CN217782128U - Point type foundation structure and four-point type wind power generation tower comprising same - Google Patents
Point type foundation structure and four-point type wind power generation tower comprising same Download PDFInfo
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- CN217782128U CN217782128U CN202221774810.9U CN202221774810U CN217782128U CN 217782128 U CN217782128 U CN 217782128U CN 202221774810 U CN202221774810 U CN 202221774810U CN 217782128 U CN217782128 U CN 217782128U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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Abstract
The utility model discloses a point type foundation structure in the technical field of wind power generation towers, which comprises a foundation pile foundation, a leveling cushion layer, a positioning tool, a foundation cushion cap, a concrete pier and a main column steel pipe, wherein the bottom end of the leveling cushion layer is provided with the foundation pile foundation, the top end of the foundation pile foundation is fixed with the bottom end of the foundation cushion cap, and the positioning tool is arranged in a groove of the leveling cushion layer; the concrete column mound includes column base crab-bolt, basis conversion crab-bolt and goes up the anchor slab, column base crab-bolt one end is fixed in the location frock, the other end of column base crab-bolt runs through the bottom plate that basic cushion cap is fixed in anchor slab and king-post steel pipe, basis conversion crab-bolt one end is fixed in the location frock, the basis conversion crab-bolt other end runs through basic cushion cap and is fixed in the inside change-over dish of king-post steel pipe. The utility model also discloses a four point type wind power generation tower that contains point type foundation structure. The beneficial effects are as follows: high safety, low cost, small floor area and high adaptability.
Description
Technical Field
The utility model belongs to the technical field of wind power generation tower, in particular to point type foundation structure reaches four-point type wind power generation tower that contains this structure.
Background
With the increase of wind power generation projects in China, wind fields with better wind power resources are developed gradually, and in order to better utilize the wind power resources at higher positions, wind power generation towers gradually develop towards high towers. Theoretical research proves that when the height of the wind power generation tower exceeds 100 meters, the structural advantage of the combination form of the lattice tower and the tower barrel is obvious, the structural form can greatly save materials, solve the problems of high transportation cost and the like, and further save the construction cost.
At present, the supporting foundation structure of the wind power tower is in an independent foundation form, a direct 20-meter concrete bearing platform is arranged at the bottom, the used concrete amount is large, the concrete column exposed out of the ground at the upper part is a concrete column head with the diameter of 7 meters, the occupied cultivated land area is large, the diameter of 7 meters is 7 meters, and the total occupied land area is 3.5 × 3.14=38.58 square meters.
The patent name prestress framework type steel pipe wind power tower positioning tool and the inclination foundation structure system patent number CN202121584515.2 applied by Qingdao Hua Si Zhuang energy science and technology Limited company 2021 year 07 month 13 disclose the structure of the positioning tool, the prestress framework type steel pipe wind power tower positioning tool comprises a top fixing device, a bottom fixing device, a supporting device and a centripetal positioning device, wherein the top fixing device is installed at the top of the supporting device, the bottom fixing device is installed at the bottom of the supporting device, the included angle between the top fixing device and the horizontal plane is 9-11 degrees, and the lowest point of the top fixing device is provided with the centripetal positioning device. And an inclined foundation anchor bolt in the inclined foundation structure system is vertically fixed on a top fixing device of the prestressed framework type steel pipe wind power tower positioning tool through a flange at the bottom of the foundation framework. Has the advantages that: the prestress framework type steel pipe wind power tower positioning tool is used for machining and manufacturing an inclination angle in a factory, so that the foundation construction is facilitated, and a large amount of labor and mechanical equipment cost is saved. The company is further developed on the basis of the patents.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of occupying a large area, the utility model discloses decide to develop a point type foundation structure and contain the four-point type wind power generation tower of this structure.
A point-type foundation structure comprises a foundation pile foundation, a leveling cushion layer, a positioning tool, a foundation cushion cap, a concrete column pier and a main column steel pipe, wherein the foundation pile foundation is arranged at the bottom end of the leveling cushion layer, the foundation cushion cap is arranged at the top end of the leveling cushion layer, the top end of the foundation pile foundation is fixed with the bottom end of the foundation cushion cap, the leveling cushion layer is a concave groove, and the positioning tool is arranged in the concave groove of the leveling cushion layer; the concrete column pier comprises a column base anchor bolt, a foundation conversion anchor bolt and an upper anchor plate, the bottom end of the concrete column pier is fixed to a positioning tool, the top end of the concrete column pier penetrates through a foundation bearing platform to be connected with a main column steel pipe, one end of the column base anchor bolt is fixed to the positioning tool, the other end of the column base anchor bolt is fixed to a bottom plate of the upper anchor plate and the main column steel pipe, one end of the foundation conversion anchor bolt is fixed to the positioning tool, and the other end of the foundation conversion anchor bolt is fixed to a conversion disc inside the main column steel pipe.
Further, the positioning tool comprises a top fixing device, a bottom fixing device and a supporting device, the top fixing device is installed at the top of the supporting device, the bottom fixing device is installed at the bottom of the supporting device, an included angle between the top fixing device and the horizontal plane is 9-11 degrees, the bottom fixing device is parallel to the horizontal plane, and the lower ends of the tower column base anchor bolt and the foundation conversion anchor bolt are both vertically fixed to the top fixing device.
Furthermore, the inside reinforcing bar that is provided with of basic cushion cap, basic cushion cap outer wall is provided with peripheral reinforcing bar.
Furthermore, the part of the concrete column pier exposed out of the ground is a foundation column head, and a drainage bent pipe is arranged on the foundation column head.
A four-point wind power generation tower with a point type foundation structure comprises four point type foundation structures and a prestressed framework type steel pipe body, wherein the prestressed framework type steel pipe body comprises four main column steel pipes, a plurality of inclined rod steel pipes, a plurality of cross rod steel pipes and a tower cylinder; the concrete column piers, the foundation bearing platform and the foundation pile foundation are all buried underground, and the foundation column heads of the concrete column piers exposed out of the ground are connected with the bottom ends of the main column steel pipes.
The utility model discloses the beneficial effect who gains as follows:
1. the safety is high, the structural rigidity is large, the bearing capacity is strong, the resonance is avoided, the first-order natural vibration frequency of the supporting structure is higher than the rated rotation frequency (1P) of the unit, the first-order resonance between the structure and the unit is avoided, and meanwhile, the problem of integral vortex-induced vibration does not exist in the lower framework type structure;
2. the construction cost is reduced, the consumption of concrete and reinforcing steel bars of the point type foundation pile foundation and the bearing platform is far lower than that of the traditional tower barrel foundation, and the construction cost is low; the optimized tower has the advantages of small exposed ground area, low land renting cost, low steel consumption, low tower construction cost, small bearing platform type foundation size, easiness in dismantling and low cost, and the landform needs to be restored after the service life period;
3. the foundation occupied area is small, compared with the traditional fan foundation, the bottom of the structure adopts four small foundations, the single exposed area is less than 1.5 square meters, and the four actual occupied areas are only 6 square meters; the mechanical cultivation can be realized, the bottom of the wind power generation tower is overhead, the land secondary cultivation is convenient, the agricultural land utilization maximization is facilitated, and the non-grain policy of the cultivated land is satisfied;
4. the method is suitable for construction of flood discharge areas, riverways, ponds and mining subsidence areas, is suitable for application to general farmlands, does not affect agricultural mechanized farming, is suitable for road-crossing construction, meets vehicle passing requirements in the bottom space of the tower, is suitable for uneven ground surfaces such as mountainous regions and the like, is suitable for constructing high-wind towers with high legs and without leveling tops on independent foundations, is suitable for constructing high-wind towers with high shear in low-wind areas and high shear in high-wind areas, is suitable for hub heights of more than 140 meters, 160 meters, 170 meters, 180 meters and 200 meters, can be used for technical improvement projects, and can build new tower foundations by crossing original tower barrel foundations.
Drawings
FIG. 1 is a schematic view of the overall structure of a four-point wind power tower;
FIG. 2 is a schematic view of the structure of the dot-matrix base structure A in FIG. 1;
FIG. 3 is a top view of the cross-section taken along the direction C-C of FIG. 1;
FIG. 4 is a partial enlarged view of portion B of FIG. 3;
the reference numbers in the figures are:
the foundation comprises a main column steel pipe 1, a foundation conversion anchor bolt 2, a foundation column cap 3, a concrete column pier 4, a supporting steel bar 5, a peripheral steel bar 6, a foundation bearing platform 7, a leveling cushion layer 8, a foundation pile foundation 9, a conversion disc 10, a tower column base anchor bolt 11, an upper anchor plate 12, a ground 13, a top fixing device 14, an inclined rod steel pipe 15, a tower cylinder 16, a drainage bent pipe 17, a positioning tool 18 and a transverse rod steel pipe 19.
Detailed Description
Example 1
As shown in fig. 1 to 4, a point-type foundation structure includes a foundation pile foundation 9, a leveling cushion layer 8, a positioning tool 18, a foundation bearing platform 7, a concrete pier 4, and a main column steel pipe 1, wherein the foundation pile foundation 9 is arranged at the bottom end of the leveling cushion layer 8, the foundation bearing platform 7 is arranged at the top end of the leveling cushion layer 8, the top end of the foundation pile foundation 9 is fixed with the bottom end of the foundation bearing platform 7, the leveling cushion layer 8 is a concave groove, and the positioning tool 18 is arranged in the concave groove of the leveling cushion layer 8; the concrete column pier 4 comprises a tower column base anchor bolt 11, a foundation conversion anchor bolt 2 and an upper anchor plate 12, the bottom end of the concrete column pier 4 is fixed to a positioning tool 18, the top end of the concrete column pier 4 penetrates through a foundation bearing platform 7 to be connected with a main column steel pipe 1, one end of the tower column base anchor bolt 11 is fixed to the positioning tool 18, and the other end of the tower column base anchor bolt 11 is fixed to the upper anchor plate 12 and a bottom plate of the main column steel pipe 1; a conversion disk 10 is arranged inside the main column steel pipe 1, one end of a basic conversion anchor bolt 2 is fixed to a positioning tool 18, and the other end of the basic conversion anchor bolt 2 is fixed to the conversion disk 10 inside the main column steel pipe 1. And after the foundation bearing platform 7 and the concrete pier 4 are installed, concrete is poured.
The inside bracing steel bar 5 that is provided with of basic cushion cap 7, the 7 outer walls of basic cushion cap are provided with peripheral reinforcing bar 6. The part of the concrete column pier 4 exposed out of the ground is a foundation column cap 3, and a drainage elbow 17 is arranged on the foundation column cap 3.
The utility model provides a four point type wind power generation tower that contains point type foundation structure, includes four point type foundation structure, prestressing force framework formula steel pipe body includes four main column steel pipes 1, a plurality of down tube steel 15, a plurality of horizontal pole steel pipe 19, a tower section of thick bamboo 16, each main column steel pipe 1 bottom is provided with point type foundation structure respectively, be provided with down tube steel 15 and horizontal pole steel pipe 19 between the adjacent main column steel pipe 1, the top of four main column steel pipes 1 is provided with tower section of thick bamboo 16. The bottom of the point type foundation structure is a concrete foundation bearing platform with the length of 5 m by 5 m, the concrete foundation bearing platform is deeply buried at more than 2 m underground, force is transferred through concrete column piers with the length of 1.5 m by 1.5 m, and the foundation conversion anchor bolts 2 are 3 steel columns with the diameter of 1000 mm, so that the occupied cultivated area is reduced by 80%; effectively saving land.
Example 2
The included angle between the top fixing device and the horizontal plane is 11 degrees, the basic conversion anchor bolt 2 is a steel column with the diameter of 600 millimeters, and the number of the steel columns is 6. The rest was the same as in example 1.
Example 3
The included angle between the top fixing device and the horizontal plane is 10 degrees, the basic conversion anchor bolts 2 are steel columns with the diameter of 800 millimeters, and the number of the steel columns is 4. The rest was the same as in example 1.
Claims (5)
1. A point infrastructure, characterized by: the pile foundation leveling device comprises a foundation pile foundation, a leveling cushion layer, a positioning tool, a foundation bearing platform, a concrete column pier and a main column steel pipe, wherein the foundation pile foundation is arranged at the bottom end of the leveling cushion layer, the foundation bearing platform is arranged at the top end of the leveling cushion layer, the top end of the foundation pile foundation is fixed with the bottom end of the foundation bearing platform, the leveling cushion layer is a concave groove, and the positioning tool is arranged in the concave groove of the leveling cushion layer; concrete column mound includes column base crab-bolt, basis conversion crab-bolt and goes up the anchor slab, the bottom mounting in location frock of concrete column mound, the top of concrete column mound is run through basic cushion cap and is connected with the main column steel pipe, column base crab-bolt one end is fixed in the location frock, the other end of column base crab-bolt is fixed in the bottom plate of anchor slab and main column steel pipe, basis conversion crab-bolt one end is fixed in the location frock, the basis conversion crab-bolt other end is fixed in the inside change-over dish of main column steel pipe.
2. A point infrastructure according to claim 1, characterized in that: the positioning tool comprises a top fixing device, a bottom fixing device and a supporting device, wherein the top fixing device is installed at the top of the supporting device, the bottom fixing device is installed at the bottom of the supporting device, the included angle between the top fixing device and the horizontal plane is 9-11 degrees, the bottom fixing device is parallel to the horizontal plane, and the lower ends of the tower column foot anchor bolt and the lower end of the foundation transformation anchor bolt are vertically fixed on the top fixing device.
3. The point infrastructure according to claim 1, characterized in that: the inside support steel bar that is provided with of basic cushion cap, basic cushion cap outer wall is provided with peripheral reinforcing bar.
4. The point infrastructure according to claim 1, characterized in that: the part of the concrete column pier exposed out of the ground is a foundation column head, and a drainage bent pipe is arranged on the foundation column head.
5. A four-point wind power tower comprising a point foundation structure according to any one of claims 1-4, characterized in that: the steel pipe frame comprises four point type foundation structures and a prestress frame type steel pipe body, wherein the prestress frame type steel pipe body comprises four main column steel pipes, a plurality of inclined rod steel pipes, a plurality of transverse rod steel pipes and a tower barrel, the bottom ends of the main column steel pipes are respectively provided with the point type foundation structures, the inclined rod steel pipes and the transverse rod steel pipes are arranged between the adjacent main column steel pipes, and the tower barrel is arranged at the top ends of the four main column steel pipes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221774810.9U CN217782128U (en) | 2022-07-11 | 2022-07-11 | Point type foundation structure and four-point type wind power generation tower comprising same |
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| CN202221774810.9U CN217782128U (en) | 2022-07-11 | 2022-07-11 | Point type foundation structure and four-point type wind power generation tower comprising same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396192A (en) * | 2021-12-13 | 2022-04-26 | 中国能源建设集团安徽省电力设计院有限公司 | Plug-in concrete-filled steel tubular column foot for large-scale transmission tower and construction method thereof |
| CN116464221A (en) * | 2023-04-27 | 2023-07-21 | 青岛华斯壮能源科技有限公司 | Steel pipe concrete external prestress structure, wind power tower and installation method |
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2022
- 2022-07-11 CN CN202221774810.9U patent/CN217782128U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396192A (en) * | 2021-12-13 | 2022-04-26 | 中国能源建设集团安徽省电力设计院有限公司 | Plug-in concrete-filled steel tubular column foot for large-scale transmission tower and construction method thereof |
| CN114396192B (en) * | 2021-12-13 | 2024-03-15 | 中国能源建设集团安徽省电力设计院有限公司 | Inserted steel tube concrete column base for large power transmission tower and construction method thereof |
| CN116464221A (en) * | 2023-04-27 | 2023-07-21 | 青岛华斯壮能源科技有限公司 | Steel pipe concrete external prestress structure, wind power tower and installation method |
| CN116464221B (en) * | 2023-04-27 | 2024-07-30 | 青岛华斯壮能源科技有限公司 | Steel pipe concrete external prestress structure, wind power tower and installation method |
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