CN112942405B - Quickly-assembled and anti-scouring combined offshore wind power foundation and method - Google Patents
Quickly-assembled and anti-scouring combined offshore wind power foundation and method Download PDFInfo
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- CN112942405B CN112942405B CN202110153064.5A CN202110153064A CN112942405B CN 112942405 B CN112942405 B CN 112942405B CN 202110153064 A CN202110153064 A CN 202110153064A CN 112942405 B CN112942405 B CN 112942405B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/24—Foundations constructed by making use of diving-bells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/22—Foundations specially adapted for wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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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 provides a combination formula offshore wind power basis and method of fast assembly and scour prevention, it includes basic main part, the scour prevention filter screen, vortex device and connecting piece, through set up the scour prevention filter screen in basic main part overcoat, the landing leg of basic main part is connected with the bottom plate of scour prevention filter screen, the single pile is connected with the apron of basic main part upper end, the slant cable wire and the bottom plate of scour prevention filter screen bottom are connected, through the connecting piece both ends respectively with the buckle of scour prevention filter screen upper end and the earrings on the single pile be connected, vortex device dangles in the scour prevention filter screen with the nodal connection of taut state toper scour prevention filter screen, sink into seabed rock hole inner bottom plate and hole bottom contact through basic main part. The invention overcomes the problems of lower protective performance and stability, long construction period and high cost of the original wind power single pile foundation, and has the characteristics of simple structure, high structural strength, good stability, good protective performance, quick assembly, short construction period, simple and convenient operation and low maintenance cost.
Description
Technical Field
The invention belongs to the technical field of offshore wind power, and relates to a combined offshore wind power foundation and a combined offshore wind power foundation method which are rapid to assemble and are anti-scouring.
Background
After the oil crisis in the 70 s of the 20 th century, a new era of wind energy utilization began. On some lands with good geographical positions, the development of wind energy has certain economic value, meanwhile, people find that the economy of offshore wind power generation is good, the offshore wind speed is 20-100% higher than the land wind speed due to the fact that no barrier influences exist, and the power generation efficiency is correspondingly improved. Offshore wind power is an important field of renewable energy development and is one of the important directions of global wind power generation in recent years. Offshore wind power has the characteristics of abundant resources, high electricity generation utilization hours, no land occupation, no water resource consumption and suitability for large-scale development, and simultaneously China not only has a long shallow water coastline, but also has important cities relatively close to the coast, so the prospect of offshore wind power generation is widely seen based on the reasons. Although offshore wind power has many advantages, enough attention should be paid to the disadvantages of the offshore wind power, which mainly shows that the offshore wind power is complex in basic construction process, long in period, high in cost and the like.
At present, fixed supporting structures and foundation foundations used by offshore wind turbine generators are mostly single-pile foundations, gravity foundations, jacket foundations, multi-foot-frame foundations, suction tube foundations and the like. Although the offshore wind power foundation has the advantages of large structural rigidity and good overall stability, the offshore wind power foundation has a long construction period, a complex structure and high transportation cost, and is sensitive to seabed scouring, and corresponding measures are required to prevent and slow down the influence of scouring on foundation safety. The common measures for preventing and slowing down scouring in the engineering at present mainly comprise throwing and filling, geotextile compaction, bionic aquatic weed treatment and the like.
The throwing and filling method is the most widely adopted method at present, mainly comprises throwing and filling sand bags, stones and the like, but has the defects of poor construction precision, large loss, poor forming effect of a protective layer and large maintenance amount.
Geotextile processes are primarily covered by sand or interlocking rows. However, the sand is at risk of loss under the repeated scouring of the wave flow, and no example verification of long-term reliable use exists at present.
When the bionic aquatic weeds are treated, the flow speed of some sea water is high, the grain size of sand grains is small, a bionic grass area which is effectively deposited and covered cannot be formed, and the cost is high.
Disclosure of Invention
The invention aims to solve the technical problem of providing a quickly-assembled and anti-scouring combined offshore wind power foundation and a method, wherein the quickly-assembled and anti-scouring combined offshore wind power foundation is simple in structure, an anti-scouring filter screen is sleeved outside a foundation main body, a supporting leg of the foundation main body is connected with a bottom plate of the anti-scouring filter screen, a single pile is connected with a cover plate at the upper end of the foundation main body, an inclined steel cable at the bottom of the anti-scouring filter screen is connected with the bottom plate, two ends of a connecting piece are respectively connected with a retaining ring at the upper end of the anti-scouring filter screen and an ear ring on the single pile, a turbulence device is connected with a node of the conical anti-scouring filter screen in a tightened state and is suspended in the anti-scouring filter screen, the foundation main body is sunk into a seabed rock hole, the bottom plate is contacted with the bottom of the hole, the structure is high in strength, the stability is good in protection performance, the quickly-assembled and the construction period is short, the operation is simple and the maintenance cost is low.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a combined offshore wind power foundation capable of being assembled quickly and preventing scouring comprises a foundation main body, an anti-scouring filter screen, a turbulence device and a connecting piece; the lock catch at one end of the connecting piece is hooked with the retaining ring of the anti-scouring filter screen, the bottom plate of the anti-scouring filter screen is connected with the supporting leg of the foundation main body, and the plurality of turbulence devices are connected with the anti-scouring filter screen; the basic main body is located the scour prevention filter screen, and the vortex device hangs in the scour prevention filter screen.
The basic main body is a hollow tank structure with an opening at the upper end, a mesh cavernous body is wrapped outside the tank body, a plurality of inclined supporting legs are arranged at the bottom of the tank body, a filler is arranged in the tank body, and a cover plate is arranged at the opening end of the tank body.
Jar body upper end diameter is less than jar body bottom diameter, is located jar body middle part and sets up the arc jar neck of indent, and the mesh cavernosum wraps up between jar body open end to jar body bottom.
The mesh cavernosum is both ends open-ended tubular structure, and a section of thick bamboo inner wall and a section of thick bamboo outer wall are the arc bellying, and the arc bellying of a section of thick bamboo inner wall contacts with the jar neck of the jar body, and the arc bellying of a section of thick bamboo outer wall is tangent with jar body open end and jar body bottom.
One end of the supporting leg is connected with a supporting leg plate, and the fastener penetrates through the supporting leg plate to be connected with the bottom of the tank body; the edge of the cover plate is provided with a through hole, and the fastener passes through the through hole to be connected with the opening end of the tank body; the supporting legs are connected with the supporting leg holes of the bottom plate; the center of the bottom plate is provided with a supporting hole.
The anti-scouring filter screen is a hollowed-out conical screen interwoven by an annular steel cable and an inclined steel cable, the inclined steel cable at the bottom of the hollowed-out conical screen with a larger cross section is connected with a cable hole at the edge of the bottom plate, and a retaining ring is arranged at the top edge of the hollowed-out conical screen with a smaller cross section.
And the node where the annular steel cable and the inclined steel cable of the anti-scouring filter screen are interwoven is connected with the flow disturbing device.
The vortex device includes the span wire of being connected with the filter screen bowl and is located the vortex area that the filter screen bowl bottom is connected, and the other end of span wire is connected with the nodal connection of scour prevention filter screen.
The connecting piece includes the hasp of being connected with the screw rod both ends to and be located the fixed nut in screw rod middle part, the screw thread opposite direction at screw rod both ends.
The anchoring method for the combined type offshore wind power foundation with rapid assembly and scour prevention comprises the following steps:
s1, mounting support legs and a bottom plate, supporting the bottom plate and the tank body of the foundation main body by a support frame, matching support holes in the bottom plate with support columns of the support frame, supporting the bottom plate by a support plate, and contacting the bottom of the tank body with the upper ends of the support columns;
s2, mounting support legs and a bottom plate, matching the lower ends of the support legs with support leg holes of the bottom plate, and connecting the support legs with the bottom of the tank body of the foundation main body through bolts; fully welding the lower ends of the supporting legs with supporting leg holes of the bottom plate;
s3, filling, namely pouring the filler into the tank body of the foundation main body, and filling quick-setting concrete; the filler is concrete, lead block and rock or a mixture of the concrete, the lead block and the rock;
s4, installing a cover plate, matching the cover plate with a tank opening at the upper end of the tank body of the basic main body, and connecting and fixing a fastener with the tank opening through the cover plate;
s5, installing an anti-scouring filter screen, sleeving the anti-scouring filter screen outside the basic main body, enabling the bottom with a larger cross section to face downwards, and enabling an inclined steel cable at the bottom of the anti-scouring filter screen to penetrate through a cable hole in a bottom plate to be bound and connected with the bottom plate;
s6, hoisting, namely slowly sinking the foundation main body into the pre-drilled seabed rock hole by adopting hoisting equipment, wherein the bottom plate is in contact with the bottom of the rock hole;
or welding the single pile with the cover plate; the lock catches at the two ends of the connecting piece are respectively hooked with the retaining ring and the earrings on the single piles, and the screw rod is rotated to enable the anti-scouring filter screen to be in a tightened state; after a suspension cable of the turbulence device is connected with a node of the anti-scouring filter screen, the foundation main body is slowly sunk into a pre-drilled seabed rock hole, and the bottom plate is contacted with the bottom of the rock hole.
A combined offshore wind power foundation capable of being assembled quickly and preventing scouring comprises a foundation main body, an anti-scouring filter screen, a turbulence device and a connecting piece; the lock catch at one end of the connecting piece is hooked with the retaining ring of the anti-scouring filter screen, the bottom plate of the anti-scouring filter screen is connected with the supporting leg of the foundation main body, and the plurality of turbulence devices are connected with the anti-scouring filter screen; the basic main body is located the scour prevention filter screen, and the vortex device hangs in the scour prevention filter screen. Simple structure, through establish the scour prevention filter screen at basic main part overcoat, the landing leg of basic main part is connected with the bottom plate of scour prevention filter screen, the apron connection of single pile and basic main part upper end, the slant cable wire and the bottom plate of scour prevention filter screen bottom are connected, be connected with the buckle of scour prevention filter screen upper end and the earrings on the single pile respectively through the connecting piece both ends, the vortex device hangs in the scour prevention filter screen with the nodal connection of tightening state toper scour prevention filter screen, immerse seabed rock hole inner bottom plate and hole bottom contact through basic main part, structural strength is high, good stability, the barrier propterty is good, but fast assembly, construction cycle is short, easy operation is convenient, low maintenance cost.
In the preferred scheme, the basic main body is a hollow tank structure with an opening at the upper end, a mesh cavernous body is wrapped outside the tank body, a plurality of inclined supporting legs are arranged at the bottom of the tank body, a filler is arranged in the tank body, and a cover plate is arranged at the opening end of the tank body. Simple structure, during the use, be located the superficial sand deposit that the outer mesh cavernosum that covers of jar adsorbs carrying in the ocean current around basic main part, the landing leg is connected with the bottom plate and is supported jar body, and the filler is used for increasing basic main part's overall quality, improves stability, and the apron is being connected with jar mouthful of jar of body, and the single pile forms overall structure with the apron is connected.
In the preferred scheme, jar body upper end diameter is less than jar body bottom diameter, is located jar body middle part and sets up the arc jar neck of indent, and the mesh cavernosum wraps up between jar body open end to jar body bottom. Simple structure, during the use, the mesh cavernosum parcel jar body, receiving the suspended solid and strikeing down, the mesh cavernosum is favorable to slowing down the impact force, makes the jar body effectively protected.
In the preferred scheme, the mesh cavernosum is the tubular structure of both ends open-ended, and a section of thick bamboo inner wall and a section of thick bamboo outer wall are the arc bellying, and the arc bellying of a section of thick bamboo inner wall contacts with the jar neck of the jar body, and the arc bellying of a section of thick bamboo outer wall is tangent with jar body open end and jar body bottom. Simple structure, during the use, the mesh cavernosum inner wall and the outer wall of tubular structure are the arc bellying, and the arc bellying of inner wall and the jar neck cooperation contact of the jar body block that the mesh cavernosum upwards floats and deviate from a jar body, and the arc bellying of outer wall forms the streamline structure, is favorable to reducing the resistance of ocean current, makes basic main part atress reduce, improves stability.
In a preferred scheme, one end of each supporting leg is connected with a supporting leg plate, and a fastener penetrates through the supporting leg plate to be connected with the bottom of the tank body; the edge of the cover plate is provided with a through hole, and the fastener passes through the through hole to be connected with the opening end of the tank body; the supporting legs are connected with the supporting leg holes of the bottom plate; the center of the bottom plate is provided with a supporting hole. Simple structure during the use, adopts the fastener to pass the landing leg board and be connected fixedly with basic main part's jar body bottom, simple to operate is swift, and the bottom plate center sets up the supported hole and cooperates with the support frame, during the installation, by support frame supporting bottom plate and basic main part.
Preferably, the support frame includes the support column of the vertical connection of supporting baseplate to and with support column complex backup pad, during the installation, the support column passes the supported hole at bottom plate center, backup pad and bottom plate contact, support column upper end and the contact of the jar body bottom of basic main part.
In the preferred scheme, the anti-scouring filter screen is a hollowed-out conical net interwoven by an annular steel cable and an inclined steel cable, the inclined steel cable at the bottom of the hollowed-out conical net with a larger cross section is connected with a cable hole at the edge of the bottom plate, and a retaining ring is arranged at the top edge of the hollowed-out conical net with a smaller cross section. Simple structure, during the use, the slant cable wire of scour prevention filter screen is bound with the cable hole of bottom plate, and the hasp at connecting piece both ends links to each other with the earrings hook on buckle and the single pile, forms the scour prevention filter screen of toper structure, and the great one end in scour prevention filter screen cross-section is down.
In a preferred scheme, the node where the annular steel cable and the oblique steel cable of the anti-scouring filter screen are interwoven is connected with the flow disturbing device. Simple structure, during the use, the less one end in toper structure's scour prevention filter screen cross-section is located upper portion, is located the node and connects the vortex device and dangles in the scour prevention filter screen.
Preferably, the ring-shaped wire rope and the diagonal wire rope are soft ropes.
In preferred scheme, vortex device includes the span wire of being connected with the filter screen bowl and is located the vortex area of filter screen bowl bottom connection, and the other end of span wire is connected with the nodal connection of scour prevention filter screen. Simple structure, during the installation, the nodal connection of span wire and scour prevention filter screen makes the filter screen bowl hang and in the scour prevention filter screen, during the use, when the scour prevention filter screen is flowed through to the ocean current, the turbulent flow area is floated along with the sea water and is carried out the disturbance to the ocean current, and the effectual local water velocity that reduces basis gathers the superficial sand that carries in the rivers.
In a preferred scheme, the connecting piece comprises lock catches connected with two ends of the screw rod and nuts fixed in the middle of the screw rod, and the thread directions of the two ends of the screw rod are opposite. Simple structure, during the use, screw thread and the hasp cooperation of screw rod both ends opposite direction, after the buckle links with the buckle hook of the earrings of single pile and anti-scour filter screen, the hasp at the knob power drive screw rod both ends of applying the nut is close to each other, taut slant cable wire of stating the anti-scour filter screen, messenger's anti-scour filter screen is in the state of tightening.
In a preferred embodiment, the method for anchoring a combined offshore wind power foundation, which is fast assembled and scour-proof as described above, comprises the following steps:
s1, mounting support legs and a bottom plate, supporting the bottom plate and the tank body of the foundation main body by a support frame, matching support holes in the bottom plate with support columns of the support frame, supporting the bottom plate by a support plate, and contacting the bottom of the tank body with the upper ends of the support columns;
s2, mounting support legs and a bottom plate, matching the lower ends of the support legs with support leg holes of the bottom plate, and connecting the support legs with the bottom of the tank body of the foundation main body through bolts; fully welding the lower ends of the supporting legs with supporting leg holes of the bottom plate;
s3, filling, namely pouring the filler into the tank body of the foundation main body, and filling quick-setting concrete; the filler is concrete, lead block and rock or a mixture of the concrete, the lead block and the rock;
s4, installing a cover plate, matching the cover plate with a tank opening at the upper end of the tank body of the basic main body, and connecting and fixing a fastener with the tank opening through the cover plate;
s5, installing an anti-scouring filter screen, sleeving the anti-scouring filter screen outside the basic main body, enabling the bottom with a larger cross section to face downwards, and enabling an inclined steel cable at the bottom of the anti-scouring filter screen to penetrate through a cable hole in a bottom plate to be bound and connected with the anti-scouring filter screen;
s6, hoisting, namely slowly sinking the foundation main body into the pre-drilled seabed rock hole by adopting hoisting equipment, wherein the bottom plate is in contact with the bottom of the rock hole;
or welding the single pile with the cover plate; the lock catches at the two ends of the connecting piece are respectively hooked with the retaining ring and the earrings on the single piles, and the screw rod is rotated to enable the anti-scouring filter screen to be in a tightened state; after a suspension cable of the turbulence device is connected with a node of the anti-scouring filter screen, the foundation main body is slowly sunk into a pre-drilled seabed rock hole, and the bottom plate is contacted with the bottom of the rock hole.
The utility model provides a combination formula offshore wind power basis and method of fast assembly and scour prevention, it includes the basis main part, the scour prevention filter screen, vortex device and connecting piece, through set up the scour prevention filter screen in basic main part overcoat, the landing leg of basis main part is connected with the bottom plate of scour prevention filter screen, the apron connection of single pile and basis main part upper end, the slant cable wire and the bottom plate of scour prevention filter screen bottom are connected, be connected with the buckle of scour prevention filter screen upper end and the earrings on the single pile respectively through the connecting piece both ends, vortex device and the nodal connection of taut state toper scour prevention filter screen hang in the scour prevention filter screen, immerse seabed rock hole infrabasal plate and the contact of hole bottom through the basis main part. The invention overcomes the problems of lower protective performance and stability, long construction period and high cost of the original wind power single pile foundation, and has the characteristics of simple structure, high structural strength, good stability, good protective performance, quick assembly, short construction period, simple and convenient operation and low maintenance cost.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the basic body of the present invention.
Fig. 3 is a schematic view of the connection of the connector of the present invention with a mono-pile and an anti-erosion screen.
FIG. 4 is a cross-sectional view of a mesh sponge of the present invention.
Fig. 5 is a schematic top view of an erosion screen of the present invention.
FIG. 6 is a schematic structural diagram of a spoiler apparatus according to the present invention.
FIG. 7 is a schematic view of the connection and disassembly structure of the leg and the bottom of the basic body tank of the present invention.
Fig. 8 is a schematic structural view of the connector of the present invention.
Fig. 9 is a state view of the stand according to the present invention supporting the base body and the bottom plate.
Fig. 10 is a use state diagram of the present invention.
In the figure: basic body 1, mesh cavernosum 11, landing leg 12, filler 13, apron 14, scour prevention filter screen 2, bottom plate 21, buckle 22, vortex device 3, filter screen bowl 31, span wire 32, vortex area 33, connecting piece 4, screw rod 41, hasp 42, nut 43.
Detailed Description
As shown in fig. 1-10, the fast-assembling and anti-scouring combined offshore wind power foundation comprises a foundation main body 1, an anti-scouring filter screen 2, a flow disturbing device 3 and a connecting piece 4; the lock catch 42 at one end of the connecting piece 4 is hooked with the retaining ring 22 of the anti-scouring filter screen 2, the bottom plate 21 of the anti-scouring filter screen 2 is connected with the supporting leg 12 of the foundation main body 1, and the plurality of flow disturbing devices 3 are connected with the anti-scouring filter screen 2; basic main part 1 is located scour prevention filter screen 2, and vortex device 3 hangs in scour prevention filter screen 2. Simple structure, through at 1 overcoat scour prevention filter screen 2 of basic main part, the landing leg 12 and the bottom plate 21 of scour prevention filter screen 2 of basic main part 1 are connected, the apron 14 of single pile and 1 upper end of basic main part is connected, the slant cable wire and the bottom plate 21 of scour prevention filter screen 2 bottom are connected, be connected with buckle 22 and the earrings on the single pile of scour prevention filter screen 2 upper end respectively through 4 both ends of connecting piece, vortex device 3 hangs in scour prevention filter screen 2 with the nodal connection of tightening state toper scour prevention filter screen 2, sink into seabed rock hole infrabasal plate 21 and the contact of hole bottom through basic main part 1, high structural strength, good stability, good protection performance, can fast assembly, construction cycle is short, and easy operation is convenient, and low maintenance cost.
In the preferred scheme, the basic main body 1 is a hollow tank structure with an opening at the upper end, a mesh cavernous body 11 is wrapped outside the tank, a plurality of inclined supporting legs 12 are arranged at the bottom of the tank, a filler 13 is arranged in the tank, and a cover plate 14 is arranged at the opening end of the tank. Simple structure, during the use, lie in that the outer mesh cavernosum 11 that covers of jar body adsorbs the sediment deposit of floating that carries in the ocean current around basic main part 1, landing leg 12 and bottom plate 21 connection support jar body, and filler 13 is used for increasing the whole quality of basic main part 1, improves stability, and the apron 14 is being connected with the jar mouth of jar body, and the single pile is connected with apron 14 and is formed overall structure.
In the preferred scheme, the diameter of the upper end of the tank body is smaller than the diameter of the bottom of the tank body, the concave arc-shaped tank neck is arranged in the middle of the tank body, and the mesh sponge body 11 is wrapped between the open end of the tank body and the bottom of the tank body. Simple structure, during the use, the mesh cavernosum 11 parcel jar body, receiving the suspended solid and strikeing down, the mesh cavernosum 11 is favorable to slowing down the impact force, makes jar body effectively protected.
In the preferred scheme, mesh cavernosum 11 is both ends open-ended tubular structure, and a section of thick bamboo inner wall and a section of thick bamboo outer wall are the arc bellying, and the arc bellying of a section of thick bamboo inner wall contacts with the jar neck of the jar body, and the arc bellying of a section of thick bamboo outer wall is tangent with jar body open end and jar body bottom. Simple structure, during the use, 11 inner walls of mesh cavernosum and outer wall of tubular structure are the arc bellying, and the arc bellying of inner wall and the jar neck cooperation contact of the jar body block that mesh cavernosum 11 floats upwards and deviate from the jar body, and the arc bellying of outer wall forms the streamline structure, is favorable to reducing the resistance of ocean current, makes 1 atress of basic main part reduce, improves stability.
In a preferable scheme, one end of the supporting leg 12 is connected with a supporting leg plate, and a fastener penetrates through the supporting leg plate to be connected with the bottom of the tank body; a through hole is arranged at the edge of the cover plate 14, and a fastener penetrates through the through hole to be connected with the opening end of the tank body; the support legs 12 are connected with the support leg holes of the bottom plate 21; the bottom plate 21 is centrally provided with a support hole. Simple structure, during the use, adopt the fastener to pass the landing leg board and be connected fixedly with basic main part 1's jar body bottom, simple to operate is swift, and bottom plate 21 center sets up the supported hole and cooperates with the support frame, during the installation, by support frame supporting bottom plate 21 and basic main part 1.
Preferably, the support frame comprises a support column and a support plate, the support column is vertically connected with the support bottom plate, the support plate is matched with the support column, when the support frame is installed, the support column penetrates through a support hole in the center of the bottom plate 21, the support plate is in contact with the bottom plate 21, and the upper end of the support column is in contact with the bottom of the tank body of the foundation main body 1.
In the preferred scheme, the anti-scouring filter screen 2 is a hollowed-out conical net interwoven by an annular steel cable and an inclined steel cable, the inclined steel cable at the bottom of the hollowed-out conical net with a larger cross section is connected with a cable hole at the edge of the bottom plate 21, and a retaining ring 22 is arranged at the top edge of the hollowed-out conical net with a smaller cross section. Simple structure, during the use, the slant cable wire of scour prevention filter screen 2 binds with the cable hole of bottom plate 21, and the hasp 42 and the buckle 22 at connecting piece 4 both ends and the earrings on the single pile hook even form the scour prevention filter screen 2 of toper structure, and the great one end in scour prevention filter screen 2 cross-section is down.
In a preferred scheme, a node where the annular steel cable and the oblique steel cable of the anti-scouring filter screen 2 are interwoven is connected with the flow disturbing device 3. Simple structure, during the use, the less one end in 2 cross-sections of anti-scour filter screen of toper structure is located upper portion, is located the node and connects vortex device 3 and dangles in anti-scour filter screen 2.
Preferably, the ring-shaped wire rope and the diagonal wire rope are soft ropes.
In a preferred scheme, the spoiler device 3 comprises a suspension cable 32 connected with the filter bowl 31 and a spoiler belt 33 connected with the bottom of the filter bowl 31, and the other end of the suspension cable 32 is connected with a node of the anti-scouring filter screen 2. Simple structure, during the installation, span wire 32 and scour prevention filter screen 2's nodal connection make in filter bowl 31 dangles and scour prevention filter screen 2, during the use, when the scour prevention filter screen 2 is flowed through to the ocean current, vortex area 33 is carried out the disturbance to the ocean current along with the sea water is wafted, the local current velocity of effectual reduction basis, with the superficial sand gathering of carrying in the rivers.
In a preferred embodiment, the connecting member 4 includes a locking buckle 42 connected to both ends of the screw rod 41, and a nut 43 fixed to a middle portion of the screw rod 41, wherein the screw threads at both ends of the screw rod 41 are opposite in direction. Simple structure, during the use, screw thread and the hasp 42 cooperation that the screw rod 41 both ends opposite direction, after hasp 42 links with the earrings of single pile and the buckle 22 hook of scour prevention filter screen 2, the hasp 42 that applies the knob power drive screw rod 41 both ends of nut 43 is close to each other, taut states the slant cable wire of scour prevention filter screen 2, makes scour prevention filter screen 2 be in the state of tightening.
In a preferred embodiment, the method for anchoring a fast-assembling and anti-scour combined offshore wind power foundation as described above comprises the following steps:
s1, mounting support legs and a bottom plate, supporting the bottom plate 21 and the tank body of the foundation main body 1 by a support frame, matching support holes in the bottom plate 21 with support columns of the support frame, supporting the bottom plate 21 by a support plate, and contacting the bottom of the tank body with the upper ends of the support columns;
s2, mounting the supporting legs and the bottom plate, matching the lower ends of the supporting legs 12 with supporting leg holes of the bottom plate 21, and connecting the supporting legs 12 with the bottom of the tank body of the basic main body 1 through bolts; then the lower end of the supporting leg 12 is fully welded with the supporting leg hole of the bottom plate 21;
s3, filling, namely filling the filler 13 into the tank body of the foundation main body 1, and filling quick-setting concrete; the filler 13 is concrete, lead block and rock or a mixture of the concrete, the lead block and the rock;
s4, installing a cover plate, matching the cover plate 14 with a tank opening at the upper end of the tank body of the basic main body 1, and connecting and fixing a fastener with the tank opening through the cover plate 14;
s5, installing an anti-scouring filter screen, sleeving the anti-scouring filter screen 2 outside the foundation main body 1, wherein the bottom with a larger cross section faces downwards, and an inclined steel cable at the bottom of the anti-scouring filter screen 2 penetrates through a cable hole in the bottom plate 21 to be bound and connected with the inclined steel cable;
s6, hoisting, namely slowly sinking the foundation main body 1 into the pre-drilled seabed rock hole by adopting hoisting equipment, and enabling the bottom plate 21 to be in contact with the bottom of the rock hole;
alternatively, the mono-pile is welded to the cover plate 14; the lock catches 42 at the two ends of the connecting piece 4 are respectively hooked with the retaining ring 22 and the earrings on the single piles, and the screw rod 41 is rotated to enable the anti-scouring filter screen 2 to be in a tightened state; after the suspension cable 32 of the turbulent flow device 3 is connected with the node of the scour prevention filter screen 2, the foundation main body 1 is slowly sunk into the pre-drilled submarine rock hole, and the bottom plate 21 is contacted with the bottom of the rock hole.
As above fast assembly and scour prevention combined offshore wind power foundation and method, when installing and using, establish scour prevention filter screen 2 outside basic main part 1, landing leg 12 of basic main part 1 is connected with bottom plate 21 of scour prevention filter screen 2, the single pile is connected with apron 14 of basic main part 1 upper end, the slant cable wire and the bottom plate 21 of scour prevention filter screen 2 bottom are connected, 4 both ends of connecting piece are connected with buckle 22 and the earrings on the single pile of scour prevention filter screen 2 upper end respectively, vortex device 3 hangs in scour prevention filter screen 2 with the node connection of tight state toper scour prevention filter screen 2, basic main part 1 sinks seabed rock hole infrabasal plate 21 and hole bottom contact, and structural strength is high, good stability, and protective properties is good, can fast assembly, the construction cycle is short, and easy and convenient to operate, and low in maintenance cost.
When the device is used, floating sand carried in ocean current is adsorbed by the mesh sponge 11 which is positioned outside the tank body and is deposited around the basic main body 1, the supporting legs 12 and the bottom plate 21 are connected to support the tank body, the filler 13 is used for increasing the overall quality of the basic main body 1 and improving the stability, the cover plate 14 is connected with the tank opening of the tank body, and the single pile and the cover plate 14 are connected to form an integral structure.
When the tank is used, the mesh sponge body 11 wraps the tank body, and under the impact of suspended matters, the mesh sponge body 11 is favorable for slowing down the impact force, so that the tank body is effectively protected.
During the use, 11 inner walls of mesh cavernosum and outer wall of tubular structure are the arc bellying, and the arc bellying of inner wall and the jar neck cooperation contact of the jar body block that mesh cavernosum 11 floats upwards and deviate from the jar body, and the arc bellying of outer wall forms the streamline structure, is favorable to reducing the resistance of ocean current, makes 1 atress of basic main part reduce, improves stability.
During the use, adopt the fastener to pass the landing leg board and be connected fixedly with basic main part 1's jar body bottom, simple to operate is swift, and bottom plate 21 center sets up the supported hole and cooperates with the support frame, during the installation, by support frame supporting bottom plate 21 and basic main part 1.
When the anti-scouring filter screen is used, the inclined steel cable of the anti-scouring filter screen 2 is bound with the cable hole of the bottom plate 21, the lock catches 42 at the two ends of the connecting piece 4 are hooked with the retaining ring 22 and the earrings on the single piles to form the anti-scouring filter screen 2 with a conical structure, and the larger end of the cross section of the anti-scouring filter screen 2 faces downwards.
During the use, the less one end in 2 cross-sections of anti-scour filter screen of toper structure is located upper portion, is located the node and connects vortex device 3 and dangles in anti-scour filter screen 2.
During the installation, span wire 32 and scour prevention filter screen 2's nodal connection makes in filter bowl 31 dangles and scour prevention filter screen 2, during the use, when scour prevention filter screen 2 is flowed through to the ocean current, vortex area 33 is carried out the disturbance to the ocean current along with the sea water is waved, the local water velocity of effectual reduction basis, with the superficial sand gathering of carrying in the rivers.
When the anti-scouring device is used, the threads with opposite directions at the two ends of the screw rod 41 are matched with the lock catches 42, after the lock catches 42 are hooked with the earrings of the single piles and the retaining rings 22 of the anti-scouring filter screen 2, the lock catches 42 at the two ends of the screw rod 41 are driven to be close to each other by knob force of the nuts 43, the inclined steel cable of the anti-scouring filter screen 2 is tensioned, and the anti-scouring filter screen 2 is in a tightened state.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (5)
1. The utility model provides a quick assembly and scour prevention's combination formula offshore wind power basis, characterized by: the anti-scouring device comprises a basic main body (1), an anti-scouring filter screen (2), a turbulence device (3) and a connecting piece (4); a lock catch (42) at one end of the connecting piece (4) is hooked with a snap ring (22) of the anti-scouring filter screen (2), a bottom plate (21) of the anti-scouring filter screen (2) is connected with a supporting leg (12) of the base main body (1), and a plurality of turbulence devices (3) are connected with the anti-scouring filter screen (2); the basic main body (1) is positioned in the anti-scouring filter screen (2), and the turbulence device (3) is suspended in the anti-scouring filter screen (2);
the basic main body (1) is of a hollow tank body structure with an opening at the upper end, a mesh sponge body (11) is wrapped outside the tank body, a plurality of inclined supporting legs (12) are arranged at the bottom of the tank body, a filler (13) is arranged inside the tank body, and a cover plate (14) is arranged at the opening end of the tank body;
one end of the supporting leg (12) is connected with a supporting leg plate, and a fastener penetrates through the supporting leg plate to be connected with the bottom of the tank body; a through hole is arranged at the edge of the cover plate (14), and a fastener penetrates through the through hole to be connected with the opening end of the tank body; the supporting legs (12) are connected with supporting leg holes of the bottom plate (21); a support hole is arranged in the center of the bottom plate (21);
the anti-scouring filter screen (2) is a hollowed-out conical net interwoven by an annular steel cable and an oblique steel cable, the oblique steel cable positioned at the bottom of the hollowed-out conical net with a larger cross section is connected with a cable hole at the edge of the bottom plate (21), and a retaining ring (22) is arranged at the top edge of the hollowed-out conical net with a smaller cross section;
the node where the annular steel cable and the inclined steel cable of the anti-scouring filter screen (2) are interwoven is connected with the flow disturbing device (3);
the turbulence device (3) comprises a suspension cable (32) connected with the filter screen bowl (31) and a turbulence belt (33) connected with the bottom of the filter screen bowl (31), and the other end of the suspension cable (32) is connected with a node of the anti-scouring filter screen (2).
2. The fast-assembly and scour-prevention combined offshore wind power foundation of claim 1, wherein: jar body upper end diameter is less than jar body bottom diameter, is located jar body middle part and sets up the arc jar neck of indent, and mesh cavernosum (11) parcel is between jar body open end to jar body bottom.
3. The fast-assembly and scour-prevention combined offshore wind power foundation of claim 1, wherein: mesh cavernosum (11) are both ends open-ended tubular structure, and a section of thick bamboo inner wall and a section of thick bamboo outer wall are the arc bellying, and the arc bellying of a section of thick bamboo inner wall contacts with the jar neck of the jar body, and the arc bellying of a section of thick bamboo outer wall is tangent with jar body open end and jar body bottom.
4. The fast-assembly and scour-prevention combined offshore wind power foundation of claim 1, wherein: the connecting piece (4) comprises a lock catch (42) connected with two ends of the screw rod (41) and a nut (43) fixed in the middle of the screw rod (41), and the thread directions of two ends of the screw rod (41) are opposite.
5. The method for anchoring a fast assembling and scour protection combined offshore wind power foundation according to any one of claims 1 to 4, comprising the steps of:
s1, mounting support legs and a bottom plate, supporting the bottom plate (21) and the tank body of the basic main body (1) by a support frame, matching support holes in the bottom plate (21) with support columns of the support frame, supporting the bottom plate (21) by a support plate, and contacting the bottom of the tank body with the upper ends of the support columns;
s2, mounting support legs and a bottom plate, matching the lower ends of the support legs (12) with support leg holes of the bottom plate (21), and connecting the support legs (12) with the bottom of the tank body of the basic main body (1) through bolts; fully welding the lower end of the supporting leg (12) with a supporting leg hole of the bottom plate (21);
s3, filling, namely pouring the filler (13) into the tank body of the foundation main body (1), and filling quick-setting concrete; the filler (13) is concrete, lead block and rock or a mixture of the concrete, the lead block and the rock;
s4, mounting a cover plate, matching the cover plate (14) with a tank opening at the upper end of the tank body of the basic main body (1), and connecting and fixing a fastener with the tank opening through the cover plate (14);
s5, installing an anti-scouring filter screen, sleeving the anti-scouring filter screen (2) outside the foundation main body (1), wherein the bottom with a larger cross section faces downwards, and an inclined steel cable at the bottom of the anti-scouring filter screen (2) penetrates through a cable hole in the bottom plate (21) to be bound and connected with the inclined steel cable;
s6, hoisting, namely slowly sinking the foundation main body (1) into the pre-drilled seabed rock hole by adopting hoisting equipment, and enabling the bottom plate (21) to be in contact with the bottom of the rock hole;
or welding the monopile with the cover plate (14); the lock catches (42) at the two ends of the connecting piece (4) are respectively hooked with the retaining ring (22) and the earrings on the single piles, and the anti-scouring filter screen (2) is in a tight state by rotating the screw rod (41); after a suspension cable (32) of the turbulent flow device (3) is connected with a node of the scour prevention filter screen (2), the foundation main body (1) is slowly sunk into a submarine rock hole which is drilled in advance, and the bottom plate (21) is contacted with the bottom of the rock hole.
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| CN202110153064.5A CN112942405B (en) | 2021-02-04 | 2021-02-04 | Quickly-assembled and anti-scouring combined offshore wind power foundation and method |
| PCT/CN2022/071169 WO2022166535A1 (en) | 2021-02-04 | 2022-01-11 | Combined offshore wind power foundation capable of being quickly assembled and preventing scour, and method |
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| CN202110153064.5A CN112942405B (en) | 2021-02-04 | 2021-02-04 | Quickly-assembled and anti-scouring combined offshore wind power foundation and method |
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| WO2022166535A1 (en) * | 2021-02-04 | 2022-08-11 | 中国长江三峡集团有限公司 | Combined offshore wind power foundation capable of being quickly assembled and preventing scour, and method |
| CN114277832B (en) * | 2022-01-13 | 2022-09-20 | 南京工业大学 | Offshore wind turbine pile foundation anti-scouring energy dissipation device and installation method thereof |
| CN114575390B (en) * | 2022-04-02 | 2024-04-09 | 广东粤电湛江风力发电有限公司 | Offshore wind power single pile scour protection bottom based on junked tires |
| CN115217144B (en) * | 2022-07-06 | 2023-12-26 | 江苏天能海洋重工有限公司 | Multi-functional stable offshore wind power generation foundation pile |
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