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本文依据《河流流量测验规范》及《水文测验与查勘》提供的理论基础.结合山东测区测验实际,对低水时期流速、流向的垂线分布进行了试验分析,特别是对流向垂线分布的试验分析在黄河流域尚为首次。试验分析结果说明.山东测区各水文站低水时期常用的“2点法”测速方法代表性好、稳定可靠;水面流向替代垂线平均流向改正流速计算流量的精度符合规范要求。
This article based on the “river flow test norms” and “hydrological test and survey” to provide the theoretical basis.Combined with the test in Shandong Province, the actual test, the vertical distribution of velocity and direction of low water period were analyzed, especially the vertical distribution of flow The experimental analysis is still the first time in the Yellow River Basin. The test results show that the common “2-point method” speed measurement method of hydrological stations in Shandong province is good and stable, and the accuracy of the water flow direction instead of the vertical average flow velocity to correct the flow rate complies with the requirements of the code.