CN105064422B - The tension detection means and tension detection method of prefabricated pile - Google Patents
The tension detection means and tension detection method of prefabricated pile Download PDFInfo
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- CN105064422B CN105064422B CN201510490794.9A CN201510490794A CN105064422B CN 105064422 B CN105064422 B CN 105064422B CN 201510490794 A CN201510490794 A CN 201510490794A CN 105064422 B CN105064422 B CN 105064422B
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Abstract
The invention belongs to technical field of buildings, it is related to the tension detection means and tension detection method of a kind of prefabricated pile.Solve prior art construction complexity, implement the technical problem of inconvenience.Including the drawing mechanism being arranged on above the prefabricated pile being embedded in soil layer, a pressure-bearing platform is provided with above described prefabricated pile, drawing mechanism is located on pressure-bearing platform, pressure is provided with a tension platform on drawing mechanism, some perforation are opened up on pressure-bearing platform, stretching reinforcing bar is fixedly connected after the axial cage bar inside prefabricated pile through the perforation on pressure-bearing platform and is fixedly connected with tension platform.The present invention have it is simple in construction, it is easy to operate, it is easy to implement the advantages of.
Description
Technical field
The invention belongs to technical field of buildings, it is related to the tension detection means and tension detection method of a kind of prefabricated pile.
Background technology
In traditional pile tube pullout tests, the common method that stake is connected with test beam is to insert a number of reinforcing bar
In pile tube, microdilatancy wadding weft variation is then poured, concrete strength to be poured reaches design requirement, can carry out resistance to plucking examination
Test；The deficiency that conventional method is long in time limit, complicated construction technique, test operation are difficult is well known to those skilled in the art.
Chinese patent literature discloses a kind of pile tube resistance to plucking single pole power transmission experimental rig [application number：201410208782.8]
Including：Base, upper plate, transmission rod, centre-hole jack and girder；The girder is arranged on ground by buttress, the bottom
Seat is below the girder and for connecting at the top of pile tube sample, and the upper plate is located above the girder, the punching
Jack is placed on the girder and withstands the upper plate bottom, and the transmission rod lower end connects the base, the transmission rod
Upper end is connected through the centre-hole jack with the upper plate.
Such scheme overcomes the force pulling that more transmission rods are provided and is difficult to the problem of consistent, is led so as to reduce
The eccentric main unfavorable factor of experiment force pulling is caused, is advantageous to improve the accuracy of result of the test；And avoid more power transmissions
Force pulling detection, contrast and the adjustment work of bar, so as to improve test efficiency.And by follow-up improvement, further carry
The high install convenient of pile tube resistance to plucking single pole power transmission experimental rig.But the program implements complexity, be not suitable for pre- on building site
The quick detection of stake processed.
The content of the invention
Regarding the issue above, the present invention provides it is a kind of easy to implement, the tension of prefabricated pile tensile value can be detected
Detection method.
It is a further object of the present invention to provide a kind of tension detection means simple in construction.
To reach above-mentioned purpose, present invention employs following technical proposal：A kind of tension detection method of prefabricated pile, according to
Prefabricated pile cuts out the soil layer at the top of prefabricated pile until exposing prefabricated pile in the position of underground, and one is set up in the top of prefabricated pile
Pressure-bearing platform, drawing mechanism be placed on pressure-bearing platform and the axial line of the axial line of drawing mechanism and prefabricated pile on the same line,
Pressure sets a tension platform on drawing mechanism, and some perforation are opened up on pressure-bearing platform, and stretching reinforcing bar is fixedly connected inside prefabricated pile
Axial cage bar after be fixedly connected through the perforation on pressure-bearing platform and with tension platform, start the pressure that drawing mechanism works as drawing mechanism
Value stops drawing mechanism boosting when reaching the tension standard value of prefabricated pile, now as rising does not occur in prefabricated pile, show prefabricated pile
Tensile value it is qualified, as rising occurs in prefabricated pile, show that the tensile value of prefabricated pile is unqualified.
In the tension detection method of above-mentioned prefabricated pile, the quantity of the perforation on described pressure-bearing platform is not less than prefabricated pile
The quantity of upper axial cage bar, described stretching reinforcing bar and axial cage bar correspond and form cage construction after passing through perforation, institute
The drawing mechanism stated is located inside the cage construction formed by stretching reinforcing bar.
In the tension detection method of above-mentioned prefabricated pile, when prefabricated pile is located at below concrete layer, concrete is excavated
Layer forms breach, and the inwall of breach digs into rough structure, interrupts the transverse steel in concrete layer and make what is be interrupted
Extend outside breach inwall the end of transverse steel.
In the tension detection method of above-mentioned prefabricated pile, when the water level height for cutting out soil layer and underground water at the top of prefabricated pile
When the top of prefabricated pile, dug again after prefabricated pile over top pours into cement or cement mortar solidifies the soil layer at the top of prefabricated pile
Hole is so that the top of prefabricated pile is exposed to outside soil layer.
In the tension detection method of above-mentioned prefabricated pile, described drawing mechanism is oil cylinder or jack.
A kind of tension detection means of prefabricated pile, including it is arranged on the stretching-machine above the prefabricated pile being embedded in soil layer
Structure, described prefabricated pile top are provided with a pressure-bearing platform, and drawing mechanism is located on pressure-bearing platform, and pressure is provided with one and resisted on drawing mechanism
Platform is drawn, some perforation are opened up on pressure-bearing platform, stretching reinforcing bar passes through pressure-bearing platform after being fixedly connected with the axial cage bar inside prefabricated pile
On perforation and be fixedly connected with tension platform.
In the tension detection means of above-mentioned prefabricated pile, the quantity of the perforation on described pressure-bearing platform is not less than prefabricated pile
The quantity of upper axial cage bar, described stretching reinforcing bar and axial cage bar correspond and form cage construction after passing through perforation, institute
The drawing mechanism stated is located inside the cage construction formed by stretching reinforcing bar.
In the tension detection means of above-mentioned prefabricated pile, described drawing mechanism is oil cylinder or jack.
In the tension detection means of above-mentioned prefabricated pile, the axial line of described drawing mechanism and the axial line of prefabricated pile
It is located along the same line.
In the tension detection means of above-mentioned prefabricated pile, there is some fixed with pressure-bearing platform to connect for described pressure-bearing platform bottom
The pressure-bearing post connect is so that pressure-bearing platform operating space formed below.
Compared with prior art, the advantage of the invention is that：It is simple in construction, it is easy to operate, it is easy to implement.
Brief description of the drawings
Fig. 1 is structural representation provided by the invention.
In figure：Prefabricated pile 1, pressure-bearing platform 2, drawing mechanism 3, tension platform 4, stretching reinforcing bar 5, axial cage bar 6, concrete layer 7,
Breach 8, transverse steel 9, pressure-bearing post 10, operating space 11.
Embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Embodiment 1
As shown in figure 1, a kind of tension detection means of prefabricated pile, including be arranged on the prefabricated pile 1 being embedded in soil layer
The drawing mechanism 3 of side, the described top of prefabricated pile 1 are provided with a pressure-bearing platform 2, and drawing mechanism 3 is located on pressure-bearing platform 2, stretching-machine
Pressure is provided with a tension platform 4 on structure 3, and some perforation are opened up on pressure-bearing platform 2, and stretching reinforcing bar 5 is fixedly connected inside prefabricated pile 1
The perforation on pressure-bearing platform 2 is passed through after axial cage bar 6 and is fixedly connected with tension platform 4.Drawing mechanism 3 is oil cylinder or jack.Oil
Cylinder or jack carry pressure gauge, can read pressure value or value of thrust, and this is common knowledge, and here is omitted.Extended steel
Muscle 5 can be welded or bolted the fixtures such as pair with axial cage bar 6 and be fixedly connected.Pressure-bearing platform 2 and tension platform 4 can use concrete
Structure be made or cylinder iron, bloom etc..If tension platform 4 is mixed mud structure, tension platform 4 can be embedded into attaching nut
In, stretching reinforcing bar 5 and attaching nut is spirally connected fixed or is welded and fixed, if tension platform 4 is ironwork can will stretching reinforcing bar 5 with
Tension platform 4 directly welds.
The quantity of perforation on pressure-bearing platform 2 is perforated according to axial cage bar 6 not less than the quantity of axial cage bar 6 on prefabricated pile 1
Topological shape on prefabricated pile 1 is set, and such as axial cage bar 6 is set in a ring, then perforation is preferably also annular, such as axial cage bar
6 are square setting, then perforation is it is also preferred that be arranged to square, by that analogy, a pair of described stretching reinforcing bar 5 and axial cage bar 6 one
And cage construction should be formed through after perforating, described drawing mechanism 3 is located inside the cage construction formed by stretching reinforcing bar 5.
The axial line of the axial line of drawing mechanism 3 and prefabricated pile 1 is located along the same line so that the stress of tension platform 4 is equal
It is even, it is preferable that the axial line of drawing mechanism 3, prefabricated pile 1 and tension platform 4 is on the same line.If the bottom of pressure-bearing platform 2 has
The dry pressure-bearing post 10 being fixedly connected with pressure-bearing platform 2 is so that the operating space 11 formed below of pressure-bearing platform 2, construction easy to operation.
Embodiment 2
The present embodiment uses the detection means that embodiment 1 provides, and discloses a kind of tension detection method of prefabricated pile,
According to prefabricated pile 1 in the position of underground, the soil layer at the top of prefabricated pile 1 is cut out until exposing prefabricated pile 1, in the top of prefabricated pile 1
A pressure-bearing platform 2 is set up, drawing mechanism 3 is placed on pressure-bearing platform 2 and the axial line of the axial line of drawing mechanism 3 and prefabricated pile 1
On the same line, pressure sets a tension platform 4 on drawing mechanism 3, and some perforation are opened up on pressure-bearing platform 2, and stretching reinforcing bar 5 is solid
Surely pass through the perforation on pressure-bearing platform 2 after connecting the axial cage bar 6 inside prefabricated pile 1 and be fixedly connected with tension platform 4, start stretching
Mechanism 3 stops drawing mechanism 3 when the pressure value of drawing mechanism 3 reaches the tension standard value of prefabricated pile 1 and boosted, now as prefabricated
Stake 1 does not occur rising, and shows that the tensile value of prefabricated pile 1 is qualified, as rising occurs in prefabricated pile 1, shows the tensile value of prefabricated pile 1
It is unqualified.Drawing mechanism 3 is oil cylinder or jack.
The quantity of perforation on pressure-bearing platform 2 not less than axial cage bar 6 on prefabricated pile 1 quantity, described stretching reinforcing bar 5 with
Axial cage bar 6 is corresponded and cage construction is formed through after perforating, and described drawing mechanism 3 is located to be formed by stretching reinforcing bar 5
Cage construction inside.
When prefabricated pile 1 is located at 7 lower section of concrete layer, excavates concrete layer 7 and form breach 8, the shape of breach 8 does not limit
Fixed, as long as can expose prefabricated pile 1, the inwall of breach 8 is dug into rough structure, interrupts the transverse direction in concrete layer 7
Extend outside the inwall of breach 8 end of reinforcing bar 9 and the transverse steel 9 for making to be interrupted., can be with when repairing concrete layer 7 in the later stage
The transverse steel 9 interrupted is welded correspondingly with other reinforcing bars, and the inwall of breach 8 chisel is easy into rough structure
Formed and be engaged with the concrete newly inserted, recover the structure of original concrete layer 7 as far as possible.
When the water level of the soil layer and underground water that cut out the top of prefabricated pile 1 is higher than the top of prefabricated pile 1, pushed up in prefabricated pile 1
Pour into cement above portion or cement mortar makes after the soil layer solidification at the top of prefabricated pile 1 again borehole so that the top exposure of prefabricated pile 1
Outside soil layer.Curing agent can be added in cement mortar, and is filled into around prefabricated pile 1 with the methods of high pressure pouring and top,
So that the soil layer solidification at the top of prefabricated pile 1, underground water is blocked, is easy to fetch earth and detects.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although prefabricated pile 1, pressure-bearing platform 2, drawing mechanism 3, tension platform 4, stretching reinforcing bar 5, axial direction have more been used herein
The terms such as cage bar 6, concrete layer 7, breach 8, transverse steel 9, pressure-bearing post 10, operating space 11, but be not precluded from using other arts
The possibility of language.It is used for the purpose of more easily describing and explaining the essence of the present invention using these terms；It is construed as
The additional limitation of any one is all disagreed with spirit of the present invention.
Claims (3)
1. the tension detection method of a kind of prefabricated pile, it is characterised in that according to prefabricated pile (1) in the position of underground, cut out prefabricated
Soil layer at the top of stake (1) sets up a pressure-bearing platform (2), drawing mechanism until exposing prefabricated pile (1), in the top of prefabricated pile (1)
(3) be placed on pressure-bearing platform (2) and the axial line of the axial line of drawing mechanism (3) and prefabricated pile (1) on the same line, drawing
Stretch pressure in mechanism (3) and set a tension platform (4), some perforation are opened up on pressure-bearing platform (2), stretching reinforcing bar (5) is fixedly connected pre-
The internal axial cage bar (6) of stake (1) processed is fixedly connected through the perforation on pressure-bearing platform (2) and with tension platform (4) afterwards, starts stretching
Mechanism (3) stops drawing mechanism (3) boosting when the pressure value of drawing mechanism (3) reaches the tension standard value of prefabricated pile (1), this
When do not occur rising such as prefabricated pile (1), show that the tensile value of prefabricated pile (1) is qualified, as rising occurs in prefabricated pile (1), show
The tensile value of prefabricated pile (1) is unqualified,
The quantity of perforation on described pressure-bearing platform (2) is not less than the quantity of axial cage bar (6) on prefabricated pile (1), described drawing
Stretch reinforcing bar (5) to correspond with axial cage bar (6) and form cage construction through after perforating, described drawing mechanism (3) is located at
Inside the cage construction formed by stretching reinforcing bar (5),
When the water level for cutting out soil layer at the top of prefabricated pile (1) and underground water is higher than the top of prefabricated pile (1), in prefabricated pile (1)
Over top pours into cement or cement mortar make the soil layer at the top of prefabricated pile (1) solidify after again borehole so that the top of prefabricated pile (1)
Portion is exposed to outside soil layer,
When prefabricated pile (1) is located at below concrete layer (7), excavates concrete layer (7) and form breach (8), the inwall of breach (8)
Rough structure is dug into, the transverse steel (9) in concrete layer (7) is interrupted and makes the end of transverse steel (9) being interrupted
Extend outside breach (8) inwall in portion.
2. the tension detection method of prefabricated pile according to claim 1, it is characterised in that described drawing mechanism (3) is
Oil cylinder or jack.
3. a kind of tension detection means of the prefabricated pile of the tension detection method of prefabricated pile using described in claim 1 or 2, its
It is characterised by, including is arranged on the drawing mechanism (3) above the prefabricated pile (1) being embedded in soil layer, on described prefabricated pile (1)
Side is provided with a pressure-bearing platform (2), and drawing mechanism (3) is located on pressure-bearing platform (2), and pressure is provided with a tension platform on drawing mechanism (3)
(4) some perforation, are opened up on pressure-bearing platform (2), after stretching reinforcing bar (5) is fixedly connected with the internal axial cage bar (6) of prefabricated pile (1)
It is fixedly connected through the perforation on pressure-bearing platform (2) and with tension platform (4),
The axial line of the axial line and prefabricated pile (1) of described drawing mechanism (3) is located along the same line,
The quantity of perforation on described pressure-bearing platform (2) is not less than the quantity of axial cage bar (6) on prefabricated pile (1), described drawing
Stretch reinforcing bar (5) to correspond with axial cage bar (6) and form cage construction through after perforating, described drawing mechanism (3) is located at
Inside the cage construction formed by stretching reinforcing bar (5), there is some fixed with pressure-bearing platform (2) to connect for described pressure-bearing platform (2) bottom
The pressure-bearing post (10) connect is so that pressure-bearing platform (2) operating space formed below (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510490794.9A CN105064422B (en) | 2015-08-11 | 2015-08-11 | The tension detection means and tension detection method of prefabricated pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510490794.9A CN105064422B (en) | 2015-08-11 | 2015-08-11 | The tension detection means and tension detection method of prefabricated pile |
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| CN105064422B true CN105064422B (en) | 2018-03-13 |
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| CN106907020B (en) * | 2017-04-14 | 2022-06-14 | 金陵科技学院 | Recycling machine for building |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5765816B2 (en) * | 2012-02-27 | 2015-08-19 | 大成建設株式会社 | Pile loading test method |
| CN202809666U (en) * | 2012-09-28 | 2013-03-20 | 上海宝冶工程技术有限公司 | Anti-drawing test structure of pile top elevation under ground |
| CN103603381A (en) * | 2013-12-08 | 2014-02-26 | 中铁西北科学研究院有限公司 | Detection device and detection method for buttress single-pile vertical uplift static load test |
| CN104099955A (en) * | 2014-07-16 | 2014-10-15 | 中铁西北科学研究院有限公司 | Foundation pile vertical uplift detecting connector |
| CN205134391U (en) * | 2015-08-11 | 2016-04-06 | 周兆弟 | Tensile detection device of precast pile |
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