Heavy caliber pipe-jacking butt joint technique

A large-diameter, pipe jacking technology, used in pipes/pipe joints/fittings, infrastructure engineering, pipeline laying and maintenance, etc., can solve the problems of complex underground pipelines and different buried depths, and achieve low cost and risk. Market prospects and the effect of shortening the construction period of long-distance pipe jacking

Active Publication Date: 2009-06-24
SHANGHAI FOUND ENG GRP
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  • Abstract
  • Description
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Problems solved by technology

[0004] The present invention aims to solve the technical problems of large-diameter pipe jacking construction in areas such as traffic arteries and regional hubs, w

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  • Heavy caliber pipe-jacking butt joint technique
  • Heavy caliber pipe-jacking butt joint technique
  • Heavy caliber pipe-jacking butt joint technique

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[0036] The patent of the present invention will be further explained below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the patent of the present invention and not to limit the scope of the patent of the present invention. In addition, it should be understood that after reading the content taught by the patent of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0037] The steps of the large-diameter pipe jacking process of the present invention are as follows:

[0038] 1. Soil improvement in the docking area ( figure 1 ,2)

[0039] In order to ensure the smooth docking of the jacking pipe, the position of the two jacking tool pipes should be restricted to prevent unnecessary lateral displacement of the tool pipes during the dockin...

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Abstract

The invention relates to a large-diameter jacking pipe butting process. The process comprises the following steps: reconstructing large-diameter jacking pipe tool pipe by improving soil mass of a butting area; performing plugging construction of the butting area by air pressure; and finishing butting of the large-diameter jacking pipes. The process can satisfy the requirement for large-diameter pipe jacking construction in a restricted area such as a traffic main artery, a bottleneck position of a regional junction or an area in which pipelines can not be avoided, and satisfy the requirement of shortening a long-distance pipe jacking construction period. The large-diameter jacking pipe butting process produces hardly any effect on road traffic, surrounding pipelines, lives of people, and has good social benefit. The large-diameter jacking pipe butting process can realize a plurality of impossible things in the process of underground pipeline construction, and has the advantages of low engineering cost, low risk and wide market prospect.

Description

technical field [0001] The invention relates to a pipe jacking construction technology for underground pipelines, especially a pipe jacking construction technology used in large-diameter pipe jacking projects, which can solve the pipe jacking construction under complex or restricted conditions and the pipe jacking butt joint used in long-distance pipe jacking projects construction process. Background technique [0002] With the widespread use of underground pipelines in transportation, energy, environmental governance, power transportation, urban drainage, etc., intricate pipeline traffic has formed underground. Therefore, when implementing new pipeline projects, especially in areas such as traffic arteries and regional hubs, the underground pipelines are complicated and buried in different depths, which brings difficulties to the construction of large-diameter pipe jacking, and many bottlenecks do not even have construction conditions. Pipeline construction is faced with t...

Claims

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Application Information

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IPC IPC(8): F16L1/036E02D3/00
Inventor 刘鸿鸣
Owner SHANGHAI FOUND ENG GRP
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