CN109056714A - The quick spreading end device of expansion and its construction method in prestressed concrete pipe pile - Google Patents
The quick spreading end device of expansion and its construction method in prestressed concrete pipe pile Download PDFInfo
- Publication number
- CN109056714A CN109056714A CN201810775103.3A CN201810775103A CN109056714A CN 109056714 A CN109056714 A CN 109056714A CN 201810775103 A CN201810775103 A CN 201810775103A CN 109056714 A CN109056714 A CN 109056714A
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- China
- Prior art keywords
- preformed hole
- pile body
- expansion sleeve
- spreading
- fastening nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003892 spreading Methods 0.000 title claims abstract description 52
- 230000007480 spreading Effects 0.000 title claims abstract description 52
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 25
- 239000003292 glue Substances 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 238000002513 implantation Methods 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000007586 pull-out test Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E02D5/52—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
-
- 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
-
- 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
-
- 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
- E02D5/58—Prestressed concrete piles
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses quick spreading end device is expanded in a kind of prestressed concrete pipe pile, including long bolt, opening expansion sleeve, elastic washer and fastening nut, the middle upper section of long bolt is smooth section, end is expanded for flaring in the upper end of smooth section, the lower section of long bolt is thread segment, fastening nut is sleeved on thread segment, opening expansion sleeve is sleeved in smooth section and the top tube wall for the expansion sleeve that is open is provided with longitudinal fracture shaped opening, and elastic washer is located between the lower end and fastening nut of opening expansion sleeve.The present invention has mainly used interior expansion bolt principle and bar planting spreading principle, under the premise of guaranteeing spreading quality, pile body spreading construction efficiency not only can be improved, and it is not influenced by rain and snow weather, and due to the configuration of the present invention is simple, connection is reliable, implantation steel part is saved, to reduce single pile spreading construction cost.In addition, the present invention can reduce inspection lot hidden danger of quality by the pull-out test to end spreading test specimen before construction.
Description
Technical field
The present invention relates in a kind of prestressed concrete pipe pile extending device more particularly to a kind of prestressed concrete pipe pile
Quick spreading end device is expanded, the construction party of the quick spreading end device of expansion in the prestressed concrete pipe pile is further related to
Method.
Background technique
Existing prestressed concrete pipe pile spreading is generally using welding and mechanical two kinds of connection types: as shown in Figure 1, welding
Connection type be welded between upper pile body 1,2 end pre-embedded steel slab 3,4 of lower pile body, steel plate 3,4, meanwhile, be anchored at upper and lower stake
Intracorporal reinforcing bar pier nose 5,6 is fastened in the preformed hole 7 of steel plate 3,4 connecting portions.But since welding procedure is by holding time
And the influence of sleet weather, tubular pole spreading quality and constructing aims all various degrees it is impaired.Specifically, using weldering
When connecing technique spreading tubular pole, each welding point generally requires flower welding in about 20 minutes and completes, and then waits weld seams natural cooling 8 again
After minute, injection or piling could be continued, therefore construction efficiency is low.In actual operation, also have and not construct as required
Situation continues to injection pile sinking in two, three minutes that is, after being soldered, and will form connector quenching, and pile body is difficult to again after squeezing into soil layer
It checks and finds its drawback.When connector is in Soft Soil Layer or mud, high temperature weld seam meets water and causes to damage when embrittlement, slightly bias
Bad connector, many engineerings cause hidden danger because weld quality is bad.
In order to improve processing quality, in view of the foregoing drawbacks, the area such as Guangdong, Fujian has launched the place of mechanical spreading
Standard." Guangdong DBJ15-63-2008 prestressed concrete pipe pile mechanical meshing connector regulation ", " Fujian DBJ13-58-2004 is pre-
The construction of prestressed concrete tubular pole machinery fast connecting joint and control of acceptance " all define mechanical spreading technique requirement and method.
It is using mechanical spreading mode as shown in Figure 2, steel pin plate 8 is toothed sliding block, it is made of Fine Steel Casting iron,
Outside wall surface is with the fastening of compression spring 9.When tubular pole is plugged into, first two piece-root grafting stake stake end pre-embedded steel slabs 10,11 surfaces and steel plate 10,
The polystyrene clogged in each link slot on 11 is foamed to wait sundries to clean out, and then coats connecting pin 12 (silk tooth part)
Marine glue screws in each connecting pin 12 (silk tooth part) with spanner to pile extension and tightens, and connecting pin 12 has half length exposed, at this moment
Slinging to pile extension, connecting pin 12 is cleaned up, suitable marine glue is then smeared in link slot, then allows each of an end
It is inserted into after the link slot of 12 aligned with lower driven pile of connecting pin, thus overflow the gap in link slot by marine glue, two piles
It is closely attached together by the mechanical engagement effect of connecting pin 12.
Although this mechanical connection manner improves construction efficiency compared to welding connecting mode, due to piecing devices
The steel plate dosage of implantation pile body is increased, this improves the costs of single pile spreading, so that marketing difficulty is increased, and
And end spreading intensity lacks inspection lot measuring technique, there is also hidden danger of quality.
Summary of the invention
The first purpose of this invention is to provide that a kind of structure is simple, can reduce construction cost, improve construction efficiency, applies
Working medium amount is high, reduces the quick spreading end device of expansion in the prestressed concrete pipe pile of hidden danger of quality.
The first purpose of this invention can be realized by technical measures below: swollen in a kind of prestressed concrete pipe pile
Swollen quick spreading end device, it is characterised in that: it includes long bolt, opening expansion sleeve, elastic washer and fastening nut, institute
The middle upper section for stating long bolt is smooth section, and the upper end of the smooth section is the end of expanding of flaring, and the lower section of the long bolt is spiral shell
Line section, the fastening nut are sleeved on thread segment, and the opening expansion sleeve is sleeved in smooth section and the opening expands
The top tube wall of casing is provided with longitudinal fracture shaped opening, and the elastic washer is located at the lower end of the opening expansion sleeve and tight
Gu between nut, when in use, the opening expansion sleeve is mounted in the preformed hole at pile body stake end, and fastening nut passes through bullet
Property washer be supported on preformed hole hole along upper, screw fastening nut by the end of expanding of long bolt and strut the opening expansion sleeve
Top, making to be open between expansion sleeve and preformed hole inner wall forms mill card resistance power and is anchored in preformed hole, the end device
In stretching the section of stretching out of pile body stake end preformed hole protrude into lower pile body stake end be marked in the preformed hole of adhesive glue and with preformed hole inner wall
It is bonded together to realize upper and lower pile body spreading.
The present invention has mainly used interior expansion bolt principle and bar planting spreading principle, under the premise of guaranteeing spreading quality,
Pile body spreading construction efficiency not only can be improved, and do not influenced by rain and snow weather, and due to the configuration of the present invention is simple, connection
Reliably, implantation steel part is saved, to reduce single pile spreading construction cost.In addition, the present invention can pass through opposite end before construction
The pull-out test of head spreading test specimen reduces inspection lot hidden danger of quality.
The quick spreading of expansion refers in prestressed concrete pipe pile pile sinking in prestressed concrete pipe pile described in the present invention
In work progress, to improve pile extension quality and efficiency, under the premise of meeting associated construction quality criteria requirements, with interior expansion
Quick spreading end device effectively quickly connects the long construction technology of stake.
As an improvement of the present invention, the elastic washer uses spring washer, opens in the spring washer with described
Plain washer is had additional between the lower end of mouth expansion sleeve, the plain washer is used to be led to as a gentle support component by fastening nut
It crosses spring washer and is pressed on the hole of pile body stake end preformed hole along upper.
As the preferred embodiment of the present invention, the long bolt, opening expansion sleeve, spring washer, plain washer and tight
Gu nut is a set of component, number set component is along prestressed concrete pipe pile stake end circle distribution.
Second object of the present invention is to provide a kind of interior quick spreading end of expansion of above-mentioned prestressed concrete pipe pile
The construction method of device.
Second object of the present invention can be realized by technical measures below: a kind of above-mentioned prestressed concrete pipe pile
The construction method of the interior quick spreading end device of expansion, it is characterised in that the following steps are included:
(1) preformed hole is opened up along its circumference on the stake end face to the upper and lower pile body of spreading;
(2) opening expansion sleeve is installed in the preformed hole of upper pile body, elastic washer is supported on preformed hole hole along upper;
(3) fastening nut is screwed, long bolt is displaced outwardly, the top of long bolt expanded end and strut opening expansion sleeve,
Mill card resistance power is formed between opening expansion sleeve and preformed hole inner wall and is anchored in preformed hole;On the stake end face of upper pile body there are
End device stretches out the section of stretching out of upper pile body stake end preformed hole;
(4) adhesive glue is injected in the preformed hole of lower pile body;
(5) upper pile body is lifted, the stake end face of upper pile body is placed on the stake end face of lower pile body, while the stretching of end device
Section extend into preformed hole and is bonded together with preformed hole inner wall;
(6) upper and lower pile body spreading is completed.
As a further improvement of the present invention, the preformed hole inner wall of the upper and lower pile body is hydraulically rough surface, is not advised specifically
Then concave-convex wall surface, to improve the firmness of the connection of the preformed hole inner wall of the present apparatus and upper and lower pile body.
The present invention the step (4) in, in the preformed hole of downward pile body before injection adhesive glue, preformed hole is carried out clear
Hole processing, including dedusting borehole cleaning and hairbrush borehole cleaning etc..
As a kind of preferred embodiment of the invention, the adhesive glue is bar planting seccotine.
It is respectively 300~500mm that end device of the present invention, which protrudes into length in upper and lower pile body preformed hole,.
Compared with prior art, the present invention has following significant effect:
(1) the present invention has mainly used interior expansion bolt principle and bar planting spreading principle, in the premise for guaranteeing spreading quality
Under, pile body spreading construction efficiency is improved, and do not influenced by rain and snow weather, overcome present in existing welding connecting mode
Defect.
(2), present invention saves implantation steel part, single pile spreading construction cost is reduced, existing machinery connection type is overcome
Existing defect.
(3) the present invention has used interior expansion bolt principle, is anchored at upper section in pile body, while having used bar planting principle,
So that bar planting seccotine package lower section and lower pile body preformed hole inner wall is formed high-strength cohesive force, ensure that spreading quality.
(4) the present invention uses latching mechanism, therefore can carry out pull-out test to end spreading test specimen excessively before construction, thus
Reduce inspection lot hidden danger of quality.
(5) the configuration of the present invention is simple, connection is reliable, practical, suitable for being widely popularized and being applicable in.
Detailed description of the invention
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the diagrammatic cross-section of existing welding connection structure;
Fig. 2 is the diagrammatic cross-section of existing machinery connection structure;
Fig. 3 is integral installation distribution structure schematic diagram of the invention;
Fig. 4 is the structure sectional view that the present invention is mounted on upper and lower pile body stake end face.
Specific embodiment
It as shown in Figures 3 and 4, is the quick spreading end device of expansion in a kind of prestressed concrete pipe pile of the present invention, it is wrapped
Include long bolt 13, opening expansion sleeve 14, spring washer 15, plain washer 16 and hexagonal fastening nut 17, in long bolt 13 on
Section is smooth section, and end 18 is expanded for flaring in the upper end of smooth section, and the lower section of long bolt 13 is thread segment, hexagonal fastening nut 17
It is sleeved on thread segment, opening expansion sleeve 14 is sleeved in smooth section and the top tube wall for the expansion sleeve 14 that is open is provided with longitudinal direction
Fracture shaped opening 19, opening 19 along opening expansion sleeve circumference it is settable multiple, plain washer 16, spring washer 15 are from top to bottom
It is sequentially located between the lower end and hexagonal fastening nut 17 of opening expansion sleeve 14, when in use, opening expansion sleeve 14 is installed
In the preformed hole 20 at upper pile body stake end, hexagonal fastening nut 17 is supported on preformed hole 20 by spring washer 15, plain washer 16
Hole screws the tops expanding end 18 strut opening expansion sleeve 14 of the hexagonal fastening nut 17 by long bolt 13, makes out along upper
Mill card resistance power is formed between mouth expansion sleeve 14 and 20 inner wall of preformed hole and is anchored in preformed hole 20, and the present apparatus stretches out upper pile body
The section of stretching out of stake end preformed hole 20 protrudes into lower pile body stake end and is marked in the preformed hole 21 of adhesive glue and bonds with 21 inner wall of preformed hole
Together, to realize upper and lower pile body spreading.The inner wall of preformed hole 20,21 is that irregular concave-convex wall surface is strong to reinforce connection
Degree.
In actual use, long bolt 13, opening expansion sleeve 14, spring washer 15, plain washer 16 and hexagonal fasten spiral shell
Mother 17 is a set of component, and number set component is along prestressed concrete pipe pile stake end circle distribution.
The quick spreading of expansion refers in prestressed concrete pipe pile pile sinking in prestressed concrete pipe pile described in the present invention
In work progress, to improve pile extension quality and efficiency, under the premise of meeting associated construction quality criteria requirements, with interior expansion
Quick spreading end device effectively quickly connects the long construction technology of stake.
A kind of construction method of the interior quick spreading end device of expansion of above-mentioned prestressed concrete pipe pile, including following step
It is rapid:
(1) preformed hole 20,21 is opened up along its circumference on the stake end face to the upper and lower pile body of spreading, wherein preformed hole 20
It across pile end plate 23 and protrudes into upper pile body, preformed hole 21 passes through pile end plate 24 and protrudes into lower pile body;
(2) opening expansion sleeve 14 is installed in the preformed hole 20 of upper pile body, hexagonal fastening nut 17 passes through spring washer
15, plain washer 16 is supported on the hole of preformed hole 20 along upper;
(3) screw hexagonal fastening nut 17, be displaced outwardly long bolt 13, long bolt 13 expand end 18 strut opening it is swollen
The top of expansion set pipe 14 is open between expansion sleeve 14 and 20 inner wall of preformed hole and forms mill card resistance power and be anchored at preformed hole 20
It is interior;It is 300~500mm that end device, which protrudes into length in pile body preformed hole 20,;There are end devices on the stake end face of upper pile body
The section of stretching out of pile body stake end preformed hole 20 in stretching;
(4) dust suction borehole cleaning is carried out to the preformed hole 21 of lower pile body and injected in preformed hole 21 later using hairbrush borehole cleaning
Bar planting seccotine 22;
(5) upper pile body is lifted, the stake end face of upper pile body is placed on the stake end face of lower pile body, while the stretching of end device
Section, which is extend into preformed hole 21, to be bonded together with 21 inner wall of preformed hole by bar planting seccotine 22.End device protrudes into lower pile body
Length is 300~500mm in preformed hole 21;
(6) upper and lower pile body spreading is completed.
The implementation of the present invention is not limited to this, and above content according to the present invention is known according to the ordinary skill of this field
Know and customary means, the present invention can also make the modification, replacement or change of other diversified forms, all falls within right of the present invention and protect
Within the scope of shield.
Claims (8)
1. the quick spreading end device of expansion in a kind of prestressed concrete pipe pile, it is characterised in that: it includes long bolt, opening
Expansion sleeve, elastic washer and fastening nut, the middle upper section of the long bolt are smooth section, and the upper end of the smooth section is flaring
Expand end, the lower section of the long bolt is thread segment, and the fastening nut is sleeved on thread segment, the opening expansion sleeve
It is sleeved in smooth section and the top tube wall of the opening expansion sleeve is provided with longitudinal fracture shaped opening, the elastic washer position
Between the lower end and fastening nut of the opening expansion sleeve, when in use, the opening expansion sleeve is mounted on pile body
In the preformed hole at stake end, the fastening nut is supported on preformed hole hole along upper by elastic washer, screws fastening nut and passes through length
The top of screw rod expanded end and strut the opening expansion sleeve, making to be open forms mill card between expansion sleeve and preformed hole inner wall
Resistance and be anchored in preformed hole, the section of stretching out that the end device stretches out upper pile body stake end preformed hole protrudes into lower pile body stake end note
Have in the preformed hole of adhesive glue and is bonded together with preformed hole inner wall to realize upper and lower pile body spreading.
2. the quick spreading end device of expansion in prestressed concrete pipe pile according to claim 1, it is characterised in that: institute
Elastic washer is stated using spring washer, has additional plain cushion between the spring washer and the lower end of the opening expansion sleeve
Circle, the plain washer are used to be pressed on upper pile body stake end by spring washer by fastening nut as a gentle support component and reserve
The hole in hole is along upper.
3. the quick spreading end device of expansion in prestressed concrete pipe pile according to claim 2, it is characterised in that: institute
Stating long bolt, opening expansion sleeve, spring washer, plain washer and fastening nut is a set of component, and number set component is mixed along prestressing force
Solidifying soil pipe pile end circle distribution.
4. the construction method of the quick spreading end device of expansion, special in prestressed concrete pipe pile described in a kind of claim 1
Sign be the following steps are included:
(1) preformed hole is opened up along its circumference on the stake end face to the upper and lower pile body of spreading;
(2) opening expansion sleeve is installed in the preformed hole of upper pile body, elastic washer is supported on preformed hole hole along upper;
(3) fastening nut is screwed, long bolt is displaced outwardly, the top of long bolt expanded end and strut opening expansion sleeve, opening
Mill card resistance power is formed between expansion sleeve and preformed hole inner wall and is anchored in preformed hole;There are ends on the stake end face of upper pile body
Device stretches out the section of stretching out of upper pile body stake end preformed hole;
(4) adhesive glue is injected in the preformed hole of lower pile body;
(5) upper pile body is lifted, the stake end face of upper pile body is placed on the stake end face of lower pile body, while the section of stretching out of end device is stretched
Enter into preformed hole and is bonded together with preformed hole inner wall;
(6) upper and lower pile body spreading is completed.
5. construction method according to claim 4, it is characterised in that: the preformed hole inner wall of the upper and lower pile body is coarse
Wall surface.
6. construction method according to claim 5, it is characterised in that: the step (4) in, the preformed hole of downward pile body
Before interior injection adhesive glue, borehole cleaning processing is carried out to preformed hole.
7. construction method according to claim 6, it is characterised in that: the adhesive glue is bar planting seccotine.
8. construction method according to claim 7, it is characterised in that: the end device protrudes into upper and lower pile body preformed hole
Interior length is respectively 300~500mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810775103.3A CN109056714A (en) | 2018-07-16 | 2018-07-16 | The quick spreading end device of expansion and its construction method in prestressed concrete pipe pile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810775103.3A CN109056714A (en) | 2018-07-16 | 2018-07-16 | The quick spreading end device of expansion and its construction method in prestressed concrete pipe pile |
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Publication Number | Publication Date |
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CN109056714A true CN109056714A (en) | 2018-12-21 |
Family
ID=64816685
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CN201810775103.3A Pending CN109056714A (en) | 2018-07-16 | 2018-07-16 | The quick spreading end device of expansion and its construction method in prestressed concrete pipe pile |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112900427A (en) * | 2021-01-07 | 2021-06-04 | 福建安捷工贸有限公司 | Expansion type anti-pulling connection structure and application |
CN115012377A (en) * | 2022-07-11 | 2022-09-06 | 中船黄埔文冲船舶有限公司 | Bolt type pile leg structure of offshore platform |
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CN1603523A (en) * | 2004-11-16 | 2005-04-06 | 周兆弟 | Upper screw lower connecting pile fastener and precast member |
KR20080093388A (en) * | 2007-04-16 | 2008-10-21 | 이수호 | Concrete pile which be established extended steel plate at bearing part by through bolt |
CN102094492A (en) * | 2010-12-30 | 2011-06-15 | 东莞欧博建材科技有限公司 | Anchoring bar-planting rod capable of keeping center fixed, balanced and expanded |
CN203429900U (en) * | 2013-08-09 | 2014-02-12 | 新疆泽昌投资(集团)有限公司 | Steel bar planting mechanism |
CN105756054A (en) * | 2016-01-05 | 2016-07-13 | 袁江 | Uplift pile mixed connection structure |
CN108193668A (en) * | 2017-12-28 | 2018-06-22 | 天津宝丰建材有限公司 | A kind of prefabricated pile for playing swollen engagement mechanism quick coupling, connection and attaching method thereof |
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CN1603523A (en) * | 2004-11-16 | 2005-04-06 | 周兆弟 | Upper screw lower connecting pile fastener and precast member |
KR20080093388A (en) * | 2007-04-16 | 2008-10-21 | 이수호 | Concrete pile which be established extended steel plate at bearing part by through bolt |
CN102094492A (en) * | 2010-12-30 | 2011-06-15 | 东莞欧博建材科技有限公司 | Anchoring bar-planting rod capable of keeping center fixed, balanced and expanded |
CN203429900U (en) * | 2013-08-09 | 2014-02-12 | 新疆泽昌投资(集团)有限公司 | Steel bar planting mechanism |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN112900427A (en) * | 2021-01-07 | 2021-06-04 | 福建安捷工贸有限公司 | Expansion type anti-pulling connection structure and application |
CN115012377A (en) * | 2022-07-11 | 2022-09-06 | 中船黄埔文冲船舶有限公司 | Bolt type pile leg structure of offshore platform |
CN115012377B (en) * | 2022-07-11 | 2024-01-23 | 中船黄埔文冲船舶有限公司 | Bolt type pile leg structure of offshore platform |
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Application publication date: 20181221 |