CN203613551U - Precast concrete jacket type offshore wind turbine foundation - Google Patents
Precast concrete jacket type offshore wind turbine foundation Download PDFInfo
- Publication number
- CN203613551U CN203613551U CN201320738790.4U CN201320738790U CN203613551U CN 203613551 U CN203613551 U CN 203613551U CN 201320738790 U CN201320738790 U CN 201320738790U CN 203613551 U CN203613551 U CN 203613551U
- Authority
- CN
- China
- Prior art keywords
- foundation
- wind turbine
- offshore wind
- nose girder
- pile
- 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.)
- Expired - Lifetime
Links
- 239000011178 precast concrete Substances 0.000 title claims abstract description 22
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 26
- 239000004567 concrete Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 239000011513 prestressed concrete Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 238000009411 base construction Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Images
Landscapes
- Foundations (AREA)
Abstract
The utility model relates to a precast concrete jacket type offshore wind turbine foundation. The offshore wind turbine foundation is characterized by comprising a reinforced concrete frame precast ashore, foundation piles and a cap beam, wherein the reinforced concrete frame precast ashore comprises upper and lower guide beams, connecting beams, stand columns and a core tube; reserved pile holes are evenly distributed in the upper and lower guide beams; the foundation piles penetrate through the reserved pile holes; a plurality of stand columns are evenly distributed between the upper and lower guide beams; the cylindrical core tube is arranged in the central portion of the upper and lower guide beams; the core tube is connected with the upper and lower guide beams through the radial connecting beams to form an integral structure; the cap beam is arranged on the surface of the upper guide beam; and the cap beam, the reinforced concrete frame and the foundation piles form an integral precast concrete foundation structure. The precast concrete jacket type offshore wind turbine foundation has the benefits that the conventional method of adopting a cast-in-place concrete foundation is changed, the lighter reinforced concrete structure frame is precast ashore firstly and then placed at the seabed of a coastline, and then the precast foundation piles are inserted into and fixedly connected with the frame to form the integral foundation, and the integral wind turbine foundation which is firm and resistant to wind waves can be built.
Description
Technical field
The utility model belongs to precast concrete foundation, relates in particular to a kind of precast concrete jacket-type offshore wind turbine foundation.
Background technology
Marine wind electric field fan basis is that blower foundation is in marine environment by firm blower fan afloat important building, not only will bear dead load, wind load, also will bear wave, drag force etc.; Meanwhile, blower fan itself all has very strict requirement to soil rigidity, basic inclination angle and vibration frequency etc.At present, a lot of countries are in the offshore wind power foundation form of exploring economic security, and this development of offshore wind farm for China has reference very much.
Due to the acting in conjunction of the factors such as high wind load, wave impact load, stream load, seawater corrosion, it is large more than the technical difficulty of land that offshore wind turbine foundation is built, complex structure, and cost is high.Offshore wind turbine foundation type mainly contains at present: single pile type foundation, tripod type basis, jacket-type basis, the desk-top basis of many piles.
Single pile type foundation: the type basis is made up of the large diameter steel pipe pile of a diameter 3～5m, after heavy good stake, stake top fixes changeover portion, and pylon is installed on it.Advantage is that working procedure is simple, without arranging sea bed.Shortcoming is to need to consider basic scour protection, in addition because single pile weight is large, needs ultra-large type sinking apparatus to construct, and is generally applicable to be less than the middle shallow water territory of 25m;
Tripod type basis: the type basis adopts the steel pipe pile of three intermediate diameters to be positioned seabed, and three piles become equilateral triangle evenly to lay, top tripod trussed construction is supported by steel sleeve in stake top, forms combined type basis.This basis adopts steel work, and intensity is high, is applicable to large fan.But this complex structure, involves great expense; Be subject to wave effect, easily fatigue failure; The marine installation of large foundation is subject to weather effect larger.Be applicable to be greater than the waters of 25m;
Jacket-type basis: this structure comprises jacket and stake, and Zhuan Zhi becomes whole load fixed structure.Stake number, length and stake footpath are determined by seabottom geology condition and load.The type basis is steel work, and feature is similar to tripod type basis, and intensity is high, is applicable to large fan, but involves great expense, and needs great deal of steel, and construction is subject to weather effect larger.
The desk-top basis of many piles: this structure is the common structure of seashore harbour and pier footing, is made up of foundation pile and top cushion cap.When construction, first apply cofferdam, after discharge seawater, carry out foundation pile and top bearing platform construction.Because need carry out cofferdam construction, and top cushion cap is cast-in-place concrete structure, so the type foundation construction operation is many, long in time limit, needs multiple ship machine equipment, and cost is higher.
To sum up, it is larger that offshore wind turbine foundation construction is affected by the factor such as weather, wave, can the engineering time shorter, difficulty of construction is large, should be according to China coastal seas condition, construction ability, construction level, determine the offshore wind turbine foundation pattern that economically feasible tallies with the national condition, for the sustainable development of China's offshore wind farm industry provides support.
Utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, a kind of precast concrete jacket-type offshore wind turbine foundation is provided, adopt land prefabricated compared with lightweight section tendon concrete structure offshore wind turbine foundation, go for various geological conditionss, the depth of water, build and easy construction, prepare without doing any sea bed, be especially suitable as large fan basis, marine intertidal zone.
The utility model for achieving the above object, by the following technical solutions: a kind of precast concrete jacket-type offshore wind turbine foundation, it is characterized in that: comprise the reinforced concrete frame that land is prefabricated, foundation pile and cap, the prefabricated reinforced concrete frame in described land comprises upper and lower nose girder, linking beam, column, Core Walls Structure, uniform reserved stake hole on described upper and lower nose girder, described reserved stake runs through foundation pile in hole, uniform some root posts between described upper and lower nose girder, described upper and lower nose girder central part is provided with columniform Core Walls Structure, described Core Walls Structure connects into overall structure by radial linking beam and upper and lower nose girder, described upper nose girder surface is provided with cap, the reinforced concrete frame that described cap and land are prefabricated and foundation pile form integral prefabricated concrete foundation structure.
Described column is the hollow conduit post that is placed in corresponding reserved stake hole site between upper and lower nose girder, and described foundation pile runs through in reserved stake hole and conductor string.
Described upper and lower nose girder outer periphery surface is provided with sidewall.
Between the linking beam of described upper nose girder, connect into entirety by top board.
The prefabricated reinforced concrete frame shape of cross section in described land is rounded, square, triangle, pentagon or hexagon.
Described foundation pile adopts concrete pile, prestressed concrete pile or steel pipe pile, and its shape of cross section is circular, square or oval; The shape in described reserved stake hole is mated with foundation pile shape of cross section.
Described linking beam adopts plain bars or presstressed reinforcing steel, and the junction of described linking beam and Core Walls Structure is provided with triangle reinforcing rib.
Beneficial effect: compared with prior art, change the traditional method that sea gravity type basis all adopts conventional land concrete foundation, the utility model adopts the first prefabricated light-dutyer reinforced concrete structure framework on land, put it into behind the seabed in coastline, insert again prefabricated foundation pile, prepare without doing any sea bed, can build up overall blower foundation firm, wind and wave resistance.Not only can be suitable for the construction of various geology and depth condition, and construction cost can reduce greatly, construct convenient.Overcome steel structure base construction cost high simultaneously, installed and need special equipment, the shortcoming that construction and installation expense is higher.It has ground strong adaptability, can bear larger horizontal loading and vertical load, and member is prefabricated reinforced concrete structure, quick construction, the advantage such as engineering cost is low.Especially be applicable to the blower foundation as region, marine intertidal zone.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation that the utility model conceals top board and sidewall;
Fig. 3 is the structural representation of the prefabricated reinforced concrete frame in land in Fig. 1.
In figure: 1, the prefabricated reinforced concrete frame in land, 2, foundation pile, 3, cap, 4, Core Walls Structure, 5, upper and lower nose girder, 6, linking beam, 7, conductor string, 8, a reserved stake hole, 9, top board, 10, sidewall, 11, triangle reinforcing rib.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with preferred embodiment.
Embodiment
Refer to accompanying drawing 1-3, the utility model provides a kind of precast concrete jacket-type offshore wind turbine foundation,
Comprise the prefabricated reinforced concrete frame in land 1, foundation pile 2 and cap 3, uniform prefabricated some reserved stake hole 8 on the prefabricated reinforced concrete frame in land, the present embodiment is 16 reserved stake holes, each reserved stake runs through a foundation stake in hole, on the prefabricated reinforced concrete frame in described land, nose girder surface is provided with cap 3, the common integrant precast concrete foundation structure of the reinforced concrete frame that cap can be prefabricated with land and foundation pile.The prefabricated reinforced concrete frame in described land comprises upper and lower nose girder 5, linking beam 6, column, Core Walls Structure 4, top board 9 and sidewall 10, uniform some root posts between described upper and lower nose girder, described upper and lower nose girder central part is provided with columniform Core Walls Structure, and Core Walls Structure center is inserted Core Walls Structure described in blower fan column (not shown) and connected into overall structure by radial linking beam and upper and lower nose girder.Upper and lower nose girder outer periphery surface is provided with sidewall 10, between the linking beam of described upper nose girder, connects into overall structure by top board 9.Described linking beam adopts plain bars or presstressed reinforcing steel, and the junction of described linking beam and Core Walls Structure is provided with triangle reinforcing rib 11, can eliminate the stress at junction surface.The prefabricated reinforced concrete frame shape of cross section in described land is rounded, square, triangle, pentagon or hexagon.The prefabricated reinforced concrete frame in the present embodiment land 1 is for above there being under top board columnar structured without base plate.In the depth of water relatively shallowly district when construction, can cancel top board and sidewall.Described foundation pile adopts concrete pile, prestressed concrete pile or steel pipe pile, and its shape of cross section is circular, square or oval; The shape in described reserved stake hole is mated with foundation pile shape of cross section, and the present embodiment is selected circle.
Preferred version of the present utility model is that column is the hollow conduit post 7 that is placed in corresponding reserved stake hole site between upper and lower nose girder, and described foundation pile runs through in reserved stake hole and conductor string, and described conductor string is corresponding one by one with stake hole.The gap of foundation pile and conductor string can be sealed by grouting, the globality being connected to improve the foundation pile reinforced concrete frame prefabricated with land.
According to on-the-spot waters Design of State constructure scheme.When construction, by cast-in-place cap 3, foundation pile 2 and framework 1 are connected and composed to mass-type foundation structure jointly.Its sectional dimension of foundation pile 2 and stake long according to full scale constructed wetland project design calculate required bearing capacity determine.In the time that foundation soil bearing capacity is lower, foundation pile 2 can provide larger bearing capacity, meets the requirement for bearing capacity of engineering.First the utility model carries out precast concrete framework 1 and lays construction, and framework 1 adopts at land precast reinforced concrete frame, has avoided the temporary structures such as cast-in-place framework palpus construction cofferdam, has saved duration and construction cost.Precast concrete framework 1 adopts air supporting delivery technique waterborne transportation, to construction area, utilizes deadweight and negative pressure to be lowered into mud.After 1 construction of precast concrete framework, foundation pile 2 adopts crane ship or side to refute loop wheel machine group mode of hanging up and beating waterborne and constructs, and ship machine equipment is simple, and pile sinking is not subject to tidal level water depth effect, constructs comparatively flexible, and expense is economized.Precast concrete framework 1 face shaping is cylindrical, and diameter is 5m-40m, and height is determined according to former mud face, design water level and requirement of engineering.Described foundation pile adopts concrete pile, prestressed concrete pile or steel pipe pile, and its shape of cross section is circular, square or oval, and the shape in described reserved stake hole is mated with foundation pile shape of cross section.Described linking beam adopts plain bars or presstressed reinforcing steel.
The prefabricated reinforced concrete frame in land has multiple action, and the one, connect with foundation pile, make total form an entirety, as blower foundation; The 2nd, framework overall structure rigidity is large, can bear larger level and vertical load, increases the stability of structure; The 3rd, framework is provided with a reserved stake hole, the injection of foundation pile is carried out spacing, has improved the construction precision of foundation pile.
The above, be only preferred embodiment of the present utility model, not structure of the present utility model done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of the technical solution of the utility model.
Claims (7)
1. a precast concrete jacket-type offshore wind turbine foundation, it is characterized in that: comprise the reinforced concrete frame that land is prefabricated, foundation pile and cap, the prefabricated reinforced concrete frame in described land comprises upper and lower nose girder, linking beam, column, Core Walls Structure, uniform reserved stake hole on described upper and lower nose girder, described reserved stake runs through foundation pile in hole, uniform some root posts between described upper and lower nose girder, described upper and lower nose girder central part is provided with columniform Core Walls Structure, described Core Walls Structure connects into overall structure by radial linking beam and upper and lower nose girder, described upper nose girder surface is provided with cap, the reinforced concrete frame that described cap and land are prefabricated and foundation pile form integral prefabricated concrete foundation structure.
2. precast concrete jacket-type offshore wind turbine foundation according to claim 1, is characterized in that: described column is the hollow conduit post that is placed in corresponding reserved stake hole site between upper and lower nose girder, and described foundation pile runs through in reserved stake hole and conductor string.
3. precast concrete jacket-type offshore wind turbine foundation according to claim 1 and 2, is characterized in that: described upper and lower nose girder outer periphery surface is provided with sidewall.
4. precast concrete jacket-type offshore wind turbine foundation according to claim 3, is characterized in that: between the linking beam of described upper nose girder, connect into entirety by top board.
5. precast concrete jacket-type offshore wind turbine foundation according to claim 4, is characterized in that: the prefabricated reinforced concrete frame shape of cross section in described land is rounded, square, triangle, pentagon or hexagon.
6. precast concrete jacket-type offshore wind turbine foundation according to claim 5, it is characterized in that: described foundation pile adopts concrete pile, prestressed concrete pile or steel pipe pile, its shape of cross section is circular, square or oval, and the shape in described reserved stake hole is mated with foundation pile shape of cross section.
7. precast concrete jacket-type offshore wind turbine foundation according to claim 6, is characterized in that: described linking beam adopts plain bars or presstressed reinforcing steel, and the junction of described linking beam and Core Walls Structure is provided with triangle reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738790.4U CN203613551U (en) | 2013-11-20 | 2013-11-20 | Precast concrete jacket type offshore wind turbine foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738790.4U CN203613551U (en) | 2013-11-20 | 2013-11-20 | Precast concrete jacket type offshore wind turbine foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203613551U true CN203613551U (en) | 2014-05-28 |
Family
ID=50766207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320738790.4U Expired - Lifetime CN203613551U (en) | 2013-11-20 | 2013-11-20 | Precast concrete jacket type offshore wind turbine foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203613551U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556651A (en) * | 2013-11-20 | 2014-02-05 | 天津港航工程有限公司 | Precast concrete jacket type offshore wind turbine foundation |
| CN105971000A (en) * | 2016-06-16 | 2016-09-28 | 江苏海上龙源风力发电有限公司 | Temporary construction platform of rock-socketed single pile foundation of offshore wind turbine |
-
2013
- 2013-11-20 CN CN201320738790.4U patent/CN203613551U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556651A (en) * | 2013-11-20 | 2014-02-05 | 天津港航工程有限公司 | Precast concrete jacket type offshore wind turbine foundation |
| CN105971000A (en) * | 2016-06-16 | 2016-09-28 | 江苏海上龙源风力发电有限公司 | Temporary construction platform of rock-socketed single pile foundation of offshore wind turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Guo et al. | Review of integrated installation technologies for offshore wind turbines: Current progress and future development trends | |
| CN103556651A (en) | Precast concrete jacket type offshore wind turbine foundation | |
| US20120139255A1 (en) | Technology for combined offshore floating wind power generation | |
| EP2837554A1 (en) | Partially floating marine platform for offshore wind-power, bridges and marine buildings, and construction method | |
| CN201649118U (en) | Foundation structure of jacket-type offshore wind turbine | |
| CA2938727A1 (en) | Method of mooring floating wind turbine platforms | |
| CN204040050U (en) | Mixed type offshore wind power foundation structure | |
| CN103225304B (en) | A kind of marine foundation supporting structure and construction method thereof | |
| CN110984214A (en) | Offshore wind power single pile-wing plate-rockfill composite foundation and construction method thereof | |
| CN211646450U (en) | Offshore wind power single pile-wing plate-rockfill composite foundation | |
| EP2463524B1 (en) | Marine wind turbine whole machine | |
| CN101761090A (en) | Space truss multi-barrel base of offshore wind power unit | |
| CN102162256A (en) | Maritime foundation base | |
| CN106759430A (en) | A kind of wind-powered electricity generation whole machine construction method of three bucket foundations and concrete support structure | |
| CN109469089A (en) | A kind of interpolation type offshore wind farm jacket basis carrying steady pipe casing and construction method | |
| CN105133558A (en) | Deep-water bare rock platform and construction method thereof | |
| CN111391987A (en) | Floating type fan equipment in medium-depth water area | |
| CN103243732A (en) | Installing method of marine anemometer tower base structure | |
| CN201713827U (en) | Fan base structure of offshore wind power station | |
| CN114855865A (en) | Tensioning type fan foundation anchored on rock-based seabed and arrangement method | |
| CN209538210U (en) | A kind of interpolation type offshore wind farm jacket basis carrying steady pipe casing | |
| CN208763050U (en) | Offshore wind turbine gravity caisson basis | |
| CN203613551U (en) | Precast concrete jacket type offshore wind turbine foundation | |
| CN106522263A (en) | Construction method for wind power complete machine of structure composed of four barrel-type foundations and supported by concrete | |
| CN207987950U (en) | Four floating drum buoyancy tank foundation structures on a kind of combined type sea |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |