CN106013213B - A kind of offshore wind farm pile foundation and its application method for increasing single-machine capacity - Google Patents
A kind of offshore wind farm pile foundation and its application method for increasing single-machine capacity Download PDFInfo
- Publication number
- CN106013213B CN106013213B CN201610590202.5A CN201610590202A CN106013213B CN 106013213 B CN106013213 B CN 106013213B CN 201610590202 A CN201610590202 A CN 201610590202A CN 106013213 B CN106013213 B CN 106013213B
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- China
- Prior art keywords
- linkage section
- lifting type
- basic
- type jacket
- offshore wind
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Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/16—Foundations formed of separate piles
-
- 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
- E02D27/44—Foundations for machines, engines or ordnance
Abstract
The present invention relates to offshore wind power equipment fields, it is designed to provide a kind of offshore wind farm pile foundation and its application method for increasing single-machine capacity, the offshore wind farm pile foundation and its application method for increasing single-machine capacity, including single pile, basic linkage section, horizontal steel tube, oblique steel pipe and the lifting type jacket of three or more, the single pile is vertically arranged, the basic linkage section is fixed at the top of single pile, the lifting type jacket is evenly distributed on single pile side, the lifting type jacket side wall is connected by horizontal steel tube with single pile, it is connected at the top of the lifting type jacket by oblique steel pipe with basic linkage section.The beneficial effects of the present invention are：Using single pile plus lifting type jacket, increase structure level rigidity, solve since shallow-layer soil bearing capacity difference leads to problems such as that single-pile foundation structure diameter is excessive, existing construction equipment can not meet construction requirement.
Description
Technical field
The present invention relates to offshore wind power equipment field, more particularly to a kind of offshore wind farm pile foundation for increasing single-machine capacity
And its application method.
Background technology
The development of the land wind-powered electricity generation in China is looked back, has occurred the technological transformation that the small unit of large area replaces large sized unit at present, so
Because initial stage basic engineering is inconsiderate, technological transformation costs dearly.China's seashore line length, offshore wind energy resource enrich, however restricted
It is not mature enough in current domestic large capacity offshore wind farm machine set technology, it is similar that the development of offshore wind farm also encounters land wind-powered electricity generation
The problem of.Low capacity offshore wind turbine can only be installed in wind-resources preferable region at present, cause wind energy on the sea money
The phenomenon that source can not be fully utilized affects the economic well-being of workers and staff of developer.And offshore wind farm is limited by sea-floor relief complexity, sea
The problems such as upper constructional difficulties and short construction window phase, development are relatively slow always.
The content of the invention
It is an object of the invention to overcome drawbacks described above, development cost can be saved and adapt to sea bottom complex by providing one kind
The offshore wind farm pile foundation and its application method that increase single-machine capacity of landform.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of offshore wind farm pile foundation for increasing single-machine capacity, including single pile, basic linkage section, horizontal steel tube, oblique steel
Pipe and the lifting type jacket of three or more, the single pile are vertically arranged, and the basic linkage section is fixed at the top of single pile, described vertical
Skirt piles are evenly distributed on single pile side, and the lifting type jacket side wall is connected by horizontal steel tube with single pile, the lifting type jacket top
Portion is connected by oblique steel pipe with basic linkage section, and first flange is equipped at the top of the basic linkage section.
Further, general-purpose linkage section is further included, the general-purpose linkage section is fixed in first flange, the general-purpose connection
Section top is equipped with the second flange being connected with tower.
Further, auxiliary skirt piles, brace and the second linkage section are further included, second linkage section is mounted on first flange
On, the lifting type jacket lateral surface is vertically provided with steel construction slideway, and the auxiliary skirt piles are mounted on steel construction slideway
In, it is connected at the top of the auxiliary skirt piles by brace with the second linkage section.
Further, the mating surface of the steel construction slideway is arc-shaped.
In order to solve the above-mentioned technical problem, the method that uses of the present invention for：
A kind of application method for the offshore wind farm pile foundation for increasing single-machine capacity, comprises the following steps：
Lifting type jacket is uniformly connected to single pile side by horizontal steel tube by step 1, and steel is installed in lifting type jacket lateral surface
Structure slideway is installed basic linkage section at the top of single pile, is connected at the top of lifting type jacket by oblique steel pipe with basic linkage section, formed
Basic component；
Step 2 transports basic component to offshore construction scene, and basic component is sunk down into sea bed face and leveling；
Step 3 drives piles to basic component using piling machine, basic component is made highly to drop to design altitude, in steel
The interim inserted link of installation in structure slideway, general-purpose linkage section is installed on basic linkage section top, and tower is installed on general-purpose linkage section top
Cylinder completes basic component installation.
The beneficial effects of the present invention are：1st, lifting type jacket is added using single pile, increases structure level rigidity, solve due to
Shallow-layer soil bearing capacity difference leads to problems such as that single-pile foundation structure diameter is excessive, existing construction equipment can not meet construction requirement；
2nd, the large sized unit of different capabilities is suitable for using general-purpose linkage section, the expense on basis need to be created by saving unit dilatation；3、
Reserved steel construction slideway increases capacity convenient for the unit later stage on the outside of lifting type jacket, and the interim inserted link of slideway interpolation can be used for basis
Anticollision；4th, all components integral prefabricated assembling by land, is then transported to offshore installation construction again, solves offshore construction window phase
Short contradiction；5th, the length of lifting type jacket and auxiliary skirt piles can be adjusted according to sea-floor relief, adapt to sea bottom complex terrain.
Description of the drawings
Fig. 1 is the front view for the offshore wind farm pile foundation that the embodiment of the present invention can increase single-machine capacity；
Fig. 2 is that the embodiment of the present invention can increase the front view after the offshore wind farm pile foundation installation of single-machine capacity；
Fig. 3 is the top view for the offshore wind farm pile foundation that the embodiment of the present invention can increase single-machine capacity.
Label declaration：
1st, single pile；2nd, basic linkage section；3rd, horizontal steel tube；4th, oblique steel pipe；5th, lifting type jacket；6th, general-purpose linkage section；7th, it is auxiliary
Help skirt piles；8th, brace；9th, the second linkage section；51st, steel construction slideway.
Specific embodiment
In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment
And attached drawing is coordinated to be explained in detail.
The design of most critical of the present invention is：Using single pile plus lifting type jacket, increase structure level rigidity, solve due to
Shallow-layer soil bearing capacity difference leads to problems such as that single-pile foundation structure diameter is excessive, existing construction equipment can not meet construction requirement；
The large sized unit of different capabilities is suitable for using general-purpose linkage section, the expense on basis need to be created by saving unit dilatation；Vertically
Reserved steel construction slideway increases capacity convenient for the unit later stage on the outside of skirt piles, and the interim inserted link of slideway interpolation can be used for basis anti-
It hits；The integral prefabricated assembling by land of all components, is then transported to offshore installation construction, it is short to solve offshore construction window phase again
Contradiction；The length of lifting type jacket and auxiliary skirt piles can be adjusted according to sea-floor relief, adapt to sea bottom complex terrain.
Shown in please referring to Fig.1 to Fig.3, the offshore wind farm pile foundation for increasing single-machine capacity of the present embodiment, including single pile
1st, basic linkage section 2, horizontal steel tube 3, oblique steel pipe 4 and the lifting type jacket 5 of three or more, the single pile 1 are vertically arranged, the base
This linkage section 2 is fixed on 1 top of single pile, and the lifting type jacket 5 is evenly distributed on 1 side of single pile, and 5 side wall of lifting type jacket leads to
It crosses horizontal steel tube 3 to be connected with single pile 1,5 top of lifting type jacket is connected by oblique steel pipe 4 with basic linkage section 2, described basic
2 top of linkage section is equipped with first flange.
The offshore wind farm pile foundation application method for increasing single-machine capacity of the present embodiment, comprises the following steps：
Lifting type jacket 5 is uniformly connected to 1 side of single pile by step 1 by horizontal steel tube 3, is pacified in 5 lateral surface of lifting type jacket
Steel loading structure slideway 51 installs basic linkage section 2 at 1 top of single pile, and 5 top of lifting type jacket is by oblique steel pipe 4 with being connected substantially
Section 2 connects, and forms basic component；
Step 2 transports basic component to offshore construction scene, and basic component is sunk down into sea bed face and leveling；
Step 3 drives piles to basic component using piling machine, basic component is made highly to drop to design altitude, in steel
The interim inserted link of installation in structure slideway 51, on basic 2 top of linkage section, installation general-purpose linkage section 6, pacifies on 6 top of general-purpose linkage section
Tower is filled, completes basic component installation, wherein interim inserted link is rubber rods or foam bar.
When needing replacing more capacity offshore wind farm unit, it can also implement the following steps：
Interim inserted link is pulled out and removes general-purpose linkage section 6 and tower by step 4, and clear to 51 madial wall of steel construction slideway
Clean processing；
Second linkage section 9 is mounted on basic linkage section 2 by step 5, and auxiliary skirt piles 7 are mounted on steel construction slideway 51
In, grouting or binding material, new tower is installed on the second linkage section 9 in steel construction slideway 51.
Wherein, 1 3000~7000mm of diameter of phi of single pile, 40~100mm of wall thickness；Lifting type jacket 5 and auxiliary 7 diameter of phi of skirt piles
1000~2500m, 30~60mm of wall thickness；Oblique steel pipe 4 and brace 8 1000~2000mm of diameter of phi, 20~50mm of wall thickness, with single pile
1 angle is 10~50 °.
After precast segment is replaced, more capacity unit (can be 4~10MW) can be carried
Further, when installation auxiliary skirt piles 7, brace 8 and the second linkage section 9, weight need to be set on horizontal steel tube 3
Object to adjust the natural frequency of vibration of single unit system, can meet the total tune after replacing unit, the upper surface of basic linkage section 2
Positioned at 2~3m of above average sea level.
As can be seen from the above description, the beneficial effects of the present invention are：1st, using single pile 1 plus lifting type jacket 5, constitution water is increased
Flat rigidity is solved since shallow-layer soil bearing capacity difference causes that 1 foundation structure diameter of single pile is excessive, existing construction equipment can not expire
The problems such as sufficient construction requirement；2nd, the large sized unit of different capabilities is suitable for using general-purpose linkage section 6, saving unit dilatation needs
Create the expense on basis；3rd, the reserved steel construction slideway 51 in 5 outside of lifting type jacket increases capacity convenient for the unit later stage, and in slideway
It inserts interim inserted link and can be used for basic anticollision；4th, all components integral prefabricated assembling by land, is then transported to offshore installation construction again,
Solves the short contradiction of offshore construction window phase；5th, hang oneself weight in horizontal steel tube 3, the total tune after replacing unit can be met
Property, adjust the natural frequency of vibration；6th, the length of lifting type jacket 5 and auxiliary skirt piles 7 can be adjusted according to sea-floor relief, adapt to sea bottom complex
Landform.
Further, general-purpose linkage section 6 is further included, the general-purpose linkage section 6 is fixed in first flange, and the general-purpose connects
It connects 6 top of section and is equipped with the second flange being connected with tower.
Seen from the above description, the large sized unit of different capabilities is suitable for using general-purpose linkage section 6, saves unit expansion
The expense on basis need to be created by holding.
Further, auxiliary skirt piles 7,8 and second linkage section 9 of brace are further included, second linkage section is mounted on first
On flange, 5 lateral surface of lifting type jacket is vertically provided with steel construction slideway 51, and the auxiliary skirt piles 7 are mounted on steel
In structure slideway 51,7 top of auxiliary skirt piles is connected by brace 8 with the second linkage section 9.
Seen from the above description, when needing to increase single-machine capacity, auxiliary skirt piles 7,8 and second linkage section of brace can be installed additional
9, existing structure can be efficiently used, dilatation expense is low, and difficulty of construction is small.
Further, the mating surface of the steel construction slideway 51 is arc-shaped.
Seen from the above description, the mating surface of steel construction slideway 51 is arc-shaped contact area when coordinating with auxiliary skirt piles 7
Greatly, structure is more secured.
It refer to shown in Fig. 1 to Fig. 3, the embodiment of the present invention one is：
A kind of offshore wind farm pile foundation for increasing single-machine capacity, including single pile 1, basic linkage section 2, horizontal steel tube 3, tiltedly
Steel pipe 4 and the lifting type jacket 5 of three or more, the single pile 1 are vertically arranged, and the basic linkage section 2 is fixed on 1 top of single pile,
The lifting type jacket 5 is evenly distributed on 1 side of single pile, and 5 side wall of lifting type jacket is connected by horizontal steel tube 3 with single pile 1, institute
5 top of lifting type jacket to be stated to be connected with basic linkage section 2 by oblique steel pipe 4, basic 2 top of linkage section is equipped with first flange,
General-purpose linkage section 6 is further included, the general-purpose linkage section 6 is fixed in first flange, and 6 top of general-purpose linkage section, which is equipped with, to be used for
The second flange being connected with tower, further includes auxiliary skirt piles 7,8 and second linkage section 9 of brace, and second linkage section is mounted on
In first flange, 5 lateral surface of lifting type jacket is vertically provided with steel construction slideway 51, and the auxiliary skirt piles 7 are installed
In steel construction slideway 51,7 top of auxiliary skirt piles is connected by brace 8 with the second linkage section 9, the steel construction slideway 51
Mating surface to be arc-shaped.
In conclusion the offshore wind farm pile foundation and its application method provided by the invention for increasing single-machine capacity, 1, adopt
With single pile plus lifting type jacket, increase structure level rigidity, solve since shallow-layer soil bearing capacity difference causes single-pile foundation structure
The problems such as diameter is excessive, existing construction equipment can not meet construction requirement；2nd, different capabilities are suitable for using general-purpose linkage section
Large sized unit, the expense on basis need to be created by saving unit dilatation；3rd, reserved steel construction slideway is convenient on the outside of lifting type jacket
The unit later stage increases capacity, and the interim inserted link of slideway interpolation can be used for basic anticollision；4th, integral prefabricated group by land of all components
Dress, is then transported to offshore installation construction, solves the short contradiction of offshore construction window phase again；5th, hang oneself weight in horizontal steel tube,
The total tune after replacing unit can be met, adjust the natural frequency of vibration；6th, the length of lifting type jacket and auxiliary skirt piles can basis
Sea-floor relief adjusts, and adapts to sea bottom complex terrain.
The foregoing is merely the embodiment of the present invention, are not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (5)
1. a kind of offshore wind farm pile foundation for increasing single-machine capacity, it is characterised in that：Including single pile, basic linkage section, level
Steel pipe, oblique steel pipe and the lifting type jacket of three or more, the single pile are vertically arranged, and the basic linkage section is fixed on single pile top
Portion, the lifting type jacket are evenly distributed on single pile side, and the lifting type jacket side wall is connected by horizontal steel tube with single pile, described
It is connected at the top of lifting type jacket by oblique steel pipe with basic linkage section, first flange is equipped at the top of the basic linkage section；
Auxiliary skirt piles, brace and the second linkage section are further included, second linkage section is mounted in first flange, the vertical skirt
Stake lateral surface is vertically provided with steel construction slideway, and the auxiliary skirt piles are mounted in steel construction slideway, the auxiliary skirt
Stake top portion is connected by brace with the second linkage section.
2. the offshore wind farm pile foundation according to claim 1 for increasing single-machine capacity, it is characterised in that：The steel construction
The mating surface of slideway is arc-shaped.
3. a kind of application method for the offshore wind farm pile foundation for increasing single-machine capacity, which is characterized in that comprise the following steps：
Lifting type jacket is uniformly connected to single pile side by horizontal steel tube by step 1, and steel construction is installed in lifting type jacket lateral surface
Slideway is installed basic linkage section at the top of single pile, is connected at the top of lifting type jacket by oblique steel pipe with basic linkage section, composition basis
Component；
Step 2 transports basic component to offshore construction scene, and basic component is sunk down into sea bed face and leveling；
Step 3 drives piles to basic component using piling machine, basic component is made highly to drop to design altitude, in steel construction
The interim inserted link of installation in slideway installs general-purpose linkage section on basic linkage section top, and tower is installed on general-purpose linkage section top, complete
It is installed into basic component；
It is further comprising the steps of when needing replacing more capacity offshore wind farm unit：
Interim inserted link is pulled out and removes general-purpose linkage section and tower by step 4, and to steel construction slideway madial wall cleaning treatment；
Second linkage section is mounted on basic linkage section by step 5, auxiliary skirt piles is mounted in steel construction slideway, in steel knot
Binding material is filled in structure slideway, new tower is installed on the second linkage section.
4. the application method of the offshore wind farm pile foundation according to claim 3 for increasing single-machine capacity, it is characterised in that：
The upper surface of the basic linkage section is located at 2~3m of above average sea level.
5. the application method of the offshore wind farm pile foundation according to claim 3 for increasing single-machine capacity, it is characterised in that：
The interim inserted link is rubber rods or foam bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610590202.5A CN106013213B (en) | 2016-07-25 | 2016-07-25 | A kind of offshore wind farm pile foundation and its application method for increasing single-machine capacity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610590202.5A CN106013213B (en) | 2016-07-25 | 2016-07-25 | A kind of offshore wind farm pile foundation and its application method for increasing single-machine capacity |
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| Publication Number | Publication Date |
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| CN106013213A CN106013213A (en) | 2016-10-12 |
| CN106013213B true CN106013213B (en) | 2018-05-25 |
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| CN201610590202.5A Active CN106013213B (en) | 2016-07-25 | 2016-07-25 | A kind of offshore wind farm pile foundation and its application method for increasing single-machine capacity |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826225A (en) * | 2019-03-27 | 2019-05-31 | 福建省水利水电勘测设计研究院 | Single-pile foundation for offshore wind generation set reinforces piling strtucture and construction method |
| CN112482420A (en) * | 2020-12-04 | 2021-03-12 | 武汉鑫弘博岩土工程有限公司 | Pile foundation and construction method thereof |
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| CN205954663U (en) * | 2016-07-25 | 2017-02-15 | 福建永福电力设计股份有限公司 | Marine wind power pile foundation of multiplicable single -machine capacity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| NL2005415C2 (en) * | 2010-09-28 | 2012-03-29 | Heerema Marine Contractors Nl | Improvements in manufacturing and installing multiple offshore constructions. |
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| CN200978431Y (en) * | 2006-12-13 | 2007-11-21 | 中国水利水电科学研究院 | Large-scale fan combined pile foundation adapted for silt layer seabed |
| CN103161174A (en) * | 2011-12-08 | 2013-06-19 | 华锐风电科技(集团)股份有限公司 | Offshore wind turbine generator set installation fundamental assembly |
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| CN106013213A (en) | 2016-10-12 |
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