CN210766848U - Wind power foundation structure of multi-cylinder jacket - Google Patents
Wind power foundation structure of multi-cylinder jacket Download PDFInfo
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- CN210766848U CN210766848U CN201920992183.8U CN201920992183U CN210766848U CN 210766848 U CN210766848 U CN 210766848U CN 201920992183 U CN201920992183 U CN 201920992183U CN 210766848 U CN210766848 U CN 210766848U
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- wind power
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- bottom plate
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 86
- 239000010959 steel Substances 0.000 claims abstract description 86
- 238000003466 welding Methods 0.000 claims description 5
- 239000002689 soil Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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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
- Y02E10/72—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
- Y02E10/727—Offshore wind turbines
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Abstract
The utility model belongs to the technical field of foundation structures of ocean engineering, and discloses a multi-cylinder jacket wind power foundation structure, which comprises a plurality of steel cylinders which are arranged independently, wherein each steel cylinder is of a hollow cylindrical structure and is provided with a grouting passage port valve; a hollow connecting piece is connected between two adjacent steel cylinders, and the hollow connecting piece and the steel cylinders are welded into an integral steel structure and are mutually communicated; the bottom of the steel cylinder and the bottom of the hollow connecting piece are connected with an anti-sliding bottom plate together, and the inside of the anti-sliding bottom plate can be grouted; the tops of the steel cylinders are connected with a jacket structure together, and the bottom of the jacket structure penetrates through the steel cylinders and is connected to the anti-slip bottom plate. The utility model discloses have floating basis, gravity type basis and jacket foundation's advantage simultaneously, bear the weight of the dynamic height, the installation transportation is convenient, application scope is wide, cost greatly reduced.
Description
Technical Field
The utility model belongs to the technical field of ocean engineering's foundation structure, specific theory relates to a many wind-powered electricity generation foundation structure.
Background
At present, in the field of offshore wind power, the form of a wind turbine foundation mainly comprises a gravity type foundation, a jacket foundation, a cylindrical foundation, a pile foundation, a floating foundation and the like.
The gravity type foundation integrally resists external load by means of the dead weight of the structure and the weight of the filler and the ballast on the gravity type foundation, the structural stability is maintained, the construction principle is simple, the cost of the filler and the ballast material is low, and the construction cost is low for a shallow foundation; however, the self weight and the geometric dimension of the foundation are large, the foundation occupies a wider range of the seabed, and the requirement on geological conditions is high, so that the applicable water depth range of the gravity foundation is limited, and the cost is high.
The jacket foundation has good integrity, light weight, high structural strength, strong bearing capacity, small wave flow effect and simple and convenient construction; however, the field operation time is long, and the manufacturing cost exponentially increases along with the increase of the water depth, so the applicable water depth range of the jacket foundation is limited.
The floating type foundation is simple to transport, high in floating stability, suitable for deeper water areas and easy to dismantle. However, as the water depth increases, the wind wave flow load becomes larger, which easily causes resonance between the floating foundation and the upper structure, resulting in fatigue of the foundation structure, and the stability of the structure is difficult to ensure after the structure is in place.
SUMMERY OF THE UTILITY MODEL
The utility model discloses focusing on solving above-mentioned technical problem, combining that floating basis transportation is convenient, the superficial stability is high, gravity type structure is with low costs, the bearing capacity is strong to and characteristics that jacket basis wholeness is strong, structural strength is high, provide a neotype many tubes jacket wind-powered electricity generation foundation structure, have the advantage on floating basis, gravity type basis and jacket basis simultaneously, bear the weight of the dynamic height, the installation transportation is convenient, application scope is wide, cost greatly reduced.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a multi-cylinder jacket wind power foundation structure comprises a plurality of identical steel cylinders, wherein the plurality of steel cylinders are arranged in a regular polygon manner on a horizontal plane according to a central point connecting line and are arranged independently, each steel cylinder is of a hollow cylindrical structure and is provided with a grouting passage port valve; a hollow connecting piece is connected between two adjacent steel cylinders, the hollow connecting piece and the steel cylinders are welded into an integral steel structure, and the hollow connecting piece and the steel cylinders are communicated with each other; the bottoms of the steel cylinders and the bottoms of the hollow connecting pieces are connected with an anti-sliding bottom plate together, and grouting can be performed inside the anti-sliding bottom plate; and the tops of the steel cylinders are jointly connected with a jacket structure, and the bottoms of the jacket structures penetrate through the steel cylinders and are connected with the anti-sliding bottom plate.
Further, the radius of the steel cylinder is 20-30m, and the height of the steel cylinder is 15-20 m.
Furthermore, the clear distance between two adjacent steel cylinders is 1-3 times of the outer diameter of the steel cylinder.
Further, the hollow connecting piece is a hollow structure formed by welding steel plates, the width of the hollow connecting piece is 0.5-0.8 times of the outer diameter of the steel cylinder, and the height of the hollow connecting piece is 1/10-1/8 of the height of the steel cylinder.
Furthermore, the anti-slip bottom plate is made of steel and comprises a base and an apron plate at the lower part of the base, the base is of a hollow structure, and the apron plate is inserted into a soil body after being installed in place and jointly bears upper load.
Furthermore, the base is provided with a grouting passage port valve or the base is communicated with the steel cylinder through the grouting passage port valve.
Further, the apron plate has a height of 0.2 to 0.3 times the height of the steel cylinder, and divides the space below the base into 5 to 15 divisions in the longitudinal and transverse directions.
Furthermore, the jacket structure comprises a plurality of vertical pipes, and a plurality of support rods are connected among the plurality of vertical pipes to form a truss structure; the number of the vertical pipes is consistent with that of the steel cylinders, and the bottom center points of the plurality of vertical pipes are connected to form a regular polygon which inclines to the center of the foundation structure from bottom to top at the same angle; each riser is inserted into each steel cylinder in a one-to-one correspondence mode, and the bottom end of each riser is welded to the anti-sliding bottom plate.
Furthermore, the outer diameter of the upright post in the jacket structure is 0.3-0.7m, the height is 40-60m, and the wall thickness is 0.01-0.05 m; the inclination angle of the upright post is 80-85 degrees; the outer diameter of the support rod is 0.1-0.5m, and the thickness of the support rod is 0.01-0.05 m.
The utility model has the advantages that:
the utility model discloses have floating basis, gravity type basis and jacket foundation's advantage concurrently, stress distribution is reasonable, light in weight, can prefabricate the installation, be applicable to deeper waters. In the floating transportation process, the structure has the advantage of floating foundation air floatation stability; the gravity foundation is formed by grouting in the sinking process, and the cylindrical foundation and the jacket structure after grouting are integrated, so that the structural stability is enhanced; the bearing capacity and the pulling resistance are improved after the groove of the anti-sliding bottom plate sinks in the foundation structure.
Drawings
Fig. 1 is a schematic perspective view of a multi-jacket wind power infrastructure provided by the present invention;
fig. 2 is a front view of a multi-jacket wind power infrastructure provided by the present invention;
fig. 3 is a cross-sectional view of a multi-jacket wind power infrastructure provided by the present invention;
fig. 4 is a top view of a multi-jacket wind power infrastructure provided by the present invention;
fig. 5 is a schematic structural view of a hollow connecting piece of a multi-tube jacket wind power infrastructure provided by the present invention;
fig. 6 is a schematic structural view of an anti-sliding bottom plate of the multi-jacket wind power infrastructure provided by the present invention;
in the above figures: 1. a steel cylinder; 2. a hollow connector; 3. an anti-slip base plate; 4. a jacket structure; 5. a grouting passage port valve.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
as shown in fig. 1 to 3, the present embodiment discloses a multi-cylinder jacket wind power infrastructure, which includes three identical steel cylinders 1, three identical hollow connectors 2, an anti-sliding bottom plate 3, a jacket structure 4, and a grouting passage port valve 5.
The steel cylinder 1 is a steel cylindrical hollow structure with the upper end and the lower end both closed, and the upper part of the steel cylinder is provided with a grouting passage port valve 5. The radius and the height of the steel cylinder 1 can be set to be 15m, the thickness of the cylinder wall is 0.025m, and the specific size can be adjusted according to the actual situation. The steel cylinder 1 is in a hollow state before sinking, and the self weight is increased through grouting in the sinking process, so that the foundation structure realizes the conversion from a floating foundation to a gravity type foundation. Generally, the radius of the steel cylinder 1 is selected within the range of 20-30m, and the height is selected within the range of 15-20 m.
Three same steel cylinder 1 can form a regular triangle and arrange according to its central point line on the horizontal plane, and three steel cylinder 1 sets up independently each other, and wherein the clear distance between two adjacent steel cylinder 1 can be set up to 15 m. Generally, the clear distance between two adjacent steel cylinders 1 is 1-3 times of the outer diameter of the steel cylinder 1.
The hollow connecting piece 2 is connected between the two adjacent steel cylinders 1, the hollow connecting piece 2 and the steel cylinders 1 are manufactured into an integral steel structure, and the hollow connecting piece 2 is communicated with the steel cylinders 1. The hollow connecting piece 2 is a hollow structure formed by welding steel plates, and the bottom of the hollow connecting piece is connected with the anti-sliding bottom plate 3. The width B of the hollow connecting piece 2 (namely the direction vertical to the central connecting line of the two steel cylinders 1) is 0.5-0.8 times of the outer diameter and is selected within the range of 20-25 m; the height is 1/10-1/8 of the height of the steel cylinder 1, and the range is 1.5-2.0 m; the above dimensions can be adjusted according to actual conditions.
The anti-sliding bottom plate 3 is arranged at the bottoms of the three steel cylinders 1 and the three hollow connecting pieces 2, and the anti-sliding bottom plate 3 is of a steel structure and is welded with the steel cylinders 1 and the hollow connecting pieces 2. The anti-slip bottom plate 3 is preferably a two-part steel structure comprising a base and a skirt below the base. The upper base is a closed hollow structure, the height of the upper base is 3m, the thickness of the upper base is 0.025mm, and the upper base can be adjusted according to the self weight of the structure. The base of the anti-sliding bottom plate 3 can be directly provided with a grouting passage port valve 5 and can also be communicated with the steel cylinder 1 through the grouting passage port valve 5, so that grouting construction is facilitated. The height of the skirt board at the lower part is 0.2-0.3 times of the height of the steel cylinder, the thickness of the skirt board is 0.01m, and the skirt boards divide the space at the lower part of the base into 5-15 subareas respectively along the longitudinal direction and the transverse direction. The apron board of the anti-sliding bottom plate 3 is inserted into the soil body after the foundation structure is installed in place, and the upper load is borne together, so that the bearing capacity and the pulling resistance of the foundation structure are improved.
The jacket structure 4 is a truss structure formed by connecting three same upright posts and a plurality of support rods, and the height of the jacket structure 4 is 45-50 m. The quantity of the upright posts is the same as that of the steel cylinder 1, the outer diameter of the upright post steel pipe can be 0.5m, the thickness is 5mm, and the connecting line of the central points of the bottom ends forms an equilateral triangle. The three stand columns are respectively inserted into the three steel cylinders 1 in a one-to-one correspondence manner, the bottoms of the three stand columns are welded with the anti-sliding bottom plate 3, the three stand columns are inclined from bottom to top at the same angle to the central axis of the foundation structure, and the apparent inclination angle is 80-85 degrees. The bracing piece external diameter can be taken to 0.3m, and thickness can be taken to 3mm, and external diameter and thickness can be adjusted according to actual engineering needs. The support rod is connected among the three upright posts to form a truss type steel structure. The jacket structure 4 helps to transfer the upper load to the anti-slip bottom plate 3, thereby spreading the external load. In addition, jacket structure 3 wholeness is good, receives the stormy waves influence less, and structural strength is big. Generally, the outer diameter of the upright post of the jacket structure 4 is 0.3-0.7m, the thickness is 0.01-0.05m, the height is 40-60m, and the inclination angle is 80-85 degrees; the outer diameter of the support rod is 0.1-0.5m, and the thickness of the support rod is 0.01-0.05 m.
The construction method of the multi-cylinder jacket wind power foundation structure comprises the following steps:
(1) prefabricating steel cylinders 1 on land, and welding the three steel cylinders 1 with a hollow connecting piece 2 and an anti-sliding bottom plate 3;
(2) installing a jacket structure 4 on the upper parts of the three steel cylinders 1, inserting upright rods of the jacket structure 4 into the steel cylinders 1, and welding the bottoms of the upright rods with an anti-sliding bottom plate 3; assembling the multi-cylinder jacket wind power foundation structure;
(3) hoisting the multi-cylinder jacket wind power foundation structure into water, closing a grouting passage port valve 5, checking the air tightness, and adjusting the draught of the steel cylinder 1 according to towing requirements;
(4) carrying out floating towing on the multi-cylinder jacket wind power foundation structure;
(5) after the multi-cylinder jacket wind power foundation is transported to a designated sea area in a floating mode, self-weight sinking is firstly carried out, grouting is carried out on the insides of the steel cylinder 1, the hollow connecting piece 2 and the anti-sliding bottom plate 3 through a grouting channel valve 5 to assist sinking, and the sinking is carried out to a designated position;
(6) when the sinking is finished, loading objects such as stones and the like are placed in the middle of the top surface of the anti-sliding bottom plate 3, so that the structural stability is enhanced.
Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various changes without departing from the spirit and the scope of the invention as claimed.
Claims (9)
1. A multi-cylinder jacket wind power foundation structure comprises a plurality of identical steel cylinders, wherein the plurality of steel cylinders can form a regular polygon arrangement on a horizontal plane according to a central point connecting line and are arranged independently; a hollow connecting piece is connected between two adjacent steel cylinders, the hollow connecting piece and the steel cylinders are welded into an integral steel structure, and the hollow connecting piece and the steel cylinders are communicated with each other; the bottoms of the steel cylinders and the bottoms of the hollow connecting pieces are connected with an anti-sliding bottom plate together, and grouting can be performed inside the anti-sliding bottom plate; and the tops of the steel cylinders are jointly connected with a jacket structure, and the bottoms of the jacket structures penetrate through the steel cylinders and are connected with the anti-sliding bottom plate.
2. The multi-tube jacket wind power infrastructure according to claim 1, wherein the steel tubes have a radius of 20-30m and a height of 15-20 m.
3. The multi-cylinder jacket wind power infrastructure according to claim 2, wherein the clear distance between two adjacent steel cylinders is 1-3 times the outer diameter of the steel cylinders.
4. The wind power infrastructure of multi-tube jacket, according to claim 1, wherein said hollow connecting member is a hollow structure formed by welding steel plates, the width of said hollow connecting member is 0.5-0.8 times of the outer diameter of said steel tube, and the height of said hollow connecting member is 1/10-1/8 of the height of said steel tube.
5. The wind power foundation structure of claim 1, wherein the anti-slip bottom plate is made of steel and comprises a base and an apron plate at the lower part of the base, the base is of a hollow structure, and the apron plate is inserted into soil after being installed in place and jointly bears an upper load.
6. The multi-cylinder jacket wind power foundation structure according to claim 5, wherein the base is provided with a grouting passage port valve or is communicated with the steel cylinder through the grouting passage port valve.
7. The wind power infrastructure of claim 5, wherein said skirt has a height of 0.2-0.3 times the height of said steel can, said skirt dividing said base lower space longitudinally and transversely into 5-15 sectors.
8. The multi-tube jacket wind power infrastructure according to claim 1, wherein the jacket structure comprises a plurality of vertical tubes, and a plurality of support rods are connected between the plurality of vertical tubes to form a truss structure; the number of the vertical pipes is consistent with that of the steel cylinders, and the bottom center points of the plurality of vertical pipes are connected to form a regular polygon which inclines to the center of the foundation structure from bottom to top at the same angle; each riser is inserted into each steel cylinder in a one-to-one correspondence mode, and the bottom end of each riser is welded to the anti-sliding bottom plate.
9. The multi-can jacket wind power infrastructure according to claim 8, wherein the risers in the jacket structure have an outer diameter of 0.3-0.7m, a height of 40-60m, and a wall thickness of 0.01-0.05 m; the inclination angle of the vertical pipe is 80-85 degrees; the outer diameter of the support rod is 0.1-0.5m, and the thickness of the support rod is 0.01-0.05 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920992183.8U CN210766848U (en) | 2019-06-28 | 2019-06-28 | Wind power foundation structure of multi-cylinder jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920992183.8U CN210766848U (en) | 2019-06-28 | 2019-06-28 | Wind power foundation structure of multi-cylinder jacket |
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| Publication Number | Publication Date |
|---|---|
| CN210766848U true CN210766848U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920992183.8U Expired - Fee Related CN210766848U (en) | 2019-06-28 | 2019-06-28 | Wind power foundation structure of multi-cylinder jacket |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397065A (en) * | 2019-06-28 | 2019-11-01 | 天津大学 | More jacket wind power foundation structures of one kind and its construction method |
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2019
- 2019-06-28 CN CN201920992183.8U patent/CN210766848U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397065A (en) * | 2019-06-28 | 2019-11-01 | 天津大学 | More jacket wind power foundation structures of one kind and its construction method |
| CN110397065B (en) * | 2019-06-28 | 2024-04-09 | 天津大学 | Multi-barrel jacket wind power foundation structure and construction method thereof |
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Granted publication date: 20200616 |