CN109056849A - A kind of device and preparation method thereof for bored concrete pile high strain dynamic testing - Google Patents
A kind of device and preparation method thereof for bored concrete pile high strain dynamic testing Download PDFInfo
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- CN109056849A CN109056849A CN201810735312.5A CN201810735312A CN109056849A CN 109056849 A CN109056849 A CN 109056849A CN 201810735312 A CN201810735312 A CN 201810735312A CN 109056849 A CN109056849 A CN 109056849A
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- fixture
- follow block
- fixed
- concrete pile
- high strain
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- Engineering & Computer Science (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The device and preparation method thereof that the present invention provides a kind of for bored concrete pile high strain dynamic testing, wherein, device includes: a clamping assembly, its top for being set to top beam, it include: the first follow block, second support block, first fixture, second fixture and hydraulic cylinder, first follow block and the second follow block are set to the two sides of described hole, upper surface perpendicular to top beam is simultaneously secured to, first fixture and the second fixture are set to the two sides between the first follow block and the second follow block and being located at hole, wherein, first fixture is fixed on the first follow block, hydraulic cylinder is fixed on the second follow block, second fixture is fixed on the mandrel ends of hydraulic cylinder, in the telescopic direction for the mandril that first fixture and the second fixture are located at hydraulic cylinder, first fixture and the second fixture when merging between form clamping portion.Device provided by the invention alleviates weight using frame structure, reduces the difficulty of transport and test；Reduce in testing using crane, reduces security risk and operating cost.
Description
Technical field
The present invention relates to technical field of building construction, especially a kind of device and its system for bored concrete pile high strain dynamic testing
Make method.
Background technique
The detection of foundation pile high stress method is to apply an impact force along axial in stake top, and stake is made to generate enough pile penetrations, real
The response for surveying resulting pile body particle stress and acceleration, is analyzed by wave theory, determines single pile vertical resistance pressure carrying
The detection method of power and pile body integrity.
This test method needs to apply certain impact force along pile body in stake top, adds leading truck usually using weight at present
Mode carry out, see Fig. 1.In such a way that weight 402 and leading truck 401 cooperate, need to be promoted weight 402 with crane
To certain altitude, using breaking off relations 404 for 402 abrupt release of weight, weight 402 is slided along leading truck 401, bump test stake
Body, while sensor 405 completes dynamic test to pile body.It is provided with pallet 403 between weight 402 and test pile body, prevents from hammering into shape
It hits and causes test pile body end face impaired.Such test method is primarily present following problem at present:
(1) the general height 4-6m of leading truck 401, weight 2-3T, due to bulky, weight is larger, increases transport and test
Difficulty；
(2) it after weight 402 impacts pile body, easily collides with leading truck 401, causes to influence data to the secondary pulse of pile body
The acquisition of signal；
(3) in test, crane is needed to promote weight 402, increases security risk and effect cost in test process.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of device for bored concrete pile high strain dynamic testing and its production sides
Method, the weight of alleviator reduce the difficulty of transport with test；It designs, is avoided to pile body secondary pulse without using guide frame；
It is reduced in test and uses crane, reduce security risk and operating cost.
A kind of device for bored concrete pile high strain dynamic testing, comprising:
One bottom beam component connects into " mouth " font by four foundation beams；
One vertical beam component, the vertical beam being vertically arranged including four, each vertical beam are fixed on the connection of two bottom beams
Place；
Multiple transverse beam assemblies, each described transverse beam assembly include four crossbeams being generally aligned in the same plane, each crossbeam
It is connected between two vertical beams and perpendicular to the vertical beam, prolonging direction cloth of multiple transverse beam assemblies along the vertical beam
It sets；
One top beam is fixed on the top of the transverse beam assembly of the top, vertically offers the hole of a perforation, institute thereon
The projection of the center of hole in the horizontal plane is stated to be overlapped with the center of the bottom beam component；
One clamping assembly is set to the top of the top beam, comprising: the first follow block, the second support block, the first fixture, the second folder
Tool and hydraulic cylinder, first follow block and second follow block are set to the two sides of described hole, perpendicular to the top beam
Upper surface is simultaneously secured to, first fixture and second fixture be set to first follow block and second follow block it
Between and be located at described hole two sides, wherein first fixture is fixed on first follow block, and the hydraulic cylinder is fixed
In on second follow block, second fixture is fixed on the mandrel ends of the hydraulic cylinder, first fixture and described
Second fixture is located in the telescopic direction of the mandril of the hydraulic cylinder, and first fixture and second fixture are when merging
Between formed clamping portion；
One pull rod is vertically arranged and is sheathed in described hole, the cross-sectional shape of cross-sectional shape and the clamping portion
Match；
One weight, including beading rod and plurality of steel plates, beading rod steel plate described in the muti-piece is simultaneously hinged with the pull rod, more
Steel plate described in block piles up the end for being laminated on the beading rod.
Further, further includes: multiple reinforcing rods, the reinforcing rod are vertically arranged, and solid with multiple transverse beam assemblies
Fixed connection.
Further, further includes: ladder is fixed on the side of device.
Further, the top beam is hollow structure, and cross section is rectangle.
Further, the bottom beam is I-steel, and the crossbeam is angle steel.
The present invention also provides a kind of production methods of device for bored concrete pile high strain dynamic testing, include the following steps:
A: four foundation beams are connected into " mouth " font by one bottom beam component of production；
B: a vertical beam being vertically arranged is fixed in the junction of every two bottom beams, four vertical beams form a vertical beam group
Part；
C: arrange that multiple transverse beam assemblies, each described transverse beam assembly include positioned at same along the prolonging direction of the vertical beam
Four crossbeams of plane, each crossbeam are connected between two vertical beams and perpendicular to the vertical beam；
D: one top beam is set in the top of the transverse beam assembly of the top, the hole of a perforation is vertically opened up on the top beam
Hole is overlapped the projection of the center of described hole in the horizontal plane with the center of the bottom beam component；
E: one clamping assembly is set in the top of the top beam, the clamping assembly includes: the first follow block, the second support block, first
Fixture, the second fixture and hydraulic cylinder, first follow block and second follow block are set to the two sides of described hole, perpendicular to
The upper surface of the top beam is simultaneously secured to, and first fixture and second fixture are set to first follow block and described
Two sides between second follow block and positioned at described hole, wherein first fixture is fixed on first follow block, the liquid
Compressing cylinder is fixed on second follow block, and second fixture is fixed on the mandrel ends of the hydraulic cylinder, and described first
In the telescopic direction for the mandril that fixture and second fixture are located at the hydraulic cylinder, first fixture and second folder
Have between when merging and forms clamping portion；
F: being arranged a pull rod in described hole, keeps it vertical, the cross-sectional shape phase of cross-sectional shape and the clamping portion
Matching；
G: in the hinged weight in the bottom end of the pull rod, the weight includes: beading rod and plurality of steel plates, and the beading rod runs through
Steel plate described in muti-piece is simultaneously hinged with the pull rod, and steel plate described in muti-piece piles up the end for being laminated on the beading rod.
Further, further include step H: in the fixed multiple reinforcing rods in the side of device, the reinforcing rod is vertically arranged, and
It is fixedly connected with multiple transverse beam assemblies；
Further, further include step I: fixing a ladder in the side of device.
Further, the top beam is hollow structure, and cross section is rectangle.
Further, further include step J: smearing antirust paint in apparatus surface.
Provided by the present invention for the device and preparation method thereof of bored concrete pile high strain dynamic testing, device uses frame structure,
Weight is alleviated, the difficulty of transport and test is reduced；It designs, is avoided to pile body secondary pulse without using guide frame；It uses
Clamping assembly fixes weight, when hydraulic cylinder is shunk, drives the second fixture mobile, clamping assembly releasing lever, weight is freely fallen
Body reduces in testing using crane, reduces security risk and operating cost；In addition, pull rod and weight are hinged, avoid
Active force of the weight in release moment by horizontal direction, it is ensured that safety, also, ensure that the precision of high strain dynamic testing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is schematic perspective view of the present invention for the device of bored concrete pile high strain dynamic testing；
Fig. 3 is main view of the present invention for the device of bored concrete pile high strain dynamic testing；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the enlarged drawing of the partial view A in Fig. 4.
In figure, 100. bottom beam components, 101. bottom beams, 200. vertical beam components, 201. vertical beams, 300. transverse beam assemblies,
301. crossbeams, 400. top beams, 411. holes, 500. clamping assemblies, 501. first follow blocks, 502. second follow blocks, 503.
First fixture, 504. second fixtures, 505. hydraulic cylinders, 506. clamping portions, 507. first stiffening plates, 508. second add
Strong plate, 600. pull rods, 700. weights, 701. beading rods, 702. steel plates, 800. reinforcing rods, 900. ladders, 401. lead
To frame, 402. weights, 403. pallets, 404. break off relations, 405. sensors.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
A kind of device for bored concrete pile high strain dynamic testing, as shown in Fig. 2 ~ 5, comprising:
One bottom beam component 100 connects into " mouth " font by four foundation beams 101；
One vertical beam component 200, including four vertical beams being vertically arranged 201, each vertical beam 201 is fixed on two bottoms
The junction of beam 101；
Multiple transverse beam assemblies 300, each described transverse beam assembly 300 includes: four crossbeams 301 being generally aligned in the same plane, each
Crossbeam 301 described in root is connected between two vertical beams 201 and perpendicular to the vertical beam 201, multiple transverse beam assembly 300
Prolonging direction along the vertical beam 201 is arranged；
One top beam 400 is fixed on the top of the transverse beam assembly 300 of the top, vertically offers a perforation thereon
Hole 411, the projection of the center of described hole 411 in the horizontal plane are overlapped with the center of the bottom beam component 100, the top beam
It (400) can be hollow structure, to mitigate weight, cross section is rectangle, to guarantee to be stably fixed to transverse beam assembly 300
Top, meanwhile, it is convenient that clamping assembly 500 is installed in its top surface；
One clamping assembly 500 is set to the top of the top beam 400, comprising: the first follow block 501, the second support block 502, first
Fixture 503, the second fixture 504 and hydraulic cylinder 505, first follow block 501 and second follow block 502 are set to the hole
The two sides in hole 411, upper surface perpendicular to the top beam 400 are simultaneously secured to, first fixture 503 and second fixture
504 are set between first follow block 501 and second follow block 502 and are located at the two sides of described hole 411, wherein institute
The first fixture 503 to be stated to be fixed on first follow block 501, the hydraulic cylinder 503 is fixed on second follow block 502,
Second fixture 504 is fixed on the mandrel ends of the hydraulic cylinder 505, first fixture 503 and second fixture
504 are located in the telescopic direction of the mandril of the hydraulic cylinder 505, and first fixture 503 and second fixture 504 are closing
And when between form clamping portion 506, can be therebetween to guarantee that the first follow block 501 and the second support block 502 are steadily fixed
The second stiffening plate 508 is arranged in the outside for connecting the first stiffening plate 507 and the two (see Fig. 5)；
One pull rod 600 is vertically arranged and is sheathed in described hole 401, the cross of cross-sectional shape and the clamping portion 506
Cross sectional shape matches, and when the mandril of hydraulic cylinder 503 stretches out, mandril drives the second fixture 504 mobile, the first fixture 503
Close up with the second fixture 504, forms clamping portion 506, clamping portion 506 clamps pull rod 600, its tenesmus prevented, in hydraulic cylinder
When 503 mandril retraction, mandril drives the second fixture 504 mobile, the first fixture 503 and the separation of the second fixture 504, pull rod 600
It falls；
One weight 700, including beading rod 701 and plurality of steel plates 702, the beading rod 701 steel plate 702 described in the muti-piece and with
The pull rod 600 is hinged, the horizontal direction active force of tension member 600 when preventing weight 700 from dropping, and steel plate 702 described in muti-piece is piled up
It is laminated on the end of the beading rod 701, the weight of weight 700 can be increased and decreased as needed.
For guarantee device intensity, further includes: multiple reinforcing rods 800, the reinforcing rod 800 are vertically arranged, and with it is multiple
The transverse beam assembly 300 is fixedly connected.
For convenience of the superstructure of mounting device, further includes: ladder 900 is fixed on the side of device.
For save the cost and facilitate materials, the bottom beam 101 can be I-steel, and the crossbeam 301 can be angle steel.
A kind of production method of the device for bored concrete pile high strain dynamic testing includes the following steps: with reference to Fig. 2 ~ 5
A: four foundation beams 101 are connected into " mouth " font by one bottom beam component 100 of production；
B: a vertical beam 201 being vertically arranged, four formation of vertical beam 201 are fixed in the junction of every two bottom beams 101
One vertical beam component 200；
C: the prolonging direction along the vertical beam 201 arranges multiple transverse beam assemblies 300, each described transverse beam assembly 300 wraps
Four crossbeams 301 being generally aligned in the same plane are included, each crossbeam 301 is connected between two vertical beams 201 simultaneously vertical
In the vertical beam 201；
D: one top beam 400 is set in the top of the transverse beam assembly 300 of the top, is vertically opened up on the top beam 400
The hole 411 of one perforation makes the center weight of the projection of the center of described hole 411 in the horizontal plane with the bottom beam component 100
It closes, the top beam 400 can be hollow structure, and cross section can be rectangle；
E: one clamping assembly 500 is set in the top of the top beam 400, the clamping assembly 500 includes: the first follow block 501, the
Two support blocks 502, the first fixture 503, the second fixture 504 and hydraulic cylinder 505, first follow block 501 and second follow block
502 are set to the two sides of described hole 411, and the upper surface perpendicular to the top beam 400 is simultaneously secured to, first fixture
503 and second fixture 504 be set between first follow block 501 and second follow block 502 and be located at described hole
411 two sides, wherein first fixture 503 is fixed on first follow block 501, and the hydraulic cylinder 503 is fixed on institute
It states on the second follow block 502, second fixture 504 is fixed on the mandrel ends of the hydraulic cylinder 505, first fixture
503 and second fixture 504 mandril that is located at the hydraulic cylinder 505 telescopic direction on, first fixture 503 and institute
State the second fixture 504 merge when between formed clamping portion 506；
F: being arranged a pull rod 600 in described hole 411, keeps it vertical, cross-sectional shape is transversal with the clamping portion 506
Face shape matches；
G: in the hinged weight 700 in the bottom end of the pull rod 600, the weight 700 includes: beading rod 701 and plurality of steel plates
702, the beading rod 701 is through steel plate 702 described in muti-piece and hinged with the pull rod 600, and the pile of steel plate 702 described in muti-piece is laminated on
The end of the beading rod 701；
H: in the fixed multiple reinforcing rods 800 in the side of device, the reinforcing rod 800 is vertically arranged, and with multiple crossbeam groups
Part 300 is fixedly connected；
I: a ladder 900 is fixed in the side of device；
J: antirust paint is smeared in apparatus surface.
The scope of protection of the present invention is not limited to this.Those skilled in the art are made equivalent on the basis of the present invention
Substitution or transformation, it is within the scope of the present invention.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of device for bored concrete pile high strain dynamic testing characterized by comprising
One bottom beam component (100) connects into " mouth " font by four foundation beams (101)；
One vertical beam component (200), including four vertical beams being vertically arranged (201), each vertical beam (201) is fixed on two
The junction of the bottom beam (101)；
Multiple transverse beam assemblies (300), each described transverse beam assembly (300) include: four crossbeams being generally aligned in the same plane
(301), each crossbeam (301) is connected between two vertical beams (201) and perpendicular to the vertical beam (201), more
A transverse beam assembly (300) is arranged along the prolonging direction of the vertical beam (201)；
One top beam (400) is fixed on the top of the transverse beam assembly (300) of the top, vertically offers thereon consistent
The center weight of logical hole (411), the projection of the center of described hole (411) in the horizontal plane and the bottom beam component (100)
It closes；
One clamping assembly (500), is set to the top of the top beam (400), comprising: the first follow block (501), the second support block
(502), the first fixture (503), the second fixture (504) and hydraulic cylinder (505), first follow block (501) and described second
Follow block (502) is set to the two sides of described hole (411), and the upper surface perpendicular to the top beam (400) is simultaneously secured to, described
First fixture (503) and second fixture (504) be set to first follow block (501) and second follow block (502) it
Between and be located at described hole (411) two sides, wherein first fixture (503) is fixed on first follow block (501),
The hydraulic cylinder (503) is fixed on second follow block (502), and second fixture (504) is fixed on the hydraulic oil
The mandrel ends of cylinder (505), first fixture (503) and second fixture (504) are located at the hydraulic cylinder (505)
In the telescopic direction of mandril, first fixture (503) and second fixture (504) when merging between form clamping portion
(506)；
One pull rod (600) is vertically arranged and is sheathed in described hole (401), cross-sectional shape and the clamping portion
(506) cross-sectional shape matches；
One weight (700), including beading rod (701) and plurality of steel plates (702), the beading rod (701) is through steel described in muti-piece
Plate (702) and with the pull rod (600) hingedly, steel plate described in muti-piece (702), which is piled up, is laminated on the ends of the beading rod (701).
2. being used for the device of bored concrete pile high strain dynamic testing as described in claim 1, which is characterized in that further include: multiple reinforcements
Bar (800), the reinforcing rod (800) are vertically arranged, and are fixedly connected with multiple transverse beam assemblies (300).
3. being used for the device of bored concrete pile high strain dynamic testing as described in claim 1, which is characterized in that further include: ladder
(900), it is fixed on the side of device.
4. being used for the device of bored concrete pile high strain dynamic testing as described in claim 1, which is characterized in that the top beam (400) is
Hollow structure, cross section are rectangle.
5. being used for the device of bored concrete pile high strain dynamic testing as described in claim 1, which is characterized in that the bottom beam (101) is
I-steel, the crossbeam (301) are angle steel.
6. a kind of production method of the device for bored concrete pile high strain dynamic testing, which comprises the steps of:
A: four foundation beams (101) are connected into " mouth " font by one bottom beam component (100) of production；
B: a vertical beam (201) being vertically arranged, four vertical beams are fixed in the junction of every two bottom beams (101)
(201) a vertical beam component (200) is formed；
C: the prolonging direction along the vertical beam (201) arranges multiple transverse beam assemblies (300), each described transverse beam assembly
It (300) include: four crossbeams (301) being generally aligned in the same plane, each crossbeam (301) is connected to two vertical beams
(201) between and perpendicular to the vertical beam (201)；
D: one top beam (400) are set in the top of the transverse beam assembly (300) of the top, along perpendicular on the top beam (400)
To the hole (411) for opening up a perforation, make the projection of the center of described hole (411) in the horizontal plane and the bottom beam component
(100) center is overlapped；
E: one clamping assembly (500) are set in the top of the top beam (400), the clamping assembly (500) includes: the first follow block
(501), the second support block (502), the first fixture (503), the second fixture (504) and hydraulic cylinder (505), first follow block
(501) and second follow block (502) is set to the two sides of described hole (411), perpendicular to the upper surface of the top beam (400)
And be secured to, first fixture (503) and second fixture (504) are set to first follow block (501) and described
Between second follow block (502) and it is located at the two sides of described hole (411), wherein first fixture (503) is fixed on described the
On one follow block (501), the hydraulic cylinder (503) is fixed on second follow block (502), and second fixture (504) is solid
Due to the mandrel ends of the hydraulic cylinder (505), first fixture (503) and second fixture (504) are positioned at described
In the telescopic direction of the mandril of hydraulic cylinder (505), first fixture (503) and second fixture (504) are when merging
Between formed clamping portion (506)；
F: being arranged a pull rod (600) in described hole (411), keeps it vertical, cross-sectional shape and the clamping portion (506)
Cross-sectional shape match；
G: in the hinged weight (700) in the bottom end of the pull rod (600), the weight (700) includes: beading rod (701) and more
Block steel plate (702), the beading rod (701) steel plate (702) described in the muti-piece and with the pull rod (600) hingedly, muti-piece institute
State the end that steel plate (702) pile is laminated on the beading rod (701).
7. the production method for the device of bored concrete pile high strain dynamic testing as claimed in claim 6, which is characterized in that further include
Step H: in the fixed multiple reinforcing rods (800) in the side of device, the reinforcing rod (800) is vertically arranged, and with multiple cross
Beam assembly (300) is fixedly connected.
8. the production method for the device of bored concrete pile high strain dynamic testing as claimed in claim 6, which is characterized in that further include
Step I: a ladder (900) are fixed in the side of device.
9. the production method for the device of bored concrete pile high strain dynamic testing as claimed in claim 6, which is characterized in that the top
Beam (400) is hollow structure, and cross section is rectangle.
10. the production method for the device of bored concrete pile high strain dynamic testing as claimed in claim 6, which is characterized in that also wrap
It includes step J: smearing antirust paint in apparatus surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735312.5A CN109056849B (en) | 2018-07-06 | 2018-07-06 | Device for high strain test of cast-in-place pile and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735312.5A CN109056849B (en) | 2018-07-06 | 2018-07-06 | Device for high strain test of cast-in-place pile and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109056849A true CN109056849A (en) | 2018-12-21 |
| CN109056849B CN109056849B (en) | 2020-05-01 |
Family
ID=64818838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810735312.5A Active CN109056849B (en) | 2018-07-06 | 2018-07-06 | Device for high strain test of cast-in-place pile and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN109056849B (en) |
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| CN105369837A (en) * | 2015-11-06 | 2016-03-02 | 常州华厦建设工程质量检测有限公司 | Device special for high strain test of foundation pile |
| CN206056908U (en) * | 2016-08-25 | 2017-03-29 | 河南众信质量检验技术研究有限公司 | A kind of intellectual pvc pipe falling weight impact test device |
| CN106638724A (en) * | 2016-12-15 | 2017-05-10 | 中国电力科学研究院 | Hydraulic jacking high-strain hammering test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202837120U (en) * | 2012-11-01 | 2013-03-27 | 北方重工集团（沈阳）工程设计研究院有限公司 | Ore weight-drop test device for automatic clamping-locking mechanism with heavy hammer |
| CN203452105U (en) * | 2013-08-08 | 2014-02-26 | 中国水电顾问集团贵阳勘测设计研究院 | Pile laminated high strain testing heavy hammer |
| CN204064785U (en) * | 2014-04-11 | 2014-12-31 | 广州建设工程质量安全检测中心有限公司 | A kind of combination weight and a kind of high strain dynamic testing weight-driven |
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| Publication number | Publication date |
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| CN109056849B (en) | 2020-05-01 |
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