Joint sealing and stress transmission monitoring device and method under deflection state of pipe-jacking pipe joint

A monitoring device and sealing testing technology, applied in measuring devices, using liquid/vacuum for liquid tightness measurement, and applying stable tension/pressure to test material strength, etc., can solve the problem of poor joint sealing performance, pipe joint axis Deviation, deflection, etc.

Pending Publication Date: 2022-03-15
FOSHAN ELECTRIC POWER DESIGN INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the construction jacking and after the construction is completed, there will be a series of problems due to the deflection of the pipe joints
During the jacking construction process, due to the complexity of the ground conditions, the pipe joints will have a certain axis deviation, and then the deviation needs to be corrected. During this process, the pipe joints may be damaged due to the sealing performance of the joints in the deflected state. Not good, for example, the pipe joints are damaged and the joints leak water; in addition, after the pipe jacking construction is completed, the foundation may settle unevenly, causing shear or deflection between pipe joints
In the case of pipe joint deflection, there is no specific device to test the joint sealing performance of the pipe joint
[0003] In addition, in the deflected state of the pipe jacking joints, the force transmission between the pipe jacking joints is not clear, and further research is needed

Method used

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  • Joint sealing and stress transmission monitoring device and method under deflection state of pipe-jacking pipe joint
  • Joint sealing and stress transmission monitoring device and method under deflection state of pipe-jacking pipe joint
  • Joint sealing and stress transmission monitoring device and method under deflection state of pipe-jacking pipe joint

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, and the content of the present invention is not limited to the following embodiments.

[0030] A joint sealing and force transmission monitoring device in the deflected state of a pipe jacking pipe joint, the device is composed of a fixing and loading device, a joint sealing test device and a pipe joint force monitoring device; the fixing and loading device consists of a test pit, Composed of guide rails, jack brackets, deflection jacks, and main jack jacks, the test pit includes a bottom plate, side walls, bearing walls, and platform brackets; the side walls are located on the side of the test pit as a retaining structure; the bearing walls Designed according to the calculation formula of the bearing capacity of the retaining wall, it is used to bear the jacking force and reaction force of the main jacking jack. The force-bearing wall includes the front...

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Abstract

The invention belongs to the technical field, relates to the technical field of non-excavation engineering pipe jacking, and particularly relates to a device and a method for monitoring joint sealing and stress transmission in a pipe jacking section deflection state. The invention provides a device for monitoring the sealing and stress transmission of a joint in a deflection state of pipe-jacking pipe joints by exploring the influence on the sealing performance of the joint of the pipe-jacking pipe joints and the stress transmission mode between the pipe joints, and provides technical support and guidance for the deflection problem of the pipe joints in pipe-jacking construction.

Description

technical field [0001] The invention relates to the technical field of pipe jacking in trenchless engineering, in particular to a device and method for monitoring joint sealing and force transmission in a deflected state of pipe jacking pipe joints. Background technique [0002] In recent years, with the acceleration of social modernization, trenchless technology, especially pipe jacking technology, has been rapidly promoted and applied. However, during the construction jacking and after the construction is completed, there will be a series of problems due to the deflection of the pipe joints. During the jacking construction process, due to the complexity of the ground conditions, the pipe joints will have a certain axis deviation, and then the deviation needs to be corrected. During this process, the pipe joints may be damaged due to the sealing performance of the joints in the deflected state. Not good, for example, the joints of the pipe joints are damaged and the pipe j...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01M3/04
CPCG01N3/12G01M3/04G01N2203/0003G01N2203/0019G01N2203/0048G01N2203/0075G01N2203/0274G01N2203/0676G01N2203/0682
Inventor 曾川峰罗毅初邬彪彪梁唐杰傅志浩柳春芳聂敬玉陈志婷刘洁雅何燕玉刘欣婕
Owner FOSHAN ELECTRIC POWER DESIGN INST
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