承插式球墨铸铁管水压试验后背设计

Back Design of Hydrostatic Test for Socket Type Ductile Iron Pipes

工程输水管主要为球墨铸铁承插管,水压试验是保障输水工程管道通水运行前的必要检验方法,试验的后背设计是保证试验安全进行很重要的一个关键点,单独设计混凝土和土体后背浪费时间资源。工程通过采用球墨铸铁管自身和水的重量以及与回填土的摩擦力作为水压试验后背,能够很大程度节约水压试验时间。

The engineering water pipes are mainly ductile iron socket pipes.Hydraulic pressure test is a necessary inspection method to ensure the smooth operation of water pipelines in water transmission projects.The design of the back of the experiment is an important key point to ensure the safety of the experiment.Designing the back of concrete and soil separately wastes time and resources.By using the weight of the ductile iron pipe itself and water,as well as the friction with the backfill soil,as the back of the hydrostatic test,it can greatly save the time of the hydrostatic test.