CN109183782A - The anti-splitting prefabricated concrete pipe pile of one kind and production method - Google Patents
The anti-splitting prefabricated concrete pipe pile of one kind and production method Download PDFInfo
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- CN109183782A CN109183782A CN201811047906.3A CN201811047906A CN109183782A CN 109183782 A CN109183782 A CN 109183782A CN 201811047906 A CN201811047906 A CN 201811047906A CN 109183782 A CN109183782 A CN 109183782A
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- 239000004567 concrete Substances 0.000 title claims abstract description 109
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 36
- 239000010959 steel Substances 0.000 claims description 36
- 230000002787 reinforcement Effects 0.000 claims description 34
- 238000004080 punching Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 claims description 8
- 238000005119 centrifugation Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000010025 steaming Methods 0.000 claims description 6
- 230000015271 coagulation Effects 0.000 claims description 5
- 238000005345 coagulation Methods 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 3
- 239000011796 hollow space material Substances 0.000 claims description 3
- 239000003129 oil well Substances 0.000 claims description 3
- 239000011513 prestressed concrete Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000010412 perfusion Effects 0.000 claims 1
- 230000013011 mating Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
-
- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
-
- 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
- B28B23/10—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 the shaping being effected by centrifugal or rotational moulding
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of anti-splitting prefabricated concrete pipe pile and production methods, including the first concrete tubular pile, second concrete tubular pile, fixed plate, connecting plate, circular hole, fastening bolt, support plate, first positioning column, second positioning column, adjusting nut, first positioning hole and second location hole, first concrete tubular pile top is provided with the second concrete tubular pile, first concrete tubular pile and the second concrete tubular pile junction are provided with fixed plate, structure of the invention is scientific and reasonable, it is safe and convenient to use, first positioning hole and the first positioning column are cooperatively connected, second location hole and the second positioning column are cooperatively connected, it is attached the first concrete tubular pile with the second concrete tubular pile, the first concrete tubular pile is connect closely with the second concrete tubular pile with adjusting nut mating connection by fastening bolt, preferably it is convenient for two concrete Spliced between tubular pole, while improving the anti-fissibility of concrete tubular pile by production method.
Description
Technical field
The present invention relates to concrete tubular pile technical field, specially a kind of anti-splitting prefabricated concrete pipe pile and production side
Method.
Background technique
Concrete tubular pile can be divided into post-tensioned prestressing stake and pretensioned-prestressed tube pile, pretensioned-prestressed tube pile
Be using a kind of hollow cylinder elongate concrete prefabricated components made of pretensioned prestressing technique and centrifugal casting, mainly by
The composition such as cylinder-shaped pile body, end plate and steel hoop.
But not only structure is complicated for concrete tubular pile currently on the market, but also has a single function, existing concrete tubular pile
It in technology, is not easy to connect between concrete tubular pile, while concrete tubular pile does not have good anti-fissibility.
Summary of the invention
The purpose of the present invention is to provide a kind of anti-splitting prefabricated concrete pipe pile and production methods, to solve above-mentioned background
The problem of being proposed in technology.
In order to solve the above technical problem, the present invention provides following technical solutions: a kind of anti-splitting prefabricated concrete pipe pile,
Including the first concrete tubular pile, the second concrete tubular pile, fixed plate, connecting plate, circular hole, fastening bolt, support plate, the first positioning
Column, the second positioning column, adjusting nut, first positioning hole and second location hole, first concrete tubular pile, first coagulation
Native tubular pole top is provided with the second concrete tubular pile, and first concrete tubular pile is provided with the second concrete tubular pile junction
Fixed plate, is equipped with support plate on the inside of the fixed plate, and support plate top two sides are mounted on the first positioning column, and described the
Two concrete tubular pile bottoms offer first positioning hole, and the first positioning column and first positioning hole are cooperatively connected, and described first is mixed
Solidifying soil tubular pole top offers second location hole, and the connecting plate bottom is equipped with the second positioning column, second positioning column with
Second location hole is cooperatively connected, and the fixed plate two sides are mounted on connecting plate, offer circular hole on the outside of the connecting plate, described
Circular hole is internally provided with fastening bolt, is socketed with adjusting nut on the outside of the fastening bolt.
A kind of anti-splitting prefabricated concrete pipe pile production method includes the following steps: step 1, steel reinforcement cage binding；Step
Two, enter mould；Step 3, filling concrete；Step 4, tensioning；Step 5, centrifugal forming；Step 6, steam press maintenance；Step 7,
Demoulding；
In the step one, treated main reinforcement is fitted on the disk of binding machine stretched in trolley, trolley can be
It is moved on lateral guide rail, adapts to the needs of the long steel reinforcement cage of piles with different, stirrup is placed on the disk in binding machine, and trolley is with solid
Fixed speed moves, and then to be constantly wound steel reinforcement cage in main reinforcement, main reinforcement and stirrup are welded the reinforcing bar on disk with electrical pads,
Without binding.
In the step two, after the completion of steel reinforcement cage binding, steel reinforcement cage is hung in prefabricated molds using overhead crane,
Steel reinforcement cage both ends are equipped with nut, and after steel reinforcement cage is hung in punching block, both ends are secured to using the steel plate of annular, are arranged on steel plate
There is bolt corresponding with nut, the setting of stretching end and the form of the other end are different, and the gap in punching block is tensioning sky
Gap, after steel reinforcement cage is installed, it is medium to be filled that overhead crane is hung in filling concrete area.
In the step three, the position of steel reinforcement cage is placed and should not be deviated, and fix stably, filling concrete area has
Corresponding oil well cracking acid pumping truck is run on station side rails, and the concrete amount of a pile is controlled in a vehicle, and trolley is hollow
It is run in half die sinking, the concrete that lower part is exposed gradually fills in model, after the completion of filling concrete, around punching block
It prevents water in concrete from losing in centrifugal process around a circle cotton thread, and hangs the punching block for coming the other half, closed.
In the step four, specific machine is sent at tubular piles stretching end and carries out tensioning, sequence of PR tension
Symmetrical tensioning is answered, when both ends simultaneous tension, two ends must not loosen simultaneously, first anchor at one end, then supply tensioning in the other end
It being anchored after power, both ends stretching force should be consistent, and two end stretch values should meet design code requirement after being added, when repeatedly stretching,
It answers grading tension, after intermediate anchoring temporarilies at different levels, meter reading and is further continued for tensioning after measuring stretch value again, stretch value is avoided to measure
The Specific amounts of accumulated error, tensioning is determined according to different requirements.
In the step five, the good tubular pole of tensioning is put into eccentric groove and is centrifuged, centrifugal action by a slow speed, it is low
Speed, middling speed, high speed four-stage carry out, and to guarantee concrete compaction, the time of centrifugation is controlled in 15min or so, general basis
Centrifugation rate determines that the hollow space of doughnut-shaped steel plate will use plantation rubber closure, is convenient for centrifugal forming, and can extract after molding
Extra slurries guarantee smooth inside stake everywhere.
In the step six, T-PC, T-PTC centrifugal pile through centrifugal forming should use high-pressure steaming and cultivating, T-PHC centrifugation
Stake should use normal pressure steam-cured and high-pressure steaming and cultivating, steam-cured pond are the big pond that concrete is built into, and the tubular pole after centrifugal forming is put into
In pond, concrete cover is covered, steam press maintenance can be carried out, after steam curing in 16-20 hours, intensity is supported up to normal
The 70%-80% of 28 days intensity under the conditions of shield.
It is described to recall punching block after reaching the steam pressure time in the step seven, the fixing bolt for two sides of dismantling,
Model can be dismantled by overhead crane, manufactured prestressed concrete pipe pile stacking in heaps, wait train agreement to transport to and apply
Work scene
According to the above technical scheme, rubber pad is provided on the inside of the fixed plate, the rubber pad and fixed plate pass through seccotine
Bonding.
According to the above technical scheme, the fixed plate outside opens up fluted, and the inside grooves are provided with reinforcing rib.
According to the above technical scheme, first positioning column is installed on inside first positioning hole, and the first positioning column and
A positioning hole is interference fit.
According to the above technical scheme, in the steam press maintenance temperature is 175 DEG C, air pressure is 8 atmospheric pressure still kettle into
Row.
According to the above technical scheme, because of the concrete of holding identical weight when the filling concrete is filling.
According to the above technical scheme, connect two sides punching block closely by fixing bolt after the completion of the punching block closing
It connects.
Compared with prior art, the beneficial effects obtained by the present invention are as follows being: structure of the invention is scientific and reasonable, uses secure side
Just, first positioning hole and the first positioning column are cooperatively connected, second location hole and the second positioning column are cooperatively connected, and make the first coagulation
Native tubular pole is attached with the second concrete tubular pile, makes the first concrete tubular pile by fastening bolt and adjusting nut mating connection
It is closely connect with the second concrete tubular pile, preferably convenient for being spliced between two concrete tubular piles, while passing through production method
Improve the anti-fissibility of concrete tubular pile.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is entirety perspective view of the invention；
Fig. 2 is support plate mounting structure schematic diagram of the invention；
Fig. 3 is first positioning hole mounting structure schematic diagram of the invention；
Fig. 4 is overall flow structural schematic diagram of the invention；
In figure: 1, the first concrete tubular pile；2, the second concrete tubular pile；3, fixed plate；4, connecting plate；5, circular hole；6, spiral shell is fastened
Bolt；7, support plate；8, the first positioning column；9, the second positioning column；10, adjusting nut；11, first positioning hole；12, the second positioning
Hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of anti-splitting prefabricated concrete pipe pile, including first
Concrete tubular pile 1, the second concrete tubular pile 2, fixed plate 3, connecting plate 4, circular hole 5, fastening bolt 6, support plate 7, first position
Column 8, the second positioning column 9, adjusting nut 10, first positioning hole 11 and second location hole 12, the first concrete tubular pile 1, first is mixed
1 top of solidifying soil tubular pole is provided with the second concrete tubular pile 2, and the first concrete tubular pile 1 and 2 junction of the second concrete tubular pile are arranged
There is fixed plate 3, support plate 7 is installed on the inside of fixed plate 3,7 top two sides of support plate are mounted on the first positioning column 8, and second is mixed
2 bottom of solidifying soil tubular pole offers first positioning hole 11, and the first positioning column 8 is cooperatively connected with first positioning hole 11, the first coagulation
Native 1 top of tubular pole offers second location hole 12, and 4 bottom of connecting plate is equipped with the second positioning column 9, the second positioning column 9 and second
Location hole 12 is cooperatively connected, and 3 two sides of fixed plate are mounted on connecting plate 4, offers circular hole 5 on the outside of connecting plate 4, inside circular hole 5
It is provided with fastening bolt 6, adjusting nut 10 is socketed on the outside of fastening bolt 6.
Referring to Fig. 4, the present invention provides a kind of technical solution: a kind of anti-splitting prefabricated concrete pipe pile production method, packet
Include following steps: step 1, steel reinforcement cage binding；Step 2 enters mould；Step 3, filling concrete；Step 4, tensioning；Step
Five, centrifugal forming；Step 6, steam press maintenance；Step 7, demoulding；
In step 1, treated main reinforcement is fitted on the disk of binding machine stretched in trolley, trolley can be in transverse direction
It is moved on guide rail, adapts to the needs of the long steel reinforcement cage of piles with different, stirrup is placed on the disk in binding machine, and trolley is with fixed speed
Degree moves, and the reinforcing bar on disk in main reinforcement then to be constantly wound steel reinforcement cage, and main reinforcement and stirrup are welded with electrical pads, without tying up
It pricks.
In step 2, after the completion of steel reinforcement cage binding, steel reinforcement cage is hung in prefabricated molds using overhead crane, steel reinforcement cage
Both ends are equipped with nut, and after steel reinforcement cage is hung in punching block, both ends are secured to using the steel plate of annular, are provided on steel plate and spiral shell
The corresponding bolt of cap, the setting of stretching end and the form of the other end are different, and the gap in punching block is tensioning gap, work as steel
After muscle cage is installed, it is medium to be filled that overhead crane is hung in filling concrete area.
In step 3, the position of steel reinforcement cage is placed and should not be deviated, and fix stably, and filling concrete area has corresponding
Oil well cracking acid pumping truck is run on station side rails, and the concrete amount of a pile is controlled in a vehicle, and trolley is in half hollow die sinking
Upper operation, the concrete that lower part is exposed gradually fills in model, after the completion of filling concrete, around one around punching block
Circle cotton thread prevents water in concrete from losing in centrifugal process, and hangs the punching block for coming the other half, is closed.
In step 4, specific machine is sent at tubular piles stretching end and carries out tensioning, sequence of PR tension should be symmetrical
Tensioning, when both ends simultaneous tension, two ends must not loosen simultaneously, first anchor at one end, then in the other end to supply stretching force laggard
Row anchoring, both ends stretching force should be consistent, and two end stretch values should meet design code requirement after being added, and when repeatedly stretching, should be classified
Tensioning after intermediate anchoring temporarilies at different levels, meter reading and is further continued for tensioning after measuring stretch value again, avoids stretch value from measuring accumulation and miss
The Specific amounts of difference, tensioning is determined according to different requirements.
In step 5, the good tubular pole of tensioning is put into eccentric groove and is centrifuged, centrifugal action by a slow speed, low speed, in
Speed, high speed four-stage carry out, and to guarantee concrete compaction, the time of centrifugation is controlled in 15min or so, generally according to centrifugation speed
Rate determine, the hollow space of doughnut-shaped steel plate will use plantation rubber closure, be convenient for centrifugal forming, and when form after can extract it is more everywhere
Remaining slurries guarantee smooth inside stake.
In step 6, T-PC, T-PTC centrifugal pile through centrifugal forming should use high-pressure steaming and cultivating, and T-PHC centrifugal pile should be adopted
With normal pressure is steam-cured and high-pressure steaming and cultivating, steam-cured pond is the big pond that concrete is built into, and the tubular pole after centrifugal forming is put into pond,
Concrete cover is covered, steam press maintenance can be carried out, after steam curing in 16-20 hours, intensity is up to normal curing condition
The 70%-80% of lower 28 days intensity.
In step 7, after reaching the steam pressure time, punching block is recalled, the fixing bolt for two sides of dismantling is hung by truss
Vehicle can dismantle model, manufactured prestressed concrete pipe pile stacking in heaps, and train agreement is waited to transport to construction site
Wherein, it is provided with rubber pad, rubber pad and fixed plate 3 on the inside of fixed plate 3 by strength glue sticking, preferably increases and fixes
3 internal friction of plate, makes to connect even closer；Open up fluted on the outside of fixed plate 3, inside grooves are provided with reinforcing rib, more preferably
3 intensity of enhancing fixed plate, prolong its service life；First positioning column 8 is installed on inside first positioning hole 11, and the first positioning
Column 8 and first positioning hole 11 are interference fit, connect the first positioning column 8 closely with first positioning hole 11；It steams
It presses in the still kettle that curing temperature is 175 DEG C, air pressure is 8 atmospheric pressure and carries out；Because keeping identical heavy when filling concrete is filling
The concrete of amount；Two sides punching block is connected closely by fixing bolt after the completion of punching block closing.
Based on above-mentioned, it is an advantage of the current invention that of the invention, 1 top of the first concrete tubular pile is provided with the second concrete
Tubular pole 2, the first concrete tubular pile 1 and 2 junction of the second concrete tubular pile are provided with fixed plate 3, and branch is equipped on the inside of fixed plate 3
Fagging 7,7 top two sides of support plate are mounted on the first positioning column 8, and 2 bottom of the second concrete tubular pile offers first positioning hole
11, and the first positioning column 8 is cooperatively connected with first positioning hole 11,1 top of the first concrete tubular pile offers second location hole 12,
4 bottom of connecting plate is equipped with the second positioning column 9, and the second positioning column 9 is cooperatively connected with second location hole 12, by first positioning hole
11 and first positioning column 8 be cooperatively connected, second location hole 12 and the second positioning column 9 are cooperatively connected, make the first concrete tubular pile 1 and
Second concrete tubular pile 2 is attached, by fastening bolt 6 and the mating connection of adjusting nut 10 make the first concrete tubular pile 1 with
The second closely connection of concrete tubular pile 2.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of anti-splitting prefabricated concrete pipe pile, including the first concrete tubular pile (1), the second concrete tubular pile (2), fixed plate
(3), connecting plate (4), circular hole (5), fastening bolt (6), support plate (7), the first positioning column (8), the second positioning column (9), adjusting
Nut (10), first positioning hole (11) and second location hole (12), it is characterised in that: first concrete tubular pile (1) is described
First concrete tubular pile (1) top is provided with the second concrete tubular pile (2), first concrete tubular pile (1) and the second coagulation
Native tubular pole (2) junction is provided with fixed plate (3), is equipped with support plate (7) on the inside of the fixed plate (3), the support plate (7)
Top two sides are mounted on the first positioning column (8), and the second concrete tubular pile (2) bottom offers first positioning hole (11),
And first positioning column (8) and first positioning hole (11) be cooperatively connected, it is fixed that the first concrete tubular pile (1) top offers second
Position hole (12), connecting plate (4) bottom are equipped with the second positioning column (9), second positioning column (9) and second location hole
(12) it is cooperatively connected, fixed plate (3) two sides are mounted on connecting plate (4), offer circular hole on the outside of the connecting plate (4)
(5), the circular hole (5) is internally provided with fastening bolt (6), is socketed with adjusting nut (10) on the outside of the fastening bolt (6).
2. a kind of anti-splitting prefabricated concrete pipe pile production method includes the following steps: step 1, steel reinforcement cage binding；Step 2,
Enter mould；Step 3, filling concrete；Step 4, tensioning；Step 5, centrifugal forming；Step 6, steam press maintenance；Step 7 takes off
Mould；It is characterized by:
In the step one, treated main reinforcement is fitted on the disk of binding machine stretched in trolley, trolley can be
It is moved on lateral guide rail, adapts to the needs of the long steel reinforcement cage of piles with different, stirrup is placed on the disk in binding machine, and trolley is with solid
Fixed speed moves, and then to be constantly wound steel reinforcement cage in main reinforcement, main reinforcement and stirrup are welded the reinforcing bar on disk with electrical pads,
Without binding；
In the step two, after the completion of steel reinforcement cage binding, steel reinforcement cage is hung in prefabricated molds using overhead crane, reinforcing bar
Cage both ends are equipped with nut, after steel reinforcement cage is hung in punching block, both ends using annular steel plate be secured to, be provided on steel plate with
The corresponding bolt of nut, the setting of stretching end and the form of the other end are different, and the gap in punching block is tensioning gap, when
After steel reinforcement cage is installed, it is medium to be filled that overhead crane is hung in filling concrete area；
In the step three, the position of steel reinforcement cage is placed and should not be deviated, and fix stably, and filling concrete area has corresponding
Oil well cracking acid pumping truck, run on station side rails, the concrete amount of a pile is controlled in a vehicle, and trolley is hollow half-open
It is run on mould, the concrete that lower part is exposed gradually fills in model, after the completion of filling concrete, surround around punching block
One circle cotton thread prevents water in concrete from losing in centrifugal process, and hangs the punching block for coming the other half, is closed；
In the step four, specific machine is sent at tubular piles stretching end and carries out tensioning, sequence of PR tension reply
Claim tensioning, when both ends simultaneous tension, two ends must not loosen simultaneously, first anchor at one end, then after the other end supplies stretching force
It is anchored, both ends stretching force should be consistent, and two end stretch values should meet design code requirement after being added, and when repeatedly stretching, should divide
Grade tensioning after intermediate anchoring temporarilies at different levels, meter reading and is further continued for tensioning after measuring stretch value again, stretch value is avoided to measure accumulation
The Specific amounts of error, tensioning is determined according to different requirements；
In the step five, the good tubular pole of tensioning is put into eccentric groove and is centrifuged, centrifugal action by a slow speed, low speed,
Middling speed, high speed four-stage carry out, and to guarantee concrete compaction, the time of centrifugation is controlled in 15min or so, generally according to centrifugation
Rate determines that the hollow space of doughnut-shaped steel plate will use plantation rubber closure, is convenient for centrifugal forming, and can extract everywhere after molding
Extra slurries guarantee smooth inside stake；
In the step six, T-PC, T-PTC centrifugal pile through centrifugal forming should use high-pressure steaming and cultivating, and T-PHC centrifugal pile is answered
Using normal pressure is steam-cured and high-pressure steaming and cultivating, steam-cured pond is the big pond that concrete is built into, and the tubular pole after centrifugal forming is put into pond
In, concrete cover is covered, steam press maintenance can be carried out, after steam curing in 16-20 hours, intensity is up to normal maintenance item
The 70%-80% of the lower 28 days intensity of part；
In the step seven, after reaching the steam pressure time, punching block is recalled, the fixing bolt for two sides of dismantling passes through truss
Crane can dismantle model, manufactured prestressed concrete pipe pile stacking in heaps, and train agreement is waited to transport to construction site.
3. a kind of anti-splitting prefabricated concrete pipe pile according to claim 1, it is characterised in that: in the fixed plate (3)
Side is provided with rubber pad, and the rubber pad and fixed plate (3) pass through strength glue sticking.
4. a kind of anti-splitting prefabricated concrete pipe pile according to claim 1, it is characterised in that: the fixed plate (3) is outside
Side opens up fluted, and the inside grooves are provided with reinforcing rib.
5. a kind of anti-splitting prefabricated concrete pipe pile according to claim 1, it is characterised in that: first positioning column
(8) it is internal to be installed on first positioning hole (11), and the first positioning column (8) and first positioning hole (11) are interference fit.
6. the anti-splitting prefabricated concrete pipe pile production method of one kind according to claim 2, it is characterised in that: the steam pressure
It is carried out in the still kettle that curing temperature is 175 DEG C, air pressure is 8 atmospheric pressure.
7. the anti-splitting prefabricated concrete pipe pile production method of one kind according to claim 2, it is characterised in that: the coagulation
Because of the concrete of holding identical weight when soil perfusion is filling.
8. the anti-splitting prefabricated concrete pipe pile production method of one kind according to claim 2, it is characterised in that: the punching block
Two sides punching block is connected closely by fixing bolt after the completion of closing.
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| CN114150598A (en) * | 2021-12-09 | 2022-03-08 | 湖北省路桥集团有限公司 | Traffic sign post and construction method thereof |
| CN114482032A (en) * | 2021-11-25 | 2022-05-13 | 福建大力新型建材科技有限公司 | Combined prestressed concrete thin-wall pipe pile |
| CN115647126A (en) * | 2022-10-17 | 2023-01-31 | 福建宝丰管桩有限公司 | Automatic detection and repair device for deformation point position of inner wall of prestressed pipe pile mould cylinder |
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