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Assembling form and supporting method of prefabricated plastic pipe in soil

A plastic pipe and assembled technology, which is applied in the direction of earthwork drilling, tunnel, tunnel lining, etc., can solve the problems of large-diameter pipe transportation and construction inconvenience, and achieve the effect of convenient transportation and construction, good quality and high strength

Inactive Publication Date: 2011-12-28
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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  • Assembling form and supporting method of prefabricated plastic pipe in soil
  • Assembling form and supporting method of prefabricated plastic pipe in soil
  • Assembling form and supporting method of prefabricated plastic pipe in soil

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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 relates to an assembling form and a supporting method of an assembled plastic pipeline in soil, which provides a supporting technology for supporting a new type of tunnel or pipeline excavation technology, and belongs to the field of non-excavation underground pipeline support. The assembling form and supporting method are to cut the integral plastic pipe into several segments in the cross section, transport them to the sleeve at the tail of the self-propelled roadheader in the soil in turn, and rely on the tripod support for assembling and connecting. Repeat the above steps to complete the segment assembly of the next pipe section by means of through seam or staggered seam assembly, and then connect the previous pipe section with the circumferential splicing seam of this pipe section. After the self-propelled roadheader drives the sleeve to advance for a certain distance, the subsequent pipe joints are assembled in sequence, and a support channel is formed at the rear of the self-propelled roadheader and the rear matching sleeve. This method can cooperate with the self-propelled excavation technology to realize the sharp turn function that is currently in high demand, and has the advantages of safety, convenience, and high efficiency.

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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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/04E21D11/12
Inventor 卢清国
Owner BEIJING UNIV OF TECH