一珠江三角洲联围筑闸的水文水利计算,过去多用“平湖法”,其计算方法是,在已知闸外水位过程、闸内河涌容积、围内来水量和假定水闸闸孔断面尺寸以后,按照水量平衡的原理,用逐时试算法夹确定水闸规 In the past, the “Pinghu Method” was commonly used in the calculation of hydrology and water conservancy in conjunction with the building of the Pearl River Delta. The calculation method is that after knowing the water level outside the floodgate, the volume of the in-stream river, the inflow of the surrounding water and the sectional size of the sluice gates, In accordance with the principle of water balance, with time trial method to determine the water gate clamp regulations