CN201785769U - Foundation of wind power generating unit - Google Patents
Foundation of wind power generating unit Download PDFInfo
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- CN201785769U CN201785769U CN201020251726XU CN201020251726U CN201785769U CN 201785769 U CN201785769 U CN 201785769U CN 201020251726X U CN201020251726X U CN 201020251726XU CN 201020251726 U CN201020251726 U CN 201020251726U CN 201785769 U CN201785769 U CN 201785769U
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Abstract
The utility model relates to a foundation of a wind power generating unit, in particular to a high-power wind power generating unit foundation which is more suitable for areas with severe geological conditions, such as mudflats or shallow sea, and capable of preventing the wind power generating unit from overturning. The foundation is structurally characterized in that at least three cantilevers which bear main overturn bending moment of the wind power generating unit are radially distributed around a bearing platform which bears main vertical load of the wind power generating unit, cantilever bolsters are arranged below the cantilevers and respectively arranged among outer ends of the cantilevers and the bearing platform, upper ends of anchor rods or anchor ropes are connected to the outer ends of the cantilevers while lower ends are buried into rocks or anchoring members thrown in water, and a ground foundation supported under the bearing platform and the cantilever bolsters is a complete piece of foundation or segmental foundations corresponding to positions of the bearing platform and the cantilever bolsters. Components of the foundation except the bearing platform can be in industrial production, and the foundation can realize field construction conveniently, thereby reducing construction cost.
Description
Technical field
The utility model relates to a kind of basis of wind power generating set, particularly relates to a kind of zone that more is applicable to the geological conditions difference such as beach or shallow sea, more can prevent the basis of the high-power wind-driven generator group that the wind-powered electricity generation unit topples.
Background technology
The basic stress characteristics of wind power generating set are to bear the vertical load Fz of unit simultaneously, overturning moment Mr, horizontal loading Fr and moment of torsion Mz, and horizontal loading Fr that is born and overturning moment Mr, may be from any direction, wherein overturning moment Mr is again the major control condition of base fixed.At present, the basis of land wind power generating set mainly contains following several types:
One, entity gravity type foundation, this basis keep stable by the native stone of conducting oneself with dignity or be carried on this basis fully, and concrete amount is many, foundation excavation and native stone backfill amount are big, the basis must adopt on-site concrete to build, and has strengthened the difficulty of construction, the difficulty more of constructing in beach, neritic area.This basis has stronger anti-pressure ability, but overturning or slip resistance analysis moment of flexure ability is lower.
Two, prop up the post fixing type basis, this basis is adopt to excavate or the method for boring, large diameter pile tube is imbedded underground, and its overturning or slip resistance analysis moment of flexure ability depends primarily on the underground degree of depth of pile tube injection.In pile tube, must join the cloth reinforcing bar, and concreting at the scene.This infrastructure cost is higher, and difficulty of construction is also bigger.
Three, grillage beam type basis, 8 semi girder stakes on this basis are stretched out outward by concrete foundation, form groined type, and this structural excavation and backfill stone amount are less, but still need build a large amount of concrete at the scene, its overturning or slip resistance analysis moment of flexure ability is subjected to the restriction of foundation area.
The basis of offshore wind generating group mainly contains gravity fixed, post fixing type, suction type barrel base and the formula basis etc. of floating.
Be in ungetable Gobi desert, mountain region and beach, shallow sea because the wind energy turbine set majority of wind power generating set is installed, execution conditions are relatively poor, will be subjected to the restriction of a lot of natural conditions in the construction.At these special circumstances, the technical scheme that proposes has at present:
Patent document 1: the patent No. is the basis that the Chinese patent " pedestal that is used for wind power installation " of ZL200480012576.4 discloses an a kind of wind power generating set, this basis is made up of a plurality of prefabricated units foundation leg modules, on the foundation leg module, be provided with and have sole and support component, this basis can conveniently be transported, and assemble at the scene, can accelerate the construction speed on the basis of wind power generating set.The shortcoming on this basis be the assembling after be equivalent to the bottom be the degree plate of an integral body, unless have sizable size, otherwise its place in the geological conditions difference is easy to topple, if accomplish very big size, its manufacturing cost, cost of transportation, installation cost are all quite huge.
Patent document 2: number of patent application is that the Chinese patent application " annular bearing bottom plate grillage beam type wind-power generating tower foundation " of CN200810033781.9 discloses a kind of by concrete foundation base plate, semi girder, the edge girder, the prestressing force cast-in fixing bolt, concrete cushion, the basis that soft backing plate and concrete foundation central tube are formed, top, concrete foundation base plate middle part is provided with the concrete foundation central tube, semi girder is protruding by the concrete foundation central tube, girder two ends, edge are connected in semi girder, form the groined type structure, the workload of foundation dredging and backfill has been reduced on this extended pattern basis, but shortcoming is the workload of infrastructure mainly is to finish at the scene, and quality of concrete and construction period are influenced greatly by weather conditions and geological conditions.
Patent document 3: number of patent application is that the patent application " Partiallyprefabricated modular foundation system " of WO2008/036934 discloses the basis that a kind of part is used the wind power generating set of prefabricated units, pedestal and substrate and a plurality of prefabricated semi girder link into an integrated entity by reinforcing bar and i iron, pedestal and substrate bear vertical load Fz, horizontal loading Fr, semi girder and substrate bear overturning moment Mr.This extended pattern basis is prefabricated units and the combining of cast in situs, help accelerating the construction speed on basis, ensure the quality of products and reducing the construction costs, but the structure that the disclosed wind-powered electricity generation machine of this patent document is basic and the wind-powered electricity generation machine basis of patent document 1 is final is similar, the same problem that exists is: its place in the geological conditions difference is easy to topple, the base plate cast on-site, if accomplish very big size, its manufacturing cost, cost of transportation, installation cost are all quite huge.
The utility model content
The technical problems to be solved in the utility model is: a kind of site operation of being convenient to is provided, reduce building costs, the basis of safe and reliable wind power generating set, and requirement more can be applicable to zone such as the beach or the shallow sea of geological conditions difference, the basis that more can prevent the high-power wind-driven generator group that the wind-powered electricity generation unit topples.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of basis of wind power generating set has cushion cap, semi girder, semi girder bolster, anchor pole or anchor cable, anchoring body and foundation; At least three semi girders that bear the main overturning moment of wind power generating set be radially distributed in the cushion cap that bears the main vertical load of wind power generating set around; The semi girder bolster is below the semi girder and be arranged between the outer end and cushion cap of semi girder; The upper end of anchor pole or anchor cable is connected in the outer end of semi girder, and the lower end of anchor pole or anchor cable is connected in to be imbedded ground or cast on the anchoring body in water; Support is the basis that links to each other of full wafer or only needs basis corresponding to the piecemeal of cushion cap position and semi girder bolster position at cushion cap and described foundation below the semi girder bolster.
The concrete a kind of easy construction and the type of attachment of reliable cushion cap of unitary construction and semi girder are: described cushion cap adopts the integral cast-in-situ reinforced concrete structure, cloth fits over the reinforcing bar or the steel construction piece that bar frame in the cushion cap and semi girder the inner stretch out and welds together, and cushion cap becomes as a whole with many semi girders behind the monobloc cast.
For the influence of the weather that reduces cast-in-site and geologic(al) factor to mass of foundation, reduce installation cost: described semi girder is prefabricated reinforced concrete beam or steel concrete composite beam or steel---concrete combination beam, has the structure that can be connected with anchor pole or anchor cable in the outer end of semi girder.
Specifically as required: the described semi girder bolster that is positioned at single semi girder below is one or more.
For further improving the stability on basis: the below, nearly outer end of described semi girder also has the semi girder bolster.
In order to make basic anchoring reliable: described anchoring body is the tension type anchoring body.
In order to make the foundation bearing capacity that carries wind-powered electricity generation machine basis stronger: also have compressive pile or the resistance to compression open caisson of top in the described foundation to cushion cap and/or semi girder bolster.Wherein the resistance to compression open caisson more is applicable to apoplexy motor basis, waters.
Concrete: described anchor pole or anchor cable upper end with semi girder outer end type of attachment are: have the hole of perforation at the place, outer end of semi girder, the upper end of anchor pole or anchor cable is passed this hole and is pind down the outer end of semi girder.Described anchor pole or anchor cable upper end with another type of attachment of semi girder outer end are: anchor ring directly is welded on the bar frame or steel work of semi girder outer end, anchor pole or anchor cable pass the anchor ring hole and pin down the outer end of semi girder.Behind concreting, anchor pole or anchor cable and semi girder constitute one.
On appearance and size, in order to make the wind-powered electricity generation unit that is installed on the basis can have enough stability, the maximum gauge that the outermost end of this wind-powered electricity generation unit basis semi girder forms on circumference is 0.5～1: 1 with the ratio of the height of the perpendicular tower of described wind power generating set.
The beneficial effects of the utility model are, the basis of wind power generating set of the present utility model because part except that cushion cap can batch production production, facilitates site operation like this, reduce building costs, more can be applicable to zone such as the beach or the shallow sea of geological conditions difference; The radial cushion cap structure of semi girder all around that is arranged at, can be under the situation that consumes less relatively constructional materials, it is bigger that the basis is done, use the semi girder bolster in addition and draw the fixed form of anchoring, make the basis of wind power generating set more safe and reliable, same zone such as the beach or the shallow sea that further more can be applicable to the geological conditions difference can prevent that more the wind-powered electricity generation unit from toppling.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a land foundation structure schematic diagram of the present utility model.
Fig. 2 is a foundation structure schematic diagram waterborne of the present utility model.
Fig. 3 is the axonometric drawing of the utility model agent structure.
Fig. 4 is the axonometric drawing of the utility model semi girder.
Fig. 5 is for having the semi girder that connects anchor pole or anchor cable hole on the center line.
Fig. 6 is the semi girder that is welded with anchor ring.
Fig. 7 installs the schematic diagram of normal bolting for the semi girder outer end.
Fig. 8 installs the schematic diagram of inclination anchor pole for the semi girder outer end.
Among the figure: 1. cushion cap, 2. semi girder, 3. semi girder bolster, 4. anchor pole or anchor cable, 5. anchoring body, 6. foundation, 7. wind power generating set, 8. compressive pile, 9. resistance to compression open caisson, 2-1. fixed cross beam, 2-1-1. anchor pole or anchor cable hole, 2-2. anchor ring.
The specific embodiment
With preferred embodiment the utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
To shown in Figure 8, a kind of basis of wind power generating set has cushion cap 1, semi girder 2, semi girder bolster 3, anchor pole or anchor cable 4, anchoring body 5 and foundation 6 as Fig. 1; The six roots of sensation semi girder 2 that bears wind power generating set 7 main overturning moments be radially distributed in the cushion cap 1 that bears wind power generating set 7 main vertical loads around; Semi girder bolster 3 is below the semi girder 2 and be arranged between the outer end and cushion cap 1 of semi girder 2; The upper end of anchor pole or anchor cable 4 is connected in the outer end of semi girder 2, and the lower end of anchor pole or anchor cable 4 is connected in to be imbedded ground or cast on the anchoring body 5 in water; The basis that the described foundation 6 of support below cushion cap 1 and semi girder bolster 3 links to each other for full wafer or only need basis corresponding to the piecemeal of cushion cap 1 position and semi girder bolster 3 positions.
Cushion cap 1 adopts the integral cast-in-situ reinforced concrete structure, and cloth fits over the reinforcing bar or the steel construction piece that bar frame in the cushion cap and semi girder 2 the inners stretch out and welds together, and cushion cap 1 is as a whole with 2 one-tenth of six roots of sensation semi girders behind the monobloc cast.
The semi girder bolster 3 that is positioned at single semi girder 2 belows only is one setting in the accompanying drawing for one or more.
The below, nearly outer end of semi girder 2 also has semi girder bolster 3, and this semi girder bolster 3 is by fixed cross beam 2-1 double as in the accompanying drawing 3.
Anchoring body 5 is the tension type anchoring body.
Also have compressive pile 8 (as shown in Figure 1) or the resistance to compression open caisson 9 (as shown in Figure 2) of top in the foundation 6 to cushion cap 1 and/or semi girder bolster 3.
Anchor pole or anchor cable 4 upper ends and semi girder 2 outer end types of attachment are: have the anchor pole or the anchor cable hole 2-1-1 of perforation at the place, outer end of semi girder 2, the upper end of anchor pole or anchor cable 4 is passed this hole and is pind down the outer end of semi girder 2.
Anchor pole or anchor cable 4 upper ends and another type of attachment of semi girder 2 outer ends are: anchor pole or anchor cable 4 upper ends directly are welded on the bar frame or steel work of semi girder 2 outer ends, constitute one with semi girder 2 behind the concreting.
On appearance and size, the maximum gauge that the outermost end of semi girder 2 forms on circumference is 0.5～1: 1 with the ratio of the height of the perpendicular tower of wind power generating set 7.
Contrasting accompanying drawing below again is further detailed concrete structure of the present utility model.
Wind-powered electricity generation machine basis as accompanying drawing 1 to 3, cushion cap 1 is the stairstepping cylinder, and the end that external diameter is bigger is positioned at the below, and this part can be that cylinder also can be a multiedge cylinder, cushion cap 1 is the reinforced concrete structure of cast in situs, and most of structure is lower than ground line or horizontal plane; Be the periphery in the center of circle with cushion cap 1 center, the six roots of sensation of having arranged symmetrically semi girder 2, the bar frame that cushion cap 1 cloth is joined and semi girder 2 the inners stretch out reinforcing bar and i iron is integrally welded, cushion cap 1 is as a whole with 2 one-tenth of six roots of sensation semi girders behind the monobloc cast.
In the bottom of cushion cap 1 foundation 6 is arranged, as accompanying drawing 1, during land wind-powered electricity generation machine basis usually to being provided with vertical in its foundation 6 or becoming the vertical pressure resisting pile 8 of little angle with ground line, can adopt concrete pile or piling bar, special steel cap can be made in the stake top, also stretches out reinforcing bar so that be connected with cushion cap or semi girder bolster.As accompanying drawing 2, resistance to compression open caisson 9 is used on wind-powered electricity generation machine waterborne basis usually in foundation 6.
The prefabricated component of semi girder 2 in factory, producing, as accompanying drawing 4, land basis is adopted prestressed steel reinforced concrete beam or steel concrete composite beam usually, and steel---concrete combination beam is adopted on the basis usually on the water.In the bar frame that the cloth of semi girder 2 is joined, there are many reinforcing bars and/or i iron to stretch out from its inner face, steel---during concrete combination beam, also have steel work to stretch out from the inner face of semi girder, the bar frame that ferrous materials that these stretch out and cushion cap 1 cloth are joined connects into an integral body when adopting; Method for optimizing is that the cross section of semi girder 2 is up-small and down-big trapezoidal, near the sectional area of the cushion cap 1 one ends sectional area greater than the outer end.
Land basis is provided with the fixed cross beam 2-1 that is connected as a single entity with it usually in the outer end of semi girder 2, fixed cross beam 2-1 is positioned at the below of the outer end of semi girder 2, the bilateral symmetry of semi girder fixed cross beam 2-1 the even number of having arranged run through the anchor pole of anchor pole or anchor cable 4 or anchor cable hole 2-1-1 (at this moment, fixed cross beam 2-1 also has been equivalent to double as semi girder bolster 3), anchor pole or anchor cable hole 2-1-1 and semi girder 2 mounting planes vertical (as accompanying drawing 7) or suitably outward-dipping (as accompanying drawing 8) mutually; Wherein upright opening is used for the better and less occasion of construction plant area of geological conditions more, and the inclined hole that leans outward then is usually used in the occasion of subgrade.Semi girder 2 is when installation in position, and anchor pole or anchor cable 4 pass anchor pole or anchor cable hole 2-1-1 and anchoring body 5 and link.Semi girder 2 outer ends on basis waterborne normally are welded on a circular anchor ring 2-2 on the bar frame or steel work of semi girder 2, and anchor ring 2-2 is suitable for being connected with anchor cable, as accompanying drawing 2 and 6.
Semi girder bolster 3 is the reinforced concrete structure of prefabrication or cast in situs, be arranged on the below of semi girder 2 middle part mounting planes, play the effect of support cantilever beam 2, a semi girder can be provided with 1 for 2 times to a plurality of semi girder bolsters 3, and vertical pressure resisting pile 8 or resistance to compression open caisson 9 are arranged in the bottom of semi girder bolster 3.
Anchor pole or anchor cable 4 are made for having enough tensile strength metal material, and anchor pole is used on land basis usually, are the end machining screw at anchor pole, and the other end directly or by twisted rope and anchoring body 5 links.Preferably under the situation, anchor pole can extend downwards perpendicular to ground line at geological conditions, and under the imperfect situation of geological conditions, anchor pole will outwards extend the below with certain angle of slope, the every anchoring body 5 that semi girder 2 has an anchor pole at least and is attached thereto.
Anchoring body 5 is the tension type anchoring body, but the method for land basis usage mining or boring forms anchor hole, anchoring body 5 gos deep into the stratum and is anchored in the ground, anchoring body can adopt the column type anchor pole, local expansion type anchor pole, continuous spheroid anchor pole and spiral anchor rod, anchoring body is connected with anchor pole, and 5 of anchoring bodys link to each other with an anchor pole.The common use anchor cable on basis waterborne adopts the form of permanent mooring anchor, and this mooring anchor can have various ways, and a kind of preferred version is to use negative-pressure sucking anchor (stake); Anchoring body 5 links to each other with anchor cable, and loads pretension to anchor cable.
Introduce implementation process of the present utility model below again.
The basis that is used for land wind power generating set that present embodiment is shown in Figure 1, at first squeeze into several vertical pressure resisting piles 8 at preposition, use jumbolter to hole in position, under manage slip casting, lay anchor pole, annotate oar, lay ground tackle, finish the construction of anchor pole and anchoring body 5 behind the tensioning fixation.Excavate the cushion cap basis then, on vertical pressure resisting pile 8, build or place semi girder bolster 3, semi girder 2 is placed on preposition, arm crown plate piece 3 is filled up in semi girder 2 times; Anchor pole is inserted through bolthole.Cloth is joined reinforcing bar in the cushion cap basis, reinforcing bar that semi girder 2 inner faces are reserved and i iron weld together with the bar frame that institute's cloth is joined, poured in place concrete, pass through the maintenance of appropriate time after, the anchor pole extension is installed parallels, the nut that is tightened (herein shown in Fig. 7 and 8).
Present embodiment two basis that is used for the above-water wind generator group as shown in Figure 2, at first construct resistance to compression open caisson 9 and anchoring body 5 at preposition, anchoring body 5 is permanent mooring anchor (as the form of the anchor on accompanying drawing 2 right sides) or negative-pressure sucking anchor (as the form of the anchor in accompanying drawing 2 left sides); On resistance to compression open caisson 9, build or place semi girder bolster 3, semi girder 2 is placed on preposition, arm crown plate piece 3 is filled up in semi girder 2 times; Cloth is joined the reinforcing bar of cushion cap 1 in resistance to compression open caisson 9, the bar frame that reinforcing bar that semi girder 2 inner faces are reserved and i iron and institute's cloth are joined welds together, poured in place concrete, and carry out maintenance, the pattern of this open caisson foundation can be that the suction type barrel base also can be the fixed basis of gravity.In suitable place permanent mooring anchor or negative-pressure sucking anchor (being anchoring body 5) are put into water, connect anchor cable on mooring anchor, anchor cable is passed in the ring of anchor ring 2-1, the tension anchor cable loads suitable pretension for it.
According to applicant's introduction, should be appreciated that specific embodiment described above only is used to explain the utility model, and be not used in qualification the utility model.Conspicuous variation of being extended out by spirit of the present utility model or change should be understood still to be among the protection domain of the present utility model.
Claims (10)
1. the basis of a wind power generating set is characterized in that: have cushion cap (1), semi girder (2), semi girder bolster (3), anchor pole or anchor cable (4), anchoring body (5) and foundation (6);
At least three semi girders (2) that bear the main overturning moment of wind power generating set (7) be radially distributed in the cushion cap (1) that bears the main vertical load of wind power generating set (7) around;
Semi girder bolster (3) is positioned at the below of semi girder (2) and is arranged between the outer end and cushion cap (1) of semi girder (2);
The upper end of anchor pole or anchor cable (4) is connected in the outer end of semi girder (2), and the lower end of anchor pole or anchor cable (4) is connected in to be imbedded ground or cast on the anchoring body (5) in water;
Support the described foundation (6) of cushion cap (1) and semi girder bolster (3) below for link to each other basic of full wafer or only need corresponding to the basis of the piecemeal of cushion cap (1) position and semi girder bolster (3) position.
2. the basis of a kind of wind power generating set according to claim 1, it is characterized in that: described cushion cap (1) adopts the integral cast-in-situ reinforced concrete structure, cloth fits over the reinforcing bar or the steel construction piece that bar frame in the cushion cap and semi girder (2) the inner stretch out and welds together, and cushion cap behind the monobloc cast (1) becomes as a whole with many semi girders (2).
3. the basis of a kind of wind power generating set according to claim 1 and 2, it is characterized in that: described semi girder (2) is prefabricated reinforced concrete beam or steel concrete composite beam or steel---concrete combination beam, has the structure that can be connected with anchor pole or anchor cable (4) in the outer end of semi girder (2).
4. the basis of a kind of wind power generating set according to claim 1 is characterized in that: the described semi girder bolster (3) that is positioned at single semi girder (2) below is one or more.
5. the basis of a kind of wind power generating set according to claim 1 is characterized in that: also have semi girder bolster (3) below the nearly outer end of described semi girder (2).
6. the basis of a kind of wind power generating set according to claim 1, it is characterized in that: described anchoring body (5) is the tension type anchoring body.
7. the basis of a kind of wind power generating set according to claim 1 is characterized in that: also have compressive pile (8) or the resistance to compression open caisson (9) of top to cushion cap (1) and/or semi girder bolster (3) in the described foundation (6).
8. the basis of a kind of wind power generating set according to claim 1, it is characterized in that: described anchor pole or anchor cable (4) upper end with semi girder (2) outer end type of attachment is: have the hole of perforation at the place, outer end of semi girder (2), the upper end of anchor pole or anchor cable (4) is passed this hole and is pind down the outer end of semi girder (2).
9. the basis of a kind of wind power generating set according to claim 1, it is characterized in that: described anchor pole or anchor cable (4) upper end with another type of attachment of semi girder (2) outer end is: anchor pole or anchor cable (4) upper end directly are welded on the bar frame or steel work of semi girder (2) outer end, constitute one with semi girder (2) behind the concreting.
10. the basis of a kind of wind power generating set according to claim 1, it is characterized in that: the ratio of the height of the perpendicular tower of maximum gauge that the outermost end of described semi girder (2) forms on circumference and described wind power generating set (7) is 0.5～1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020251726XU CN201785769U (en) | 2010-07-01 | 2010-07-01 | Foundation of wind power generating unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020251726XU CN201785769U (en) | 2010-07-01 | 2010-07-01 | Foundation of wind power generating unit |
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| CN201785769U true CN201785769U (en) | 2011-04-06 |
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| CN201020251726XU Expired - Fee Related CN201785769U (en) | 2010-07-01 | 2010-07-01 | Foundation of wind power generating unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664193A (en) * | 2021-01-12 | 2021-04-16 | 北京天地华泰矿业管理股份有限公司 | Coal mining method under high-voltage transmission line |
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2010
- 2010-07-01 CN CN201020251726XU patent/CN201785769U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664193A (en) * | 2021-01-12 | 2021-04-16 | 北京天地华泰矿业管理股份有限公司 | Coal mining method under high-voltage transmission line |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20120701 |