CN109972647A - A kind of pile foundation and the connection structure of underwater binder, pile foundation construction connection method - Google Patents

A kind of pile foundation and the connection structure of underwater binder, pile foundation construction connection method Download PDF

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Publication number
CN109972647A
CN109972647A CN201910183849.XA CN201910183849A CN109972647A CN 109972647 A CN109972647 A CN 109972647A CN 201910183849 A CN201910183849 A CN 201910183849A CN 109972647 A CN109972647 A CN 109972647A
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CN
China
Prior art keywords
connection structure
pile foundation
binder
concrete
steel connection
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CN201910183849.XA
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Chinese (zh)
Inventor
付坤
程泽坤
金晓宏
李鸿博
阮春生
张峰
黄向平
莫若瑜
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CCCC Third Harbor Consultants
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CCCC Third Harbor Consultants
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Priority to CN201910183849.XA priority Critical patent/CN109972647A/en
Publication of CN109972647A publication Critical patent/CN109972647A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/10Deep foundations
    • E02D27/12Pile foundations
    • E02D27/14Pile framings, i.e. piles assembled to form the substructure
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0061Production methods for working underwater
    • E02D2250/0084Production methods for working underwater using pneumatical means
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0004Synthetics
    • E02D2300/0018Cement used as binder
    • E02D2300/002Concrete
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0026Metals
    • E02D2300/0029Steel; Iron
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00Miscellaneous
    • E02D2600/20Miscellaneous comprising details of connection between elements

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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)
  • Foundations (AREA)

Abstract

The invention discloses the connection structures of a kind of pile foundation and underwater binder, comprising: passes through binder between multiple jointings and two jointings;Jointing includes: that the first shear connector is connect with the first steel connection structure;Second shear connector is connect with the second steel connection structure, and the size of the second steel connection structure is greater than the first steel connection structure, and binder is connect with the second steel connection structure;Protective cover is arranged in horn-like, second end in the first end of second steel connection structure, and plugging air bag protected cover in inflation stops to extend to the first steel connection structure direction;The first concrete region, the second concrete region are formed between first steel connection structure and the second steel connection structure;The present invention improves the holistic resistant behavior on high bearing platform supported on piles in deep water basis, reduces the project cost on entire basis;It is higher to the construction errors tolerance such as positioning accuracy of pile foundation using air bag plugging technology;Marine environment small by the active force of water flow under water, suitable for hydrologic condition complexity.

Description

A kind of pile foundation and the connection structure of underwater binder, pile foundation construction connection method
Technical field
The present invention relates to technical field of buildings more particularly to a kind of pile foundations and the connection structure of underwater binder, pile foundation construction Connection method.
Background technique
The engineering constructions such as domestic bridge, wind-powered electricity generation, harbour in recent years are further sent out to profundal zones such as ocean, rivers and reservoirs Exhibition.Deep water foundation cost is high, and Selection of engineering projects has very important influence to the total cost of entire engineering.In 30m Within within the scope of the depth of water, under no special hydrogeologic condition, elevated pile cap grouped pile foundation is in engineering economy, convenience for construction etc. Aspect has certain advantage relative to other base forms such as caisson, open caisson, jacket, therefore is widely used.
In the elevated pile cap grouped pile foundation of profundal zone, pile foundation it is longer without lateral support length, in horizontal forces such as wind, waves and Under the action of superstructure horizontal force, bending is larger with displacement at pile top, generally use increase stake diameter mode come meet by Force request.It, can be big if increasing one or more layers submerged level consolidation coupled system between a clump of piles according to structural mechanics principle Width reduces Internal forces and increases the whole thrust stiffness on basis, to reduce the demand to stake diameter, promotes a high-rise pile cap clump of piles The engineering economy on basis.
Early stage, certain domestic Yangtze Bridge used the double-deck cushion cap technology, using underwater lower layer's cushion cap as between a clump of piles Horizontal consolidation coupled system.But the temporary projects expense such as the technology cofferdam is higher, mature in great diameter and long pile foundation technology Today, do not have technology economy advantage;While its bottomless steel cofferdam of large size used is larger by the active force of water flow, It is difficult to adapt to the biggish marine environment of stormy waves.
For the further development for pushing profundal zone elevated pile cap grouped pile foundation technology, need to developing one kind, cost is relatively low, to evil Bad construction environment adaptability is relatively strong, has the connection structure of the pile foundation and underwater binder of certain tolerance to pile foundation construction error.
Summary of the invention
The purpose of the present invention is to provide a kind of pile foundation and the connection structure of underwater binder, pile foundation construction connection method, solutions Certainly existing high-rise pile cap deep water foundation technology cost is high, is difficult to adapt to the problems such as deeper depth condition, and difficulty of construction compared with It is low.
To achieve the goals above, the present invention provides the connection structure of a kind of pile foundation and underwater binder, comprising:
Multiple jointings and multiple binders pass through binder between two jointings and connect;The jointing includes:
First shear connector is connect with the first steel connection structure;
Second shear connector is connect with the second steel connection structure, and the size of second steel connection structure is greater than described the The size of one steel connection structure, the binder are connect with second steel connection structure;
The first end of second steel connection structure is in horn-like, the second end setting protection of second steel connection structure Cover, is provided with plugging air bag in the protective cover, the plugging air bag in inflation by the protective cover stop and to described the One steel connection structure direction extends;
The first concrete region, the second coagulation are formed between first steel connection structure and second steel connection structure Tu Qu;First concrete region is located at the bottom of second concrete region, and the plugging air bag is located at first coagulation The bottom of Tu Qu, and the height of first concrete region is less than the height of second concrete region.
Preferably, the protective cover includes: the first connecting plate, the second connecting plate, first connecting plate and described second Connecting plate is in 90 degree of connections;
The first end of first connecting plate is connected in second steel connection structure, and the second of first connecting plate End is connected to the first end of second connecting plate, and the of the second end of second connecting plate and second steel connection structure Two end extending directions are identical;
The plugging air bag is stopped by second connecting plate in inflation and is prolonged to first steel connection structure direction It stretches.
In a kind of implementation, the binder is steel pipe, and is perfused with slightly expanded concrete in the steel pipe.
In a kind of implementation, second shear connector and/or first shear connector are multiple cyclic annular steel plate strips compositions.
Preferably, the first concrete region encapsulating base concrete, perfusion consolidation concrete in second concrete region.
A kind of pile foundation construction connection method, which comprises
Pile foundation is poured, determines the pile foundation number, the pile foundation size and the pile foundation spacing;
According to the pile foundation size selection jointing, and determine according to the pile foundation number quantity of jointing, with And the size of binder is determined according to the pile foundation spacing;
The binder and the jointing are subjected to the connection structure that welding forms pile foundation Yu underwater binder, and according to institute The position for stating pile foundation carries out positioning and the lower section of the pile foundation and the connection structure of underwater binder;
After determining that height below the connection structure of the pile foundation and underwater binder is in place, to stifled in the jointing Gas leakage capsule is inflated, to reach preset pressure value;
Concreting is carried out to the first concrete region in each jointing by root;And in first concrete region Concrete strength reach the first preset strength after, in each jointing the second concrete region carry out concreting, Concrete in the second concrete region, which reaches to construct after the second preset strength, to be finished.
Using pile foundation provided in an embodiment of the present invention and the connection structure of underwater binder, pile foundation construction connection method, have Have the beneficial effect that:
(1) it is covered in pile foundation by jointing, two adjacent jointings are attached further through binder, thus shape At entirety, the holistic resistant behavior on high bearing platform supported on piles in deep water basis is improved in this way, reduces the project cost on entire basis;? Beneficial to the promotion of basic holistic resistant behavior, High-Rise Pile Cap Foundation is still feasible under 50m depth condition and has economic advantages.
(2) air bag plugging technology is used, it is higher to the construction errors tolerance such as positioning accuracy of pile foundation, it is provided simultaneously with adaptive The ability of position should be adjusted;Air bag inflation can be used electric control solenoid valve remote control and implement, and default lead can be used in underwater concreting Pipe is filled more than the water surface and is sent, therefore difficulty of construction is lower;Air bag plugging and the dual fixation of bottom concrete, fully ensure that Consolidate the construction quality of concrete.
(3) pile foundation provided by the invention and the connection structure volume of underwater binder are small, small by the active force of water flow under water, Marine environment suitable for hydrologic condition complexity.
Detailed description of the invention
Fig. 1 is one of binder provided in an embodiment of the present invention and pile base jointing construction sectional elevation.
Fig. 2 is one of binder provided in an embodiment of the present invention and pile base jointing construction flat sectional drawing.
Fig. 3 is that multiple tracks binder provided in an embodiment of the present invention and multi-column pier foundation jointing construct sectional elevation schematic diagram.
Fig. 4 is that multiple tracks binder provided in an embodiment of the present invention and multi-column pier foundation jointing construct flat cutting faces schematic diagram.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from Various modifications or alterations are carried out under spirit of the invention.
Please refer to Fig. 1-4.It should be noted that only the invention is illustrated in a schematic way for diagram provided in the present embodiment Basic conception, only shown in schema then with related component in the present invention rather than component count, shape when according to actual implementation Shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its component cloth Office's kenel may also be increasingly complex.
The present invention provides the connection structure of a kind of pile foundation and underwater binder picture 1-4, comprising: multiple jointings and multiple Binder passes through binder between two jointings and connects;The jointing includes:
First shear connector 9 is connect with the first steel connection structure 10;
Second shear connector 8 is connect with the second steel connection structure 3, and the size of the second steel connection structure 3 connects greater than the first steel The size of binding structure 10, binder 2 are connect with the second steel connection structure 3;
The first end of second steel connection structure 3 is in horn-like, the second end setting protective cover 5 of the second steel connection structure 3, guarantor Plugging air bag 4 is provided in shield 5, plugging air bag 4 is stopped by the protective cover 5 in inflation and connects and tie to first steel 10 direction of structure extends;
The first concrete region 6, the second concrete region are formed between first steel connection structure 10 and the second steel connection structure 3 7;First concrete region 6 is located at the bottom of the second concrete region 7, and plugging air bag 4 is located at the bottom of the first concrete region 6, and first Height of the height of concrete region 6 less than the second concrete region 7.
It is understood that the first shear connector 9 is connect with the first steel connection structure 10, the first shear connector 9 is multiple along the One steel connection structure 10 circlewise steel plate strip, the second shear connector 8 is identical as 9 structure of the first shear connector, the first shear connector 9, and second 8 section configuration of shear connector is isosceles trapezoid and bottom is weld side.The size of second steel connection structure 3 connects greater than first steel The size of binding structure 10 will form annular space region between the second steel connection structure 3, the first steel connection structure 10 in this way. The first end of the second steel connection structure 3 of setting is in horn-like simultaneously, and such concreting can be from the second steel connection structure 3 First end, the filling of the first end of the first steel connection structure 10 are sent, and construction is facilitated.
The plugging air bag 4 being arranged in the embodiment of the present invention is located in protective cover 5, is played by 5 one side of protective cover to gas The protection of capsule prevents plugging air bag 4 from damaging, on the other hand plays resistance to its gas replenishment process while protecting plugging air bag 4, So that plugging air bag 4 extends to 10 direction of the first steel connection structure, increase between plugging air bag 4 and the first steel connection structure Pressure, improve jointing and its internal pile foundation connective stability.
It should be noted that the annulus formed between the first steel connection structure 10 and the second steel connection structure 3 can be with It is divided into the first concrete region 6, the second concrete region 7, the first concrete region 6 is located at the bottom of the second concrete region 7, and first The height of concrete region 6 is less than the height of the second concrete region 7, and illustratively, the height of the first concrete region 6 is the second coagulation The half of native 7 height of area, alternatively, the height of the first concrete region 6 is 1/3, etc. of 7 height of the second concrete region, the present invention Embodiment is not specifically limited herein.
During specific implementation, after being attached connector connection, need in the first concrete region 6, the second concrete region 7 Perfusion is small particle aggregate and the concrete with quick solidifiability.First concrete region 6 is after plugging air bag 4 is inflated It pours, it is therefore an objective to binder 2 and a clump of piles is tentatively fixed, reduce pile foundation 1 caused by flow action and the first steel connection structure 10, the Shaking displacement between two steel connection structures 3, to guarantee the construction quality of the second concrete region 7;Therefore difficulty of construction is lower;? When construction area is Lentic environment, the first concrete region 6 can not implement, and be adapted to different use environments.
Preferably, the protective cover 5 includes: the first connecting plate 51, the second connecting plate 52, and the first connecting plate 51 and second connects Fishplate bar 52 is in 90 degree of connections;The first end of first connecting plate 51 is connected in the second steel connection structure 3, and the of the first connecting plate 51 Two ends are connected to the first end of the second connecting plate 52, the second end of the second end of the second connecting plate 52 and the second steel connection structure 3 Extending direction is identical;The plugging air bag 4 is stopped by second connecting plate 52 in inflation and connects and tie to first steel 10 direction of structure extends.
It should be noted that the plugging air bag 4 is hidden in protective cover 5 before inflating, it is located at first concrete region 6 Bottom, avoid damaging;First connecting plate 51, second connecting plate after the inflation of plugging air bag 4 in protective cover 5 Under the action of 52, downwards inwardly expansion and can be by the first steel connection structure 10, the bottom of the second steel connection structure 3 and pile foundation Gap between 1 is completely enclosed.It is higher to the construction errors tolerance such as positioning accuracy of pile foundation 1 using air bag plugging technology.Specifically In implementation, air bag inflation can be used electric control solenoid valve remote control and implement, strong operability.
It should be noted that in actual use, for the first steel connection structure, by taking the pile foundation of profundal zone as an example, in deep water Usually there are two types of forms for area's pile foundation, first is that steel pipe driven pile, piling strtucture is exactly hollow steel pipe, connect and tie as the first steel Structure, another kind are cast-in-situ bored piles, outside be pile foundation steel pile casting, i.e. the first steel connection structure, inside be it is solid, be reinforcing bar Structure.
In a kind of implementation of the invention, the binder 2 is steel pipe, and microdilatancy coagulation is perfused in the steel pipe Soil.
Preferably, second shear connector 8 and/or first shear connector 9 are multiple cyclic annular steel plate strip compositions.First cuts Power key 9,8 section configuration of the second shear connector is isosceles trapezoid and bottom is weld side.
In another implementation of the invention, the 6 encapsulating base concrete of the first concrete region, second concrete Perfusion consolidation concrete in area 7.It should be noted that first concrete region 6, second concrete region 7 are small particle Aggregate and the concrete with quick solidifiability.
It the embodiment of the invention also discloses a kind of pile foundation construction connection method, carries out pouring pile foundation first, such as Fig. 3, Fig. 4 institute Show, determines the pile foundation number, the pile foundation size and the pile foundation spacing;According to the pile foundation size selection jointing, And the quantity of jointing is determined according to the pile foundation number, and the size of binder is determined according to the pile foundation spacing;By institute It states binder and the jointing carries out the connection structure that welding forms attachment device pile foundation Yu underwater binder, weld together shape At lattice system;Slightly expanded concrete is filled in binder steel pipe forms combination member of steel tube concrete;To binder and jointing Carry out appropriate preservative treatment.
Positioning and the lower section of the connection structure of the pile foundation and underwater binder are carried out according to the position of the pile foundation;Using big Type crane barge, integral hoisting binder and jointing lattice system;Using Pile Installation Platform, related auxiliary positioning facility is installed, Binder and jointing lattice system is assisted to be accurately positioned and transfer.
Then after height below the connection structure for determining the pile foundation and underwater binder is in place, to the jointing In plugging air bag be inflated, to reach preset pressure value;The first concrete region in each jointing is carried out by root Concreting;And after the concrete strength of first concrete region reaches the first preset strength, to each jointing In the second concrete region carry out concreting, constructed after the concrete of the second concrete region reaches the second preset strength Finish.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as At all equivalent modifications or change, should be covered by the claims of the present invention.

Claims (6)

1. the connection structure of a kind of pile foundation and underwater binder characterized by comprising multiple jointings and multiple binders, two It is connected between a jointing by binder;The jointing includes:
First shear connector (9) is connect with the first steel connection structure (10);
Second shear connector (8) is connect with the second steel connection structure (3), and the size of second steel connection structure (3) is greater than institute The size of the first steel connection structure (10) is stated, the binder (2) connect with second steel connection structure (3);
The first end of second steel connection structure (3) is in horn-like, the second end setting guarantor of second steel connection structure (3) Shield (5), the protective cover (5) is interior to be provided with plugging air bag (4), and the plugging air bag (4) is in inflation by the protective cover (5) stop and extend to the first steel connection structure (10) direction;
The first concrete region (6), are formed between first steel connection structure (10) and second steel connection structure (3) Two concrete regions (7);First concrete region (6) is located at the bottom of second concrete region (7), the plugging air bag (4) it is located at the bottom of first concrete region (6), and the height of first concrete region (6) is less than second coagulation The height of Tu Qu (7).
2. the connection structure of pile foundation according to claim 1 and underwater binder, which is characterized in that protective cover (5) packet Include: the first connecting plate (51), the second connecting plate (52), first connecting plate (51) and second connecting plate (52) are in 90 degree Connection;
The first end of first connecting plate (51) is connected on second steel connection structure (3), first connecting plate (51) second end is connected to the first end of second connecting plate (52), the second end of second connecting plate (52) with it is described The second end extending direction of second steel connection structure (3) is identical;
The plugging air bag (4) in inflation by second connecting plate (52) stop and to first steel connection structure (10) Direction extends.
3. the connection structure of pile foundation according to claim 1 and underwater binder, which is characterized in that the binder (2) is steel Pipe, and slightly expanded concrete is perfused in the steel pipe.
4. the connection structure of pile foundation according to claim 1 to 3 and underwater binder, which is characterized in that described the Two shear connectors (8) and/or first shear connector (9) are multiple cyclic annular steel plate strip compositions.
5. the connection structure of pile foundation according to claim 4 and underwater binder, which is characterized in that first concrete region (6) encapsulating base concrete, the interior perfusion consolidation concrete in second concrete region (7).
6. a kind of pile foundation construction connection method, which is characterized in that the described method includes:
Pile foundation (1) is poured, determines the pile foundation (1) number, the pile foundation (1) size and the pile foundation (1) spacing;
According to the pile foundation (1) size selection jointing, and determine according to the pile foundation (1) number the quantity of jointing, And the size of binder (2) is determined according to the pile foundation (1) spacing;
The binder (2) and the jointing are subjected to the connection structure that welding forms pile foundation Yu underwater binder, and according to institute The position for stating pile foundation (1) carries out positioning and the lower section of the pile foundation and the connection structure of underwater binder;
After determining that height below the connection structure of the pile foundation and underwater binder is in place, to the leak stopping gas in the jointing Capsule (4) is inflated, to reach preset pressure value;
Concreting is carried out to the first concrete region (6) in each jointing by root;And in first concrete region (6) after concrete strength reaches the first preset strength, concrete is carried out to the second concrete region (7) in each jointing It pours, the concrete in the second concrete region (7), which reaches to construct after the second preset strength, to be finished.
CN201910183849.XA 2019-03-12 2019-03-12 A kind of pile foundation and the connection structure of underwater binder, pile foundation construction connection method Pending CN109972647A (en)

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CN201910183849.XA CN109972647A (en) 2019-03-12 2019-03-12 A kind of pile foundation and the connection structure of underwater binder, pile foundation construction connection method

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Application Number Priority Date Filing Date Title
CN201910183849.XA CN109972647A (en) 2019-03-12 2019-03-12 A kind of pile foundation and the connection structure of underwater binder, pile foundation construction connection method

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070261335A1 (en) * 2006-05-08 2007-11-15 Powell David W Precast construction method and apparatus for variable size elevated platform
CN103362136A (en) * 2013-07-22 2013-10-23 中铁大桥局股份有限公司 Water stopper arranged between prefabricated structure and pile foundation
CN203701138U (en) * 2014-01-24 2014-07-09 熊翱 Shallow sea high pile strengthening hoop
CN210127483U (en) * 2019-03-12 2020-03-06 中交第三航务工程勘察设计院有限公司 Connection structure of pile foundation and underwater tie beam

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070261335A1 (en) * 2006-05-08 2007-11-15 Powell David W Precast construction method and apparatus for variable size elevated platform
CN103362136A (en) * 2013-07-22 2013-10-23 中铁大桥局股份有限公司 Water stopper arranged between prefabricated structure and pile foundation
CN203701138U (en) * 2014-01-24 2014-07-09 熊翱 Shallow sea high pile strengthening hoop
CN210127483U (en) * 2019-03-12 2020-03-06 中交第三航务工程勘察设计院有限公司 Connection structure of pile foundation and underwater tie beam

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