CN207121896U - Precast hollow uplift pile - Google Patents
Precast hollow uplift pile Download PDFInfo
- Publication number
- CN207121896U CN207121896U CN201720939022.3U CN201720939022U CN207121896U CN 207121896 U CN207121896 U CN 207121896U CN 201720939022 U CN201720939022 U CN 201720939022U CN 207121896 U CN207121896 U CN 207121896U
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- CN
- China
- Prior art keywords
- pile body
- lower pile
- jacking block
- gusset
- precast hollow
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Abstract
The utility model discloses a kind of precast hollow uplift pile, its drip irrigation device is:Including upper pile body and lower pile body, the middle part of upper pile body is provided with the upper stake holes axially penetrated through, the middle part of lower pile body is provided with the lower stake holes for axially penetrating through and being coaxially disposed with upper stake holes, the aperture of upper stake holes is gradually reduced from the bottom up, the madial wall of lower pile body is preset with some gussets, and gusset protrudes from the madial wall of lower pile body and the axis direction towards lower pile body extends.Both the intensity of precast hollow uplift pile, and convenient construction ensure that.
Description
Technical field
Uplift pile field is the utility model is related to, more particularly to a kind of precast hollow uplift pile.
Background technology
Uplift pile is widely used in big basement anti-floating, high-rise structures resistance to plucking, tidal quay platform resistance to plucking, suspension bridge
Rock anchorage base in the pile foundation and dead load lotus trial assembly of rock anchorage base, Large Ship Dock bottom plate with cable-stayed bridge etc..Prestressing force is empty
Heart uplift pile is one kind of architectural engineering uplift pile pile-type.The transmission of power is by pile body reinforcing bar between stake and basement structure（Or
End plate welded reinforcement）Completed jointly with interior filling concrete.
Traditionally, Prefabricated hollow pile inwall smoother, the adhesion strength between wadding weft variation and hollow pile inwall is low,
So reach during compared with large pulling resistance the wadding weft variation length, it is necessary to longer for design.Because wadding weft variation is longer, it is unfavorable for
Tamping, therefore the quality that concrete is filled out in filling is difficult to be guaranteed.Therefore appropriate reduce is filled out core and mixed on the premise of bearing capacity is met
Coagulate native length.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is that provide a kind of wadding weft variation resists with hollow
The strong precast hollow uplift pile of withdrawal resistance between pile pulling.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of precast hollow resistance to plucking
Stake, including upper pile body and lower pile body, the middle part of upper pile body are provided with the upper stake holes axially penetrated through, and the middle part of lower pile body, which is provided with, axially to be passed through
The lower stake holes worn and be coaxially disposed with upper stake holes, the aperture of upper stake holes are gradually reduced from the bottom up, and the madial wall of lower pile body is preset
There are some gussets, gusset protrudes from the madial wall of lower pile body and the axis direction towards lower pile body extends.
Pass through above-mentioned technical proposal, after wadding weft variation is irrigated, gusset is stretched into wadding weft variation, is made lower pile body and is filled out
Core concrete is connected as a single entity, and greatly strengthen the adhesion strength between wadding weft variation and lower pile body inwall；Meanwhile upper pile body
Upper stake holes upper end is small, and lower end is big, and equivalent to pyramidal structure, at this moment, wadding weft variation forms wedge effect with hollow uplift pile, greatly
The big withdrawal resistance enhanced between wadding weft variation and hollow uplift pile；Herein, wadding weft variation and hollow uplift pile are enhanced
Between withdrawal resistance be equivalent to substantially reduce the length of wadding weft variation on the premise of certain withdrawal resistance, so as to convenient
The vibration compacting of wadding weft variation；In addition, being divided into pile body and lower pile body two parts, it is easy to the processing of hollow uplift pile；To sum up,
Both the intensity of precast hollow uplift pile, and convenient construction ensure that.
Preferably, gusset, which protrudes from one end of lower pile body madial wall and tilted from the top of lower pile body towards lower pile body bottom, sets
Put.
Pass through above-mentioned technical proposal, gusset are obliquely installed to form hook formation, be easy to improve gusset and wadding weft variation it
Between adhesive strength.
Preferably, the angle of gusset and lower pile body axis is 60 ° ~ 75 °.
The axis angle a of Pass through above-mentioned technical proposal, gusset and lower pile body is too small, and gusset stretches into wadding weft variation radial direction
Distance is with regard to short, resistance to plucking DeGrain；When angle a is excessive, then the hook-shaped effect of gusset is with regard to weak, same resistance to plucking DeGrain.
Preferably, section of the gusset along its width is in inverted " v ".
Pass through above-mentioned technical proposal, the gusset of inverted " v " structure are easy to improve the bonding between gusset and wadding weft variation
Tight ness rating, so as to improve the adhesive strength between gusset and wadding weft variation.
Preferably, madial wall of the gusset on the same radial section of lower pile body along lower pile body is evenly distributed, under
Adjacent two gusset of pile body axial direction is in shift to install.
Pass through above-mentioned technical proposal, the gusset on same radial section make wadding weft variation circumference uniform force；Passing through will
Two neighbouring gussets are shifted to install, and the gusset in lower stake holes circumference can be allowed, which to be unlikely to overstocked, to be caused influence to fill out core to mix
The Forming Quality of soil is coagulated, but ensures to be more uniformly stressed everywhere in circumference.
Preferably, integrally formed with steel reinforcement cage in lower pile body, steel reinforcement cage is fixed in one end that gusset is defaulted in lower pile body
On.
Pass through above-mentioned technical proposal, the setting of steel reinforcement cage enhance the overall structural strength of lower pile body；Herein, link of boards
In steel reinforcement cage, all gussets and steel reinforcement cage is formed an entirety, reduce the probability of gusset stress damage, core coagulation is filled out in enhancing
Adhesion strength between native and hollow uplift pile.
Preferably, be circumferentially evenly distributed with the pile body of upper pile body axially through prestressing force pore, the pile body of lower pile body
The axial reinforcement coordinated with prestressing force pore is provided with, one end that axial reinforcement defaults in lower pile body is connected to steel reinforcement cage, upper stake
The upper end of body is provided with the bearing plate for being used for anchoring axial reinforcement.
Pass through above-mentioned technical proposal, upper pile body and lower pile body split settings, so, can be with pile body in separate machined and lower stake
Body, being fixedly connected for pile body and lower pile body then is realized being engaged by axial reinforcement and prestressing force pore；Upper pile body and
Lower pile body it is easy to process.
Preferably, the lower end outside wall of lower pile body is inserted with side jacking block, and the one end of side jacking block away from lower pile body axis is located at
In the lateral wall of lower pile body, side jacking block is provided with guiding surface close to one end of lower pile body axis, and the bottom surface of lower pile body is equipped with
Jacking block, the lower end of upper jacking block protrude from the bottom surface of lower pile body, and when upper jacking block moves upwards, upper jacking block can be driven by guiding surface
Side jacking block is set to protrude from the lateral wall of lower pile body.
Pass through above-mentioned technical proposal, when initial, side jacking block is hidden in lower pile body, and the bottom of upper jacking block protrudes from lower pile body
Bottom surface；When by the pre-buried underground layer of hollow uplift pile, bottom pan soil is touched in the bottom of upper jacking block, and upper jacking block moves upwards,
So as to driving side jacking block outwards to eject by guiding surface and insert in the soil layer of side, be easy to strengthen hollow resistance to plucking pile body with
Bonding force between circumferential soil layer.
Preferably, the one end of side jacking block away from lower pile body axis is provided with sharp portion.
Pass through above-mentioned technical proposal, the setting of sharp portion enable side jacking block more smoothly to insert in soil layer.
Brief description of the drawings
Fig. 1 is the first visual angle cross section structure diagram of embodiment, it is intended to represents the structure at axial reinforcement and gusset；
Fig. 2 is the structural representation at steel reinforcement cage in embodiment；
Fig. 3 is the second visual angle cross section structure diagram of embodiment, it is intended to represents that side jacking block and upper jacking block are in initial bit
Structure when putting；
Fig. 4 is to be pushed up in embodiment on upper jacking block, and side jacking block passes the structural representation of state.
Reference：1st, upper pile body；2nd, lower pile body；3rd, upper stake holes；4th, lower stake holes；5th, gusset；6th, steel reinforcement cage；7th, prestressing force
Pore；8th, axial reinforcement；9th, bearing plate；10th, side jacking block；11st, guiding surface；12nd, upper jacking block；13rd, sharp portion.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Precast hollow uplift pile as shown in figure 1 and 2, including upper pile body 1 and lower pile body 2, the middle part of upper pile body 1 are provided with
The upper stake holes 3 axially penetrated through, the middle part of lower pile body 2 are provided with the lower stake holes 4 for axially penetrating through and being coaxially disposed with upper stake holes 3.Upper stake
The aperture in hole 3 is gradually reduced from the bottom up；Integrally formed with steel reinforcement cage 6 in lower pile body 2.
The side of steel reinforcement cage 6 towards the lower axis direction of pile body 2 is connected with gusset 5, and gusset 5 protrudes from the inner side of lower pile body 2
Wall and towards lower pile body 2 axis direction extend.Wherein, will in order to improve the adhesive strength between gusset 5 and wadding weft variation
Gusset 5 protrude from the lower madial wall of pile body 2 one end be obliquely installed from the top of lower pile body 2 towards the lower bottom of pile body 2 to be formed it is hook-shaped
Structure；And section of the gusset 5 along its width is in inverted " v ".Herein, the angle of gusset 5 and the lower axis of pile body 2 takes 60 °.
In addition, in order to avoid the gusset 5 on lower 2 same radial section of pile body is overstocked, in lower 2 same radial section of pile body in the present embodiment
On be only uniformly distributed 4 gussets 5；It is in shift to install along adjacent two gusset 5 of the lower axial direction of pile body 2.
Referring to accompanying drawing 3 and 4, the lower end outside wall of lower pile body 2 is inserted with side jacking block 10, and side jacking block 10 is away from the lower axle of pile body 2
One end of line is provided with sharp portion 13, and during original state, sharp portion 13 is located in the lateral wall of lower pile body 2；Side jacking block 10 is close
One end of the lower axis of pile body 2 is provided with guiding surface 11.The bottom surface of lower pile body 2 is equipped with jacking block 12, and the lower end of upper jacking block 12 is convex
For the bottom surface of lower pile body 2；When upper jacking block 12 moves upwards, upper jacking block 12 can drive side jacking block 10 convex by guiding surface 11
For the lateral wall of lower pile body 2.
The course of work of side jacking block 10 and upper jacking block 12 is described below：
When initial, side jacking block 10 is hidden in lower pile body 2, and the bottom of upper jacking block 12 protrudes from the bottom surface of lower pile body 2；As general
When in the hollow pre-buried underground layer of uplift pile, bottom pan soil is touched in the bottom of upper jacking block 12, and upper jacking block 12 moves upwards, so as to pass through
Guiding surface 11 drives side jacking block 10 outwards to eject and insert in the soil layer of side, is easy to strengthen hollow resistance to plucking pile body and circumference
Bonding force between soil layer.
Described above is only exemplary embodiment of the present utility model, not for limitation protection model of the present utility model
Enclose, the scope of protection of the utility model is determined by appended claim.
Claims (9)
1. a kind of precast hollow uplift pile, including upper pile body (1) and lower pile body (2), the middle part of upper pile body (1), which is provided with, to be axially penetrated through
Upper stake holes (3), the middle part of lower pile body (2) is provided with the lower stake holes (4) for axially penetrating through and being coaxially disposed with upper stake holes (3), and it is special
Sign is：The aperture of upper stake holes (3) is gradually reduced from the bottom up, and the madial wall of lower pile body (2) is preset with some gussets (5), gusset
(5) protrude from the madial wall of lower pile body (2) and the axis direction towards lower pile body (2) extends.
2. precast hollow uplift pile according to claim 1, it is characterized in that：Gusset (5) protrudes from lower pile body (2) madial wall
One end be obliquely installed from the top of lower pile body (2) towards lower pile body (2) bottom.
3. precast hollow uplift pile according to claim 2, it is characterized in that：The angle of gusset (5) and lower pile body (2) axis
For 60 ° ~ 75 °.
4. precast hollow uplift pile according to claim 1, it is characterized in that：Gusset (5) is in along the section of its width
Inverted " v ".
5. precast hollow uplift pile according to claim 1, it is characterized in that：On lower pile body (2) same radial section
Madial wall of the gusset (5) along lower pile body (2) be evenly distributed, along adjacent two gusset (5) of lower pile body (2) axial direction in dislocation
Set.
6. precast hollow uplift pile according to claim 1, it is characterized in that：Integrally formed with steel reinforcement cage in lower pile body (2)
(6) one end that, gusset (5) is defaulted in lower pile body (2) is fixed on steel reinforcement cage (6).
7. precast hollow uplift pile according to claim 6, it is characterized in that：It is circumferential on the pile body of upper pile body (1) uniformly to divide
Be furnished with axially through prestressing force pore (7), the axial steel that the pile body of lower pile body (2) is provided with and prestressing force pore (7) coordinates
Muscle (8), one end that axial reinforcement (8) defaults in lower pile body (2) are connected to steel reinforcement cage (6), and the upper end of upper pile body (1), which is provided with, to be used for
Anchor the bearing plate (9) of axial reinforcement (8).
8. precast hollow uplift pile according to claim 1, it is characterized in that：The lower end outside wall of lower pile body (2) is inserted with
Side jacking block (10), the one end of side jacking block (10) away from lower pile body (2) axis are located in the lateral wall of lower pile body (2), side jacking block
(10) guiding surface (11) being provided with close to one end of lower pile body (2) axis, the bottom surface of lower pile body (2) is equipped with jacking block (12),
The lower end of upper jacking block (12) protrudes from the bottom surface of lower pile body (2), and when upper jacking block (12) moves upwards, upper jacking block (12) can pass through
Guiding surface (11) drives side jacking block (10) to protrude from the lateral walls of lower pile body (2).
9. precast hollow uplift pile according to claim 8, it is characterized in that：Side jacking block (10) is away from lower pile body (2) axis
One end be provided with sharp portion (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720939022.3U CN207121896U (en) | 2017-07-29 | 2017-07-29 | Precast hollow uplift pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720939022.3U CN207121896U (en) | 2017-07-29 | 2017-07-29 | Precast hollow uplift pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207121896U true CN207121896U (en) | 2018-03-20 |
Family
ID=61612972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720939022.3U Expired - Fee Related CN207121896U (en) | 2017-07-29 | 2017-07-29 | Precast hollow uplift pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207121896U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395324A (en) * | 2020-03-18 | 2020-07-10 | 广州地铁设计研究院股份有限公司 | Mixed pile construction method and mixed pile structure |
| CN111501745A (en) * | 2020-05-20 | 2020-08-07 | 温州安荷桥科技有限公司 | Screw-in type uplift pile foundation |
| CN114045822A (en) * | 2021-11-19 | 2022-02-15 | 无锡市大筑岩土技术有限公司 | Anti-pulling hollow pile and construction method thereof |
-
2017
- 2017-07-29 CN CN201720939022.3U patent/CN207121896U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395324A (en) * | 2020-03-18 | 2020-07-10 | 广州地铁设计研究院股份有限公司 | Mixed pile construction method and mixed pile structure |
| CN111501745A (en) * | 2020-05-20 | 2020-08-07 | 温州安荷桥科技有限公司 | Screw-in type uplift pile foundation |
| CN111501745B (en) * | 2020-05-20 | 2021-10-12 | 温州安荷桥科技有限公司 | Screw-in type uplift pile foundation |
| CN114045822A (en) * | 2021-11-19 | 2022-02-15 | 无锡市大筑岩土技术有限公司 | Anti-pulling hollow pile and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 Termination date: 20190729 |