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Assembly form and supporting method for in-soil assembled plastic pipes

A plastic pipe and assembled technology, which is applied in earthwork drilling, tunnel, tunnel lining, etc., can solve the problems of inconvenient transportation and construction of large-diameter pipes, achieve convenient transportation and construction, strong corrosion resistance, and reduce other related costs Effect

Inactive Publication Date: 2009-12-02
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the requirements of self-propelled tunnel excavation technology for the construction of large-diameter pipelines, even if light-weight plastic pipelines are used, there are still difficulties in the transportation and construction of large-diameter pipes.

Method used

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  • Assembly form and supporting method for in-soil assembled plastic pipes
  • Assembly form and supporting method for in-soil assembled plastic pipes
  • Assembly form and supporting method for in-soil assembled plastic pipes

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing:

[0032] In this embodiment, the pipe is divided into 3 pieces and assembled through the joints as an example, and its assembly form and supporting method are described:

[0033] 1) First cut the large-diameter integral plastic pipe longitudinally on the ground into a pipe segment with a length of L; III segment. The value range of the length L of each pipe section is: 300mm≤L≤2000mm;

[0034] 2) After the self-propelled tunneling machine in the soil completes a cycle of tunneling in front, the three pieces of segments belonging to the first segment 1 that have been cut are sequentially transported to the sleeve at the tail of the tunneling machine;

[0035] 3) Use the supporter to re-support the N pieces of segments in the sleeve at the tail of the self-propelled roadheader to form pipe joints;

[0036] 4) Connect the longitudinal splicing seams between the segments respe...

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Abstract

The invention discloses an assembly form and a supporting method for in-soil assembled plastic pipes, provides complete technology for supporting after a heading machine moves forward of novel tunnel or channel excavation technology, and belongs to the field of trenchless underground pipe supporting technology. The assembly form and the supporting method comprise the following steps: cutting an integral pipe into a plurality of pipe pieces from a cross section, sequentially carrying the pipe pieces into a sleeve at the rear part of a self-drive heading machine in soil, and assembling the pipe pieces by using foot stand supports; repeating the previous step to complete the assembly of the pipe pieces of a next pipe in a mode of straight joint or break joint and connecting a circumferential joint of the two pipes; and after the self-drive heading machine drives the sleeve to move a certain distance, assembling the follow-up pipes and sequentially forming a supporting channel behind the self-drive heading machine and the rear complete sleeve with the advance of the self-drive heading machine and the rear complete sleeve. The method can realize an emergent turning function which is strongly demanded at present together with the self-drive heading technology and has the advantages of safety, convenience, high efficiency and the like.

Description

technical field [0001] The invention relates to an assembling form and a supporting method of an assembled plastic pipeline in soil, which provides a supporting technology for a new type of tunnel (pipe) excavation technology and a supporting technology after the advance of a boring machine, and belongs to the field of non-excavation underground pipeline support. Background technique [0002] Currently widely used trenchless construction techniques, such as shield method and pipe jacking method, have exposed some limitations and deficiencies, such as the limitation of advancing length and turning flexibility, etc. These limitations make urban underground pipeline network construction and underground Space development is getting more and more difficult. The emergence of self-propelled tunnel (pipe) construction technology and corresponding excavation equipment overcomes these difficulties, and explores a new construction theory and method in the research field of trenchless t...

Claims

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Application Information

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IPC IPC(8): E21D11/04E21D11/12
Inventor 卢清国
Owner BEIJING UNIV OF TECH
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