CN206530344U - A kind of jacking pipe joints antifriction injected hole construction - Google Patents
A kind of jacking pipe joints antifriction injected hole construction Download PDFInfo
- Publication number
- CN206530344U CN206530344U CN201720182859.8U CN201720182859U CN206530344U CN 206530344 U CN206530344 U CN 206530344U CN 201720182859 U CN201720182859 U CN 201720182859U CN 206530344 U CN206530344 U CN 206530344U
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- CN
- China
- Prior art keywords
- tube coupling
- antifriction
- slip casting
- stock tank
- pipe joints
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Abstract
A kind of jacking pipe joints antifriction injected hole construction, to reach the good result for only setting less slip casting point position just to realize thixotropic slurries antifriction, difficulty of construction is reduced while safety of structure is improved.It includes：Slip casting duct, is arranged circumferentially along tube coupling, is embedded in advance among tube coupling structure, connects tube coupling inside and outside wall；Remittance stock tank road, tube coupling outer wall one end positioned at slip casting duct is connected with slip casting duct；Passive cover plate, is embedded among tube coupling in advance, on the outside of remittance stock tank road, there is certain interval with remittance stock tank road.
Description
Technical field
The utility model is related to push bench process engineering, more particularly to a kind of jacking pipe joints antifriction injected hole construction.
Background technology
Push bench process is a kind of no-excavation construction method, and its cardinal principle is by prefabricated tube coupling to head into ground by back jack
In layer, and then the tunnel formed needed for building.Push bench process is divided into artificial push pipe, mechanical jacking etc. again because of the different of its hydraulic character
Mode, however, using which kind of hydraulic character, the frictional resistance between stratum and tube coupling will be to pipe due to tube coupling directly and formation function
Save jacking and formed and hindered, therefore, thixotropic slurries drag reduction technology turns into the common practice of push bench process engineering substantially.
Thixotropic slurries drag reduction technology cardinal principle is constantly to tube coupling periphery and formation-engaging surfaces in tube coupling jack-in process
Antifriction slurries are injected, formation coefficient of friction is less " slurry set " on tube coupling periphery, and thrust needed for not only reducing jacking can more be reduced
To ground disturbance, working security is improved.But because slip casting is injected generally by several points position, site setting is too many, both
Weaken structure increases difficulty of construction again, and site setting is difficult to the effect for reaching uniform and forming " slurry set " very little, again.
Therefore, how research just reaches that good reducing friction through injecting slurry effect is one and structure is pacified by less decanting point position
Entirely, the work being highly profitable to convenience for construction.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of jacking pipe joints antifriction injected hole construction, to reach only
Less slip casting point position is set just to realize the good result of thixotropic slurries antifriction, reduction construction is difficult while safety of structure is improved
Degree.
The technical scheme that the utility model solution above-mentioned technical problem is taken is as follows：
A kind of jacking pipe joints antifriction injected hole construction of the utility model, it is characterized in that it includes：Slip casting duct, along tube coupling ring
To setting, it is embedded in advance among tube coupling structure, connects tube coupling inside and outside wall；Remittance stock tank road, tube coupling outer wall one end positioned at slip casting duct,
It is connected with slip casting duct；Passively cover plate, is embedded among tube coupling in advance, on the outside of remittance stock tank road, between existing necessarily with remittance stock tank road
Gap.
The beneficial effects of the utility model are, when tube coupling jacking, antifriction slurries constantly out of tube coupling by slip casting duct with
The injection of smaller pressure, is compiled in stock tank road, then by antifriction slurries loopful, uniformly takes remittance stock tank out of by the relative movement on stratum
Space between road and passive cover plate, in one layer of formation-engaging surfaces formation uniform, reliable " slurry set ", effectively reduces ground so as to play
Layer frictional resistance, improves the function of working security.Further, since the Correspondent effect in remittance stock tank road, and the passively voltage stabilizing of cover plate
Effect, compared to usual jacking pipe joints, slip casting duct sets quantity to greatly reduce, to ensureing tube coupling structural integrity, reduction
Complicated degree etc. of constructing has better effects.
Brief description of the drawings
This specification includes following two width accompanying drawing：
Fig. 1 is a kind of diagrammatic cross-section of jacking pipe joints antifriction injected hole construction of the utility model.
Fig. 2 is a kind of schematic perspective view of jacking pipe joints antifriction injected hole construction of the utility model.
Component name and corresponding mark are shown in figure：Tube coupling A, formation-engaging surfaces B, slip casting duct 11, remittance stock tank road
21st, passive cover plate 31.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Referring to Figures 1 and 2, a kind of jacking pipe joints antifriction injected hole construction of the utility model includes：Slip casting duct 11, along pipe
Section A is arranged circumferentially, and is embedded in advance among tube coupling A structures, connects tube coupling A inside and outside walls；Remittance stock tank road 21 is located at the pipe in slip casting duct 11
Outer wall one end is saved, is connected with slip casting duct 11；Passive cover plate 31, is embedded among tube coupling A in advance, on the outside of remittance stock tank road 21, with
There is certain interval in remittance stock tank road 21.
When tube coupling A jackings, antifriction slurries are constantly injected out of tube coupling A by slip casting duct 11 with smaller pressure, are compiled in
In stock tank road 21, then by the relative movement on stratum by antifriction slurries loopful, uniform take remittance stock tank road 21 and passive cover plate 31 out of
Between space, in one layer of formation-engaging surfaces B formation uniform, reliable " slurry set ", therefore, the utility model will be played and effectively reduced
Stratum frictional resistance, improves the function of working security.Further, since the Correspondent effect in remittance stock tank road 21, and passive cover plate 31
Pressure stabilization function, compared to usual jacking pipe joints A, slip casting duct 11 set quantity can greatly reduce, to ensure tube coupling A structures it is whole
Body, the complicated degree of reduction construction etc. have better effects.
Answered using in the pre-buried anchoring tube coupling A of tubing (steel pipe, PC pipes etc.) between tube coupling A structures in the slip casting duct 11
There is reliable measures of preventing water, the remittance stock tank road 21 can be pre-formed with tube coupling A structural integrities, or be adopted as steel member and be embedded in pipe in advance
Save on A.The passive cover plate 31 can be using electroplating steel plate or the steel plate of brushing anti-corrosion material, and other have certain rigidity and institute
Need the material of antiseptic property.
A kind of general principle of jacking pipe joints antifriction injected hole construction of the utility model that simply explains through diagrams described above
And structure, due to being easy to carry out some modifications and change on this basis for the those of ordinary skill in constructed field
Dynamic, therefore, this specification is not intended to being confined to the utility model into shown and described concrete structure, parameter and the scope of application
It is interior, therefore every corresponding modification for being possible to be utilized and equivalent, belong to the apllied the scope of the claims of the utility model.
Claims (5)
1. a kind of jacking pipe joints antifriction injected hole construction, it is characterized in that it includes：Slip casting duct (11), is arranged circumferentially along tube coupling,
It is embedded in advance among tube coupling (A) structure, connects tube coupling (A) inside and outside wall；Converge stock tank road (21), the tube coupling positioned at slip casting duct (11)
(A) outer wall one end, is connected with slip casting duct (11)；Passive cover plate (31), is embedded among tube coupling (A) in advance, positioned at remittance stock tank road
(21), there is certain interval with remittance stock tank road (21) in outside.
2. a kind of jacking pipe joints antifriction injected hole construction as claimed in claim 1, it is characterized in that：The slip casting duct (11) is adopted
With in the pre-buried anchoring tube coupling (A) of tubing.
3. a kind of jacking pipe joints antifriction injected hole construction as claimed in claim 1, it is characterized in that：The passive cover plate (31) is adopted
With electroplating steel plate or the steel plate of brushing anti-corrosion material.
4. a kind of jacking pipe joints antifriction injected hole construction as claimed in claim 1, it is characterized in that：It is described converge stock tank road (21) with
Tube coupling (A) integral preform is molded.
5. a kind of jacking pipe joints antifriction injected hole construction as claimed in claim 1, it is characterized in that：Converge stock tank road (21) are
Steel member, is embedded on tube coupling (A) in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720182859.8U CN206530344U (en) | 2017-02-28 | 2017-02-28 | A kind of jacking pipe joints antifriction injected hole construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720182859.8U CN206530344U (en) | 2017-02-28 | 2017-02-28 | A kind of jacking pipe joints antifriction injected hole construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530344U true CN206530344U (en) | 2017-09-29 |
Family
ID=59916857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720182859.8U Active CN206530344U (en) | 2017-02-28 | 2017-02-28 | A kind of jacking pipe joints antifriction injected hole construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530344U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854272A (en) * | 2019-01-31 | 2019-06-07 | 中国矿业大学 | A kind of jacking pipe joints in rock mass light section channel |
| CN114893219A (en) * | 2022-05-26 | 2022-08-12 | 中山大学 | Pipe joint assembly, pipe curtain and box culvert replacement pipe curtain construction method |
-
2017
- 2017-02-28 CN CN201720182859.8U patent/CN206530344U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854272A (en) * | 2019-01-31 | 2019-06-07 | 中国矿业大学 | A kind of jacking pipe joints in rock mass light section channel |
| CN109854272B (en) * | 2019-01-31 | 2023-10-13 | 中国矿业大学 | Pipe jacking pipe joint of rock mass small-section channel |
| CN114893219A (en) * | 2022-05-26 | 2022-08-12 | 中山大学 | Pipe joint assembly, pipe curtain and box culvert replacement pipe curtain construction method |
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