CN209493962U - A kind of long-short pile bucket foundation suitable for deep water complex sea area - Google Patents
A kind of long-short pile bucket foundation suitable for deep water complex sea area Download PDFInfo
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- CN209493962U CN209493962U CN201822001474.4U CN201822001474U CN209493962U CN 209493962 U CN209493962 U CN 209493962U CN 201822001474 U CN201822001474 U CN 201822001474U CN 209493962 U CN209493962 U CN 209493962U
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Abstract
The utility model belongs to offshore wind power foundation technical field, discloses a kind of long-short pile bucket foundation suitable for deep water complex sea area, including cylinder top cover and sheath skirt board group at cylindrical structure, cylindrical structure is internally provided with several wing tanks；Circumferential direction has been evenly arranged several stubs inside cylindrical structure, and each stub is arranged inside wing tank；Stub top is flushed with cylinder top cover, and cylinder top cover corresponds to the aperture of stub top port, and stub bottom end is substantially flush with sheath skirt plate；Each stub is nested inside with long stake, and the stake top truncation of bucket foundation long stake afterwards in place is flushes with cylinder top cover, and capping is handled together for long stake top end and stub top；Sinking cylindrical structure after long stake can be first beaten when construction, play long stake after being also possible to first sinking cylindrical structure.The utility model has that preferable anti-stability against sliding of inclining, bearing capacity is high, construction and installation are accurate, improve stability and safety that bucket foundation install in deep water complex sea area, the operation strategies that further expansion bucket foundation is installed.
Description
Technical field
The utility model belongs to offshore wind power foundation technical field, in particular to a kind of be suitable for deep water complexity
The new bucket foundation in sea area.
Background technique
With social development, global energy supply and demand contradiction becomes increasingly conspicuous, for the energy itself finiteness and
The considerations of sustainable development of its safety problem caused and country, wind energy has obtained respectively as a kind of reproducible clean energy resource
The favor of state.China coastline is wide, possesses offshore wind energy resource abundant.Currently, China's offshore wind power development is mainly concentrated
In shallow sea water, but most of shallow sea water features as poor geologic condition, and country in carrying out Sustainable Development Planning to coastal waters sea
There are certain protection and limitation, these will all promote China's Wind Power Generation from shallow water to deep-water developments for the exploitation in domain.
Deep water Wind Power Generation is trend of the times, is had a extensive future, but deep water sea area complicated geology, environmental load are complicated and changeable,
It is required that foundation structure has biggish bearing capacity and antiskid stability against overturning, and by the shadow of environmental load in the installation of deep water sinking
It rings, bucket foundation is swung greatly, brings huge challenge to basic precisely installation.These have resulted in deep water sea area wind-powered electricity generation at this stage and have opened
Degree of raising difficult questions is big.
Utility model content
To be solved in the utility model is offshore wind farm bucket foundation in the poor sea area of deep water complicated geological and severe stormy waves
It flows under environmental load, the technical issues of sink smoothly precisely install and basic stability is inadequate and Lack of support, provides one
Kind be suitable for the long-short pile bucket foundation of deep water complex sea area, the foundation structure form have preferable anti-stability against sliding of inclining,
Bearing capacity is high, construction and installation are accurate, improves stability and safety that bucket foundation is installed in deep water complex sea area, further
Expand the operation strategies of bucket foundation installation.
In order to solve the above-mentioned technical problem, the utility model is achieved by technical solution below:
A kind of long-short pile bucket foundation suitable for deep water complex sea area, including cylinder top cover and sheath skirt board group at cartridge type knot
Structure, the cylindrical structure are internally provided with several wing tanks；Circumferential direction has been evenly arranged several stubs inside the cylindrical structure, each
The stub is arranged inside the wing tank；The stub top is flushed with the cylinder top cover, and the cylinder top cover corresponds to
The stub top port aperture, the stub bottom end stretch out in sheath skirt board bottom end 0-2cm；It is embedding inside each stub
It is cased with long stake, the stake top truncation of the long stake after bucket foundation is in place is flushes with the cylinder top cover, the long stake top end and institute
Stating stub top, capping is handled together.
Further, the quantity of the wing tank is 3-6.
Further, the outer diameter of the stub is 4-7m, wall thickness 1-2cm.
Further, the outer diameter of the long stake is less than the internal diameter 0.5-1cm of the stub, and the wall thickness of the long stake is 5-
8cm。
Further, the cylinder top cover, the sheath skirt plate, the subdivision plate, the stub, which are welded to each other, constitutes the cylinder
Type structure.
The beneficial effects of the utility model are:
The utility model provides a kind of long-short pile bucket foundation and its construction method suitable for deep water complex sea area, makes
The effect for preventing bucket foundation excessive in the horizontal direction amplitude of oscillation, and stub, long stake and the soil body are played in long stake injection supporting course
Side friction and stub, long stake in conjunction with cylinder top cover after the presence of stake end bottom bearing substantially increase the carrying of bucket foundation
Power and antiskid stability against overturning are conducive to save the construction time to can reduce sheath skirt plate embedded depth to a certain extent
And cost；Stub and long stake are openings in installation of sinking, and the generation of soil compaction phenomenon can be reduced, to reduce soil discharge quantity；
After cutting stake capping processing, long stake and bucket foundation become an entirety, and bucket foundation superstructure load passes through cylinder top cover, short
Ground is passed in stake, long stake, can effectively solve the problem that the problems in junction stress collection between bucket foundation and superstructure, very big
It can prevent sheath skirt plate from buckling occurs in degree, while also increase the bearing capacity and stability of bucket foundation；Long stake is played in the ban again
When sinking cylindrical structure, long stake can also play the role of orientation direction installation.Cylindrical structure is a kind of wide shallow formula structure, is had
Resistance to capsizing is strong, is suitable for the features such as deep water and unfavorable foundation, and to the wide of long stake quantity, type, diameter and depth of penetration
General selection and the benefit of the exploitation to deep water complex sea area wind-resources can be greatly improved to the different designs of the diameter of subdivision in cylinder, cylinder
With.
Shown in sum up, the utility model is very suitable to deep water complex sea area Wind Power Generation, is able to solve offshore wind farm cartridge type
Basis motor imagination under the loads such as stormy waves stream is larger and deep water complex sea area construction and installation are not accurate enough, antiskid, the anti-energy that inclines
The problems such as power is low and Lack of support.Therefore, cylinder-shaped foundation structure of the length stake of the utility model in conjunction with stub nesting, stake cylinder
With huge application value.
Detailed description of the invention
Fig. 1 is the schematic perspective view that do not beat before long stake of long-short pile bucket foundation provided by the utility model；
Fig. 2 is the schematic perspective view of long-short pile bucket foundation provided by the utility model beaten after long stake；
Fig. 3 is that long-short pile bucket foundation provided by the utility model cuts stake capping treated stereochemical structure signal
Figure.In above-mentioned figure: 1, sheath skirt plate, 2, subdivision plate, 3, main cabin, 4, wing tank, 5, stub, 6, long stake, 7, cylinder top cover, 8, cover board.
Specific embodiment
For the summary of the invention, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and cooperates
Detailed description are as follows for attached drawing:
If Fig. 1 to Fig. 3 shows, present embodiment discloses a kind of long-short pile bucket foundations suitable for deep water complex sea area, main
It to include cylinder top cover 7, sheath skirt plate 1, subdivision plate 2, stub 5, long stake 6, cover board 8.
Cylinder top cover 7, the composition of the sheath skirt plate 1 semiclosed cylindrical structure that Open Side Down, cylindrical structure are internally provided with subdivision plate
2, cylindrical structure inner space is divided into four semiclosed cabins, it is around wing tank 4 that center, which is main cabin 3,.Inside each wing tank 4
It is provided with a stub 5,5 top of stub is flushed with cylinder top cover 7, and cylinder top cover 7 corresponds to 5 top port aperture of stub；In order to
It is convenient for carrying out cylindrical structure transportation by driving in the transport phase, 1 bottom end 0-2m of sheath skirt plate is stretched out in 5 bottom end of stub.The outer diameter of stub 5 generally exists
Within the scope of 4-7m, wall thickness 1-2cm, mainly due to the overall stability of cylindrical structure and when preventing the excessive sinking of its diameter
Occurs soil plug in stake.
4 quantity of wing tank of above-mentioned cylindrical structure is generally 3-6, and the annular on cylindrical structure of stub 5 is evenly arranged,
A stub 5 can be set in each wing tank 4, it can also be at interval of one (such as six wing tank 4 of stub 5 of setting in a wing tank 4
In the case where).
Cylinder top cover 7, sheath skirt plate 1, subdivision plate 2, stub 5 are steel, and connection type to each other is generally welded.Stub
Welding or flanged joint can be used between 5 and cylinder top cover 7.
The quantity of long stake 6 is identical as stub 5, and long stake 6 forms with stub 5 nested by passing through in stub 5, and long stake 6 is in length
After stake bucket foundation is in place, to flush with cylinder top cover 7, long 6 top of stake and 5 top of stub pass through together for the stake top truncation of long stake 6
Cover board 8 or concrete capping processing.Cover board 8 can be pre-formed disk shape steel plate body, and 8 diameter of cover board is consistent with 5 outer diameter of stub,
The seam Underwater Welding between cover board 8 and cylinder top cover 7 is closed again after capping；It can also scene progress underwater concreting envelope
Lid.It is all opening in 6 sinking installation process of stub 5 and long stake, after cutting stake capping processing, stake top closing, with the formation of cylinder top cover 7
One.
Long stake 6 is also steel, and long stake 6 is usually by hammering method by the supporting course of stake end injection seabed, and length is according to engineering
Middle supporting course position and sea water advanced reasonable determination.The wall thickness of long stake 6 is set as 5-8cm, guarantees its bearing capacity, prevents from sending out
Raw buckling and deformation.The outer diameter of long stake 6 is slightly less than the internal diameter of stub 5 to facilitate installation, and the outer diameter of general long stake 6 is less than stub 5
Internal diameter 0.5-1cm.
The long-short pile bucket foundation of the utility model by stub 5 be inserted into soil and 6 injection supporting course of long stake in, Neng Gourang
The large-scale soil body participates in resisting horizontal force and moment of flexure, gives full play to the horizontal direction drag of foundation soil body, while stub 5, long stake 6
With 7 integrally connected of cylinder top cover, the horizontal bearing performance of bucket foundation is improved, improves bucket foundation resistance to capsizing, so that tubular
The design of structure can not have to the factor for being wholly constrained to geological conditions.
The construction method of the above-mentioned long-short pile bucket foundation suitable for deep water complex sea area, can be using after first playing long stake 6
The method of sinking cylindrical structure, can also be using the method for playing long stake 6 after first sinking cylindrical structure:
A. the method for first beating sinking cylindrical structure after long stake 6 carries out in accordance with the following steps:
The first step, land fabrication and assembling: by land that cylinder top cover 7, sheath skirt plate 1, subdivision plate 2, stub 5, long stake 6 is prefabricated
It completes, and cylinder top cover 7, sheath skirt plate 1, subdivision plate 2, stub 5 is subjected to assembly welding into cylindrical structure.
Basis delivery: the cylindrical structure of assembled formation and prefabricated length stake 6 are transported to the installation of deep water wind power plant by second step.
Third step, deep water sinking installation: by hammering method by long 6 bottom end injection seabed supporting course of stake, then by cartridge type knot
Structure passes through long stake 6 with its stub 5 and carries out sinking installation, until embedded depth of the cylindrical structure sinking to engineering design.
4th step cuts stake capping: carrying out underwater cutting pile to the stake top of long stake 6, keeps long 6 stake top of stake and cylinder top cover 7 flat
Together, underwater capping processing is then carried out to long 6 top of stake and 5 top of stub together, keeps stake cylinder integrated.
B. the method that long stake 6 is played after first sinking cylindrical structure carries out in accordance with the following steps:
The first step, land fabrication and assembling: by land that cylinder top cover 7, sheath skirt plate 1, subdivision plate 2, stub 5, long stake 6 is prefabricated
It completes, and cylinder top cover 7, sheath skirt plate 1, subdivision plate 2, stub 5 is subjected to assembly welding into cylindrical structure.
Basis delivery: the cylindrical structure of assembled formation and prefabricated length stake 6 are transported to the installation of deep water wind power plant by second step.
Third step, the installation of deep water sinking: by the embedded depth of cylindrical structure sinking to engineering design, then will by hammering method
Long stake 6 penetrates the stub 5 of cylindrical structure, until in long 6 bottom end injection seabed supporting course of stake；
4th step cuts stake capping: carrying out underwater cutting pile to the stake top of long stake 6, keeps long 6 stake top of stake and cylinder top cover 7 flat
Together, underwater capping processing is then carried out to long 6 top of stake and 5 top of stub together, keeps stake cylinder integrated.
In above two construction method, the specific method of underwater cutting pile can be diamond disc sawing, underwater oxygen
Arc patterning method etc. covers prefabricated discoid steel cover board 8 and shuts after cutting stake, then by the seam water between cover board 8 and cylinder top cover 7
Lower welded closure live can also carry out underwater concreting capping after cutting stake.
Although being described above in conjunction with preferred embodiment of the attached drawing to the utility model, the utility model is not
It is confined to above-mentioned specific embodiment, the above mentioned embodiment is only schematical, is not restrictive, ability
The those of ordinary skill in domain is not departing from present inventive concept and scope of the claimed protection under the enlightenment of the utility model
In the case of, the specific transformation of many forms can also be made, these are belonged within the protection scope of the utility model.
Claims (5)
1. a kind of long-short pile bucket foundation suitable for deep water complex sea area, including cylinder top cover and sheath skirt board group at cartridge type knot
Structure, the cylindrical structure are internally provided with several wing tanks；If it is characterized in that, circumferential direction has been evenly arranged inside the cylindrical structure
Dry stub, each stub are arranged inside the wing tank；The stub top is flushed with the cylinder top cover, and the cylinder
Top cover corresponds to the stub top port aperture, and the stub bottom end stretches out in sheath skirt board bottom end 0-2cm；It is each described
Stub is nested inside with long stake, and the stake top truncation of the long stake after bucket foundation is in place is flushes with the cylinder top cover, the length
Capping is handled together for stake top end and the stub top.
2. a kind of long-short pile bucket foundation suitable for deep water complex sea area according to claim 1, which is characterized in that institute
The quantity for stating wing tank is 3-6.
3. a kind of long-short pile bucket foundation suitable for deep water complex sea area according to claim 1, which is characterized in that institute
The outer diameter for stating stub is 4-7m, wall thickness 1-2cm.
4. a kind of long-short pile bucket foundation suitable for deep water complex sea area according to claim 1, which is characterized in that institute
The outer diameter for stating long stake is less than the internal diameter 0.5-1cm of the stub, and the wall thickness of the long stake is 5-8cm.
5. a kind of long-short pile bucket foundation suitable for deep water complex sea area according to claim 1, which is characterized in that institute
It states a top cover, the sheath skirt plate, the stub and is welded to each other the composition cylindrical structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822001474.4U CN209493962U (en) | 2018-11-30 | 2018-11-30 | A kind of long-short pile bucket foundation suitable for deep water complex sea area |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822001474.4U CN209493962U (en) | 2018-11-30 | 2018-11-30 | A kind of long-short pile bucket foundation suitable for deep water complex sea area |
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| CN209493962U true CN209493962U (en) | 2019-10-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440805A (en) * | 2018-11-30 | 2019-03-08 | 天津大学 | A kind of long-short pile bucket foundation and its construction method suitable for deep water complex sea area |
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- 2018-11-30 CN CN201822001474.4U patent/CN209493962U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440805A (en) * | 2018-11-30 | 2019-03-08 | 天津大学 | A kind of long-short pile bucket foundation and its construction method suitable for deep water complex sea area |
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