Dismantling and backfilling integrated device suitable for underground flexible pipeline and working method thereof

Abstract

The invention discloses a dismantling and backfilling integrated device suitable for an underground flexible pipeline. The dismantling and backfilling integrated device comprises a machine body, and a telescopic pipeline cutting and backfilling mechanism, a pipeline withdrawing mechanism and a pipeline decomposing mechanism are arranged on the machine body. During construction, firstly, a telescopic pipeline cutter is fed into a pipeline through the telescopic pipeline cutting and backfilling mechanism, and the pipeline is cut off by the telescopic pipeline cutter; after the pipeline is cut off, the telescopic pipeline cutter is detached, a soil body backfilling compactor is installed, and the cut-off pipeline is gradually filled with a soil body and extruded to be dense; and finally, a power roller of the pipeline withdrawing mechanism presses the surface of the pipeline, the power roller rotates to extract the cut-off pipeline out of the soil body, and meanwhile, when the pipeline penetrates through the pipeline decomposing mechanism, a cutting knife wheel on the pipeline decomposing mechanism rotates at a high speed to decompose and cut the removed pipeline. The underground waste pipeline can be efficiently dismantled, compaction and backfilling of the soil body can be achieved, disturbance is small, and land subsidence can be effectively controlled.

Description

technical field [0001] The invention relates to the field of demolition and construction of underground pipelines in municipal engineering, in particular to a demolition-backfill integration device 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 and affect each other, and the relationship between various above-ground and underground facilities has become particularly complicated. In particular, abandoned underground pipelines not only can no longer provide corresponding services for the city, but also occupy a large amount of valuable underground space development, hindering the upgr...

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

Images