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涵闸是能控制放水流量的水工建筑物,有了水位、闸门开启高度与流量系数,就可以用水力学公式计算过闸流量。但是,水力学公式里的一些系数是随着涵闸的外部形式及水流条件而变化的,系数选取正确,推算出的过闸流量就正确,反之,就不正确。本文根据潘庄引黄闸实测流量资料,采用水力学中堰闸流量公式,推算流量系数,建立相关因素曲线,然后进行分析,并利用泥沙运动中含沙量与挟沙能力公式对曲线进行改进,从而建立较为科学的涵闸放水流量推算公式,为今年黄委会在黄河
Culverts are hydraulic structures that control the discharge of water. With the water level, gate opening height and flow coefficient, the sluice flow can be calculated using a hydraulic formula. However, some of the coefficients in the hydraulic formula vary with the external form of the culvert and the conditions of the water flow. When the coefficients are chosen correctly, the estimated overrun flow rate is correct, on the contrary, it is not correct. Based on the measured flow data of Panzhuang Yellow River Diversion, this paper uses the formula of flow rate of weir gate in hydraulics, calculates the flow coefficient and establishes the related factor curve, then analyzes the curve and makes use of the sediment concentration and sediment carrying capacity formula in sediment movement Improve, so as to establish a more scientific sluice discharge flow calculation formula for the Yellow River in the Yellow River this year