CN115262663A - Pile pulling device convenient to install and used for pile foundation anti-pulling static load test - Google Patents
Pile pulling device convenient to install and used for pile foundation anti-pulling static load test Download PDFInfo
- Publication number
- CN115262663A CN115262663A CN202210831060.2A CN202210831060A CN115262663A CN 115262663 A CN115262663 A CN 115262663A CN 202210831060 A CN202210831060 A CN 202210831060A CN 115262663 A CN115262663 A CN 115262663A
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- China
- Prior art keywords
- pile
- puller
- extractor
- pressure oil
- screw rod
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- 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.)
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/02—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by withdrawing
Abstract
The invention discloses a pile puller for a pile foundation uplift static load test, which is convenient to install and comprises an upper plate, a lower plate, a screw rod, a main beam, a high-pressure oil pump and a test pile, wherein a jack is arranged at the bottom of the upper plate, one end of the jack is installed on the outer surface of the main beam, a support is arranged on the outer surface of the main beam, and a steel bar of the test pile penetrates through the lower end of a steel bar connection converter and is anchored by an anchorage device. This technical scheme exempts from to weld pile extractor installation dismantles conveniently, and it is mainly connected the installation through bolt and ground tackle and dismantles very fast, and traditional pile extractor installation is accomplished through the welding and needs several hours usually, dismantles and accomplishes through cutting machine cutting reinforcing bar, leads to the length and also needs the time more than an hour, exempts from to weld the pile extractor owing to do not use the electric welding, so do not need professional welder, do not need to use the power, also need not start on fire operation ticket.
Description
Technical Field
The invention relates to the technical field of pile extractors, in particular to a pile extractor for a pile foundation uplift static load test, which is convenient to install.
Background
In pile foundation detection, a single-pile vertical uplift static load test is commonly used, a conventional method for connecting a steel bar and a pile extractor of the single-pile vertical uplift static load test adopts welding, according to the safety management regulations of a Chinese petrochemical industry and related enterprises, before electric welding operation is carried out on a construction site, a welder needs to obtain a special operation certificate of the welder and can carry out construction operation through a qualified training party of related management departments, a fire operation ticket needs to be handled before operation at each time, a cutting machine needs to be used for cutting off the steel bar after the test is completed, time is greatly wasted, the detection cost is increased, the whole test needs power, most of pile foundation construction is in the early stage of engineering, no power is available on the site, and the difficulty is increased for the test.
Disclosure of Invention
Aiming at the problems, the invention provides the pile puller for the pile foundation uplift static load test, which is convenient to install and can effectively solve the problems that the existing pile puller for the pile foundation uplift static load test needs electric welding operation, is troublesome to install and disassemble, is high in cost, is low in efficiency and the like.
The technical scheme of the invention is as follows:
the utility model provides a pile foundation resistance to plucking pile driver for static test convenient to installation, includes hanging wall, lower wall, screw rod, girder, high-pressure oil pump and experimental stake, the bottom of hanging wall is provided with the jack, the surface at the girder is installed to the one end of jack, the surface of girder is provided with the support, the reinforcing bar of experimental stake passes anchor tackle anchor for the lower extreme of steel bar connection converter, the lower extreme is fixed through the ring flange nut on the screw rod, high-pressure oil pump's surface intercommunication has high pressure fuel pipe, high pressure fuel pipe's surface is equipped with the manometer, the surface of experimental stake is equipped with displacement sensor.
The working principle of the technical scheme is as follows: the welding-free pile puller is used for a single-pile vertical pulling static load test, round holes are formed in two ends of an upper plate, a screw can penetrate through the upper plate and is placed on a jack, the screw penetrates through the holes in two ends of the upper plate and is connected with a lower plate, a hole is formed in the middle of the lower plate and is circularly distributed, the screw penetrates through the lower plate and is fixed by a nut with a flange, the lower end of the screw is connected with a steel bar connection converter and is fixed by a nut with a flange, a main rib of a pile is fixed on the steel bar connection converter by an anchorage device, the distance between the upper plate and the lower plate and the height of the steel bar connection converter can be adjusted by the nut with the flange, the distance between the lower plate and a pile head can be adjusted by the nut with the flange and the length of an anchorage device clamping steel bar, the main rib of the test pile can be quickly and effectively connected with the pile puller by the anchorage device without electric welding operation, the anchorage device can be recycled, the uniform stress of the steel bar in the test process can be effectively ensured, the uneven stress of the steel bar can be prevented, the steel bar is broken first, and the failure of the steel bar with large stress can be caused.
In a further technical scheme, four holes are uniformly distributed at two ends of the upper disc and are connected with the lower disc through screws.
In a further technical scheme, the screw rod penetrates through the upper end of the steel bar connection converter and is fixed through a flange nut, the screw rod penetrates through the upper end of the lower disc and is fixed through the flange nut, the high-pressure oil pump is connected with the jack through a high-pressure oil pipe, when the high-pressure oil pump is pressurized, the pressure gauge displays pressure, the jack exerts force to push the upper disc upwards, the force is transmitted to the test pile through the upper disc, the screw rod, the lower disc and the steel bar connection converter, the test pile generates upward displacement, and meanwhile the displacement sensor measures the upward pulling amount of the pile.
The invention has the beneficial effects that:
1. the pile extractor for the pile foundation uplift static load test, which is convenient to install, has the characteristics of no need of electric power, convenience for welders, convenience for installation and disassembly, safety, energy conservation, environmental friendliness and the like, the traditional pile extractor has the defects of damage to the bodies of welders due to electric welding connection, environmental pollution, easiness for causing damage to human bodies due to cutting machines, serious dependence on electric power and the like, and the welding-free pile extractor breaks away from the limitation on electric power, electric welding, welders and related safety management.
2. The welding-free pile extractor is convenient to install and disassemble, is mainly connected, installed and disassembled quickly through the bolt and the anchorage device, the traditional pile extractor is installed by welding for several hours, the disassembly is completed by cutting the steel bars through a cutting machine, the whole time is more than one hour, and the welding-free pile extractor does not need a professional welder, does not need a power supply and does not need to start a fire operation ticket because the welding-free pile extractor does not use electric welding.
Drawings
Fig. 1 is a schematic structural diagram of a pile extractor for a pile foundation uplift static load test, which is convenient to install according to an embodiment of the invention;
FIG. 2 is a plan view of an upper plate of a pile extractor for a pile foundation uplift static load test, which is convenient to install according to an embodiment of the invention;
FIG. 3 is a schematic top-wall side sectional view of a pile extractor for a pile foundation uplift static load test, which is convenient to install according to an embodiment of the invention;
fig. 4 is a schematic plan view of a lower plate of a pile extractor for pile foundation uplift static load test, which is convenient to install according to an embodiment of the invention;
FIG. 5 is a schematic sectional side view of a lower plate of a pile extractor for a pile foundation uplift static load test, which is convenient to install according to an embodiment of the invention;
fig. 6 is a schematic plan view of a steel bar connection converter of a pile extractor for pile foundation uplift static load test, which is convenient to install according to an embodiment of the invention;
fig. 7 is a schematic top sectional view of a steel bar connection converter of a pile extractor for a pile foundation uplift static load test, which is convenient to install according to an embodiment of the present invention.
Description of reference numerals:
1. hanging the plate; 2. a bottom wall; 3. the steel bar is connected with the converter; 4. an anchorage device; 5. a flange nut; 6. a screw; 7. a jack; 8. a main beam; 9. a support; 10. a pressure gauge; 11. a high-pressure oil pump; 12. a high pressure oil pipe; 13. a displacement sensor; 14. and (6) testing the pile.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings.
Examples
As shown in fig. 1, pile pulling device for pile foundation resistance to plucking static load test convenient to installation, including hanging wall 1, lower wall 2, screw rod 6, girder 8, high-pressure oil pump 11 and experimental stake 14, the bottom of hanging wall 1 is provided with jack 7, the surface at girder 8 is installed to the one end of jack 7, the surface of girder 8 is provided with support 9, the reinforcing bar of experimental stake 14 passes anchorage 4 anchor for the lower extreme of steel bar connection converter 3, it is fixed that flange nut 5 is passed through to the lower extreme of screw rod 6, the surface intercommunication of high-pressure oil pump 11 has high-pressure fuel pipe 12, high-pressure fuel pipe 12's surface is equipped with manometer 10, the surface of experimental stake 14 is equipped with displacement sensor 13.
The working principle of the technical scheme is as follows:
the welding-free pile puller is used for a single-pile vertical uplift static load test, circular holes are formed in two ends of an upper plate 1, a screw rod 6 can penetrate through the upper plate 1 and is placed on a jack 7, the screw rod 6 penetrates through the holes in two ends of the upper plate 1 and is connected with a lower plate 2, the middle of the lower plate 2 is provided with circularly distributed holes, the screw rod 6 penetrates through the lower plate 2 and is fixed by a nut 5 with a flange, the lower end of the screw rod 6 is connected with a steel bar connection converter 3 and is fixed by the nut 5 with the flange, a main steel bar of a pile is fixed on a steel bar connection converter 3 by an anchorage device 4, the distance between the upper plate 1 and the lower plate 2 and the height of the steel bar connection converter 3 can be adjusted by the flange nut 5, the distance between the lower plate 2 and a pile head can be adjusted by the length of clamping steel bars by the flange nut 5 and the anchorage device 4, the main steel bar of the test pile puller can be quickly and effectively connected by the anchorage device 4, electric welding operation is not needed, the anchorage device 4 can be recycled, the uniform stress of the steel bars in the test process can be effectively prevented from being unevenly stressed, the first broken, and the failure of the test can be caused.
In another embodiment, four holes are uniformly distributed at two ends of the upper disc 1, and the upper disc is connected with the lower disc 2 through a screw 6.
In another embodiment, the screw 6 passes through the upper end of the steel bar connection converter 3 and is fixed by the flange nut 5, the screw 6 passes through the upper end of the lower disc 2 and is fixed by the flange nut 5, the high-pressure oil pump 11 is connected with the jack 7 through the high-pressure oil pipe 12, when the high-pressure oil pump 11 is pressurized, the pressure gauge 10 displays pressure, the force of the jack 7 is upwards pushed to the upper disc 1, the force is transmitted to the test pile 14 through the upper disc 1, the screw 6, the lower disc 2 and the steel bar connection converter 3, the test pile 14 generates upwards displacement, and meanwhile the displacement sensor 13 measures the upwards pulling amount of the pile.
The above embodiments only express specific embodiments of the present invention, and the description is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (3)
1. The utility model provides a pile foundation resistance to plucking static test is with pile puller convenient to installation, includes hanging wall pile puller, lower wall pile puller, screw rod pile puller, girder pile puller, high-pressure oil pump pile puller and experimental pile puller, a serial communication port, the bottom of hanging wall pile puller is provided with the jack pile puller, the surface at the girder pile puller is installed to the one end of jack pile puller, the surface of girder pile puller is provided with the support pile puller, the lower extreme that the reinforcing bar of experimental pile puller passed steel bar connection converter pile puller is with ground tackle pile puller anchor, it is fixed that flange nut pile puller is passed through to screw rod pile puller upper and lower ends, the surface intercommunication of high-pressure oil pump pile puller has high-pressure oil pipe pile puller, the surface of high-pressure oil pipe pile puller is equipped with the manometer pile puller, the surface of experimental pile puller is equipped with displacement sensor pile puller.
2. The pile extractor for the pile foundation uplift static load test convenient to install according to claim 1, wherein four holes are uniformly distributed at two ends of the upper disc pile extractor, and the upper disc pile extractor is connected with the lower disc pile extractor through a screw rod pile extractor.
3. The pile extractor for pile foundation uplift static load test convenient to install of claim 1, wherein the screw rod pile extractor passes through the upper end of the pile extractor of the steel bar connection converter and is fixed by a flange nut pile extractor, the screw rod pile extractor passes through the upper end of the lower disc pile extractor and is fixed by a flange nut pile extractor, and the high-pressure oil pump pile extractor is connected with the jack pile extractor through a high-pressure oil pipe pile extractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210831060.2A CN115262663A (en) | 2022-07-15 | 2022-07-15 | Pile pulling device convenient to install and used for pile foundation anti-pulling static load test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210831060.2A CN115262663A (en) | 2022-07-15 | 2022-07-15 | Pile pulling device convenient to install and used for pile foundation anti-pulling static load test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115262663A true CN115262663A (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210831060.2A Pending CN115262663A (en) | 2022-07-15 | 2022-07-15 | Pile pulling device convenient to install and used for pile foundation anti-pulling static load test |
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| Country | Link |
|---|---|
| CN (1) | CN115262663A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115478571A (en) * | 2022-11-07 | 2022-12-16 | 广州市市政工程试验检测有限公司 | Static load anchor pile counter-force adjusting system and method |
-
2022
- 2022-07-15 CN CN202210831060.2A patent/CN115262663A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115478571A (en) * | 2022-11-07 | 2022-12-16 | 广州市市政工程试验检测有限公司 | Static load anchor pile counter-force adjusting system and method |
| CN115478571B (en) * | 2022-11-07 | 2023-12-19 | 广州市市政工程试验检测有限公司 | Static load anchor pile counter-force adjusting system and method |
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