CN108532625A - A kind of foundation of wind-driven generator unit - Google Patents
A kind of foundation of wind-driven generator unit Download PDFInfo
- Publication number
- CN108532625A CN108532625A CN201810392449.5A CN201810392449A CN108532625A CN 108532625 A CN108532625 A CN 108532625A CN 201810392449 A CN201810392449 A CN 201810392449A CN 108532625 A CN108532625 A CN 108532625A
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- Prior art keywords
- anchor pole
- anchor
- foundation
- bearing platform
- fixed together
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The present invention relates to a kind of foundation of wind-driven generator unit, it includes tower lower flange, reinforced concrete pile cap, anchor pole, further include anchor slab, casing, tower lower flange is fixed together with anchor slab, it is equipped with concrete bearing platform on basement rock top, the anchor slab is placed on the smooth concrete bearing platform in upper surface, the anchor pole top is fixed together with anchor slab, anchor trend extend into basement rock across concrete bearing platform and is anchored in basement rock, casing is equipped between anchor pole and concrete bearing platform, the anchor pole is to be fixed together with anchor slab after post- tension applies prestressing force.Present invention anchor slab is instead of foundation ring, and it uses the prestressed anchor pole of post- tension application and is fixed together with anchor slab, to make anchor slab be fitted closely always with concrete bearing platform, concrete bearing platform is set to be in pressured state always, it can fundamentally solve the problem of that foundation ring basis fatigue damage generates to destroy and wave the final machine of aggravation.
Description
Technical field
The present invention relates to technical field of wind power generator, and in particular to a kind of foundation of wind-driven generator unit.
Background technology
Wind energy as clean energy resource, have it is inexhaustible and the characteristics of be easy to utilize, with vast potential for future development.
Currently, generally using basic ring type gravity spreading basis in industry, the basis is embedding by the foundation ring that will connect blower fan tower barrel
In the concrete bearing platform of enough major diameters, cushion cap is placed on basement rock, and wind turbine top is resisted using basis dead weight and subgrade reaction
The load born；Disengagement crack between the blower foundation generally existing foundation ring and concrete and foundation ring lower flange periphery
Concrete is crushed the cavity of formation because of long term wear, easily wind turbine is caused to tilt, if discovery is handled not in time, with wind load
Fatigue effect repeatedly, wind turbine waves aggravation, and blower fan tower barrel inclination will increase, and be unable to operate normally even so as to cause wind turbine
Tower occurs.And the base concrete cushion cap diameter need to occupy prodigious land resource generally at 10 meters or so, in addition reinforcing bar is mixed
The material consumptions such as solidifying soil are huge.
As technology is constantly progressive, there is technical optimization in blower foundation：Increase on original base ring gravity spreading basis
Rock-bolt, that is, foundation ring gravity type Rock Bolt Foundation, with reference to attached drawing 1, which is anchored in concrete bearing platform 2,
The other end is anchored in vertically downward in basement rock 4, and the withdrawal resistance provided by anchor pole can limited reduction base concrete dimension of platform
To 8 meters or so.But the basis fundamentally without solve between foundation ring 1 and base concrete it is long-term it is not easy to wear destroy,
Land occupation resource is big, and it is big to expend the materials such as reinforcing bar, concrete.Exist to solve the above foundation ring gravity type Rock Bolt Foundation
Security risk and the big problem of material consumptions such as the big, armored concrete of land occupation resource, therefore, it is necessary to propose one
Plant safe and reliable and economy more preferably wind-power generating unit tower foundation.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of safe and reliable, economical rationality floor spaces
Smaller foundation of wind-driven generator unit.
The technical scheme is that a kind of foundation of wind-driven generator unit comprising tower lower flange, armored concrete are held
Platform, anchor pole further include anchor slab, casing, and tower lower flange is fixed together with anchor slab, and concrete bearing platform is equipped on basement rock top,
The anchor slab is placed on the smooth concrete bearing platform in upper surface, and the anchor pole top is fixed together with anchor slab, and anchor trend is worn
It crosses concrete bearing platform to extend into basement rock and be anchored in basement rock, casing, the anchor is equipped between anchor pole and concrete bearing platform
Bar is to be fixed together with anchor slab after post- tension applies prestressing force.
Preferably, in order to which stress equalization, the tower lower flange are T-flange, external part and the tower of T-flange are fixed
Together, the both sides of T-flange are respectively fixed together by high-strength bolt more than a circle with anchor slab.
Preferably, in order to make anchor slab stress equalization, the anchor pole be divided into interior anchor pole and outer anchor pole, the interior anchor pole and outer anchor
Part is fixed together with anchor slab on bar.
Preferably, in order to provide the withdrawal resistance of bigger, the interior anchor pole is straight anchor pole or is inclined outwardly from top to bottom oblique
Anchor pole.
Preferably, in order to provide the withdrawal resistance of bigger, the outer anchor pole is straight anchor pole or is inclined outwardly from top to bottom oblique
Anchor pole.
The method have the benefit that with anchor slab instead of foundation ring, and use post- tension and apply prestressing force
Anchor pole be fixed together with anchor slab, to make anchor slab be fitted closely always with concrete bearing platform, concrete bearing platform is made to locate always
In pressured state, it can fundamentally solve the problem of that foundation ring basis fatigue damage generates to destroy and wave the final machine of aggravation；
In addition this foundation structure all resists wind turbine upper load by the withdrawal resistance of anchor pole offer, need not want concrete bearing platform oneself
Carry out resist torque again, the size of concrete bearing platform is made to reduce, so the dosage of concrete, reinforcing bar greatly reduces, due to concrete
The size of cushion cap reduces, and land occupation area is reduced.
Description of the drawings
Fig. 1 is prior art basis ring gravity type Rock Bolt Foundation schematic diagram；
Fig. 2 is structural schematic diagram of the embodiment of the present invention；
Fig. 3 is T-flange structural schematic diagram of the embodiment of the present invention
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is anchored framework schematic diagram of the embodiment of the present invention
Fig. 6 is the not deployed structural schematic diagram of anchor pole of the embodiment of the present invention；
Fig. 7 is anchor pole deployed configuration schematic diagram of the embodiment of the present invention；
Fig. 8 is correcting wedge structural schematic diagram of the embodiment of the present invention；
Fig. 9 is outer ring of embodiment of the present invention anchor pole cushion block structure schematic diagram.
Specific implementation mode
Below by specific embodiment, the invention will be further described, and following embodiment is descriptive, is not limit
Qualitatively, protection scope of the present invention cannot be limited with this.
With reference to attached drawing, a kind of foundation of wind-driven generator unit comprising tower lower flange, reinforced concrete pile cap 9, anchor pole 4,
Further include anchor slab 3, casing 8, tower lower flange is fixed together with anchor slab 3, and concrete bearing platform is equipped on 10 top of basement rock, described
Anchor slab 3 is placed on the smooth concrete bearing platform in upper surface, and 4 top of the anchor pole is fixed together with anchor slab 3, and 4 lower part of anchor pole is worn
It crosses concrete bearing platform to extend into basement rock 10 and be anchored in basement rock 10, casing 8 is equipped between anchor pole 4 and concrete bearing platform,
The anchor pole 4 is to be fixed together with anchor slab 3 after post- tension applies prestressing force, for stress equalization, the tower lower flange
For T-flange 1, external part and the tower of T-flange 1 are fixed together, and the both sides of T-flange 1 respectively pass through height more than a circle
Strength bolts 2 are fixed together with anchor slab 3, in order to make 3 stress equalization of anchor slab, the anchor pole 4 divide for interior anchor pole and outer anchor pole, institute
It states partly with anchor slab 3 by being fixed together on interior anchor pole and outer anchor pole, in order to provide the withdrawal resistance of bigger, the interior anchor pole is
Straight anchor pole or the oblique anchor pole being inclined outwardly from top to bottom, in order to provide the withdrawal resistance of bigger, the outer anchor pole be straight anchor pole or from
The oblique anchor pole being inclined outwardly under, the invention also includes correcting wedges 5 and outer ring anchor pole cushion block 6.
The course of work of the embodiment of the present invention is foundation excavation：Design drawing, which is pressed, in seat in the plane excavates original ground surface to basement rock
10；Anchor pole 4 is installed：One end that anchor pole 4 is equipped in basement rock 10 after drilling certain depth enlarged footing is implanted into, and is opened and is expanded after positioning
High-strength cement slurry sealing off and covering anchorage is perfused in major part, fixed rear enclosure is installed on anchor pole 4 in anchor pole 4, after one end in basement rock 10 by drilling
It is embedded in and fixation is taken to fix, the other end needs to be higher by 9 top surface certain altitude of reinforced concrete pile cap；Pouring reinforcement coagulation
Native cushion cap 9：By design drawing assembling reinforcement, linkage levelling screw is preset, template, casting concrete, as required maintenance to design are set
Intensity；Anchor slab 3 is installed：2 one end of high-strength bolt is penetrated into bolt hole simultaneously by 3 injection linkage levelling screw of anchor slab, anchor pole 4, tightens spiral shell
Mother is fixed, and adjusts 3 levelness of anchor slab and fixation by upper and lower two plastic nuts；Pour high-strength grout 7：Under anchor slab 3
7 tank of high-strength grout of hole good fluidity between surface and reinforced concrete pile cap 9 is real, and maintenance is strong to designing as required
Degree；Post- tension applies 4 prestressing force of anchor pole：Wind power generating set bottom section pylon of the lifting equipped with T-flange 1, fastens high-strength spiral shell
Bolt 2 makes T-flange 1 and 3 solid and reliable connection of anchor slab, stretching anchor rod 4 apply prestressing force, waits for 4 tensioning of anchor pole after the completion to casing 8
It is sealed protection.
The method have the benefit that with anchor slab 3 instead of foundation ring 11, and use post- tension application and answer in advance
The anchor pole 4 of power is fixed together with anchor slab 3, to make anchor slab 3 and concrete bearing platform fit closely always, concrete bearing platform is made to begin
Eventually in pressured state, it can fundamentally solve 11 basis fatigue damage of foundation ring and generate destruction, wave the final machine of aggravation
The problem of；In addition this foundation structure is all provided by anchor pole 4 withdrawal resistance resists wind turbine upper load, need not want concrete
The dead weight of cushion cap carrys out resist torque, and the size of concrete bearing platform is made to reduce, so the dosage of concrete, reinforcing bar greatly reduces, by
Reduce in the size of concrete bearing platform, land occupation area is reduced.
Embodiment of above only technical method to illustrate the invention and feature, its object is to allow be familiar with technique
People understands present disclosure and is simultaneously implemented, and it is not intended to limit the scope of the present invention, it is every according to the present invention
Technical spirit any simple modification, equivalent change and modification made to the above embodiment still fall within the protection model of the present invention
It encloses.
Claims (6)
1. a kind of foundation of wind-driven generator unit comprising tower lower flange, reinforced concrete pile cap, anchor pole, which is characterized in that also
Including anchor slab, casing, tower lower flange is fixed together with anchor slab, is equipped with concrete bearing platform on basement rock top, the anchor slab is set
In on the smooth concrete bearing platform in upper surface, the anchor pole top is fixed together with anchor slab, and anchor trend is held across concrete
Platform extend into basement rock and is anchored in basement rock, and casing is equipped between anchor pole and concrete bearing platform, and the anchor pole is post-stretching
Method is fixed together after applying prestressing force with anchor slab.
2. a kind of foundation of wind-driven generator unit according to claim 1, which is characterized in that the tower lower flange is T-type
Flange, external part and the tower of T-flange are fixed together, and the both sides of T-flange respectively pass through high-strength bolt more than a circle
It is fixed together with anchor slab.
3. a kind of foundation of wind-driven generator unit according to claim 1 or claim 2, which is characterized in that the anchor pole
It is divided into interior anchor pole and outer anchor pole, part is fixed together with anchor slab on the interior anchor pole and outer anchor pole.
4. a kind of foundation of wind-driven generator unit according to claim 3, which is characterized in that the interior anchor pole be straight anchor pole or
The oblique anchor pole being inclined outwardly from top to bottom.
5. a kind of foundation of wind-driven generator unit according to claim 3, which is characterized in that the outer anchor pole be straight anchor pole or
The oblique anchor pole being inclined outwardly from top to bottom.
6. a kind of foundation of wind-driven generator unit according to claim 4, which is characterized in that the outer anchor pole be straight anchor pole or
The oblique anchor pole being inclined outwardly from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392449.5A CN108532625A (en) | 2018-04-27 | 2018-04-27 | A kind of foundation of wind-driven generator unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392449.5A CN108532625A (en) | 2018-04-27 | 2018-04-27 | A kind of foundation of wind-driven generator unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108532625A true CN108532625A (en) | 2018-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810392449.5A Pending CN108532625A (en) | 2018-04-27 | 2018-04-27 | A kind of foundation of wind-driven generator unit |
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| Country | Link |
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| CN (1) | CN108532625A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109543287A (en) * | 2018-11-20 | 2019-03-29 | 深能南京能源控股有限公司 | Wind turbines key dimension optimization method based on genetic algorithm |
| CN112593763A (en) * | 2020-12-10 | 2021-04-02 | 中国电建集团贵阳勘测设计研究院有限公司 | Quick construction method of stay wire type anemometer tower under rock geological condition |
| CN113961997A (en) * | 2021-10-19 | 2022-01-21 | 长江勘测规划设计研究有限责任公司 | Design method of large-scale hydroelectric generating set large-part on-site machining station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322073A (en) * | 2011-08-12 | 2012-01-18 | 孟庆波 | Multi-section foundation of wind driven generator weathered rock |
| US20150259915A1 (en) * | 2014-03-17 | 2015-09-17 | Hitachi Metals Techno, Ltd. | Column structure and base member |
| CN104963355A (en) * | 2015-06-24 | 2015-10-07 | 同济大学 | Classification anchoring type draught fan rock anchor rod assembly |
| CN204715393U (en) * | 2015-03-17 | 2015-10-21 | 石健 | The long anchor rod type foundation structure of rock |
| CN106703065A (en) * | 2016-11-17 | 2017-05-24 | 中国电建集团贵州工程公司 | Underwater construction method for rock anchor rod draught fan foundation |
-
2018
- 2018-04-27 CN CN201810392449.5A patent/CN108532625A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322073A (en) * | 2011-08-12 | 2012-01-18 | 孟庆波 | Multi-section foundation of wind driven generator weathered rock |
| US20150259915A1 (en) * | 2014-03-17 | 2015-09-17 | Hitachi Metals Techno, Ltd. | Column structure and base member |
| CN204715393U (en) * | 2015-03-17 | 2015-10-21 | 石健 | The long anchor rod type foundation structure of rock |
| CN104963355A (en) * | 2015-06-24 | 2015-10-07 | 同济大学 | Classification anchoring type draught fan rock anchor rod assembly |
| CN106703065A (en) * | 2016-11-17 | 2017-05-24 | 中国电建集团贵州工程公司 | Underwater construction method for rock anchor rod draught fan foundation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109543287A (en) * | 2018-11-20 | 2019-03-29 | 深能南京能源控股有限公司 | Wind turbines key dimension optimization method based on genetic algorithm |
| CN112593763A (en) * | 2020-12-10 | 2021-04-02 | 中国电建集团贵阳勘测设计研究院有限公司 | Quick construction method of stay wire type anemometer tower under rock geological condition |
| CN113961997A (en) * | 2021-10-19 | 2022-01-21 | 长江勘测规划设计研究有限责任公司 | Design method of large-scale hydroelectric generating set large-part on-site machining station |
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Application publication date: 20180914 |