CN201538971U - Basic structure of high-rise pile cap type offshore wind driven generator - Google Patents

Basic structure of high-rise pile cap type offshore wind driven generator Download PDF

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Publication number
CN201538971U
CN201538971U CN2009201989881U CN200920198988U CN201538971U CN 201538971 U CN201538971 U CN 201538971U CN 2009201989881 U CN2009201989881 U CN 2009201989881U CN 200920198988 U CN200920198988 U CN 200920198988U CN 201538971 U CN201538971 U CN 201538971U
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China
Prior art keywords
bearing platform
steel pipe
concrete
offshore wind
concrete bearing
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Expired - Fee Related
Application number
CN2009201989881U
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Chinese (zh)
Inventor
孙杏建
俞华锋
毛愉菁
郑永明
罗金平
姜贞强
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Hydrochina Hangzhou Engineering Corp
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Hydrochina Hangzhou Engineering Corp
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Priority to CN2009201989881U priority Critical patent/CN201538971U/en
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Publication of CN201538971U publication Critical patent/CN201538971U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a basic structure of a high-rise pile cap type offshore wind driven generator, aiming at providing a basic structure of a high-rise pile cap type offshore wind driven generator which is suitable for sea areas with the water depth ranging from 0 to 20m, applicable to soft soil foundation, can effectively resist sea water corrosion, and is low in cost, reliable and convenient to be constructed. The technical scheme for solving the problem is that: the basic structure of a high-rise pile cap type offshore wind driven generator comprises a concrete bearing platform higher than the sea level and a group of steel pipe piles at the bottom of the bearing platform, wherein the lower end of the steel pipe pile inclines outward slightly; a connection section which is integrally casted with the concrete bearing platform and made from a large-diameter steel pipe is arranged in the centre at the upper part of the concrete bearing platform; and the upper part of the connection section is connected with a tower rack of the wind driven generator set through a flange. The utility model is suitable for processing the structure of the wind driven generator mounted on the sea.

Description

Highrise pile cap formula offshore wind generating foundation structure
Technical field
The utility model relates to a kind of highrise pile cap formula offshore wind generating foundation structure, is applicable to the basis that afloat wind-driven generator is installed is handled.
Background technology
In China, the wind-power electricity generation industry is an emerging industry.Last century, the eighties rose, and China's introduction of foreign technology is Construction of Wind farm at home progressively, after 2000, because country encourages the development and utilization to regenerative resource, domestic wind-power electricity generation industry was developed rapidly.
Up to the present, China in the Inner Mongol, Xinjiang, Hebei and the coastal region in east China built up large quantities of land wind energy turbine set.But along with the extensive development of wind-powered electricity generation industry, the land resources anxiety, day by day manifest with the problem such as shield of giving of local other industries, and China has very long coastline, the marine site is contained abundant wind energy resources, and in recent years, offshore wind farm is developed fast.
Land wind driven generator base generally has two kinds of concrete spread footing and pile foundations, but build wind energy turbine set and common land wind energy turbine set at sea difference is arranged, common land construction machinery and job practices can not be used, and wind driven generator base need adopt pile driving barge piling, concrete to stir the cargo ship concreting; The offshore wind generating basis is owing to be subjected to the influence of wave, and wind driven generator base need solve the problem of wave resistance, and will be convenient to construction; Because the seabed all is the soft foundation of mucky soil or powder sandy soil generally, bearing capacity of foundation soil is very low, and wind driven generator base need solve the problem of soft foundation; Seawater contains a large amount of sulfate ions and chlorion in addition, the water that contains a large amount of sulfate ions and chlorion to concrete, reinforcing bar and steel all be have corrosive, so the offshore wind generating basis also need solve the problem of seawater corrosion.
Because lack the construction experiences of marine wind electric field at present, still do not find a kind of cheapness, reliable based process form.
Summary of the invention
The technical problems to be solved in the utility model is: provides a kind of and is applicable to the marine site of the depth of water in 0~20m scope, is applicable to soft foundation, can effectively resists corrosive properly, and highrise pile cap formula offshore wind generating foundation structure cheap, reliable, easy construction.
The technical scheme that the utility model adopted is: highrise pile cap formula offshore wind generating foundation structure, it is characterized in that: this foundation structure comprises one group of steel pipe pile of the concrete bearing platform that is higher than the sea level and cushion cap bottom, the steel pipe pile lower end is slightly outward-dipping, the center upper portion of concrete bearing platform has with it that the material of monobloc cast is the linkage section of large diameter steel pipe, and linkage section top links to each other with wind-power generating unit tower through flange.
Described steel pipe pile is eight, and the angle of slope is 7: 1, and the steel pipe pile pile crown enters concrete bearing platform bottom concrete 1.5m.
Described concrete bearing platform is circular, divides for two phases built and forms, and fist stage concrete thickness is 80cm, and second stage concrete is built to the cushion cap end face.
Described linkage section end face is higher than highest water level, and its top is provided with inspection platform, and concrete bearing platform one side is provided with the cat ladder of inspection platform, is provided with guard rail around concrete bearing platform and the inspection platform.
The beneficial effects of the utility model are: (1) adopts the concrete highrise pile cap, and cushion cap is positioned on the sea, and can stir cargo ship with concrete and carry out over-water construction, easy construction, and guaranteed construction quality; (2) many steel pipe piles are arranged in cushion cap bottom, and steel pipe pile evenly is provided with around cushion cap, and slightly outward-dipping, and steel pipe pile can be driven piles with pile driving barge, and it is outward-dipping can effectively to reduce the pile body moment of flexure; (3) suspended deck structure is circular, can reduce the effect of unrestrained pressure to greatest extent; (4) cushion cap adopts high-strength concrete, and concrete density and anti-permeability performance are good, and the performance of concrete itself can well be resisted the corrosion of chlorion to reinforcing bar; (5) content of tricalcium aluminate in the restriction cement, the content of tricalcium aluminate is limited between 6~12% in the cement, the corrosion of sulfate ion in the opposing seawater that the cement of this content can be best, the while is not reduced the ability of resisting corrosion of chlorine ion again.
After adopting this structure, wind driven generator base can adapt to the maritime environment of 0~20m degree of depth, foundation uneven settlement and horizontal movement can be effectively controlled, and can well resist the corrosivity of seawater, and have the advantage of cheapness, reliable, easy construction.
Description of drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is a sectional drawing of the present utility model.
The specific embodiment
As shown in Figure 1 and Figure 2, the described foundation structure of present embodiment has 8 steel pipe piles 1, along diameter Circumference evenly distribute, the steel pipe pile diameter is Wall thickness 22mm.Pile tube with deep layer preferably soil layer be bearing stratum, the long need of stake decide according to the size of the residing geological condition of wind driven generator base, wind-powered electricity generation unit, steel pipe pile is transported to on-the-spot then piling by pile driving barge at the whole processing and fabricating of factory.Adopt the postpone of steel pipe pile cloth, present embodiment has well adapted to the geology characteristic of soft foundation, and the requirement of wind-powered electricity generation unit equipment is all satisfied in vertical deformation, horizontal distortion and the inclination on basis, and the steel pipe pile easy construction, and quality is more guaranteed.The steel pipe pile pile crown enters cushion cap concrete 1.5m, and pile crown is anchored in the cushion cap concrete reliably.Pile body is slightly outward-dipping, is " eight " font, and the angle of slope is 7: 1, adopt outward-dipping after, can effectively reduce the pile body moment of flexure, reduce steel pipe thickness.
As shown in Figure 2, present embodiment has concrete bearing platform, and concrete bearing platform is higher than the sea level, and can adopt concrete to stir cargo ship and carry out over-water construction, easy construction, concrete quality is guaranteed.Cushion cap adopts circular, can effectively reduce the effect of unrestrained pressure to the basis, reduces the internal force of stake and the vibration on basis.Present embodiment cushion cap concrete need divide for two phases built, and first pour thickness is 80cm, fist stage concrete 7 intensity reach design strength 80% after can carry out second stage concrete 2 and build, the second phase builds to the cushion cap end face.Before fist stage concrete was built, the cushion cap bottom surface adopted the back cover steel plate to make template, and upper and lower two sections lateral surfaces of cushion cap all should adopt the steel bushing case template of customization.
As shown in Figure 2, present embodiment has linkage section 3, linkage section bottom and cushion cap concrete monobloc cast, and top links to each other with wind-power generating unit tower 8, and linkage section 3 is a large diameter steel pipe, and material is identical with wind-power generating unit tower, adopts flange to link to each other with pylon 8.Linkage section 3 end faces are higher than highest water level, and the electric fixtures of wind power generating set can be arranged in the linkage section, to guarantee that electric fixtures is not influenced by wave.The linkage section top is provided with inspection platform 4, and inspection platform uses steel plate and linkage section integral body at produce in factory, and inspection platform is used for runtime maintenance and maintenance.In addition, cushion cap one side also is provided with the cat ladder 5 of inspection platform, is provided with guard rail 6 around cushion cap and the inspection platform.

Claims (5)

1. highrise pile cap formula offshore wind generating foundation structure, it is characterized in that: this foundation structure comprises one group of steel pipe pile (1) of the concrete bearing platform that is higher than the sea level and cushion cap bottom, the steel pipe pile lower end is slightly outward-dipping, the center upper portion of concrete bearing platform has with it that the material of monobloc cast is the linkage section (3) of large diameter steel pipe, and linkage section top links to each other with wind-power generating unit tower (8) through flange.
2. highrise pile cap formula offshore wind generating foundation structure according to claim 1, it is characterized in that: described steel pipe pile (1) is eight, and the angle of slope is 7: 1, and the steel pipe pile pile crown enters concrete bearing platform bottom concrete 1.5m.
3. highrise pile cap formula offshore wind generating foundation structure according to claim 1 and 2, it is characterized in that: described concrete bearing platform is for circular, divided for two phases built and form, fist stage concrete (7) thickness is 80cm, and second stage concrete (2) is built to the cushion cap end face.
4. highrise pile cap formula offshore wind generating foundation structure according to claim 1 and 2, it is characterized in that: described linkage section (3) end face is higher than highest water level, its top is provided with inspection platform (4), concrete bearing platform one side is provided with the cat ladder (5) of inspection platform, is provided with guard rail (6) around concrete bearing platform and the inspection platform.
5. highrise pile cap formula offshore wind generating foundation structure according to claim 3, it is characterized in that: described linkage section (3) end face is higher than highest water level, its top is provided with inspection platform (4), concrete bearing platform one side is provided with the cat ladder (5) of inspection platform, is provided with guard rail (6) around concrete bearing platform and the inspection platform.
CN2009201989881U 2009-10-23 2009-10-23 Basic structure of high-rise pile cap type offshore wind driven generator Expired - Fee Related CN201538971U (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102444138A (en) * 2011-10-28 2012-05-09 郑俊斌 Anemometry tower provided with laser anemometer
CN102966116A (en) * 2011-09-01 2013-03-13 华锐风电科技(集团)股份有限公司 Pile group foundation device of offshore wind-driven generator set
CN103046575A (en) * 2013-01-28 2013-04-17 中国水电顾问集团西北勘测设计研究院 Land four-leaf-clover-type fan expanded foundation structure
CN103046574A (en) * 2013-01-28 2013-04-17 中国水电顾问集团西北勘测设计研究院 Four-leaf-clover-type concrete bearing platform and prestressed pipe foundation structure of soft foundation fan
CN103352474A (en) * 2013-06-27 2013-10-16 天津大学 High-rise pile cap offshore wind power foundation combining vertical single pile and multiple raking piles
CN103711653A (en) * 2013-12-23 2014-04-09 江苏海力风电设备科技有限公司 High-power external electric appliance assembly working platform of offshore wind turbine generator system tower
CN103835304A (en) * 2014-02-25 2014-06-04 湘电风能(福建)有限公司 High-pile bearing platform foundation structure
CN103998692A (en) * 2012-02-03 2014-08-20 瓦卢瑞克德国有限公司 Foundation structure, which can be installed with a low level of noise, for an offshore plant, in particular an offshore wind energy plant, and assembly method therefor
CN105780760A (en) * 2016-05-27 2016-07-20 王春明 Anti-seismic building pile
CN106545027A (en) * 2016-10-16 2017-03-29 华中科技大学 A kind of ultra-deep washes away the steel pipe pile reinforced method of foundation pile apron
CN108149704A (en) * 2017-12-19 2018-06-12 中国能源建设集团江苏省电力设计院有限公司 A kind of prefabricated assembled High-Rise Pile Cap Foundation structure of offshore wind turbine and installation method
CN108930636A (en) * 2017-05-24 2018-12-04 上海电气风电集团有限公司 Land counterpart blower support construction
CN109715938A (en) * 2016-09-09 2019-05-03 西门子歌美飒可再生能源公司 Transition piece for wind turbine

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966116A (en) * 2011-09-01 2013-03-13 华锐风电科技(集团)股份有限公司 Pile group foundation device of offshore wind-driven generator set
CN102966116B (en) * 2011-09-01 2015-01-07 华锐风电科技(集团)股份有限公司 Pile group foundation device of offshore wind-driven generator set
CN102444138B (en) * 2011-10-28 2013-12-25 郑俊斌 Anemometry tower provided with laser anemometer
CN102444138A (en) * 2011-10-28 2012-05-09 郑俊斌 Anemometry tower provided with laser anemometer
US9663916B2 (en) 2012-02-03 2017-05-30 Vallourec Deutschland Gmbh Foundation structure of an offshore plant, in particular an offshore wind turbine, which foundation structure is to be installed at a low noise level, and installation method therefor
CN103998692A (en) * 2012-02-03 2014-08-20 瓦卢瑞克德国有限公司 Foundation structure, which can be installed with a low level of noise, for an offshore plant, in particular an offshore wind energy plant, and assembly method therefor
CN103046574B (en) * 2013-01-28 2015-09-16 中国电建集团西北勘测设计研究院有限公司 A kind of soft damage blower fan four leaf plum type concrete bearing platform prestressed pipe foundation structure
CN103046575A (en) * 2013-01-28 2013-04-17 中国水电顾问集团西北勘测设计研究院 Land four-leaf-clover-type fan expanded foundation structure
CN103046574A (en) * 2013-01-28 2013-04-17 中国水电顾问集团西北勘测设计研究院 Four-leaf-clover-type concrete bearing platform and prestressed pipe foundation structure of soft foundation fan
CN103046575B (en) * 2013-01-28 2015-07-29 中国电建集团西北勘测设计研究院有限公司 A kind of blower fan spread footing structure of land four leaf plum types
CN103352474A (en) * 2013-06-27 2013-10-16 天津大学 High-rise pile cap offshore wind power foundation combining vertical single pile and multiple raking piles
CN103711653A (en) * 2013-12-23 2014-04-09 江苏海力风电设备科技有限公司 High-power external electric appliance assembly working platform of offshore wind turbine generator system tower
CN103835304B (en) * 2014-02-25 2016-04-27 湘电风能(福建)有限公司 A kind of High-Rise Pile Cap Foundation structure
CN103835304A (en) * 2014-02-25 2014-06-04 湘电风能(福建)有限公司 High-pile bearing platform foundation structure
CN105780760A (en) * 2016-05-27 2016-07-20 王春明 Anti-seismic building pile
CN109715938A (en) * 2016-09-09 2019-05-03 西门子歌美飒可再生能源公司 Transition piece for wind turbine
US10767632B2 (en) 2016-09-09 2020-09-08 Siemens Gamesa Renewable Energy A/S Transition piece for a wind turbine
CN106545027A (en) * 2016-10-16 2017-03-29 华中科技大学 A kind of ultra-deep washes away the steel pipe pile reinforced method of foundation pile apron
CN108930636A (en) * 2017-05-24 2018-12-04 上海电气风电集团有限公司 Land counterpart blower support construction
CN108149704A (en) * 2017-12-19 2018-06-12 中国能源建设集团江苏省电力设计院有限公司 A kind of prefabricated assembled High-Rise Pile Cap Foundation structure of offshore wind turbine and installation method

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100804

Termination date: 20181023

CF01 Termination of patent right due to non-payment of annual fee