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A pipe jacking system with positioning function and its construction method

A pipe jacking and functional technology, which is applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc. It can solve problems such as deviations in pipe placement, increased coaxiality errors of pipe joints, and track impact collisions, etc.

Active Publication Date: 2022-05-20
山西太水市政工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the pipe jacking construction process, the laid pipe joints are generally lowered to the track at the bottom of the working well by hoisting. However, due to deviations in the placement of the pipeline during the laying process of the pipeline, it is inevitable to cause impact and collision on the track, resulting in later deformation of the track Seriously, the coaxiality error of subsequent pipe joints gradually increases, affecting the normal butt joint of pipe joints

Method used

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  • A pipe jacking system with positioning function and its construction method
  • A pipe jacking system with positioning function and its construction method
  • A pipe jacking system with positioning function and its construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0046] refer to figure 1 , The pipe jacking system includes a base 1, a main jack 2, an annular support 3, a guide rail 4, a positioning mechanism 5 and a pipe jacking machine 6.

[0047] The base 1 is installed in the working well of the construction site, and the top surface of the base 1 serves as a construction platform to provide installation foundations for various institutions.

[0048]The main jack 2 is installed on the construction platform of the base 1, and the piston rod of the main jack 2 is set towards the predetermined laying direction of the pipeline; the back of the main jack 2 is buried with a reinforced concrete structure, and the lower part is buried in the soil layer The upper part is exposed outside to provide supporting force for the main jack 2 .

[0049] The piston rods of the main jack 2 are distributed in a ring shape, and one side of the annular support 3 is fixedly connected with the piston rod of the main jack 2, and the other side is used for pu...

Embodiment 2

[0063] The difference between the embodiment of the present application and the embodiment 1 is that the mounting bracket 51 of the positioning mechanism 5 is slidably installed on the annular support 3, and the positioning mechanism 5 is equipped with independent jacking or retracting power.

[0064] refer to Figure 4 , the inner ring surface of the annular support 3 is provided with a connecting groove 31 along the axial direction, and the connecting rail 511 is fixedly connected to the mounting frame 51. 3 for a slip fit.

[0065] The side of the main jack 2 facing the mounting frame 51 is fixedly connected with an auxiliary jack 9, and the piston rod of the auxiliary jack 9 can be fixedly connected with the mounting frame 51 through a flange; the auxiliary jack 9 works to drive the mounting frame 51 to slide relative to the annular support 3, The positioning mechanism 5 can be retracted in the main jack 2 and the annular support 3; Cooperate, carry out jacking to pipe s...

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Abstract

The application discloses a pipe jacking system with positioning function and its construction method. The pipe jacking system includes a base with a construction platform; a main jack is installed on the construction platform of the base to provide power for pushing pipe joints ; the ring support is installed on the main jack for pushing the pipe joint; two sets of guide rails are detachably arranged on the construction platform of the base along the jacking direction of the main jack; the pipe joint is supported on the guide rail, and the pipe joint and the described The annular support is coaxial; the annular support is coaxially equipped with a positioning mechanism, the positioning mechanism supports the inner wall of the pipe joint, and the auxiliary pipe joint is coaxially arranged with the annular support. The pipe jacking system of this application uses the positioning mechanism to exert force on the pipe joints from the inside of the pipe joints, assisting the coaxial distribution of adjacent pipe joints, and avoiding errors or even damage at the butt ends of adjacent pipe joints due to deviation, which will affect the pipeline. sealing effect.

Description

technical field [0001] The application relates to the field of pipeline construction, in particular to a pipe jacking system with a positioning function and a construction method thereof. Background technique [0002] Pipe jacking construction technology has become the main means of non-excavation construction of urban underground pipe joints, and has been widely used in water supply and drainage, sewage treatment, communication, power pipe joints and other fields. [0003] The construction steps of the pipe jacking construction are mainly to set the support in the working well and install the main jack first. The pipe joints to be laid follow the pipe jacking machine, and the pipe jacking machine digs into the soil layer under the action of the main jack thrust. The excavated soil is discharged by the soil pump or screw conveyor or discharged through the pipe joint through the mud pump in the form of mud; after pushing a pipe joint, the main jack retracts, hoisting another ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/036F16L1/06
Inventor 王刚刘志勤孙召敬
Owner 山西太水市政工程有限公司