CN203907010U - Flexible connection device for pipe jacking construction in soft soil layer - Google Patents
Flexible connection device for pipe jacking construction in soft soil layer Download PDFInfo
- Publication number
- CN203907010U CN203907010U CN201420296904.9U CN201420296904U CN203907010U CN 203907010 U CN203907010 U CN 203907010U CN 201420296904 U CN201420296904 U CN 201420296904U CN 203907010 U CN203907010 U CN 203907010U
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- China
- Prior art keywords
- flexible connection
- steel plates
- connection device
- jacking construction
- concrete
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- Expired - Fee Related
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 239000002689 soil Substances 0.000 title abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 239000004567 concrete Substances 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to the technical field of engineering construction devices, in particular to a flexible connection device for pipe jacking construction in a soft soil layer. A plurality of steel plates are embedded in each of the two ends of a concrete pipeline, the steel plates are connected with the concrete pipeline through rebars, brackets are welded to the steel plates, and the brackets are connected through split bolts in a pulled mode. Eight steel plates are embedded in each of the two ends of the concrete pipeline, the steel plates at each end are evenly distributed in a circumference mode along the concrete pipe wall, and the steel plates at each end are connected with the concrete pipeline through nine rebars. The flexible connection device for pipe jacking construction in the soft soil layer solves the problem that in the prior art, the direction of a pipe jacking heading machine is hard to control, the mode of combining embedded parts and the brackets is adopted, flexible connection of pipelines is achieved, and stability of the pipelines in the jacking heading process and operation process is ensured. The flexible connection device is easy to install according to the structure and low in cost, overall capital investment and the time cost are reduced while stability of engineering construction is ensured, and the flexible connection device has good market prospect.
Description
[technical field]
The utility model relates to engineering construction device technique field, specifically a kind of flexible connecting device for soft layer jacking construction.
[background technique]
Weak soil has the features such as natural moisture content is high, natural void ratio is large, shearing strength is low, compressibility coefficient is high, permeability coefficient is little.Foundation bearing capacity under outer load effect is low, foundation deformation is large, and inhomogeneous deformation is also large, and stabilization lasts longer.In soft layer jack-in process, easily there is following problem in DN4000 reinforced concrete pipiline:
1, because foundation bearing capacity is low, can not provide enough reaction forces for push-bench correction, easily cause pipe jacking tunnelling machine direction to be difficult to control, and cause pipeline unstability.
2, in the conduit running stage, easily there is tube coupling sedimentation, cause pipeline to disconnect, cause project failure.
For preventing pipeline unstability, the way of easy economy is pipeline to be connected as a whole, and concrete pipe Placement mainly contains following several at present:
1, curved bolt connects: as shown in Figure 1, use for reference the Placement of shield duct piece, at the reserved screw of pipe ends, by curved bolt, front and back pipeline is connected.But this kind of mode requirement, and will transform pipe mould, so that the installation of pre-buried screw.
There are two problems in the connection of curved bolt: 1) pre-buried screw installation precision is higher, the ability of pipeline dislocation, otherwise can cause screw accurately not aim at, cannot realize connection; 2) curved bolt is installed difficulty relatively, is substantially difficult to dismounting; 3) because bolt need to design larger section of jurisdiction hand hole so that bolt install, to structure weaken larger; 4) need to transform pipe mold.
2, pre-buried steel box: as shown in Figure 2, adopt welded steel plate can be embedded in respectively pipe ends corresponding position, adopt bolt that can is fixed.Which must take reliable measure that can is connected with pipeline reinforced mesh, otherwise easily causes can to come off, and does not reach due effect.
[model utility content]
The purpose of this utility model is exactly cannot meet deficiency and the defect such as requirement of pipeline correction in push pipe process in order to solve to be rigidly connected in prior art, a kind of novel structure is provided, safe and reliable, cost is low and effectively improve the flexible connecting device for soft layer jacking construction of construction quality and Security, comprise concrete duct, steel plate, bracket, bolt, it is characterized in that described concrete duct two ends are respectively embedded with some block plates, steel plate is connected with concrete duct by reinforcing bar, on described steel plate, be welded with bracket, between some brackets, pass through split bolt drawknot.
Respectively be embedded with 8 block plates at described concrete duct two ends, steel plate, along the concrete tube wall arrangement that is circularly and evenly distributed, makes pipeline stressed evenly, ensures the stable operation in work progress.
Described steel plate is connected with concrete duct by 9 reinforcing bars, ensures reinforcing bar and concrete stabilized structure degree and is controlled in lower cost.
Described plate size is 400mm × 300mm × 14mm, and this is of a size of the optimum size that many experiments draws, can in lower cost, ensure propelling construction safety and stable.
Be Φ 16 reinforcing bars at described reinforcing bar, ensure steel plate and concrete firm connection.
Be Φ 32 split bolts at described bolt, by with the combination of bracket, as the fulcrum of supporting structure, bear concrete side pressure and other loads, guarantee the each stress index requirement in work progress.
The utility model compared with the existing technology, its advantage is that the utility model has solved pipe jacking tunnelling machine direction in prior art and has been difficult to the defects such as control, the mode that has adopted embedded part to combine with bracket, realize pipeline flexible connection, guaranteed pipeline in jack-in process and the stability of run duration.And its structure is easy to install, and cost is low, in ensureing engineering construction stability, reduces Engineering Overall fund input and time cost, and market prospects are good.
[brief description of the drawings]
Fig. 1 is the structural representation of the curved bolt connection construction of available technology adopting;
Fig. 2 is the structural representation of available technology adopting pre-buried steel box construction;
Fig. 3 is the utility model embedded part artwork;
Fig. 4 (1) is embedded part detail drawing of the present utility model;
Fig. 4 (2) is the detail drawing of the another angle of embedded part of the present utility model;
Fig. 5 is the bracket structure schematic diagram in the utility model embodiment;
Fig. 6 is another angle structural representation of the utility model Fig. 5;
Fig. 7 is the pipeline drawknot schematic diagram in the utility model embodiment;
As shown in the figure, in figure: 1. pre-embedded steel slab 2. plug welding 3. split bolt 4. bracket 5. steel plates;
Specifying Fig. 7 is Figure of abstract of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning this professional people.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model is a kind of flexible connecting device for soft layer jacking construction, has adopted the mode of embedded part and bracket combination to realize pipeline flexible connection, guarantees pipeline in jack-in process and the stability of run duration.Its specific implementation method is:
1, each pre-buried 8 blocks of 400mm × 300mm × 14mm steel plates at concrete duct two ends, steel plate links together by 9 Φ 16 reinforcing bars and concrete duct, is connected, between reinforcing bar and steel plate by plug welding as shown in Fig. 4 (2).Steel plate, as embedded part, is evenly distributed along the circumferential surface of concrete duct, as shown in Figure 3.
2, be on steel plate, to weld bracket at embedded part, thereby then by Φ 32 split bolt drawknot brackets, pipeline carried out to drawknot.
Wherein, to refer to protuberate on building or on post, in order to the part as stressed member, be known technical terms to bracket for a person skilled in the art.
Claims (6)
1. the flexible connecting device for soft layer jacking construction, comprise concrete duct, steel plate, bracket, bolt, it is characterized in that described concrete duct two ends are respectively embedded with some block plates, steel plate is connected with concrete duct by reinforcing bar, on described steel plate, be welded with bracket, between some brackets, pass through split bolt drawknot.
2. a kind of flexible connecting device for soft layer jacking construction as claimed in claim 1, is characterized in that being respectively embedded with 8 block plates at described concrete duct two ends, and steel plate is along the concrete tube wall arrangement that is circularly and evenly distributed.
3. a kind of flexible connecting device for soft layer jacking construction as claimed in claim 1 or 2, is characterized in that described steel plate is connected with concrete duct by 9 reinforcing bars.
4. a kind of flexible connecting device for soft layer jacking construction as claimed in claim 1 or 2, is characterized in that described plate size is 400mm × 300mm × 14mm.
5. a kind of flexible connecting device for soft layer jacking construction as claimed in claim 1, is characterized in that at described reinforcing bar be Φ 16 reinforcing bars.
6. a kind of flexible connecting device for soft layer jacking construction as claimed in claim 1, is characterized in that at described bolt be Φ 32 split bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296904.9U CN203907010U (en) | 2014-06-05 | 2014-06-05 | Flexible connection device for pipe jacking construction in soft soil layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296904.9U CN203907010U (en) | 2014-06-05 | 2014-06-05 | Flexible connection device for pipe jacking construction in soft soil layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203907010U true CN203907010U (en) | 2014-10-29 |
Family
ID=51781288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420296904.9U Expired - Fee Related CN203907010U (en) | 2014-06-05 | 2014-06-05 | Flexible connection device for pipe jacking construction in soft soil layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203907010U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443612A (en) * | 2018-06-21 | 2018-08-24 | 广东电网有限责任公司佛山供电局 | RC pipejacking tube coupling connector |
| CN111322458A (en) * | 2020-03-18 | 2020-06-23 | 长江勘测规划设计研究有限责任公司 | Pipe jacking interface structure for improving longitudinal rigidity and construction method thereof |
| CN112376670A (en) * | 2020-10-22 | 2021-02-19 | 中国一冶集团有限公司 | Flexible connection structure between reinforced concrete pipes and construction method |
-
2014
- 2014-06-05 CN CN201420296904.9U patent/CN203907010U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443612A (en) * | 2018-06-21 | 2018-08-24 | 广东电网有限责任公司佛山供电局 | RC pipejacking tube coupling connector |
| CN111322458A (en) * | 2020-03-18 | 2020-06-23 | 长江勘测规划设计研究有限责任公司 | Pipe jacking interface structure for improving longitudinal rigidity and construction method thereof |
| CN112376670A (en) * | 2020-10-22 | 2021-02-19 | 中国一冶集团有限公司 | Flexible connection structure between reinforced concrete pipes and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200436, No. three, 278 Road, Zhabei District, Shanghai Co-patentee after: China Railway Municipal Environmental Construction Co.,Ltd. Patentee after: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC Address before: 200436, No. three, 278 Road, Zhabei District, Shanghai Co-patentee before: China Railway Shanghai Engineering Bureau Group Municipal Engineering Co.,Ltd. Patentee before: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200527 Address after: 200331 A District, building 88, Lane 3, Wuwei Road, Shanghai, Putuo District, China Patentee after: China Railway Municipal Environmental Construction Co.,Ltd. Address before: 200436, No. three, 278 Road, Zhabei District, Shanghai Co-patentee before: China Railway Municipal Environmental Construction Co.,Ltd. Patentee before: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.278, JIANGCHANG Third Road, Zhabei District, Shanghai 200436 Patentee after: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC Patentee after: China Railway Municipal Environmental Construction Co.,Ltd. Address before: No.278, JIANGCHANG Third Road, Zhabei District, Shanghai 200436 Patentee before: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC Patentee before: China Railway Shanghai Engineering Bureau Group Municipal Engineering Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 |