倒虹吸进口处的水雍水迭及进口管内水跃处理

分析了在通过比设计流量大和小的流量时倒虹吸进口分别发生水壅和水跌的原理，推出了最大流量和最小流量时水壅水跌的大小。对最小流量情况下进口水面跌落在管内形成的水跃对管道的影响及为消除水跃而采取的工程处理措施进行了定性和定量的论述。对倒虹吸进出口设计具有普遍的指导作用。

Rise and Fall of Water Level of the Inverted Siphon’s Entrance, and How to Deal with Hydraulic Jump

This paper discussed the principle about rising and falling of water level of the inverted siphon’s entrance on discharge analysis, peak and minimum discharge’s hydraulic jump deduced. Under minimum discharge, hydraulic jump makes an impact on the tube falling of water level in the tube. The project steps discussed quantitative analysis and qualitative analysis taken to eliminate the hydraulic jump. It possesses guiding role designing the siphon.