CN106638661B - A kind of four bucket foundation combined type foundation structure systems of concrete support structure - Google Patents
A kind of four bucket foundation combined type foundation structure systems of concrete support structure Download PDFInfo
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- CN106638661B CN106638661B CN201611013512.7A CN201611013512A CN106638661B CN 106638661 B CN106638661 B CN 106638661B CN 201611013512 A CN201611013512 A CN 201611013512A CN 106638661 B CN106638661 B CN 106638661B
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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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Abstract
The present invention relates to foundation structure fields, disclose a kind of four bucket foundation combined type foundation structure systems of concrete support structure, four bucket foundations of square are constituted including central point line, each cylinder type basal top is connected with a concrete ballast cabin structure, a vertical concrete connector is connected between every two concrete ballast cabin structure, concrete connecting bottom board is provided between four vertical concrete connectors, concrete connecting bottom board top is provided with centrally located concrete column, concrete connection top plate is provided at the top of concrete column, it is connected respectively by oblique sheet type variable cross-section concrete structure between concrete column and each concrete ballast cabin structure.The present invention passes through the concrete support structure of similar Special-Shaped Column, and the larger moment of flexure for effectively transmitting superstructure, approximation is converted into pulling force and pressure at bucket foundation, to play the maximum bearing capacity of bucket foundation, saves material.
Description
Technical field
The present invention relates to the foundation structure fields of a kind of harbour, ocean, water conservancy and science of bridge building, in particular to
A kind of more are combined to optimize the foundation structure of bucket foundation stress.
Background technique
Currently, foundation structure usually has pile foundation, gravity type base in ocean engineering field such as Oversea wind power generation engineering
Forms, these foundation structures such as plinth, jacket-type basis, negative-pressure foundation and floating platform usually require large-scale equipment and are transported
And installation, cause operating expenses higher, construction period is longer.For conventional infrastructure, bucket foundation is due to its cost
The features such as cheap, construction convenient, safe and reliable, reusing, is widely used in ocean engineering.
But offshore wind power generation basic structure local environment is sufficiently complex, under load is transmitted in addition to superstructure
Outside the vertical forces of construction weights such as the blower fan pylon come, there are also horizontal forces and moment of flexure that wind load is transmitted to foundation structure, and
Wave, ocean current, sea ice force etc..Big moment load, which generally results in, needs bucket foundation to be relatively large in diameter, and major diameter monotubular basis
Construction restrictive condition it is more, such as its transport and installation process need large-scale equipment.
Therefore, reasonable base form and force transfer system how are designed, upper load is safely and effectively transmitted to cartridge type
Basis, and the bearing capacity of the performance bucket foundation of maximum possible, overcoming the construction on major diameter monotubular basis to limit is bucket foundation
A key link in design.
Summary of the invention
The present invention is to solve the above-mentioned problems in the prior art, four of a kind of concrete support structure are provided
Bucket foundation combined type foundation structure system is formed by oblique sheet type variable cross-section concrete structure and concrete circular rod structure
The concrete support structure of similar Special-Shaped Column, the larger moment of flexure for effectively transmitting superstructure are close at bucket foundation
It is seemingly converted into pulling force and pressure, to play the maximum bearing capacity of bucket foundation, saves material, and can be achieved in construction " floating
Fortune-sinking-leveling " complete set technology, short construction period reduce marine wind electric field construction cost.
In order to solve the above-mentioned technical problem, the present invention is achieved by technical solution below:
A kind of four bucket foundation combined type foundation structure systems of concrete support structure, including four bucket foundations,
It is characterized in that, the central point line of four bucket foundations constitutes a square, each cylinder type basal top connects
It is connected to a concrete ballast cabin structure, the central axis of the concrete ballast cabin structure bucket foundation connected to it
Central axis 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 axis for two concrete ballast cabin structures being connect 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 carries on the horizontal plane that cabin structure is connected；Concrete connecting bottom board top is provided with concrete column, the concrete
Column is located at four bucket foundations and constitutes at the center of square；Concrete connection top is provided at the top of the concrete column
Plate, the concrete connection top plate is for connecting superstructure；The concrete column and each concrete ballast cabin structure
Between connected respectively by the oblique sheet type variable cross-section concrete structures of 1-4, the oblique sheet type variable cross-section concrete structure
Height it is consistent with the height of the concrete column, cross-sectional length connects top plate to the concrete ballast by the concrete
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 it is highly 4~6m that outer diameter, which is 10~15m,.
Wherein, the bucket foundation outer diameter that the clear distance between the two neighboring bucket foundation is 1~3 times.
Wherein, the concrete ballast cabin structure is the cylindrical shape of opening upwards, and outer diameter is 10~15m, highly for 4~
6m。
Wherein, the bucket foundation periphery is arranged the steel floor upwardly extended and is inserted into the concrete ballast cabin knot
Structure, to realize the connection of the concrete ballast cabin structure and the bucket foundation.
Wherein, the height of the vertical concrete connector is consistent with the height of the concrete ballast cabin structure and range
For 4~6m, with a thickness of 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 flushes.
Wherein, the concrete connecting bottom board is 0.5m~2m with the thickness that the concrete connects top plate.
Wherein, the height of the concrete column is 10~20m.
Wherein, the oblique sheet type variable cross-section concrete structure with a thickness of 0.5m~2m.
The beneficial effects of the present invention are:
Combined type foundation structure system of the invention uses concrete support structure transition between four bucket foundations, and
Four bucket foundations are linked to be entirety, is conducive to increase foundation structure system resistance to tipping moment, improves the stabilization in transportational process
Property；Cast in place process can be used in concrete support structure, is monolithic construction, transmits upper load jointly, it is integrally rigid to increase structure
Degree.
Combined type foundation structure system of the invention passes through oblique sheet type variable cross-section concrete 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
Approximation is converted into pulling force and pressure at plinth, and to play the maximum bearing capacity of bucket foundation and population effect, structure type is simple, by
Power system is clear, saves material, reduces cost.Oblique sheet type variable cross-section concrete structure not only saves material, but also can make top
The load transmitted is more uniformly diffused into bucket foundation, effectively stress is avoided to concentrate.
The combined type foundation structure system of the invention diameter compared with monotubular bucket foundation is smaller, can be achieved in construction
" transportation by driving-sinking-leveling " complete set technology, foundation structure and tower and blower integral installation at sea, in the construction process can
The use of large-scale equipment is reduced, required equipment is simple, and installation time offshore only needs a few hours, builds relative to conventional infrastructure
Period is short, high-efficient, safety and environmental protection, the construction speed of offshore wind farm can be made to greatly improve, construction period significantly shortens, greatly
The construction cost for reducing marine wind electric field, makes offshore wind farm more have the condition of standardization, Development of Modular.
Detailed description of the invention
Fig. 1 is the main 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: 1, bucket foundation；2, concrete ballast cabin structure；3, vertical concrete connector；4, concrete column；5, tiltedly
To sheet type variable cross-section concrete structure；6, concrete connects top plate；7, concrete connecting bottom board.
Specific embodiment
For that can further appreciate that summary of the invention of the invention, feature and effect, the following examples are hereby given, and cooperates attached drawing
Detailed description are 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 identical bucket foundations 1, four it is identical concrete ballast cabin structure 2, four it is identical vertical
The identical 5, coagulations of oblique sheet type variable cross-section concrete structure of the concrete cylindrical 4, four of concrete connector 3, one
Soil connection top plate 6 and a concrete connecting bottom board 7.
Bucket foundation 1 is cylinder-shaped steel structure basis top closed, that bottom is open, outer diameter 15m, wall thickness 25mm, top
Thickness 50mm, the high 5m of cylinder are covered, it is internal to be divided into multiple cabins by the way that subdivision plate is arranged.The diameter of bucket foundation 1 is usually 10~
15m, height are usually 4~6m；Material can be armored concrete, steel, steel-concrete composite material；Inside can carry out
Subdivision processing, can also be handled without subdivision.Subdivision plate can form honeycomb, including center a regular hexagon subdivision
Be uniformly arranged on surrounding six identical side subdivisions, all steel subdivision plate equal lengths, are steel circular cylinder
0.25 times of 1 diameter of movement of type basis.
Four bucket foundations 1 can constitute a square according to its central point line in the horizontal plane and arrange, phase
The distance between adjacent two 1 central points of bucket foundation are 25m.The arrangement of four bucket foundations 1 requires as in the horizontal plane in just
Rectangular distribution, i.e., the center of four bucket foundations 1 are located on four vertex of the square.Two neighboring bucket foundation 1
Between clear distance be 1~3 times of 1 outer diameter of bucket foundation, concrete support structure optimization cartridge type can given full play in this way
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 open top, a kind of closed cylindric concrete structure of inversion in bottom, outer 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 axis of concrete ballast cabin structure 2 is conllinear with the central axis of its corresponding bucket foundation 1 connecting, and coagulation
The diameter that soil pressure carries cabin structure 2 is equal with the diameter of bucket foundation 1.2 inside configuration of concrete ballast cabin structure 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.Pass through bucket foundation 1 week
Side is arranged the annular steel floor extended and is inserted into concrete ballast cabin structure 2 to solve concrete ballast cabin structure 2 and cylinder
Connectivity problem between type basis 1, this connection type it is possible to prevente effectively from previous connecting node stress concentration phenomenon, improve
The overall stiffness of structure.
Vertical concrete connector 3 is in vertically arranged cuboid flake structure, and height is usually tied with concrete ballast cabin
The height of structure 2 is consistent and range is in 4~6m, and with a thickness of 0.5m~1.5m, specific size can be adjusted according to Practical Project.
A vertical concrete connector 3, the vertical concrete connector are connected between each adjacent two concrete ballast cabin structure 2
3 with the central axis for two concrete ballast cabin structures 2 being connect in the same plane, and vertical concrete connector 3 is upper
Lower both sides are flushed with the upper and lower surface of concrete ballast cabin structure 2 respectively.Concrete connecting bottom board 7 is board-like concrete structure,
It is arranged between four vertical concrete connectors 3, is located at four bucket foundations 1 and four concrete ballast cabin structures 2 connect
On the horizontal plane connect, i.e., concrete connecting bottom board 7 is trapped among between four vertical concrete connectors and is located at its bottom end plane.It is mixed
The thickness of solidifying soil connecting bottom board 7 is generally 0.5m~2m, and specific size can be adjusted according to Practical Project.Vertical concrete
It can configure reinforcing bar inside connector 3, 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 improves the globality of four bucket foundations 1, is conducive to improve practice of construction quality,
So that interaction between four bucket foundations is generated population effect, can avoid four using the population effect between four bucket foundations
1 internal force difference of a bucket foundation is excessive, to reduce the differential settlement of foundation structure system entirety.
Concrete column 4 is cylindrical concrete soil structure, and outer diameter 5m is highly 20m, the configurable reinforcing bar in inside.Concrete
The center position that four bucket foundations 1 constitute square is arranged in column 4, and bottom is connected on concrete connecting bottom board 7
Surface, external diametrical extent are 4~6m, and altitude range is 10~20m.Between each concrete ballast cabin structure 2 and concrete column 4
It is connected respectively by an oblique sheet type variable cross-section concrete structure 5, and oblique sheet type variable cross-section concrete structure 5 and company of institute
The central axis of the central axis of the concrete ballast cabin structure 2 connect and concrete column 4 is in the same plane.Every two is adjacent oblique thin
Angle between chip variable cross-section concrete structure 5 is 90 degree, internal configurable reinforcing bar.Oblique sheet type variable cross-section concrete
5 bottom of structure is connected to concrete connecting bottom board 7, and it is highly 20m, with a thickness of 0.5m that height is consistent with 4 height of concrete column
~2m；Oblique 5 top cross-sectional length of sheet type variable cross-section concrete structure is 2.5m, and cross-sectional length connects top plate by concrete
6 to 2 edge of concrete ballast cabin structure (in the inner part) be in consecutive variations.Concrete column 4 and four oblique sheet type variable cross-sections are mixed
Xtah Crude Clay structure 5 combination formed be similar to Special-Shaped Column structure stress system, can be reasonably resistant to top transmit it is larger
Moment of flexure, approximation is converted into pulling force and pressure at bucket foundation 1, to play the maximum bearing capacity of bucket foundation and population effect,
This structure type saves material, reduces cost, has good economy.
It is round concrete plank frame that concrete, which connects top plate 6, and a diameter of 10m, with a thickness of 0.5m, inside is configurable
Reinforcing bar.The diameter that concrete connects top plate 6 is 8~15m, with a thickness of 0.5m~2m.Concrete connects top plate 6 and is arranged in concrete
Column 4 and four oblique 5 tops of sheet type variable cross-section concrete structure, for passing through the connection structures such as ring flange and superstructure such as
The connection of the structures such as offshore fan tower barrel, ocean platform, and load and moment of flexure that superstructure is transmitted passed down to mixed
In solidifying soil support construction, and then it is transmitted on four bucket foundations 1.
Foundation structure system of the invention can carry out assembly with top blower again after the integral assembling of land, pass through sea
Its entirety is dragged to construction location by upper floating towage, realizes injection installation by self weight and negative pressure.In use or after use
The basis jacking can be also recycled by with air pressure reversed when injection.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited to upper
The specific embodiment stated, the above mentioned embodiment is only schematical, be not it is restrictive, this field it is common
Technical staff under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, may be used also
By make it is many in the form of specific transformation, within these are all belonged to the scope of protection of the present invention.
Claims (9)
1. a kind of four bucket foundation combined type foundation structure systems of concrete support structure, including four bucket foundations,
It is characterized in that, the central point line of four bucket foundations constitutes a square, each cylinder type basal top connection
There is a concrete ballast cabin structure, in the central axis of the concrete ballast cabin structure bucket foundation connected to it
Mandrel 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 axis for two concrete ballast cabin structures being connect；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；Concrete connecting bottom board top is provided with concrete column, the concrete column
At the center that four bucket foundations constitute square；Concrete connection top is provided at the top of the concrete column
Plate, the concrete connection top plate is for connecting superstructure；The concrete column and each concrete ballast cabin structure
Between connected respectively by the oblique sheet type variable cross-section concrete structures of 1-4, the oblique sheet type variable cross-section concrete structure
Height it is consistent with the height of the concrete column, cross-sectional length connects top plate to the concrete ballast by the concrete
Cabin structure edge is in consecutive variations；
The bucket foundation periphery is arranged the steel floor upwardly extended and is inserted into the concrete ballast cabin structure, to realize
State the connection of concrete ballast cabin structure Yu the bucket foundation.
2. a kind of four bucket foundation combined type foundation structure systems of concrete support structure according to claim 1,
It is characterized in that, the bucket foundation is internally provided with multiple cabins.
3. a kind of four bucket foundation combined type foundation structure systems of concrete support structure according to claim 1,
It is characterized in that, the bucket foundation is steel cylinder shape, it is highly 4~6m that outer diameter, which is 10~15m,.
4. a kind of four bucket foundation combined type foundation structure systems of concrete support structure according to claim 1,
It is characterized in that, the bucket foundation outer diameter that the clear distance between the two neighboring bucket foundation is 1~3 times.
5. a kind of four bucket foundation combined type foundation structure systems of concrete support structure according to claim 1,
It is characterized in that, the concrete ballast cabin structure is the cylindrical shape of opening upwards, outer diameter is 10~15m, highly for 4~
6m。
6. a kind of four bucket foundation combined type foundation structure systems of concrete support structure according to claim 1,
It is characterized in that, the height of the vertical concrete connector is consistent with the height of the concrete ballast cabin structure and range is
4~6m, with a thickness of 0.5m~1.5m；It is tied respectively with the concrete ballast cabin on the both sides up and down of the vertical concrete connector
The upper and lower surface of structure flushes.
7. a kind of four bucket foundation combined type foundation structure systems of concrete support structure according to claim 1,
It is characterized in that, the concrete connecting bottom board is 0.5m~2m with the thickness that the concrete connects top plate.
8. a kind of four bucket foundation combined type foundation structure systems of concrete support structure according to claim 1,
It is characterized in that, the height of the concrete column is 10~20m.
9. a kind of four bucket foundation combined type foundation structure systems of concrete support structure according to claim 1,
It is characterized in that, the oblique sheet type variable cross-section concrete structure with a thickness of 0.5m~2m.
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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 |
| CN115434359B (en) * | 2022-09-14 | 2023-10-20 | 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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| CN101736754B (en) * | 2010-01-29 | 2011-08-03 | 道达(上海)风电投资有限公司 | Offshore wind power unit foundation adopting prestressed concrete cylindrical structure |
| KR101355132B1 (en) * | 2012-02-16 | 2014-01-27 | 이지현 | Suction Bucket Foundation |
| CN203924100U (en) * | 2014-04-30 | 2014-11-05 | 天津大学 | A kind of four bucket foundation combined type foundation structure systems with support |
| CN103981894B (en) * | 2014-04-30 | 2016-04-13 | 天津大学 | A kind of foundation structure system of multiple bucket foundation combination |
| KR101672595B1 (en) * | 2014-11-18 | 2016-11-04 | 현대건설주식회사 | Suction bucket foundation for decreasing resistance of seawater and adjusting verticality, installing and lifting method |
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