倒虹管设计要点分析与凹字型倒虹管实例

排水管渠遇到河流、山涧、洼地或地下构筑物等障碍物时,需采用倒虹吸方式通过。该文对倒虹管形式及敷设条数、倒虹管管径坡度及埋深、流速、进出水口及事故排放口等倒虹管设计要点进行了分析和总结,并结合设计手册和规范要求,将其运用于凹字型倒虹管实例的设计与计算。

Analysis on Design Gist of Inverted Siphon and Case of Concave-shaped Inverted Siphon

The inverted siphon is usually used when the sewage pipelines meet the obstructions,such as river,mountain stream,low-lying land or underground structure.The article analyzes and sums up the design gist of the type,laying number,diameter,gradient,burying depth,velocity,inlet,outlet and accident discharge outlet of inverted siphon.According to the design handbook and design criterion,the design gist is applied into the design and calculation of a concave-shaped inverted siphon.