Pipe expansion and drawing construction process for reorganization and expansion of drainage pipe network

Abstract

The invention discloses a pipe expansion and drawing construction process for reorganization and expansion of a drainage pipe network. The construction process comprises the following specific steps that pre-troubleshooting is carried out; the application of road occupation, road breaking and removal is carried out; measurement and setting out as well as fence setting are carried out; blockage iscarried out; flow guiding is carried out; blockage removal is carried out; after pipeline cleaning is finished, the detection personnel carry out CCTV detection on the pipe section; pretreatment, roadbreaking, comprehensive pipeline check and verification and CCTV detection are carried out; a static pipe expansion method is adopted for construction, a hydraulic oil cylinder is used for providingthe tension traction for pulling a cutter and a pipe expansion head, the pipe expansion head is connected with a new pipeline, when the cutter cuts an old pipeline under pulling of a pull rod, meanwhile, the pipe expansion head extrudes the old pipeline, fragments enter the surrounding soil, and paving of the new pipeline is also completed; and site cleaning carried out. The pipe expansion and drawing construction process, comprising the steps, for reorganization and expansion of the drainage pipe network is adopted, so that the problem of replacement of plastic pipes which cannot be solved byother pipe expansion methods is solved, moreover, the process is the unique and feasible non-excavation method for updating a small pipe diameter plastic pipeline, meanwhile, the treatment pressure of a sewage plant is reduced, and the water environment is protected.

Description

technical field [0001] The invention relates to the technical field of reconstruction and expansion of drainage pipe networks, in particular to a construction technique for expansion and expansion of drainage pipe networks. Background technique [0002] At the present stage of our country, the rapid development of social economy has greatly promoted the process of urbanization. The new community will be built accordingly, along with the construction of the community, the municipal supporting facilities, especially the drainage pipe network closely related to residents' life will be built accordingly. Correspondingly, with the passage of time, the drainage pipe network of the old community, which has been constructed for a long time, has gradually exposed some reasons, affecting the normal life of the residents of the community. Therefore, a general survey of the current status of drainage pipes was carried out in the old communities in the jurisdiction, mainly to investigat...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction technique of expansion and expansion of drainage pipe network, which solves the replacement problem of plastic pipes that cannot be solved by other expansion methods, and is the only feasible non-excavation method for updating plastic pipelines with small diameters method, while reducing the treatment pressure of the sewage plant and protecting the water environment

Images