CN105201010B - Offshore wind turbine assembled taper pile basis - Google Patents
Offshore wind turbine assembled taper pile basis Download PDFInfo
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- CN105201010B CN105201010B CN201510641831.1A CN201510641831A CN105201010B CN 105201010 B CN105201010 B CN 105201010B CN 201510641831 A CN201510641831 A CN 201510641831A CN 105201010 B CN105201010 B CN 105201010B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 84
- 239000010959 steel Substances 0.000 claims abstract description 84
- 238000010276 construction Methods 0.000 claims abstract description 69
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 238000003466 welding Methods 0.000 claims abstract description 8
- 230000008859 change Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000006872 improvement Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The invention discloses a kind of offshore wind turbine assembled taper pile basis.Including blower fan tower barrel, steel pile foundation and the conversion steel construction being connected between steel pile foundation and blower fan tower barrel, steel pile foundation is tilted to blower fan tower barrel and installed, and blower fan tower barrel, steel pile foundation are connected by ring flange with conversion steel construction respectively；Conversion steel construction is the fork-shaped structure for including multiple welding branches around central tube and central tube, and each branch bottom is coaxially connected by ring flange and steel pile foundation top, and central tube top is coaxially connected by ring flange and blower fan tower barrel bottom.Bearing capacity of the present invention is strong, reliability is high, fatigue performance is good, without Site Welding and grouting, and the requirement to engineering equipment and construction technology is relatively low.
Description
Technical field
The present invention relates to a kind of pile foundation structure, a kind of more particularly to offshore wind turbine assembled taper pile basis is applicable
In the larger blower fan of installed capacity and the deeper marine site of the depth of water.
Background technology
Wind energy be quickly grow at present, one of the regenerative resource that industrial prospect is best.Because marine wind speed is big, wind-force is held
Stable and wind energy yield is high long, and less wind turbulent flow is small to Wind turbines life consumption, and wind-driven generator is built and using by soil
Ground, ambient noise restriction are weaker, and Wind turbines move towards trend of the marine and maximization as international Wind Power Development from land.
Current offshore wind turbine typically using large diameter single pile foundation, tripod basis and four foot stools basis, jacket basis,
The base forms such as High-Rise Pile Cap Foundation.But in actual application, because what each of which structure existed in itself various asks
Topic, all more or less constrains their popularization and application.
Large diameter single pile foundation：Although its foundation structure stress is simple, convenient processing and manufacture, its stake footpath is big,
High (need to introduce large hydraulic pile hammer) is required to construction equipment, special geology pile sinking difficulty is big；By seabottom geology condition and water
Deep binding is larger, and water is too deep large curved deformation easily occurs；It is very sensitive to washing away, need well-designed protection against erosion measure；For a long time
Stake horizontal distortion calculates theoretical imperfection under cyclic load.
Tripod basis and four foot stools basis：They have structure integral rigidity big, are applicable the wide advantage of depth of water scope.But
It is that during practice of construction, the grouting connection construction difficulty between stake and tripod or four foot stools is very big, seriously hinders
Their popularization and application；Their key dimension is big, it is necessary to which preprocessing place is larger；Rod member is more, it is necessary to lift welding；Structure
Node is more, and commissure reason workload is big；Substantially, there is node fatigue rupture risk in welding node stress concentration；Basic leveling
It is difficult, it is both needed to levelling device and pile clamping device under apolegamy dedicated water on general every pile.
Jacket basis：Due to big, small, larger suitable for the depth of water by environmental loads such as wave currents with structure integral rigidity
The advantages of marine site, increasingly it is taken seriously in recent years.But it is the same with tripod basis or four foot stools basis, stake and jacket it
Between grouting connection equally annoying design and construction personnel；Its key dimension is big, it is necessary to which preprocessing place is larger simultaneously；Bar
Part is more, it is necessary to lift welding；Need to set more complicated transition connecting structure；Power transmission is complex；Node fatigue problem is dashed forward
Go out；Basic leveling is difficult.
High-Rise Pile Cap Foundation：Comparatively the construction equipment of this kind of base form and experience be ripe, basis and blower fan tower barrel
Connection is similar with land blower fan.But its bearing platform construction needs steel jacket box, reinforcing bar cage hoisting and concrete stirring etc. are a variety of to arrange
Apply, curing time is long；During casting of concrete in mass, large area thermal cracking and contraction fissure easily are produced on cushion cap surface,
Influence suspended deck structure durability；Large volume concrete structural high cantilever, antidetonation is unfavorable；Cost is big, long construction period.
Analyzed based on more than, nowadays lack the new pile foundation form of a kind of safe and reliable, easy construction, economical rationality,
To promote offshore wind farm to advance more quickly.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of offshore wind turbine assembled taper pile basis, it is by blower fan tower
The new steel structure basis suitable for offshore wind turbine foundation of cylinder, steel pile foundation and conversion steel construction composition.
The present invention solves above-mentioned existing gravity type foundation, single-pile foundation, tripod basis or four foot stools basis, conduit
The problems of base form such as frame basis and High-Rise Pile Cap Foundation.
The technical solution of the present invention is as follows:
The present invention includes blower fan tower barrel, steel pile foundation and the conversion steel knot being connected between steel pile foundation and blower fan tower barrel
Structure, steel pile foundation is tilted to blower fan tower barrel and installed, and blower fan tower barrel, steel pile foundation are connected by ring flange with conversion steel construction respectively
Connect.
The conversion steel construction is the fork-shaped structure for including multiple welding branches around central tube and central tube, each
Branch bottom is coaxially connected by ring flange and steel pile foundation top, and central tube top passes through ring flange and blower fan tower barrel bottom
It is coaxially connected.
Branch's oblique weld of described conversion steel construction is to central tube side wall.
Described conversion steel construction has three branches, and three branches are mutually 120 degree.
Described conversion steel construction has four branches, and four branches are mutually 90 degree.
Described steel pile foundation is taper pile, and the scope of its gradient is 1/5~1/7.
Described steel construction of changing changes steel construction into lattice, is arranged on more than splash zone.
Described steel pile foundation is round steel pile tube.
The present invention has the following advantages compared with prior art：
1) compared with existing gravity type foundation and single-pile foundation, it is more suitable for, and the wind-powered electricity generation site depth of water is deeper, installs and holds
The bigger Wind turbines of amount, with more preferable Stability and dependability；
2) compared with existing tripod basis, High-Rise Pile Cap Foundation and jacket basis, basic shape proposed by the present invention
Formula is more concise, all has obvious advantage in terms of stability and fatigue resistance, and due to the big portion of its component
Divide and use factory-made component, it is not necessary to scene grouting, reduce site operation risk and difficulty, shorten the construction period.
Conversion steel construction and taper pile basis designed by the present invention, can be dexterously by the horizontal loading suffered by superstructure
The moment of flexure of caused basic top surface is converted into the axle power of taper pile to greatest extent, makes the overall stress more science of blower fan.
Brief description of the drawings
Fig. 1 is the front view of present invention when using three pile foundations.
Fig. 2 is the top view of present invention when using three pile foundations.
Fig. 3 is the top view of present invention when using four pile foundations.
In figure：1st, blower fan tower barrel, 2, steel pile foundation, 3, conversion steel construction, 4, ring flange, 5, splash zone absolute altitude.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples：
As shown in Figure 1, Figure 2 and Figure 3, the present invention includes blower fan tower barrel 1, steel pile foundation 2 and is connected to the and of steel pile foundation 2
Conversion steel construction 3 between blower fan tower barrel 1, steel pile foundation 2 is tilted to blower fan tower barrel 1 and installed, 2 points of blower fan tower barrel 1, steel pile foundation
It is not connected by ring flange 4 with conversion steel construction 3.
As shown in Figure 1, Figure 2 and Figure 3, conversion steel construction 3 is to include multiple branches around central tube and central tube
Fork-shaped structure, each branch bottom is coaxially connected by ring flange 4 and the top of steel pile foundation 2, and central tube top passes through method
Blue disk 4 and the bottom of blower fan tower barrel 1 are coaxially connected.
Wanted in the future and bottom steel as shown in figure 1, changing steel construction central tube side wall when stake number is three or four and accordingly welding
The connected leg post of stake.This kind of structure can effectively improve the anti-fatigue ability of conversion steel construction, make structure stress mode more section
Learn.
Branch's top oblique weld of steel construction 3 is changed to central tube side wall, so that bottom taper pile can be with gradient 1/6
~1/7 buries.
Three branches or four branches can be had by changing steel construction 3, when the base form using three piles, such as be schemed
Shown in 2, three branches that the central tube and steel pile foundation 2 for changing steel construction 3 are connected are at an angle to each other into 120 degree；When using four
The base form of stake, as shown in figure 3, four branches being connected with steel pile foundation 2 of central tube of conversion steel construction 3 are at an angle to each other is
90 degree.
Steel pile foundation 2 is taper pile, and the scope of its gradient is 1/5~1/7.It is preferred that steel pile foundation 2 can be round steel pile tube.
Change steel construction 3 and change steel construction into lattice, be arranged on more than splash zone, as shown in figure 1, conversion steel construction 3
Bottom be higher than splash zone absolute altitude 5.
The Specific construction process of the present invention is as follows：
1) steel pile foundation 2 is squeezed into specified location by designated depth using pile driving equipment, and ensures that construction finishes rear piling bar
The gradient on basis 2 is between 1/5~1/7；
2) steel construction 3 is changed according to the real standard position of live each stake stake top ring flange 4 and elevation design, it is ensured that conversion
Can good connection between steel construction 3 and each steel pile foundation 2 and blower fan tower barrel 1.The improvement that is prefabricated in the factory is changed after steel construction and is transported to
Scene；
3) conversion steel construction 3 is installed, steel construction 3 and blower fan tower barrel 1 will be changed by ring flange 4 and steel pile foundation 2 is consolidated
It is fixed.This connected mode is purely mechanic connection, eliminates the cumbersome working procedure of scene grouting, greatlys save construction cost,
Shorten the construction period；
4) lifting fan tower 4, installs affiliated facility such as berthing member and cable tube etc. on conversion steel construction and stake.
Compared with existing pile foundation, the present invention is dexterously maximum by moment of flexure caused by the horizontal loading suffered by superstructure
The axle power of taper pile is converted into limit, is more suitable for that the wind-powered electricity generation site depth of water is deeper, the Wind turbines that installed capacity is bigger, with more
Good Stability and dependability, and live need not be in the milk, site operation risk and difficulty are reduced, construction work is shortened
Phase, obvious technical effects.
Claims (6)
1. a kind of construction method on offshore wind turbine assembled taper pile basis, it is characterized in that：
Using offshore wind turbine assembled taper pile basis, the offshore wind turbine assembled taper pile basis includes blower fan tower barrel (1), piling bar
Basic (2) and the conversion steel construction (3) being connected between steel pile foundation (2) and blower fan tower barrel (1), steel pile foundation (2) is aweather
Machine tower (1), which is tilted, to be installed, and blower fan tower barrel (1), steel pile foundation (2) are connected by ring flange (4) with conversion steel construction (3) respectively
Connect；
1) steel pile foundation (2) is squeezed into specified location by designated depth using pile driving equipment, and ensures that construction finishes rear piling bar base
The gradient of plinth (2) is between 1/5~1/7；
2) steel construction (3) is changed according to the real standard position of live each stake stake top ring flange (4) and elevation design, it is ensured that conversion
Steel construction (3) is changed in energy good connection between steel construction (3) and each steel pile foundation (2) and blower fan tower barrel (1), the improvement that is prefabricated in the factory
After be transported to scene；
3) conversion steel construction (3) is installed, steel construction (3) and blower fan tower barrel (1) and steel pile foundation will be changed by ring flange (4)
(2) fixed, this connected mode is purely mechanic connection, eliminates the cumbersome working procedure of scene grouting, greatlys save construction
Cost, shortens the construction period；
4) lifting fan tower (1), installs the affiliated facility such as berthing member and cable tube on conversion steel construction and stake.
2. a kind of construction method on offshore wind turbine assembled taper pile basis according to claim 1, it is characterised in that：It is described
Conversion steel construction (3) is the fork-shaped structure for including multiple welding branches around central tube and central tube, each branch
Bottom is coaxially connected by ring flange (4) and steel pile foundation (2) top, and central tube top passes through ring flange (4) and blower fan tower
Cylinder (1) bottom is coaxially connected.
3. a kind of construction method on offshore wind turbine assembled taper pile basis according to claim 2, it is characterised in that：It is described
Conversion steel construction (3) branch's oblique weld to central tube side wall.
4. a kind of construction method on offshore wind turbine assembled taper pile basis according to claim 2, it is characterised in that：It is described
Conversion steel construction (3) there are three branches, three branches are mutually 120 degree.
5. a kind of construction method on offshore wind turbine assembled taper pile basis according to claim 2, it is characterised in that：It is described
Conversion steel construction (3) there are four branches, four branches are mutually 90 degree.
6. a kind of construction method on offshore wind turbine assembled taper pile basis according to claim 1, it is characterised in that：It is described
Change steel construction (3) into lattice change steel construction, be arranged on more than splash zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510641831.1A CN105201010B (en) | 2015-09-30 | 2015-09-30 | Offshore wind turbine assembled taper pile basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510641831.1A CN105201010B (en) | 2015-09-30 | 2015-09-30 | Offshore wind turbine assembled taper pile basis |
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| Publication Number | Publication Date |
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| CN105201010A CN105201010A (en) | 2015-12-30 |
| CN105201010B true CN105201010B (en) | 2017-08-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023001879A1 (en) * | 2021-07-23 | 2023-01-26 | Vallourec Deutschland Gmbh | Assembly for installing an above-surface structure in water-covered ground, in particular for the monopile-installation of an offshore wind turbine, and method for mounting same |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545472A (en) * | 2016-11-11 | 2017-03-29 | 青岛中天斯壮科技有限公司 | The antifatigue combination steel construction wind tower of omnidirectional's prestressing force and its installation method |
| CN109868847B (en) * | 2017-12-01 | 2024-01-19 | 大唐国信滨海海上风力发电有限公司 | Corrosion on-line detection equipment for tidal range area of offshore wind power single pile foundation |
| CN109868848B (en) * | 2017-12-01 | 2024-01-19 | 大唐国信滨海海上风力发电有限公司 | Online corrosion detection equipment for splash zone of offshore wind power single pile foundation |
| CN108425377A (en) * | 2018-05-18 | 2018-08-21 | 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 and its construction method |
| DE102019218687A1 (en) * | 2019-12-02 | 2021-06-02 | Thyssenkrupp Steel Europe Ag | Transition piece for a tower of a wind turbine and tower of a wind turbine |
| CN112376603A (en) * | 2020-11-05 | 2021-02-19 | 上海电气风电集团股份有限公司 | Assembly type fan foundation and assembly method thereof |
| CN113373967A (en) * | 2021-06-10 | 2021-09-10 | 天津港航工程有限公司 | Fan installation construction method based on portal frame type multi-pile fan foundation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2333163A1 (en) * | 2009-12-11 | 2011-06-15 | WeserWind GmbH | Offshore structure |
| EP2647764A1 (en) * | 2012-04-04 | 2013-10-09 | STRABAG Offshore Wind GmbH | Transition piece for connecting a tower or mast foot with the upper end of a grid-like foundation structure in the offshore area |
| DE102013110495A1 (en) * | 2013-09-23 | 2015-03-26 | Thyssenkrupp Steel Europe Ag | Transition body between tower sections of a wind turbine and tower of a wind turbine comprising a transition body |
| CN104641059A (en) * | 2012-07-25 | 2015-05-20 | 蒂森克虏伯钢铁欧洲股份公司 | Modular tower for a wind power plant |
| CN205077507U (en) * | 2015-09-30 | 2016-03-09 | 浙江大学 | Marine fan assembled batter pile basis |
-
2015
- 2015-09-30 CN CN201510641831.1A patent/CN105201010B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2333163A1 (en) * | 2009-12-11 | 2011-06-15 | WeserWind GmbH | Offshore structure |
| EP2647764A1 (en) * | 2012-04-04 | 2013-10-09 | STRABAG Offshore Wind GmbH | Transition piece for connecting a tower or mast foot with the upper end of a grid-like foundation structure in the offshore area |
| CN104641059A (en) * | 2012-07-25 | 2015-05-20 | 蒂森克虏伯钢铁欧洲股份公司 | Modular tower for a wind power plant |
| DE102013110495A1 (en) * | 2013-09-23 | 2015-03-26 | Thyssenkrupp Steel Europe Ag | Transition body between tower sections of a wind turbine and tower of a wind turbine comprising a transition body |
| CN205077507U (en) * | 2015-09-30 | 2016-03-09 | 浙江大学 | Marine fan assembled batter pile basis |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023001879A1 (en) * | 2021-07-23 | 2023-01-26 | Vallourec Deutschland Gmbh | Assembly for installing an above-surface structure in water-covered ground, in particular for the monopile-installation of an offshore wind turbine, and method for mounting same |
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| CN105201010A (en) | 2015-12-30 |
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