水平式声学多普勒流速仪在受水工程影响测站的应用

Application of H-ADCP in Gauging Stations Affected by Water Structures in Upstream and Downstream

在测站控制条件较好的情况下,天然河流的水位与流量关系比较稳定,通过较少的流量测次,就能根据水位流量关系曲线,推出流量变化过程和全年的水量。但是,受水工建筑物影响情况下,水位流量变化急剧,水位流量关系相关性较差,传统的流量测验、整编方式很难适应。长沙坝水文站通过水平式声学多普勒流速仪在线流量因子监测,很好地解决了流量测验及整编等困难问题。

At the good station control situations,the stage-discharge relationship of a natural river generally is steady,which can be used to calculate the changes of discharge and water quantity in a whole year through several times of discharge monitoring.However,due to the effect of hydraulic structures,once the water level and discharge changes dramatically,the stage will not be pertinent to discharge so that the traditional discharge monitoring and compilation method is not applicable.This paper illustrated the on-line discharge monitoring with H-ADCP at the Changshaba Hydrometry Station,which successfully resolved the problems.