水平式ADCP流量在线监测在弥陀寺水文站的应用研究
Application of H-ADCP System On-Line Monitoring in Mituosi Hydrological Station

弥陀寺水文站通断流频繁，水位流量关系不稳定，利用连时序绳套法定线复杂，所需流量测次较多。为解决此类问题，开展水平式声学多普勒流速剖面仪(简称H-ADCP)比测试验。通过H-ADCP测验数据与传统流速仪法流量资料的对比分析，采用代表流速法，挑选具有代表性的H-ADCP流速单元与断面平均流速建立相关关系，考虑测验断面冲淤变化情况，确定断面流量推算方案，并对方案进行精度评定，以达到水文站流量在线监测的目的。
Affected by the adjustment of water conservancy projects, the Mituosi Hydrological Station has an unstable relationship between water level and flow discharge. The use of loop-rating curve is complicated and needs many measurements. To solve this problem, the H-ADCP System on-line monitoring and comparison test was carried out. Through the comparative analysis of H-ADCP test data and rotating element current-meter data using index flow rate method, we select representative H-ADCP flow velocity unit, establish the average flow velocity of the section correlation, consider the changes in the erosion and deposition of the test section, determine the flow calculation plan of the section, evaluate the accuracy of the plan, and achieve the purpose of on-line monitoring of the flow discharge.