Non-excavation stainless steel expansion ring joint repair construction method for underground sewage pipeline
A technology for sewage pipelines and construction methods, applied in the directions of pipes/pipe joints/pipes, pipe elements, connecting components, etc., can solve the problems of high cost and water infiltration into the interior of the pipeline, and achieve simple construction steps, cost saving, and high economic benefits. Effect
Active Publication Date: 2021-06-25
广东德泽建设工程有限公司
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Problems solved by technology
[0004] The above-mentioned existing technical solutions have the following defects: the above-mentioned technologies basically use reinforced lining materials to plug the leaking part of the pipeline from the inside of the pipeline. However, water seeps into the pipe from the inner wall of the pipe and the reinforced lining because the reinforced lining fails to fit tightly with the pipe, and the use of a large-area reinforced lining reduces the failure of the reinforced lining to connect with the pipe. There is room for improvement due to the high cost of materials and mechanical equipment for tight fit methods such as CIPP flip repair techniques
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[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0039] Such as Figure 1 to Figure 2 As shown, a construction method for repairing joints of an underground sewage pipeline 1 without excavation stainless steel expansion ring 3 disclosed by the present invention comprises the following steps:
[0040] Step 1: Construction preparation, including sewage mediation, confirmation of leakage points and garbage cleaning at leakage points;
[0041] Step 2: Chiseling the crack 11, chiseling and expanding the leak point, and cleaning the crack 11 after expansion;
[0042] Step 3: High-pressure grouting: Pre-embed nylon reinforced grouting pipes in the trenches at the leakage points, and use instant setting cement to embed and smooth the cracks 11 at the pipe mouth, and pressurize them through a special high-pressure pump for grouting, which will be determined in advance The proportioned and prepared epoxy resin grou...
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The invention relates to a construction method for repairing the seam of an underground sewage pipeline without excavating stainless steel expansion rings, wherein the three-layer internal sealing method of epoxy resin grouting material, polysulfide anti-corrosion sealant and butyl rubber plate adopts the method of grouting, smearing and installation , are relatively fast installation methods, making this repair method complete the repair of crack plugging and at the same time, the overall construction period is shorter, and the rubber plate is partially blocked, the expansion ring can be prefabricated in batches, and the overall cost is also low. . The irrigation test is beneficial to test the repair effect, if the effect is not satisfactory, it can be adjusted in time.
Description
technical field [0001] The invention relates to the technical field of pipeline repair, in particular to a non-excavation stainless steel expansion ring seam repair construction method for underground sewage pipelines. Background technique [0002] At present, with the development of modern cities and towns and the growth of urban residents, the amount of sewage discharges generated by people's lives is also increasing. In addition, the longer the early sewage pipelines are used, the parts inside the pipelines are gradually aging, and the sewage inside the pipelines is affected. The leakage caused by corrosion has become more and more serious, which has greatly affected the normal operation of the drainage system. [0003] In order to solve such problems, there are more and more non-excavation repair construction technologies for pipelines. Among them, the more commonly used and better economic benefits are solidified lining repair technology, segment lining repair technolog...
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IPC IPC(8): F16L55/163F16L55/175F16B2/04
CPCF16B2/04F16L55/163F16L55/175
Inventor 韦永权蔡智聪彭晓薇
Owner 广东德泽建设工程有限公司