CN210127483U - Connection structure of pile foundation and underwater tie beam - Google Patents
Connection structure of pile foundation and underwater tie beam Download PDFInfo
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- CN210127483U CN210127483U CN201920308127.8U CN201920308127U CN210127483U CN 210127483 U CN210127483 U CN 210127483U CN 201920308127 U CN201920308127 U CN 201920308127U CN 210127483 U CN210127483 U CN 210127483U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 84
- 239000010959 steel Substances 0.000 claims abstract description 84
- 230000001681 protective effect Effects 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 25
- 238000010276 construction Methods 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000007596 consolidation process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses a connection structure of pile foundation and tie beam under water, include: the plurality of connecting joints and the two connecting joints are connected through a tie beam; the connection joint includes: the first shear key is connected with the first steel connecting structure; the second shear key is connected with a second steel connecting structure, the size of the second steel connecting structure is larger than that of the first steel connecting structure, and the tie beam is connected with the second steel connecting structure; the first end of the second steel connecting structure is horn-shaped, the second end of the second steel connecting structure is provided with a protective cover, and the leaking stoppage air bag is blocked by the protective cover to extend towards the direction of the first steel connecting structure when being inflated; a first concrete area and a second concrete area are formed between the first steel connecting structure and the second steel connecting structure; the utility model improves the whole stress performance of the deep water high pile cap foundation and reduces the engineering cost of the whole foundation; the air bag leakage stoppage technology is adopted, so that the tolerance on construction errors such as the positioning accuracy of a pile foundation is high; the underwater ocean wave generator is small in acting force of water flow under water and is suitable for marine environments with complex hydrological conditions.
Description
Technical Field
The utility model relates to a building technical field especially relates to a pile foundation and connection structure of straining under water.
Background
In recent years, domestic engineering construction of bridges, wind power, wharfs and the like further develops to deep water areas such as oceans, rivers, reservoirs and the like. The cost of the deepwater foundation is high, and the selection of the engineering scheme has a significant influence on the total cost of the whole engineering. Under the conditions of water depth within 30m and no special hydrogeological conditions, the high pile cap pile group foundation has certain advantages in the aspects of engineering economy, construction convenience and the like compared with other foundation forms such as a caisson, an open caisson, a jacket and the like, so that the application is wide.
In the high pile cap pile group foundation in the deep water area, the pile foundation has longer length without lateral support, and under the action of horizontal force such as wind, waves and the like and horizontal force of an upper structure, the pile body bending moment and the pile top displacement are larger, and the stress requirement is usually met by adopting a mode of increasing the pile diameter. According to the structural mechanics principle, if one or more layers of underwater horizontal consolidation connection systems are added among pile groups, the internal force of a pile body can be greatly reduced, the integral thrust-resisting rigidity of the foundation is increased, the requirement on the pile diameter is reduced, and the engineering economy of the pile group foundation of the high pile bearing platform is improved.
In the early domestic Yangtze river bridge, a double-layer bearing platform technology is adopted, and an underwater lower layer bearing platform is used as a horizontal consolidation connection system among pile groups. However, temporary engineering costs such as cofferdams are high, and the technology of large-diameter overlong pile foundations is mature today, and the technology and the economic advantages are not achieved; meanwhile, the large bottomless steel cofferdam adopted by the cofferdam is large in acting force of water flow, and is difficult to adapt to the ocean environment with large wind waves.
In order to promote the further development of the pile group foundation technology of the high pile cap in the deep water area, a connection structure of a pile foundation and an underwater tie beam, which has the advantages of low cost, strong adaptability to severe construction environments and certain tolerance to pile foundation construction errors, needs to be developed.
Disclosure of Invention
An object of the utility model is to provide a connection structure of pile foundation and tie beam under water, it is high, be difficult to adapt to deeper depth of water condition scheduling problem to solve current high pile cap deep water foundation technical cost, and the construction degree of difficulty is lower.
In order to achieve the above object, the utility model provides a connection structure of pile foundation and tie beam under water, include:
the connecting device comprises a plurality of connecting joints and a plurality of tie beams, wherein the two connecting joints are connected through the tie beams; the connection joint includes:
the first shear key is connected with the first steel connecting structure;
the second shear key is connected with a second steel connecting structure, the size of the second steel connecting structure is larger than that of the first steel connecting structure, and the tie beam is connected with the second steel connecting structure;
the first end of the second steel connecting structure is horn-shaped, the second end of the second steel connecting structure is provided with a protective cover, a leaking stoppage air bag is arranged in the protective cover, and the leaking stoppage air bag is blocked by the protective cover and extends towards the direction of the first steel connecting structure when being inflated;
a first concrete area and a second concrete area are formed between the first steel connecting structure and the second steel connecting structure; the first concrete area is located at the bottom of the second concrete area, the plugging air bag is located at the bottom of the first concrete area, and the height of the first concrete area is smaller than that of the second concrete area.
Preferably, the protective cover includes: the connecting structure comprises a first connecting plate and a second connecting plate, wherein the first connecting plate and the second connecting plate are connected at an angle of 90 degrees;
the first end of the first connecting plate is connected to the second steel connecting structure, the second end of the first connecting plate is connected to the first end of the second connecting plate, and the extending direction of the second end of the second connecting plate is the same as that of the second end of the second steel connecting structure;
the plugging air bag is blocked by the second connecting plate and extends towards the direction of the first steel connecting structure when being inflated.
In one implementation, the tie beam is a steel pipe, and the steel pipe is filled with micro-expansion concrete.
In one implementation, the second shear key and/or the first shear key is formed by a plurality of annular steel plate strips.
Preferably, the first concrete area is filled with bottom concrete, and the second concrete area is filled with concreting concrete.
Use the embodiment of the utility model provides a connection structure of pile foundation and tie beam under water, the beneficial effect who possesses as follows:
(1) the connecting joints are sleeved on the pile foundation, and two adjacent connecting joints are connected through the tie beam, so that a whole is formed, the whole stress performance of the deep-water high pile cap foundation is improved, and the engineering cost of the whole foundation is reduced; the whole stress performance of the foundation is improved, and the high-pile bearing platform foundation is still feasible and has economic advantages under the water depth condition of 50 m.
(2) By adopting the air bag leakage stoppage technology, the tolerance to construction errors such as the positioning accuracy of a pile foundation is higher, and the air bag leakage stoppage device has the capability of self-adaptively adjusting the position; the air bag can be inflated by adopting an electric control electromagnetic valve for remote control, and underwater concrete pouring can be carried out from the water surface by adopting a preset conduit, so that the construction difficulty is low; the air bag leakage stoppage and bottom sealing concrete double fixing measures fully ensure the construction quality of the concreted concrete.
(3) The utility model provides a pile foundation is small with the connection structure of straining under water, and the effort that receives rivers is little under water, is applicable to the marine environment that the hydrology condition is complicated.
Drawings
Fig. 1 is a sectional elevation view of a tie beam and a pile foundation connector construction according to an embodiment of the present invention.
Fig. 2 is a plan sectional view of a tie beam and a pile connector configuration according to an embodiment of the present invention.
Fig. 3 is a schematic sectional view of a connecting joint structure of a multi-way tie beam and a pile group foundation provided by an embodiment of the invention.
Fig. 4 is a schematic plan sectional view of a connecting joint structure of a multi-channel tie beam and a pile group foundation provided by an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
Please refer to fig. 1-4. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
Fig. 1-4 the utility model provides a connection structure of pile foundation and tie beam under water, include: the connecting device comprises a plurality of connecting joints and a plurality of tie beams, wherein the two connecting joints are connected through the tie beams; the connection joint includes:
the first shear key 9 is connected with the first steel connecting structure 10;
the second shear key 8 is connected with the second steel connecting structure 3, the size of the second steel connecting structure 3 is larger than that of the first steel connecting structure 10, and the tie beam 2 is connected with the second steel connecting structure 3;
the first end of the second steel connecting structure 3 is horn-shaped, the second end of the second steel connecting structure 3 is provided with a protective cover 5, a plugging air bag 4 is arranged in the protective cover 5, and the plugging air bag 4 is blocked by the protective cover 5 and extends towards the first steel connecting structure 10 when being inflated;
a first concrete area 6 and a second concrete area 7 are formed between the first steel connecting structure 10 and the second steel connecting structure 3; the first concrete area 6 is positioned at the bottom of the second concrete area 7, the plugging air bag 4 is positioned at the bottom of the first concrete area 6, and the height of the first concrete area 6 is smaller than that of the second concrete area 7.
It can be understood that the first shear key 9 is connected with the first steel connecting structure 10, the first shear key 9 is a plurality of annular steel plate strips along the first steel connecting structure 10, the second shear key 8 is the same as the first shear key 9 in structure, the cross-sectional shapes of the first shear key 9 and the second shear key 8 are isosceles trapezoids, and the lower bottom is a welding side. The dimensions of the second steel connection 3 are larger than the dimensions of the first steel connection 10, so that an annular space region is formed between the second steel connection 3 and the first steel connection 10. Simultaneously, the first end of the second steel connecting structure 3 is in a horn shape, so that concrete can be poured and conveyed from the first end of the second steel connecting structure 3 and the first end of the first steel connecting structure 10, and construction is facilitated.
The embodiment of the utility model provides an in the leaking stoppage gasbag 4 that sets up is located safety cover 5, plays the protection to the gasbag on the one hand through safety cover 5, prevents that leaking stoppage gasbag 4 from damaging, and on the other hand is aerifing the process to it in the protection leaking stoppage gasbag 4 and plays the resistance to make leaking stoppage gasbag 4 extend to first steel connection structure 10 direction, increase the pressure between leaking stoppage gasbag 4 and the first steel connection structure 10, improve the pile foundation connection stability of attach fitting rather than inside.
It should be noted that the annular space formed between the first steel connecting structure 10 and the second steel connecting structure 3 may be divided into a first concrete area 6 and a second concrete area 7, the first concrete area 6 is located at the bottom of the second concrete area 7, and the height of the first concrete area 6 is smaller than that of the second concrete area 7, for example, the height of the first concrete area 6 is half of the height of the second concrete area 7, or the height of the first concrete area 6 is 1/3 of the height of the second concrete area 7, and so on, and the embodiment of the present invention is not limited in detail herein.
In the concrete implementation process, after the connection joints are connected, concrete with small-particle-size aggregates and rapid solidification performance needs to be poured into the first concrete area 6 and the second concrete area 7. The first concrete area 6 is poured after the plugging air bag 4 is filled with air, so that the tie beam 2 and pile groups are preliminarily fixed, and the shaking displacement among the pile foundation 1, the first steel connecting structure 10 and the second steel connecting structure 3 caused by water flow is reduced, so that the construction quality of the second concrete area 7 is ensured; therefore, the construction difficulty is low; when the construction area is in a still water environment, the first concrete area 6 can be omitted, and the construction method can adapt to different use environments.
Preferably, the protective cover 5 comprises: the connecting structure comprises a first connecting plate 51 and a second connecting plate 52, wherein the first connecting plate 51 and the second connecting plate 52 are connected at an angle of 90 degrees; a first end of the first connecting plate 51 is connected to the second steel connecting structure 3, a second end of the first connecting plate 51 is connected to a first end of the second connecting plate 52, and a second end of the second connecting plate 52 and a second end of the second steel connecting structure 3 extend in the same direction; when being inflated, the plugging air bag 4 is blocked by the second connecting plate 52 and extends towards the direction of the first steel connecting structure 10. It should be noted that the plugging air bag 4 is hidden in the protective cover 5 before being inflated and is positioned at the bottom of the first concrete area 6, so as to avoid damage; after being inflated, the plugging air bags 4 are expanded downwards and inwards under the action of the first connecting plate 51 and the second connecting plate 52 of the protective cover 5, and gaps between the bottoms of the first steel connecting structure 10 and the second steel connecting structure 3 and the pile foundation 1 can be completely closed. And the air bag leakage stoppage technology is adopted, so that the tolerance to construction errors such as the positioning accuracy of the pile foundation 1 is higher. In a specific implementation mode, the air bag inflation can be implemented by adopting an electric control electromagnetic valve for remote control, and the operability is high.
It should be noted that, in practical use, to first steel connection structure, to take the deep water district pile foundation as an example, there are two kinds of forms in the deep water district pile foundation usually, and firstly the stake is driven into to the steel pipe, and its pile foundation structure is hollow steel pipe, as first steel connection structure, another kind is the bored concrete pile, and its outside is pile foundation steel casing, first steel connection structure promptly, and inside is solid, is steel bar structure.
The utility model discloses an among the implementation, tie beam 2 is the steel pipe, just it has micro-expansive concrete to pour into in the steel pipe.
Preferably, the second shear key 8 and/or the first shear key 9 are formed by a plurality of annular steel plate strips. The cross section of the first shear key 9 and the cross section of the second shear key 8 are isosceles trapezoids, and the lower bottom is a welding side.
The utility model discloses an among another kind of implementation, 6 embedment bottom concrete in first concrete district the concreting concrete is poured in 7 in the second concrete district. The first concrete zone 6 and the second concrete zone 7 are made of concrete having a small-particle-size aggregate and having a rapid-setting property.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. A connection structure of pile foundation and underwater tie beam, comprising: the connecting device comprises a plurality of connecting joints and a plurality of tie beams, wherein the two connecting joints are connected through the tie beams; the connection joint includes:
a first shear key (9) connected to the first steel connection structure (10);
the second shear key (8) is connected with the second steel connecting structure (3), the size of the second steel connecting structure (3) is larger than that of the first steel connecting structure (10), and the tie beam (2) is connected with the second steel connecting structure (3);
the first end of the second steel connecting structure (3) is horn-shaped, the second end of the second steel connecting structure (3) is provided with a protective cover (5), a leakage stoppage air bag (4) is arranged in the protective cover (5), and the leakage stoppage air bag (4) is blocked by the protective cover (5) and extends towards the direction of the first steel connecting structure (10) when being inflated;
a first concrete area (6) and a second concrete area (7) are formed between the first steel connecting structure (10) and the second steel connecting structure (3); the first concrete area (6) is located at the bottom of the second concrete area (7), the plugging air bag (4) is located at the bottom of the first concrete area (6), and the height of the first concrete area (6) is smaller than that of the second concrete area (7).
2. Connection structure of pile foundation and underwater tie beam according to claim 1, characterized in that said protective cover (5) comprises: the connecting structure comprises a first connecting plate (51) and a second connecting plate (52), wherein the first connecting plate (51) and the second connecting plate (52) are connected at an angle of 90 degrees;
the first end of the first connecting plate (51) is connected to the second steel connecting structure (3), the second end of the first connecting plate (51) is connected to the first end of the second connecting plate (52), and the second end of the second connecting plate (52) and the second end of the second steel connecting structure (3) extend in the same direction;
the plugging air bag (4) is blocked by the second connecting plate (52) when being inflated and extends towards the direction of the first steel connecting structure (10).
3. The connection structure of pile foundation and underwater tie beam according to claim 1, characterized in that the tie beam (2) is a steel pipe and the steel pipe is poured with micro-expansion concrete.
4. A connection structure for a pile foundation and an underwater mooring beam according to any one of claims 1-3, characterised in that the second shear key (8) and/or the first shear key (9) is/are formed from a plurality of annular steel plate strips.
5. A connection structure for a pile foundation and an underwater bollard as claimed in claim 4 wherein the first concrete section (6) is filled with a ground concrete and the second concrete section (7) is filled with a consolidated concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308127.8U CN210127483U (en) | 2019-03-12 | 2019-03-12 | Connection structure of pile foundation and underwater tie beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308127.8U CN210127483U (en) | 2019-03-12 | 2019-03-12 | Connection structure of pile foundation and underwater tie beam |
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| Publication Number | Publication Date |
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| CN210127483U true CN210127483U (en) | 2020-03-06 |
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| CN201920308127.8U Expired - Fee Related CN210127483U (en) | 2019-03-12 | 2019-03-12 | Connection structure of pile foundation and underwater tie beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972647A (en) * | 2019-03-12 | 2019-07-05 | 中交第三航务工程勘察设计院有限公司 | A kind of pile foundation and the connection structure of underwater binder, pile foundation construction connection method |
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2019
- 2019-03-12 CN CN201920308127.8U patent/CN210127483U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972647A (en) * | 2019-03-12 | 2019-07-05 | 中交第三航务工程勘察设计院有限公司 | A kind of pile foundation and the connection structure of underwater binder, pile foundation construction connection method |
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Granted publication date: 20200306 |
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