CN106013213A - Offshore wind power pile foundation capable of increasing unit capacity and using method thereof - Google Patents
Offshore wind power pile foundation capable of increasing unit capacity and using method thereof Download PDFInfo
- Publication number
- CN106013213A CN106013213A CN201610590202.5A CN201610590202A CN106013213A CN 106013213 A CN106013213 A CN 106013213A CN 201610590202 A CN201610590202 A CN 201610590202A CN 106013213 A CN106013213 A CN 106013213A
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- linkage section
- offshore wind
- basic
- pile foundation
- pile
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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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to the field of offshore wind power equipment, and aims at providing an offshore wind power pile foundation capable of increasing the unit capacity and a using method thereof. The offshore wind power pile foundation capable of increasing the unit capacity comprises a single pile, a basic connection section, horizontal steel pipes, inclined steel pipes and three or more vertical skirt piles. The single pile is vertically arranged. The basic connection section is fixed to the top of the single pile. The vertical skirt piles are evenly distributed on the peripheral side of the single pile. The side walls of the vertical skirt piles are connected with the single pile through the horizontal pipes. The tops of the vertical skirt piles are connected with the basic connection section through the inclined steel pipes. The offshore wind power pile foundation has the advantages that the structure horizontal rigidity is increased by the adoption of the single pile and the vertical skirt piles, and the problems that a single foundation structure is too large in diameter due to the poor shallow layer soil bearing capacity and existing construction equipment cannot meet construction requirements are solved.
Description
Technical field
The present invention relates to offshore wind power equipment field, particularly to a kind of offshore wind farm increasing single-machine capacity
Pile foundation and using method thereof.
Background technology
Look back the development of the land wind-powered electricity generation of China, the most occurred that the little unit of large area changes the skill of large sized unit
Changing, so because initial stage basic engineering is inconsiderate, technological transformation costs dearly.China's seashore line length, wind energy on the sea
Aboundresources, but it is the most ripe to be limited by current domestic Large Copacity offshore wind farm machine set technology, sea turn
The development of electricity also encounters the problem that land wind-powered electricity generation is similar.Can only install little in the preferable region of wind-resources at present
Capacity offshore wind turbine, causes the phenomenon that offshore wind energy resource cannot be fully utilized, have impact on
The economic well-being of workers and staff of developer.And offshore wind farm is limited by sea-floor relief complexity, offshore construction difficulty and construction window
The problems such as the mouth phase is short, develop the slowest.
Summary of the invention
It is an object of the invention to overcome drawbacks described above, it is provided that one can be saved development cost and adapt to sea
The offshore wind farm pile foundation of the increased single-machine capacity of end complexity landform and using method thereof.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of offshore wind farm pile foundation increasing single-machine capacity, including single pile, basic linkage section, horizontal steel
Pipe, oblique steel pipe and the lifting type jacket of more than three, described single pile is vertically arranged, and described basic linkage section is fixed
At single pile top, described lifting type jacket is evenly distributed on single pile week side, and described lifting type jacket sidewall passes through level
Steel pipe is connected with single pile, and described lifting type jacket top is connected with basic linkage section by oblique steel pipe, described substantially
Linkage section top is provided with the first flange.
Further, also including general-purpose linkage section, described general-purpose linkage section is fixed on the first flange, described
General-purpose linkage section top is provided with the second flange for being connected with tower.
Further, also including assisting skirt piles, brace and the second linkage section, described first linkage section is arranged on
On first flange, described lifting type jacket lateral surface is vertically provided with steel construction slideway, described auxiliary skirt
Stake is arranged in steel construction slideway, and described auxiliary skirt piles top is connected by brace and the second linkage section.
Further, the cooperation face of described steel construction slideway is circular arc.
In order to solve above-mentioned technical problem, the method that the present invention uses is:
The using method of a kind of offshore wind farm pile foundation increasing single-machine capacity, comprises the following steps:
Step 1, lifting type jacket is uniformly connected to single pile week side, at lifting type jacket lateral surface by horizontal steel tube
Installing steel construction slideway, install basic linkage section at single pile top, oblique steel pipe and base are passed through in lifting type jacket top
This linkage section connects, and forms basic component;
Step 2, basic component transport is on-the-spot to offshore construction, basic component is sunk down into sea bed face leveling;
Basic component is driven piles by step 3, employing piling machine, makes basic component height drop to design altitude,
Interim inserted link is installed in steel construction slideway, general-purpose linkage section is installed, at general-purpose even on basic linkage section top
Tower is installed on the section of connecing top, completes basic component and installs.
The beneficial effects of the present invention is: 1, use single pile to add lifting type jacket, increase structure level rigidity, solve
Determine owing to shallow-layer soil bearing capacity difference causes single-pile foundation structure diameter construction equipment excessive, existing to expire
The problems such as foot construction requirement;2, use general-purpose linkage section to be suitable for the large sized unit of different capabilities, save
Unit dilatation needs the expense on newly-built basis;3, all reserve steel construction slideway outside lifting type jacket and be easy to the unit later stage
Increase capacity, and the interim inserted link of slideway interpolation can be used for basic crashproof;4, all parts are the most integral prefabricated
Assemble, be transported to offshore installation construction the most again, solve the contradiction that offshore construction window phase is short;5, vertical skirt
The length of stake and auxiliary skirt piles all can adjust according to sea-floor relief, adapts to sea bottom complex terrain.
Accompanying drawing explanation
Fig. 1 is the front view that the embodiment of the present invention can increase the offshore wind farm pile foundation of 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 of single-machine capacity installs additional;
Fig. 3 is the top view that the embodiment of the present invention can increase the offshore wind farm pile foundation of single-machine capacity.
Label declaration:
1, single pile;2, basic linkage section;3, horizontal steel tube;4, oblique steel pipe;5, lifting type jacket;
6, general-purpose linkage section;7, auxiliary skirt piles;8, brace;9, the second linkage section;51, steel construction slideway.
Detailed description of the invention
By describing the technology contents of the present invention, structural feature in detail, being realized purpose and effect, below in conjunction with
Embodiment also coordinates accompanying drawing to be explained in detail.
The design of most critical of the present invention is: uses single pile to add lifting type jacket, increases structure level rigidity, solves
Determine owing to shallow-layer soil bearing capacity difference causes single-pile foundation structure diameter construction equipment excessive, existing to expire
The problems such as foot construction requirement;Use general-purpose linkage section to be suitable for the large sized unit of different capabilities, save machine
Group dilatation needs the expense on newly-built basis;All reserve steel construction slideway outside lifting type jacket and be easy to the increase of unit later stage
Capacity, and the interim inserted link of slideway interpolation can be used for basis crashproof;The most integral prefabricated assembling of all parts,
It is transported to offshore installation construction the most again, solves the contradiction that offshore construction window phase is short;Lifting type jacket and auxiliary
The length of skirt piles all can adjust according to sea-floor relief, adapts to sea bottom complex terrain.
Refer to shown in Fig. 1 to Fig. 3, the offshore wind farm pile foundation of the increased single-machine capacity of the present embodiment,
Including single pile 1, basic linkage section 2, horizontal steel tube 3, oblique steel pipe 4 and the lifting type jacket 5 of more than three,
Described single pile 1 is vertically arranged, and described basic linkage section 2 is fixed on single pile 1 top, described lifting type jacket 5
Being evenly distributed on 1 week side of single pile, described lifting type jacket 5 sidewall is connected with single pile 1 by horizontal steel tube 3,
Described lifting type jacket 5 top is connected with basic linkage section 2 by oblique steel pipe 4, and described basic linkage section 2 pushes up
Portion is provided with the first flange.
The offshore wind farm pile foundation using method of the increased single-machine capacity of the present embodiment, comprises the following steps:
Step 1, lifting type jacket 5 is uniformly connected to 1 week side of single pile, at lifting type jacket by horizontal steel tube 3
5 lateral surface install steel construction slideway 51, install basic linkage section 2, lifting type jacket 5 top at single pile 1 top
It is connected with basic linkage section 2 by oblique steel pipe 4, forms basic component;
Step 2, basic component transport is on-the-spot to offshore construction, basic component is sunk down into sea bed face leveling;
Basic component is driven piles by step 3, employing piling machine, makes basic component height drop to design altitude,
Interim inserted link is installed in steel construction slideway 51, general-purpose linkage section 6 is installed on basic linkage section 2 top,
Tower is installed on general-purpose linkage section 6 top, completes basic component and installs, and wherein interim inserted link is rubber rods or bubble
Foam bar.
When more capacity offshore wind farm unit changed by needs, the following step also can be implemented:
Step 4, interim inserted link is pulled out and is removed general-purpose linkage section 6 and tower, and to steel construction slideway 51
Medial wall cleaning processes;
Step 5, the second linkage section 9 is arranged on basic linkage section 2, auxiliary skirt piles 7 are arranged on steel knot
In structure slideway 51, in steel construction slideway 51, grouting or binding material, install new tower on the second linkage section 9
Cylinder.
Wherein, single pile 1 diameter of phi 3000~7000mm, wall thickness 40~100mm;Lifting type jacket 5 and auxiliary
Skirt piles 7 diameter of phi 1000~2500m, wall thickness 30~60mm;Tiltedly steel pipe 4 and brace 8 diameter of phi
1000~2000mm, wall thickness 20~50mm, is 10~50 ° with the angle of single pile 1.
After changing precast segment, more capacity unit (can be 4~10MW) can be carried
Further, when installing auxiliary skirt piles 7, brace 8 and the second linkage section 9, need to be at horizontal steel tube 3
On weight is set, to adjust the natural frequency of vibration of single unit system, can meet and change the total tune after unit,
The upper surface of basic linkage section 2 is positioned at AMSL 2~3m.
Knowable to foregoing description, the beneficial effects of the present invention is: 1, use single pile 1 to add lifting type jacket 5,
Increase structure level rigidity, solve owing to shallow-layer soil bearing capacity difference causes single pile 1 base structure diameter mistake
Greatly, existing construction equipment cannot meet the problems such as construction requirement;2, general-purpose linkage section 6 is used to be suitable for difference
The large sized unit of capacity, saves unit dilatation and needs the expense on newly-built basis;3, outside lifting type jacket 5 all
Reserved steel construction slideway 51 is easy to unit later stage increase capacity, and the interim inserted link of slideway interpolation can be used for basis and prevents
Hit;4, the most integral prefabricated assembling of all parts, is transported to offshore installation construction the most again, solves sea
The contradiction that construction window phase is short;5, hang oneself weight at horizontal steel tube 3, the overall association after changing unit can be met
Tonality, adjusts the natural frequency of vibration;6, the length of lifting type jacket 5 and auxiliary skirt piles 7 all can be adjusted according to sea-floor relief
Whole, adapt to sea bottom complex terrain.
Further, also include that general-purpose linkage section 6, described general-purpose linkage section 6 are fixed on the first flange, institute
State general-purpose linkage section 6 top and be provided with the second flange for being connected with tower.
Seen from the above description, use general-purpose linkage section 6 to be suitable for the large sized unit of different capabilities, save
Unit dilatation needs the expense on newly-built bases.
Further, also include assisting skirt piles 7, brace 8 and the second linkage section 9, described first linkage section peace
Being contained on the first flange, described lifting type jacket 5 lateral surface is vertically provided with steel construction slideway 51, institute
Stating auxiliary skirt piles 7 to be arranged in steel construction slideway 51, brace 8 and second is passed through at described auxiliary skirt piles 7 top
Linkage section 9 connects.
Seen from the above description, when needs increase single-machine capacity, auxiliary skirt piles 7, brace 8 and the can be installed additional
Two linkage sections 9, can effectively utilize existing structure, and dilatation expense is low, and difficulty of construction is little.
Further, the cooperation face of described steel construction slideway 51 is circular arc.
Seen from the above description, the cooperation face of steel construction slideway 51 is circular arc, when coordinating with auxiliary skirt piles 7
Contact area is big, and structure is more firm.
Refer to shown in Fig. 1 to Fig. 3, embodiments of the invention one are:
A kind of offshore wind farm pile foundation increasing single-machine capacity, including single pile 1, basic linkage section 2, level
Steel pipe 3, oblique steel pipe 4 and the lifting type jacket 5 of more than three, described single pile 1 is vertically arranged, and described substantially connects
The section of connecing 2 is fixed on single pile 1 top, and described lifting type jacket 5 is evenly distributed on 1 week side of single pile, described vertically
Skirt piles 5 sidewall is connected with single pile 1 by horizontal steel tube 3, and oblique steel pipe 4 is passed through at described lifting type jacket 5 top
Being connected with basic linkage section 2, described basic linkage section 2 top is provided with the first flange, also includes that general-purpose connects
Section 6, described general-purpose linkage section 6 is fixed on the first flange, described general-purpose linkage section 6 top be provided with for
The second flange that tower connects, also includes assisting skirt piles 7, brace 8 and the second linkage section 9, and described first even
The section of connecing is arranged on the first flange, and described lifting type jacket 5 lateral surface is vertically provided with steel construction slideway
51, described auxiliary skirt piles 7 are arranged in steel construction slideway 51, and brace 8 is passed through at described auxiliary skirt piles 7 top
Being connected with the second linkage section 9, the cooperation face of described steel construction slideway 51 is circular arc.
In sum, the offshore wind farm pile foundation of the increased single-machine capacity that the present invention provides and using method thereof,
1, use single pile to add lifting type jacket, increase structure level rigidity, solve owing to shallow-layer soil bearing capacity difference is led
Cause single-pile foundation structure diameter construction equipment excessive, existing and cannot meet the problems such as construction requirement;2, ten thousand are used
It is suitable for the large sized unit of different capabilities with linkage section, saves unit dilatation and need the expense on newly-built basis;3、
All reserve steel construction slideway outside lifting type jacket and be easy to unit later stage increase capacity, and the interim inserted link of slideway interpolation
Can be used for basis crashproof;4, the most integral prefabricated assembling of all parts, is transported to offshore installation construction the most again,
Solve the contradiction that offshore construction window phase is short;5, hang oneself weight at horizontal steel tube, after replacing unit can be met
Total tune, adjust the natural frequency of vibration;6, the length of lifting type jacket and auxiliary skirt piles all can be according to ground, seabed
Shape adjusts, and adapts to sea bottom complex terrain.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every profit
The equivalent structure made by description of the invention and accompanying drawing content or equivalence flow process conversion, or directly or indirectly transport
It is used in other relevant technical fields, is the most in like manner included in the scope of patent protection of the present invention.
Claims (8)
1. the offshore wind farm pile foundation that can increase single-machine capacity, it is characterised in that: include single pile, basic
Linkage section, horizontal steel tube, oblique steel pipe and the lifting type jacket of more than three, described single pile is vertically arranged, described
Basic linkage section is fixed on single pile top, and described lifting type jacket is evenly distributed on single pile week side, described vertical skirt
Stake sidewall is connected with single pile by horizontal steel tube, and described lifting type jacket top is by oblique steel pipe and basic linkage section
Connecting, described basic linkage section top is provided with the first flange.
The offshore wind farm pile foundation increasing single-machine capacity the most according to claim 1, it is characterised in that:
Also include that general-purpose linkage section, described general-purpose linkage section are fixed on the first flange, described general-purpose linkage section top
It is provided with the second flange for being connected with tower.
The offshore wind farm pile foundation increasing single-machine capacity the most according to claim 1, it is characterised in that:
Also including assisting skirt piles, brace and the second linkage section, described first linkage section is arranged on the first flange, institute
Stating lifting type jacket lateral surface and be vertically provided with steel construction slideway, described auxiliary skirt piles are arranged on steel construction
In slideway, described auxiliary skirt piles top is connected by brace and the second linkage section.
The offshore wind farm pile foundation increasing single-machine capacity the most according to claim 3, it is characterised in that:
The cooperation face of described steel construction slideway is circular arc.
5. the using method of the offshore wind farm pile foundation that can increase single-machine capacity, it is characterised in that include
Following steps:
Step 1, lifting type jacket is uniformly connected to single pile week side, at lifting type jacket lateral surface by horizontal steel tube
Installing steel construction slideway, install basic linkage section at single pile top, oblique steel pipe and base are passed through in lifting type jacket top
This linkage section connects, and forms basic component;
Step 2, basic component transport is on-the-spot to offshore construction, basic component is sunk down into sea bed face leveling;
Basic component is driven piles by step 3, employing piling machine, makes basic component height drop to design altitude,
Interim inserted link is installed in steel construction slideway, general-purpose linkage section is installed, at general-purpose even on basic linkage section top
Tower is installed on the section of connecing top, completes basic component and installs.
The using method of the offshore wind farm pile foundation increasing single-machine capacity the most according to claim 5,
It is characterized in that, when more capacity offshore wind farm unit changed by needs, further comprising the steps of:
Step 4, interim inserted link is pulled out and is removed general-purpose linkage section and tower, and to steel construction slideway medial wall
Cleaning processes;
Step 5, the second linkage section is arranged on basic linkage section, auxiliary skirt piles are arranged on steel construction slideway
In, in steel construction slideway, grouting or binding material, install new tower on the second linkage section.
The using method of the offshore wind farm pile foundation increasing single-machine capacity the most according to claim 5,
It is characterized in that: the upper surface of described basic linkage section is positioned at AMSL 2~3m.
The using method of the offshore wind farm pile foundation increasing single-machine capacity the most according to claim 5,
It is characterized in that: described interim inserted link is rubber rods or foam bar.
Priority Applications (1)
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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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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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CN106013213B CN106013213B (en) | 2018-05-25 |
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Cited By (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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CN105780806A (en) * | 2014-12-24 | 2016-07-20 | 广州华申建设工程管理有限公司 | Offshore wind turbine foundation for long-leg jacket of drilling piles and construction method of offshore wind turbine foundation |
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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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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