为研究长连接管和分流作用对调压室稳定断面和水位波动衰减特性的影响,推导了长连接管与分流调压室稳定断面计算公式,采用MathCAD数值验证理论推导结果,并分析了连接管和分流作用对调压室水位波动幅值、周期和衰减速度的影响规律,以实际水电站为例进行对比计算。结果表明,设置长连接管对调压室稳定断面无影响,但不利于调压室水位波动衰减,而分流作用可减小调压室稳定断面,使调压室水位波动迅速衰减。 In order to study the influence of long connecting pipe and shunt on stability and fluctuation characteristics of stable section and water level fluctuation in surge chamber, the formula of stable section of long connecting pipe and shunt surge chamber was deduced. MathCAD numerical verification theory was used to derive the results. And the effect of diversion on the amplitude, period and decay rate of the water level in the surge chamber are compared and calculated by taking the actual hydropower station as an example. The results show that the long connecting pipe has no effect on the stable cross section of the surge chamber, but it is not conducive to the fluctuation of the water level fluctuation in the surge chamber. However, the shunt effect can reduce the stable cross section of the surge chamber and rapidly damp the surge of water level in the surge chamber.