CN203654334U - Recycled jack for PHC tubular pile self-balance method test - Google Patents
Recycled jack for PHC tubular pile self-balance method test Download PDFInfo
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- CN203654334U CN203654334U CN201420009805.8U CN201420009805U CN203654334U CN 203654334 U CN203654334 U CN 203654334U CN 201420009805 U CN201420009805 U CN 201420009805U CN 203654334 U CN203654334 U CN 203654334U
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- plate
- cylinder head
- location
- uvula
- pile tube
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a recycled jack for a PHC tubular pile self-balance method test. The recycled jack for the PHC tubular pile self-balance method test comprises two vertically-symmetrical positioning plates, wherein the upper positioning plate is welded with an upper joint of a testing tubular pile, and the lower positioning plate is welded with a lower joint of the testing tubular pile. An external oil cylinder is put in a cavity of the upper joint of the testing tubular pile and arranged invertedly, an oil cylinder head penetrates the upper positioning plate and is located between the upper positioning plate and lower positioning plate, a cylinder head body is installed on the oil cylinder head, four small tongue blocks identical in structure are evenly distributed along the oil cylinder head and fixed on the outer side of the cylinder head through pins, the inner side of the cylinder head cylinder is respectively provided with four blocking plates corresponding to the small tongue blocks, the blocking plates and the small tongue blocks are connected through springs, and connecting rods are fixed at the bottoms of the small tongue blocks. The recycled jack for the PHC tubular pile self-balance method test is simple in structure, good in stability, simple and convenient to install and can be recycled after testing is finished, and the economic benefit is improved.
Description
Technical field
The utility model relates to a kind of PHC pile tube self-balance test recovery type jack.
Background technology
Along with being widely used of concrete pre-stress pile tube, adopting self-balancing approach to carry out peg to pile tube and also progressively grow up.It is a kind of by the well-designed load box that can be used for loading adopting the topmost device of self-balancing approach peg, and this device is mainly made up of the location load-bearing steel plate and the inner hydraulic jack that connect two sections pile crown place.Load box is fixed on to pile tube equalization point place computed in advance, exert pressure by built-in hydraulic jack, location-plate and hypomere stake in promotion, realize upper and lower two joint stakes motion up and down respectively, by the displacement transfer device being connected on load box, displacement signal is delivered to ground, realizes data analysis.
Common concrete pile load box is in advance in the welding of equalization point place, and then concrete perfusion, has the parcel of concrete bodies and stake to form one around load box after formation pile body, be not subject to external environmental interference; And be all in factory, to have made in advance for prestressed concrete pipe pile, as the load box with common there will be soil compaction effect in piling process, have a strong impact on the structural performance of load box.Is all generally to make special load box, internal construction is compared ordinary concrete load box and is wanted complicated a lot, is therefore design or install and all will expend a large amount of manpower and materials.In addition, load box is generally expendable consumed product, has tested rear load box and has been difficult to take out.
Summary of the invention
The utility model, in order to address the above problem, has proposed a kind of PHC pile tube self-balance test recovery type jack, and this apparatus structure is simple, and stability is strong, simple installation, and can recycle after test completes, increase economic efficiency.
To achieve these goals, the utility model adopts following technical scheme:
A kind of PHC pile tube self-balance test recovery type jack, comprises laterally zygomorphic two location-plates: upper location-plate and lower location-plate, and the upper joint welding of upper location-plate and test pile tube, lower location-plate welds with the lower joint of test pile tube; Outside oil cylinder is placed in the cavity of joint test pile tube, oil cylinder upside down, oil cylinder head runs through location-plate, between upper and lower location-plate, cylinder head body is arranged on oil cylinder head, and the uvula piece of 4 same configuration is uniformly distributed along oil cylinder head, and be fixed on the external side of cylinder head by pin, it is corresponding with uvula piece position that cylinder head body inner side is respectively equipped with four baffle plates, between baffle plate and uvula piece, is connected by two springs, and uvula piece bottom is fixed with connecting rod.
Described upper location-plate is provided with 2 top offset measuring transducers, and lower location-plate is provided with 2 bottom offset measuring transducers.
Between described baffle plate and uvula piece, be provided with space, the length in space is greater than uvula piece protruded length.
Described baffle plate is provided with circular hole, and connecting rod runs through circular hole.
The center line of described uvula piece and baffle plate is positioned at same level.
Described upper location-plate is annular slab, and internal diameter is greater than the external diameter of oil cylinder.
Described spring is extended state.
Operating principle of the present utility model is:
Self-balancing test: while starting to test, oil pump is bought oil to load box from oil inlet pipe, oil cylinder is pressurizeed, oil cylinder masthead promotes joint stake to move down to lower location-plate, excessive pressure disconnects four pins of fixing uvula piece, and meanwhile, lower location-plate continues to promote lower joint pile body and moves, the sensor on ground is passed in the displacement of lower joint stake by bottom offset measuring transducer, the bottom offset of realizing in self-balancing test detects; Because uvula piece has not had the constraint of pin, spring can pull uvula piece to cylinder head body internal activity, contact the cylinder rod stretching out and just can stop when being fixed on link rob on uvula piece, uvula piece can not slided in cylinder head body losing after fixing, and then lose the counter-force of location-plate; Uvula piece just can keep off below lower location-plate like this, load box is passed on upper location-plate by uvula piece the lower location-plate counter-force being subject to of pressurizeing, and then the upper pipe joint stake of promotion moves up, by the top offset measuring transducer connecting on upper location-plate, displacement is delivered on the sensor on ground, realizes the top pile tube test of self-balancing test.
Recycle: after having tested, original flowline is used as to oil inlet pipe and pressurizes, oil inlet pipe is originally used as flowline and is carried out oil return, and oil cylinder is oppositely pressurizeed, and cylinder rod can shrink.In the time that cylinder rod is regained completely, make originally to withstand on connecting rod on cylinder rod and lose dependence and just continue to reclaim under spring tension effect, until uvula piece enters in cylinder head body completely.There is no the constraint of uvula piece, cylinder head body can propose from upper location-plate, by the lifting rope being arranged on before on cylinder body, oil cylinder is proposed to ground, realizes recycling of oil cylinder.
The beneficial effects of the utility model are:
1, bearing capacity is large, and this load box internal diameter almost approximates the internal diameter of pile tube, and what make oil cylinder can be done is enough large, and then has increased the tonnage demand of jack, meets the bearing capacity of test;
2, easy and simple to handle, load box only need pack into cylinder body in pipe joint stake in the process of installing, afterwards by upper and lower two location-plates and upper and lower two joint stake firm welding, can drive piles, when load box proposition after test completes, only the inlet and outlet of fuel channel of two oil pipes before need be exchanged oppositely and pressurizeed, just load box can be proposed afterwards, do not need to carry out complex operations, easy and simple to handle;
3, good economy performance, this load box reusable edible, relies on inner special device uvula piece, can oil cylinder be proposed in stake completing after test, only has two original location-plates to stay in pile body, has therefore saved very large financial cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A face sectional drawing of the present utility model;
Fig. 3 is scheme of installation of the present utility model.
Wherein, 1, oil cylinder, 2, cylinder rod, 3, upper location-plate, 4, lower location-plate, 5, cylinder head body, 6, uvula piece, 7, pin; 8, baffle plate; 9, spring; 10, connecting rod; 11, oil inlet pipe; 12, flowline; 13, top offset measuring transducer; 14, bottom offset measuring transducer; 15, ground transaucer; 16, oil pump.
The specific embodiment:
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, a kind of PHC pile tube self-balance test recovery type jack, comprises laterally zygomorphic two location-plates, and upper location-plate 3 welds with the upper joint of test pile tube, lower location-plate 4 and the lower joint welding of testing pile tube; Outside oil cylinder 1 is placed in the cavity of joint test pile tube, oil cylinder 1 upside down, oil cylinder head runs through location-plate 3, between upper and lower location-plate 4, cylinder head body 5 is arranged on oil cylinder head, and the uvula piece 6 of 4 same configuration is uniformly distributed along oil cylinder head, and be fixed on cylinder head body 5 outsides by pin 7, it is corresponding with uvula piece 6 positions that cylinder head body 5 inner sides are respectively equipped with four baffle plates 8, between baffle plate 8 and uvula piece 6, is connected by spring 9, and uvula piece 6 bottoms are fixed with connecting rod 10.
Upper location-plate 3 is provided with 2 top offset measuring transducers 13, and lower location-plate 4 is provided with 2 bottom offset measuring transducers 14.
Between baffle plate 8 and uvula piece 6, be provided with space, the length in space is greater than uvula piece 6 protruded lengths.
Baffle plate 8 is provided with circular hole, and connecting rod 10 runs through circular hole.
The center line of uvula piece 6 and baffle plate 8 is positioned at same level.
Upper location-plate 3 is annular slab, and internal diameter is greater than the external diameter of oil cylinder 1.
Operating principle of the present utility model is:
As shown in Figure 3, in the time starting to test, oil pump 16 is bought oil to load box from oil inlet pipe 11, cylinder rod 2 starts to extend top to lower location-plate 4 under pressure, pressure continues to increase, under connecting, the pin 7 of location-plate 4 is drawn out, and promotes the lower pile body that saves move with location-plate 4 continuation at present, and the displacement of the lower location-plate sensor 15 that the lower displacement that saves stake is passed to ground by bottom offset transfer device 14 is realized bottom offset detection in self-balancing test.There is no constraint because the pull-out of pin 7 makes uvula piece 6, under the pulling force effect of little spring 9, to the interior movement of cylinder head body 5, the connecting rod 10 that still connects uvula piece 6 has been encountered its continuation movement of cylinder rod 2 preventions of stretching out.Uvula piece just can keep off below lower location-plate like this, make load box pass on upper location-plate 3 by the constraint of uvula piece 6 and then promote upper pipe joint stake and move up the pressurize counter-force received of lower location-plate 4, by the 3 top offset transfer devices 13 that connect on upper location-plate, displacement is delivered on the sensor 15 on ground, realizes the top pile tube test of self-balancing test.
After test completes, change flowline 12 into oil inlet pipe, oil inlet pipe 11 before changes flowline into and carries out oiling by oil pump 16, cylinder rod 2 reclaims so under pressure, the connecting rod 10 before withstanding on cylinder rod 2 just can lose and stop, makes uvula piece 6 under the pulling force effect of spring 9, be pulled to cylinder head body 5 inside.Cylinder head body just can propose from upper location-plate is inner like this, realizes recycling of oil cylinder.
This load box arranges four of displacement transducers altogether, comprises 13 and 2 bottom offset measuring transducers 14 of 2 top offset measuring transducers.Top offset transmits sensor 13 and is welded on location-plate 3, and bottom offset transmits sensor 14 and is welded on lower location-plate 4 and by passing in the reserved aperture of upper location-plate 3.Transmit and on sensor 14, be fixed with wire rope and pass earth's surface from pile tube inside and be connected to image data ground transaucer 15 in upper and lower displacement.On ground, have oil pump 16 after on-test to oiling in load box, oil pipe is divided into oil inlet pipe 11 and 12 two of flowlines.
The mounting method of this load box is: the equalization point position of calculating load box according to test situation, produce the pile tube of appropriate length, the top of saving under the lower location-plate of load box 4 and pile tube is welding as one, the upper location-plate 3 that saves hypomere and load box on pile tube is welding as one, and displacement line is fixed on displacement measurement sensor and from pile tube inside, to pass earth's surface and be connected with ground transaucer 15 in this process.Afterwards stake is driven underground, carries out experimental test meet stop time of the soil body according to code requirement after.
When on-test, oil inlet pipe 11 is installed on the oil-out of oil pump 16, waits starter motor after the installation of all appts equipment, oil pump is driven into oil in the oil cylinder with chancellor from oil inlet pipe 11, can load according to the loading grade of test determination.In loading procedure, read the upper and lower displacement data receiving on ground transaucer, be used in the analysis on pile capacity.
Carry out release Deng loading procedure after completing, original oil inlet pipe 11 is used as to flowline, and connects original flowline 12 as oil inlet pipe, carry out release after changing the oil circuit of oil pump.The final stage of release should make pressure meter occur reading, proves that cylinder rod has reclaimed complete piston and pushed up oil cylinder top, at this moment can stop release.Cylinder rod reclaims and completely shows that 4 uvula pieces can be recovered in cylinder head body completely, and oil cylinder is proposed ground by available wire rope of fastening on oil cylinder before, realizes recycling of load box.
By reference to the accompanying drawings the specific embodiment of the present utility model is described although above-mentioned; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (7)
1. a PHC pile tube self-balance test recovery type jack, is characterized in that: comprise laterally zygomorphic two location-plates: upper location-plate and lower location-plate, and upper location-plate welds with the upper joint of test pile tube, the lower joint welding of lower location-plate and test pile tube; Outside oil cylinder is placed in the cavity of joint test pile tube, oil cylinder upside down, oil cylinder head runs through location-plate, between upper and lower location-plate, cylinder head body is arranged on oil cylinder head, and the uvula piece of 4 same configuration is uniformly distributed along oil cylinder head, and be fixed on the external side of cylinder head by pin, it is corresponding with uvula piece position that cylinder head body inner side is respectively equipped with four baffle plates, between baffle plate and uvula piece, is connected by two springs, and uvula piece bottom is fixed with connecting rod.
2. a kind of PHC pile tube self-balance test recovery type jack as claimed in claim 1, is characterized in that: described upper location-plate is provided with 2 top offset measuring transducers, and lower location-plate is provided with 2 bottom offset measuring transducers.
3. a kind of PHC pile tube self-balance test recovery type jack as claimed in claim 1, is characterized in that: between described baffle plate and uvula piece, be provided with space, the length in space is greater than uvula piece protruded length.
4. a kind of PHC pile tube self-balance test recovery type jack as claimed in claim 1, is characterized in that: described baffle plate is provided with circular hole, and connecting rod runs through circular hole.
5. a kind of PHC pile tube self-balance test recovery type jack as claimed in claim 1, is characterized in that: the center line of described uvula piece and baffle plate is positioned at same level.
6. a kind of PHC pile tube self-balance test recovery type jack as claimed in claim 1, is characterized in that: described upper location-plate is annular slab, and internal diameter is greater than the external diameter of oil cylinder.
7. a kind of PHC pile tube self-balance test recovery type jack as claimed in claim 1, is characterized in that: described spring is extended state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009805.8U CN203654334U (en) | 2014-01-08 | 2014-01-08 | Recycled jack for PHC tubular pile self-balance method test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009805.8U CN203654334U (en) | 2014-01-08 | 2014-01-08 | Recycled jack for PHC tubular pile self-balance method test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203654334U true CN203654334U (en) | 2014-06-18 |
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ID=50920741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420009805.8U Expired - Fee Related CN203654334U (en) | 2014-01-08 | 2014-01-08 | Recycled jack for PHC tubular pile self-balance method test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203654334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735378A (en) * | 2016-04-11 | 2016-07-06 | 湖北工业大学 | Reverse self-balancing method for pile foundation vertical bearing capacity test and test device |
-
2014
- 2014-01-08 CN CN201420009805.8U patent/CN203654334U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735378A (en) * | 2016-04-11 | 2016-07-06 | 湖北工业大学 | Reverse self-balancing method for pile foundation vertical bearing capacity test and test device |
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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: 20140618 Termination date: 20190108 |