CN108425377A - A kind of offshore steel structure high-rise pile cap blower foundation and its construction method - Google Patents
A kind of offshore steel structure high-rise pile cap blower foundation and its construction method Download PDFInfo
- Publication number
- CN108425377A CN108425377A CN201810477860.2A CN201810477860A CN108425377A CN 108425377 A CN108425377 A CN 108425377A CN 201810477860 A CN201810477860 A CN 201810477860A CN 108425377 A CN108425377 A CN 108425377A
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- Prior art keywords
- pile
- cushion cap
- central tube
- cap
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 241000826860 Trapezium Species 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 239000011150 reinforced concrete Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
Abstract
The invention discloses a kind of offshore steel structure high-rise pile cap blower foundation and its construction methods, offshore steel structure high-rise pile cap blower foundation, and using Prefabricated steel construction, it includes central tube, pile pile, sleeve and bearing sheet；Cylindric central tube is located at the middle position of entire high-rise pile cap blower foundation；Flange is provided at the top of central tube；Central tube is connected by flange with offshore wind turbine；The side of central tube is vertically connected with cushion cap riser；Cushion cap riser is right-angled trapezium；Cushion cap riser upper vertical is connected with circular cushion cap top plate；The inner ring of cushion cap top plate is disposed around the side of central tube；The lower section of central tube and cushion cap riser is connected with cushion cap bottom plate jointly；The bevel edge of cushion cap riser is connected with sleeve；Pile pile is fixed in sleeve；Pile pile is the piling bar of tubulose；The top of pile pile and sleeve are internally provided with shear key；Sleeve is connected as one with pile pile.Offshore construction of the present invention is simple and practicable, and duty cycle is short, and weight is low, economic and reliable.
Description
Technical field
The present invention relates to a kind of blower foundation more particularly to a kind of offshore steel structure high-rise pile cap blower foundation and its constructions
Method.
Background technology
Current stage, in Europe and domestic marine wind electric field development process, offshore wind turbine foundation structure type is main
Including single-pile foundation, spider basis, jacket basis, High-Rise Pile Cap Foundation, gravity type foundation and buoyant foundation and suction
Cartridge type basis etc..Wherein, High-Rise Pile Cap Foundation mostly uses the form of taper pile, that is, multiple piling bars are each passed through outside cushion cap foundation
The sleeve of side, and piling is tilted successively to projected depth, it is in the trend of outside side diffusion to make the lower end of piling bar, plays support effect
Fruit.
Existing offshore wind turbine high-rise pile cap is reinforced concrete structure, and the steel reinforcement cage of cushion cap part generally requires scene
Binding, workload is larger, and cushion cap concreting carries out usually in steel jacket box, therefore, has operation procedure complexity, duration
Longer, the higher defect of cost.In addition, the high-rise pile cap of reinforced concrete structure since own wt is heavier, is relatively suitable for water
Deep shallower waters.As marine wind electric field gradually develops toward deep water and high-power blower unit direction, weather window of constructing
Phase is shorter, and the high-rise pile cap of reinforced concrete structure duty cycle can be longer, and cushion cap weight can be heavier, this gives existing offshore steel
The application of reinforced concrete high-rise pile cap structure brings challenge.
Invention content
In order to solve the shortcoming present in above-mentioned technology, the present invention provides a kind of offshore steel structure high-rise pile cap wind
Machine basis and its construction method.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of offshore wind turbine High-Rise Pile Cap Foundation,
Using Prefabricated steel construction, it includes central tube, pile pile, sleeve and bearing sheet；Central tube is located at entire high-rise pile cap blower foundation
Middle position；Central tube is cylindrical shape；Flange is provided at the top of central tube；Central tube is connected by flange with offshore wind turbine
It connects；The side surface of central tube is vertically connected with cushion cap riser；Cushion cap riser is right-angled trapezium；It hangs down the top of cushion cap riser
It is direct-connected to be connected to circular cushion cap top plate；The inner ring of cushion cap top plate is disposed around the side of central tube；Central tube and cushion cap riser
Lower section is connected with cushion cap bottom plate jointly；The bevel edge of cushion cap riser is connected with sleeve；Pile pile is fixed in sleeve；Pile pile is tubulose
Piling bar；The top of pile pile and sleeve are internally provided with shear key；Sleeve is connected as one with pile pile.
Further, the right-angle side of cushion cap riser is by being welded on central tube；Cushion cap riser is symmetrically equidistant to be welded on
On the surface of central tube.
Further, it is provided with lightening hole on cushion cap riser；Lightening hole is the hole of quadrangle or circle.
Further, the inner ring of cushion cap top plate is welded on the side of central tube 1；Cushion cap top plate 3 is welded on cushion cap riser 4
Top.
Further, cushion cap bottom plate is welded on central tube and cushion cap riser.
Further, sleeve weld is on cushion cap riser, cushion cap top plate and cushion cap bottom plate.
Further, pile pile is welded together with sleeve by the connecting plate at top.
Further, it is become one structure by cement injection mortar between sleeve and pile pile.
Further, present disclosure further includes the construction method of above-mentioned offshore steel structure high-rise pile cap blower foundation,
Specific construction step is：
One, by stake pile sinking in place to mud face projected depth below；
Two, the offshore steel structure high-rise pile cap blower foundation is put down from top to bottom, so that central tube is passed through stake in place, and solid
It is scheduled on stake epimere in place；
Three, each pile pile is each passed through each sleeve, driven piles to projected depth by root；
Four, stake in place is extracted；
Five, leveling is carried out to the offshore steel structure high-rise pile cap blower foundation, welds top connecting plate, be in the milk, completed
Installation.
Further, the offshore steel structure high-rise pile cap blower foundation is arranged more than water surface splash zone.
The present invention proposes a kind of novel offshore wind turbine High-Rise Pile Cap Foundation and its construction method, is held with armored concrete
Platform is compared, which uses prefabrication steel construction, passes through reasonable setting structure form so that fan loads rationally effectively pass
It is handed to pile foundation, realizes the positioning accuracy for improving pile pile, offshore construction device resource is saved, shortens construction period, reduces cushion cap
Weight and operating cost, while operation on the sea safety is improved, breach the weather window phase of High-Rise Pile Cap Foundation form
Limitation.
Description of the drawings
Fig. 1 is the side sectional view of the present invention.
Fig. 2 is the section plan of the present invention.
Fig. 3 is the schematic diagram one of the construction method of the present invention.
Fig. 4 is the schematic diagram two of the construction method of the present invention.
In figure：1, central tube；2, flange；3, cushion cap top plate；4, cushion cap riser；5, lightening hole；6, cushion cap bottom plate；7, it manages
Stake；8, sleeve；9, connecting plate；10, stake in place；11, mud face；12, steel cushion cap.
Specific implementation mode
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Offshore wind turbine High-Rise Pile Cap Foundation shown in Fig. 1-2, it uses Prefabricated steel construction, including central tube 1, pile pile 7, set
Cylinder 8 and bearing sheet；Compared with reinforced concrete pile cap, the structure offshore construction is simple and practicable, and pile pile positioning accuracy is high, operation week
Phase is short, and weight is low, economic and reliable.
Central tube 1 is located at the middle position of entire high-rise pile cap blower foundation；Central tube 1 is cylindrical shape；The top of central tube 1
Portion is provided with flange 2；Flange 2 with blower fan tower barrel connecting.
The side of central tube 1 is vertically connected with cushion cap riser 4；Cushion cap riser 4 is right-angled trapezium；Cushion cap riser 4
Right-angle side be welded on the side of central tube 1；Cushion cap riser 4 is symmetrically equidistant to be welded on the surface of central tube 1；Cushion cap is vertical
4 upper vertical of plate is connected with circular cushion cap top plate 3；The inner ring of cushion cap top plate 3 is disposed around the side of central tube 1；Cushion cap top
The inner ring of plate 3 is welded on the side of central tube 1；Cushion cap top plate 3 is welded on the top of cushion cap riser 4；3 central tube 1 of cushion cap top plate
It is connected with cushion cap bottom plate 6 jointly with the lower section of cushion cap riser 4.
It is provided with lightening hole on cushion cap riser；Lightening hole is the hole of quadrangle or circle；To mitigate weight and facilitate weldering
Connect construction.
The bevel edge of cushion cap riser 4 is connected with sleeve 8；Sleeve 8 is welded on cushion cap riser 4, cushion cap top plate 3 and cushion cap bottom plate 6
On.
Pile pile 7 is fixed in sleeve 8；Pile pile 7 is the piling bar of tubulose；Pile pile 7 is welded with sleeve 8 by the connecting plate 9 at top
It is connected together.The positioning and required precision of each pile pile 7 are realized by the sleeve 8 of steel.
The top of pile pile 7 and sleeve 8 are internally provided with shear key；Pass through cement injection mortar between sleeve 8 and pile pile 7
It becomes one structure.
In the present embodiment, fan loads reach central tube 1 by flange 2, then by cushion cap riser 4, cushion cap top plate 3,
Cushion cap bottom plate 6 reaches sleeve 8, and pile pile 7 is passed to finally by connecting plate 9, shear key and cement mortar.Total force flow passes
It passs simple clear.The cushion cap foundation of steel is completed in factory process in advance, after being transported to operation marine site, carries out construction operation.
As shown in Figure 3, Figure 4, the construction operation the specific steps are：
One, after positioning cushion cap, by 10 pile sinking of stake in place to 11 or less certain projected depth of mud face；
Two, decentralization steel cushion cap 12, makes cushion cap central tube 1 be fixed in stake 10 in place across stake 10 in place, and is arranged in water
It is more than face splash zone；
Three, sleeve 8 that each pile pile 7 is sequentially passed through to 12 outside of steel cushion cap, drives piles by root to projected depth；
Four, stake 10 in place is extracted using pile extractor, is reused；
Five, leveling is carried out to steel cushion cap 12, welds top connecting plate, installation is completed in grouting.
Pile pile 7 squeezes into seabed by each sleeve 8, realizes that pile pile 7 is accurately positioned, ensures required precision.After the completion of piling,
Sea only needs top connecting plate welding 9 and grouting operation, construction is simple, activity duration short.
Offshore steel structure high-rise pile cap can be prefabricated in the factory in the present invention, and own wt is light, and workmanship is easy
It is guaranteed, is quickly and expediently installed.Compared to traditional reinforced concrete pile cap, need not use steel jacket box, reinforcing bar binding and
Mass concrete stirring pours operation, and operation ship equipment is simple, the offshore construction period can be made to reduce 60% or more, cushion cap weight
Amount mitigates 80% or more, can greatly save offshore construction duration and operating cost.
The above embodiment is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made within the scope of technical scheme of the present invention, also belong to this hair
Bright protection domain.
Claims (10)
1. a kind of offshore wind turbine High-Rise Pile Cap Foundation, it is characterised in that：The offshore wind turbine High-Rise Pile Cap Foundation uses pre-manufactured steel
Structure, it includes central tube (1), pile pile (7), sleeve (8) and bearing sheet；The central tube (1) is located at entire high-rise pile cap wind
The middle position on machine basis；The central tube (1) is cylindrical shape；It is provided with flange (2) at the top of the central tube (1)；It is described
Central tube (1) is connected by flange (2) with wind turbine；It is vertical that the side surface of the central tube (1) is vertically connected with cushion cap
Plate (4)；The cushion cap riser (4) is right-angled trapezium；The upper vertical of the cushion cap riser (4) is connected with circular cushion cap top
Plate (3)；The inner ring of the cushion cap top plate (3) is disposed around the side of central tube (1)；The central tube (1) and cushion cap riser (4)
Lower section is connected with cushion cap bottom plate (6) jointly；The bevel edge of the cushion cap riser (4) is connected with sleeve (8)；It is solid in the sleeve (8)
Surely there is pile pile (7)；The pile pile (7) is the piling bar of tubulose；Being internally provided with for the top of the pile pile (7) and sleeve (8) is anti-
Cut key；The sleeve (8) is connected as one with pile pile (7).
2. offshore wind turbine High-Rise Pile Cap Foundation according to claim 1, it is characterised in that：The cushion cap riser (4) it is straight
The arm of angle is welded on central tube (1)；The cushion cap riser (4) is symmetrically equidistant to be welded on the surface of central tube (1).
3. offshore wind turbine High-Rise Pile Cap Foundation according to claim 2, it is characterised in that：It is set on the cushion cap riser (4)
It is equipped with lightening hole (5)；The lightening hole (5) is the hole of quadrangle or circle.
4. offshore wind turbine High-Rise Pile Cap Foundation according to claim 3, it is characterised in that：The cushion cap top plate (3) it is interior
Lap welding is connected on the side of central tube (1)；The cushion cap top plate (3) is welded on the top of cushion cap riser (4).
5. offshore wind turbine High-Rise Pile Cap Foundation according to claim 4, it is characterised in that：Cushion cap bottom plate (6) welding
On central tube (1) and cushion cap riser (4).
6. offshore wind turbine High-Rise Pile Cap Foundation according to claim 5, it is characterised in that：The sleeve (8), which is welded on, holds
On platform riser (4), cushion cap top plate (3) and cushion cap bottom plate (6).
7. offshore wind turbine High-Rise Pile Cap Foundation according to claim 1 or 6, it is characterised in that：The pile pile (7) and sleeve
(8) welded together by the connecting plate at top (9).
8. offshore wind turbine High-Rise Pile Cap Foundation according to claim 7, it is characterised in that：The sleeve (8) and pile pile (7)
Between become one structure by cement injection mortar.
9. a kind of construction method of offshore steel structure high-rise pile cap blower foundation as claimed in claim 5, it is characterised in that：Institute
The Specific construction step for stating method is：
One, by stake in place (10) pile sinking to mud face projected depth below；
Two, the offshore steel structure high-rise pile cap blower foundation is put down from top to bottom, and central tube (1) is made to pass through stake in place (10),
And it is fixed on stake in place (10) epimere；
Three, each pile pile (7) is each passed through each sleeve (8), driven piles to projected depth by root；
Four, stake in place (10) are extracted；
Five, leveling is carried out to the offshore steel structure high-rise pile cap blower foundation, welds top connecting plate, installation is completed in grouting.
10. the construction method of offshore steel structure high-rise pile cap blower foundation according to claim 9, it is characterised in that：Institute
Offshore steel structure high-rise pile cap blower foundation is stated to be arranged more than water surface splash zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477860.2A CN108425377A (en) | 2018-05-18 | 2018-05-18 | A kind of offshore steel structure high-rise pile cap blower foundation and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477860.2A CN108425377A (en) | 2018-05-18 | 2018-05-18 | A kind of offshore steel structure high-rise pile cap blower foundation and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108425377A true CN108425377A (en) | 2018-08-21 |
Family
ID=63163565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810477860.2A Pending CN108425377A (en) | 2018-05-18 | 2018-05-18 | A kind of offshore steel structure high-rise pile cap blower foundation and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108425377A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593298A (en) * | 2019-09-30 | 2019-12-20 | 天津大学 | Composite foundation for improving bearing performance of cylindrical foundation by using auxiliary piles and construction method thereof |
| CN110644471A (en) * | 2019-10-18 | 2020-01-03 | 中国铁路设计集团有限公司 | Staple bolt formula precast tubular pile and connection structure of prefabricated cushion cap |
| CN113622453A (en) * | 2021-08-19 | 2021-11-09 | 福建省宏闽电力工程监理有限公司 | Offshore wind power bearing platform foundation construction method |
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| CN201538971U (en) * | 2009-10-23 | 2010-08-04 | 中国水电顾问集团华东勘测设计研究院 | Basic structure of high-rise pile cap type offshore wind driven generator |
| CN102296624A (en) * | 2011-05-19 | 2011-12-28 | 中国水电顾问集团华东勘测设计研究院 | Lattice pile type foundation structure of offshore wind driven generator |
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| CN105201010A (en) * | 2015-09-30 | 2015-12-30 | 浙江大学 | Assembled inclined-pile foundation for offshore wind turbine |
| CN106013212A (en) * | 2016-07-25 | 2016-10-12 | 福建永福电力设计股份有限公司 | Offshore wind turbine tower foundation structure and installation method |
| CN107090844A (en) * | 2017-05-19 | 2017-08-25 | 中交第三航务工程局有限公司 | Offshore wind farm grouped piles cap composite foundation and construction method |
| CN208441126U (en) * | 2018-05-18 | 2019-01-29 | 龙源（北京）风电工程设计咨询有限公司 | A kind of offshore steel structure high-rise pile cap blower foundation |
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2018
- 2018-05-18 CN CN201810477860.2A patent/CN108425377A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201538971U (en) * | 2009-10-23 | 2010-08-04 | 中国水电顾问集团华东勘测设计研究院 | Basic structure of high-rise pile cap type offshore wind driven generator |
| CN102296624A (en) * | 2011-05-19 | 2011-12-28 | 中国水电顾问集团华东勘测设计研究院 | Lattice pile type foundation structure of offshore wind driven generator |
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| CN208441126U (en) * | 2018-05-18 | 2019-01-29 | 龙源（北京）风电工程设计咨询有限公司 | A kind of offshore steel structure high-rise pile cap blower foundation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593298A (en) * | 2019-09-30 | 2019-12-20 | 天津大学 | Composite foundation for improving bearing performance of cylindrical foundation by using auxiliary piles and construction method thereof |
| CN110644471A (en) * | 2019-10-18 | 2020-01-03 | 中国铁路设计集团有限公司 | Staple bolt formula precast tubular pile and connection structure of prefabricated cushion cap |
| CN110644471B (en) * | 2019-10-18 | 2024-04-05 | 中国铁路设计集团有限公司 | Connection structure of staple bolt formula precast tubular pile and prefabricated cushion cap |
| CN113622453A (en) * | 2021-08-19 | 2021-11-09 | 福建省宏闽电力工程监理有限公司 | Offshore wind power bearing platform foundation construction method |
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Application publication date: 20180821 |