CN205399469U - Wind turbine foundation structure - Google Patents
Wind turbine foundation structure Download PDFInfo
- Publication number
- CN205399469U CN205399469U CN201620169518.2U CN201620169518U CN205399469U CN 205399469 U CN205399469 U CN 205399469U CN 201620169518 U CN201620169518 U CN 201620169518U CN 205399469 U CN205399469 U CN 205399469U
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- bolt
- crab
- connecting plate
- foundation structure
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Abstract
The utility model provides a wind turbine foundation structure, include: foundation ditch, bed course, basic main part, connecting plate, fixed crab -bolt and prestressing force subassembly, bed course setting are in the foundation ditch bottom, and basic main part device is on the bed course, and basic main part surface is equipped with the recess, and the device has the connecting plate in the recess, and the prestressing force subassembly sets up in basic main part, and the connecting plate is worn out at its top, and fixed crab -bolt is passed connecting plate, basic main part and bed course in proper order and is connected with the rock layer, the utility model has the advantages of as follows: 1. Fixed crab -bolt with connect the crab -bolt and concentrate the distribution radius little, basic main part volume diminishes, consequently basic main part area diminishes, needs that reinforcing bar and concrete quantity lessen, the bolt quantity is few, construction speed is fast, 2 the utility model discloses a volume of the basic main part of foundation structure form decision does not need very greatly, 3. Fixed crab -bolt can vertical setting or the slope set up, fixed crab -bolt slope sets up the aperture that can dwindle anchor hole, select with the screw rod of this aperture looks adaptation, reduction construction cost.
Description
Technical field
This utility model relates to construction project medium-and-large-sized wind power generating set technique for fixing field, especially relates to a kind of fan foundation structure.
Background technology
Foundation of wind-driven generator unit generally to be born the heavy burden load in 360 degree of directions and be had the characteristic of large eccentricity stress, and the load that tower is born reaches foundation ring, reaches basis again through foundation ring.In American-European countries, wind generating technology is more ripe, blower foundation design is had and studies earlier, there has been the technology that standard of comparison is ripe on basis and upper support structure design to Wind turbines, and some wind-power electricity generations power has begun to be extended to offshore wind farm by land wind-powered electricity generation.China is a developing country, although has long history in the utilizing of wind energy, but but starts late in the research of wind-driven generator.The main Types of blower foundation includes traditional gravity type isolated footing, pile foundation and anchor rod foundation.Gravity type isolated footing is simplest foundation pattern, but cost is high, and the ability of opposing extreme operating condition is poor；Pile foundation is safe and reliable, but long construction period, cost is the highest；Anchor rod foundation is limited by the strength and stiffness of anchor pole itself, the ratio comparatively dense that anchor pole must be arranged, does not consider Multi anchorage effect, corrosion and fatigue damage.Abroad from 20 end of the centurys, China then from since the last few years, starting fairly large wind-powered electricity generation construction, the endurance issues of blower fan structure increasingly receives publicity.The projected life of general wind power generating set is 15～20 years, and the projected life of blower foundation is 50 years, for this, one of important content that the durability on basis considers when being blower foundation design.
Being located in the wind power plant of mountain area or hilly country, blower fan is arranged on rock foundation mostly.It is presently used for the blower foundation on rock foundation and mainly has ordinary reinforced concrete spread foundation and two kinds of forms of Rock Bolt Foundation.
(1) ordinary reinforced concrete spread foundation.During construction, on rock foundation, first excavate the larger-size foundation ditch in chassis, then by concreting in foundation ditch, form spread foundation, spread foundation diameter, up to 15-30 rice, highly reaches 3-5 rice, it is necessary to a large amount of armored concrete of about 300-500 cubic meter are built and formed.Spread foundation can only lean on the scale of construction on basis and the deadweight that brings of buried depth and backfill soil pressure to resist tilting moment.Though this kind of basic engineering experience maturation, easy construction, excavated volume is big, and backfill soil is many.When this kind of basis is for fractured rock ground, still there is bigger superiority.But as run into Classification of Engineering Rocks be harder and above, complete and above rock foundation time, not only quantities is big, also can be big because of excavated volume and dig and motionless cause duration problem and equipment attrition problem.It addition, conventional foundation side's amount is big, the engineering time that will complete disposable continuous placing is long, but Changes in weather fast day and night temperature in mountain region is relatively big, and wind energy turbine set road conditions difference easily freezes, and causes that concrete easily goes wrong in mix, conveying, casting process.The drawbacks such as the construction cost of ordinary reinforced concrete spread foundation, construction quality, duration, environmental protection highlight.
(2) Rock Bolt Foundation.Rock Bolt Foundation undertakes the tension between basis and rock foundation by anchor pole, effectively reduces key dimension and buried depth, considerably reduces quantities.Existing Rock Bolt Foundation includes foundation ring, armored concrete plummer, bottom armored concrete plummer, the uniform setting in periphery is secured to the tension anchor pole connected, this anchor pole one end is arranged in rock foundation, the other end is positioned at armored concrete plummer, hold rock foundation and armored concrete plummer by anchor pole, solve the series of problems of ordinary reinforced concrete spread foundation.But, due to anchor pole be direct buried foundation concrete with in rock foundation, only after anchor pole and basis start to produce to disengage and between basement rock and anchor pole closely knit sting tight after, anchor pole just can be made to start tension and to extend Developed fiber strength gradually and produce pulling force.This segment length is difficult to determine and be difficult to control to, and adds Fatigue Load, it may happen that tower tilt problem in actual motion.
Utility model content
The purpose of this utility model is in that to provide a kind of fan foundation structure, to solve the problems of the prior art.
The fan foundation structure that this utility model provides, including: foundation ditch, bed course, basic body, connecting plate, fixing crab-bolt and prestressing force assembly, described bed course is arranged on bottom foundation ditch, described basic body device is on bed course, described basic body surface is provided with groove, described groove is built-in is equipped with connecting plate, described prestressing force assembly is arranged in basic body, its top passes connecting plate, described fixing crab-bolt sequentially passes through connecting plate, basic body and bed course and is connected with lithosphere, first carry out basic body construction, after be fixed boring and the subsequent construction of crab-bolt.
Further, described fixing crab-bolt periphery needs the full hole of grout filling, and in fixing crab-bolt, the part with basic body and layer contacts is set with sleeve pipe.
Further, described prestressing force assembly includes tower drum flange, connects crab-bolt and base ring, described tower drum flange and base ring by connecting anchor bolts, and described tower drum flange is arranged on above connecting plate, and described connection crab-bolt top passes connecting plate and tower drum flange.
Further, described basic body is built molding by armored concrete.
Further, described fixing crab-bolt vertically or is obliquely installed.
Further, described connecting plate is by adjusting bolt device in groove.
Further, described fixing crab-bolt and connection crab-bolt are arranged along basic body centrage annular.
Further, described fixing crab-bolt shares a connecting plate distribution with being connected crab-bolt, and fixing crab-bolt individual pen, double-round or multi-turn are arranged.
Further, the length of described fixing crab-bolt is more than the length connecting crab-bolt.
Further, described fixing crab-bolt and connection crab-bolt all need Shi Hanzhang.
Further, described fixing crab-bolt all needs to do preservative treatment with being connected crab-bolt.
The fan foundation structure that this utility model provides, have the advantage that bed course is arranged on bottom foundation ditch, basic body device is on bed course, basic body surface is provided with groove, groove is built-in is equipped with connecting plate, prestressing force assembly is arranged in basic body, its top passes connecting plate, fixing crab-bolt sequentially passes through connecting plate, basic body and bed course are connected with lithosphere, above-mentioned setting make fan foundation structure of the present utility model have the advantage that 1. fix crab-bolt and connect crab-bolt integrated distribution radius little, the volume of basic body diminishes, therefore the floor space of basic body diminishes, the reinforcing bar and the concrete amount that need tail off, bolt consumption is few, speed of application is fast；2. base structure form of the present utility model determines that the volume of basic body need not be very big；3. fix crab-bolt to be vertically arranged or be obliquely installed, thus causing that on basic body and connecting plate, the anchor hole of corresponding fixing crab-bolt position is straight hole or inclined hole, fixing crab-bolt is obliquely installed the aperture that can reduce anchor hole, thus selecting the screw rod suitable with this aperture, reduces construction cost.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The schematic diagram of the fan foundation structure that Fig. 1 provides for this utility model embodiment one；
Fig. 2 is the structural representation of this utility model prestressing force assembly；
The schematic diagram of the fan foundation structure that Fig. 3 provides for this utility model embodiment two；
The schematic diagram of the fan foundation structure that Fig. 4 provides for this utility model embodiment three；
The schematic diagram of the fan foundation structure that Fig. 5 provides for this utility model embodiment four.
Accompanying drawing labelling:
1-foundation ditch；2-bed course；3-basic body；
4-connecting plate；5-fixes crab-bolt；6-adjusts bolt；
7-prestressing force assembly；8-sleeve pipe；31-groove；
71-tower drum flange；72-connects crab-bolt；73-base ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term "left", "right", " interior ", " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in this utility model.
nullAs depicted in figs. 1 and 2，The schematic diagram of the fan foundation structure that this utility model embodiment one provides，Including foundation ditch 1、Bed course 2、Basic body 3、Connecting plate 4、Fixing crab-bolt 5 and prestressing force assembly 7，Bed course 2 is arranged on bottom foundation ditch 1，Bed course 2 plays the effect of protection foundation ditch 1，Basic body 3 device is on bed course 2，Basic body 3 surface is provided with groove 31，Groove 31 is built-in is equipped with connecting plate 4，Connecting plate 4 is by adjusting bolt 6 device in groove 31，The flatness of connecting plate 4 is regulated by adjusting bolt 6，Ensure connecting plate 4 level，Prestressing force assembly 7 is arranged in basic body 3，Its top passes connecting plate 4，Fixing crab-bolt 5 sequentially passes through connecting plate 4、Basic body 3 and bed course 2 are connected with lithosphere，Fixing crab-bolt 5 periphery needs the full hole of grout filling，The part contacted with basic body 3 and bed course 2 in fixing crab-bolt 5 is set with sleeve pipe 8，The fixing crab-bolt 5 of the left one side of something of basic body 3 is for being vertically arranged，The fixing crab-bolt 5 of the right one side of something of basic body 3 is for being obliquely installed，The fixing crab-bolt 5 being obliquely installed can reduce crab-bolt aperture，Use the fixing crab-bolt 5 suitable with small-bore，Reduce construction cost,Prestressing force assembly 7 includes tower drum flange 71、Connect crab-bolt 72 and base ring 73，Tower drum flange 71 and base ring 73 connect by connecting crab-bolt 72，Tower drum flange 71 is arranged on above connecting plate 4，Connect crab-bolt 72 top and pass tower drum flange 71 and connecting plate 4，Connect crab-bolt 72 for being connected with blower fan tower barrel，Eliminate the operation being embedded in basic body by crab-bolt cage in routine techniques，Thus increasing speed of application、Reduce construction cost，Basic body 3 is used for providing the surface of a level for fixing crab-bolt 5 and connection crab-bolt 72 and fixing crab-bolt 5 and the prestressing force connecting crab-bolt 72 being shared base,Connect and crab-bolt 72 is set with sleeve pipe 8,Basic body 3 is built molding by armored concrete,Sleeve pipe 8 is managed for PE，The length of fixing crab-bolt 5 is more than the length connecting crab-bolt 72，The required concrete length foundation of fixing crab-bolt 5 calculates；Fixing crab-bolt 5 and connection crab-bolt 72 are arranged along basic body 3 centrage annular；Fixing crab-bolt 5 is distributed with being connected the shared connecting plate 4 of crab-bolt 72, and fixing crab-bolt 5 individual pen, double-round or multi-turn are arranged；Fixing crab-bolt 5 and connection crab-bolt 72 all need Shi Hanzhang；Fixing crab-bolt 5 all needs to do preservative treatment with being connected crab-bolt 72, increases fixing crab-bolt 5 and connects the service life of crab-bolt 72.
Having the technical effect that of the technical scheme of embodiment one
1, fixing crab-bolt 5 and to connect crab-bolt 72 integrated distribution radius little, the volume of basic body 3 diminishes, and therefore the floor space of basic body 3 diminishes, it is necessary to reinforcing bar and concrete amount tails off, crab-bolt consumption is few, speed of application is fast.
2, the fixing crab-bolt 5 of the left one side of something of basic body 3 is for being vertically arranged, the fixing crab-bolt 5 of right one side of something is for being obliquely installed, the fixing crab-bolt 5 being obliquely installed can reduce the aperture of anchor hole, use the fixing crab-bolt suitable with the aperture of this anchor hole, reduce the cost of fixing crab-bolt, thus saving construction cost.
3, the length of fixing crab-bolt 5 is more than the length connecting crab-bolt 72, and the connection crab-bolt 72 being connected with tower is short crab-bolt, and therefore, the length of connection crab-bolt 72 and the length of fixing crab-bolt 5 are inconsistent, save the cost of crab-bolt, thus further saving construction cost.
As shown in Figure 3, the schematic diagram of the fan foundation structure that this utility model embodiment two provides, the fixing crab-bolt 5 of left one side of something of basic body 3 is for being obliquely installed, the fixing crab-bolt 5 of right one side of something is for being vertically arranged, the connection crab-bolt 72 of prestressing force assembly 7 is for being connected with blower fan tower barrel, sleeve pipe 8 is pvc pipe, and the length of fixing crab-bolt 5, more than the length connecting crab-bolt 72, connects crab-bolt 72 and is used for connecting basic body 3 and tower drum flange 71.
The technical scheme of embodiment two to have the technical effect that embodiment two illustrates a kind of identical with embodiment one technique effect, but fixing crab-bolt arranges contrary technical scheme on basic body, the fixing crab-bolt 5 of the left one side of something of basic body 3 is for being obliquely installed, and the fixing crab-bolt 5 of right one side of something is for being vertically arranged.
As shown in Figure 4, the schematic diagram of the fan foundation structure that this utility model embodiment three provides, the fixing crab-bolt 5 of the left one side of something of basic body 3 is for being vertically arranged, the fixing crab-bolt 5 of right one side of something is also for being vertically arranged, the connection crab-bolt 72 of prestressing force assembly 7 is for being connected with blower fan tower barrel, sleeve pipe 8 is managed for PE, and the length of fixing crab-bolt 5, more than the length connecting crab-bolt 72, connects crab-bolt 72 and is used for connecting basic body 3 and tower drum flange 71.
The fixing crab-bolt 5 having the technical effect that the left one side of something of basic body of the technical scheme of embodiment three is for being vertically arranged, the fixing crab-bolt 5 of right one side of something is also for being vertically arranged, although the fixing crab-bolt 5 being vertically arranged can not reduce the diameter of the anchor hole on basic body 3 and connecting plate 4, but the length of fixing crab-bolt 5 is more than the length connecting crab-bolt 72, the connection crab-bolt 72 being connected with tower is short crab-bolt, therefore, the waste of crab-bolt still can be saved, thus further saving construction cost.
As shown in Figure 5, the schematic diagram of the fan foundation structure that this utility model embodiment four provides, the fixing crab-bolt 5 of the left one side of something of basic body 3 is for being obliquely installed, the fixing crab-bolt 5 of right one side of something is also for being obliquely installed, the connection crab-bolt 72 of prestressing force assembly 7 is for being connected with blower fan tower barrel, sleeve pipe 8 is pvc pipe, and the length of fixing crab-bolt 5, more than the length connecting crab-bolt 72, connects crab-bolt 72 and is used for connecting basic body 3 and tower drum flange 71.
The fixing crab-bolt 5 having the technical effect that the left one side of something of basic body of the technical scheme of embodiment four is for being obliquely installed, the fixing crab-bolt 5 of right one side of something is also for being obliquely installed, the fixing crab-bolt 5 being obliquely installed makes the diameter of the anchor hole on basic body 3 and connecting plate 4 diminish, thus selecting the crab-bolt suitable with this aperture, reduce the cost of crab-bolt, reduce construction cost；The length of fixing crab-bolt is more than the length connecting crab-bolt, the connection crab-bolt being connected with tower is short crab-bolt, therefore, the fixing crab-bolt of the upper left one side of something of basic body and right one side of something is and is obliquely installed, the length of fixing crab-bolt is more than the length connecting crab-bolt, for the arrangement and method for construction that this utility model fan foundation structure cost is minimum.
The construction stream of this utility model fan foundation structure is；
Excavation of foundation pit → build makes marks on bed course → bed course, and place anchor-rod positioner → side and wire-tie → cast-in fixing bolt poling → build basic body, now, tool mold is placed into cushion cap surface, form grout groove and be accurately positioned bolthole, the size of tool structure, it is all calculate according to the load of superstructure to form → take out tool mold, in addition reserved bore position place boring before, boring can be straight can also be oblique, two circles → placement flange connecting plate inside and outside tower, be in the milk → place anchor pole for survey flatness → flange connecting plate and concrete gap, and anchor pole cavity and anchor pole between gap location grouting → Shi Hanzhang → lifting tower.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, it is not intended to limit；Although this utility model being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein some or all of technical characteristic is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of this utility model.
Claims (11)
1. a fan foundation structure, it is characterized in that, including: foundation ditch, bed course, basic body, connecting plate, fixing crab-bolt and prestressing force assembly, described bed course is arranged on bottom foundation ditch, and described basic body device is on bed course, and described basic body surface is provided with groove, described groove is built-in is equipped with connecting plate, described prestressing force assembly is arranged in basic body, and its top passes connecting plate, and described fixing crab-bolt sequentially passes through connecting plate, basic body and bed course and is connected with lithosphere.
2. fan foundation structure according to claim 1, it is characterised in that: described fixing crab-bolt periphery needs the full hole of grout filling, and in fixing crab-bolt, the part with basic body and layer contacts is set with sleeve pipe.
3. fan foundation structure according to claim 1, it is characterized in that, described prestressing force assembly includes tower drum flange, connects crab-bolt and base ring, described tower drum flange and base ring are by connecting anchor bolts, described tower drum flange is arranged on above connecting plate, and described connection crab-bolt top passes connecting plate and tower drum flange.
4. fan foundation structure according to claim 1, it is characterised in that described basic body is built molding by armored concrete.
5. fan foundation structure according to claim 1 and 2, it is characterised in that described fixing crab-bolt vertically or is obliquely installed.
6. fan foundation structure according to claim 1, it is characterised in that described connecting plate is by adjusting bolt device in groove.
7. fan foundation structure according to claim 5, it is characterised in that described fixing crab-bolt and connection crab-bolt are arranged along basic body centrage annular.
8. fan foundation structure according to claim 7, it is characterised in that described fixing crab-bolt shares a connecting plate distribution with being connected crab-bolt, and fixing crab-bolt individual pen, double-round or multi-turn are arranged.
9. fan foundation structure according to claim 8, it is characterised in that the length of described fixing crab-bolt is more than the length connecting crab-bolt.
10. fan foundation structure according to claim 9, it is characterised in that described fixing crab-bolt and connection crab-bolt all need Shi Hanzhang.
11. fan foundation structure according to claim 10, it is characterised in that described fixing crab-bolt all needs to do preservative treatment with being connected crab-bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620169518.2U CN205399469U (en) | 2016-03-04 | 2016-03-04 | Wind turbine foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620169518.2U CN205399469U (en) | 2016-03-04 | 2016-03-04 | Wind turbine foundation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205399469U true CN205399469U (en) | 2016-07-27 |
Family
ID=56445126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620169518.2U Expired - Fee Related CN205399469U (en) | 2016-03-04 | 2016-03-04 | Wind turbine foundation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205399469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604086A (en) * | 2016-03-04 | 2016-05-25 | 北京中水新能工程技术有限公司 | Fan foundation structure |
| CN106638658A (en) * | 2016-10-29 | 2017-05-10 | 中国十七冶集团有限公司 | Construction method for building road to foundation bottom of fan |
-
2016
- 2016-03-04 CN CN201620169518.2U patent/CN205399469U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604086A (en) * | 2016-03-04 | 2016-05-25 | 北京中水新能工程技术有限公司 | Fan foundation structure |
| CN105604086B (en) * | 2016-03-04 | 2018-10-23 | 北京中水新能工程技术有限公司 | Fan foundation structure |
| CN106638658A (en) * | 2016-10-29 | 2017-05-10 | 中国十七冶集团有限公司 | Construction method for building road to foundation bottom of fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20170304 |