CN103556651A - Precast concrete jacket type offshore wind turbine foundation - Google Patents

Precast concrete jacket type offshore wind turbine foundation Download PDF

Info

Publication number
CN103556651A
CN103556651A CN201310589645.9A CN201310589645A CN103556651A CN 103556651 A CN103556651 A CN 103556651A CN 201310589645 A CN201310589645 A CN 201310589645A CN 103556651 A CN103556651 A CN 103556651A
Authority
CN
China
Prior art keywords
foundation
wind turbine
offshore wind
pile
nose girder
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.)
Pending
Application number
CN201310589645.9A
Other languages
Chinese (zh)
Inventor
张佩良
刘凤松
陈强
米刘芳
丁文智
李德刚
李格平
杨庆明
张振山
何福渤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Port & Channel Engineering Co Ltd
Original Assignee
Tianjin Port & Channel Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Port & Channel Engineering Co Ltd filed Critical Tianjin Port & Channel Engineering Co Ltd
Priority to CN201310589645.9A priority Critical patent/CN103556651A/en
Publication of CN103556651A publication Critical patent/CN103556651A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a precast concrete jacket type offshore wind turbine foundation. The offshore wind turbine foundation is characterized by comprising an reinforced concrete frame precast ashore, foundation piles and a cap beam, wherein the reinforced concrete frame precast ashore comprises upper and lower guide beams, a connecting beam, 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; a cylindrical core tube is arranged in the center of the upper and lower guide beams; the core tube is connected with the upper and lower guide beams through the radial connecting beam 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 as follows: a traditional practice that offshore gravity type foundations adopt conventional cast-in-place concrete foundations is changed, the lighter reinforced concrete structure frame is precast ashore firstly and then placed at the seabed of a coastline, and 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

Precast concrete jacket-type offshore wind turbine foundation
Technical field
The invention belongs to precast concrete foundation, relate 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, not only will bear dead load, wind load, also will bear wave, drag force etc. by the firm afloat important building of blower fan; 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, the desk-top basis of basic, the many pile of jacket-type.
Single pile type foundation: the type basis consists 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 that jacket He Zhuan, village will 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 comprised of foundation pile and top cushion cap.During 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, offshore wind turbine foundation construction is subject to the factors such as weather, wave to affect larger, can the engineering time shorter, difficulty of construction is large, should be according to China coastal seas condition, construction ability, construction level, the sustainable development of determining offshore wind turbine foundation pattern ,Wei China offshore wind farm industry that economically feasible tallies with the national condition provides support.
Summary of the invention
The object of the invention 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, without doing any sea bed, prepare, be especially suitable as large fan basis, marine intertidal zone.
The present invention 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, by top board, connect into integral body.
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 present invention adopts on land first prefabricated light-dutyer reinforced concrete structure framework, put it into behind the seabed in coastline, insert again prefabricated foundation pile, without doing any sea bed, prepare, can build up whole 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 invention;
Fig. 2 is the structural representation that the present invention 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
Below in conjunction with preferred embodiment, describe the specific embodiment of the present invention in detail.
Embodiment
Refer to accompanying drawing 1-3, the invention 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, in each reserved stake hole, run through a foundation stake, 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, by top board 9, connects into overall structure.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 depth of water district when construction relatively shallowly, 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 invention 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.During 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 be long calculates required bearing capacity according to full scale constructed wetland project design and determines.When foundation soil bearing capacity is lower, foundation pile 2 can provide larger bearing capacity, meets the requirement for bearing capacity of engineering.First the present invention 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 integral body, 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 invention, not structure of the present invention done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical scheme of the present invention.

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, by top board, connect into integral body.
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.
CN201310589645.9A 2013-11-20 2013-11-20 Precast concrete jacket type offshore wind turbine foundation Pending CN103556651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310589645.9A CN103556651A (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
CN201310589645.9A CN103556651A (en) 2013-11-20 2013-11-20 Precast concrete jacket type offshore wind turbine foundation

Publications (1)

Publication Number Publication Date
CN103556651A true CN103556651A (en) 2014-02-05

Family

ID=50010988

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310589645.9A Pending CN103556651A (en) 2013-11-20 2013-11-20 Precast concrete jacket type offshore wind turbine foundation

Country Status (1)

Country Link
CN (1) CN103556651A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103912007A (en) * 2014-03-14 2014-07-09 中国水电顾问集团西北勘测设计研究院有限公司 Prefabricated concrete cushion cap preserved with foundation ring hole and pile recess ring hole and mounting method of assembly type multi-pile foundation based on cushion cap
CN103912006A (en) * 2014-03-14 2014-07-09 中国水电顾问集团西北勘测设计研究院有限公司 Assembled multi-pile foundation structure and construction method thereof
CN103938644A (en) * 2014-03-14 2014-07-23 中国水电顾问集团西北勘测设计研究院有限公司 Prefabricated concrete bearing platform with reserved pile nest holes and fabricated multi-pile foundation installation method based on prefabricated concrete bearing platform with reserved pile nest holes
CN103938645A (en) * 2014-03-14 2014-07-23 中国水电顾问集团西北勘测设计研究院有限公司 Prefabricated concrete bearing platform with reserved foundation ring hole and reserved pile nest holes and fabricated multi-pile foundation installation method based on prefabricated concrete bearing platform with reserved foundation ring hole and reserved pile nest holes
CN106741689A (en) * 2016-12-06 2017-05-31 哈尔滨工业大学深圳研究生院 A kind of Spar types prefabricated PC armored concrete floating offshore blower foundation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008084971A1 (en) * 2007-01-11 2008-07-17 Dong Taek Suh Method of establishing sea wind power generator using the leading rail
JP2010064649A (en) * 2008-09-11 2010-03-25 Mitsui Eng & Shipbuild Co Ltd Taut mooring float and method for towing and installing taut mooring float
CN202298644U (en) * 2011-10-26 2012-07-04 江苏海上龙源风力发电有限公司 Open caisson type gravity foundation for offshore wind power
CN102995655A (en) * 2012-12-16 2013-03-27 天津大学 Cylindrical structure and pile group combined type offshore wind turbine foundation
CN203613551U (en) * 2013-11-20 2014-05-28 天津港航工程有限公司 Precast concrete jacket type offshore wind turbine foundation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008084971A1 (en) * 2007-01-11 2008-07-17 Dong Taek Suh Method of establishing sea wind power generator using the leading rail
JP2010064649A (en) * 2008-09-11 2010-03-25 Mitsui Eng & Shipbuild Co Ltd Taut mooring float and method for towing and installing taut mooring float
CN202298644U (en) * 2011-10-26 2012-07-04 江苏海上龙源风力发电有限公司 Open caisson type gravity foundation for offshore wind power
CN102995655A (en) * 2012-12-16 2013-03-27 天津大学 Cylindrical structure and pile group combined type offshore wind turbine foundation
CN203613551U (en) * 2013-11-20 2014-05-28 天津港航工程有限公司 Precast concrete jacket type offshore wind turbine foundation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103912007A (en) * 2014-03-14 2014-07-09 中国水电顾问集团西北勘测设计研究院有限公司 Prefabricated concrete cushion cap preserved with foundation ring hole and pile recess ring hole and mounting method of assembly type multi-pile foundation based on cushion cap
CN103912006A (en) * 2014-03-14 2014-07-09 中国水电顾问集团西北勘测设计研究院有限公司 Assembled multi-pile foundation structure and construction method thereof
CN103938644A (en) * 2014-03-14 2014-07-23 中国水电顾问集团西北勘测设计研究院有限公司 Prefabricated concrete bearing platform with reserved pile nest holes and fabricated multi-pile foundation installation method based on prefabricated concrete bearing platform with reserved pile nest holes
CN103938645A (en) * 2014-03-14 2014-07-23 中国水电顾问集团西北勘测设计研究院有限公司 Prefabricated concrete bearing platform with reserved foundation ring hole and reserved pile nest holes and fabricated multi-pile foundation installation method based on prefabricated concrete bearing platform with reserved foundation ring hole and reserved pile nest holes
CN103938644B (en) * 2014-03-14 2015-10-28 中国电建集团西北勘测设计研究院有限公司 The reserved precast concrete cushion cap of stake socket bore and the assembling many pile foundations mounting method based on this cushion cap
CN103938645B (en) * 2014-03-14 2016-05-04 中国电建集团西北勘测设计研究院有限公司 The precast concrete cushion cap in reserved basic annular distance and stake nest hole and many pile foundations of the assembled installation method based on this cushion cap
CN103912007B (en) * 2014-03-14 2016-05-25 中国电建集团西北勘测设计研究院有限公司 The installation method of the precast concrete cushion cap of reserved basic annular distance and stake nest annular distance and the many pile foundations of assembled based on this cushion cap
CN106741689A (en) * 2016-12-06 2017-05-31 哈尔滨工业大学深圳研究生院 A kind of Spar types prefabricated PC armored concrete floating offshore blower foundation

Similar Documents

Publication Publication Date Title
US20190263477A1 (en) Method of Assembling A Floating Wind Turbine Platform
EP2837554A1 (en) Partially floating marine platform for offshore wind-power, bridges and marine buildings, and construction method
US20120139255A1 (en) Technology for combined offshore floating wind power generation
CN201649118U (en) Foundation structure of jacket-type offshore wind turbine
CN103556651A (en) Precast concrete jacket type offshore wind turbine foundation
CN103225304B (en) A kind of marine foundation supporting structure and construction method thereof
CN201952809U (en) Steel truss type offshore anemometer tower foundation structure
CN102162256A (en) Maritime foundation base
CN102041813B (en) Offshore wind generator single pile base structure with stabilizer fin
CN110984214A (en) Offshore wind power single pile-wing plate-rockfill composite foundation and construction method thereof
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
EP2463524B1 (en) Marine wind turbine whole machine
CN103243732A (en) Installing method of marine anemometer tower base structure
CN204040050U (en) Mixed type offshore wind power foundation structure
CN101876174A (en) Foundation structure of marine wind electric field fan
CN209538210U (en) A kind of interpolation type offshore wind farm jacket basis carrying steady pipe casing
CN201943084U (en) Negative pressure bucket type foundation structure for offshore wind driven generator with stabilizers
CN101545462B (en) A steel-concrete combined weight type offshore wind fan foundation structure
CN203613551U (en) Precast concrete jacket type offshore wind turbine foundation
CN207987950U (en) Four floating drum buoyancy tank foundation structures on a kind of combined type sea
CN106677121B (en) Protect the movable permeable spur structure and construction method of Coastal erosion
JP2020510145A (en) A self-sustaining, floating, heavy-weight base for connection to a floating offshore facility
CN105908772B (en) The construction method of offshore wind turbine gravity type foundation, basic system and gravity type foundation
CN201713827U (en) Fan base structure of offshore wind power station

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140205