CN108086368B - Static load test self-unloading counterforce device - Google Patents
Static load test self-unloading counterforce device Download PDFInfo
- Publication number
- CN108086368B CN108086368B CN201810113282.4A CN201810113282A CN108086368B CN 108086368 B CN108086368 B CN 108086368B CN 201810113282 A CN201810113282 A CN 201810113282A CN 108086368 B CN108086368 B CN 108086368B
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- CN
- China
- Prior art keywords
- crossbeam
- slot position
- side girder
- clamp
- notch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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 present invention provides a kind of static load test self-unloading counterforce devices, by left side girder, crossbeam slot position, clamp moves slot position, right side girder, crossbeam, perpendicular baffle, cover board, hook plate, plastic film, front end, notch one, hinge axis hole one, main tie, clamp slot position, notch two, hinge axis hole two, lever, hinged shaft one, drag link, clamp, shelves tooth, soil, hinged shaft two forms, static load test self-unloading counterforce device of the invention, structure is simple, assembly, convenient disassembly, use cost is cheap, it gathers materials on the spot, directly make preloading using the soil body that excavation is tested pits, and preloading is directly dropped back into and is tested pits after the test, reduce process, save working hour, reduce labor intensity, save the cost.
Description
Technical field
The invention belongs to technical field of civil engineering, specifically a kind of static load test self-unloading counterforce device.
Background technique
Static load test be it is current examine pile foundation, composite foundation, natural foundation bearing capacity various methods in it is most widely used
One kind, and it is most accurate, most reliable to be acknowledged as test result, is put into various countries' ground, pile foundation engineering specification or regulation；It should
Research technique utilizes the actual working state of the artificial loading of various methods, ground foundation simulation or basis, tests load after its load
Energy and deformation behaviour；Its significant advantage is that stress condition is relatively practical, easy to use, test result it is intuitive and be easy to for
It is appreciated that and receiving；But experimental scale and expense are relatively large, wherein counterforce device expense occupies larger specific gravity；Commonly
Counterforce device is preloading counterforce device, and preloading counterforce device is exactly to use girder steel that a bearing platform is arranged, and is accumulated on bearing platform
Weight, weight usually have steel ingot, girder steel, reinforced beam；Steel ingot, girder steel, reinforced beam need to be stored in warehouse, make
Used time is transported to construction site by machinery, transports warehouse back again after the test, and production and transportation cost are higher.
Summary of the invention
In order to solve the above technical problems existing in the prior art, the present invention provides a kind of static load test self-unloadings
Counterforce device, by left side girder, crossbeam slot position, the mobile slot position of clamp, right side girder, crossbeam, perpendicular baffle, cover board, hook plate, modeling
Expect film, front end, notch one, hinge axis hole one, main tie, clamp slot position, notch two, hinge axis hole two, lever, hinged shaft one, cross
Pull rod, clamp, shelves tooth, soil, hinged shaft two form, and the left side girder is identical as right side main beam structure, arranged symmetrically；Crossbeam
Both ends overlap respectively to be arranged at left side girder slot position corresponding with right side girder, and cover board both ends overlap respectively is arranged in the perpendicular of crossbeam
On the inside of baffle and on the shelves tooth of adjacent beams stretching；After whole cover boards are installed, covering plastic thin film is on the cover board；Left side master
It is provided with main tie in beam and right side girder, is provided with drag link in crossbeam；Shelves tooth is fixed on drag link, crossbeam side
Offer the aperture for stretching out, retracting for shelves tooth.
Further, the mobile slot position of crossbeam slot position, clamp is offered on the left side girder), crossbeam slot position width with
Beam width is identical, and clamp shifting chute bit width is equal to shelves tine length；Perpendicular baffle is integrated with crossbeam fixed setting；Hook plate and lid
Plate fixed setting.
Further, the left side girder and right side girder front end are fixedly installed front end, offer on front end
Notch one, hinge axis hole one.
Further, clamp slot position is offered on the main tie, clamp slot position width is equal to clamp width, main tie
Front end offers notch two, hinge axis hole two.
Further, the lever is hinged by hinged shaft one and front end, and lever is hinged by hinged shaft two and main tie.
The invention has the advantages that structure is simple, assembly, convenient disassembly, production, use cost are cheap, gather materials on the spot,
Directly make preloading using excavating the soil body tested pits, and preloading is directly dropped back into and tested pits after the test, is reduced process, is saved working hour,
Reduce labor intensity, save the cost.
Detailed description of the invention
Fig. 1 is static load test self-unloading counterforce device working condition diagrammatic cross-section；
Fig. 2 be the device girder, crossbeam, cover plate combination at heap carrying platform schematic diagram；
Fig. 3 is the girder schematic diagram of the device；
Fig. 4 is the main tie schematic diagram of the device；
Fig. 5 is the girder and main tie relation schematic diagram of the device；
Fig. 6 is the girder, main tie and lever relationshhip schematic diagram of the device；
Fig. 7 is the shelves tooth retracted mode crossbeam schematic cross-sectional view of the device；
Fig. 8 is A-A diagrammatic cross-section；
Fig. 9 is that the shelves tooth of the device stretches out state crossbeam schematic cross-sectional view；
Figure 10 is B-B diagrammatic cross-section；
Figure 11 is the shelves tooth retracted mode crossbeam and drag link position view of the device；
Figure 12 is that the shelves tooth of the device stretches out state crossbeam and drag link position view；
Figure 13 is the drag link and shelves tooth relation schematic diagram of the device；
Figure 14 is the cover plate schematic diagram of the device；
Figure 15 is the shelves tooth stretching of the device, cover board working state schematic representation；
Figure 16 is that the shelves tooth of the device retracts, the cover board overturning soil body falls into schematic diagram of testing pits；
Figure 17 is the girder and crossbeam bonding relation schematic diagram of the device；
Figure 18 is the main tie and crossbeam bonding relation schematic diagram of the device；
Figure 19 is the girder, main tie and crossbeam bonding relation schematic diagram of the device.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in figures 1-19, static load test self-unloading counterforce device of the invention, by left side girder 1, crossbeam slot position
101, the mobile slot position 102 of clamp, right side girder 2, crossbeam 3, perpendicular baffle 301, cover board 4, hook plate 401, plastic film 5, front end
6, notch 1, hinge axis hole 1, main tie 7, clamp slot position 701, notch 2 702, hinge axis hole 2 703, lever 8, hinged shaft
One 9, drag link 10, clamp 1001, shelves tooth 11, soil 12, hinged shaft 2 13 form, the left side girder 1 and 2 structure of right side girder
Identical, arranged symmetrically, 3 both ends of crossbeam overlap respectively to be arranged at the slot position corresponding with right side girder 2 of left side girder 1,4 both ends of cover board
On the shelves tooth 11 that 301 inside of perpendicular baffle of crossbeam 3 is arranged in overlap joint respectively and adjacent beams 3 are stretched out, whole cover boards 4 are installed
Afterwards, plastic film 5 is laid on cover board 4, and when test can stop the soil body to fall into from gap to test pits, will not hinder soil after the test
Body, which is fallen into, tests pits, and is provided with main tie 7 in left side girder 1 and right side girder 2, and drag link 10 is provided in crossbeam 3, and shelves tooth 11 is solid
Fixed to be arranged on drag link 10,3 side of crossbeam offers the aperture for stretching out, retracting for shelves tooth 11.
Offer the mobile slot position 102 of crossbeam slot position 101, clamp on the left side girder 1,101 width of crossbeam slot position with
Crossbeam 3 is of same size, and mobile 102 width of slot position of clamp is equal to 11 length of shelves tooth；Perpendicular baffle 301 is fixedly installed with crossbeam 3；Hook plate
401 are fixedly installed with cover board 4；The left side girder 1 and 2 front end of right side girder is fixedly installed front end 6, front end 6
On offer notch 1, hinge axis hole 1.
Clamp slot position 701 is offered on the main tie 7,701 width of clamp slot position is equal to 1001 width of clamp, main drawing
7 front end of bar offers notch 2 702, hinge axis hole 2 703；Lever 8 is hinged by hinged shaft 1 and front end 6, and lever 8 passes through hinge
Axis 2 13 and main tie 7 are hinged；Embodiment is only a kind of mode using the mobile main tie 7 of lever 8, uses the other modes such as lead screw
Mobile main tie 7 is fallen in the scope of this patent.
Static load test self-unloading counterforce device application method of the present invention are as follows: excavate and test pits on test point ground, trying
It cheats two sides and is laid with left side girder and right side girder, place main tie in left side girder and right side girder, it can also be on girder
Block is welded in face, then lever, main tie, girder are combined by hinged shaft one, hinged shaft two, sets up crossbeam, sets up cover board,
It is laid with plastic film, preloading platform is formed, and it will excavate the soil body dug out of testing pits and be deposited on heap carrying platform, static load test self-unloading
Counterforce device is carried to install；In interior carry out static load test of testing pits, after the test, moves lever, is pulled outwardly main tie
It moves, in the Forward of driving drag link, shelves tooth retraction crossbeam, cover forward end loses support overturning, and rear end hook plate catches on perpendicular baffle, preloading
The soil body, which is fallen into, tests pits, and taking out all cover boards, taking-up crossbeam, left side girder and right side girder, work terminates；The invention takes on the spot
Material directly makees preloading using the soil body that excavation is tested pits, eliminates production, the transportation cost of traditional preloading, and heap after the test
Load, which directly drops back into, tests pits, and reduces process, saves working hour, reduces labor intensity, save the cost；If only replacing tradition with the soil body
Preloading, after the test there is still a need for again again backfilling the soil body into testing pits after removing the soil body, provision for disengagement, process is more, labour is strong
Degree is big, cannot reach beneficial effects of the present invention；When encountering the case where needing larger counter-force, knitting bagged soil can be used and put
In heap carrying platform surrounding, preloading height is improved, realizes and the purpose of larger counter-force is provided.
Claims (1)
1. a kind of static load test self-unloading counterforce device, by left side girder (1), crossbeam slot position (101), the mobile slot position of clamp
(102), right side girder (2), crossbeam (3), perpendicular baffle (301), cover board (4), hook plate (401), plastic film (5), front end
(6), notch one (601), hinge axis hole one (602), main tie (7), clamp slot position (701), notch two (702), hinge axis hole two
(703), lever (8), hinged shaft one (9), drag link (10), clamp (1001), shelves tooth (11), native (12), hinged shaft two (13) composition,
It is characterized by: the left side girder (1) is identical as right side girder (2) structure, arranged symmetrically, crossbeam (3) both ends are taken respectively
It connects and is arranged at left side girder (1) slot position corresponding with right side girder (2), cover board (4) both ends overlap respectively to be arranged in crossbeam (3)
Perpendicular baffle (301) on the inside of and adjacent beams (3) stretch out shelves tooth (11) on, after whole cover boards (4) are installed, plastic film
(5) it is laid on cover board (4), is provided with main tie (7) in left side girder (1) and right side girder (2), is provided in crossbeam (3)
Drag link (10), shelves tooth (11) are fixed on drag link (10), and crossbeam (3) side, which is offered, to be stretched out for shelves tooth (11), contracts
The aperture returned；It is mobile slot position (102) that crossbeam slot position (101), clamp are offered on the left side girder (1), crossbeam slot position
(101) width and crossbeam (3) are of same size, and mobile slot position (102) width of clamp is equal to shelves tooth (11) length；Perpendicular baffle (301)
It is fixedly installed with crossbeam (3)；Hook plate (401) and cover board (4) are fixedly installed；Left side girder (1) and right side girder (2) front end are equal
It is fixedly installed front end (6), notch one (601), hinge axis hole one (602) is offered on front end (6)；The main tie
(7) it is offered on clamp slot position (701), clamp slot position (701) width is equal to clamp (1001) width, and main tie (7) front end is opened
Equipped with notch two (702), hinge axis hole two (703)；The lever (8) passes through hinged shaft one (9) and front end (6) hingedly, lever
(8) hinged by hinged shaft two (13) and main tie (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113282.4A CN108086368B (en) | 2018-02-05 | 2018-02-05 | Static load test self-unloading counterforce device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113282.4A CN108086368B (en) | 2018-02-05 | 2018-02-05 | Static load test self-unloading counterforce device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108086368A CN108086368A (en) | 2018-05-29 |
| CN108086368B true CN108086368B (en) | 2019-09-03 |
Family
ID=62193801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810113282.4A Expired - Fee Related CN108086368B (en) | 2018-02-05 | 2018-02-05 | Static load test self-unloading counterforce device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108086368B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5099696A (en) * | 1988-12-29 | 1992-03-31 | Takechi Engineering Co., Ltd. | Methods of determining capability and quality of foundation piles and of designing foundation piles, apparatus for measuring ground characteristics, method of making hole for foundation pile such as cast-in-situ pile and apparatus therefor |
| CN103046584B (en) * | 2013-01-28 | 2015-08-19 | 中国电建集团西北勘测设计研究院有限公司 | Blower foundation pile casing type cast-in-place concrete pile vertically pulling-resistant bearing capacity test pile structure |
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2018
- 2018-02-05 CN CN201810113282.4A patent/CN108086368B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN108086368A (en) | 2018-05-29 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |