Ensure the safety of pipelines above ground beam conversion gas pipeline in the process of repair and maintenance
There have been considered and analyzed ways to ensure the safety of crossings of main gas pipeline of large diameter (D = 1200 - 1400 mm) in the process of repair and maintenance work on support beam crossings. There are presented theoretical and experimental values of local stresses arising from the contact of the rollers of the chain of long cylindrical shell and the influence of structural elements of the lift on the strength of the pipeline.