Construction method for repairing drainage pipeline by newly adding lining pipe

Abstract

The invention discloses a construction method for repairing a drainage pipeline through a newly-added lining pipe. The construction method comprises the following steps that (1) a needed operation section is determined through a detection tool; (2) preliminary pipeline detection operation is carried out, and a specific construction scheme is formulated; (3) carrying out pipeline cleaning operation, and carrying out detection operation again; and (4) pipeline repairing operation is conducted, specifically, an auxiliary lining material is fed into an old pipeline in an overturning mode to play a role in protecting the resin lining pipe, then the lining pipe is fed into the pipe in an overturning mode, under the condition that the lining pipe is expanded through air pressure or water pressure, steam circulation heating is adopted to enable the wall of the lining pipe to be solidified, and finally redundant materials are cut off, so that the pipeline is repaired. Sealing is performed, so that a new continuous high-strength lining pipe can be formed in the old pipe; (5) carrying out secondary pipeline detection operation; and (6) recovering the original inspection well and the road surface. The method does not need to excavate the road surface, is short in construction period, is environment-friendly and economical, and has relatively high social benefits and economic benefits.

Description

technical field [0001] The invention relates to the technical field of trenchless pipes, in particular to a construction method for repairing drainage pipes with newly added lining pipes. Background technique [0002] With the construction of urban transportation facilities - roads, bridges and underground rail transit, etc., drainage facilities used to protect the water quality of public waters and urban public environment have also developed greatly in recent years. In the construction, maintenance and management of urban infrastructure, it is often found that underground pipelines are broken, pipeline joints are disconnected, and groundwater seeps, etc., which cause roads to sink or even collapse, thus affecting traffic and normal municipal drainage. , If the traditional road excavation and repair technology is used for repair, not only the construction period is long, but also the traffic is affected, and the construction safety and quality cannot be effectively guarante...

AI Technical Summary

Problems solved by technology

In the construction, maintenance and management of urban infrastructure, it is often found that underground pipes are broken, pipe joints are disengaged, and groundwater seeps, etc., which cause roads to sink or even collapse, thereby affecting traffic and normal municipal drainage. If the traditional road excavation repair technology is used for repair, not only the construction period will be long, but also the traffic will be affected, and the construction safety and quality will not be effectively guaranteed

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