CN107059961B - A kind of static load of pile foundation device - Google Patents
A kind of static load of pile foundation device Download PDFInfo
- Publication number
- CN107059961B CN107059961B CN201710477205.2A CN201710477205A CN107059961B CN 107059961 B CN107059961 B CN 107059961B CN 201710477205 A CN201710477205 A CN 201710477205A CN 107059961 B CN107059961 B CN 107059961B
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- Prior art keywords
- mounting disc
- reinforcing bar
- force
- mounting
- hole
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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 static load of pile foundation devices, and the supporting station of reaction beam, the jack being fixedly installed in above reaction beam, the force disk for being fixed on jack piston rod, the connector for being detachably connected reinforcing bar and the disk that exerts a force are used to support including reaction beam, positioned at reaction beam both ends.In test, only force disk and reinforcing bar need to be connected by connector, it is not required to the prolonged bar further according to the specific measurement cutting certain length between force disk and reinforcing bar, then the both ends of prolonged bar are respectively welded again and are fixed on reinforcing bar and force disk, reduce the number of welding and cutting, to improve installation effectiveness, while reducing influence of the welding to operator.
Description
Technical field
The present invention relates to dead load test on pile foundation, and in particular to a kind of static load of pile foundation device.
Background technique
The most direct most reliable method of Pile Bearing Capacity is measured when static load test, anchoring pile counter-force boom device surveys single pile
Vertical bearing capacity be a kind of common method.But spreading is carried out to the reinforcing bar of anchoring pile when testing, and make it across counter-force
Beam is welded on the force disk above jack, and jack pushes up force disk upwards, is drawn the reinforcing bar in anchoring pile, is measured stake
Vertically pulling-resistant data, to detect whether the vertically pulling-resistant ability of pile foundation complies with standard.
Since in pile anchoring, the length that reinforcing bar is emerged is not grown, therefore being welded in reinforcing bar accurate stable on force disk, it need to prolong
Long muscle.First then prolonged bar is welded between reinforcing bar and force disk to appropriate length by cutting prolonged bar, after being completed
Cut away prolonged bar.The project amount welded and cut in whole process is excessive, not only to take a significant amount of time, but also weld job
It is unfavorable to the health of worker.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of static load of pile foundation device, welding is reduced
With the number of cutting, detection efficiency is improved.
To achieve the above object, the present invention provides the following technical scheme that
A kind of static load of pile foundation device is used to support supporting station, the fixation of reaction beam including reaction beam, positioned at reaction beam both ends
It is installed on the jack above reaction beam, the force disk for being fixed on jack piston rod, for being detachably connected reinforcing bar and force
The connector of disk.
By using above-mentioned technical proposal, in test, only force disk and reinforcing bar need to be connected by connector, be not required to root again
According to the prolonged bar of the specific measurement cutting certain length between force disk and reinforcing bar, then the both ends of prolonged bar are respectively welded again
It is fixed on reinforcing bar and force disk, the number of welding and cutting is reduced, to improve installation effectiveness, while reducing Welder
Make the influence to operator.
The further setting of the present invention are as follows: the connector is to extend reinforcing bar, and described extension reinforcing bar one end is welded in reinforcing bar
And the other end is fed through force disk and is removably connected to force disk.
By using above-mentioned technical proposal, in test, reinforcing bar one end will be extended and be welded on reinforcing bar, then make to extend steel
The muscle other end is fed through force disk, then together with it is removably fixed with force disk.It is not required to carry out force disk again and prolong
Welding between long reinforcing bar, while being also not required to measure and cut to extend reinforcing bar, it so that the length for extending reinforcing bar is greater than force disk
The distance between reinforcing bar keeps installation more convenient.
The further setting of the present invention are as follows: mounting hole is offered on the force disk, the mounting hole is circumferential along force disk
It equipped with several, is embedded in the mounting hole and is fixed with mounting blocks, cone tank, the cone tank bottom are offered on the mounting blocks
End offers cylinder groove, and the limit sleeve for offering perforating is embedded in the cone tank, and the limit sleeve is circumferential seperated along it
Setting is in several pieces of limited blocks, and the extension reinforcing bar is fed through cylinder groove and perforating and with perforating in interference fit.
By using above-mentioned technical proposal, during installation, it will first extend reinforcing bar and worn in limit sleeve above limit sleeve,
Limited block, which pushes against, at this time extends reinforcing bar, then will extend reinforcing bar lower end and is fixedly welded in reinforcing bar.Extending reinforcing bar by steel
When muscle is to its downward pulling force, extends reinforcing bar and limit sleeve moves downward simultaneously, at this time since cone tank is tapered, therefore limit sleeve
Gap between cone tank is smaller and smaller, and the gap extended between reinforcing bar and limit sleeve is smaller and smaller, i.e., pressure between the two
Power is increasing, and frictional force is increasing, it is ensured that extending reinforcing bar can be stably connected in force disk.After measurement, make very heavy
Power is unloaded on top, takes out limited block upwards, and separation can be extended to reinforcing bar and force disk, reused to force disk.
The further setting of the present invention are as follows: the perforating inner wall is equipped with screw thread, and the extension screw thread steel, which is connected to, to be worn
Apertured.
By using above-mentioned technical proposal, to make limit sleeve and extend that reinforcing bar is more stable links together, make to limit
Set can be with steel bar motion be extended, and when moving downward to ensure to extend reinforcing bar, limit sleeve can be moved downward, and reduce limit sleeve and taper
Gap between slot makes extension reinforcing bar and limit sleeve that can stablize being mounted on for fastening and exerts a force on disk.
The further setting of the present invention are as follows: the connector is the mounting disc and fixed link below reaction beam, described
Fixed link is fixedly connected on mounting disc and force disk, and the fixed link is circumferentially with several along mounting disc, and reinforcing bar is fed through peace
Sabot and it is removably connected to mounting disc.
By using above-mentioned technical proposal, in test, reinforcing bar one end is directly fed through force disk, then by it and exert a force
Disk is removably fixed with together.It is not required to weld and cut extension reinforcing bar, keeps installation more convenient, and save the required volume of test
Outer production extends the material of reinforcing bar.
The further setting of the present invention are as follows: mounting hole is offered in the mounting disc, the mounting hole is along mounting disc circumferential direction
It equipped with several, is embedded in the mounting hole and is fixed with mounting blocks, cone tank, the cone tank bottom are offered on the mounting blocks
End offers cylinder groove, and the limit sleeve for offering perforating is embedded in the cone tank, and the limit sleeve is circumferential seperated along it
Setting is in several pieces of limited blocks, and reinforcing bar is fed through cylinder groove and perforating and with perforating in interference fit.
By using above-mentioned technical proposal, during installation, limited block is first taken out, then wears reinforcing bar below mounting blocks
Enter in mounting blocks, then limited block is put into limit sleeve again, limited block pushes against reinforcing bar at this time.In reinforcing bar by tensile stress
When, reinforcing bar drives limit sleeve to move downward, and since taper sheath is tapered, therefore the distance between limit sleeve and cone tank are increasingly
Small, the gap between reinforcing bar and limit sleeve is smaller and smaller, i.e., pressure between the two is increasing, and frictional force is increasing, really
Protecting reinforcing bar can be stably connected in mounting disc.After measurement, so that jack is unloaded power, take out limited block upwards, it can separation of steel
Muscle and mounting disc.The device does not have waste material generation in measurement process, and complete equipment can be recycled, and has saved inspection
Survey cost.
The further setting of the present invention are as follows: the perforating inner wall is equipped with screw thread, and screw thread steel is connected to perforating.
By using above-mentioned technical proposal, to make limit sleeve and reinforcing bar is more stable links together, make limit sleeve can
With steel bar motion, come when ensuring that reinforcing bar moves downward, limit sleeve can be moved downward, between reducing between limit sleeve and cone tank
Gap makes reinforcing bar and limit sleeve that can stablize being mounted in mounting disc of fastening.
The further setting of the present invention are as follows: be arranged with several adjusting sets outside the mounting disc, the adjusting set fission is set
It is set to two symmetrical adjust and divides set, mounting hole is also offered in the adjusting set, is in be detachably connected between the adjusting set,
It and is in be detachably connected between the adjusting set and mounting disc.
By using above-mentioned technical proposal, dress adjusting set can be added outside mounting disc according to the stake diameter of pile foundation, it is ensured that reinforcing bar
It can be stably mounted in mounting disc.Even if the device can be used for the pile measurement of various diameters, its applicability is improved.
The further setting of the present invention are as follows: threaded hole, the tune are radially offered in the adjusting set and mounting disc
The threaded hole internal screw thread of section set is connected with connecting screw, and the connecting screw near the mounting disc is threadedly connected to mounting disc,
Other described connecting screws are threadedly connected to two radially adjacent adjusting sets, and described connecting screw one end is offered for turning
The force slot of dynamic connecting screw.
By using above-mentioned technical proposal, during installation, adjusting set and mounting disc are fixedly connected with by connecting screw, and
Adjusting set and adjusting set, to make radially to fix between adjusting set and mounting disc.Prevent when detecting adjusting set due to draw answer
Power and separated with mounting disc, make detection can go on smoothly.
The further setting of the present invention are as follows: through-hole, the through-hole are radially offered in the adjusting set and mounting disc
Connector sleeve, the connector sleeve and through-hole are inside embedded in interference fit, the threaded hole is opened in connector sleeve.
By using above-mentioned technical proposal, to facilitate the processing of threaded hole, connect the screw thread that connecting screw can be stable
It is connected to threaded hole.
The invention has the following advantages that reducing the number of the welding and cutting that need to carry out in detection process, detection is improved
Efficiency；And the pile foundation of various stake diameters can be detected, the scope of application is larger.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one；
Fig. 2 is the top view of embodiment one；
Fig. 3 is a kind of partial sectional view for the disk that exerts a force of embodiment；
Fig. 4 is the structural schematic diagram of embodiment two；
Fig. 5 is the side view (being mainly used for embodying fixed link) of embodiment two；
Fig. 6 is the top view of mounting disc in embodiment two；
Fig. 7 is the partial sectional view of mounting disc in embodiment two；
Fig. 8 is the top view of mounting disc in embodiment three；
Fig. 9 is the cross-sectional view of three kinds of mounting discs of embodiment；
Figure 10 is the partial schematic diagram of mounting disc in embodiment three.
Appended drawing reference: 1, reaction beam；2, pile foundation；3, supporting station；4, jack；5, exert a force disk；6, mounting hole；7, it installs
Block；8, cone tank；9, cylinder groove；10, limit sleeve；11, perforating；12, limited block；13, connector；14, extend reinforcing bar；15,
Mounting disc；16, fixed link；17, adjusting set；18, a point set is adjusted；19, through-hole；20, connector sleeve；21, threaded hole；22, spiral shell is connected
Bar；23, exert a force slot；24, reinforcing bar.
Specific embodiment
Referring to attached drawing, the present invention will be further described.
Embodiment one:
As shown in Figure 1, a kind of static load of pile foundation device, including reaction beam 1, reaction beam 1 are located at 2 top of pile foundation.1 liang of reaction beam
End lower section is equipped with the supporting station 3 for being fixed on ground.Jack 4, jack 4 and pile foundation 2 are fixedly installed with above reaction beam 1 in same
Axis setting.4 top of jack is coaxially fixed with force disk 5.
As depicted in figs. 1 and 2, mounting hole 6 being offered on force disk 5, mounting hole 6 is circumferentially with several along force disk 5,
Reinforcing bar 24 in mounting hole 6 and pile foundation 2 corresponds.As shown in Figures 2 and 3, it is embedded in mounting hole 6 and is fixed with mounting blocks 7, pacified
Cone tank 8 is offered on dress block 7,8 bottom end of cone tank offers cylinder groove 9.Limit sleeve 10, limit sleeve are embedded in cone tank 8
Perforating 11 is offered on 10,11 inner wall of perforating is equipped with screw thread.Cylinder groove 9, cone tank 8 and perforating 11 are coaxially disposed.
Limit sleeve 10 is in several pieces of limited blocks 12 along its circumferential split settings.
As shown in Figure 1, being equipped with connector 13 between force disk 5 and reinforcing bar 24, connector 13 is to extend reinforcing bar 14, extends steel
14 one end of muscle is welded in reinforcing bar 24.Cylinder groove 9 and perforating are fed through back to 24 one end of reinforcing bar as shown in figure 3, extending reinforcing bar 14
It 11 and is threaded with perforating 11.
The working principle of the device is as described below:
1, supporting table is fixed on the ground around pile foundation 2, then reaction beam 1 is placed in two supporting tables；It will
Jack 4 is fixedly mounted on reaction beam 1, and jack 4 and pile foundation 2 are coaxial at this time, and the disk 5 that exerts a force coaxially is fixed on jack 4；
2, will extend in the cone tank 8 that 14 one end of reinforcing bar is fed through from top to bottom on force disk 5, then by 10 spiral shell of limit sleeve
Line, which is connected to, extends reinforcing bar 14, is caught in limit sleeve 10 in cone tank 8, makes cone tank 8 and limit sleeve 10 in interference fit；
Then will extend the reinforcing bar other end to be fixedly welded on reinforcing bar 24；
3,4 pairs of jack force disks 5 have a upward power, drive and extend reinforcing bar 14 upwards, final to drive in pile foundation 2
Reinforcing bar 24 upwards, reaches the vertical drawing to pile foundation 2, thus to measure the vertically pulling-resistant data of pile foundation 2.
Embodiment two:
The difference of embodiment two and embodiment one is: connector 13 is different.
As shown in Figure 4 and Figure 5, connector 13 includes mounting disc 15 and fixed link 16, and mounting disc 15 is located under reaction beam 1
Side, and be coaxially disposed with force disk 5.Mounting disc 15 and force disk 5 can be any materials such as concrete or metal.Fixed link 16 is set
There are several and be located between mounting disc 15 and force disk 5,16 both ends of fixed link are respectively fixedly connected in mounting disc 15 and force disk 5.
Fixed link 16 can be connected mounting disc 15 with force disk 5 by pre-buried mode, and the mode that can also be connected through a screw thread, which is connected, to be installed
Disk 15 and force disk 5.
As shown in Figure 6 and Figure 7, mounting hole 6 is offered in mounting disc 15, mounting hole 6 is circumferentially with several along mounting disc 15
A, the reinforcing bar 24 in mounting hole 6 and pile foundation 2 corresponds.It is embedded in mounting hole 6 and is fixed with mounting blocks 7, opened up on mounting blocks 7
There is cone tank 8,8 bottom end of cone tank offers cylinder groove 9.It is embedded with limit sleeve 10 in cone tank 8, offers and wears on limit sleeve 10
Apertured 11,11 inner wall of perforating are equipped with screw thread.Cylinder groove 9, cone tank 8 and perforating 11 are coaxially disposed.Limit sleeve 10 is along it
Circumferential split settings are in several pieces of limited blocks 12.24 one end of reinforcing bar is fed through cylinder groove 9 and perforating 11 and with perforating 11
It is threadedly coupled.
1, supporting table is fixed on the ground around pile foundation 2, then reaction beam 1 is placed in two supporting tables；
2, limited block 12 is taken out, jack 4 is fixedly mounted on reaction beam 1, jack 4 and pile foundation 2 are coaxial at this time, and
Force disk 5 is coaxially fixed on jack 4；
3, during jack 4 is placed on reaction beam 1,24 one end of reinforcing bar is fed through cone tank 8, by limit sleeve 10
It is threadedly connected to reinforcing bar 24, is caught in limit sleeve 10 in cone tank 8, makes cone tank 8 and limit sleeve 10 in interference fit；
4,4 pairs of jack force disks 5 have a upward power, drive the reinforcing bar 24 in pile foundation 2 upward, reach and erect to stake
To drawing, thus to measure the vertically pulling-resistant data of pile foundation 2.
Embodiment three:
The difference of embodiment three and embodiment two is: as shown in figure 8, being arranged with several adjusting sets outside mounting disc 15
17, mounting hole 6 also is circumferentially with along it in adjusting set 17.One 17 split settings of adjusting set divides set at two symmetrical adjust
18.As shown in Figure 9 and Figure 10, through-hole 19 is radially offered in adjusting set 17 and mounting disc 15, is fixed in through-hole 19 embedding
Equipped with connector sleeve 20, connector sleeve 20 and through-hole 19 are in interference fit.Connector sleeve 20 is facilitated the material of processing by metal or plastics etc.
It is made.
As shown in Figure 9 and Figure 10, threaded hole 21 is offered on connector sleeve 20.21 internal screw thread of threaded hole of adjusting set 17 connects
There is connecting screw 22,22 one end of connecting screw offers the force slot 23 for being rotatablely connected screw rod 22, and force slot 23 is in six sides
Shape.Connecting screw 22 near mounting disc 15 is threadedly connected to mounting disc 15, other connecting screws 22 are threadedly connected to along diameter
To two adjacent adjusting sets 17.
Before the test, according to the pile foundation 2 that need to be measured, connecting screw 22 is screwed by die nut, thus disassembly or
Installation and adjustment set 17, it is ensured that reinforcing bar 24 may be mounted in mounting disc 15 or adjusting set 17, and the device is made to be suitable for a variety of pile foundations 2
Pile foundation 2.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several 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 (3)
1. a kind of static load of pile foundation device, it is characterized in that: being used to support reaction beam including reaction beam (1), positioned at reaction beam (1) both ends
(1) supporting station (3), the jack (4) being fixedly installed in above reaction beam (1), the force for being fixed on jack (4) piston rod
Disk (5), the connector (13) for being detachably connected reinforcing bar (24) and force disk (5), the connector (13) are positioned at counter-force
Mounting disc (15) and fixed link (16) below beam (1), the fixed link (16) are fixedly connected on mounting disc (15) and force disk
(5), the fixed link (16) is circumferentially with several along mounting disc (15), and reinforcing bar (24) is fed through mounting disc (15) and detachable
It is connected to mounting disc (15)；
It being offered mounting hole (6) on the mounting disc (15), the mounting hole (6) is circumferentially with several along mounting disc (15),
It is embedded and is fixed with mounting blocks (7) in the mounting hole (6), offer cone tank (8), the cone tank on the mounting blocks (7)
(8) bottom end offers cylinder groove (9), is embedded with the limit sleeve (10) for offering perforating (11) in the cone tank (8), described
Limit sleeve (10) is in several pieces of limited blocks (12) along its circumferential split settings, and reinforcing bar (24) is fed through cylinder groove (9) and perforating
(11) and with perforating (11) in interference fit, perforating (11) inner wall is equipped with screw thread, and reinforcing bar (24), which is threadedly connected to, to be worn
Apertured (11)；
Several adjusting sets (17) are arranged with outside the mounting disc (15), adjusting set (17) split settings are symmetrical at two
A point set (18) is adjusted, is also offered mounting hole (6) on the adjusting set (17), is in detachably to connect between the adjusting set (17)
It connects, and is in be detachably connected between the adjusting set (17) and mounting disc (15).
2. a kind of static load of pile foundation device according to claim 1, it is characterized in that: the adjusting set (17) and mounting disc (15)
On radially offer threaded hole (21), threaded hole (21) internal screw thread of the adjusting set (17) is connected with connecting screw
(22), the connecting screw (22) near the mounting disc (15) is threadedly connected to mounting disc (15), other described connecting screws
(22) two radially adjacent adjusting sets (17) are threadedly connected to, described connecting screw (22) one end is offered for the company of rotation
Connect the force slot (23) of screw rod (22).
3. a kind of static load of pile foundation device according to claim 2, it is characterized in that: the adjusting set (17) and mounting disc (15)
On radially offer through-hole (19), is embedded with connector sleeve (20) in the through-hole (19), the connector sleeve (20) and through-hole
(19) in interference fit, the threaded hole (21) is opened in connector sleeve (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710477205.2A CN107059961B (en) | 2017-06-21 | 2017-06-21 | A kind of static load of pile foundation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710477205.2A CN107059961B (en) | 2017-06-21 | 2017-06-21 | A kind of static load of pile foundation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107059961A CN107059961A (en) | 2017-08-18 |
| CN107059961B true CN107059961B (en) | 2019-06-18 |
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ID=59594300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710477205.2A Active CN107059961B (en) | 2017-06-21 | 2017-06-21 | A kind of static load of pile foundation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107059961B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201554479U (en) * | 2009-11-24 | 2010-08-18 | 天津市振华预应力技术有限公司 | Mining anchor rod |
| CN201857620U (en) * | 2010-11-05 | 2011-06-08 | 中国科学院武汉岩土力学研究所 | Device for conducting vertical anti-pulling static loading experiment to pile and board foundation of electricity transmission tower |
| CN102561599A (en) * | 2011-12-08 | 2012-07-11 | 东南大学 | Connector of steel stranded wires and finished twisted steel |
| CN105256846A (en) * | 2015-10-14 | 2016-01-20 | 常州华厦建设工程质量检测有限公司 | Connecting device special for single-pile vertical pulling test |
| CN206245359U (en) * | 2016-12-02 | 2017-06-13 | 广东中科华大工程技术检测有限公司 | Foundation pile static loading test device |
-
2017
- 2017-06-21 CN CN201710477205.2A patent/CN107059961B/en active Active
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| Publication number | Publication date |
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| CN107059961A (en) | 2017-08-18 |
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