CN205276334U - A spherical load box for self -balancing peg method - Google Patents
A spherical load box for self -balancing peg method Download PDFInfo
- Publication number
- CN205276334U CN205276334U CN201521138142.0U CN201521138142U CN205276334U CN 205276334 U CN205276334 U CN 205276334U CN 201521138142 U CN201521138142 U CN 201521138142U CN 205276334 U CN205276334 U CN 205276334U
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- cylinder
- cylinder body
- spherical
- hydro
- pneumatic cylinder
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 235000015041 whisky Nutrition 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 abstract 2
- 239000000446 fuel Substances 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a spherical load box for self -balancing peg method, includes the hydraulic jack array, the hydraulic jack array comprises the hydraulic jack who is the annular range, hydraulic jack includes on the pneumatic cylinder under cylinder body and the pneumatic cylinder on cylinder body and the pneumatic cylinder under cylinder body and the pneumatic cylinder sliding connection between the cylinder body, and the junction of cylinder body is equipped with the sealing washer under cylinder body and the pneumatic cylinder on the pneumatic cylinder, is equipped with the displacement meter on the pneumatic cylinder on the cylinder body, is equipped with time displacement meter under the pneumatic cylinder on the cylinder body, spherical load box still includes high pressure fuel pipe just high pressure fuel pipe and each hydraulic jack directly or indirectly communicate, the outer top of the cylinder body of cylinder body is spherical on the pneumatic cylinder, the outer bottom of the cylinder body of cylinder body is spherical under the pneumatic cylinder. The concrete is bursted and become muddy when a thaw sets in when pouring spherical load box position smoothly, and spherical hydraulic jack can evenly transmit the pile body concrete with the load simultaneously, and the maxmizing degree reduces and eliminates the test error.
Description
Technical field
The present invention relates to the deceleration loading device of detection of pier foundation plinth supporting capacity in pile foundation construction in a kind of civil construction project, particularly a kind of spherical load case adopting self-balancing approach to test.
Background technology
Compared with tradition static test, self-equilibrating static load peg method has test tonnage and greatly, is not subject to the advantages such as on-the-spot environmental constraints, cost are low, is widely used in the engineerings such as bridge construction, construction work, capital construction at present. Along with increasing of engineer applied and going deep into further of studying, find that self-equilibrating static load peg method often exists following technical problem: 1, the whisky jack of existing load case is right cylinder, its upper and lower two end faces are plane, and how cover plate is set on screw block, such concrete build upwards return slurry time, easily in the alluvial of screw block end face place, cause the concrete quality of load case upper/lower terminal poor. When self-balanced pile test, load is applied on the poor concrete of quality by screw block so that test bit moves past greatly, causes bigger test error. 2, the whisky jack of existing load case is right cylinder, in working process, the load applied is delivered to pile concrete by upper and lower two end faces of screw block, at screw block end face, easily there is stress concentration phenomenon in place, easily destroy pile foundation, make test bit move past greatly, cause test error equally. Therefore traditional load box formula is carried out novelty improvement by the present invention, and right cylinder load case is modified into spherical load case, makes load case and pile foundation contact surface be ball face, it is possible to effectively solve above two problems.
Summary of the invention
For the above problem that self-equilibrating static load peg method exists, the utility model proposes a kind of spherical load case for self-balance testing pile method, concrete is bursted and become muddy when a thaw sets in smooth and easy when being poured into spherical load cell position, load can be evenly delivered to pile concrete by spherical whisky jack simultaneously, reaches maximum degree and reduces and eliminate test error.
The utility model adopts following technical scheme:
A kind of spherical load case for self-balance testing pile method, comprise whisky jack array, described whisky jack array is made up of the whisky jack of circular array, described whisky jack comprises hydro-cylinder upper cylinder body and hydro-cylinder lower cylinder body and is slidably connected between hydro-cylinder upper cylinder body and hydro-cylinder lower cylinder body, it is provided with sealing-ring in the junction of hydro-cylinder upper cylinder body and hydro-cylinder lower cylinder body, hydro-cylinder upper cylinder body is provided with top offset meter, hydro-cylinder lower cylinder body is provided with bottom offset meter, described spherical load case also comprises high-pressure line and described high-pressure line is directly or indirectly connected with each whisky jack, the external top of cylinder of described hydro-cylinder upper cylinder body is spherical, the external bottom of cylinder of described hydro-cylinder lower cylinder body is spherical.
Compared with prior art, the utility model has following useful effect:
The spherical load case that the utility model proposes, whisky jack is spherical, and certainly approximate spheroid is equal to spherical, both function, acts on roughly the same, and namely approximate spheroid is the equivalent technologies feature that the utility model is spherical. In limited space, load case is changed into spheroid from right cylinder, it is possible to expanding the contact area of load case and pile foundation, whole spherical hydraulic jack top surface is all closely embedding with pile concrete to be wrapped up in, reach the object evenly transmitting load, reduce stress concentration phenomenon. Simultaneously, after making plane into sphere, with reference to Fig. 5, after sphere is bursted and become muddy when a thaw sets in concrete placement, concrete mobility can be increased, make concrete evenly to the frost boiling of spherical load case both sides, reduce concrete alluvial phenomenon, improve load case surrounding concrete pouring quality, reduce the test error brought because load case surrounding concrete pouring quality is poor.
Accompanying drawing explanation
Fig. 1 is the utility model preferred embodiment.
Fig. 2 is the utility model example structure sectional view.
Fig. 3 is the structural representation of the utility model whisky jack.
Fig. 4 is existing or the structural representation of conventional hydraulic screw block.
Fig. 5 is traditional cylindrical load case and the utility model frost boiling contrast schematic diagram.
Embodiment
A kind of spherical load case for self-balance testing pile method, comprise whisky jack array, described whisky jack array is made up of the whisky jack 1 of circular array, the quantity of whisky jack can specifically select 5 or 8 etc., described whisky jack 1 comprises hydro-cylinder upper cylinder body and hydro-cylinder lower cylinder body and is slidably connected between hydro-cylinder upper cylinder body and hydro-cylinder lower cylinder body, sealing-ring 12 it is provided with in the junction of hydro-cylinder upper cylinder body and hydro-cylinder lower cylinder body, hydro-cylinder upper cylinder body is provided with top offset meter 3, hydro-cylinder lower cylinder body is provided with bottom offset meter 4, described spherical load case also comprises high-pressure line 5 and described high-pressure line 5 is directly or indirectly connected with each whisky jack, the external top of cylinder of described hydro-cylinder upper cylinder body is spherical, the external bottom of cylinder of described hydro-cylinder lower cylinder body is spherical. in the present embodiment, hydro-cylinder upper cylinder body is connected with annular upper bracket 61, described top offset meter 3 is located on annular upper bracket 61, hydro-cylinder lower cylinder body is connected with annular lower bracket 62, described bottom offset meter 4 is located on annular lower bracket 62, with reference to Fig. 1, hydro-cylinder lower cylinder body is realized to the steel plate 2 that the thickness arranged is 2 centimetres by erecting of being welded to connect with both respectively with the connection of annular lower bracket 62, equally, hydro-cylinder upper cylinder body is also erected (not the drawing in Fig. 1) that realize to the steel plate arranged by what be welded to connect with both respectively with the connection of annular upper bracket 61.
Claims (2)
1. the spherical load case for self-balance testing pile method, comprise whisky jack array, described whisky jack array is made up of the whisky jack (1) of circular array, described whisky jack (1) comprises hydro-cylinder upper cylinder body and hydro-cylinder lower cylinder body and is slidably connected between hydro-cylinder upper cylinder body and hydro-cylinder lower cylinder body, sealing-ring (12) it is provided with in the junction of hydro-cylinder upper cylinder body and hydro-cylinder lower cylinder body, hydro-cylinder upper cylinder body is provided with top offset meter (3), hydro-cylinder lower cylinder body is provided with bottom offset meter (4), described spherical load case also comprises high-pressure line (5) and described high-pressure line (5) is directly or indirectly connected with each whisky jack, it is characterized in that, the external top of cylinder of described hydro-cylinder upper cylinder body is spherical, the external bottom of cylinder of described hydro-cylinder lower cylinder body is spherical.
2. the spherical load case for self-balance testing pile method according to claim 1, it is characterized in that, hydro-cylinder upper cylinder body is connected with annular upper bracket (61), described top offset meter (3) is located in annular upper bracket (61), being connected with annular lower bracket (62) on hydro-cylinder lower cylinder body, described bottom offset meter (4) is located in annular lower bracket (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521138142.0U CN205276334U (en) | 2015-12-31 | 2015-12-31 | A spherical load box for self -balancing peg method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521138142.0U CN205276334U (en) | 2015-12-31 | 2015-12-31 | A spherical load box for self -balancing peg method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205276334U true CN205276334U (en) | 2016-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521138142.0U Expired - Fee Related CN205276334U (en) | 2015-12-31 | 2015-12-31 | A spherical load box for self -balancing peg method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205276334U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258662A (en) * | 2019-05-21 | 2019-09-20 | 东莞市广强建筑基础工程有限公司 | A kind of self-balancing approach pile measurement device |
| CN111560998A (en) * | 2020-06-18 | 2020-08-21 | 杭州大地工程测试技术有限公司 | Equipment for pile foundation self-balancing detection and detection method using equipment |
-
2015
- 2015-12-31 CN CN201521138142.0U patent/CN205276334U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258662A (en) * | 2019-05-21 | 2019-09-20 | 东莞市广强建筑基础工程有限公司 | A kind of self-balancing approach pile measurement device |
| CN110258662B (en) * | 2019-05-21 | 2021-05-11 | 东莞市广强建筑基础工程有限公司 | Pile foundation detection device adopting self-balancing method |
| CN111560998A (en) * | 2020-06-18 | 2020-08-21 | 杭州大地工程测试技术有限公司 | Equipment for pile foundation self-balancing detection and detection method using equipment |
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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 |
Granted publication date: 20160601 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |