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Construction method of reinforced concrete jacked pipe underground T-shaped butt joint

A reinforced concrete pipe, reinforced concrete technology, applied in the direction of pipes/pipe joints/pipe fittings, pipe laying and maintenance, machinery and equipment, etc.

Active Publication Date: 2014-05-21
SHANGHAI ERSHIYE CONSTR CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this construction method has significant limitations when pipes intersect perpendicularly and have different diameters

Method used

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  • Construction method of reinforced concrete jacked pipe underground T-shaped butt joint
  • Construction method of reinforced concrete jacked pipe underground T-shaped butt joint
  • Construction method of reinforced concrete jacked pipe underground T-shaped butt joint

Examples

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Effect test

Embodiment Construction

[0021] The present invention is further illustrated below by specific examples.

[0022] Such as figure 1 , figure 2 and image 3 As shown, two sections of reinforced concrete jacking pipes 1 and 5 (with diameters of 2.7m and 2.2m respectively) are jacked from different directions. The reinforced concrete pipe jacking 1 with a diameter of 2.7m is vertically connected, and the reinforced concrete pipe jacking 2 with a diameter of 2.2m is connected with the pipe jacking 1 with a diameter of 2.7m in an underground T-shape. The specific steps are as follows:

[0023] Step 1. First carry out the construction of the pipe jacking well involved in the underground docking, and then number the sections of the longitudinally penetrating reinforced concrete pipe jacking 1 (2.7m in diameter) on the drawing. The section that is jacked first is the first section, in order Arrange, find out the numbers of the 2 sections of reinforced concrete pipe 1 at the T-shaped docking position, and m...

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Abstract

The invention relates to a construction method of the reinforced concrete jacked pipe underground T-shaped butt joint. The construction method is characterized by including the steps of (1) numbering longitudinal jacked pipes, (2) using steel pipes as pipe bodies at the butt joint position, (3) jacking the pipes through a pipe jacking machine, (4) replacing the reinforced concrete pipes with the steel pipes when the pipes are jacked to the butt joint position, (5) jacking transverse reinforced concrete pipes through the pipe jacking machine, (6) carrying out high-pressure jet grouting pile reinforcing on the periphery of the butt joint pipe section, (7) disassembling the pipe jacking machine, and retaining tool pipes, (8) carrying out welding on the tool pipes and the steel pipes at the butt joint position, (9) carrying out cutting to enable the T-shaped butt joint position to be completely through, and (10) carrying out concrete pouring on pipe sections of the whole T-shaped butt joint position. According to the construction method, roads are not damaged, the construction noise is low, influences on the roads, traffic and the surrounding environment are small, the construction period is short, and the aim of protecting the environment is truly achieved.

Description

technical field [0001] The invention relates to the field of non-excavation construction of underground pipelines, in particular to a construction method for underground T-shaped butt joint of reinforced concrete pipe jacking. Background technique [0002] With the continuous development of urban construction, pipe jacking construction technology is increasingly used in the construction of various underground pipelines. The pipe jacking technology is to first set up a support and install a hydraulic jack in the working well, and use the thrust between the main jacking cylinder and the pipeline relay to push the tool pipe or roadheader from the working well through the soil layer to the receiving well for lifting. At the same time, following the tool pipe or roadheader, the prefabricated reinforced concrete pipe joint or steel pipe joint is jacked into the ground to complete the construction process of pipeline laying. Pipe jacking construction has the advantages of less...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/036
CPCF16L1/036
Inventor 郝鑫赵建立杜建华
Owner SHANGHAI ERSHIYE CONSTR CO LTD
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