CN107178101A - Self-balancing approach annular load box - Google Patents
Self-balancing approach annular load box Download PDFInfo
- Publication number
- CN107178101A CN107178101A CN201710405590.XA CN201710405590A CN107178101A CN 107178101 A CN107178101 A CN 107178101A CN 201710405590 A CN201710405590 A CN 201710405590A CN 107178101 A CN107178101 A CN 107178101A
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- Prior art keywords
- annular
- plate
- ring
- shaped steel
- steel plate
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Classifications
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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
Abstract
The invention discloses a kind of self-balancing approach annular load box, including upper doughnut-shaped steel plate, lower doughnut-shaped steel plate, outer ring baffle, annular baffle plate and pressure apparatus, pressure apparatus includes several annular oil cavity expansion cells, overlap and be interconnected above and below annular oil cavity expansion cell, it can be connected positioned at the annular oil cavity expansion cell of the top and the connection of upper doughnut-shaped steel plate and with hydraulic loading device, the annular oil cavity expansion cell positioned at bottom is connected with lower doughnut-shaped steel plate；Outer annular filled cavity is formed between upper doughnut-shaped steel plate, lower doughnut-shaped steel plate, outer ring baffle and pressure apparatus, annular filled cavity is formed between upper doughnut-shaped steel plate, lower doughnut-shaped steel plate, annular baffle plate and pressure apparatus；Load box is additionally provided with grouting valve block, and grouting valve block has grouting port, tube chamber, grout outlet one and the grout outlet two of mutual conduction, and grout outlet one and grout outlet two are connected with outer annular filled cavity and annular filled cavity respectively.Effect is both to have saved cost, it is ensured that the stability of detection.
Description
Technical field
The present invention relates to a kind of self-balancing approach annular load box.
Background technology
Self-balanced test method is that a kind of foundation bearing capacity at home and abroad developing rapidly and promoting the use of in recent years is new
Measuring technology, it can efficiently solve the insoluble test pile such as waterborne of conventional test methods, long and narrow place test pile, major diameter
The engineering challenges such as deep-drawn cast-in-place pile loading test, and with the advantages of time saving, economy, advanced technology and blue or green by engineering circles
Look at.From unlike accumulation load method and anchored pile-testing method, loading device is arranged on foundation bottom or middle and lower part by self-balancing approach, on the basis of making
Portion and bottom counter force system each other, can not so be limited, and increase substantially test tonnage by place.It is real inside conventional load case
The heart, it is impossible to be directly used in open caisson self-balanced pile test, and due to open caisson enormous size, load box is usually prefabrication, for
For large scale load box, transport is again as another problem.
In the prior art, Publication No. CN103147465A patent document discloses a kind of open caisson self-balancing approach that is used for and surveyed
The load box of examination, its technical scheme is described：The hydraulic oil being sequentially connected including load casing, hydraulic jack, with hydraulic jack
Pipe and hydraulic loading device；The load casing includes upper doughnut-shaped steel plate, lower doughnut-shaped steel plate, outer ring baffle, annular baffle plate,
Wherein, it is oppositely arranged above and below upper doughnut-shaped steel plate and lower doughnut-shaped steel plate, annular baffle plate and outer ring baffle are respectively provided at annular
The inner side and periphery of steel plate and lower doughnut-shaped steel plate, and closed casing is constituted with upper doughnut-shaped steel plate and lower doughnut-shaped steel plate, work as hydraulic pressure
When oil cylinder is preloaded, upper doughnut-shaped steel plate and lower doughnut-shaped steel plate can be moved up and down each；The hydraulic jack is located in load box body,
The bottom of hydraulic jack is connected on lower doughnut-shaped steel plate, and the piston of hydraulic jack is contacted with upper doughnut-shaped steel plate；It is described to be used for open caisson
The load box of self-balancing approach test also includes the displacement transfer device for being used for testing doughnut-shaped steel plate and lower doughnut-shaped steel plate displacement.This
Invention has reliability, practicality and economy.But in the technical scheme, appoint and so there is defect：1st, the significant surface of oil cylinder
Product is small, and load box operating pressure is higher in the case of same bearer power, and the pressure of contact surface is more than or close strong concrete at that time
When spending, the concrete disintegrating of contact surface is easily caused, false displacement is produced；2nd, the technical scheme overall height is higher, detection
Complete grouting behind shaft or drift lining space big, slip casting effect is unstable.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of self-balancing approach annular load box.
To achieve the above object, the invention provides following technical scheme：
A kind of self-balancing approach annular load box, including upper doughnut-shaped steel plate, lower doughnut-shaped steel plate, outer ring baffle, annular baffle plate
And pressure apparatus, the pressure apparatus includes several annular oil cavity expansion cells, above and below several annular oil cavity expansion cells
Overlap and be interconnected, the upper surface positioned at the annular oil cavity expansion cell of the top is connected with the lower surface of upper doughnut-shaped steel plate,
And can be connected with hydraulic loading device, positioned at the upper table of the lower surface and lower doughnut-shaped steel plate of the annular oil cavity expansion cell of bottom
Face is connected；Outer annular filled cavity, upper annular are formed between upper doughnut-shaped steel plate, lower doughnut-shaped steel plate, outer ring baffle and pressure apparatus
Annular filled cavity is formed between steel plate, lower doughnut-shaped steel plate, annular baffle plate and pressure apparatus；Also set on the annular load box
There is grouting valve block, the grouting valve block has grouting port, tube chamber, grout outlet one and the grout outlet two of mutual conduction, the pulp
Mouth one and grout outlet two are connected with outer annular filled cavity and annular filled cavity respectively；Upper doughnut-shaped steel plate, lower doughnut-shaped steel plate, outer shroud
Shape baffle plate, annular baffle plate, several annular oil cavity expansion cells are coaxially disposed.
By above-mentioned technical proposal, pressure apparatus is directly formed by stacking by multiple annular oiling expansion cells, is eliminated existing
There are the step of needing to set multiple oil cylinders in technology and cost；Annular oiling expansion cell and upper doughnut-shaped steel plate and lower doughnut-shaped steel plate
Between for ring surface contact, and to be coaxially disposed, on the one hand, so that annular oiling expansion cell and upper doughnut-shaped steel plate and lower annular
Contact area between steel plate is effectively increased, and improves the overall bearing capacity of load box, on the other hand so that upper doughnut-shaped steel plate
Stress with lower doughnut-shaped steel plate is more uniform, it is to avoid local pressure is higher, by the situation of the concrete disintegrating of contact surface, so that
Avoid the generation of false displacement；Substituted using annular oiling expansion cell after hydraulic jack, it is possible to decrease displacement height, reduce note
Space is starched, to increase the stability of slip casting；, can inside ring packing chamber by grouting valve block after the completion of the test of annular load box
Slurry is passed through with outer annular packing cavity so that the slurry merges solidification with the slurry outside annular load box, so playing more
For stable effect.
It is preferred that, each described annular oil cavity expansion cell includes upper ring-type fixing plate, lower ring-type fixing plate, outer ring
And inner ring, the upper ring-type fixing plate and lower ring-type fixing plate offer looping pit, and shape can occur for the outer ring and inner ring
Become and section is U-shaped, be oppositely arranged above and below the upper ring-type fixing plate and lower ring-type fixing plate, the outer ring is connected to ring
The outside of shape fixed plate and lower ring-type fixing plate, the inner ring is connected to the inner side of ring-type fixing plate and lower ring-type fixing plate,
The upper ring-type fixing plate, lower ring-type fixing plate, outer ring and inner ring are coaxially disposed, and form oil-filled chamber each other.
It is preferred that, the outer ring and inner ring include upper annular connecting plate, lower annular connecting plate and arc deformation plate, described
The both sides of arc deformation plate are connected to the side of annular connecting plate and lower annular connecting plate, the upper annular connecting plate
Lower surface is welded in the upper surface of ring-type fixing plate, and the upper surface of the lower annular connecting plate is welded in lower ring-type fixing plate
Upper surface.
It is preferred that, in addition to the annular filling oil cover plate with oil filler point, the annular filling oil cover plate accepts neighbouring
Two annular oil cavity expansion cells.
It is preferred that, the section of the annular filling oil cover plate is stepped and is divided into upper ring plate and lower ring plate, the lower ring plate
Upper surface and be connected with the lower surface of lower ring-type fixing plate in the annular oil cavity expansion cell of its top linking, the lower ring plate
Lower surface and be connected with the upper surface of upper ring-type fixing plate in the annular oil cavity expansion cell being connected below, the upper ring plate
Into in the annular oil cavity expansion cell being connected with its top in the looping pit of lower ring-type fixing plate.
By above-mentioned technical proposal, not only cost is low for the pressure apparatus that said structure is formed, and can also be to upper annular
Steel plate and lower doughnut-shaped steel plate play more stable support effect；Upper ring-type fixing plate in each annular oiling expansion cell,
The setting of lower ring-type fixing plate, annular filling oil cover plate, is effectively guaranteed whole annular oiling expansion cell and by multiple annulars
The overall construction intensity of the pressure unit of oil injection expanding unit composition, makes it to occur axial expansion displacement, inner ring and outer
The arc deformation plate of circle ensure that each annular oiling expansion cell is respectively provided with the space of expansion.
It is preferred that, in addition to top offset pipe and bottom offset pipe, the top offset pipe are connected to the upper surface of doughnut-shaped steel plate,
The bottom offset pipe is connected on lower doughnut-shaped steel plate through upper doughnut-shaped steel plate.
It is preferred that, it is respectively equipped with protective case and lower protective case on the top offset pipe and bottom offset pipe.
By above-mentioned technical proposal, can effectively it be detected by top offset pipe and bottom offset pipe, in the feelings of on-load pressure
Under condition, the displacement of upper ring-type fixing plate and lower ring-type fixing plate；The setting of upper protective case and lower protective case, can be to top offset pipe
The effect of being effectively protected is played with bottom offset pipe, prevents top offset pipe and bottom offset Guan Yuliang from expecting the situation of solidification.
It is preferred that, the upper surface of the upper doughnut-shaped steel plate is provided with suspension ring.
By above-mentioned technical proposal, it can easily be sling by the suspension ring, be easily installed, transport.
It is preferred that, the grouting port, which is provided with Grouting Pipe, the Grouting Pipe, is provided with plug.
By above-mentioned technical proposal, by the convenient connection with extraneous part of Grouting Pipe, plug can play sealing protection
Effect, prevents debris from entering in annular slip casting cover plate；When need not in use, Grouting Pipe can be blocked, when it is desired to be used
It can be drawn off, connect connecting tube.
Brief description of the drawings
Fig. 1 is the sectional view of the annular load box of self-balancing approach of the present invention；
Fig. 2 is the top view of the annular load box of self-balancing approach of the present invention；
Fig. 3 is the sectional view of bottom offset pipe in the present invention；
Fig. 4 is A portions enlarged drawing in Fig. 1.
Embodiment
Self-balancing approach of the present invention is further described with annular load box by Fig. 1 to Fig. 4.
A kind of self-balancing approach annular load box, including upper doughnut-shaped steel plate 1, lower doughnut-shaped steel plate 2, outer ring baffle 4, inner ring
Shape baffle plate 5 and pressure apparatus 3.Upper doughnut-shaped steel plate 1 and lower doughnut-shaped steel plate are oppositely arranged about 2, and center position is offered
Centre bore, so that Grouting Pipe 11 is passed through.Outer ring baffle 4 is connected to the outward flange position of doughnut-shaped steel plate 1 and lower doughnut-shaped steel plate 2
Place, annular baffle plate 5 is connected at the inward flange position of doughnut-shaped steel plate 1 and lower doughnut-shaped steel plate 2, i.e., at central hole location, this
Place it should be noted that, be between the lower surface of the upper end of outer ring baffle 4, the upper end of annular baffle plate 5 and upper doughnut-shaped steel plate 1
It is spot welding, institute between full welding, the upper surface of the lower end of outer ring baffle 4, the lower end of annular baffle plate 5 and lower doughnut-shaped steel plate 2
When 3 pressurized expansion of pressure apparatus, to be disconnected at spot welding.The pressure apparatus 3 includes several annular oil cavity expansion cells,
There is overlapping and interconnected, the annular oil positioned at the top above and below four, several annular oil cavity expansion cells in the present invention
The upper surface of chamber expansion cell and the lower surface of upper doughnut-shaped steel plate 1 are welded, and can be connected with hydraulic loading device, positioned at bottom
The upper surface of lower surface and lower doughnut-shaped steel plate 2 of annular oil cavity expansion cell weld；Upper doughnut-shaped steel plate 1, lower doughnut-shaped steel plate 2,
Outer annular filled cavity 13, upper doughnut-shaped steel plate 1, lower doughnut-shaped steel plate 2, annular gear are formed between outer ring baffle 4 and pressure apparatus 3
Annular filled cavity 14 is formed between plate 5 and pressure apparatus 3；Grouting valve block 6, the slip casting are also welded on the annular load box
Valve block 6 has grouting port 64, tube chamber 61, grout outlet 1 and the grout outlet 2 62 of mutual conduction, the grout outlet 1 and goes out
Slurry mouth 2 62 is connected with outer annular filled cavity 13 and annular filled cavity 14 respectively；Upper doughnut-shaped steel plate 1, lower doughnut-shaped steel plate 2, outer shroud
Shape baffle plate 4, annular baffle plate 5, several annular oil cavity expansion cells are coaxially disposed.
Further, each described annular oil cavity expansion cell includes upper ring-type fixing plate 32, lower ring-type fixing plate
33rd, outer ring 35 and inner ring 31.Offer looping pit on the upper ring-type fixing plate 32 and lower ring-type fixing plate 33, looping pit with
Upper ring-type fixing plate 32 is coaxial.The outer ring 35 and inner ring 31 can be deformed upon and section is U-shaped, the U-shaped mouth of outer ring 35
Inwardly, outwardly, the upper ring-type fixing plate 32 and lower ring-type fixing plate are oppositely arranged the U-shaped mouth of inner ring 31 about 33, described outer
Circle 35 is connected to the outside of ring-type fixing plate 32 and lower ring-type fixing plate 33, and the inner ring 31 is connected to ring-type fixing plate 32
With the inner side of lower ring-type fixing plate 33, the upper ring-type fixing plate 32, lower ring-type fixing plate 33, outer ring 35 and inner ring 31 are coaxially set
Put, and form oil-filled chamber each other.The outer ring 35 and inner ring 31 include upper annular connecting plate 311, lower annular connecting plate
312 and arc deformation plate 313, upper annular connecting plate 311, lower annular connecting plate 312 and arc deformation plate 313 are integrally formed, institute
The both sides for stating arc deformation plate 313 are connected to the side of annular connecting plate 311 and lower annular connecting plate 312, it is described on
The lower surface of annular connecting plate 311 is welded in the upper surface of ring-type fixing plate 32, the upper surface of the lower annular connecting plate 312
It is welded in the lower surface of lower ring-type fixing plate 33；Also include the annular filling oil cover plate 34 with oil filler point 341, the annular oiling
Cover plate 34 accepts two neighbouring annular oil cavity expansion cells of connection.The section of the annular filling oil cover plate 34 is stepped
And it is divided into upper ring plate 342 and lower ring plate 343, the upper surface of the lower ring plate 343 and the annular oil cavity expansion being connected with its top
The lower surface welding of lower ring-type fixing plate 33 in unit, the lower surface of the lower ring plate 343 and with the annular oil that is connected below
The upper surface welding of upper ring-type fixing plate 32 in chamber expansion cell, the upper ring plate 342 enters the annular oil being connected with its top
In chamber expansion cell in the looping pit of lower ring-type fixing plate 33, per adjacent one group on annular connecting plate 311 and lower annular connection
Plate 312 is respectively positioned on per between adjacent upper ring-type fixing plate 32 and lower ring-type fixing plate 33, is tied with increasing the overall of pressure apparatus 3
Structure intensity, upper ring-type fixing plate 32 and lower ring-type fixing plate 33 are steel plate；When rushing oil into oil pocket, arc deformation plate can be made
313 slowly stretch, so as to realize the axial displacement of whole pressure apparatus 3.
Further, in addition to top offset pipe 8 and bottom offset pipe 9, the top offset pipe 8 is welded in doughnut-shaped steel plate 1
Upper surface, the bottom offset pipe 9 is welded on lower doughnut-shaped steel plate 2 through upper doughnut-shaped steel plate 1.The top offset pipe 8 and bottom offset
Protective case and lower protective case 10 are respectively equipped with pipe 9.
Further, the upper surface of the upper doughnut-shaped steel plate 1 is provided with suspension ring 7.
Further, the grouting port 64, which is provided with Grouting Pipe 11, the Grouting Pipe 11, is provided with plug 12.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of self-balancing approach annular load box, including upper doughnut-shaped steel plate, lower doughnut-shaped steel plate, outer ring baffle, annular gear
Plate and pressure apparatus, it is characterized in that：The pressure apparatus includes several annular oil cavity expansion cells, and several annular oil cavities are swollen
Overlap and be interconnected above and below swollen unit, under the upper surface of the annular oil cavity expansion cell of the top and upper doughnut-shaped steel plate
Surface is connected, and can be connected with hydraulic loading device, positioned at the lower surface and lower annular of the annular oil cavity expansion cell of bottom
The upper surface connection of steel plate；Outer annular filling is formed between upper doughnut-shaped steel plate, lower doughnut-shaped steel plate, outer ring baffle and pressure apparatus
Chamber, forms annular filled cavity between upper doughnut-shaped steel plate, lower doughnut-shaped steel plate, annular baffle plate and pressure apparatus；The annular lotus
Carry and be additionally provided with grouting valve block on case, the grouting valve block has grouting port, tube chamber, grout outlet one and the grout outlet of mutual conduction
Two, the grout outlet one and grout outlet two are connected with outer annular filled cavity and annular filled cavity respectively；Upper doughnut-shaped steel plate, lower ring
Shape steel plate, outer ring baffle, annular baffle plate, several annular oil cavity expansion cells are coaxially disposed.
2. self-balancing approach according to claim 1 annular load box, it is characterized in that：Each described annular oil cavity expansion
Unit includes upper ring-type fixing plate, lower ring-type fixing plate, outer ring and inner ring, the upper ring-type fixing plate and lower ring-type fixing plate
Offer looping pit, the outer ring and inner ring can be deformed upon and section is U-shaped, the upper ring-type fixing plate and lower ring
It is oppositely arranged above and below shape fixed plate, the outer ring is connected to the outside of ring-type fixing plate and lower ring-type fixing plate, the inner ring
It is connected to the inner side of ring-type fixing plate and lower ring-type fixing plate, the upper ring-type fixing plate, lower ring-type fixing plate, outer ring and interior
Circle is coaxially disposed, and forms oil-filled chamber each other.
3. self-balancing approach according to claim 2 annular load box, it is characterized in that：The outer ring and inner ring include upper
Annular connecting plate, lower annular connecting plate and arc deformation plate, the both sides of the arc deformation plate are connected to annular connection
The side of plate and lower annular connecting plate, the lower surface of the upper annular connecting plate is welded in the upper surface of ring-type fixing plate, institute
The upper surface for stating lower annular connecting plate is welded in the upper surface of lower ring-type fixing plate.
4. self-balancing approach according to claim 3 annular load box, it is characterized in that：Also include the annular with oil filler point
Oiling cover plate, the annular filling oil cover plate accepts two neighbouring annular oil cavity expansion cells.
5. self-balancing approach according to claim 4 annular load box, it is characterized in that：The section of the annular filling oil cover plate
Stepped and be divided into upper ring plate and lower ring plate, the upper surface of the lower ring plate and the annular oil cavity expansion that be connected with its top are singly
The lower surface connection of lower ring-type fixing plate in member, the lower surface of the lower ring plate and expands single with the annular oil cavity being connected below
The upper surface connection of upper ring-type fixing plate in member, under the upper ring plate enters in the annular oil cavity expansion cell being connected with its top
In the looping pit of ring-type fixing plate.
6. self-balancing approach according to claim 1 annular load box, it is characterized in that：Also include top offset pipe and bottom offset
Pipe, the top offset pipe is connected to the upper surface of doughnut-shaped steel plate, and the bottom offset pipe is connected to lower ring through upper doughnut-shaped steel plate
On shape steel plate.
7. self-balancing approach according to claim 6 annular load box, it is characterized in that：The top offset pipe and bottom offset pipe
On be respectively equipped with protective case and lower protective case.
8. self-balancing approach according to claim 1 annular load box, it is characterized in that：The upper surface of the upper doughnut-shaped steel plate
It is provided with suspension ring.
9. self-balancing approach according to claim 1 annular load box, it is characterized in that：The grouting port is provided with slip casting
Plug is provided with pipe, the Grouting Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405590.XA CN107178101A (en) | 2017-06-01 | 2017-06-01 | Self-balancing approach annular load box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405590.XA CN107178101A (en) | 2017-06-01 | 2017-06-01 | Self-balancing approach annular load box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107178101A true CN107178101A (en) | 2017-09-19 |
Family
ID=59835907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710405590.XA Pending CN107178101A (en) | 2017-06-01 | 2017-06-01 | Self-balancing approach annular load box |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144899Y (en) * | 2008-01-10 | 2008-11-05 | 毛宇新 | Cavity type loading kit |
| CN102953400A (en) * | 2012-11-14 | 2013-03-06 | 东南大学 | Load box for self-balanced method testing of concrete pipe pile |
| CN103147465A (en) * | 2013-03-04 | 2013-06-12 | 东南大学 | Load box for testing open caisson with self-balancing method |
| CN105064424A (en) * | 2015-08-12 | 2015-11-18 | 浙江省建筑科学设计研究院有限公司 | Self-balancing load box testing structure and method for inclined steel pipe pile of bridge |
| CN206888031U (en) * | 2017-06-01 | 2018-01-16 | 浙江欧感机械制造有限公司 | The annular load box of self-balancing approach |
-
2017
- 2017-06-01 CN CN201710405590.XA patent/CN107178101A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144899Y (en) * | 2008-01-10 | 2008-11-05 | 毛宇新 | Cavity type loading kit |
| CN102953400A (en) * | 2012-11-14 | 2013-03-06 | 东南大学 | Load box for self-balanced method testing of concrete pipe pile |
| CN103147465A (en) * | 2013-03-04 | 2013-06-12 | 东南大学 | Load box for testing open caisson with self-balancing method |
| CN105064424A (en) * | 2015-08-12 | 2015-11-18 | 浙江省建筑科学设计研究院有限公司 | Self-balancing load box testing structure and method for inclined steel pipe pile of bridge |
| CN206888031U (en) * | 2017-06-01 | 2018-01-16 | 浙江欧感机械制造有限公司 | The annular load box of self-balancing approach |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170919 |
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| RJ01 | Rejection of invention patent application after publication |