CN209723059U - A kind of cast-in-place concrete pile loading test device - Google Patents
A kind of cast-in-place concrete pile loading test device Download PDFInfo
- Publication number
- CN209723059U CN209723059U CN201822149804.4U CN201822149804U CN209723059U CN 209723059 U CN209723059 U CN 209723059U CN 201822149804 U CN201822149804 U CN 201822149804U CN 209723059 U CN209723059 U CN 209723059U
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- China
- Prior art keywords
- plate
- reinforcement cage
- sighting tube
- steel reinforcement
- side plate
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- 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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- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 230000002787 reinforcement Effects 0.000 claims abstract description 22
- 239000011440 grout Substances 0.000 claims abstract description 19
- 238000007569 slipcasting Methods 0.000 claims abstract description 7
- 239000004745 nonwoven fabric Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 239000004746 geotextile Substances 0.000 claims description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 claims 1
- 239000008397 galvanized steel Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 9
- 239000012790 adhesive layer Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000010412 perfusion Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
A kind of cast-in-place concrete pile loading test device, it includes: steel reinforcement cage, deformable cabinet, Grouting Pipe, grout outlet, sighting tube and observation bar, deformable cabinet is adapted to steel reinforcement cage, and it is arranged in steel reinforcement cage bottom, Grouting Pipe, grout outlet, sighting tube one end extend through be arranged in deformable top of the box, the other end of Grouting Pipe is pierced by steel reinforcement cage and is arranged on slip casting machine, the other end stretching at the top of steel reinforcement cage respectively of grout outlet, sighting tube, it is provided with restrictor ring in sighting tube, observation bar passes through that restrictor ring is movable to be plugged in sighting tube.The utility model is simple and practical, and measured value is accurate, does not need to pile crown secondary treatment, and detection time is short, high-efficient, and expense is low, use is extensive.Overall simplification bearing capacity of pile foundation measuring method and technique, reduce testing cost, it is ensured that pile integrity.
Description
Technical field
The utility model relates to loading test field, especially a kind of cast-in-place concrete pile loading test device.
Background technique
For current pouring pile bearing capacity detection device and method, bearing capacity of pile foundation detection is examined using single pile static load
, all there is certain defect in survey, high strain monitoring, autobalanced detection, since Pile Diameter is big, bearing capacity of single pile is wanted in applicability
It asks high, leads to that single pile dead-load detection load height, performance difficulty, low efficiency, costly, process is more, time-consuming.High strain monitoring needs
Large scale equipment is wanted to be impacted, pile foundation end needs secondary treatment, and costly, process is more, measured value difference is big；Autobalanced detection meeting
Cause pile foundation reinforcing bar to be broken, influences the integrality of concrete pipe base, influence concrete pipe base quality, need back-grouting.Therefore,
How to make a kind of cast-in-place concrete pile loading test device for being able to solve prior art problem just become have it is to be solved
Technical problem.
Utility model content
The utility model is based on above-mentioned technical problem, proposes a kind of cast-in-place concrete pile loading test device,
Compared with prior art, the utility model is simple and practical, and measured value is accurate, does not need to pile crown secondary treatment, and detection time is short, imitates
Rate is high, and expense is low, use is extensive.Overall simplification bearing capacity of pile foundation measuring method and technique, reduce testing cost, it is ensured that
Pile integrity.
In view of this, the utility model proposes a kind of cast-in-place concrete pile loading test device, it includes: reinforcing bar
Cage, deformable cabinet, Grouting Pipe, grout outlet, sighting tube and observation bar, the deformable cabinet and the steel reinforcement cage are suitable
Match, and the steel reinforcement cage bottom is set, one end difference of the Grouting Pipe, the grout outlet, the sighting tube
Through the deformable top of the box is arranged in, the other end of the Grouting Pipe is pierced by the top of the steel reinforcement cage, connection
On slip casting machine, the other end stretching at the top of the steel reinforcement cage respectively of the grout outlet, the sighting tube is described
It is provided with restrictor ring in sighting tube, the observation bar passes through that the restrictor ring is movable to be plugged in the sighting tube.
In the technical scheme, it is not take up space using the present apparatus, does not need counterweight, reaction frame, does not need impact device,
Suitable for the pile foundation of the positions such as underwater, bottom of foundation ditch, hillside fields, narrow place, there is stronger applicability.
In the above-mentioned technical solutions, it is preferred that the deformable cabinet includes top plate and bottom plate, side plate and non-woven fabrics, institute
The side plate stated includes the first side plate and the second side plate, and first side plate is arranged under the top plate, described second side
Plate is arranged on the bottom plate, there are gap between second side plate and the top plate, first side plate with
There are gap between the bottom plate, adhesive layer is provided on the non-woven fabrics, the non-woven wraps are arranged at interval
The top plate and the sole periphery, and fixed, be integrally formed with the deformable of cavity by the adhesive layer
Cabinet.
In the technical scheme, it is preferred that deformable cabinet overall structure is simple, it is cheap, be easy to make, convenient for making
With being also equipped with the morphotropism of detection demand.And non-woven fabrics has certain thick liquid penetrating, can increase viscous between pile foundation and soil
Knot property, increases the bearing capacity of pile foundation.
In the above-mentioned technical solutions, it is preferred that steel chain is provided in the cavity, one end setting of the steel chain exists
On the top plate, the other end of the steel chain is arranged on the bottom plate, and the length of the steel chain is greater than described
3 to 5 centimetres of the height of cavity.
In the technical scheme, it is preferred that be provided with steel chain in deformable cabinet, limit is increased to deformable cabinet
Protection, avoids damage caused by unexpected factors.
In the above-mentioned technical solutions, it is preferred that the material of the top plate and the bottom plate is steel plate, the note
Starch pipe, the material of the grout outlet, the sighting tube is coating steel pipe, the non-woven fabrics is that thicken nonwoven geotechnological
Cloth.
In the technical scheme, it is preferred that use steel plate, coating steel pipe in its structure and thicken non-woven geotextile, mention
The high entire compression intensity of detection device, it is ensured that the stability of detection process.
The utility model proposes a kind of cast-in-place concrete pile loading test devices, and the utility model is in steel reinforcement cage bottom
Provided with counterforce device, after concrete perfusion intensity meets condition, grouting and reinforcing pile foundation substrate is carried out while pressurization, both
Calculate bearing capacity of pile foundation, and improve the compacted effect and bearing capacity of pile foundation part, pile body is not generated any destruction with
It influencing, is suitable for end-bearing pile and friction pile, production is simple, and it is easy to operate, landform, topography and position are not required, are applicable in
Property is strong.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of the utility model；
In figure: 1 steel reinforcement cage, 2 deformable cabinets, 3 Grouting Pipes, 4 grout outlets, 5 sighting tubes, 6 cavitys, 7 observation bars, 8 top plates,
9 bottom plates, 10 non-woven fabrics, 11 steel chains, 12 restrictor rings, 13 side plates.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment.
Many details are explained in the following description in order to fully understand the utility model, still, this is practical
Novel to be implemented using other than the one described here other way, therefore, the protection scope of the utility model is simultaneously
It is not limited by following public content.
The technical solution of the utility model is described further below in conjunction with Fig. 1 and Fig. 2.
First embodiment: as shown in Figure 1, a kind of cast-in-place concrete pile loading test device, it includes: steel reinforcement cage 1, can
Cabinet 2, Grouting Pipe 3, grout outlet 4, sighting tube 5 and observation bar 7 are deformed, the deformable cabinet 2 and the steel reinforcement cage 1 are suitable
Match, and 1 bottom of steel reinforcement cage, one end of the Grouting Pipe 3, the grout outlet 4, the sighting tube 5 are set
It extends through and 2 top of deformable cabinet is set, and communicated with the cavity 6 in the deformable cabinet 2, it is described
The other end of Grouting Pipe 3 is pierced by the steel reinforcement cage 1 and is arranged on slip casting machine, the grout outlet 4, the sighting tube 5
The other end stretches out at the top of the steel reinforcement cage 1 respectively, and restrictor ring 12, the observation bar 7 are provided in the sighting tube 5
It is plugged in the sighting tube 5 across the restrictor ring 12 is movable.
The deformable cabinet 2 includes top plate 8, bottom plate 9, side plate 13 and non-woven fabrics 10, and the side plate 13 includes the
Side plate and the second side plate, first side plate are arranged under the top plate 8, and second side plate is arranged in described
On bottom plate 9, there are gap between second side plate and the top plate 8, first side plate and the bottom plate 9 it
Between there are gap, be provided with adhesive layer on the non-woven fabrics 10, the non-woven fabrics 10 is wrapped in spaced described
Top plate 8 and 9 periphery of bottom plate, and fixed by the adhesive layer, the deformable cabinet 2 with cavity 6 is integrally formed.
Steel chain 11 is provided in the cavity 6, one end of the steel chain 11 is arranged on the top plate 8, the steel chain 11
The other end be arranged on the bottom plate 9, the length of the steel chain 11 is greater than 3 to 5 centimetres of height of the cavity 6.
The material of the top plate 8 and the bottom plate 9 is steel plate, the Grouting Pipe 3, the grout outlet 4, the observation
The material of pipe 5 is coating steel pipe, and the non-woven fabrics 10 is to thicken non-woven geotextile.
The height of the deformable cabinet 2 is 25cm, and diameter is consistent with pile diameter；The thickness of the steel plate >=
8mm；The diameter of the Grouting Pipe 3 and the grout outlet 4 is 1 inch；The Grouting Pipe 3, the grout outlet 4, institute
The height for the sighting tube 5 stated is higher than described 1 top 1m of steel reinforcement cage or so (depending on site contour situation, with easy to operate
It is advisable)；The diameter of the sighting tube 5 is 0.6 inch；The described observation bar 7 is >=round steel of 8mm diameter.
In use: after pouring pile hole, borehole cleaning to criterion of acceptability will test device and be placed in priming concrete pile hole
It is interior, normal perfusion pile body concrete, after 7 day age of concrete perfusion (or after concrete strength is greater than the 60% of design)
Carry out loading test.
When loading test, the cement paste slip casting machine being stirred is poured into deformable cabinet 2 by the pressurization of Grouting Pipe 3
Cavity 6 in, grouting pressure is recorded by pressure gauge on slip casting machine；
Gradually cavity 6 is filled up into the slurries in cavity 6, makes 6 deformation expansion of cavity, observation observation bar 7 and sighting tube 5
Between relative deformation situation, record deformation tendency and maximum deformation quantity；
After the spilling of grout outlet 4, slip casting terminates extra slurries after the completion of detection；
The relation curve between capability and deformation amount is drawn according to record information, calculating pile foundation is allowing deformation range
Interior maximum load capacity value.
Above-described is only the preferred embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of cast-in-place concrete pile loading test device, it is characterised in that: including steel reinforcement cage, deformable cabinet, Grouting Pipe,
Grout outlet, sighting tube and observation bar, the deformable cabinet is adapted to the steel reinforcement cage, and the steel reinforcement cage is arranged in
Bottom, the Grouting Pipe, the grout outlet, the sighting tube one end extend through the deformable case be set
At the top of body, the other end of the Grouting Pipe is pierced by the top of the steel reinforcement cage, is connected on slip casting machine, the grout outlet,
The other end of the sighting tube stretches out at the top of the steel reinforcement cage respectively, is provided with restrictor ring in the sighting tube, institute
The observation bar stated passes through that the described restrictor ring is movable to be plugged in the sighting tube.
2. cast-in-place concrete pile loading test device according to claim 1, it is characterised in that: the deformable case
Body includes top plate and bottom plate, side plate and non-woven fabrics, and the side plate includes the first side plate and the second side plate, first side plate
It is arranged under the top plate, second side plate is arranged on the bottom plate, second side plate and the top
There are gaps between plate, there are gap between first side plate and the bottom plate, are provided on the non-woven fabrics viscous
Layer is tied, the non-woven wraps pass through the bonding in the spaced top plate and the sole periphery
Layer is fixed, and the deformable cabinet with cavity is integrally formed.
3. cast-in-place concrete pile loading test device according to claim 2, it is characterised in that: set in the cavity
It is equipped with steel chain, one end of the steel chain is arranged on the top plate, and the bottom is arranged in the other end of the steel chain
On plate, the length of the steel chain is greater than 3 to 5 centimetres of height of the cavity.
4. cast-in-place concrete pile loading test device according to claim 2, it is characterised in that: the top plate and institute
The material for the bottom plate stated is steel plate, the Grouting Pipe, the grout outlet, the sighting tube material be galvanized steel
Pipe, the non-woven fabrics are to thicken non-woven geotextile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822149804.4U CN209723059U (en) | 2018-12-21 | 2018-12-21 | A kind of cast-in-place concrete pile loading test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822149804.4U CN209723059U (en) | 2018-12-21 | 2018-12-21 | A kind of cast-in-place concrete pile loading test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209723059U true CN209723059U (en) | 2019-12-03 |
Family
ID=68677495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822149804.4U Expired - Fee Related CN209723059U (en) | 2018-12-21 | 2018-12-21 | A kind of cast-in-place concrete pile loading test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209723059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372039A (en) * | 2018-12-21 | 2019-02-22 | 中水电第十工程局（郑州）有限公司 | A kind of cast-in-place concrete pile loading test device and detection method |
-
2018
- 2018-12-21 CN CN201822149804.4U patent/CN209723059U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372039A (en) * | 2018-12-21 | 2019-02-22 | 中水电第十工程局（郑州）有限公司 | A kind of cast-in-place concrete pile loading test device and detection method |
| CN109372039B (en) * | 2018-12-21 | 2023-11-03 | 中电建十一局工程有限公司 | Concrete cast-in-place pile bearing capacity detection device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200303 Address after: 450000 No.01, unit 1, building 85, No.1 Cuizhu street, high tech Zone, Zhengzhou City, Henan Province Patentee after: Henan mainstay Engineering Testing Co.,Ltd. Address before: 450000 No. 59 Lianhua Street, Zhengzhou High-tech District, Henan Province Co-patentee before: SINOHYDRO BUREAU 11 Co.,Ltd. Patentee before: China Power Construction Eleventh Bureau Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |