Trenchless built-in sleeve pipeline repairing equipment and method

Abstract

The invention discloses a trenchless built-in sleeve pipeline repairing method and equipment. The method includes utilizing two adjacent inspection shafts as operation space under the condition that the road surface is not excavated, adopting a pipeline to be repaired as a carrier, conveying short pipes into the pipeline to be repaired, dragging the short pipes to advance via a traction device, gradually completing hitting combination and connection between a latter short pipe and a former short pipe in an advancing process, realizing assembly of the short pipes in the pipeline to be repaired and finally forming a new pipeline; and then filling a gap between the new pipeline and the pipeline to be repaired in a grouting manner, leading the sleeved-in new pipeline to be stabilized and to be closely combined with the pipeline to be repaired to realize common pressure resistance strength, and accordingly realizing repair to the pipeline to be repaired. The equipment comprises a mechanical traction system and a hydraulic power system. The trenchless built-in sleeve pipeline repairing method and the equipment completely realize the trenchless technology, and have the advantages that continuousness is realized when the pipeline to be repaired crosses a road, construction time is short, engineering comprehensive manufacturing cost is low, influence to traffic is quite low, and the like.

Description

technical field [0001] The invention relates to a non-excavation built-in casing pipeline repair technology, in particular to a non-excavation built-in casing pipeline repair equipment and method for repairing or updating underground pipelines without excavating the surface at all. Background technique [0002] At present, in terms of updating and repairing drainage pipes, many construction techniques such as non-excavation expansion (expansion) pipe, rammed pipe method, interspersed pipe method, and lined pipe method are used. A rough description is as follows: [0003] 1. Non-excavation pipe expansion (expansion) process: [0004] The non-excavation pipe expansion (expansion) process is a hydraulic power equipment that splits and expands the old pipe at the same time by connecting, conveying, and pulling back the quick-loading rod, and pulling the cutting head and the expanding crushing head. Squeeze the old segment into the soil around the old pipe, drag the new pipe co...

AI Technical Summary

Problems solved by technology

[0016] Among these construction techniques, the non-excavation pipe expansion (pipe expansion) process and the non-excavation lining pipe repair process all need to excavate the operation pit, which is not available in many cases; moreover, the lining pipe completed by the lining process The rigidity is poor, and it is easy to collapse. Once it collapses, it will cause pipeline blockage. The non-excavation short pipe lining repair process needs to cut the entire plastic pipe into short sections, each short pipe is 60-70cm long, and heat them one by one in the underground. Fusion welding (limited by the placement of the welding machine and the applicable pipe diameter is limited), each welding joint takes 20 to 30 minutes, which is relatively troublesome, and the amount of construction completed per unit time is limited; at present, there is no special production in China for domestic Lined spools affect the development of spool lining technology

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