Large-span overhead pipeline sliding installation method

Abstract

The invention discloses large-span overhead pipeline sliding installation technology which comprises an overhead pipeline truss. The technology is characterized by comprising the following installation steps: a) making a new bracket and a temporary bracket; b) providing multiple sections of pipelines; c) installing a horizontal pipeline spanning over a factory protection river and an over-railway section; and d) installing vertical sections of pipelines on the two sides of the horizontal pipeline. By the large-span overhead pipeline sliding installation method disclosed by the invention, pipelines can be hoisted in place successfully when the pipelines cannot be hoisted in place conventionally by a crane due to the restriction of a narrow field and other objective conditions, the construction safety and installation quality are guaranteed, and the installation construction expenses is reduced greatly.

Description

technical field [0001] The invention relates to a sliding installation method of a large-span overhead pipeline. Background technique [0002] Water or air pipes are usually buried in the ground. These pipes are traditionally buried at a depth of about 6 meters to 12 meters. However, it is often not possible to bury water or air pipes in certain areas. For example, it is not possible to bury water or air pipes under rivers, in areas where many pipes are already buried, or under heavy traffic roads, railways. [0003] Baosteel tidal flat area supporting power main pipe project, including a medium pressure nitrogen pipeline, pipe diameter D426×9, pressure 0.7MPa. The entire construction pipeline is very long, and the installation and construction of the nitrogen pipeline across the Huchang River on Weishilu Road to the railway section of Weiyi Road is very difficult. There is a support on both sides of the Moat River, with a spacing of 29 meters (the original support truss...

AI Technical Summary

Problems solved by technology

The center of this section of pipeline is about 39 meters away from Weishiyi Road, which is relatively far away and spans the original pipeline gallery, making construction and installation difficult

Between Huchang River and Weiyi Road on Weishiyi Road, there are all the railways of the Ministry of Transport. There are 12 railway tracks here, and the trains run very frequently. It is far from meeting the construction needs, and the crane cannot enter the site for hoisting operations

[0004] Therefore known directly there is above-mentioned inconvenience and problem with pipeline hoisting method with crane

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