CN105970993A - Underwater connection structure for precast piles and precast bearing platform, and construction method thereof - Google Patents
Underwater connection structure for precast piles and precast bearing platform, and construction method thereof Download PDFInfo
- Publication number
- CN105970993A CN105970993A CN201610505940.5A CN201610505940A CN105970993A CN 105970993 A CN105970993 A CN 105970993A CN 201610505940 A CN201610505940 A CN 201610505940A CN 105970993 A CN105970993 A CN 105970993A
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- pile
- prefabricated
- cushion cap
- diameter
- crown
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- Engineering & Computer Science (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)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an underwater connection structure for precast piles and precast bearing platform, and a construction method thereof. The precast bearing platform is fixedly connected to the top ends of the precast piles; the top end of each precast pile is provided with a pile head; the diameter of each pile head is less than the diameter of the corresponding precast pile below the pile head; through holes connected with the pile heads are arranged in the bearing platform; the diameter of each through hole is greater than the diameter of the corresponding pile head and less than the diameter of the corresponding precast pile below the pile head; and concrete is poured between the through holes and the pile heads in a manner of underwater concrete pouring, so that the precast piles are fixedly connected together with the bearing platform.
Description
Technical field
The present invention relates to a kind of underwater pile structure, further relate to the construction method of this underwater pile structure.
Background technology
In the foundation engineerings such as bridge, harbour, harbour, hydraulic engineering, pile foundation of bearing platform plinth is conventional base form.Work as construction
When period cushion cap is positioned at below the water surface, general employing cofferdam method construction, but the cost of cofferdam construction is high, cycle length, technical difficulty
Greatly, it is also possible to affect navigation.At present, precast assembly structure uses the most more and more widely, if pile foundation of bearing platform plinth uses
Precast construction, on-site consolidation, then cofferdam construction operation be can remove from, construction cost reduction of erection time are substantially reduced.Precast assembly
Pile foundation of bearing platform plinth, what key node was how to process stake and cushion cap is connected node under water, but in the prior art, prefabricated pile with
The attachment structure under water of prefabricated cushion cap is the most unreasonable, there is the shortcoming that difficulty of construction is big, reliability is low.
Summary of the invention
The technical problem to be solved in the present invention there is provided a kind of is easy to rapid construction, prefabricated pile reliable for effect and prefabricated cushion cap
Attachment structure under water, to overcome the drawbacks described above of prior art.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that being connected under water of a kind of prefabricated pile and prefabricated cushion cap
Structure, described prefabricated cushion cap is fixedly connected on the top of prefabricated pile, and the top of prefabricated pile has pile crown, and the diameter of described pile crown is little
Prefabricated pile diameter below pile crown, described prefabricated cushion cap is provided with the through hole being connected with pile crown, and the diameter of described through hole is more than stake
The diameter of head, but less than the prefabricated pile diameter below pile crown, fixing even by subaqueous concreting between described through hole and pile crown
It is connected together.
Preferably, described prefabricated pile is concrete square pile, concrete circular pile or concrete tubular pile.
Preferably, described prefabricated pile is provided with the bulb adjacent with pile crown, and bulb is positioned at below pile crown, described prefabricated holds
On platform, the diameter of through hole is less than the diameter of bulb.
Preferably, the prefabricated pile diameter below pile crown is identical.
Preferably, described prefabricated pile is solid concrete stake, is embedded with reinforcing bar, tendon in constituting the concrete of described prefabricated pile
Or steel pipe, described reinforcing bar, tendon or steel pipe expose from the top of prefabricated pile and form described pile crown.
Preferably, described pile crown is additionally provided with shear key.
Another technical problem that the invention solves the problems that is to provide the construction method of above-mentioned attachment structure.
The method comprises the following steps:
A, first prefabricated pile is installed under water put in place;
B, then prefabricated cushion cap is lifted into prefabricated pile top, makes the through hole on prefabricated cushion cap match with pile crown, and pile crown with
Toroidal cavity is formed between through-hole wall;
C, by subaqueous concreting technique concrete perfusion in the toroidal cavity between pile crown and through-hole wall, by prefabricated pile
Connect fixing with prefabricated cushion cap.
Compared with prior art, the invention have the advantages that.
The present invention is connected the structure of node under water and has carried out reasonable design prefabricated pile with prefabricated cushion cap, prefabricated pile pile crown with
Toroidal cavity is formed between the through-hole wall of prefabricated cushion cap, and by, by the way of subaqueous concreting in this toroidal cavity, making
Prefabricated pile and prefabricated cushion cap connect fixing.This simple structure of connected mode under water, easy construction, low cost, quality of connection
Reliably, and construction period can be greatly shortened, have huge economic benefit and important realistic meaning.
Accompanying drawing explanation
Fig. 1 is the elevational schematic view of prefabricated pile of the present invention and the first embodiment of attachment structure under water of prefabricated cushion cap.
Fig. 2 is the elevational schematic view of prefabricated pile of the present invention and the second embodiment of attachment structure under water of prefabricated cushion cap.
Fig. 3 is the elevational schematic view of prefabricated pile of the present invention and the third embodiment of attachment structure under water of prefabricated cushion cap.
Fig. 4 is the top plan view of prefabricated pile of the present invention and the attachment structure under water of prefabricated cushion cap.
In figure:
1, prefabricated cushion cap 2, prefabricated pile 3, subaqueous concreting
11, through hole 21, pile crown 22, bulb
23, reinforcing bar, tendon or steel pipe
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.These embodiments are merely to illustrate this
Invention, and not limitation of the present invention.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " install ", " being connected ",
" connect " and should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected;Can
To be mechanical connection, it is also possible to be electrical connection;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term exists as the case may be
Concrete meaning in the present invention.
Additionally, in describing the invention, except as otherwise noted, " multiple " are meant that two or more.
As it is shown in figure 1, be the first embodiment of the present invention, this prefabricated pile includes pre-with the attachment structure under water of prefabricated cushion cap
Cushion cap 1 and Duo Gen prefabricated pile 2 processed, the top of prefabricated pile 2 has pile crown 21, and the diameter of pile crown 21 is less than the prefabricated of below pile crown
The diameter of stake 2, prefabricated pile 2 diameter of pile crown less than 21 is all identical.Prefabricated cushion cap 1 is provided with and is connected with pile crown 21
The through hole 11 connect, the diameter of through hole 11 is more than the diameter of pile crown 21, but is less than prefabricated pile 2 diameter of below pile crown, therefore,
Prefabricated cushion cap 1 can be located in the top of prefabricated pile 2, and prefabricated pile pile crown 21 and prefabricated cushion cap 1 through-hole wall it
Between formed toroidal cavity (as shown in Figure 4), by the way of subaqueous concreting in this toroidal cavity concrete perfusion 3,
Prefabricated cushion cap 1 and prefabricated pile 2 is made to be fixed together.Prefabricated pile 2 one aspect can play the effect supporting prefabricated cushion cap 1,
On the other hand the bed die of subaqueous concreting can be doubled as.Above-mentioned prefabricated pile 2 can be concrete square pile, concrete circular pile or
Concrete tubular piles etc., for square pile, above-mentioned diameter is appreciated that the circumscribed circle diameter of square-section.
As in figure 2 it is shown, be the second embodiment of the present invention, unlike the first embodiment, pile crown less than 21
The diameter of prefabricated pile 2 is not impartial.Prefabricated pile 2 is provided with the bulb 22 adjacent with pile crown 21, bulb 22
It is positioned at pile crown less than 21, and the diameter of bulb 22 is more than the diameter at other position of prefabricated pile 2, and through hole 11 on prefabricated cushion cap
Diameter less than the diameter of bulb 22.So, bulb 22 can support prefabricated cushion cap 1, and doubles as underwater grouting coagulation
The bed die of soil.As for the diameter of the prefabricated pile 2 of bulb less than 22, can be identical with the diameter of pile crown 21, it is also possible to compare stake
The diameter of 21 is big.
In above-mentioned two embodiment, it is also possible to increase the partial structurtes such as shear key on pile crown 21, prefabricated to improve further
The reliability that cushion cap 1 bonds with pile crown 21.
As it is shown on figure 3, be the third embodiment of the present invention, unlike above two embodiment, pile crown 21 is not
It it is xoncrete structure.Prefabricated pile 2 is solid concrete stake, constitute prefabricated pile 2 concrete in be embedded with reinforcing bar, tendon or
Steel pipe 23, described reinforcing bar, tendon or steel pipe 23 expose from the concrete on prefabricated pile 2 top, and form described pile crown 21.
It is to say, pile crown 21 is to be made up of reinforcing bar upwardly extending from concrete, tendon or steel pipe.Work as subaqueous concreting
After 3 have constructed, these exposed reinforcing bars, tendon or steel pipe are just attached in concrete, and by prefabricated cushion cap 1 and prefabricated
Stake 2 is connected as a single entity.
Above-mentioned attachment structure can be constructed according to the following steps.
A, first each prefabricated pile 2 is installed under water put in place;
B, then prefabricated cushion cap 1 is lifted into prefabricated pile 2 top and it is enclosed within pile crown 21, make the through hole on prefabricated cushion cap and stake
21 match, and form toroidal cavity between the inwall of pile crown 21 and through hole 11;
C, by subaqueous concreting technique concrete perfusion in the toroidal cavity between pile crown 21 and through hole 11 inwall, will
Prefabricated pile 2 and prefabricated cushion cap 1 connect fixing.
Present invention, avoiding tradition cofferdam construction method, achieve precast construction under water by ripe subaqueous concreting technique
Connection, simple structure, easy construction, low cost, quality of connection are reliable, have huge economic benefit.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art,
On the premise of without departing from the technology of the present invention principle, it is also possible to make some improvement and replacement, these improve and replace and also should be regarded as
Protection scope of the present invention.
Claims (7)
1. prefabricated pile and an attachment structure under water for prefabricated cushion cap, described prefabricated cushion cap (1) is fixedly connected on prefabricated pile (2)
Top, is characterized in that, the top of prefabricated pile (2) has pile crown (21), and the diameter of described pile crown (21) is less than pile crown
Following prefabricated pile (2) diameter, described prefabricated cushion cap (1) is provided with the through hole (11) being connected with pile crown (21), institute
State the diameter diameter more than pile crown (21) of through hole (11), but less than pile crown (21) prefabricated pile (2) diameter below,
It is fixed together by subaqueous concreting (3) between described through hole (11) and pile crown (21).
Prefabricated pile the most according to claim 1 and the attachment structure under water of prefabricated cushion cap, is characterized in that, described prefabricated pile (2)
For concrete square pile, concrete circular pile or concrete tubular pile.
Prefabricated pile the most according to claim 1 and the attachment structure under water of prefabricated cushion cap, is characterized in that, described prefabricated pile (2)
Being provided with the bulb (22) adjacent with pile crown (21), bulb (22) is positioned at pile crown (21) below, described pre-
On cushion cap processed, the diameter of through hole (11) is less than the diameter of bulb (22).
The attachment structure under water of prefabricated pile the most according to claim 1 and prefabricated cushion cap, is characterized in that, pile crown (21) with
Under prefabricated pile (2) diameter be identical.
Prefabricated pile the most according to claim 1 and the attachment structure under water of prefabricated cushion cap, is characterized in that, described prefabricated pile (2)
For solid concrete stake, in constituting the concrete of described prefabricated pile (2), it is embedded with reinforcing bar, tendon or steel pipe (23),
Described reinforcing bar, tendon or steel pipe expose from the top of prefabricated pile (2) and form described pile crown (21).
Prefabricated pile the most according to claim 1 and the attachment structure under water of prefabricated cushion cap, is characterized in that, described pile crown (21)
On be additionally provided with shear key.
7. the prefabricated pile described in claim 1 and a construction method for the attachment structure under water of prefabricated cushion cap, is characterized in that, including
Following steps:
A, first prefabricated pile is installed under water put in place;
B, then prefabricated cushion cap is lifted into prefabricated pile top, makes the through hole on prefabricated cushion cap match with pile crown, and in stake
Toroidal cavity is formed between head and through-hole wall;
C, by subaqueous concreting technique concrete perfusion in the toroidal cavity between pile crown and through-hole wall, will be pre-
Stake processed and prefabricated cushion cap connect fixing.
Priority Applications (1)
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CN201610505940.5A CN105970993B (en) | 2016-06-30 | 2016-06-30 | The construction method of the underwater connection structure of prefabricated pile and prefabricated cushion cap |
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CN201610505940.5A CN105970993B (en) | 2016-06-30 | 2016-06-30 | The construction method of the underwater connection structure of prefabricated pile and prefabricated cushion cap |
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CN105970993A true CN105970993A (en) | 2016-09-28 |
CN105970993B CN105970993B (en) | 2018-11-27 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107059773A (en) * | 2017-05-27 | 2017-08-18 | 中交第三航务工程勘察设计院有限公司 | Assembled integral revetment structure and its construction method on a kind of soft soil foundation |
CN107059774A (en) * | 2017-05-27 | 2017-08-18 | 中交第三航务工程勘察设计院有限公司 | A kind of assembled high-rise pile cap revetment structure and construction method |
CN108265737A (en) * | 2018-03-27 | 2018-07-10 | 淮海工学院 | A kind of assembly concrete cushion cap and micro-pile combined basis and construction method |
CN109183827A (en) * | 2018-09-18 | 2019-01-11 | 何文峰 | Underwater reinforced concrete foundation construction operation engineering method |
CN109797765A (en) * | 2018-12-25 | 2019-05-24 | 广州市市政集团设计院有限公司 | It is a kind of to carry out the construction method that cushion cap is connect with pile foundation by attachment device |
CN109989415A (en) * | 2019-05-06 | 2019-07-09 | 河南绿建建筑科技有限公司 | The construction method of assembling type base |
CN110158475A (en) * | 2019-05-21 | 2019-08-23 | 北京工业大学 | A kind of prefabricated assembled bridge substructure and its construction method |
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KR100744693B1 (en) * | 2005-10-24 | 2007-08-01 | (주) 선암기술연구소 | Concrete-steel house and pile foundation footing construction method using thereof |
CN103628504A (en) * | 2013-11-28 | 2014-03-12 | 广州市恒盛建设工程有限公司 | Connecting method of splicing type prefabricated reinforced concrete platform structure underground joints |
CN103711139A (en) * | 2012-09-29 | 2014-04-09 | 上海中技桩业股份有限公司 | Semi-rigid connection structure between pile foundation and bearing platform |
CN204456160U (en) * | 2014-12-12 | 2015-07-08 | 中交公路规划设计院有限公司 | A kind of bridge prefabrication cushion cap |
JP2015183367A (en) * | 2014-03-20 | 2015-10-22 | ジャパンパイル株式会社 | Precast pile and support method of precast pile |
CN204919635U (en) * | 2015-09-18 | 2015-12-30 | 贵州省公路局 | Bridge foundation reinforced structure |
CN205857219U (en) * | 2016-06-30 | 2017-01-04 | 上海勘测设计研究院有限公司 | Prefabricated pile and the attachment structure under water of prefabricated cushion cap |
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KR100744693B1 (en) * | 2005-10-24 | 2007-08-01 | (주) 선암기술연구소 | Concrete-steel house and pile foundation footing construction method using thereof |
CN103711139A (en) * | 2012-09-29 | 2014-04-09 | 上海中技桩业股份有限公司 | Semi-rigid connection structure between pile foundation and bearing platform |
CN103628504A (en) * | 2013-11-28 | 2014-03-12 | 广州市恒盛建设工程有限公司 | Connecting method of splicing type prefabricated reinforced concrete platform structure underground joints |
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CN204456160U (en) * | 2014-12-12 | 2015-07-08 | 中交公路规划设计院有限公司 | A kind of bridge prefabrication cushion cap |
CN204919635U (en) * | 2015-09-18 | 2015-12-30 | 贵州省公路局 | Bridge foundation reinforced structure |
CN205857219U (en) * | 2016-06-30 | 2017-01-04 | 上海勘测设计研究院有限公司 | Prefabricated pile and the attachment structure under water of prefabricated cushion cap |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107059773A (en) * | 2017-05-27 | 2017-08-18 | 中交第三航务工程勘察设计院有限公司 | Assembled integral revetment structure and its construction method on a kind of soft soil foundation |
CN107059774A (en) * | 2017-05-27 | 2017-08-18 | 中交第三航务工程勘察设计院有限公司 | A kind of assembled high-rise pile cap revetment structure and construction method |
CN108265737A (en) * | 2018-03-27 | 2018-07-10 | 淮海工学院 | A kind of assembly concrete cushion cap and micro-pile combined basis and construction method |
CN108265737B (en) * | 2018-03-27 | 2024-03-08 | 淮海工学院 | Assembled concrete bearing platform and micro pile combined foundation and construction method |
CN109183827A (en) * | 2018-09-18 | 2019-01-11 | 何文峰 | Underwater reinforced concrete foundation construction operation engineering method |
CN109797765A (en) * | 2018-12-25 | 2019-05-24 | 广州市市政集团设计院有限公司 | It is a kind of to carry out the construction method that cushion cap is connect with pile foundation by attachment device |
CN109989415A (en) * | 2019-05-06 | 2019-07-09 | 河南绿建建筑科技有限公司 | The construction method of assembling type base |
CN109989415B (en) * | 2019-05-06 | 2021-05-28 | 河南绿建建筑科技有限公司 | Construction method of fabricated foundation |
CN110158475A (en) * | 2019-05-21 | 2019-08-23 | 北京工业大学 | A kind of prefabricated assembled bridge substructure and its construction method |
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