CN105937250B - Inclined steel-pipe pile self-balancing approach test structure and method of testing - Google Patents
Inclined steel-pipe pile self-balancing approach test structure and method of testing Download PDFInfo
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- CN105937250B CN105937250B CN201610386949.9A CN201610386949A CN105937250B CN 105937250 B CN105937250 B CN 105937250B CN 201610386949 A CN201610386949 A CN 201610386949A CN 105937250 B CN105937250 B CN 105937250B
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- pipe pile
- inclined steel
- steel
- load box
- helical pitch
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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)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Inclined steel-pipe pile self-balancing approach test structure, including inclined steel-pipe pile, it is located at inclined steel-pipe pile internal loading case, it is characterised in that：Overhead gage and lower baffle plate are installed in the inclined steel-pipe pile, chute is offered on the lower baffle plate；Helical pitch steel wire extends to below chute through load box and block is connected with its bottom, and the inclined steel-pipe pile top is provided with helical pitch ring, and helical pitch steel wire extends to the top of inclined steel-pipe pile and setting fastening is on helical pitch ring；Compared with prior art, it is an advantage of the invention that：Present apparatus construction is simple, while the angle of the tilt adjustable section datum line beam particular for inclined steel-pipe pile, make both quickly correspond to；After the completion of construction, load box can be drawn out recycling, be adapted to promote the use of.
Description
Technical field
The invention belongs to Bridge Inspection field, and in particular to a kind of inclined steel-pipe pile self-balancing approach test structure and test
Method.
Background technology
Load box is a kind of special loading device of building trade pile foundation bearing capacity self-balance test, is one group
（It is one or more）The structural assembly of jack (pressure unit).Common load box, it is generally divided into the conventional oil being slidingly sealed
Cylinder（Piston type or plunger type）For working cell and using the pressure unit of cavate sealing as working cell two types.Based on cavate
The advantage of Sealing Technology, in the application in pile measurement field, cavate pressure unit has in high volume replaced traditional slip close
The jack of envelope.
Patent application publication CN103147465A discloses a kind of load box for the test of open caisson self-balancing approach of knowing clearly, bag
Include load casing, hydraulic jack, the hydraulic oil pipe and hydraulic loading device being sequentially connected with hydraulic jack；The load casing bag
Doughnut-shaped steel plate, lower doughnut-shaped steel plate, outer ring baffle plate, annular baffle plate are included, wherein, above and below upper doughnut-shaped steel plate and lower doughnut-shaped steel plate
It is oppositely arranged, annular baffle plate and outer ring baffle plate are respectively provided at the inner side and periphery of doughnut-shaped steel plate and lower doughnut-shaped steel plate, and
Closed casing, when hydraulic jack preloads, upper doughnut-shaped steel plate and lower annular are formed with upper doughnut-shaped steel plate and lower doughnut-shaped steel plate
Steel plate can be moved up and down each；The hydraulic jack is located in load box body, and the bottom of hydraulic jack is connected in lower doughnut-shaped steel plate
On, the piston of hydraulic jack contacts with upper doughnut-shaped steel plate；The load box for the test of open caisson self-balancing approach also includes being used for
Doughnut-shaped steel plate and the displacement transfer device of lower doughnut-shaped steel plate displacement in test.
Using the most important device of self-balancing peg be it is a kind of by it is well-designed can be used for loading load box, the device
Mainly it is made up of the hydraulic jack of the positioning load-bearing steel plate at connection two sections pile crown and inside.Load box is fixed on steel
At stake equalization point computed in advance, pressed by built-in hydraulic jack, promote upper location-plate and hypomere stake, realized up and down
Two section stakes are moved up and down respectively, are delivered to ground by displacement signal by the displacement transfer device being connected on load box
Face, corresponding curve is drawn according to reading, judge pile bearing capacity, pile foundation settlement, stake elastic compression and ground plastic deformation.Pass through
Both sides are embedded in the reinforcing steel strain gauge in pile body in advance, can be obtained by reasoning the pile shaft force at each stake interface under load at different levels,
Frictional resistance is with load and the transfer law of change in depth.
One of the characteristics of inclined steel-pipe pile is exactly that pile body and gravity vertical are angled, can play withdrawal resistance and ship pulls in shore
When horizontal impact power be transferred to rock stratum.Applied on long piled wharf than wide, it is stable in order to increase it in addition such as footbridge
Property, resistance river waterflow also uses inclined steel-pipe pile to the horizontal thrust and other horizontal forces of walking Bridge Foundation, in general, its
Construction difficulty is higher.
Inclined steel-pipe pile majority is squeezed into opening, and soil can be poured in inside steel-pipe pile, can produce larger piling impact in addition
Power, make to be deformed at load box special joint, causing load box displacement that the changing of the relative positions occurs can not be tested, and load box has been tested
After can not take out recycling, for specific load box, its processing cost and resource are relatively not environmentally.
The content of the invention
The present invention is in view of the shortcomings of the prior art, it is proposed that a kind of inclined steel-pipe pile self-balancing approach test structure and test side
Method, the structure and method are simple in construction, easy to operate, are adapted to promote the use of.
To realize the purpose of the present invention, the technical solution adopted by the present invention is：
Inclined steel-pipe pile self-balancing approach test structure, including inclined steel-pipe pile, are located at inclined steel-pipe pile internal loading case, and its feature exists
In：Overhead gage and lower baffle plate are installed in the inclined steel-pipe pile, chute is offered on the lower baffle plate；Helical pitch steel wire passes through load
Case is extended to below chute, and the bottom of helical pitch steel wire is connected with block, and the inclined steel-pipe pile top is provided with helical pitch ring, helical pitch steel wire
Extend to the top of inclined steel-pipe pile and pass through helical pitch ring；
Datum line beam is provided with above the inclined steel-pipe pile, described datum line beam one end is provided with pivoting support one, pivoting support one
Lower section is provided with lift, and the datum line beam other end is provided with pivoting support two；Magnetic gauge stand is fixed with the datum line beam,
Displacement transducer is provided with below Magnetic gauge stand, displacement bar is connected with below displacement transducer；The displacement bar totally 4, wherein：Two
The upper plate of individual displacement bar connection load box is shifted up for measurement, and the lower shoe of two other displacement bar connection load box is used
In measurement to bottom offset, digital angle instrument is also equipped with the pivoting support two, fixture is also equipped with datum line beam, it is described
Fixture is provided with suspension ring.
Preferentially, the internal diameter of the overhead gage is more than the internal diameter of lower baffle plate；Supporting construction is also equipped with the load box.
Preferentially, the supporting construction includes fagging and the fixed block being connected to above upper plate, and shifting chute is located at fagging
Both sides, are hinge structure between the fagging and fixed block, and fagging can rotate around fixed block, is provided with the shifting chute
Suspension hook block, connecting rope are connected to above suspension hook block and extended on the outside of inclined steel-pipe pile.
Based on said apparatus, the invention also provides a kind of inclined steel-pipe pile self-balancing approach test structure method of testing, and it is special
Sign is, comprises the following steps：
1）Inclined steel-pipe pile is set, and is removed the sediment in inclined steel-pipe pile totally with reacting cycle sediment separator；
2）Helical pitch steel wire is passed through into load box and helical pitch ring, load box is moved down into lower baffle plate along the track of helical pitch steel wire
On, in load box folding process, connecting rope is in tension, fagging is upturned, is easy to supporting construction to pass through
Overhead gage；
3）Start reference for installation beam, hooking suspension ring lifting datum line beam movement by handling apparatus is installed to setting position, leads to
Crossing lift lift adjustment makes datum line beam displacement bar is parallel to each other with inclined steel-pipe pile, and the angles of display for reading digital angle instrument is true
It is whether parallel with inclined steel-pipe pile to recognize displacement bar, and sets displacement transducer, and connects data collecting instrument；
4）Loosen connecting rope, make to be in 90 degree between fagging and fixed block, now fagging withstands inclined steel-pipe pile, and load box is consolidated
Fixed, preparation terminates before test；
5）Begin through high-pressure oil pump to be tested to the oil-filled loading of load box, displacement transducer constantly detects displacement number
According to until test terminates；
6）Connecting rope is tensed, constantly above carried, load box moves up along by helical pitch steel wire, finally takes out.
Compared with prior art, it is an advantage of the invention that：Present apparatus construction is simple, while particular for inclined steel-pipe pile
The angle of tilt adjustable section datum line beam, makes both quickly correspond to；After the completion of construction, load box can be drawn out repetition profit
With, it is green, it is adapted to promote the use of.
Brief description of the drawings
Brief description is next carried out to the present invention by means of the accompanying drawing of embodiment now.In accompanying drawing：
Fig. 1 shows the schematic diagram of inclined steel-pipe pile self-balancing approach test structure of the present invention；
Fig. 2 shows the structural representation of supporting construction of the present invention；
Fig. 3 shows the structural representation of datum line beam of the present invention；
Fig. 4 shows the structural representation that present clip is arranged on datum line beam.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
As illustrated, inclined steel-pipe pile self-balancing approach test structure, including inclined steel-pipe pile 3, it is located at the internal loading case of inclined steel-pipe pile 3
6, overhead gage 8 and lower baffle plate 10 are installed, the internal diameter of overhead gage 8 is more than the internal diameter of lower baffle plate 10 in the inclined steel-pipe pile 3；So
Load box 6 can wear only lower baffle plate 10 by overhead gage 8, and chute 11 is offered on lower baffle plate 10；Helical pitch steel wire 2 passes through load
Case 6 extends to the lower section of chute 11, and the bottom of helical pitch steel wire 2 is connected with block 12, and the top of inclined steel-pipe pile 3 is provided with helical pitch ring 1,
Helical pitch steel wire 2 extends to the top of inclined steel-pipe pile 3 and passes through helical pitch ring 1, because helical pitch steel wire 2 is to the limited displacement of load box 6
It is set for using, can effectively prevents load box 6 from being collided with inclined steel-pipe pile 3, the top of helical pitch steel wire 2 is tensed with pulley.
The top of inclined steel-pipe pile 3 is provided with datum line beam 17, and described one end of datum line beam 17 is provided with pivoting support 1, pivoting support
One 13 lower sections are provided with lift 14, and the other end of datum line beam 17 is provided with pivoting support 2 50；It is solid on the datum line beam 17
Surely be magnetic gauge stand 18, and the lower section of Magnetic gauge stand 18 is provided with displacement transducer 15, and the lower section of displacement transducer 15 is connected with displacement bar 16；
The displacement bar 16 totally 4, wherein：The upper plate 4 of two displacement bars connection load boxes 6 shifts up for measurement, and in addition two
The lower shoe 7 of individual displacement bar connection load box 6 is used to measuring to bottom offset, and digital angle is also equipped with the pivoting support 2 50
Instrument 51 is spent, digital angle instrument 51 connects computer, the display base that staff passes through data digital inclinometer 51 by data wire
The angle that quasi- beam 17 is offset determines whether displacement bar 16 is parallel with inclined steel-pipe pile 3, fixture 60 is also equipped with datum line beam 17, presss from both sides
The quantity of tool 60 is four, one end two, and is symmetrically installed, and the fixture 60 is provided with suspension ring 61.
Supporting construction 9 is also equipped with load box 6, supporting construction 9 includes fagging 904 and is connected to above upper plate 4
Fixed block 906, shifting chute 901 are located at the both sides of fagging 904, are hinge structure between the fagging 904 and fixed block 906, fagging
904 can rotate around fixed block 906, be provided with suspension hook block 902 in the shifting chute 901, connecting rope is connected to suspension hook block 902
Above and extend the outside of inclined steel-pipe pile 3, connecting rope can pull fagging 904 to rotate, and connecting rope is nylon rope or steel
Cord.
Based on said apparatus, the invention also provides a kind of inclined steel-pipe pile self-balancing approach test structure method of testing, including
Following steps：
1）The position that precalculated load box 6 is placed, is welded overhead gage 8 and lower baffle plate 10,2 steel-pipe weldings is arrived
One piece of formation inclined steel-pipe pile 3, sets inclined steel-pipe pile 3, and remove the sediment in inclined steel-pipe pile 3 with reacting cycle sediment separator and do
Only；
2）Helical pitch steel wire 2 is passed through into load box 6 and helical pitch ring 1, load box 6 is moved down into along the track of helical pitch steel wire 2
On lower baffle plate 10, in the folding process of load box 6, connecting rope is in tension, fagging 904 is upturned, and is easy to support
Structure 9 passes through overhead gage 8；
3）Start reference for installation beam 17, hooking the lifting movement of datum line beam 17 of suspension ring 61 by handling apparatus is installed to setting position
Put, make datum line beam 17 displacement bar 16 is parallel to each other with inclined steel-pipe pile 3 by the lift adjustment of lift 14, read digital angle instrument
51 angles of display confirms whether displacement bar 16 is parallel with inclined steel-pipe pile 3, and sets displacement transducer 15, and connects data
Acquisition Instrument；
4）Loosen connecting rope, make to be in 90 degree between fagging 904 and fixed block 906, now fagging 904 withstands inclined steel-pipe pile 3,
Load box 6 is fixed, and preparation terminates before test；
5）Begin through high-pressure oil pump to be tested to the oil-filled loading of load box 6, displacement transducer 15 constantly detects displacement
Data, until test terminates；
6）Connecting rope is tensed, constantly above carried, load box 6 moves up along by helical pitch steel wire 2, finally takes out.
Claims (1)
1. inclined steel-pipe pile self-balancing approach test structure method of testing, it is characterised in that comprise the following steps：
1）Set inclined steel-pipe pile（3）, and with reacting cycle sediment separator by inclined steel-pipe pile（3）Interior sediment is removed clean；
2）By helical pitch steel wire（2）Through load box（6）With helical pitch ring（1）, make load box（6）Along helical pitch steel wire（2）Track
Move down into lower baffle plate（10）On, in load box（6）In folding process, connecting rope is in tension, makes fagging（904）Upwards
Tilt, be easy to supporting construction（9）Pass through overhead gage（8）；
3）Start reference for installation beam（17）, suspension ring are hooked by handling apparatus（61）Lift datum line beam（17）Movement is installed to setting
Position, pass through lift（14）Lift adjustment makes datum line beam（17）Displacement bar（16）With inclined steel-pipe pile（3）It is parallel to each other, reads
Digital angle instrument（51）Angles of display confirm displacement bar（16）And inclined steel-pipe pile（3）It is parallel, set displacement transducer（15）,
And connect data collecting instrument；
4）Loosen connecting rope, make fagging（904）And fixed block（906）Between be in 90 degree, now fagging（904）Withstand inclined steel-pipe pile
（3）, load box（6）Fixed, preparation terminates before test；
5）High-pressure oil pump is begun through to load box（6）Oil-filled loading is tested, displacement transducer（15）Constantly detection displacement
Data, until test terminates；
6）Connecting rope is tensed, constantly above carried, load box（6）Along passing through helical pitch steel wire（2）Move up, finally take out；
Above-mentioned method of testing is completed by inclined steel-pipe pile self-balancing approach test structure, described to be surveyed by inclined steel-pipe pile self-balancing approach
Examination structure includes inclined steel-pipe pile, is located at inclined steel-pipe pile internal loading case, is provided with overhead gage and lower baffle plate in the inclined steel-pipe pile, institute
State and chute is offered on lower baffle plate；Helical pitch steel wire is extended to below chute through load box, and the bottom of helical pitch steel wire is connected with gear
Block, the inclined steel-pipe pile top are provided with helical pitch ring, and helical pitch steel wire extends to the top of inclined steel-pipe pile and passes through helical pitch ring；
Datum line beam is provided with above the inclined steel-pipe pile, described datum line beam one end is provided with pivoting support one, the lower section of pivoting support one
Lift is installed, the datum line beam other end is provided with pivoting support two；Magnetic gauge stand, magnetic are fixed with the datum line beam
Displacement transducer is provided with below gauge stand, displacement bar is connected with below displacement transducer；The displacement bar totally 4, wherein：Two positions
The upper plate for moving bar connection load box shifts up for measurement, and the lower shoe of two other displacement bar connection load box is used to survey
Measure to bottom offset, digital angle instrument is also equipped with the pivoting support two, fixture, the fixture are also equipped with datum line beam
It is provided with suspension ring；The internal diameter of the overhead gage is more than the internal diameter of lower baffle plate；Supporting construction is also equipped with the load box；
The supporting construction includes fagging and the fixed block being connected to above upper plate, and shifting chute is located at fagging both sides, the support
It is hinge structure between plate and fixed block, fagging can be rotated around fixed block, and suspension hook block is provided with the shifting chute, be connected
Rope is connected to above suspension hook block and extended on the outside of inclined steel-pipe pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610386949.9A CN105937250B (en) | 2015-08-12 | 2015-08-12 | Inclined steel-pipe pile self-balancing approach test structure and method of testing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610386949.9A CN105937250B (en) | 2015-08-12 | 2015-08-12 | Inclined steel-pipe pile self-balancing approach test structure and method of testing |
| CN201510490440.4A CN105064421B (en) | 2015-08-12 | 2015-08-12 | Testing structure and testing method of steel pipe inclined pile self-balance method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510490440.4A Division CN105064421B (en) | 2015-08-12 | 2015-08-12 | Testing structure and testing method of steel pipe inclined pile self-balance method |
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| Publication Number | Publication Date |
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| CN105937250A CN105937250A (en) | 2016-09-14 |
| CN105937250B true CN105937250B (en) | 2018-02-09 |
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| CN201510490440.4A Active CN105064421B (en) | 2015-08-12 | 2015-08-12 | Testing structure and testing method of steel pipe inclined pile self-balance method |
| CN201610386949.9A Active CN105937250B (en) | 2015-08-12 | 2015-08-12 | Inclined steel-pipe pile self-balancing approach test structure and method of testing |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896712A (en) * | 2006-06-14 | 2007-01-17 | 郭杨 | Planar loading testing method and tester for self-balanced deep foundation piles |
| CN201463838U (en) * | 2009-05-31 | 2010-05-12 | 葛云峰 | Displacement acquisition device for self-balance loading method |
| CN102121254A (en) * | 2011-01-17 | 2011-07-13 | 东南大学 | Load box for testing bearing capacity of steel pipe pile |
| CN102535529A (en) * | 2011-12-08 | 2012-07-04 | 中铁五局（集团）有限公司 | Construction method of self-balancing method pile foundation bearing capacity test device |
| KR101188004B1 (en) * | 2009-12-22 | 2012-10-04 | 성균관대학교산학협력단 | Loading Device For Pile Load Test |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2401189A (en) * | 2003-02-28 | 2004-11-03 | Roxbury Ltd | Friction and bearing force testing apparatus |
| CN103147465B (en) * | 2013-03-04 | 2014-02-12 | 东南大学 | Load box for testing open caisson with self-balancing method |
| CN103422517B (en) * | 2013-08-23 | 2016-02-10 | 南昌永祺科技发展有限公司 | Superposing type pile body self-rebound force balance loading case |
| CN204163118U (en) * | 2014-08-28 | 2015-02-18 | 浙江龙舜建设集团有限公司 | Self-balancing peg structure |
-
2015
- 2015-08-12 CN CN201510490440.4A patent/CN105064421B/en active Active
- 2015-08-12 CN CN201610386949.9A patent/CN105937250B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896712A (en) * | 2006-06-14 | 2007-01-17 | 郭杨 | Planar loading testing method and tester for self-balanced deep foundation piles |
| CN201463838U (en) * | 2009-05-31 | 2010-05-12 | 葛云峰 | Displacement acquisition device for self-balance loading method |
| KR101188004B1 (en) * | 2009-12-22 | 2012-10-04 | 성균관대학교산학협력단 | Loading Device For Pile Load Test |
| CN102121254A (en) * | 2011-01-17 | 2011-07-13 | 东南大学 | Load box for testing bearing capacity of steel pipe pile |
| CN102535529A (en) * | 2011-12-08 | 2012-07-04 | 中铁五局（集团）有限公司 | Construction method of self-balancing method pile foundation bearing capacity test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105064421B (en) | 2017-01-11 |
| CN105937250A (en) | 2016-09-14 |
| CN105064421A (en) | 2015-11-18 |
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Inventor after: Shi Adan Inventor before: Lin Hui |
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Effective date of registration: 20180105 Address after: Furong Town Yueqing city of Zhejiang province Wenzhou City West Village 325612 Applicant after: Shi Adan Address before: Street peak village Dinghai District of Lincheng city of Zhoushan province Zhejiang 316000 Ni Jia No. 19 Applicant before: Zhoushan Zhihai Technology Development Co., Ltd. |
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Effective date of registration: 20180402 Address after: No. 2, No. 5, Xiu Garden Road, Qingdao high tech Zone, Shandong Province Patentee after: Qingdao Haizhi Detection Technology Co. Ltd. Address before: Furong Town Yueqing city of Zhejiang province Wenzhou City West Village 325612 Patentee before: Shi Adan |