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A kind of demolition, diameter expansion roadheader and its construction method

A technology of roadheader and demolition, which is applied in the field of pipeline expansion and excavation, can solve the problems of low efficiency of pipeline demolition, expansion and excavation, and achieve the effect of wide application range, good integration and efficient excavation.

Active Publication Date: 2022-03-29
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a roadheader for demolition and diameter expansion and its construction method, which solves the problem of low efficiency of pipeline demolition and expansion in the prior art

Method used

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  • A kind of demolition, diameter expansion roadheader and its construction method
  • A kind of demolition, diameter expansion roadheader and its construction method
  • A kind of demolition, diameter expansion roadheader and its construction method

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Embodiment 3

[0037] Embodiment 3: a kind of demolition as described in embodiment 2, the construction method of expanding diameter boring machine, the steps are as follows:

[0038] S1: Hoist the demolition and expansion boring machine to the original pipeline, and debug it to the ready-to-work state;

[0039] S2: Start the demolition and diameter-expanding roadheading machine, the pipeline rescue device 3 of the demolition and diameter-expanding roadheader first demolishes the original pipeline, and the 4 pairs of expanding cutterheads of the demolition and diameter-expanding roadheader are demolished The tunnel is expanded. The details are as follows: S2.1: Adjust the extension length and opening angle of the suspension cutting arm 301 of the pipeline breaking device 3 according to the diameter of the original pipeline, so as to ensure that the suspension cutting hob 3013 on the suspension cutting arm 301 has a suitable suspension with the original pipeline. Cutting angle, the original ...

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Abstract

The invention discloses a roadheader for demolition and diameter expansion and a construction method thereof, which solves the problem of low efficiency of pipeline demolition and expansion in the prior art. The present invention includes a main machine for excavation and supporting equipment. The front end of the main machine for excavation is provided with an expanding cutter head which is connected with the main drive provided in the main machine for excavation. Disassemble the device, and expand the cutter head to correspond to the slag discharge system. The invention first destroys the original pipeline through the pipeline demolition device, and then expands the diameter of the original pipeline tunnel through the expanding excavation cutter head, so as to complete the demolition and diameter expansion at one time, and improve the construction efficiency.

Description

technical field [0001] The invention relates to the technical field of pipeline expansion and excavation, in particular to a demolition and expansion boring machine and a construction method thereof. Background technique [0002] With the rapid development of urbanization, the diameter of the original pipes no longer meets the demand, and the old pipes need to be demolished, expanded, and re-laid. Moreover, many underground sewage pipes are leaking due to aging, and new pipes are urgently needed to be replaced. [0003] When the commonly used pipe bursting method is used to break the pipeline, the pipe bursting tool is used to break the old pipe, the pipe fragments are squeezed into the surrounding soil layer, and the new pipe is pushed in at the same time, but this method has high geological requirements, and the old pipeline is buried deep. Shallow or non-compactable ground will cause the ground to bulge, and will also cause damage to adjacent pipelines. At the same time, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/01E02F5/00
CPCE21D9/01E02F5/00
Inventor 原晓伟姜礼杰王一新钱豪文勇亮杨航
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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