CN207633383U - Device for precast hollow uplift pile wadding weft variation pull - Google Patents
Device for precast hollow uplift pile wadding weft variation pull Download PDFInfo
- Publication number
- CN207633383U CN207633383U CN201720723568.5U CN201720723568U CN207633383U CN 207633383 U CN207633383 U CN 207633383U CN 201720723568 U CN201720723568 U CN 201720723568U CN 207633383 U CN207633383 U CN 207633383U
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- China
- Prior art keywords
- hollow
- weft variation
- wadding weft
- stayed mast
- clutch disk
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- Piles And Underground Anchors (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The utility model is related to a kind of devices for precast hollow uplift pile wadding weft variation pull, belong to technical field of civil engineering.The device includes:The clutch disk of exposed steel bar for connecting wadding weft variation, the stayed mast of bottom connection clutch disk, the hollow hydraulic jack for being set in outside stayed mast and driving stayed mast；Reaction plate is installed on stayed mast；Load transducer is equipped between reaction plate and hollow hydraulic jack；Hollow hydraulic jack is mounted on backing plate, and backing plate is arranged with the counter-force steel pipe being used to support in hollow uplift pile；The diameter of clutch disk is less than the internal diameter of counter-force steel pipe.Device provided by the utility model for precast hollow uplift pile wadding weft variation pull, self equilibrium systems can be established between Prefabricated hollow pile and wadding weft variation, wadding weft variation is applied by the reaction of bearing of hollow pile and extracts load, and then the data such as load, displacement can accurately be tested.
Description
Technical field
The utility model is related to technical field of civil engineering, more particularly to the hollow uplift pile of industry and civil buildings, tools
Body is said, is a kind of device for precast hollow uplift pile wadding weft variation pull.
Background technology
Uplift pile is widely used in big basement anti-floating, towering buildings or structures resistance to plucking, tidal quay platform resistance to plucking, big
Rock anchorage base etc. in the pile foundation and dead load test pile of type dock floor.Pre-stress hollow uplift pile as uplift pile one
Kind, the advantage for having diameter small specific surface product big, good in economic efficiency is used widely in engineering.Between stake and foundation structure
Concrete connection is filled out by the hollow top implanted reinforced bar cage in stake and filling.
Since Prefabricated hollow pile is made up of centrifuging process, inner wall smoother, that is, fn are smaller, wadding weft variation
Adhesion strength between hollow pile inner wall is low, so when reaching compared with large pulling resistance for design, needs longer wadding weft variation
Length.Based on the above situation, patent of invention " prestress reinforced concrete circular hollow pile with internal thread or inside groove and its processing
Method (ZL201010170647.0) " and a kind of " hollow uplift pile of monoblock type internal projection and preparation method thereof (publication number
106626032A) ", it by changing the smooth inner wall of hollow pile in hollow pile inner wall threading or increase protrusion, increases and fills out
The length of wadding weft variation is greatly shortened in cohesive force between core concrete and inner wall.But due to hollow pile actual size compared with
Greatly, wadding weft variation and stake anchor force are strong, and existing testing machine is not applied for the pull of wadding weft variation.
Invention content
The shortcomings that the technical problems to be solved in the utility model is, overcomes the prior art proposes that one kind can be tested accurately
The device of the adhesive property of wadding weft variation and hollow pile.
The technical solution that the utility model proposes to solve above-mentioned technical problem is：One kind is filled out for precast hollow uplift pile
The device of core concrete pull, including:The clutch disk of exposed steel bar for connecting wadding weft variation, bottom connect institute
The stayed mast of clutch disk is stated, is set in the stayed mast outside and drives the hollow hydraulic jack of the stayed mast；The drawing
Reaction plate is installed on power bar；Load transducer is equipped between the reaction plate and the hollow hydraulic jack；It is described hollow
Hydraulic jack is mounted on backing plate, and the backing plate is arranged with the counter-force steel pipe being used to support in hollow uplift pile；It is described
The diameter of clutch disk is less than the internal diameter of the counter-force steel pipe.
Said program, which further improves, to be：There is the notch that can accommodate displacement sensor on the counter-force steel pipe.
Said program, which further improves, to be：The clutch disk center has threaded hole；The bottom of the stayed mast
It is formed with the screw thread coordinated with the threaded hole；The surrounding of the clutch disk is formed with the exposed steel bar pair with the wadding weft variation
That answers wears muscle hole.
Device provided by the utility model for precast hollow uplift pile wadding weft variation pull, can be prefabricated
Self equilibrium systems are established between hollow pile and wadding weft variation, and wadding weft variation is applied by the reaction of bearing of hollow pile and is extracted
Load, and then the data such as load, displacement can accurately be tested.
Description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is one preferred embodiment structural schematic diagram of the utility model.
Fig. 2 is clutch disk structural schematic diagram in Fig. 1.
Fig. 3 is counter-force steel-tube construction schematic diagram in Fig. 1.
Specific implementation mode
Embodiment
Device provided in this embodiment for precast hollow uplift pile wadding weft variation pull, such as Fig. 1, including:
Stayed mast 1, clutch disk 2, counter-force steel pipe 3, backing plate 4, hollow hydraulic jack 5, load transducer 6, counter-force steel plate 7 and counter-force
Nut 8.Wherein, there is such as Fig. 2 of clutch disk 2 threaded hole 21,21 surrounding of threaded hole to wear muscle hole 22 with several, draw among it
There is screw thread, the screw-thread fit of threaded hole 21 and the bottom of stayed mast 1 to consolidate clutch disk 2 and stayed mast 1 for the bottom of power bar 1
Fixed connection.The exposed longitudinal reinforcement of wadding weft variation wears muscle hole 22, and fixation is tightened with nut.
Hollow hydraulic jack 5 is set in outside stayed mast 1 and drives movement above 1 phase of stayed mast, and core coagulation is filled out to pull
Soil；Reaction plate 7 is installed on stayed mast 1；Reaction plate 7 is fixed by the counter-force nut 8 mounted on 1 top of stayed mast.Reaction plate 7
Load transducer 6 is equipped between hollow hydraulic jack 5；Hollow hydraulic jack 5 is mounted on backing plate 4,4 times settings of backing plate
It is useful for the counter-force steel pipe 3 being supported in hollow uplift pile；The diameter of clutch disk 2 is less than the internal diameter of counter-force steel pipe 3.In order to just
In installation displacement sensor, such as Fig. 3 has notch on counter-force steel pipe 3.
The present embodiment course of work is as follows：
Step 1 prepares Prefabricated hollow pile wadding weft variation pull sample, steel is placed in Prefabricated hollow pile cavity
Muscle cage simultaneously fills and fills out concrete, screw thread processed at the top of exposed longitudinal reinforcement；
The exposed longitudinal reinforcement of step 2, wadding weft variation wears muscle hole 22 across clutch disk 2, and nut is used in combination to tighten；
Step 3 tightens stayed mast 1 at the threaded hole 21 of clutch disk 1；
Step 4 covers upper counter-force steel pipe 3, backing plate 4, hollow hydraulic jack 5, load transducer successively on stayed mast 1
6, counter-force steel plate 7 tightens anchoring with counter-force nut 8 except counter-force steel plate 7；
Step 5, by counter-force steel pipe 3, wadding weft variation forms self equilibrium systems with Prefabricated hollow pile, due to prefabricated
The reaction of bearing of hollow pile, hollow hydraulic jack 5, which can apply wadding weft variation, extracts load, and to fill out core mixed for record simultaneously
Coagulate the extraction displacement of soil.
The utility model is not limited to the above embodiment, and all technical solutions formed using equivalent replacement all fall within this reality
With the protection domain of novel requirement.
Claims (3)
1. a kind of device for precast hollow uplift pile wadding weft variation pull, which is characterized in that including:For connecting
The clutch disk of the exposed steel bar of wadding weft variation, bottom connect the stayed mast of the clutch disk, are set in the stayed mast
Hollow hydraulic jack that is outer and driving the stayed mast；Reaction plate is installed on the stayed mast；The reaction plate with it is described
Load transducer is equipped between hollow hydraulic jack；The hollow hydraulic jack is mounted on backing plate, and the backing plate is divided into
It is equipped with the counter-force steel pipe being used to support in hollow uplift pile；The diameter of the clutch disk is less than the interior of the counter-force steel pipe
Diameter.
2. the device according to claim 1 for precast hollow uplift pile wadding weft variation pull, feature exists
In：There is the notch that can accommodate displacement sensor on the counter-force steel pipe.
3. the device according to claim 1 for precast hollow uplift pile wadding weft variation pull, feature exists
In：The clutch disk center has threaded hole；The bottom of the stayed mast is formed with the screw thread coordinated with the threaded hole；It is described
The surrounding of clutch disk, which is formed with, corresponding with the exposed steel bar of the wadding weft variation wears muscle hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720723568.5U CN207633383U (en) | 2017-06-21 | 2017-06-21 | Device for precast hollow uplift pile wadding weft variation pull |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720723568.5U CN207633383U (en) | 2017-06-21 | 2017-06-21 | Device for precast hollow uplift pile wadding weft variation pull |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207633383U true CN207633383U (en) | 2018-07-20 |
Family
ID=62860786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720723568.5U Active CN207633383U (en) | 2017-06-21 | 2017-06-21 | Device for precast hollow uplift pile wadding weft variation pull |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207633383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951624A (en) * | 2018-09-06 | 2018-12-07 | 南京吉欧地下空间科技有限公司 | Air bag pile pulling device and pile pulling construction method |
-
2017
- 2017-06-21 CN CN201720723568.5U patent/CN207633383U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951624A (en) * | 2018-09-06 | 2018-12-07 | 南京吉欧地下空间科技有限公司 | Air bag pile pulling device and pile pulling construction method |
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