CN204175312U - The thixotropic slurry filling system of big cross section rectangular top pipe pipeline - Google Patents
The thixotropic slurry filling system of big cross section rectangular top pipe pipeline Download PDFInfo
- Publication number
- CN204175312U CN204175312U CN201420411223.2U CN201420411223U CN204175312U CN 204175312 U CN204175312 U CN 204175312U CN 201420411223 U CN201420411223 U CN 201420411223U CN 204175312 U CN204175312 U CN 204175312U
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- tube coupling
- injected hole
- rectangular top
- big cross
- pipeline
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a kind of thixotropic slurry filling system of big cross section rectangular top pipe pipeline, comprise slurry storing tube, mudjack, Grouting Pipe, valve, be combined into the tube coupling of big cross section rectangular top pipe pipeline in certain sequence, to be arranged on pipeline tube coupling wall and the injected hole of through tube coupling wall, wherein, injected hole on described each pipe joint joint is evenly arranged along same tube coupling ring circumferential direction, injected hole on adjacent tube coupling is arranged at conduit axis direction alternate, that is, the position that described injected hole is arranged in the axial direction on adjacent tube coupling is different, described injected hole is staggered in the axial direction layout on push pipe pipeline.The thixotropic slurry filling system of a kind of big cross section rectangular top pipe pipeline disclosed in the utility model, decreases grouting pressure and grouting amount, can form good mud sleeve at pipeline.
Description
Technical field
The utility model relates to a kind of underground engineering construction field, especially relates to the thixotropic slurry filling system of big cross section rectangular top pipe pipeline.
Background technology
Along with the development of domestic underground construction, current walkway, subway access and street underground pedestrian passageway more and more adopt shield structure push-bench to construct, and pipe jacking tunnel is more and more longer, how to reduce the frictional force between jacking pipe joints and stratum, become the key of pipe jacking tunnel construction.Will inject thixotropic slurry at pipe jacking tunnel work progress, thixotropic slurry mainly plays two effects in jacking construction process: one is lubricate, and the dry friction between pipeline and the soil body is become wet friction for this reason, reduces resistance; Two is play a supportive role, and makes tunnel become stable under grouting pressure, reduces the distortion that jacking construction causes.If the mud injected can form a more complete mud sleeve of ratio at pipeline, then the mud next injected to exosmosis, can not be stayed between pipeline and the space of mud sleeve.Therefore need a set of thixotropic slurry filling system at pipe jacking tunnel work progress to be used for injecting thixotropic slurry.
Thixotropic slurry filling system injects thixotropic slurry according to actual conditions in jacking construction process.The thixotropic slurry injected spreads to surrounding centered by the center of circle of injected hole, and the diameter of diffusion is main relevant to grouting pressure with grouting amount, and pressure greatly then diffusion diameter is large, and grouting amount is large, and the little then diffusion diameter of grouting pressure is little, and grouting amount is little.As how less pressure and less grouting amount, to make thixotropic slurry form complete mud sleeve at pipeline quite important, if the pressure of slip casting is larger, then formation disturbance changes established mud sleeve compared with easily broken during Datong District, not only easily cause bottom sedimentation wayward, and because grouting amount also causes unnecessary waste comparatively greatly economically.
For a long time, the injected hole be arranged on push pipe duct wall in thixotropic slurry filling system all adopts square to arrange, the setting position of the injected hole namely on adjacent jacking pipe joints is identical, if the axial spacing between injected hole and circumferential spacing are equal to the ring width of tube coupling, adopt this kind of mode to carry out slip casting, then the slip casting diameter of thixotropic slurry is
l(L is tube coupling ring width), the intensified pressure needed in slip casting process, the slip casting between adjacent holes has larger combination, and so not only comparatively large to bottom disturbance, grouting amount is also large simultaneously, not only causes bottom sedimentation wayward, and also causes waste economically.
Summary of the invention
In order to better solve problem existing in above-mentioned prior art, the utility model provides a kind of thixotropic slurry filling system of big cross section rectangular top pipe pipeline, decreases grouting pressure and grouting amount, and easily forms complete mud sleeve.
In order to realize above-mentioned utility model object, the technical solution of the utility model is:
A kind of thixotropic slurry filling system of big cross section rectangular top pipe pipeline, comprise slurry storing tube, mudjack, Grouting Pipe, valve, be combined into the tube coupling of big cross section rectangular top pipe pipeline in certain sequence, to be arranged on pipeline tube coupling wall and the injected hole of through tube coupling wall, wherein, injected hole on described each pipe joint joint is evenly arranged along same tube coupling ring circumferential direction, injected hole on adjacent tube coupling is arranged at conduit axis direction alternate, that is, the position that described injected hole is arranged in the axial direction on adjacent tube coupling is different, described injected hole is staggered in the axial direction layout on push pipe pipeline.
The thixotropic slurry filling system of big cross section rectangular top pipe pipeline of the present utility model, wherein, injected hole on described each pipe joint joint centrally axial setting position on adjacent tube coupling along in the dotted line of line between the adjacent injected hole of tube coupling ring circumferential direction, and on adjacent tube coupling between injected hole along tube coupling central axis to spacing equal with spacing along tube coupling ring circumferential direction, make the arrangement of described injected hole on push pipe duct wall form quincunx arrangement.
On described adjacent jacking pipe joints between injected hole along tube coupling central axis to spacing and be the ring width of tube coupling along the spacing of tube coupling ring circumferential direction.
The thixotropic slurry filling system of big cross section rectangular top pipe pipeline of the present utility model, wherein, described injected hole is arranged on jacking pipe joints wall by pre-buried mode.
The utility model has actively useful effect:
1. the thixotropic slurry filling system of a kind of big cross section rectangular top pipe pipeline disclosed in the utility model, decreases grouting pressure and grouting amount, can form good mud sleeve at pipeline.The utility model overcomes traditional technology prejudice, by arranging the injected hole of diverse location at adjacent tube coupling, make described injected hole at push pipe duct wall alternate, grouting pressure can be reduced like this, also can reduce grouting amount, reach and make thixotropic slurry form the object of complete mud sleeve at pipeline with less pressure and less grouting amount.
2. the thixotropic slurry filling system of a kind of big cross section rectangular top pipe pipeline disclosed in the utility model, on push pipe pipeline, the layout of injected hole forms quincuncial arrangement, if the spacing of the axis of injected hole and the spacing along tube coupling ring circumferential direction are equal to tube coupling ring width L, L represents tube coupling ring width, then slip casting diameter is 5/4L, spacing between same injected hole be on L push pipe pipeline injected hole be arranged as arranged in squares time, then slip casting diameter is
l, therefore when injected hole becomes quincuncial arrangement, then grouting pressure is little, and formation disturbance is less, and easily formation is complete takes mud sleeve, and can well control bottom sedimentation; In addition, result also in the minimizing of grouting amount, save cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the thixotropic slurry filling system of the utility model big cross section rectangular top pipe pipeline;
Fig. 2 be in Fig. 1 A to enlarged drawing;
Fig. 3 is the arrangement diagram of prior art push pipe pipeline grouting holes;
Fig. 4 is push pipe pipeline grouting holes arrangement diagram in the utility model;
Fig. 5 is prior art push pipe pipeline slip casting effect schematic diagram;
Fig. 6 is the utility model push pipe pipeline slip casting effect schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the thixotropic slurry filling system to the utility model big cross section rectangular top pipe pipeline does further detailed description.
In the drawings, pipeline 1, tube coupling 2, injected hole 3, thixotropic slurry 4, slurry storing tube 5, slip casting supervisor 6, mudjack 7, slip casting arm 8, valve 9.
See Fig. 1, Fig. 2, Fig. 4, a kind of thixotropic slurry filling system of big cross section rectangular top pipe pipeline, comprise slurry storing tube 5, mudjack 7, slip casting supervisor 6, slip casting arm 8, valve 9, be combined into the tube coupling 2 of big cross section rectangular top pipe pipeline in certain sequence, to be arranged on pipeline tube coupling 2 wall and the injected hole 3 of through tube coupling 2 wall, wherein, injected hole 3 on described each pipe joint joint 2 is evenly arranged along same tube coupling ring circumferential direction, the injected hole 3 of adjacent tube coupling 2 is arranged at conduit axis direction alternate, that is, the position that described injected hole 3 is arranged in the axial direction on adjacent tube coupling 2 is different, described injected hole 3 is staggered in the axial direction layout on push pipe pipeline 1,
Injected hole 3 on described each pipe joint joint 2 centrally axial setting position on adjacent tube coupling 2 along in the dotted line of line between the adjacent injected hole 3 of tube coupling ring circumferential direction, and on adjacent jacking pipe joints 2 between injected hole 3 along tube coupling central axis to spacing equal with spacing along tube coupling ring circumferential direction, make the arrangement of described injected hole 3 on push pipe duct wall form quincunx arrangement.
The thixotropic slurry filling system of big cross section rectangular top pipe pipeline of the present utility model, wherein, on described adjacent jacking pipe joints 2 between injected hole 3 along tube coupling central axis to spacing and be the ring width of tube coupling along the spacing of tube coupling ring circumferential direction.
Described injected hole 3 is arranged on jacking pipe joints 2 wall by pre-buried mode.
The method injecting thixotropic slurry is on tube coupling work progress built-in slip casting pipe road, then in jacking construction process, injects thixotropic slurry according to actual conditions.The thixotropic slurry injected spreads to surrounding centered by the center of circle of injected hole, and the diameter of diffusion is main relevant to grouting pressure with grouting amount, and pressure greatly then dilation angle is large, and grouting amount is large, and the little then diffusion diameter of grouting pressure is little, and grouting amount is little.
As shown in Figure 3, the injected hole be arranged on push pipe duct wall in current thixotropic slurry filling system all adopts square to arrange, the setting position of the injected hole namely on adjacent jacking pipe joints is identical, between injected hole along tube coupling central axis to spacing and be the ring width of tube coupling along the spacing of tube coupling ring circumferential direction.As shown in Figure 5, adopt this kind of mode to carry out slip casting, then the slip casting diameter of thixotropic slurry 4 is
l(L is tube coupling ring width), the pressure needed in slip casting process is large, and the thixotropic slurry 4 between adjacent holes has larger combination, and so not only comparatively large to bottom disturbance, grouting amount is also large simultaneously, not only causes bottom sedimentation wayward, and also causes waste economically.As shown in Figure 6, when injected hole on push pipe pipeline becomes quincuncial arrangement, the slip casting diameter of thixotropic slurry 4 is reduced to 5/4L, the pressure needed in slip casting process is little, thixotropic slurry 4 bonding surface between adjacent holes is little, so not only less to bottom disturbance, and grouting amount decreases simultaneously, bottom sedimentation is easily controlled, and also saves cost economically.
Claims (4)
1. the thixotropic slurry filling system of a big cross section rectangular top pipe pipeline, comprise slurry storing tube, mudjack, Grouting Pipe, valve, be combined in certain sequence big cross section rectangular top pipe pipeline tube coupling, be arranged on tube coupling wall and the injected hole of through tube coupling wall, it is characterized in that: the injected hole on described each pipe joint joint is evenly arranged along same tube coupling ring circumferential direction, and the injected hole on adjacent tube coupling is arranged at conduit axis direction alternate.
2. the thixotropic slurry filling system of big cross section rectangular top pipe pipeline as claimed in claim 1, it is characterized in that: the injected hole on described each pipe joint joint centrally axial setting position on adjacent tube coupling along in the dotted line of line between the adjacent injected hole of tube coupling ring circumferential direction, and on adjacent tube coupling between injected hole along tube coupling central axis to spacing equal with spacing along tube coupling ring circumferential direction.
3. the thixotropic slurry filling system of big cross section rectangular top pipe pipeline as claimed in claim 1 or 2, is characterized in that: on described adjacent tube coupling between injected hole along tube coupling central axis to spacing and be the ring width of tube coupling along the spacing of tube coupling ring circumferential direction.
4. the thixotropic slurry filling system of big cross section rectangular top pipe pipeline as claimed in claim 1 or 2, is characterized in that: described injected hole is arranged on jacking pipe joints wall by pre-buried mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411223.2U CN204175312U (en) | 2014-07-24 | 2014-07-24 | The thixotropic slurry filling system of big cross section rectangular top pipe pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411223.2U CN204175312U (en) | 2014-07-24 | 2014-07-24 | The thixotropic slurry filling system of big cross section rectangular top pipe pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175312U true CN204175312U (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420411223.2U Expired - Fee Related CN204175312U (en) | 2014-07-24 | 2014-07-24 | The thixotropic slurry filling system of big cross section rectangular top pipe pipeline |
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| Country | Link |
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| CN (1) | CN204175312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110265A (en) * | 2014-07-24 | 2014-10-22 | 中铁隧道集团有限公司 | Thixotropic slurry grouting system for large-section rectangular pipe-jacking pipeline |
-
2014
- 2014-07-24 CN CN201420411223.2U patent/CN204175312U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110265A (en) * | 2014-07-24 | 2014-10-22 | 中铁隧道集团有限公司 | Thixotropic slurry grouting system for large-section rectangular pipe-jacking pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20210724 |