Spraying method for repairing water supply pipeline from inside

Abstract

The invention relates to a spraying method for repairing a water supply pipeline from inside, which comprises the following steps: determining a to-be-repaired pipe section, and excavating construction pits at two ends of the to-be-repaired pipe section; detaching a pipeline part located in the construction pit so that a pipe section opening and a water supply pipeline opening which are oppositelyarranged can be formed in the two sides of the construction pit through the water supply pipeline, and the pipe section openings are formed in the two ends of the to-be-repaired pipe section; cleaning the inner wall of the to-be-repaired pipe section; providing spraying equipment, and conducting spraying repair on the to-be-repaired pipe section from the pipe section openings by the spraying equipment; and replacing the detached pipeline part and then installing same back into the construction pit, and backfilling the construction pit. The problem that an operation water supply pipeline is difficult to repair is effectively solved; the water supply pipeline is repaired by directly spraying the pipeline buried underground, so the operation efficiency is improved, later ground repair is facilitated, and the influence on ground traffic is reduced.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a spraying method for internal repair of water supply pipelines. Background technique [0002] At present, the maintenance of water supply pipelines is mainly based on the operation mode of replacing new pipes after excavation of the road surface. This method takes a long time, and it is difficult to ensure the normal water use of the surrounding residents. In addition, this kind of excavation will cause great damage to the road surface. It is not conducive to road surface repair in the later stage and has a great impact on ground traffic. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art, to provide a spraying method for repairing water supply pipelines from the inside, which solves the problem of difficult repair of water supply pipelines, and to repair the water supply pipelines by directly spraying the bu...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of the prior art, to provide a spraying method for repairing water supply pipelines from the inside, which solves the problem of difficult repair of water supply pipelines, and to repair the water supply pipelines by directly spraying the buried pipelines, Improve the operating efficiency, greatly reduce the ground repair in the later stage, and reduce the impact on ground traffic

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