基于ADCP定点多垂线法在流量测验工作中的应用

Application of ADCP Fixed Point Multiple Vertical Line Method in Flow Measurement

ADCP定点多垂线法采用声学多普勒频移原理,可进行定点垂线测速和断面流量测验,其应用解决了水文测验中宽浅河床的大水深、小流速等复杂流态测流的难题,具有测速简便、输出数据直观、成果图表丰富等优点。以马家潭水文站流量测验为例,着重论述ADCP定点多垂线法的工作原理、流量计算方法、成功应用实例及操作注意事项。实践证明,该方法与传统的转子式流速仪法相比,自动化、智能化程度较高,提高了基层工作效率、时效性和安全性,测验精度可靠,减轻了劳动强度。该方法在水文流量测验工作中展示了其良好的推广应用前景,发挥了重要作用。

ADCP fixed point multi-vertical method adopts the principle of acoustic Doppler frequency shift,which can be used for fixed point vertical velocity measurement and cross section flow measurement.Its application solves the difficult problem of measuring the complicated flow pattern such as large water depth and small velocity in wide shallow river bed.It has the advantages of simple velocity measurement,intuitive output data and abundant result charts.Taking the flow measurement of Majiatan Hydrology Station as an example,the working principle,flow calculation method,successful application example and operation precautions of ADCP fixed point multiple vertical line method are emphatically discussed.The practice proves that compared with the traditional rotor current meter method,the method has higher degree of automation and intelligence,improves the working efficiency,timeliness and safety of the base,has reliable test accuracy and reduces the labor intensity.This method has shown a good prospect of popularization and application in the hydrological flow measurement work,and has played an important role.