CN204959835U - Miniature stake stress test device - Google Patents
Miniature stake stress test device Download PDFInfo
- Publication number
- CN204959835U CN204959835U CN201520758992.4U CN201520758992U CN204959835U CN 204959835 U CN204959835 U CN 204959835U CN 201520758992 U CN201520758992 U CN 201520758992U CN 204959835 U CN204959835 U CN 204959835U
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- CN
- China
- Prior art keywords
- outer tube
- wire
- stress test
- test device
- wires hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a miniature stake stress test device, outer tube including being used for the cementing thick liquid is equipped with a plurality of through wires holes on the pipe wall of outer tube, the top of every through wires hole all is equipped with a foil gage, all is equipped with a plurality of wire interfaces on every foil gage, connect the wire that is used for connecting the stress test appearance on the wire interface, the wire connected on every foil gage is inside all the through wires hole through its below causes the outer tube, and the stress test appearance is worn out and be connected to to the free end of wire from the lower extreme of outer tube. The utility model discloses a withdrawing slip casting and the intraductal line mode of walking effectively avoided former outside of tubes to walk the experimental error that the line arouses at tub face because of the line, experiment cost greatly reduced, and the experiment is implemented more conveniently.
Description
Technical field
The utility model belongs to mini pile stress test field, is specifically related to a kind of mini pile stress test device.
Background technology
Mini pile is due to its feature, more and more extensive in the utilization of at home and abroad engineering, but the research of mini pile domestic at present and use are scarcely out of swaddling-clothes, and still need great many of experiments to test and analyze its bearing mechanism and deformation characteristic.Domestic experimental technique conventional at present comprises outdoor sports experiment, adopts the softwares such as plaxis to carry out sunykatuib analysis.Experiment loading system is generally used in domestic outdoor sports experiment, and load controls to carry out test experiments by pile foundation static load detecting and analysing system.Although this type of test macro can complete measurement, testing cost is high, and required experiment article are various, and test program is complicated, and outdoor test has the many difficulties such as carrying.
Utility model content
The purpose of this utility model is to provide a kind of mini pile stress test device, to overcome the defect that above-mentioned prior art exists, the utility model adopts cabling in pipe, the experimental error that before effectively prevent, the outer cabling of pipe causes in pipe face because of line, experimental cost reduces greatly, and faster convenience is implemented in experiment.
For achieving the above object, the utility model adopts following technical scheme:
A kind of mini pile stress test device, comprise the outer tube for grout injection, the tube wall of outer tube is provided with some through wires holes, the top of each through wires hole is equipped with a foil gauge, each foil gauge is equipped with some conductor interfaces, described conductor interface is connected to the wire for connecting measuring stress instrument, the wire that each foil gauge connects all causes outer tube by the through wires hole below it, and the free end of wire passes from the lower end of outer tube and is connected to measuring stress instrument.
Further, the interior pipe that can freely insert or extract is provided with in described outer tube.
Further, the top of through wires hole is frosting, and foil gauge is fixed on frosting.
Further, foil gauge is pasted and fixed on frosting by adhesive glue.
Further, be provided with the Huang Laguan for preventing wire from wearing and tearing in through wires hole, wire all causes outer tube by Huang Laguan.
Further, the wire each foil gauge connected all is bundled together by preservative film.
Further, through wires hole is located along the same line, and the centerline parallel of through wires hole place straight line and outer tube.
Compared with prior art, the utility model has following useful technique effect:
The utility model is under the prerequisite guaranteeing accurately to measure ess-strain under Vertical Load, adopt the design of cabling and outer Surface Mount foil gauge in pipe, measure thinking more succinct efficient, abandon the measuring apparatus of original high cost, decrease the use of laboratory apparatus, adopt cabling in pipe, the experimental error that before effectively prevent, the outer cabling of pipe causes in pipe face because of line, experimental cost reduces greatly, and faster convenience is implemented in experiment.
Further, the interior pipe that can freely insert or extract is provided with in outer tube, wire is made to be in the middle break joint of outer tube and interior pipe, when injecting cement paste in inside pipe, constantly interior pipe is up extracted according to injection speed in the process injecting cement paste, cement paste is flow in outer tube and forms mini pile, when avoiding slip casting, mud and wire make wire produce breakage because of severe friction.
Further, the top of through wires hole is polished into frosting, foil gauge is pasted and fixed on frosting by adhesive glue, can guarantee that foil gauge and outer pipe surface are combined closely.
Further, the position of through wires hole and conductive contact is put tension, wear-resistant Huang Laguan, prevent wire from pullling the damage in process.
Further, the wire that each foil gauge connects all is bundled together by preservative film, make its within the outer tube portion's threading time do not affect other wires, threading is more convenient.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Wherein, 1, through wires hole; 2, outer tube; 3, foil gauge; 4, wire; 5, interior pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
See Fig. 1, a kind of mini pile stress test device, comprise the outer tube 2 for grout injection, the tube wall of outer tube 2 is provided with some through wires holes 1, the top of each through wires hole 1 is frosting, frosting is pasted by adhesive glue and is fixed with foil gauge 3, each foil gauge 3 is equipped with some conductor interfaces, described conductor interface is connected to the wire 4 for connecting measuring stress instrument, the wire 4 that each foil gauge 3 connects all is bundled together by preservative film or other materials, and it is inner to cause outer tube 2 by the through wires hole 1 below it, the tension for preventing wire from wearing and tearing is provided with in through wires hole 1, wear-resistant Huang Laguan, it is inner that wire 4 all causes outer tube 2 by Huang Laguan, and the free end of wire 4 passes from the lower end of outer tube 2 and is connected to measuring stress instrument, the interior pipe 5 that can freely insert or extract is provided with in outer tube 2.
Below operating process of the present utility model is described in further detail:
First select a steel pipe as outer tube 2, outer tube 2 drills string holes 1, through wires hole 1 is diametrically polished into frosting near through wires hole 1 upper end, fixing foil gauge 3 is pasted at frosting place, draw wire 4 at the conductor interface place of foil gauge 3, all wires 4 are imported outer tube 2 from through wires hole 1 inner and draw from its end.Then inserted in outer tube 2 separately get a steel pipe as interior pipe 5, wire 4 is made to be in the middle break joint of outer tube 2 and interior pipe 5, prevent wire 4 because of slip casting damage, and then inject cement paste in inside pipe 5, constantly interior pipe 5 is up extracted according to injection speed in the process injecting cement paste, cement paste is flow in outer tube 2 and forms mini pile, measuring stress instrument survey data and be mini pile in the stressed stress and strain data of vertical direction.
Claims (7)
1. a mini pile stress test device, it is characterized in that, comprise the outer tube (2) for grout injection, the tube wall of outer tube (2) is provided with some through wires holes (1), the top of each through wires hole (1) is equipped with a foil gauge (3), (3) are equipped with some conductor interfaces to each foil gauge, described conductor interface is connected to the wire (4) for connecting measuring stress instrument, it is inner that the upper wire (4) connected of each foil gauge (3) all causes outer tube (2) by the through wires hole (1) below it, and the free end of wire (4) passes from the lower end of outer tube (2) and is connected to measuring stress instrument.
2. a kind of mini pile stress test device according to claim 1, is characterized in that, is provided with the interior pipe (5) that can freely insert or extract in described outer tube (2).
3. a kind of mini pile stress test device according to claim 1, is characterized in that, the top of through wires hole (1) is frosting, and foil gauge (3) is fixed on frosting.
4. a kind of mini pile stress test device according to claim 3, is characterized in that, foil gauge (3) is pasted and fixed on frosting by adhesive glue.
5. a kind of mini pile stress test device according to claim 1, is characterized in that, is provided with the Huang Laguan for preventing wire from wearing and tearing in through wires hole (1), and it is inner that wire (4) all causes outer tube (2) by Huang Laguan.
6. a kind of mini pile stress test device according to claim 1, is characterized in that, the upper wire (4) connected of each foil gauge (3) is all bundled together by preservative film.
7. a kind of mini pile stress test device according to claim 1, is characterized in that, through wires hole (1) is located along the same line, and the centerline parallel of through wires hole (1) place straight line and outer tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520758992.4U CN204959835U (en) | 2015-09-28 | 2015-09-28 | Miniature stake stress test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520758992.4U CN204959835U (en) | 2015-09-28 | 2015-09-28 | Miniature stake stress test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204959835U true CN204959835U (en) | 2016-01-13 |
Family
ID=55054910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520758992.4U Expired - Fee Related CN204959835U (en) | 2015-09-28 | 2015-09-28 | Miniature stake stress test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204959835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115233747A (en) * | 2022-07-13 | 2022-10-25 | 青岛理工大学 | Device and method for testing stress of micro steel pipe pile in miscellaneous filled stratum |
-
2015
- 2015-09-28 CN CN201520758992.4U patent/CN204959835U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115233747A (en) * | 2022-07-13 | 2022-10-25 | 青岛理工大学 | Device and method for testing stress of micro steel pipe pile in miscellaneous filled stratum |
| CN115233747B (en) * | 2022-07-13 | 2024-02-27 | 青岛理工大学 | Device and method for testing stress of miniature steel pipe pile in miscellaneous fill stratum |
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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: 20160113 Termination date: 20160928 |