本文从调压井的基本方程出发,采用Fortran语言和龙格库塔方法编制了阻抗室调压井水位波动的数值计算程序,用此程序计算了青海地盘子水电站阻抗式调压井两种阻抗孔面积下在增荷或甩荷时的水位波动过程,并与模型试验结果相比较,结果表明计算结果与实测结果相符。这种计算方法对其它实际工程有参考价值。 In this paper, based on the basic equations of surge tank, the numerical calculation program of water level fluctuation in surge tank is compiled by Fortran language and Runge-Kutta method. Two kinds of impedances of impedance surge tank of Qinghai Diczi sub Hydropower Station are calculated. The fluctuation of the water level at the time of loading or rejection under the hole area is compared with that of the model test. The results show that the calculation results are consistent with the measured results. This calculation method for other practical projects have reference value.