Assembled jacking pipe

A prefabricated, pipe-jacking technology, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of restricting the development of pipe-jacking, and achieve the effects of fast and convenient assembly, high structural strength, and cost reduction

Inactive Publication Date: 2013-10-23
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current pipe jacking structure is a full-ring jacking method, and the size of pipe joints is restricted by transportation conditions, which limits the development of pipe jacking in the field of large-diameter tunnels

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one: if figure 1 As shown, this embodiment specifically relates to a prefabricated reinforced concrete pipe jacking. In the pipe jacking construction project, the current pipe jacking structure is the whole ring jacking method, and the size of the pipe jacking is restricted by the transportation conditions, thus limiting The development of pipe jacking in the field of large diameter tunnels. For this reason, the pipe jacking in this embodiment adopts the form of a plurality of segments assembled into a ring, so as to overcome the difficulties existing in actual transportation.

[0024] Such as figure 1 , 4 , 6, the pipe jacking in this embodiment is specifically assembled from the upper segment 1 and the lower segment 2, the upper segment 1 and the lower segment 2 have the same structure, and can be pre-cast in batches in the factory workshop or construction site .

[0025] The following will take the lower segment 2 as an example to illustrate: the lower...

Embodiment 2

[0033] Embodiment two: if Figure 7 As shown, this embodiment specifically relates to an assembled reinforced concrete pipe jacking, which is assembled by three segments 11. Since the circumferential assembly surface between the three segments 11 is not in a horizontal or vertical position, Therefore, the positioning structure of the positioning hole and the positioning pin in the first embodiment cannot be adopted. Therefore, in this embodiment, when each ring jacking pipe is composed of three or more segments 11 assembled in the circumferential direction, the positioning structure of the circumferential assembly surface between adjacent segments adopts concave-convex seam positioning, that is, each There is an outer protrusion 14 on one circumferential assembly surface of the block segment, and an inner groove 13 on the other circumferential assembly surface, and the positions and shapes of the two are matched one by one so that they can be controlled when assembled into a r...

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Abstract

The invention belongs to the technical field of jacking pipe construction, and particularly relates to an assembled reinforced concrete jacking pipe. The assembled jacking pipe is characterized in that each circle of jacking pipe is formed by annularly splicing at least two pipe pieces. The assembled jacking pipe has the advantages of solving the transportation problem of large-diameter jacking pipes as the sectional assembled pipe piece mode is adopted and each pipe piece can be precast in a factory; and the assembled jacking pipe is reduced in cost in comparison with a shield tunnel, is simple in structure, convenient and fast in splicing, and high in structural strength of the assembled pipe section.

Description

technical field [0001] The invention belongs to the technical field of pipe jacking construction, and in particular relates to an assembled reinforced concrete pipe jacking. Background technique [0002] At present, with the rapid development of urban infrastructure construction, pipe jacking construction is more and more widely used in underground engineering. Pipe jacking construction is a non-excavation pipeline buried construction technology, which can cross roads, Railways, ground buildings, underground structures and various underground pipelines. Therefore, the use of pipe jacking can reduce a lot of preliminary work, including building demolition and enclosure, relocation of public pipelines, etc., and reduce pressure on urban traffic. It is an urban non-excavation underground An important construction method for space development. [0003] The pipe jacking construction relies on the thrust of the main jacking cylinder and the relay room between the pipelines to pus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10
Inventor 周质炎彭春强翟之阳白彦峰王刚
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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