CN217480230U - Offshore wind power jacket large cylinder foundation suitable for deep water - Google Patents

Offshore wind power jacket large cylinder foundation suitable for deep water Download PDF

Info

Publication number
CN217480230U
CN217480230U CN202123050321.7U CN202123050321U CN217480230U CN 217480230 U CN217480230 U CN 217480230U CN 202123050321 U CN202123050321 U CN 202123050321U CN 217480230 U CN217480230 U CN 217480230U
Authority
CN
China
Prior art keywords
jacket
cabin
wind power
deep water
offshore wind
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202123050321.7U
Other languages
Chinese (zh)
Inventor
钮新强
曾斌
刘海波
邹尤
张�成
吴司洲
甘乐
段斐
姜军倪
徐峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changjiang Institute of Survey Planning Design and Research Co Ltd
Original Assignee
Changjiang Institute of Survey Planning Design and Research Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changjiang Institute of Survey Planning Design and Research Co Ltd filed Critical Changjiang Institute of Survey Planning Design and Research Co Ltd
Priority to CN202123050321.7U priority Critical patent/CN217480230U/en
Application granted granted Critical
Publication of CN217480230U publication Critical patent/CN217480230U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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

Landscapes

  • Wind Motors (AREA)

Abstract

The utility model discloses a big drum basis of marine wind power jacket suitable for deep water relates to marine wind power foundation structure. The jacket comprises a circular cylinder and a jacket, wherein the circular cylinder comprises a central cabin and a plurality of outer cabins, and the top of the circular cylinder is provided with a cylinder skirt top plate and an opening at the bottom; the lower part of the jacket is wide, the upper part of the jacket is narrow, the jacket comprises a plurality of main leg columns and inclined struts, and the bottoms of the main leg columns are connected with the top of the central cabin through connecting transition sections. The utility model discloses pass the power route simple, do not have underwater grouting operation, shortened the marine construction cycle of cartridge type basis, saved the marine pile and refute the cost, have good application prospect in china 30-50m sea area.

Description

Offshore wind power jacket large cylinder foundation suitable for deep water
Technical Field
The utility model relates to a marine wind power foundation structure, it is the big drum basis of marine wind power jacket suitable for deep water that says so more specifically.
Background
Based on weak geological conditions such as silt, mucky soil, silty clay and the like in offshore areas in China, traditional pile foundations such as single-pile foundations and multi-pile jacket foundations are generally adopted, the two foundation types both need to enable the pile foundations to penetrate through the weak soil layers to reach bearing layers with good bearing capacity such as sand layers or bedrocks in hammering or static pressure and the like, the workload is large, and the offshore operation time is long.
With the increase of the unit capacity of the unit, the size and the material consumption of the foundation are required to be increased by adopting the traditional single pile and jacket foundation, and with the increase of the water depth, the offshore operation window period is reduced, the offshore pile sinking construction difficulty is increased, under the background, the cylindrical foundation is produced in the offshore wind power field, and sinks by utilizing the self-weight and negative pressure, so that the complicated piling process is avoided, and the offshore operation time is greatly shortened; such as patent numbers: 201711241209.7, the composite cylindrical foundation named as "a composite cylindrical foundation for offshore wind power", has been applied to several offshore wind farms, and has better applicability in offshore sea areas, but for water depth of more than 30m, considering that the foundation flange needs to reach a certain height above the still water surface, the height of the concrete transition section generally needs to reach more than 50-60m, the height of the existing transition section cannot meet the requirements, and the water surface line of the arc-shaped transition section is large, so that large wave force is generated, and the safety of the foundation structure is not facilitated.
As the surface layer of offshore sea areas in China is covered with thick silt, mucky soil, silt and other weak soil, in order to overcome the difficulty of piling in the depth of 30-50m, it is necessary to develop a large cylinder foundation of offshore wind power jacket suitable for deep water.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcomings of the background technology, and providing a big cylinder foundation of offshore wind power jacket suitable for deep water.
In order to realize the purpose, the technical scheme of the utility model is that: the large cylinder foundation of offshore wind power jacket suitable for deep water is characterized in that: the device comprises a circular cylinder and a jacket, wherein the circular cylinder comprises a central cabin and a plurality of outer cabins arranged on the outer surface of the central cabin, and a cylinder skirt top plate and an opening are arranged at the top of the circular cylinder;
the jacket is wide at the lower part and narrow at the upper part, the jacket comprises a plurality of main leg columns and inclined struts positioned between the two main leg columns, and the bottoms of the main leg columns are connected with the top point of the top of the central cabin through a connecting transition section.
In the technical scheme, the central cabin is a cube with an opening at the lower part, and comprises four filling core columns and four central cabin steel plates positioned among the four filling core columns.
In the technical scheme, the number of the main leg columns is four, the number of the connecting transition sections is four, the diameter of the bottom of each connecting transition section is equal to that of the core filling column, and the diameter of the top of each connecting transition section is equal to that of the main leg column.
In the above technical solution, a plurality of stiffening plates are arranged between the connecting transition section and the top plate of the cylinder skirt.
In the technical scheme, the number of the outer cabins is eight, each outer cabin comprises a basic outer barrel wall and two cabin dividing plates connected with the basic outer barrel wall, one cabin dividing plate is connected with the core filling column, the other cabin dividing plate is connected with the middle of the central cabin steel plate, two adjacent outer cabins share one cabin dividing plate, and the eight outer cabins share one basic outer barrel wall.
In the technical scheme, the thickness of the basic outer cylinder wall is 15-40mm, the thickness of the subdivision plate is 10-30mm, the thickness of the central cabin steel plate is 10-30mm, the diameter of the core filling column is 500-2500mm, the thickness of the top plate of the cylinder skirt is 10-20mm, and the length of the connecting transition section is 1-3 m.
In the technical scheme, the filling core column and the connecting transition section are filled with C30-C60 fine aggregate concrete.
In the technical scheme, a reinforcement cage is placed in the core filling column.
Compared with the prior art, the utility model, have following advantage:
1) the utility model discloses pass the power route simple, do not have underwater grouting operation, shortened the marine construction cycle of cartridge type basis, saved the marine pile and refute the cost, have good application prospect in china 30-50m sea area.
2) The utility model discloses passing upper portion load for the stem of filling out through the jacket, pass the power route simple, make full use of the compressive capacity and the tensile ability of stem of filling out, make the structure have self-supporting ability simultaneously.
3) The utility model discloses four main leg posts of upper portion jacket and four core filling post lug connection of circular cylinder body, the weight that can directly bear upper portion jacket structure when circular cylinder body sits ground has eliminated the risk that upper portion weight made skirt roof bucking.
4) The utility model discloses can adopt complete towing and navigating transportation from building the base to the transportation of installation position, circular cylinder provides the required buoyancy of towing and navigation and stationarity, and central cabin and outer cabin adjustable cylinder internal gas pressure remain stable, need not the barge and ship.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic view of the structure of the central chamber and the outer chamber.
The device comprises a circular barrel, 11-a central cabin, 111-a core filling column, 112-a central cabin steel plate, 12-an outer cabin, 121-a base outer barrel wall, 122-a partition plate, 13-a barrel skirt top plate, 2-a jacket, 21-a main leg column, 22-an inclined strut, 3-a connecting transition section and 31-a stiffening plate.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be apparent and readily appreciated by the description.
With reference to the accompanying drawings: the large cylinder foundation of offshore wind power jacket suitable for deep water is characterized in that: the jacket comprises a circular cylinder body 1 and a jacket 2, wherein the circular cylinder body 1 comprises a central cabin 11 and a plurality of outer cabins 12 which are connected with the outer surface of the central cabin 11, and a cylinder skirt top plate 13 and an opening are arranged at the top of the circular cylinder body 1;
the lower part of the jacket 2 is wide, the upper part of the jacket 2 is narrow, the jacket 2 comprises a plurality of main leg columns 21 and inclined struts 22 positioned between the two main leg columns 21, and the bottoms of the main leg columns 21 are connected with the top point of the top of the central cabin 11 through a connecting transition section 3; when the circular cylinder body 1 sits on the ground, the weight of the upper jacket 2 structure can be directly borne, and the risk that the top plate 13 of the skirt is bent due to the upper weight is eliminated; the inclined struts 22 are a plurality of X-shaped brackets;
the central cabin 11 is a cube with an open lower part, and the central cabin 11 includes four filler plugs 111 and four central cabin steel plates 112 located between the four filler plugs 111.
The number of the main leg columns 21 is four, the number of the connecting transition sections 3 is four, the diameter of the bottom of each connecting transition section 3 is equal to that of the packing column 111, and the diameter of the top of each connecting transition section 3 is equal to that of the main leg column 21.
And a plurality of stiffening plates 31 are arranged between the connecting transition section 3 and the top plate 13 of the cylindrical skirt.
The number of the outer cabins 12 is eight, each outer cabin 12 comprises a basic outer cylinder wall 121 and two subdivision plates 122 connected with the basic outer cylinder wall 121, one subdivision plate 122 is connected with the filler column 111, the other subdivision plate 122 is connected with the middle of the central cabin steel plate 112, two adjacent outer cabins 12 share one subdivision plate 122, and eight outer cabins 12 share one basic outer cylinder wall 121.
The thickness of the basic outer cylinder wall 121 is 15-40mm, the thickness of the subdivision plate 122 is 10-30mm, the thickness of the central cabin steel plate 112 is 10-30mm, the diameter of the filling stem 111 is 500-2500mm, the thickness of the cylinder skirt top plate 13 is 10-20mm, and the length of the connecting transition section 3 is 1-3 m.
The filling stem column 111 and the connecting transition section 3 are filled with C30-C60 fine aggregate concrete.
A reinforcement cage is placed in the filling stem 111.
The method for installing the large cylinder foundation of the offshore wind power jacket suitable for deep water is characterized by comprising the following steps of:
step 1: erecting four filler columns 111, and then splicing central cabin steel plates 112 to form a cubic central cabin 11;
step 2: welding four partition plates 122 on four filling core columns 111 to form a cylinder skirt internal frame, then enclosing and splicing the base outer cylinder wall 121, and finally welding the remaining four partition plates 122 between the base outer cylinder wall 121 and the middle part of a central cabin steel plate 112; a skirt top plate 13 is arranged at the top of the central cabin 11 and the outer cabin 12; the installation of the circular cylinder 1 is completed;
and 3, step 3: welding four connecting transition sections 3 on the four filling stem columns 111, wherein the diameter of the bottom of each connecting transition section 3 is the same as that of the filling stem column 111, and the diameter of the top of each connecting transition section 3 is the same as that of the main leg column 21;
and 4, step 4: and integrally hoisting the jacket 2 to the upper part of the circular cylinder 1, respectively welding the four main leg columns 21 with the four connecting transition sections 3, and then connecting the stiffening plates 31 to complete integral installation.
Examples
As shown in fig. 1, the circular cylinder 1 includes a base outer cylinder wall 121, a skirt top plate 13, a partition plate 122, a central cabin steel plate 112, and a filler pin 111. The diameter of the basic outer cylinder wall 121 is 40m, the side length of the square central cabin 11 is 18m, four filling stem columns 111 are located at four corner points of the central cabin 11, C60 concrete is filled in the filling stem columns 111, each filling stem column 111 is connected with a subdivision plate 122 and connected with the basic outer cylinder wall 121, and moreover, a subdivision plate 122 is arranged at the middle point of each central cabin steel plate 112 and connected with the basic outer cylinder wall 121;
the foundation construction process is as follows: step 1: erecting four filling core columns 111, and splicing central cabin steel plates 112 to form a square central cabin 11;
step 2: welding four partition plates 122 on four filling core columns 111 to form a cylinder skirt internal frame, then enclosing and splicing the base outer cylinder wall 121, and finally welding the remaining four partition plates 122 between the base outer cylinder wall 121 and the middle part of a central cabin steel plate 112; a skirt top plate 13 is arranged on the tops of the central cabin 11 and the outer cabin 12; the installation of the circular cylinder 1 is completed;
and step 3: welding four connecting transition sections 3 on the four filling stem columns 111, wherein the diameter of the bottom of each connecting transition section 3 is the same as that of the filling stem column 111, and the diameter of the top of each connecting transition section 3 is the same as that of the main leg column 21;
and 4, step 4: and integrally hoisting the jacket 2 to the upper part of the circular cylinder 1, respectively welding the four main leg columns 21 with the four connecting transition sections 3, and then connecting the stiffening plates 31 to complete integral installation.
As shown in fig. 2, when the diameter of the main leg column 21 is the same as that of the packing column 111, the connecting transition section 3 is made of a steel pipe with the same diameter; when the diameter of the main leg column 21 is different from that of the packing column 111, the connecting transition section 3 is in the form of a tapered pipe with a gradually changing circular section, and in the embodiment, the length of the connecting transition section 3 is 3 m.
In the embodiment, as shown in fig. 3, the circular cylinder 1 has 9 cabins in total, including 1 square central cabin 11 and 8 fan-like outer cabins 12, the foundation transportation adopts integral self-floating towing transportation, the draught depth of the whole foundation is controlled by adjusting the air pressure in the central cabin 11 so as to adjust the floating center height of the foundation, the stability and the anti-overturning performance of the floating transportation of the foundation are realized by adjusting the air pressure in the 8 outer cabins 12, the 8 outer compartments 12 are designed to control the amplitude of the rocking motion of the foundation in 8 directions, as the center of gravity of the foundation shifts from the center of the central compartment 11 to one of the outer compartments 12, the pressure in the two opposite outer chambers 12 of this outer chamber 12 can be reduced equally at the same time to restore the foundation, which, when the center of gravity of the foundation is shifted in the direction of the filler stem 111, the air pressure in the two outer chambers 12 adjacent to the stem 111 can be increased while the air pressure in the two outer chambers 12 adjacent to the opposite side of the stem 111 is decreased.
Other parts not described belong to the prior art.

Claims (7)

1. The large cylinder foundation of offshore wind power jacket suitable for deep water is characterized in that: the jacket comprises a circular cylinder (1) and a jacket (2), wherein the circular cylinder (1) comprises a central cabin (11) and a plurality of outer cabins (12) which are connected with the outer surface of the central cabin (11), and a skirt top plate (13) and an opening are arranged at the top of the circular cylinder (1);
the lower part of the jacket (2) is wide, the upper part of the jacket is narrow, the jacket (2) comprises a plurality of main leg columns (21) and inclined struts (22) positioned between the two main leg columns (21), and the bottoms of the main leg columns (21) are connected with the top point of the top of the central cabin (11) through a connecting transition section (3);
the central cabin (11) is a cube with an opening at the lower part, and the central cabin (11) comprises four filling core columns (111) and four central cabin steel plates (112) positioned among the four filling core columns (111).
2. The offshore wind power jacket large cylinder foundation suitable for deep water of claim 1, wherein: the number of the main leg columns (21) is four, the number of the connecting transition sections (3) is four, the diameter of the bottom of each connecting transition section (3) is equal to that of the filling column (111), and the diameter of the top of each connecting transition section (3) is equal to that of each main leg column (21).
3. The offshore wind power jacket large cylinder foundation suitable for deep water of claim 2, wherein: and a plurality of stiffening plates (31) are arranged between the connecting transition section (3) and the top plate (13) of the cylindrical skirt.
4. The offshore wind power jacket large cylinder foundation suitable for deep water of claim 3, wherein: the number of the outer cabins (12) is eight, each outer cabin (12) comprises a basic outer cylinder wall (121) and two cabin dividing plates (122) connected with the basic outer cylinder wall (121), one cabin dividing plate (122) is connected with the filling column (111), the other cabin dividing plate (122) is connected with the middle of the central cabin steel plate (112), two adjacent outer cabins (12) share one cabin dividing plate (122), and the eight outer cabins (12) share one basic outer cylinder wall (121).
5. The offshore wind power jacket large cylinder foundation suitable for deep water of claim 4, wherein: the thickness of the basic outer cylinder wall (121) is 15-40mm, the thickness of the subdivision plate (122) is 10-30mm, the thickness of the central cabin steel plate (112) is 10-30mm, the diameter of the filling stem column (111) is 500-2500mm, the thickness of the cylinder skirt top plate (13) is 10-20mm, and the length of the connecting transition section (3) is 1-3 m.
6. The offshore wind power jacket large cylinder foundation suitable for deep water of claim 5, wherein: the filling core column (111) and the connecting transition section (3) are filled with C30-C60 fine aggregate concrete.
7. The offshore wind power jacket large cylinder foundation suitable for deep water of claim 6, wherein: and a reinforcement cage is placed in the filling stem (111).
CN202123050321.7U 2021-12-07 2021-12-07 Offshore wind power jacket large cylinder foundation suitable for deep water Active CN217480230U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123050321.7U CN217480230U (en) 2021-12-07 2021-12-07 Offshore wind power jacket large cylinder foundation suitable for deep water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123050321.7U CN217480230U (en) 2021-12-07 2021-12-07 Offshore wind power jacket large cylinder foundation suitable for deep water

Publications (1)

Publication Number Publication Date
CN217480230U true CN217480230U (en) 2022-09-23

Family

ID=83303324

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123050321.7U Active CN217480230U (en) 2021-12-07 2021-12-07 Offshore wind power jacket large cylinder foundation suitable for deep water

Country Status (1)

Country Link
CN (1) CN217480230U (en)

Similar Documents

Publication Publication Date Title
Guo et al. Review of integrated installation technologies for offshore wind turbines: Current progress and future development trends
US11448193B2 (en) Self-aligning to wind facing floating platform supporting multi-wind turbines and solar for wind and solar power generation and the construction method thereon
CN107542101B (en) Construction method of offshore four-buoy-buoyancy tank combined foundation structure
JP6386455B2 (en) Energy attenuator
CN109026551B (en) Novel floating type wind turbine foundation platform based on tuned liquid column oscillation damper
CN107653895B (en) Combined offshore six-buoy buoyancy tank foundation structure and construction method thereof
CN109736343B (en) Offshore wind power foundation, installation method thereof and wind generating set
CN110374820B (en) Combined type ring cylinder buoyancy tank foundation structure and construction method thereof
CN107630461B (en) Combined offshore four-buoy buoyancy tank foundation structure and construction method thereof
EP2463524B1 (en) Marine wind turbine whole machine
CN102162256A (en) Maritime foundation base
CN112127383A (en) Offshore wind power foundation with separated bins in barrel top dense beam barrel and single-column negative pressure barrel
CN103556651A (en) Precast concrete jacket type offshore wind turbine foundation
CN112855455A (en) Floating foundation and fan system
CN112900470A (en) Offshore wind turbine barrel type foundation underwater floating structure and method
CN112127381A (en) Offshore wind power foundation with separated bins in barrel top dense beam barrel and single-column variable-section negative pressure barrel and construction method
CN209162870U (en) A kind of bridge tower composite foundation suitable for deep water soft clay area
CN203145066U (en) Offshore single-pile basic horizontal carrying force loading device
CN217480230U (en) Offshore wind power jacket large cylinder foundation suitable for deep water
CN109356186B (en) Bridge tower composite foundation applicable to deep water soft soil areas and construction method
CN115432129A (en) Platform external-expanding three-stand-column semi-submersible type offshore photovoltaic supporting system and installation and construction method
CN114108684A (en) Large cylinder foundation of offshore wind power conduit rack suitable for deepwater and installation method
CN110397065B (en) Multi-barrel jacket wind power foundation structure and construction method thereof
CN112627216A (en) Flat-plate permeable breakwater structure supported by box-type foundation
CN2589514Y (en) Vertical load-supporting pile having buoyancy pontoon for pile foundation wharf

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant