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由于三峡水库实现145~175 m蓄水目标后,湖北省宜昌市兴山水文站现有流量测验设施长期受水库回水顶托影响,过水断面面积增大,流速变小,水文电动缆道和水平式ADCP流量在线监测系统无法正常施测流量,不能为三峡水库防洪调度提供及时准确的流量、泥沙等水文信息,因此对该站水平式ADCP流量在线监测系统进行升级改造。将S3-SVR雷达流量计应用于兴山水文站的在线测流系统,所获得的流速数据准确,数据传输稳定、可靠、快捷,达到了升级改造的要求。
Since the Three Gorges Reservoir has achieved the goal of 145-175 m water storage, the existing flow test facilities at Xingshan Hydrological Station of Yichang City, Hubei Province, have been affected by the backwater support of the reservoir for a long period of time. The cross-sectional area of the water flow increases and the flow rate decreases. And horizontal ADCP flow online monitoring system can not normally measure the flow rate, and can not provide timely and accurate hydrological information such as flow and sediment for the flood control and dispatch of the Three Gorges Reservoir. Therefore, the on-line ADCP flow online monitoring system of the station is upgraded and upgraded. Applying the S3-SVR radar flowmeter to the on-line flow measurement system of Xingshan Hydrological Station, the obtained flow velocity data is accurate and the data transmission is stable, reliable and fast, which meets the requirements of upgrading and reconstruction.