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流量系数法是水工建筑物流量整编的重要方法,随着外界条件的改变,某流态下所率定的流量系数线会发生形态变化,如不加分析修订,不仅影响到流量资料的整编,还会造成原定报汛流量曲线使用中出现查算偏差,影响防汛调度。文章旨在通过实例,阐述流量系数线分析修订的重要性,对提高堰闸站水文测报质量具有一定的指导意义。
The flow coefficient method is an important method to reorganize the flow of hydraulic structures. As the external conditions change, the flow coefficient lines under a certain flow regime will undergo morphological changes. If not analyzed and revised, not only affects the reorganization of flow data , But also caused the original forecast flood flow curve used in the calculation deviation, affecting flood control scheduling. The article aims to illustrate the importance of revision of the flow coefficient line by examples, which is of guiding significance for improving hydrological monitoring of weir gate stations.