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近几年来 ,三门峡水库为了减少库区淤积 ,实现冲淤平衡 ,在运用中不断降低蓄水位和洪水起调水位 ,在洪水期敞泄排沙 ,使入库潼关站以下库区已非完全水库调节 ,而是河道调节与水库调节相结合。其调洪演算预报的方法 ,采用了“马斯京根河道流量演算法”和“蓄率中线调洪演算法”联合预报 ,并针对库容随洪水冲刷和蓄水淤积的改变的情况 ,用实时校正法加以解决 ,从而提高了预报精度
In recent years, Sanmenxia Reservoir in order to reduce siltation in the reservoir area to achieve scouring and silting balance, in the use of continuous reduction of water level and flood water level, flood and sediment discharge in the flood season, so that the storage area below the Tongguan station has been incomplete Reservoir regulation, but the combination of river regulation and reservoir regulation. The method of flood forecasting calculation adopts the combined forecasting of “Muskingum river flow calculation method” and “storage rate center flood control algorithm”. In view of the change of reservoir capacity with flood scouring and water storage deposition, Correction method to be solved, thus improving the forecast accuracy