CN219471002U - Offshore wind turbine single pile foundation externally provided with truss reinforcing structure - Google Patents
Offshore wind turbine single pile foundation externally provided with truss reinforcing structure Download PDFInfo
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- CN219471002U CN219471002U CN202223320124.7U CN202223320124U CN219471002U CN 219471002 U CN219471002 U CN 219471002U CN 202223320124 U CN202223320124 U CN 202223320124U CN 219471002 U CN219471002 U CN 219471002U
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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 discloses an offshore wind turbine single pile foundation with an externally-added truss reinforcing structure, which comprises a steel pipe pile and a truss reinforcing structure, wherein the truss reinforcing structure comprises an upper connecting ring, a lower connecting ring and at least three connecting blocks, the upper connecting ring and the lower connecting ring are arranged on the steel pipe pile, an upper connecting rod is arranged between the connecting blocks and the upper connecting ring, a lower connecting rod is arranged between the connecting blocks and the lower connecting ring, the bottom surface of the lower connecting ring is level with the bottom surface of the connecting blocks, and the bottom surface of the connecting ring is connected with auxiliary piles embedded into a seabed. The utility model can improve the bearing capacity and stability of the steel pipe pile, so that the steel pipe pile is not easy to topple.
Description
Technical Field
The utility model belongs to the technical field of offshore wind power generation, and particularly relates to an offshore wind turbine single pile foundation with an externally-added truss reinforcing structure.
Background
Wind power generation is currently one of the fastest growing renewable energy sources with the most commercialized and scaled development conditions in the world, and has received wide attention from the last 80 th century worldwide. The offshore wind power has the advantages of rich wind energy resources, large developable potential and the like, and since the first offshore wind power plant in the world is built in denmark in 1991, the offshore wind power plant gradually becomes the development focus of wind power generation. The coastline of China is long, and has rich offshore wind energy resources, and the construction of offshore wind power drives the ocean economy of China to be recovered comprehensively, and particularly the development and utilization of ocean energy resources are likely to become a blue path for realizing the double-carbon target.
The wind turbine foundation is used as a supporting system of the wind turbine generator, is responsible for transmitting wind turbine loads transmitted by the foundation transition connection section, waves, wind and ocean current loads received during the service period of the wind turbine foundation, berthing force, impact force and the like to foundation soil, and has the cost accounting for about 25% of the investment of the whole offshore wind farm, and is very important in offshore wind power construction. The construction of the offshore wind turbine foundation is affected by factors such as marine meteorological conditions, hydrologic conditions, submarine geological environments and the like, relates to multiple fields and professions, and is one of the difficulties in the construction of offshore wind farms.
Chinese utility model 2021.09.16 discloses a marine wind power reinforcing apparatus, publication No. CN 216156665U, wherein the reinforcing apparatus comprises a pile foundation and a conduit, a part of the pile foundation being buried in the seabed. The pipe is inserted into the seabed from the inside of the pile foundation through the peripheral wall of the pile foundation, the part of the pipe located in the pile foundation is provided with a grouting opening, the part of the pipe inserted into the seabed is provided with a grouting opening, and the pipe is used for injecting seabed reinforcing materials into the seabed to reinforce the seabed near the pile foundation.
In the scheme, the guide pipe is required to be inserted into the seabed when the pile foundation is buried into the seabed, so that the construction difficulty is high, and the construction efficiency is low.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art, and provides the offshore wind turbine single pile foundation with the truss reinforcing structure, which can improve the bearing capacity and stability of a steel pipe pile, so that the steel pipe pile is not easy to topple, the construction difficulty is reduced, and the construction efficiency is improved.
In order to solve the technical problems, the utility model adopts the following technical scheme:
an offshore wind turbine single pile foundation with an externally-added truss reinforcing structure, which is characterized in that: comprises a steel pipe pile and a truss reinforcing structure, wherein the truss reinforcing structure comprises an upper connecting ring, a lower connecting ring and at least three connecting blocks, the upper connecting ring and the lower connecting ring are arranged on the steel pipe pile, an upper connecting rod is arranged between the connecting block and the upper connecting ring, a lower connecting rod is arranged between the connecting block and the lower connecting ring, the bottom surface of the lower connecting ring is level with the bottom surface of the connecting block, and the bottom surface of the connecting block is connected with an auxiliary pile buried into the seabed. Through the upper connecting ring and the lower connecting ring, the connection of the steel pipe pile and the truss reinforcing structure can be facilitated, and the arrangement of the connecting blocks, the upper connecting rods and the lower connecting rods enables the truss reinforcing structure to be a table-shaped supporting frame, the support to the steel-pipe pile is improved, simultaneously auxiliary pile can insert the seabed, can improve the bearing capacity of steel-pipe pile, improves the steadiness of being connected with the seabed for the difficult emergence of steel-pipe pile is overturned. Through setting that go up the go-between and connecting block flushes, can make truss reinforcement structure's bottom laminate mutually with the seabed, make truss reinforcement structure and steel-pipe pile form triangle stable structure simultaneously, improve supporting effect and holistic steadiness. The truss reinforcing structure is a prefabricated member, the connection of structures such as an upper connecting ring, a lower connecting ring and a connecting block is completed on the shore, and then the upper connecting ring and the lower connecting ring are installed at the appointed position of the steel pipe pile and perform pile sinking operation together with the steel pipe pile. The connecting block is of a block structure, so that the interaction area of the truss reinforcing structure and the seabed can be effectively increased compared with a tubular structure, the overall stability of the structure is improved, and the horizontal displacement of the fan is reduced.
Further, a fixing rod is arranged between the adjacent connecting blocks to realize connection between the adjacent connecting blocks. The adjacent connecting block is connected to the dead lever, improves truss reinforced structure's overall stability, improves the supporting effect to the steel-pipe pile.
Further, a reinforcing rod is arranged between the adjacent upper connecting rods. The connecting rod is connected to the stiffener, improves truss bulk strength.
Further, the number of the reinforcing rods arranged between the adjacent upper connecting rods is two, and the two reinforcing rods are arranged in a crossing manner and fixedly connected at the crossing position. Two reinforcing rods are arranged in a crossing mode, so that the overall connection strength can be improved, and the supporting and reinforcing effects are improved.
Further, the number of the connection blocks is four. Through the connecting block of four settings, improve truss reinforcement structure and seabed's area of contact for whole difficult emergence is overturned. Meanwhile, compared with the triangular structure of three connecting blocks, the area enclosed by the lower connecting rods can be increased under the condition that the lengths of the lower connecting rods are the same, so that the overall stability is improved. The setting of five and above connecting blocks, the steadiness promotes less, and the consumption of steel greatly increased simultaneously.
Further, the auxiliary pile is of a solid cylindrical structure, and the pile bottom is in an inverted conical shape. The strength of the auxiliary pile can be improved through the solid cylindrical structure, and the auxiliary pile can be driven into the seabed more easily through the inverted conical design of the bottom.
Further, the surface of the truss reinforcing structure is provided with a seawater corrosion resistant coating. Through the setting of seawater corrosion resistant cladding material for truss reinforced structure is difficult for corroding, prolongs its life.
Further, the fixed rod, the upper connecting rod, the lower connecting rod and the auxiliary pile are connected in the connecting block. After the fixing rod, the upper connecting rod, the lower connecting rod and the auxiliary pile are connected, the connecting block is arranged outside the connecting part of the fixing rod, the upper connecting rod, the lower connecting rod and the auxiliary pile, so that the connecting part can be protected, and the connecting strength of the connecting block is improved. The connecting block can be formed by concrete casting.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
1. as a single-pile foundation truss reinforcing structure of the offshore wind turbine, the structure can be welded and assembled on the shore, and the structure has the advantages of simple structure, convenience in installation, safety and reliability.
2. The truss reinforcing structure is light in size and small in steel consumption, and forms a triangular stable structure with the steel pipe piles, so that the bending resistance of the single pile foundation is improved.
3. The concrete connecting block effectively increases the contact area between the foundation and the seabed, and improves the bearing capacity of the single pile foundation.
4. The auxiliary pile has the effects of strengthening and stabilizing the single pile foundation, and after the unit is put into operation, the interaction area of the structure and the seabed soil mass is increased, the overall stability of the structure is increased, the horizontal displacement of the fan is reduced, and the safe and stable operation of the unit is facilitated.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a single pile foundation of an offshore wind turbine with an externally-added truss reinforcement structure;
FIG. 2 is a schematic structural view of a steel pipe pile and truss reinforcement structure connection according to the present utility model;
fig. 3 is a schematic structural view of the truss reinforcement structure of the present utility model.
In the drawings, a 10-truss reinforcing structure; 11-an upper connecting ring; 12-a lower connecting ring; 14-connecting blocks; 15-auxiliary piles; 16-upper connecting rod; 17-lower connecting rod; 18-fixing rod; 19-a reinforcing bar; 2-steel pipe pile.
Description of the embodiments
As shown in fig. 1 to 3, the offshore wind turbine single pile foundation with the truss reinforcing structure comprises a steel pipe pile 2 and the truss reinforcing structure 10, wherein the truss reinforcing structure 10 comprises an upper connecting ring 11, a lower connecting ring 12 and at least three connecting blocks 14 which are circumferentially arranged, the upper connecting ring 11 and the lower connecting ring 12 are respectively arranged on the steel pipe pile 2, an upper connecting rod 16 is arranged between the connecting blocks 14 and the upper connecting ring 11, a lower connecting rod 17 is arranged between the connecting blocks 14 and the lower connecting ring 12, the bottom surface of the lower connecting ring 12 is level with the bottom surface of the connecting blocks 14, and the bottom surface of the connecting blocks 14 is connected with auxiliary piles 15 which are buried into a seabed. Through the upper connecting ring 11 and the lower connecting ring 12, the connection between the steel pipe pile 2 and the truss reinforcing structure 10 can be facilitated, and the connection blocks 14, the upper connecting rods 16 and the lower connecting rods 17 are arranged, so that the truss reinforcing structure 10 is a table-shaped supporting frame, support to steel-pipe pile 2 is improved, and supplementary stake 15 can insert the seabed simultaneously, can improve the bearing capacity of steel-pipe pile 2, improves the steadiness of being connected with the seabed for steel-pipe pile 2 is difficult for taking place to topple. Through the setting that lower go-between 12 and connecting block 14 are flush, can make truss reinforcement structure 10's bottom laminate with the seabed mutually, make truss reinforcement structure 10 and steel-pipe pile 2 form triangle stable structure simultaneously, improve supporting effect and holistic steadiness. The truss reinforcing structure 10 is a prefabricated member, and is constructed by connecting the upper connecting ring 11, the lower connecting ring 12, the connecting block 14, and the like on shore, and then installing the upper connecting ring 11 and the lower connecting ring 12 at the designated positions of the steel pipe pile 2, and performing pile sinking together with the steel pipe pile 2. The connecting block 14 is of a block structure, so that the interaction area between the truss reinforcing structure 10 and the seabed can be effectively increased compared with a tubular structure, the overall stability of the true and false structure is improved, and the horizontal displacement of a fan is reduced. The auxiliary piles 15 can be selected to have proper lengths according to the geological data of the seabed soil layers so as to obtain the highest engineering benefit.
A fixing rod 18 is provided between the adjacent connection blocks 14 to achieve connection between the adjacent connection blocks 14. The fixing rods 18 connect adjacent connecting blocks 14, so that the overall stability of the truss reinforcing structure 10 is improved, and the supporting effect on the steel pipe piles 2 is improved.
A reinforcing rod 19 is arranged between the adjacent upper connecting rods 16. The reinforcing rods 19 are connected with the upper connecting rods 16, so that the overall strength of the truss is improved.
The number of the reinforcing rods 19 arranged between the adjacent upper connecting rods 16 is two, and the two reinforcing rods 19 are arranged in a crossed manner and fixedly connected at the crossed position. The two reinforcing rods 19 are arranged in a crossing manner, so that the overall connection strength can be improved, and the supporting and reinforcing effects can be improved.
The number of connection blocks 14 is four. By means of the four connecting blocks 14, the contact area between the truss reinforcing structure 10 and the seabed is increased, so that the whole truss reinforcing structure is not prone to overturning. Meanwhile, compared with the triangular structure of the three connecting blocks 14, the area enclosed by the lower connecting rods 17 can be increased under the condition that the lengths of the lower connecting rods 17 are the same, so that the overall stability is improved. The arrangement of five or more connecting blocks 14 has less improvement in stability and greatly increases the consumption of steel. The size of the connection blocks 14 should be at least guaranteed to be 5 times the diameter of the truss pipe to fully connect the truss structure with the auxiliary piles 15 and to increase the stability of the single pile foundation by increasing the contact area with the soil body.
The auxiliary pile 15 is of a solid cylindrical structure, and the pile bottom is in an inverted conical shape. The solid cylindrical structure can improve the intensity of auxiliary pile 15, and the reverse conical design of bottom can make the auxiliary loading into the seabed more light.
The truss reinforcement structure 10 has a seawater corrosion resistant coating on the surface. Through the arrangement of the seawater corrosion resistant coating, the truss reinforcing structure 10 is not easy to corrode, and the service life of the truss reinforcing structure is prolonged.
The fixing rod 18, the upper connecting rod 16, the lower connecting rod 17 and the auxiliary piles 15 are connected inside the connection block 14. After the fixing rod 18, the upper connecting rod 16, the lower connecting rod 17 and the auxiliary pile 15 are connected, the connecting block 14 is arranged outside the connecting part, so that the connecting part can be protected, and the connecting strength of the connecting part can be improved. The connection block 14 may be formed by concrete casting.
When the offshore wind turbine single pile foundation with the truss side supporting structure is installed, the method comprises the following steps:
1. prefabricating a truss reinforcing structure 10 on land, wherein the steel pipe piles 2 are connected with the truss reinforcing structure 10 through nesting and welding;
2. positioning mounting points in a target sea area, and driving the steel pipe piles 2 of the truss reinforcing structure 10 into the seabed to a specified depth;
3. the integrity of the truss reinforcing structure 10 and the embedded quality of the auxiliary piles 15 are checked.
The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.
Claims (9)
1. An offshore wind turbine single pile foundation with an externally-added truss reinforcing structure, which is characterized in that: comprises a steel pipe pile and a truss reinforcing structure, wherein the truss reinforcing structure comprises an upper connecting ring, a lower connecting ring and at least three connecting blocks, the upper connecting ring and the lower connecting ring are arranged on the steel pipe pile, an upper connecting rod is arranged between the connecting block and the upper connecting ring, a lower connecting rod is arranged between the connecting block and the lower connecting ring, and an auxiliary pile buried in the seabed is connected to the bottom surface of the connecting block.
2. An offshore wind turbine mono-pile foundation with an externally applied truss reinforcement structure as defined in claim 1 wherein: the bottom surface of the lower connecting ring is level with the bottom surface of the connecting block.
3. An offshore wind turbine mono-pile foundation with an externally applied truss reinforcement structure as defined in claim 1 wherein: and a fixed rod is arranged between the adjacent connecting blocks so as to realize the connection between the adjacent connecting blocks.
4. An offshore wind turbine mono-pile foundation with an externally applied truss reinforcement structure as defined in claim 1 wherein: and a reinforcing rod is arranged between the adjacent upper connecting rods.
5. The offshore wind turbine mono-pile foundation of claim 4 with additional truss reinforcement structure, wherein: the number of the reinforcing rods arranged between the adjacent upper connecting rods is two, and the two reinforcing rods are arranged in a crossing manner and fixedly connected at the crossing position.
6. An offshore wind turbine mono-pile foundation with an externally applied truss reinforcement structure as defined in claim 1 wherein: the number of the connecting blocks is four.
7. An offshore wind turbine mono-pile foundation with an externally applied truss reinforcement structure as defined in claim 1 wherein: the auxiliary pile is of a solid cylindrical structure, and the pile bottom is in an inverted conical shape.
8. An offshore wind turbine mono-pile foundation with an externally applied truss reinforcement structure as defined in claim 1 wherein: the surface of the truss reinforcing structure is provided with a seawater corrosion resistant coating.
9. An offshore wind turbine mono-pile foundation with an externally applied truss reinforcement structure according to claim 3, wherein: the fixing rod, the upper connecting rod, the lower connecting rod and the auxiliary pile are connected in the connecting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223320124.7U CN219471002U (en) | 2022-12-08 | 2022-12-08 | Offshore wind turbine single pile foundation externally provided with truss reinforcing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223320124.7U CN219471002U (en) | 2022-12-08 | 2022-12-08 | Offshore wind turbine single pile foundation externally provided with truss reinforcing structure |
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| Publication Number | Publication Date |
|---|---|
| CN219471002U true CN219471002U (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223320124.7U Active CN219471002U (en) | 2022-12-08 | 2022-12-08 | Offshore wind turbine single pile foundation externally provided with truss reinforcing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219471002U (en) |
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2022
- 2022-12-08 CN CN202223320124.7U patent/CN219471002U/en active Active
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