Pipeline deformation trenchless jacking repair device and repair method

Abstract

The invention provides a pipeline deformation trenchless jacking repair device and a repair method. The device comprises a counter-force seat assembly which is arranged on the bottom surface of the inner wall of a pipeline; a jacking base assembly which is arranged directly above the counter-force base assembly and used for abutting against the top face of the inner wall of the pipeline; and a jacking device which is fixedly installed on the top face of the counter-force base assembly and used for driving the jacking base assembly to jack the inner wall of the pipeline upwards. According to the pipeline repair method provided by the invention, a trenchless mode is adopted, the jacking device is used for driving the jacking base assembly to move upwards, meanwhile, the jacking device applies the reverse acting force downwards through the counter-force base assembly, then the jacking base assembly applies upward jacking force to the inner wall of the pipeline, and therefore a longitudinally-deformed pipeline is reset. The repair device is simple in structure, construction operation in the pipeline is convenient and fast, and repairing of the longitudinally-deformed pipeline can be accurately achieved.

Description

technical field [0001] The invention relates to the technical field of pipeline repairing, and in particular, to a device and a repairing method for repairing pipeline deformation without excavation. Background technique [0002] At present, urban drainage or water supply pipelines are one of the important infrastructures to support social development and ensure people's lives. Pipeline maintenance is a necessary means to ensure its normal mechanism and function. The repair work of the pipeline is mainly carried out by two repair methods: excavation repair and trenchless repair. Among them, excavation and repair means directly excavating the pipeline, and then repairing the pipeline to be repaired. The environmental problems and economic impact of the excavation and repair of the pipeline are relatively large, and it is easy to cause safety accidents such as damage to the remaining pipelines, and it is easy to occupy road traffic. . Instead of excavation repair, low-impact...

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Problems solved by technology

[0003] Existing drainage pipes or water supply pipes mostly use metal pipes. Because metal has strong toughness, it can still work as usual after plastic deformation. Underground metal pipes are easily squeezed and cause longitudinal deformation and collapse. Although the pipe is not broken, the inner diameter of the pipe is reduced, the water flow rate is reduced, and local weak points are formed in the collapsed part. It is easy to collapse under the action of water pressure for a long time

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