Internal expansion ring method pipe joint repair construction method

Abstract

The invention discloses an internal expansion ring method pipe joint repair construction method, solves the problem of incapability of quickly and effectively repairing pipes in the prior art, and achieves such effects as high construction speed, no construction limitation from the ground and the environment, low cost and no limitation to the joint repair from the pipes. The internal expansion ring method pipe joint repair construction method comprises the following steps: working pits are excavated along pipelines in a construction site by every other set distance; the pipes are cut for breakage in the working pits to drain water remained in the pipes; pipe joints are cleaned and filled; sealing strips are bonded on the inner walls of the pipes in the pipe joints; internal expansion ringsare clamped in annular grooves of the sealing strips, and set pressure is applied to the internal expansion rings; two ends of the pipelines are blocked, and the pipe flushing time is set; steel pipes are arranged in the breakage places of the pipes to join the broken pipes; and the working pits are backfilled to recover pavements.

Description

technical field [0001] The invention relates to the technical field of pipeline joint repair, in particular to a construction method for repairing a pipeline joint by the inner expansion ring method. Background technique [0002] The urban water transmission and distribution network is the lifeblood of urban industrial and residential water use, and the quality of water supply pipeline operation is directly related to the safety and reliability of water supply. The leakage of water supply pipelines is not only directly related to the cost of water supply, but also causes waste of precious water resources. Leaky drainage pipes can easily cause sewage leakage. The pipeline has been in disrepair for a long time, and the leakage of the pipeline joint is serious. During the maintenance, it is often encountered that the compensation for demolition is high, the maintenance construction site is narrow, the construction and maintenance are quite difficult, and there is a great insec...

AI Technical Summary

Problems solved by technology

But at present, the whole pipeline is excavated to expose the pipeline maintenance, and the construction is carried out after finding out the damaged location, which occupies a large maintenance area, affects normal traffic, is inefficient, and will cause large-scale and long-term water cuts, affecting people's normal life. working life

[0004] To sum up, in the prior art, there is still a lack of an effective solution to the problem of effective and quick repair of the pipeline interface

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