CN109016086A - Prestressed solid square pile arranges mould and square pile processing method - Google Patents
Prestressed solid square pile arranges mould and square pile processing method Download PDFInfo
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- CN109016086A CN109016086A CN201810921444.7A CN201810921444A CN109016086A CN 109016086 A CN109016086 A CN 109016086A CN 201810921444 A CN201810921444 A CN 201810921444A CN 109016086 A CN109016086 A CN 109016086A
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- Prior art keywords
- square pile
- bed die
- tensioning
- mould
- prestressed
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/04—Producing shaped prefabricated articles from the material by tamping or ramming
- B28B1/045—Producing shaped prefabricated articles from the material by tamping or ramming combined with vibrating or jolting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/043—Wire anchoring or tensioning means for the reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
- B28B7/42—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for heating or cooling, e.g. steam jackets, by means of treating agents acting directly on the moulding material
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides a kind of prestressed solid square pile row's mould and square pile processing methods, are related to the technical field of prestress square pile.The prestressed solid square pile arranges mould, comprising: bed die and multiple side forms, multiple side forms are arranged along the width direction interval of the bed die, form the reserved space for pouring square pile between two neighboring side form；The bed die is equipped with multiple first mounting holes；The side form is equipped with the second mounting hole；Fastener is each passed through the first mounting hole and the second mounting hole and is fixedly connected with bed die with side form.To alleviate the technical issues of mold existing in the prior art cannot produce plurality of specifications square pile.
Description
Technical field
The present invention relates to prestressed solid square pile technical fields, arrange mould and side more particularly, to a kind of prestressed solid square pile
Stake processing method.
Background technique
Precast concrete square pile refers to the square concrete stake produced using professional mold, and construction quality compares bored concrete pile
It is easier to ensure that, square concrete stake is pile foundation material important in China's civil construction foundation engineering, fluffy with construction industry
The exhibition of breaking out, the fast precast concrete square pile of speed of application are the biggish a kind of concrete products of yield in China's prefabricated components.
Existing precast concrete square pile production mould mainly includes bed die and side template, is adopted between general bed die and side template
Be connected with, side template can be inclined outwardly under the pressure of concrete in production process, demoulding when, symmetrical side template it
Between with the lifting of concrete square pile generate inside extruding force, it is not easy to demould, and be easy to cause internal injury to product
And surface imperfection crackle.Concrete density is usually at 2400kg cubic metres or so, and steel density is 7850kg cubic metres, steel
The self weight of reinforced concrete product itself is very big, and when producing prestressed concrete square pile, it is also necessary to stretching machine is used, in mould
The both ends of tool apply up to hundred tons of pressure, more require mold stiffness big, indeformable, can guarantee outside product after a number of uses
Size, bearing capacity and stiffness to mold have higher requirement, and the size of existing square pile die technology is relatively simple, and produce effect
Rate is low, is unable to satisfy the market demand.
Summary of the invention
The first object of the present invention is to provide a kind of prestressed solid square pile row mould, existing in the prior art to alleviate
Mold cannot produce the technical issues of plurality of specifications prestressed solid square pile.
Based on above-mentioned first purpose, prestressed solid square pile provided by the invention arranges mould, comprising: bed die and multiple side forms,
Multiple side forms are arranged along the width direction interval of the bed die, are formed between two neighboring side form for pouring the pre- of square pile
Spacing；The bed die is equipped with multiple first mounting holes；
The side form is equipped with the second mounting hole；
Fastener is each passed through the first mounting hole and the second mounting hole and is fixedly connected with bed die with side form.
As further technical solution, the first steam pipework, first steam are equipped in each described side form
The length direction of pipeline and the side form is arranged in parallel.
As further technical solution, the second steam pipework, second steam pipework and institute are equipped in the bed die
The length direction for stating bed die is arranged in parallel.
As further technical solution, second steam pipework is set as multiple, multiple second steam pipeworks
It is arranged in parallel.
As further technical solution, the both ends along the bed die length direction are respectively equipped with tensioning wall, and square pile passes through
Tensioning screw rod is fixedly connected with tensioning wall.
As further technical solution, tensioning component is equipped in the reserved space.
As further technical solution, the tensioning component is set as multiple, and multiple tensioning inter-modules are every setting.
As further technical solution, the tensioning component includes tensioning screw rod, connector and stretch board；
The tensioning screw rod is fixedly connected with the connector and the stretch board respectively；
The stretch board with square pile for being fixedly connected.
As further technical solution, condensate draining pipe is equipped in the bed die.
The second object of the present invention is to provide a kind of square pile processing method, to alleviate mold existing in the prior art not
The technical issues of plurality of specifications square pile can be produced.
Based on above-mentioned second purpose, square pile processing method provided by the invention, comprising the following steps:
S1: production steel reinforcement cage cuts into section, roll welding molding and both ends suit by the length of unit stake using prestressed steel bar
Connecting hoop；
S2: steel reinforcement cage is placed in the reserved space of prestressed solid square pile row's mould, the prestressed steel bar muscle of steel reinforcement cage
Tensioned at one end component is fixedly connected with tensioning wall, and the other end is fixedly connected with the vertical stretch board being inserted in reserved space；
Alternatively, the both ends of steel reinforcement cage are fixedly connected with tensioning component respectively；
S3: stretching process first positions steel reinforcement cage, keeps the initial stress of every reinforcing bar of steel reinforcement cage consistent, then pass through tensioning
Machine tensioning；
S4: concrete and molding of vibrating are injected into the reserved space of prestressed solid square pile row's mould；
S5: it rests 1 hour；
S6: using steam curing, and bed die reaches 80 degree, when side form reaches 60 degree, turns off steam, rests 1 hour.
Bring of the present invention has the beneficial effect that
Prestressed solid square pile provided by the invention arranges mould, comprising: bed die and multiple side forms, width of multiple side forms along bed die
The setting of direction interval is spent, forms the reserved space for pouring square pile between two neighboring side form；Bed die is equipped with multiple first
Mounting hole；Side form is equipped with the second mounting hole；Fastener is each passed through the first mounting hole and the second mounting hole for bed die and side form
It is fixedly connected.In use, can pour a square pile between every two side form, multiple side forms are set along the width direction interval of bed die
It sets, multiple square piles can be poured simultaneously.Bed die is equipped with multiple first mounting holes；Side form is equipped with the second mounting hole；Fastener
The first mounting hole and the second mounting hole is each passed through to be fixedly connected with bed die with side form.Due to fastener pass through the first mounting hole and
The mounting means of second mounting hole is detachable link, and bed die is equipped with multiple first mounting holes, passes through on adjusting side mould second
It is fixedly connected after mounting hole is corresponding with the first mounting hole of different location respectively with fastener, different size, difference can be poured
The square pile of thickness.Due to a mold, the square pile of different size can be processed by adjusting the position of side form, it can be disposable
More square piles are formed, shaping efficiency is high, reduces production cost, the cost of production mold has been saved, meanwhile, improve square pile
Processing efficiency.
In addition, arranging mould including the prestressed solid square pile the present invention also provides a kind of square pile processing method.Its
In, prestressed solid square pile arranges structure, working principle and the beneficial effect of mould in the beneficial effect of prestressed solid square pile row's mould
It is described in detail in fruit, details are not described herein.Above-mentioned square pile processing method and prestressed solid square pile provided by the invention
Arranging mould, possessed advantage is identical compared with the existing technology, and details are not described herein.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the structure at prestressed solid square pile provided in an embodiment of the present invention row the first first visual angle of structure of mould is shown
It is intended to；
Fig. 2 is that the structure at prestressed solid square pile provided in an embodiment of the present invention row the first second visual angle of structure of mould is shown
It is intended to；
Fig. 3 is that the structure at prestressed solid square pile provided in an embodiment of the present invention row the first structure third visual angle of mould is shown
It is intended to；
Fig. 4 is the structural schematic diagram of the cross-sectional view of Fig. 3.
Fig. 5 is the structural representation that prestressed solid square pile provided in an embodiment of the present invention arranges second of structure sectional view of mould
Figure；
Fig. 6 is the partial enlarged view in Fig. 5 at a；
Fig. 7 is the partial enlarged view in Fig. 5 at b；
Fig. 8 is the structural schematic diagram that prestressed solid square pile provided in an embodiment of the present invention arranges tensioning component in mould.
Icon: 1- bed die；2- side form；The first mounting hole of 11-；The second steam pipework of 12-；21- fastener；22-
First steam pipework；3- tensioning component；31- tensioning wall；32- tensioning screw rod；33- tensioning screw rod；34- connector；35-
Stretch board；36- condensate draining pipe；37- square pile；38- connector inserts.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", "left", "right",
"vertical", "horizontal", "inner", "outside" etc., indicated by orientation or positional relationship be orientation based on the figure or position
Relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, as occurred
Term " first ", is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance " second ".Wherein, term
" first position " and " second position " is two different positions.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The present invention provides a kind of prestressed solid square pile row's mould and square pile processing methods, and multiple embodiments pair are given below
Prestressed solid square pile row's mould provided by the invention and square pile processing method are described in detail.
Embodiment one
As shown in figures 1-8, the prestressed solid square pile that the embodiment of the present invention one provides arranges mould, comprising: bed die 1 and multiple
Side form 2, multiple side forms 2 are arranged along the width direction interval of bed die 1, are formed between two neighboring side form for pouring square pile 37
Reserved space；Bed die 1 is equipped with multiple first mounting holes 11；Side form is equipped with the second mounting hole；Fastener 21 is each passed through
Bed die is fixedly connected by one mounting hole 11 and the second mounting hole with side form.Since fastener 21 passes through the first mounting hole 11 and second
The mounting means of mounting hole is detachable link, and bed die 1 is equipped with multiple first mounting holes 11, passes through the second peace on adjusting side mould
It is fixedly connected after dress hole is corresponding with the first mounting hole 11 of different location respectively with fastener 21, different size, no can be poured
With the square pile 37 of thickness.Due to a mold, the square pile 37 of different size can be processed by adjusting the position of side form 2, it can
With more square piles 37 of disposal molding, shaping efficiency is high, reduces production cost, has saved the cost of production mold, meanwhile, it mentions
The high processing efficiency of square pile 37.
It should be noted that fastener 21, is to be fastenedly connected with and apply extremely wide a kind of machine components.Fastening
Part 21 includes: bolt, stud, screw, nut, washer, pin.
It should be noted that bed die can be bottom plate, it is made of plate.Side form can be side plate, is made of plate.
In the optinal plan of the present embodiment, the first steam pipework 22, the first steam pipework 22 are equipped in each side form 2
It is arranged in parallel with the length direction of side form 2.
First jet chimney can accelerate the drying and moulding of square pile 37, be equipped with the first steam pipework in each side form 2
22, the control that steam is passed through can be individually carried out, the steam-cured demand of different zones can be flexibly met.
In the optinal plan of the present embodiment, the second steam pipework 12, the second steam pipework 12 and bed die 1 are equipped in bed die 1
Length direction be arranged in parallel.
Second jet chimney can accelerate the drying and moulding of square pile 37.
In the optinal plan of the present embodiment, the second steam pipework is set as multiple, and multiple second steam pipeworks are arranged in parallel.
Multiple second jet chimneys can accelerate the drying and moulding of square pile 37, each second jet chimney can individually into
The steam-cured demand of different zones can be flexibly met in the control that row steam is passed through.
In the optinal plan of the present embodiment, the first steam pipework 22 is equipped with the first valve, and the first valve is for controlling first
The on and off of steam pipework 22.The control that steam is passed through can be individually carried out, the steam-cured demand of different zones can be flexibly met.
In the optinal plan of the present embodiment, the second steam pipework 12 is equipped with the second valve, and the second valve is for controlling second
The on and off of steam pipework 12.The control that steam is passed through can be individually carried out, the steam-cured demand of different zones can be flexibly met.
In the optinal plan of the present embodiment, it is respectively equipped with tensioning wall 31 along the both ends of bed die length direction, square pile 37 passes through
Tensioning screw rod 32 is fixedly connected with tensioning wall 31.
In the optinal plan of the present embodiment, tensioning component 3 is equipped in reserved space.Different length square pile 37 may be implemented
Molding.When needing the square pile 37 of a certain length, tensioning component 3 can be arranged in corresponding position, to pour out two tensioning components 3
Between length square pile 37.
In the optinal plan of the present embodiment, tensioning component 3 is set as multiple, the setting of multiple intervals of tensioning component 3.Due to opening
It draws component 3 to be set as multiple, the square pile 37 of different size, different length can be poured.Due to a mold, can process not
The square pile 37 of same specification, can be with more square piles 37 of disposal molding, and shaping efficiency is high, reduces production cost, has saved production
The cost of mold, meanwhile, improve the processing efficiency of square pile 37.
In the optinal plan of the present embodiment, tensioning component 3 includes tensioning screw rod 33, connector 34 and stretch board 35；Tensioning
Screw rod 33 is fixedly connected with connector 34 and stretch board 35 respectively；Stretch board 35 with square pile 37 for being fixedly connected.
Tensioning screw rod 33 is connected through a screw thread with connector 34 and stretch board 35 respectively, the connection type stable mechanical performance
More securely, bearing capacity is strong, when tearing open, only need to take out tensioning screw rod 33 from connector 34.
In the optinal plan of the present embodiment, connector inserts 38, screw rod and 38 spiral shell of connector inserts are equipped in connector 34
Line connection.Connector inserts 38 are connect with connector 34.
In the optinal plan of the present embodiment, condensate draining pipe 36 is equipped in the bed die.
Specifically, 37 row's mould of square pile may be sized to it is 20 meters wide, it is 64 meters long, that is, longest can complete 64 meters of sides
The molding of stake 37, width direction can be with the multiple square piles 37 of disposal molding, when needing to form the square pile 37 less than 64 meters, in side
Setting partition baffle, realizes the molding of different length square pile 37, in addition, in order to accelerate square pile between 37 two neighboring side forms 2 of stake
The first steam pipework 22 is arranged inside 37 side form 2 of square pile, and the second steam pipework 12 is arranged in bed die 1 for 37 drying and moulding,
Each first steam pipework 22 and the second steam pipework 12 can individually carry out the control that steam is passed through, and can flexibly expire
The steam-cured demand of sufficient different zones.
Embodiment two
The embodiment of the present invention two additionally provides a kind of square pile processing method, including 37 row's mould of square pile described in embodiment one.
Wherein, structure, working principle and the beneficial effect of 37 row's mould of square pile in the beneficial effect of 37 row's mould of square pile into
Detailed description is gone, details are not described herein.Above-mentioned 37 system of processing of square pile and 37 row's mould of square pile provided by the invention are relative to existing
There is advantage possessed by technology identical, details are not described herein.
Embodiment three
The embodiment of the present invention three additionally provides a kind of prestressed solid square pile row mould processing method, comprising the following steps:
S1: production steel reinforcement cage cuts into section, roll welding molding and both ends suit by the length of unit stake using prestressed steel bar
Connecting hoop；
S2: steel reinforcement cage is placed in the reserved space of square pile row's mould, the prestressed steel bar muscle tensioned at one end group of steel reinforcement cage
Part is fixedly connected with tensioning wall, and the other end is fixedly connected with the vertical stretch board being inserted in reserved space；
Alternatively, the both ends of steel reinforcement cage are fixedly connected with tensioning component respectively；
S3: stretching process first positions steel reinforcement cage, keeps the initial stress of every reinforcing bar of steel reinforcement cage consistent, then pass through tensioning
Machine tensioning；
S4: concrete and molding of vibrating are injected into the reserved space of square pile row's mould；
S5: it rests 1 hour；
S6: using steam curing, and bed die reaches 80 degree, when side form reaches 60 degree, turns off steam, rests 1 hour.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is of the invention
Within the scope of and form different embodiments.For example, embodiment claimed is appointed in claims above
Meaning one of can in any combination mode come using.The information disclosed in the background technology section is intended only to deepen to this
The understanding of the general background technology of invention, and be not construed as recognizing or implying in any form that information composition has been ability
The prior art well known to field technique personnel.
Claims (10)
1. a kind of prestressed solid square pile arranges mould characterized by comprising bed die and multiple side forms, multiple side forms are along institute
The width direction interval setting of bed die is stated, forms the reserved space for pouring square pile between two neighboring side form；
The bed die is equipped with multiple first mounting holes；
The side form is equipped with the second mounting hole；
Fastener is each passed through the first mounting hole and the second mounting hole and is fixedly connected with bed die with side form.
2. prestressed solid square pile according to claim 1 arranges mould, which is characterized in that be equipped in each described side form
The length direction of first steam pipework, first steam pipework and the side form is arranged in parallel.
3. prestressed solid square pile according to claim 1 arranges mould, which is characterized in that be equipped with the second steam in the bed die
The length direction of pipeline, second steam pipework and the bed die is arranged in parallel.
4. prestressed solid square pile according to claim 3 arranges mould, which is characterized in that second steam pipework is set as
Multiple, multiple second steam pipeworks are arranged in parallel.
5. prestressed solid square pile according to claim 1-4 arranges mould, which is characterized in that long along the bed die
The both ends in degree direction are respectively equipped with tensioning wall, and square pile is fixedly connected by tensioning screw rod with tensioning wall.
6. prestressed solid square pile according to claim 5 arranges mould, which is characterized in that be equipped with tensioning in the reserved space
Component.
7. prestressed solid square pile according to claim 6 arranges mould, which is characterized in that the tensioning component is set as more
A, multiple tensioning inter-modules are every setting.
8. prestressed solid square pile according to claim 6 or 7 arranges mould, which is characterized in that the tensioning component includes
Draw screw rod, connector and stretch board；
The tensioning screw rod is fixedly connected with the connector and the stretch board respectively；
The stretch board with square pile for being fixedly connected.
9. prestressed solid square pile according to claim 8 arranges mould, which is characterized in that be equipped with condensed water in the bed die and arrange
Water pipe.
10. a kind of square pile processing method, which comprises the following steps:
S1: production steel reinforcement cage cuts into section, roll welding molding and both ends suit connection by the length of unit stake using prestressed steel bar
Hoop；
S2: steel reinforcement cage is placed in the reserved space of prestressed solid square pile row's mould, prestressed steel bar muscle one end of steel reinforcement cage
Tensioning component is fixedly connected with tensioning wall, and the other end is fixedly connected with the vertical stretch board being inserted in reserved space；
Alternatively, the both ends of steel reinforcement cage are fixedly connected with tensioning component respectively；
S3: stretching process first positions steel reinforcement cage, keeps the initial stress of every reinforcing bar of steel reinforcement cage consistent, then passes through stretching machine
It draws；
S4: concrete and molding of vibrating are injected into the reserved space of prestressed solid square pile row's mould；
S5: it rests 1 hour；
S6: using steam curing, and bed die reaches 80 degree, when side form reaches 60 degree, turns off steam, rests 1 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810921444.7A CN109016086A (en) | 2018-08-15 | 2018-08-15 | Prestressed solid square pile arranges mould and square pile processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810921444.7A CN109016086A (en) | 2018-08-15 | 2018-08-15 | Prestressed solid square pile arranges mould and square pile processing method |
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| Publication Number | Publication Date |
|---|---|
| CN109016086A true CN109016086A (en) | 2018-12-18 |
Family
ID=64634028
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810921444.7A Pending CN109016086A (en) | 2018-08-15 | 2018-08-15 | Prestressed solid square pile arranges mould and square pile processing method |
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| CN111923226A (en) * | 2020-06-02 | 2020-11-13 | 广东永基建筑基础股份有限公司 | Flat pile production method |
| CN113290692A (en) * | 2021-07-02 | 2021-08-24 | 中交一公局第二工程有限公司 | Simple tensioning method for prefabricated part steel bar |
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| CN113290692A (en) * | 2021-07-02 | 2021-08-24 | 中交一公局第二工程有限公司 | Simple tensioning method for prefabricated part steel bar |
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