An integrated demolition and backfill device suitable for underground flexible pipelines and its working method

Abstract

The invention discloses an integrated dismantling and backfilling device suitable for underground flexible pipelines. During construction, the retractable pipe cutter is first sent into the pipeline through the telescopic pipe cutting and backfill mechanism, and the pipe is cut off by the retractable pipe cutter; after the pipe is cut, the retractable pipe cutter is disassembled, and the soil is backfilled and compacted The device gradually fills the cut pipe with soil and squeezes it compactly; finally, the power roller of the pipe exit mechanism presses the surface of the pipe, and the power roller rotates to extract the cut pipe from the soil, and at the same time the pipe passes through the When the pipe dismantling mechanism is used, the cutting wheel on the pipe dismantling mechanism rotates at a high speed to disassemble and cut the removed pipe. The invention can efficiently dismantle abandoned underground pipes, realize compaction and backfilling of soil, has little disturbance, and can effectively control ground subsidence.

Description

technical field [0001] The invention relates to the field of underground pipeline dismantling construction in municipal engineering, in particular to an integrated device for dismantling and backfilling suitable for underground flexible pipelines and a working method thereof. Background technique [0002] As an important part of urban infrastructure, urban underground engineering pipelines are responsible for the transmission of urban water, energy, and information. Due to the lack of long-term planning in the early stage of the city, in the continuous upgrading and transformation, various municipal engineering pipelines continue to increase, affecting each other, and the relationship between various above-ground and underground facilities has become particularly complex. In particular, abandoned underground pipelines not only can no longer provide corresponding services for the city, but also occupy a lot of valuable underground space for development, hindering the upgrade ...

AI Technical Summary

Problems solved by technology

(3) The construction of demolition is complicated

With the increase in the complexity and scale of the structure of the pipeline being demolished, the traditional open excavation and demolition method is far from meeting the needs, and requires the close cooperation of multiple departments, multiple types of work, and various machinery

(4) The difficulty of safety work in demolition projects increases

Although the open-cut blasting method has the advantages of fast speed and obvious effect, it requires certain blasting conditions and sites, and the blasting is likely to pollute and damage the environment and existing pipelines, and the noise is large, and the blasting is likely to produce a lot of flying slag , may sometimes cause damage to surrounding structures, machinery or personnel, and air shock waves, flying objects, dust, and noise generated by blasting will also cause damage to surrounding existing buildings

[0009] Although the open-cut mechanical method and open-cut blasting method have the advantages of simple and mature construction technology and obvious effects, they require a large construction site and certain blasting conditions, and the construction cost is high. Existing pipelines and buildings are more likely to be disturbed and damaged

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