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Non-excavation construction method of ultra-large-diameter poly ethylene (PE) drain pipe

A technology with super large diameter and construction method, which is applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc. It can solve problems such as weak butt joints of pipe bodies, poor sealing of pipe bodies, and difficulty in pipe traction, etc., to achieve The butt joint of the pipe body is firm, the sealing performance of the pipe body is strong, and the effect of traction is small

Active Publication Date: 2014-01-22
甘肃先锋管道制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned scheme solves the existing problem of non-excavation laying of pipelines with a diameter of more than 0.8 meters to a certain extent, but this scheme still exists when laying super-large-diameter pipes, such as pipes with a diameter of more than 1.6 meters: the construction is difficult, The pipe body is difficult to pull, the construction pit that needs to be excavated is large, it is easy to slip off when dragging, the pipe body is easy to break when dragging, the pipe body is easy to scratch, the pipe body is poorly closed, and the pipe body is not firmly connected.

Method used

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  • Non-excavation construction method of ultra-large-diameter poly ethylene (PE) drain pipe
  • Non-excavation construction method of ultra-large-diameter poly ethylene (PE) drain pipe

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as Figure 1-2 As shown, the non-excavation construction method of the super-large-diameter PE drainage pipe includes: A, drilling: according to the geological conditions of the designed pipeline and the previous drilling, the inclined hole 11 is first drilled downwards, and then drilled horizontally Get out the straight hole 12 communicating with the lower end of the inclined hole 11, dig out the first construction pit 13 that is vertically arranged and communicated with the inclined hole 11 and the straight hole 12 at the junction of the inclined hole 11 and the straight hole 12, and in the straight hole 12 The other end digs out the second construction pit 14 that is vertically arranged and communicated with the straight hole 12; B, equipment installation: install the hoist 15 in the first construction pit 13, connect t...

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Abstract

The invention belongs to the technical field of pipeline laying and particularly relates to a non-excavation construction method of an ultra-large-diameter poly ethylene (PE) drain pipe. The technical problem that an existing ultra-large-diameter PE drain pipe is high in laying difficulty and the like is solved. The non-excavation construction method comprises the steps: A, drilling; B, device installation; C, pipe distribution for the first time; D, continuous pipe distribution; E, pipe distribution completion. The non-excavation construction method of the ultra-large-diameter PE drain pipe has the advantages that the construction is simple, the traction difficulty of an ultra-large-diameter PE drain pipe body is low, excavated construction pits are small, slippage does not easily occur during dragging, the pipe body does not easily break and is not easily scratched during dragging and is high in sealing performance, the inside of the pipe body is not required to be cleaned, and abutting joint of the pipe body is firm.

Description

technical field [0001] The invention belongs to the technical field of pipeline laying, and in particular relates to a non-excavation construction method of a super-large diameter PE drainage pipe. Background technique [0002] With my country's "Twelfth Five-Year Plan" and "Thirteenth Five-Year Plan" and the planning of the Ministry of Housing and Urban-Rural Development and the acceleration of urbanization, and due to the launch of my country's "rain and sewage diversion" project, the implementation of the plan to solve "urban waterlogging", super large diameter pipes There are more and more laying pipes with a diameter of more than 1600mm. The existing pipe laying methods generally include the following types: excavation laying, trenchless dragging laying, pipe jacking laying, immersed pipe laying, lining laying, public Ditch laying etc., although above-mentioned multiple laying methods are arranged, still can't satisfy the needs of current national economic development. F...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/028
CPCF16L1/028F16L1/036
Inventor 黄楠伟鲁寅飞黄应松郦春光钱超雍
Owner 甘肃先锋管道制造有限公司
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