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Pipe-jacking installation method of bypass pipeline

An installation method and pipeline technology, applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of large restrictions and high construction costs, and achieve safety protection, low construction costs, and high production efficiency Effect

Active Publication Date: 2013-05-15
MCC5 GROUP CORP SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the construction of the pipe jacking method requires expensive professional equipment, and the construction is relatively limited by the site, and the construction cost is high.

Method used

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  • Pipe-jacking installation method of bypass pipeline
  • Pipe-jacking installation method of bypass pipeline
  • Pipe-jacking installation method of bypass pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A pipe jacking installation method for passing pipelines, the engineering pipeline 5 to be installed has a diameter of 300 mm, and is carried out in sequence as follows:

[0023] Pipeline setting out→excavating guide trench→making casing→topping front casing→connecting casing→topping rear casing→putting through engineering pipeline and installing, the specific steps are:

[0024] When excavating the guide ditch 2, excavate the guide ditch 2 on both sides of the obstacle 1 to be crossed, and fix the limit pile 3 in the guide ditch 2.

[0025] When making the casing, the casing such as figure 1 As shown, the inner diameter of the casing is 1 / 5 to 1 / 3 larger than the diameter of the engineering pipeline 5 to be penetrated, which is 400 mm. Uniform welding on the outer wall fixes 4 rectangular steel plates with a length of 100mm×width 50mm×thickness 20mm as the limiting plate 13, and half of the length of the limiting plate 13, that is, the 50mm part is welded on the outer...

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Abstract

The invention relates to the field of pipeline construction methods in metallurgical systems, in particular to a pipe-jacking installation method of a bypass pipeline. The pipe-jacking installation method of the bypass pipeline comprises the following steps of: paying a pipeline off->excavating a guideway->producing a sleeve->jacking a front sleeve->connecting the sleeves->jacking a rear sleeve->passing through an engineering pipeline and installing. The method is characterized in that: in the process of jacking the front sleeve, the front sleeve (11) is jacked ahead by a jacking device (4), and the rear sleeve (12) is then jacked till the front sleeve (11) is penetrated from the interior of the guideway (2) at the other side. The invention has low construction cost, short construction period, high installation quality and high production efficiency.

Description

technical field [0001] The invention relates to the field of pipeline construction methods for metallurgical systems, in particular to a pipe jacking installation method for passing pipelines. Background technique [0002] In pipeline construction projects, if there are no obstacles, slotting construction can be used, but pipelines often need to pass through roads, railways, buildings, rivers, etc., in this case, slotting construction is usually not allowed or the difficulty of slotting construction and The investment is relatively large, and the pipe jacking method is usually used for construction when it is impossible or difficult to open grooves. The pipe jacking method is a kind of underground excavation construction method used when underground pipelines pass through various obstacles such as railways, roads, rivers or buildings. After entering the working pit, use the hydraulic jack supported on the back seat of the foundation pit to press the pipe into the soil layer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/028F16L1/036F16L1/038
Inventor 赵宪彩何子房
Owner MCC5 GROUP CORP SHANGHAI
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