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A pipeline repair, trenchless technology, applied in the direction of special pipes, pipe components, pipes/pipe joints/fittings, etc., can solve problems such as affecting the underground pipelines around municipal traffic, and achieve changes in flow, high intensity and short construction period. Effect
Inactive Publication Date: 2020-10-09
上海懿诚市政工程有限公司
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However, the use of excavation-type pipeline repair technology for pipeline repair operations requires isolation of the construction area on the road surface and excavation of pipelines, which affects municipal traffic and surrounding underground pipelines. There is room for improvement in existing technologies
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[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0035] A CIPP trenchless pipeline repair method, the construction personnel first need to determine the operation section and prepare the hose lining according to the test data, and then perform pipeline cleaning and pipeline inspection operations, so that the inner wall of the parent pipe (that is, the pipeline to be repaired) and the inner wall of the parent pipe The internal conditions of the pipe are combined with the construction requirements; then the hose lining soaked in thermosetting resin is tightly combined with the parent pipe to form a pipe-in-pipe structure, and the end of the hose lining is smoothed; finally, the repaired new pipeline (ie The pipe-in-pipe structure formed by the hose lining and the parent pipe) is inspected and accepted and the road surface is restored, thereby completing the non-excavation pipeline repair operation. The CIPP n...
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Abstract
The invention discloses a CIPP trenchless pipeline repair method, and relates to the technical field of municipal pipeline repair. The CIPP trenchless pipeline repair method comprises the steps that S1, an operation section is determined, specifically, the position of a main pipe is determined, and a hose lining is manufactured; S2, pipeline cleaning is conducted, specifically, pipeline cleaning operation is conducted twice; S3, cleaning detection is conducted, specifically, the inner wall of a cleaned pipeline is detected by a pipeline CCTV shooting detection system; S4, placement operation is conducted, specifically, a hose impregnating resin turnover lining entering method or a hose impregnating resin lining pull-in method is selected to place and solidify the hose lining; S5, end opening treatment is conducted, specifically, the excessive portions, located at the two ends of the main pipe, of the hose lining are cut off, and end openings are reinforced and transitioned by stainlesssteel linings; S6, repair examination operation is conducted, specifically, the inner wall of the repaired pipeline is detected by the pipeline CCTV shooting detection system; and S7, the road surface is recovered. According to the CIPP trenchless pipeline repair technology, the hose lining is solidified on the inner wall of the main pipe, the replacement of the main pipe of the excavation of theroad surface is not required, and therefore the purpose of trenchless repair of the municipal pipeline is achieved.
Description
technical field [0001] The invention relates to the technical field of municipal pipeline repair, in particular to a CIPP non-excavation pipeline repair method. Background technique [0002] Along with the construction of urban transportation facilities such as roads, bridges and underground rail transit, drainage facilities and municipal pipeline repair technologies for protecting the water quality of public waters and urban public environments have also been greatly developed. [0003] In the construction and maintenance of urban infrastructure, phenomena such as rupture of underground pipelines, disengagement of pipeline joints, and leakage of groundwater will be found, which will cause road subsidence and even collapse, affecting traffic and normal municipal drainage. Usually, it is necessary to use excavation repair technology to repair the pipeline, that is, excavate the exposed pipeline on the ground, and complete the repair work by repairing or even replacing the pip...
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