CN103469788B - Movably-fabricated precast pile and production mould - Google Patents
Movably-fabricated precast pile and production mould Download PDFInfo
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- CN103469788B CN103469788B CN201310392832.8A CN201310392832A CN103469788B CN 103469788 B CN103469788 B CN 103469788B CN 201310392832 A CN201310392832 A CN 201310392832A CN 103469788 B CN103469788 B CN 103469788B
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Abstract
The invention provides a movably-fabricated precast pile and a production mould. The precast pile is a polygonal solid pile and is provided with a main bar, a hooping bar and a reinforced cage. The hooping bar wraps on the main bar in a spiral manner, and the outer cycle is welded to the main bar; the spacing of the hooping bar on a pile body in length direction is different; in the length H1 of the top of the pile body, the spacing of the hooping bar in length direction is d1; in the length H2 of the bottom of the pile body, the spacing of the hooping bar in length direction is d2; in the length direction of the pile body, one reinforcing bar is arranged at d3 intervals and is wrapped on the main bar; concrete mixed with external early strength agent in concrete mixing ratio of C60 is poured into the pile body and is maintained on the natural condition that the temperature is larger than or equal to 10 DEG C, concrete strength reaches C25 in three days, reaches C40 in seven days and reaches C500 in fourteen days. The common problems of hole collapse, necking, concrete segregation, low density, pile breaking and the like are solved.
Description
Technical field
The present invention relates to a kind of removable making concrete precast pile and making mould, more particularly, to one kind can be in difference
Concrete precast pile and making mould that occasion makes.
Background technology
At present, based on, the concrete precast pile of engineering has many kinds in market, and these pilings are broadly divided into, prestressing force
With non-prestressed two big class, prestressing force piling mainly includes, pile for prestressed pipe, pre-stress hollow square pile etc..
Chinese invention patent《A kind of concrete pre-stress hollow square pile》, publication number：CN101914914, discloses one kind
Concrete pre-stress hollow square pile, along described concrete pre-stress hollow square pile y direction, in described concrete pre-stress sky
Heart square pile center has the central through hole running through whole concrete pre-stress hollow square pile, described concrete pre-stress hollow square pile
Periphery cross section be square, the cross section of the central through hole of described concrete pre-stress hollow square pile is also square；Described mixed
Four faces of solidifying soil pre-stress hollow square pile are identical to the wall thickness of described central through hole.Along described concrete pre-stress hollow square pile
Length direction is extended with cage bar and the stirrup spiraling about main ribs, and main ribs are square layout.Described concrete is pre-
Four angles of the square cross section of the central through hole of stress hollow square pile have square stress relieving arc chord angle in size identical.
When making this pile body, cage bar and stirrup are compiled into steel reinforcement cage and are positioned in vibration moulding mould；In described steel
Square inflation sebific duct is placed or using square two-layer separator, described inflation sebific duct or two-layer separator corner have in the middle of muscle cage
The corresponding arc chord angle of described interior side's stress relieving arc chord angle with described concrete pre-stress hollow square pile；In described vibration moulding
Casting concrete in mould；Carry out vibration moulding, the laggard curing pool maintenance of molding is to prescribed strength；Release in described sebific duct
Gas or the directly described inner membrance of extraction, the demoulding, stack natural curing.
Above-mentioned pile body bearing capacity of single pile is low, and because pile body is hollow pile, the loaded area of its effective area is few, complex process,
In salt affected soil or sandstone ground corrosion-resistant, toughness is weak to be easily broken, and makes building resistant function poor performance；During making,
How using being centrifuged and taking out heart technique, cost of manufacture is high it is impossible to mobile make.
For drawbacks described above, creator of the present invention provides a kind of more perfect scheme.
Content of the invention
It is an object of the invention to provide a kind of removable making concrete precast pile and making mould, above-mentioned in order to overcome
Technological deficiency.
For achieving the above object, the present invention provides a kind of removable making concrete precast pile, and described prefabricated pile is more than one
Side shape solid pile, is provided with a cage bar, a stirrup on its pile body, to form a steel reinforcement cage, wherein,
Main ribs are arranged on described polygonal each edges and corners, and along pile body length direction arrangement；
Described stirrup is spirally wound in main ribs, its cylindrical and main ribs welding；Described stirrup is in pile body length
Spacing on direction is different, and in the length of the H1 on the top of pile body, described stirrup spacing in the longitudinal direction is d1；In stake
In the length of body bottom H2, described stirrup spacing in the longitudinal direction is d2；On pile body length direction, also set up every d3
There is a reinforcement, described reinforcing rib ring is wound in main ribs；
Pour concrete ratio in described pile body by the concrete mixing early strength agent outside C60, support under the natural conditions of temperature T >=10 DEG C
During shield, age concrete strength reaches C25 within three day, and seven day age concrete strength reaches C40, and fortnight age concrete strength reaches more than C50.
Further, after pile body installation, the bottom of described pile body arranges a concrete layer, a packed layer and an extruded layer,
Described concrete layer is volume 0.5m3C30 dry concrete, described packed layer be rubble inserts, described extruded layer
Ram the hard soil layer of ground formation for described pile body.
Further, described polygonal solid stake is an octagon pile body, and its drilling diameter D3 is between 450-550mm；Institute
The length stated between the long-diagonal of pile body is 430mm, and the effective cross section of pile body is amassed as 0.1307m2.
Further, the steel reinforcement cage internal diameter D1 that described stirrup is formed between 280-330mm, outer diameter D 2 300-350mm it
Between.
Further, each length of side d of the octagonal section of described pile body is 165mm, described steel reinforcement cage and pile body edge
The thickness h of thinnest part is 35mm.
The present invention also provides a kind of removable making mould making concrete precast pile, and described mould includes the first half module
With the second half module, it is symmetrical arranged, and when making mould, described pile body is placed between described first half module and the second half module；
After described first and second half module is installed, the upper end of described mould is provided with pouring along described pile body length direction
Fill mouth；Described pouring mouth both sides are provided with a pair of drawing device, in order to make described mold cramping pile body；
Described first half module and the second half module are connected by screw in lower end.
Further, described drawing device is included with one first connecting seat, one second connecting seat and a pull bar, described pull bar is respectively
It is arranged on described first and second connecting seat, and its two ends is respectively arranged with a nut, adjust position in pull bar for the described nut
Put, in order to the clamping force to pile body for described first and second half module that clamps or relax.
Further, described first and second half module includes multistage frame, and the middle part of each frame is provided with described joint bar hole；
Wherein, the frame in described first and second half module lower end is half section of frame, and its end is provided with one first smooth end,
One first smooth end is again provided with described second half module, the first smooth end of this two-half die links together；
The hypotenuse frame of described first and second half module upper end is provided with one second smooth end, the second of this first half module is flat
Whole end forms described pouring mouth with the second smooth end of described second half module.
Further, described first and second connecting seat is respectively welded at the upper end of described first and second half module, and described connecting seat sets
It is equipped with biside plate, between biside plate, is provided with space, described nut is arranged in this space, and draw along described between biside plate
Bar moves.
Further, described second smooth end is less than the length at the described first smooth end in the horizontal direction, to form institute
State pouring mouth.
Compared with the prior art the beneficial effects of the present invention is：The prefabricated pile of the present invention is a kind of non-prestressed high intensity
Polygonal solid prefabricated pile, has higher anti-twisting property and bearing capacity of single pile；Ultimate bearing capacity of single pile ＞ 4000KN；Improve
Shear resistance and raising shock resistance；The stirrup of different spacing is arranged on differing heights, it is possible to increase moment of torsion stress larger part
Bearing capacity, making material can also be saved simultaneously；By mixing early strength agent formula outside C60, (winter separately adds concrete ratio in the present invention
Antifreezing agent), realize pile body without steam curing, substantially increase the turnover rate of template, shorten from pile body prefabricated to scene beat
The construction period of stake；Improve net sectional area than pile tube, solve collapse hole during filling pile construction, necking down, concrete isolates, no
The common faults such as closely knit and broken pile.
Mould in the present invention is packaged type, both can produce it is also possible to prefabricated at the scene in plant layout metaplasia；Mould
End sets joint bar hole, can reserve anchor bar, and Construction of Engineering Pile finishes without broken pile head；Formwork sides set elongated pouring mouth, can
Directly insert concrete manually to be vibrated, without centrifuge；Processing technology is simple, and pile body ductility is good, corrosion-resistant, decreases traffic expense
With and loss, popularization and application threshold is low, material-saving economy.
Brief description
Fig. 1 may move the transverse sectional view making concrete precast pile for the present invention；
Fig. 2 may move the longitudinal perspective structure schematic diagram making concrete precast pile for the present invention；
Fig. 3 may move the side structure schematic view of the making mould making concrete precast pile for the present invention；
Fig. 4 may move the transverse sectional view of the making mould making concrete precast pile for the present invention；
The transversary that Fig. 5 may move the first half module of making mould making concrete precast pile for the present invention is illustrated
Figure.
Specific embodiment
Below in conjunction with the accompanying drawings, the detail technical features of the present invention are further described, to be more clearly understood from this
Invention.
The prefabricated pile of the present invention is a kind of polygonal solid prefabricated pile of non-prestressed high intensity, has higher antitorque energy
Power and bearing capacity of single pile.
Refer to shown in Fig. 1, it may move, for the present invention, the transverse sectional view making concrete precast pile, in this reality
Apply in example, this solid prefabricated pile is the pile body of an octagon, it can also be arbitrary polygonal pile body, such as regular hexagon,
Its shape, structure have the identical design in the present embodiment.
Octagon pile body 2 in the present embodiment, its drilling diameter D3 is 500mm, the longest diagonal slightly larger than described pile body 2
Line, this drilling diameter D3, can be between 450-550mm according to the specification of pile body.Between A and B of long-diagonal of described pile body 2
Length be 430mm, the effective cross section of pile body 2 is amassed as 0.1307m2, in the present invention, the increase of pile body sectional area, improves
The anti-bearing capacity of pile body.
Space between described pile body 2 and hole wall, uses 1:1 cement mortar high-pressure slip-casting filling.Steel within pile body
Muscle cage includes cage bar 3 and stirrup 1, and main ribs 3 are arranged on described octagonal edges and corners, and along pile body length direction arrangement,
To increase the intensity of polygon pile body edges and corners；In the present embodiment, each edges and corners are provided with a cage bar 3, totally 8, diameter
For 14mm；Reinforcing bar can also be arranged on polygonal rib, increase the anti-bearing capacity of pile body further.Described stirrup 1 spiral twines
It is wound in main ribs 3, it is cylindrical to be welded with cage bar 3, the steel reinforcement cage internal diameter D1 that described stirrup 3 is formed is 300mm, outer diameter D 2 is
328m, for meeting different construction demands, between 280-330mm, outer diameter D 2 is accordingly in 300- for this steel reinforcement cage internal diameter D1
Between 350mm.
Each length of side d of the octagonal section of described pile body 2 is 165mm, the thinnest part at described steel reinforcement cage and pile body edge
Thickness h be 35mm.
Refer to shown in Fig. 2, it may move the longitudinal perspective structure schematic diagram making concrete precast pile for the present invention,
In the present embodiment octagon pile body, the default pile body height H of pile body 2 is 7-14m；The upper end of pile body 2 is provided with reserved height
H4≥600mm.In the short transverse of whole pile body 2, described stirrup 1 spacing in the height direction is different, on the top of pile body 2
In the length of H1 at end, described stirrup 1 spacing in the height direction is d1；In the length of pile body bottom H2, described stirrup 1
Spacing in the height direction is d2；In the present embodiment, described length H1 is 2m, and d1 is 100mm, and d2 is 200mm.Above-mentioned
The stirrup of different spacing is arranged on differing heights, it is possible to increase the bearing capacity of moment of torsion stress larger part, making can also be saved simultaneously
Material.
The bearing course at pile end of the bottom of described pile body 2 exists, and meets H in the present embodiment3>=300mm, in pile body short transverse
On, it is additionally provided with a reinforcement 33 every d3, described reinforcement 33 is looped around in main ribs 3, and its a diameter of 12mm, in this reality
Apply in example, described d3 is 2m.
Incorporated by reference to shown in Fig. 2, after pile body 2 is installed, the bottom of described pile body 2 arranges a concrete layer 41, a packed layer
42 and an extruded layer 43, described concrete layer 41 is volume 0.5m3C30 dry concrete, described packed layer 42 be broken
Stone inserts, described extruded layer 43 rams the hard soil layer of ground formation for described pile body 2.
In the present invention, the stake end of described pile body 2 adopts 4.5 tons of post hammers, rams ground from 10 meters of free-falling hammers, will be natural
Ground is compacted by force, inserts appropriate rubble and dryness concrete, and the cumulative settling amount continuously ramming 3 times is 6～10cm, and strict control is marked
Height, after injecting appropriate neat slurry, then places precast pile, the gap cement mortar slip casting of pile body and pore-forming.
It is additionally provided with two suspension ring in the both sides of described pile body 2, be easy to level and lift described pile body.
For realizing pile body without steam curing, by mixing early strength agent formula outside C60, (winter separately adds the concrete ratio in the present invention
Antifreezing agent), under the natural conditions of temperature T >=10 DEG C during maintenance, three day age concrete strength up to C25, seven day age concrete strength up to
C40, fortnight age concrete strength is up to more than C50；Substantially increase the turnover rate of template, shorten from pile body prefabricated to scene
The construction period of piling.Pile body is polygonal solid stake, significantly provides anti-twisting property and the bearing capacity of single pile of pile foundation, single pile pole
Limit bearing capacity ＞ 4000KN.
Refer to shown in Fig. 3, it may move the side-looking structure of the making mould making concrete precast pile and shows for the present invention
It is intended to, in the present invention, described mould is packaged type, and it can make at the construction field (site), also can produce in plant layout metaplasia.Institute
State mould and include a ring flange 61, it is arranged on the two ends of described mould, it is in pile body 2 described in two side packings；Described mould two
Side is provided with some floors 63, in order to strengthen the intensity of described mould, to complete the making of pile body；Set in the upper end of described mould
Be equipped with one along described pile body length direction pouring mouth 59, can directly insert concrete and manually be vibrated, without using centrifuge, with
Convenient making pile body at the construction field (site)；Described pouring mouth 59 both sides are provided with a pair of drawing device 50, in order to make described mould folder
Tight pile body 2.
Refer to shown in Fig. 4, it may move the lateral cross section of the making mould making concrete precast pile and shows for the present invention
It is intended to, described mould includes the first half module 52 and the second half module 51, and it is symmetrical arranged, when making mould, described pile body 2 is placed in
Between described first half module 52 and the second half module 51.Described first half module 52 and the second half module 51 pass through screw 57 even in lower end
Connect；Drawing device 50 is connected by described in described first and second half module upper end.And set in the end of described first and second half module
It is equipped with longitudinal joint bar hole 56, anchor bar can be reserved, Construction of Engineering Pile finishes without broken pile head.
Described drawing device 50 is included with one first connecting seat 55 and one second connecting seat 53, also include a pull bar 54, described
Pull bar 54 is separately positioned on described first and second connecting seat, and its two ends is respectively arranged with a nut, adjusts described nut and exists
Position in pull bar 54, in order to the clamping force to pile body 2 for described first and second half module that clamps or relax；Described nut acts against institute
State the end of first and second connecting seat.
Described first and second connecting seat is respectively welded at the upper end of described first and second half module, and described connecting seat is provided with both sides
Plate, is provided with space between biside plate, and described nut is arranged in this space, and can move along described pull bar 54 between biside plate
Dynamic.
Refer to shown in Fig. 5, it may move the first half module of making mould making concrete precast pile for the present invention
The structural representation of cross section, in the present embodiment, it includes four sections of frames 522 to described first half module 52, in each frame 522
Middle part be provided with described joint bar hole 56；Wherein, the frame in described first and second half module lower end is half section of frame, and its end sets
It is equipped with one first smooth end 521, described second half module 51 is again provided with one first smooth end, the first of this two-half die is smooth
End links together.
One second smooth end 523 is provided with the hypotenuse frame of described first and second half module upper end, the of this first half module 52
Two smooth ends 523 form described pouring mouth 59 with the second smooth end of described second half module 51；Thus, described second smooth end
523 end in a lateral direction than the described first smooth end 521 away from this cross section center, that is, in the horizontal direction
Described second smooth end 523 is less than the length at the described first smooth end 521, to form described pouring mouth 59.The setting of this structure
Meter, it is to avoid collapse hole during filling pile construction, necking down, concrete isolates, the common fault such as leakiness and broken pile.
It is additionally provided with suspension ring in the die end of the present invention, be easy to vertical lifting during construction.
Above-mentioned removable moving mold, processing technology is simple, can decrease freight and loss with field fabrication, promoting should
Low with threshold, material-saving economy；The pile body ductility of the pile body making is good, corrosion-resistant, and bearing capacity of single pile is high, horizontal bending resistance, shear resistance
Can be good, shock resistance is strong.
Above reference is made with preferred embodiment, the technical characteristic and effect of the present invention is provided a brief description, this
Bright be not limited to above-mentioned embodiment, without departing from the spirit and scope of the present invention, those skilled in the art can make various changes
And modification.
Claims (6)
1. a kind of removable making concrete precast pile is it is characterised in that described prefabricated pile is a polygonal solid stake, in its stake
One cage bar, a stirrup are provided with body, to form a steel reinforcement cage, wherein,
Main ribs are arranged on described polygonal each edges and corners, and along pile body length direction arrangement；
Described stirrup is spirally wound in main ribs, its cylindrical and main ribs welding；Described stirrup is in pile body length direction
On spacing different, in the length of the H1 on the top of pile body, described stirrup spacing in the longitudinal direction is d1；At pile body bottom
In the length of end H2, described stirrup spacing in the longitudinal direction is d2；On pile body length direction, it is additionally provided with one every d3
Reinforcement, described reinforcing rib ring is wound in main ribs；
Concrete ratio is poured by the concrete mixing early strength agent outside C60, temperature T >=10 in described pile body℃Under natural conditions during maintenance,
Age concrete strength reaches C25 within three day, and seven day age concrete strength reaches C40, and fortnight age concrete strength reaches more than C50；
After pile body is installed, the bottom of described pile body arranges a concrete layer, a packed layer and an extruded layer, described concrete layer
For volume 0.5m3C30 dry concrete, described packed layer is rubble inserts, and described extruded layer is that described pile body rams
Hit the hard soil layer of ground formation；
Described polygonal solid stake is an octagon pile body, and its drilling diameter D3 is between 450-550mm；Described pile body the longest
Length between diagonal is 430mm, and the effective cross section of pile body is amassed as 0.1313m2；
, between 280-330mm, outer diameter D 2 is between 300-350mm for the steel reinforcement cage internal diameter D1 that described stirrup is formed；
Each length of side d of the octagonal section of described pile body is 165mm, the thickness of the thinnest part at described steel reinforcement cage and pile body edge
H is 35mm.
2. the removable making mould making concrete precast pile according to claim 1 is it is characterised in that described mould
Including the first half module and the second half module, it is symmetrical arranged, and when making mould, described pile body is placed in described first half module and second
Between half module；
Described first and second half module install after, the upper end of described mould be provided with one along described pile body length direction pouring mouth；
Described pouring mouth both sides are provided with a pair of drawing device, in order to make described mold cramping pile body；
Described first half module and the second half module are connected by screw in lower end.
3. the removable making mould making concrete precast pile according to claim 2 it is characterised in that described to drawing
Device includes one first connecting seat, one second connecting seat and a pull bar, and described pull bar is separately positioned on described first and second connecting seat
On, and its two ends is respectively arranged with a nut, adjusts position in pull bar for the described nut, in order to clamp or to relax described the
First, the clamping force to pile body for two half modules.
4. the removable making mould making concrete precast pile according to claim 2 is it is characterised in that described the
First, two half modules include multistage frame, and the middle part of each frame is provided with joint bar hole；
Wherein, the frame in described first and second half module lower end is half section of frame, and it is flat that described first half module end is provided with one first
Whole end, described second half module is again provided with one first smooth end, and the first smooth end of this two-half die links together；
One second smooth end, the second smooth end of this first half module are provided with the hypotenuse frame of described first and second half module upper end
Form described pouring mouth with the second smooth end of described second half module.
5. the removable making mould making concrete precast pile according to claim 3 is it is characterised in that described the
First, two connecting seats are respectively welded at the upper end of described first and second half module, and described connecting seat is provided with biside plate, between biside plate
It is provided with space, described nut is arranged in this space, and move along described pull bar between biside plate.
6. the removable making mould making concrete precast pile according to claim 4 is it is characterised in that in level side
Described second smooth end is less than the length at the described first smooth end upwards, to form described pouring mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310392832.8A CN103469788B (en) | 2013-09-03 | 2013-09-03 | Movably-fabricated precast pile and production mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310392832.8A CN103469788B (en) | 2013-09-03 | 2013-09-03 | Movably-fabricated precast pile and production mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103469788A CN103469788A (en) | 2013-12-25 |
| CN103469788B true CN103469788B (en) | 2017-02-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310392832.8A Expired - Fee Related CN103469788B (en) | 2013-09-03 | 2013-09-03 | Movably-fabricated precast pile and production mould |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674795B (en) * | 2015-01-22 | 2018-01-02 | 王继忠 | The method for prefabricating and its construction method of concrete-pile |
| CN104972550B (en) * | 2015-06-10 | 2017-06-30 | 王继忠 | The polygonal mould and preparation method of a kind of in-situ precast concrete-pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2659959Y (en) * | 2003-12-05 | 2004-12-01 | 贾燎 | Centrifugal concrete square pile and its moulding forms |
| CN2880438Y (en) * | 2005-11-03 | 2007-03-21 | 泰州海恒建材机械有限责任公司 | Centrifugal concrete pile mould |
| KR20070107310A (en) * | 2006-05-02 | 2007-11-07 | 병 균 임 | Device for blocking hollow of precast concrete pile |
| CN101560769A (en) * | 2009-05-15 | 2009-10-21 | 凌德祥 | Prestressed spun concrete square piles and mould thereof |
| CN102995628A (en) * | 2012-12-17 | 2013-03-27 | 青岛兴河建材有限公司 | Precast reinforced concrete square pile and manufacturing method thereof |
-
2013
- 2013-09-03 CN CN201310392832.8A patent/CN103469788B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2659959Y (en) * | 2003-12-05 | 2004-12-01 | 贾燎 | Centrifugal concrete square pile and its moulding forms |
| CN2880438Y (en) * | 2005-11-03 | 2007-03-21 | 泰州海恒建材机械有限责任公司 | Centrifugal concrete pile mould |
| KR20070107310A (en) * | 2006-05-02 | 2007-11-07 | 병 균 임 | Device for blocking hollow of precast concrete pile |
| CN101560769A (en) * | 2009-05-15 | 2009-10-21 | 凌德祥 | Prestressed spun concrete square piles and mould thereof |
| CN102995628A (en) * | 2012-12-17 | 2013-03-27 | 青岛兴河建材有限公司 | Precast reinforced concrete square pile and manufacturing method thereof |
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| CN103469788A (en) | 2013-12-25 |
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Effective date of registration: 20170930 Address after: 100020 Beijing City, Chaoyang District Jintai Road No. 8 Building 2, four floor 4060 Patentee after: AVIC XURI (BEIJING) GEOTECHNICAL ENGINEERING TECHNOLOGY CO.,LTD. Address before: 476000 No. 2, unit 5, No. 195, No. 1, East Democratic Road, Shangqiu District, Henan Patentee before: Hu Mingxin |
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Effective date of registration: 20200715 Address after: 476000 Building 2, west side of Xingtang Road, urban rural integration demonstration zone, Shangqiu City, Henan Province Patentee after: AVIC Xuri (Henan) Construction Technology Co.,Ltd. Address before: 100020 Chaoyang District, Beijing Jintai West Road 8, 2, four, 4060 Patentee before: AVIC XURI (BEIJING) GEOTECHNICAL ENGINEERING TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20170215 |