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多沙河流的水库调洪计算,不同于常用的清水河流的水库调洪,主要区別在于库区的泥沙淤积和冲刷对出库的洪峰、洪量及泄空时间均有影响。本文根据挟沙水流平衡方程及水库输沙关系式,提出考虑泥沙冲淤的多沙河流水库调洪计算方法,经用黄河三门峡与二级支流蒲河巴家咀水库的实际资料验证,获得较好的结果,可为多沙河流水库调洪演算应用。
The calculation of reservoir flood diversion in the Dousha River is different from that of the commonly used reservoir flood control in Qingshui River. The main difference is that sediment deposition and scour in the reservoir area have an impact on the flood peak, flood volume and discharge time of the reservoir. Based on the sediment-laden flow balance equation and reservoir sediment transport relationship, this paper proposes a method to calculate the flood control of the Dousha River reservoir considering the sediment erosion and sedimentation. After validating with the actual data of the Sanhe River reservoir and the Sanhe River reservoir, The good result can be used for flood control calculation of the Dousha River Reservoir.