程构建困难,现有的在线测流技术中流量计算误差较大。该文以广东省北江下游马房大桥在线流量站为例,采用基于H-ADCP的河道断面流速测量方式,并进行流量计算,将流量计算结果与船载走航式ADCP的实测结果进行比较分析,得出基于H-ADCP的河道断面流速测量和流量计算具有较高的测量精度,并且具有较好的时效性,能够满足水文测报的要求。The accurate measurement of river section velocity is an important work in hydrology on-line monitoring.Due to the difficulty of collecting the data of cross section velocity and the difficulty of constructing the relation equation of index,the calculation error of flow rate is large in the existing on-line flow measurement technology.In this paper,the online flow station of Mafang Bridge in the lower reaches of Beijiang River in Guangdong Province is taken as an example.The velocity measurement method of river section based on H-ADCP is adopted and the flow calculation is carried out.By comparing the flow calculation results with the measured results of ship-borne sailing ADCP,it is concluded that the flow velocity measurement and flow calculation of river section based on H-ADCP have higher measurement accuracy and better timeliness,and can meet the requirements of hydrological measurement and reporting.

关 键 词：H-ADCP 河道断面 流速测量 流量计算 在线流量站 

分 类 号：P332.4[天文地球—水文科学]