为研究超长有压引水隧洞的水力特性过程，以吉林省中部城市引松供水工程为基础，通过理论分析和变态模型试验的数据比较，验证了变态模型模拟的真实性，并且认识了超长有压引水隧洞的波动周期长、衰减慢等水体振荡特性。

Theoretical analysis and distorted model tests are performed to study the hydraulic characteristics of long-distance pressure diversion tunnel. The water diversion project from the Second Songhua River to central cities in Jilin Province is taken as an object. By comparing test data with theoretical analysis, the validity  of the distorted model is verified. The characteristics of hydraulic oscillation in long-distance pressure tunnel are found as long wave cycle of surge chamber and slow attenuation, etc.