CN106638661A - Four-cylindrical-foundation combined foundation structure system of concrete support structure - Google Patents
Four-cylindrical-foundation combined foundation structure system of concrete support structure Download PDFInfo
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- CN106638661A CN106638661A CN201611013512.7A CN201611013512A CN106638661A CN 106638661 A CN106638661 A CN 106638661A CN 201611013512 A CN201611013512 A CN 201611013512A CN 106638661 A CN106638661 A CN 106638661A
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- concrete
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- bucket
- bucket foundation
- ballast cabin
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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
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention relates to the field of foundation structures, and discloses a four-cylindrical-foundation combined foundation structure system of a concrete support structure. The system comprises four cylindrical foundations of which center points are connected to form a square; the top of each cylindrical foundation is connected with a concrete ballast tank structure; a vertical concrete connecting piece is connected between each two concrete ballast tank structures; a concrete connecting baseplate is arranged in a space defined by the four vertical concrete connecting pieces; a concrete column positioned in the center is arranged at the upper part of the concrete connecting baseplate; a concrete connecting top plate is arranged at the top of the concrete column; and the concrete column is connected with each concrete ballast tank structure through an inclined sheet variable-section concrete structure. The system effectively and similarly converts higher bending moment transferred from the upper structures to tension and pressure at the cylindrical foundations through the concrete support structure similar to a special-shaped column so as to exert maximum bearing capacity of the cylindrical foundations to save materials.
Description
Technical field
The present invention relates to the foundation structure field of a kind of harbour, ocean, water conservancy and science of bridge building, is to be related to specifically
A kind of many are combined to optimize the foundation structure of bucket foundation stress.
Background technology
At present, in ocean engineering field such as Oversea wind power generation engineering, foundation structure generally has pile foundation, gravity type base
The forms such as plinth, jacket-type basis, negative-pressure foundation and floating platform, these foundation structures generally need large-scale equipment to be transported
And installation, cause operating expenses higher, construction period is longer.For comparing conventional infrastructure, bucket foundation is due to its cost
The features such as cheap, convenient, safe and reliable construction, reusing, is widely used in ocean engineering.
But, offshore wind power generation basic structure local environment is sufficiently complex, and load is except under superstructure transmission
Outside the vertical forces of construction weight such as the blower fan pylon for coming, also wind load is delivered to the horizontal force and moment of flexure of foundation structure, and
Wave, ocean current, sea ice force etc..Big moment load is generally resulted in and needs bucket foundation to be relatively large in diameter, and major diameter monotubular is basic
Construction restrictive condition it is more, such as its transport and installation process need large-scale equipment.
Therefore, how reasonable in design base form and force transfer system, upper load is safely and effectively delivered to cartridge type
Basis, and the bearing capacity of the performance bucket foundation of maximum possible, the construction restriction for overcoming major diameter monotubular basis is bucket foundation
A key link in design.
The content of the invention
The present invention is to solve the above-mentioned problems in the prior art, there is provided four of a kind of concrete support structure
Bucket foundation combined type foundation structure system, is formed by oblique sheet type variable cross-section xoncrete structure and concrete circular rod structure
The concrete support structure of similar Special-Shaped Column, the larger moment of flexure for effectively transmitting superstructure is near at bucket foundation
Pulling force and pressure are seemingly converted into, the bearing capacity maximum to play bucket foundation, material-saving, and be capable of achieving in construction " floating
Fortune-sinking-leveling " complete set technology, short construction period reduces marine wind electric field construction cost.
In order to solve above-mentioned technical problem, the present invention is achieved by following technical scheme：
A kind of four bucket foundation combined type foundation structure systems of concrete support structure, including four bucket foundations,
Characterized in that, the central point line of four bucket foundations constitutes a square, each described cylinder type basal top connects
A concrete ballast cabin structure is connected to, the connected bucket foundation of central shaft of the concrete ballast cabin structure
Central shaft is conllinear；A vertical concrete connector is connected between the two neighboring concrete ballast cabin structure, it is described perpendicular
It is coplanar with the central shaft of two concrete ballast cabin structures being connected to concrete connector；Four vertical coagulations
Concrete connecting bottom board is provided between native connector, the concrete connecting bottom board is located at the bucket foundation and the coagulation
Soil pressure is carried on the horizontal plane that cabin structure is connected；The concrete connecting bottom board top is provided with concrete column, the concrete
Post constitutes foursquare center positioned at four bucket foundations；The concrete column top is provided with concrete connection top
Plate, the concrete connection top board is used to connect superstructure；The concrete column and each described concrete ballast cabin structure
Between respectively by the oblique sheet type variable cross-section xoncrete structure connections of 1-4, the oblique sheet type variable cross-section xoncrete structure
Height it is highly consistent with the concrete column, its cross-sectional length by the concrete connect top board to the concrete ballast
Cabin structure edge is in consecutive variations.
Wherein, the bucket foundation is internally provided with multiple cabins.
Wherein, the bucket foundation is steel cylinder shape, and external diameter is 10～15m, is highly 4～6m.
Wherein, the clear distance between the two neighboring bucket foundation is 1～3 times of the bucket foundation external diameter.
Wherein, the concrete ballast cabin structure for opening upwards cylindrical shape, its external diameter is 10～15m, highly for 4～
6m。
Wherein, the bucket foundation periphery arranges upwardly extending steel floor and inserts the concrete ballast cabin knot
Structure, to realize the connection of the concrete ballast cabin structure and the bucket foundation.
Wherein, the highly consistent and scope of the height of the vertical concrete connector and the concrete ballast cabin structure
For 4～6m, thickness is 0.5m～1.5m；The both sides up and down of the vertical concrete connector respectively with the concrete ballast cabin
The upper and lower surface of structure is flushed.
Wherein, the thickness of the concrete connecting bottom board and concrete connection top board is 0.5m～2m.
Wherein, the height of the concrete column is 10～20m.
Wherein, the thickness of the oblique sheet type variable cross-section xoncrete structure is 0.5m～2m.
The invention has the beneficial effects as follows：
The combined type foundation structure system of the present invention adopts concrete support structure transition between four bucket foundations, and
Four bucket foundations are linked to be into entirety, are conducive to increasing foundation structure system resistance to tipping moment, improve stablizing in transportation
Property；Concrete support structure can adopt cast in place process, be monolithic construction, and upper load is transmitted jointly, increase structure overall just
Degree.
The combined type foundation structure system of the present invention is by oblique sheet type variable cross-section xoncrete structure and concrete cylindrical
Structure forms the structure stress system of similar Special-Shaped Column, the larger moment of flexure for effectively transmitting superstructure, in cartridge type base
Pulling force and pressure are approximately converted at plinth, to play the maximum bearing capacity of bucket foundation and population effect, version is simple, receives
Power system is clear, material-saving, reduces cost.Oblique sheet type variable cross-section xoncrete structure both material-saving, can make top again
The load for transmitting more uniformly is diffused into bucket foundation, is prevented effectively from stress concentration.
The combined type foundation structure system of the present invention is less with monotubular bucket foundation phase diameter group, is capable of achieving in construction
" transportation by driving-sinking-leveling " complete set technology, foundation structure and tower and blower fan integral installation at sea, can in work progress
The use of large-scale equipment is reduced, equipment needed thereby is simple, and installation time offshore only needs a few hours, relative to conventional infrastructure construction
Cycle is short, efficiency high, safety and environmental protection, the construction speed that can make offshore wind farm is greatly improved, and construction period significantly shortens, greatly
The construction cost of marine wind electric field is reduced, makes offshore wind farm more possess the condition of standardization, Development of Modular.
Description of the drawings
Fig. 1 is the front view of foundation structure system provided by the present invention；
Fig. 2 is the top view of foundation structure system provided by the present invention.
In figure：1st, bucket foundation；2nd, concrete ballast cabin structure；3rd, vertical concrete connector；4th, concrete column；5th, tiltedly
To sheet type variable cross-section xoncrete structure；6th, concrete connection top board；7th, concrete connecting bottom board.
Specific embodiment
For the content of the invention, feature and the effect of the present invention can be further appreciated that, following examples are hereby enumerated, and coordinate accompanying drawing
Describe in detail as follows：
As depicted in figs. 1 and 2, present embodiment discloses a kind of four bucket foundation combined type bases of concrete support structure
Plinth structural system, including four identicals of identical concrete ballast cabin structure 2, four of identical bucket foundation 1, four are vertical
The oblique 5, coagulation of sheet type variable cross-section xoncrete structure of the identical of concrete cylindrical 4, four of concrete connector 3,
Soil connection top board 6 and a concrete connecting bottom board 7.
Bucket foundation 1 is the open cylinder-shaped steel architecture basics in top seal, bottom, and external diameter is 15m, wall thickness 25mm, top
Lid thickness 50mm, the high 5m of cylinder, its inside is divided into multiple cabins by arranging subdivision plate.The diameter of bucket foundation 1 is usually 10～
15m, height is usually 4～6m；Material can be armored concrete, steel, steel-concrete composite；Inside can be carried out
Subdivision process, it is also possible to do not carry out subdivision process.Subdivision plate can constitute cellular, including a regular hexagon subdivision at center
And six identical side subdivisions being uniformly arranged on around it, all of steel subdivision plate equal length, it is steel circular cylinder
0.25 times of 1 diameter of movement of type basis.
Four bucket foundations 1 can constitute a square and be arranged according to its central point line in the horizontal plane, phase
The distance between adjacent two central points of bucket foundation 1 are 25m.The arrangement requirement of four bucket foundations 1 is in the horizontal plane in just
The center of the bucket foundation of square distribution, i.e., four 1 is located at respectively on foursquare four summits.Two neighboring bucket foundation 1
Between clear distance be 1～3 times of the external diameter of bucket foundation 1, can so give full play to concrete support structure optimization cartridge type
While basic 1 bearing capacity, the carrying energy of mass-type foundation structural system is improved using the population effect of four bucket foundations 1
Power.
Concrete ballast cabin structure 2 is that open top, a kind of of bottom lock are inverted cylindric xoncrete structure, its external diameter
For 15m, wall thickness 35mm, bottom thickness 50mm, high 5m.The external diametrical extent of concrete ballast cabin structure 2 is 10～15m, altitude range
It is 4～6m.The central shaft of concrete ballast cabin structure 2 is conllinear with the central shaft of the bucket foundation 1 being connected corresponding to it, and coagulation
Soil pressure carries the diameter of cabin structure 2 and the equal diameters of bucket foundation 1.The inside configuration of concrete ballast cabin structure 2 may also set up point
Deck board, or increase trapezoidal floor on the inside of bulkhead, to increase the rigidity of concrete ballast cabin structure 2.By bucket foundation 1 week
Side arranges the annular steel floor that extends and inserts concrete ballast cabin structure 2 solving concrete ballast cabin structure 2 and cylinder
Connectivity problem between type basis 1, this connected mode can be prevented effectively from the stress concentration phenomenon of conventional connecting node, improve
The integral rigidity of structure.
Vertical concrete connector 3 is in vertically arranged cuboid flake structure, and height is generally tied with concrete ballast cabin
The highly consistent and scope of structure 2 is 0.5m～1.5m in 4～6m, thickness, and concrete size can be adjusted according to Practical Project.
A vertical concrete connector 3, the vertical concrete connector are connected between per two neighboring concrete ballast cabin structure 2
3 with the central shaft of two concrete ballast cabin structures 2 being connected at grade, and vertical concrete connector 3 is upper
Lower both sides flush respectively with the upper and lower surface of concrete ballast cabin structure 2.Concrete connecting bottom board 7 is board-like xoncrete structure,
It is arranged between four vertical concrete connectors 3, connects positioned at four bucket foundations 1 and four concrete ballast cabin structures 2
On the horizontal plane for connecing, i.e., concrete connecting bottom board 7 is trapped among between four vertical concrete connectors and is located at its bottom plane.It is mixed
The thickness of solidifying soil connecting bottom board 7 is generally 0.5m～2m, and concrete size can be adjusted according to Practical Project.Vertical concrete
Connector 3, the configurable reinforcing bar in the inside of concrete connecting bottom board 7.Concrete ballast cabin structure 2, vertical concrete connector 3 and mixed
The setting of solidifying soil connecting bottom board 7 further increases the globality of four bucket foundations 1, is conducive to improving practice of construction quality,
The interphase interaction for making four bucket foundations produces population effect, and using the population effect between four bucket foundations four can be avoided
1 internal force difference of individual bucket foundation is excessive, the differential settlement overall so as to reduce foundation structure system.
Concrete column 4 is cylindrical concrete soil structure, and external diameter is 5m, is highly 20m, the configurable reinforcing bar in inside.Concrete
Post 4 is arranged on four bucket foundations 1 and constitutes foursquare center position, and its bottom is connected on concrete connecting bottom board 7
Surface, its external diametrical extent is 4～6m, and altitude range is 10～20m.Between each concrete ballast cabin structure 2 and concrete column 4
Connected by an oblique sheet type variable cross-section xoncrete structure 5 respectively, and oblique sheet type variable cross-section xoncrete structure 5 with connect
The central shaft of the concrete ballast cabin structure 2 for connecing and the central shaft of concrete column 4 are at grade.Each two is adjacent oblique thin
Angle between chip variable cross-section xoncrete structure 5 is 90 degree, its internal configurable reinforcing bar.Oblique sheet type variable cross-section concrete
The bottom of structure 5 is connected to concrete connecting bottom board 7, and it is highly highly consistent with concrete column 4, is highly 20m, and thickness is 0.5m
～2m；The oblique top cross-sectional length of sheet type variable cross-section xoncrete structure 5 is 2.5m, and its cross-sectional length connects top board by concrete
The edge of 6 to concrete ballast cabin structure 2 (in the inner part) is in consecutive variations.Concrete column 4 and four oblique sheet type variable cross-sections are mixed
The combination of Xtah Crude Clay structure 5 forms the structure stress system similar to Special-Shaped Column, and can be reasonably resistant to that top transmits is larger
Moment of flexure, is approximately converted into pulling force and pressure at bucket foundation 1, to play the maximum bearing capacity of bucket foundation and population effect,
This version material-saving, reduces cost, with good economy.
Concrete connection top board 6 is circular concrete plank frame, its a diameter of 10m, and thickness is 0.5m, and inside is configurable
Reinforcing bar.Concrete connects a diameter of 8～15m of top board 6, and thickness is 0.5m～2m.Concrete connection top board 6 is arranged on concrete
Post 4 and four oblique tops of sheet type variable cross-section xoncrete structure 5, for passing through the attachment structures such as ring flange with superstructure such as
The structures such as offshore fan tower barrel, ocean platform connect, and load that superstructure is transmitted and moment of flexure pass down to mix
In solidifying soil supporting construction, and then it is delivered on four bucket foundations 1.
The foundation structure system of the present invention can carry out assembly after integral assembling with top blower fan again on land, by sea
Its entirety is dragged to construction location by upper floating towage, realizes that injection is installed by deadweight and negative pressure.After in use or using finishing
Can also be by the basic jacking be recycled with air pressure reverse during injection.
Although being described to the preferred embodiments of the present invention above in conjunction with accompanying drawing, the invention is not limited in
The specific embodiment stated, above-mentioned specific embodiment is only schematic, be not it is restricted, this area it is common
Technical staff in the case of without departing from present inventive concept and scope of the claimed protection, may be used also under the enlightenment of the present invention
To make the concrete conversion of many forms, these are belonged within protection scope of the present invention.
Claims (10)
1. a kind of four bucket foundation combined type foundation structure systems of concrete support structure, including four bucket foundations, its
It is characterised by, the central point line of four bucket foundations constitutes a square, each described cylinder type basal top connection
There is a concrete ballast cabin structure, in the connected bucket foundation of central shaft of the concrete ballast cabin structure
Heart axle is conllinear；A vertical concrete connector is connected between the two neighboring concrete ballast cabin structure, it is described vertical
Concrete connector is coplanar with the central shaft of two concrete ballast cabin structures being connected；Four vertical concrete
Concrete connecting bottom board is provided between connector, the concrete connecting bottom board is located at the bucket foundation and the concrete
On the horizontal plane that ballast cabin structure is connected；The concrete connecting bottom board top is provided with concrete column, the concrete column
Foursquare center is constituted positioned at four bucket foundations；The concrete column top is provided with concrete connection top
Plate, the concrete connection top board is used to connect superstructure；The concrete column and each described concrete ballast cabin structure
Between respectively by the oblique sheet type variable cross-section xoncrete structure connections of 1-4, the oblique sheet type variable cross-section xoncrete structure
Height it is highly consistent with the concrete column, its cross-sectional length by the concrete connect top board to the concrete ballast
Cabin structure edge is in consecutive variations.
2. four bucket foundation combined type foundation structure systems of a kind of concrete support structure according to claim 1,
Characterized in that, the bucket foundation is internally provided with multiple cabins.
3. four bucket foundation combined type foundation structure systems of a kind of concrete support structure according to claim 1,
Characterized in that, the bucket foundation is steel cylinder shape, external diameter is 10～15m, is highly 4～6m.
4. four bucket foundation combined type foundation structure systems of a kind of concrete support structure according to claim 1,
Characterized in that, the clear distance between the two neighboring bucket foundation is 1～3 times of the bucket foundation external diameter.
5. four bucket foundation combined type foundation structure systems of a kind of concrete support structure according to claim 1,
Characterized in that, cylindrical shape of the concrete ballast cabin structure for opening upwards, its external diameter is 10～15m, highly for 4～
6m。
6. four bucket foundation combined type foundation structure systems of a kind of concrete support structure according to claim 1,
Characterized in that, the bucket foundation periphery arranges upwardly extending steel floor and inserts the concrete ballast cabin structure,
To realize the connection of the concrete ballast cabin structure and the bucket foundation.
7. four bucket foundation combined type foundation structure systems of a kind of concrete support structure according to claim 1,
Characterized in that, the height of the vertical concrete connector is with the highly consistent and scope of the concrete ballast cabin structure
4～6m, thickness is 0.5m～1.5m；Tie with the concrete ballast cabin respectively on the both sides up and down of the vertical concrete connector
The upper and lower surface of structure is flushed.
8. four bucket foundation combined type foundation structure systems of a kind of concrete support structure according to claim 1,
Characterized in that, the thickness of the concrete connecting bottom board and concrete connection top board is 0.5m～2m.
9. four bucket foundation combined type foundation structure systems of a kind of concrete support structure according to claim 1,
Characterized in that, the height of the concrete column is 10～20m.
10. four bucket foundation combined type foundation structure systems of a kind of concrete support structure according to claim 1,
Characterized in that, the thickness of the oblique sheet type variable cross-section xoncrete structure is 0.5m～2m.
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| CN201611013512.7A CN106638661B (en) | 2016-11-15 | 2016-11-15 | A kind of four bucket foundation combined type foundation structure systems of concrete support structure |
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|---|---|---|---|
| CN201611013512.7A CN106638661B (en) | 2016-11-15 | 2016-11-15 | A kind of four bucket foundation combined type foundation structure systems of concrete support structure |
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| CN106638661A true CN106638661A (en) | 2017-05-10 |
| CN106638661B CN106638661B (en) | 2019-02-19 |
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Cited By (3)
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| CN110093943A (en) * | 2019-02-27 | 2019-08-06 | 重庆大学 | A kind of novel suction cartridge type composite structure wind-power tower basis suitable for deep-sea |
| CN111576428A (en) * | 2020-05-20 | 2020-08-25 | 华电重工股份有限公司 | Attitude feed control system and attitude feed control method for fan foundation sinking process |
| CN115434359A (en) * | 2022-09-14 | 2022-12-06 | 中国能源建设集团广东省电力设计研究院有限公司 | Offshore wind turbine foundation |
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