An underground foundation structure for installing offshore wind power equipment

Abstract

The present invention discloses an underground foundation structure for installing offshore wind power equipment, which includes a bearing platform, the bearing platform includes a platform body, a sealing head is installed at the center of the platform body; a first supporting mechanism, the first supporting mechanism is installed at the bottom of the bearing platform, the first supporting mechanism includes a center pile, the top of the center pile is connected to a connecting seat, the top of the connecting seat is connected to a sealing ring, and the bottom of the center pile is connected to a straight pile. The technical problem to be solved by the present invention is that the existing underground foundation structure for installing offshore wind power equipment has poor stability in supporting the offshore wind power equipment during use, which easily causes excessive displacement or tilt of the tower and cabin of the offshore wind power generation equipment, increases structural fatigue and safety hazards, and unstable support affects the normal tracking of wind direction of the wind power generation equipment, reduces wind energy capture efficiency, and reduces power generation.

Description

Technical Field

[0001] The invention relates to the technical field of offshore wind power generation, in particular to an underground foundation structure for installing offshore wind power equipment. Background Art

[0002] Offshore wind power generation is mainly achieved by wind turbines, which are a type of wind power equipment. When a wind turbine is installed at sea, its bottom needs to be supported. The bottom of this supporting structure is installed in the seabed, so that the wind turbine can be stably installed at sea. The offshore wind turbine needs to withstand the wind force in the main wind direction. The wind turbine transmits the force downward to the underground pile foundation structure, so that the wind force borne by the pile foundation structure is much greater than the force of water flow and waves, which can easily cause the pile foundation to be unstable, so the pile structure of the underground foundation needs to have the ability to provide stable support.

[0003] The offshore wind power multi-pile foundation with Chinese patent application number 202111088992.4 includes multiple pile foundations, a cap and a wind turbine. The multiple pile foundations are arranged at intervals, and the top of each pile foundation is connected to the bottom of the cap. The centers of the bottom ends of the multiple pile foundations are located on the same horizontal plane and are distributed along the circumference of the first ellipse. The wind turbine is installed on the top of the cap. The wind turbine includes an impeller, and the extension direction of the rotation centerline of the impeller is the first direction, and the major axis of the first ellipse extends along the first direction. The foundation structure forms a pile group foundation by arranging multiple pile foundations at the bottom. It is more suitable for complex or unstable seabed geological conditions.

[0004] A pile group foundation is a pile foundation system consisting of multiple piles that are closely arranged and connected together by a cap, usually precast concrete piles, steel piles or piles of other materials. The cap is a horizontal reinforced concrete slab set on the top of the piles to evenly distribute the load of the wind turbine tower above to all the piles. The pile group effect enables the entire foundation system to more effectively resist vertical loads and horizontal loads, such as wind and wave impact.

[0005] During use, the existing underground foundation structure for installing offshore wind power equipment has poor stability in supporting the offshore wind power equipment, which can easily cause excessive displacement or tilt of the tower and nacelle of the offshore wind power equipment, increasing structural fatigue and safety hazards. In addition, unstable support will affect the normal tracking of wind direction by the wind power equipment, reduce wind energy capture efficiency, and reduce power generation. Summary of the invention

[0006] The technical problem to be solved by the present invention is that the existing underground foundation structure for installing offshore wind power equipment has poor stability in supporting the offshore wind power equipment during use, which can easily cause excessive displacement or tilt of the tower and nacelle of the offshore wind power generation equipment, increasing structural fatigue and safety hazards, and unstable support will affect the normal tracking of wind direction by the wind power generation equipment, reduce wind energy capture efficiency, and reduce power generation.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an underground foundation structure for installing offshore wind power equipment, comprising:

[0008] A bearing platform, the bearing platform comprising a platform body, a sealing head is installed at the center of the platform body;

[0009] A first supporting mechanism, the first supporting mechanism is installed at the bottom of the bearing platform, the first supporting mechanism comprises a central pile, the top of the central pile is connected to a connecting seat, the top of the connecting seat is connected to a sealing ring, and the bottom of the central pile is connected to a straight pile;

[0010] Second support mechanisms, the number of the second support mechanisms is several and they are installed on the surface of the bearing platform, the second support mechanisms are distributed around the circumference of the first support mechanism, the second support mechanisms include inclined support piles, and the bottom of the inclined support piles is installed with inclined piles;

[0011] A connecting mechanism, the connecting mechanism is installed on the surface of the first supporting mechanism and connected to the surface of the second supporting mechanism;

[0012] A reinforcing mechanism, wherein the reinforcing mechanism is sleeved on the surface of the second supporting mechanism;

[0013] An energy absorbing mechanism, wherein the energy absorbing mechanism is mounted on the second supporting mechanism, and the reinforcing mechanism supports the bottom of the energy absorbing mechanism;

[0014] The elastic connecting rings are in a plurality and are sleeved on the top of the surface of the second supporting mechanism.

[0015] As a preferred solution of the underground foundation structure for installing offshore wind power equipment described in the present invention, a mounting seat is fixedly connected to the top of the platform, and the bottom of the sealing head passes through the sealing ring and extends into the connecting seat.

[0016] As a preferred solution of the underground foundation structure for installing offshore wind power equipment described in the present invention, the center pile, the connecting seat and the straight pile are all provided with casting cavities, a pipe connected to the casting cavity is installed on the surface of the center pile, a valve is installed on the top of the pipe, a fixing part is sleeved on the surface of the pipe, the fixing part is installed on the surface of the platform, and reinforcing ribs are provided at the connection between the center pile and the connecting seat.

[0017] As a preferred solution of the underground foundation structure for installing offshore wind power equipment described in the present invention, wherein: a support platform is sleeved on the surface of the straight-inserted pile, a conical head is connected to the bottom of the straight-inserted pile, a mounting rod is fixedly connected to the top of the conical head, a plurality of mounting sleeves are sleeved on the surface of the mounting rod, a cross bar is connected to the surface of the mounting sleeve, an end of the cross bar away from the mounting rod is connected to a triangular clamp, the triangular clamp penetrates to the surface of the straight-inserted pile, a connecting rod is installed on the top of the mounting rod, an inclined rod is installed on the surface of the connecting rod, an end of the inclined rod away from the connecting rod is connected to the inner wall of the center pile, a multi-head support rod is connected to the top of the connecting rod, a support ring is installed on the top of the multi-head support rod, and the support ring is installed on the inner wall of the center pile.

[0018] As a preferred solution of the underground foundation structure for installing offshore wind power equipment described in the present invention, the inclined support piles and the oblique inserted piles are both provided with steel bar structures, the top of the inclined support piles is connected to a fixing rod, the top of the fixing rod is fixedly connected to a fixing seat, and the fixing seat is sleeved on the surface of the platform.

[0019] As a preferred solution of the underground foundation structure for installing offshore wind power equipment described in the present invention, a bent rod is fixedly connected to the top of the fixing seat, and an arc-shaped support is fixedly connected to one end of the bent rod away from the fixing seat.

[0020] As a preferred solution of the underground foundation structure for installing offshore wind power equipment described in the present invention, the connecting mechanism includes a first arc plate and a second arc plate, the first arc plate is installed on the surface of the center pile, the second arc plate is installed on the surface of the inclined support pile, and a plurality of transverse reinforcements are installed on the opposite side of the first arc plate and the second arc plate, and an X-shaped reinforcement is installed on the opposite side of the transverse reinforcement.

[0021] As a preferred solution of the underground foundation structure for installing offshore wind power equipment described in the present invention, the reinforcement mechanism includes a stabilizing platform sleeved on the surface of the inclined support pile, a plurality of first auxiliary piles are fixedly connected to the bottom of the stabilizing platform, a second auxiliary pile is provided at the bottom of the first auxiliary pile, and the first auxiliary piles and the second auxiliary piles surround the oblique piles.

[0022] As a preferred solution of the underground foundation structure for installing offshore wind power equipment described in the present invention, the energy absorbing mechanism includes an energy absorbing shell, an oil chamber is opened inside the energy absorbing shell, a spring is installed at the bottom of the inner cavity of the oil chamber, a piston head is fixedly connected to the top of the spring, a piston rod movably connected to the inner wall of the energy absorbing shell is provided on the top of the piston head, a connecting part is installed on the top of the piston rod, a rotating part is rotatably connected inside the connecting part, one end of the rotating part is rotatably connected to an arc-shaped connecting head, the arc-shaped connecting head is installed on the surface of the inclined support pile, and a support seat is installed on the surface of the energy absorbing shell.

[0023] As a preferred solution of the underground foundation structure for installing offshore wind power equipment described in the present invention, a sealing sleeve is installed on the energy absorbing shell and is sleeved on the surface of the piston rod. The surface of the energy absorbing shell is fixedly connected to an oil tank. A rubber sleeve is provided inside the oil tank. The rubber sleeve is installed on the surface of the energy absorbing shell. A flow regulating valve is installed on the surface of the energy absorbing shell. The flow regulating valve is respectively connected to the oil chamber and the rubber sleeve.

[0024] Beneficial effects of the present invention:

[0025] 1. The present invention can facilitate the support of offshore wind power equipment by setting a bearing platform. The offshore wind power equipment is installed on the mounting seat to achieve the fixation of the platform body and the offshore wind power equipment. The platform body is fixed to the top of the connecting seat by bolts and nuts to achieve the fixation of the platform body and the connecting seat. The sealing head penetrates into the connecting seat, and the sealing ring is attached to the bottom of the platform body to seal the connection.

[0026] 2. The present invention can facilitate the stable support of the bottom of the bearing platform by setting the first supporting mechanism, so as to realize the support of the offshore wind power equipment. The bottom of the straight pile passes through the seabed, and the supporting platform is on the seabed to realize the fixation of the center pile. The center pile supports the connecting seat and the platform body. Several triangular clamps on the surface of the straight pile are inserted into the seabed to increase the friction between the seabed and the straight pile and improve the stability of the straight pile installation. The cross bar and the installation sleeve support the triangular clamp to prevent deformation and damage. The installation rod fixes several installation sleeves. The top of the installation sleeve is respectively provided with a connecting rod, an inclined rod and a multi-head support rod. The inclined rod and the connecting rod support the inner wall of the center pile to improve the strength of the center pile. A supporting ring is installed on the top of the multi-head support rod. The multi-head support rod and the supporting ring also strengthen the inside of the center pile. When the first supporting mechanism is installed, the air inside the casting cavity is extracted through the valve and the pipeline to make it inside. Negative pressure is generated inside the casting cavity. After negative pressure is generated inside the casting cavity, the pressure at the connection between the sealing ring and the platform body is increased to further improve the sealing effect. After the negative pressure is extracted, the bolts and nuts at the connection between the connecting seat and the platform body are tightened for a second time. After the tightening is completed, the casting material is injected into the casting cavity through the valve and the pipeline to fill the inside of the connecting seat, the center pile and the straight pile. The casting material is one of concrete, cement slurry, mortar and resin. By pouring the material, the deadweight of the first supporting mechanism can be significantly increased, thereby improving its pull-out resistance and anti-overturning stability, which is particularly important for resisting the vertical and horizontal loads of the superstructure. The casting material can enhance the integrity and continuity of the pile body center pile and the straight pile, so that the load can be transferred more evenly when subjected to force, reduce stress concentration, and improve the safety of the structure. The poured material can protect the inside of the center pile and the straight pile from seawater erosion and increase its service life.

[0027] 3. The present invention provides a plurality of second support mechanisms, which together with the first support mechanism can form a three-dimensional layout for supporting offshore wind power equipment, thereby improving the stability and bearing capacity of the entire structure. The fixed seat is fixed on the surface of the platform to fix the fixed rod and the bent rod. The bent rod and the arc-shaped support member support the surface of the offshore wind power equipment to prevent the offshore wind power equipment from shaking on the top of the bearing platform. The oblique piles are inserted into the seabed to fix the inclined support piles. The inclined support piles support the surrounding area of ​​the bearing platform and provide multiple support points to increase the bearing stability of the bearing platform. A steel bar structure is provided inside the inclined support piles and the oblique piles. The steel bar structure improves the use strength of the inclined support piles and the oblique piles to avoid damage.

[0028] 4. The present invention can strengthen the interaction between the second supporting mechanism and the first supporting mechanism by setting a connecting mechanism to form a more stable three-dimensional spatial structural system. The first curved plate is installed on the central pile, and the second curved plate is installed on the inclined supporting pile. The transverse reinforcement and the X-shaped reinforcement connect the first curved plate and the second curved plate so that the second supporting mechanism and the first supporting mechanism can work together. The elastic connecting ring sleeved on the top of the surface of the second supporting mechanism connects a number of surrounding inclined supporting piles so that these inclined supporting piles can support each other in a coordinated manner, further increasing stability.

[0029] 5. The present invention can increase the connection stability between the oblique piles and the seabed by setting a reinforcing mechanism. The first auxiliary pile and the second auxiliary pile are inserted into the seabed to fix the stabilizing platform. The inclined support piles are located inside the stabilizing platform, so that the stabilizing platform can limit the inclined support piles and the oblique piles, thereby enhancing the stability of the bottom of the second supporting mechanism.

[0030] 6. The present invention can effectively absorb and dissipate the vibration energy caused by wind, waves, water flow and equipment operation by arranging an energy-absorbing mechanism. These vibration energies are transmitted to the energy-absorbing mechanism through the bearing platform and the second supporting mechanism in turn, thereby reducing the impact of these dynamic loads on the superstructure and helping to protect the precision components of the wind turbine equipment. When encountering sudden external impacts or irregular waves, the energy-absorbing mechanism can respond quickly and buffer these forces, thereby improving stability and reducing the risk of displacement and tilt. At the same time, by reducing structural vibration, fatigue damage caused by long-term vibration can be reduced, and the maintenance frequency and maintenance cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the main axonometric view of the present invention;

[0032] Figure 2 It is a bottom-up axonometric view of the present invention;

[0033] Figure 3 It is the main axonometric view of the bearing platform of the present invention;

[0034] Figure 4 It is a front axonometric view of the first supporting mechanism of the present invention;

[0035] Figure 5 A bottom-up isometric view of the first support mechanism of the present invention;

[0036] Figure 6 It is a front and cross-sectional isometric view of the first support mechanism of the present invention;

[0037] Figure 7 For the present invention Figure 6 A magnified view of middle;

[0038] Figure 8 It is a front view partial cross-sectional axonometric diagram of the bearing platform and the first supporting mechanism of the present invention;

[0039] Fig. 9 It is a front axonometric view of the second supporting mechanism of the present invention;

[0040] Fig.10 It is a partial cross-sectional view of the front view of the second supporting mechanism of the present invention;

[0041] Fig.11 It is a front axonometric view of the connection mechanism of the present invention;

[0042] Fig.12 It is a front axonometric view of the reinforcing mechanism of the present invention;

[0043] Fig.13 It is a bottom-up axonometric view of the reinforcing mechanism of the present invention;

[0044] Fig.14 It is a main axonometric view of the energy absorbing mechanism of the present invention;

[0045] Fig.15 It is a front sectional view of the energy absorbing mechanism of the present invention.

[0046] In the figure: 100, bearing platform; 101, platform body; 102, sealing head; 103, mounting seat; 200, first supporting mechanism; 201, center pile; 202, sealing ring; 203, connecting seat; 204, casting cavity; 205, valve; 206, fixing piece; 207, pipeline; 208, straight pile; 209, triangular clamp; 210, supporting platform; 211, reinforcing rib; 212, mounting rod; 213, oblique rod; 214, multi-head support rod; 215, supporting ring; 216, connecting rod; 217, mounting sleeve; 218, cross bar; 219, conical head; 300, second supporting mechanism; 301, inclined supporting pile; 302, oblique pile; 303, fixing rod; 304, fixing seat; 305 , bent rod; 306, arc-shaped support member; 307, steel bar structure; 400, connecting mechanism; 401, first arc-shaped plate; 402, second arc-shaped plate; 403, transverse reinforcement member; 404, X-shaped reinforcement member; 500, reinforcement mechanism; 501, stabilizing platform; 502, first auxiliary pile; 503, second auxiliary pile; 600, energy absorption mechanism; 601, energy absorption shell; 602, oil tank; 603, support seat; 604, piston rod; 605, arc-shaped connector; 606, rotating member; 607, connector; 608, sealing sleeve; 609, spring; 610, oil chamber; 611, piston head; 612, rubber sleeve; 613, flow control valve; 700, elastic connecting ring; 800, offshore wind power equipment. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0048] Embodiment 1, as Figure 1-15 As shown, this embodiment provides an underground foundation structure for installing offshore wind power equipment, including a bearing platform 100 . The bearing platform 100 includes a platform body 101 . A sealing head 102 is installed at the center of the platform body 101 .

[0049] Furthermore, a mounting seat 103 is fixedly connected to the top of the platform 101 , and the bottom of the sealing head 102 passes through the sealing ring 202 and extends into the connecting seat 203 .

[0050] By setting up the supporting platform 100, it is convenient to support the offshore wind power equipment 800. The offshore wind power equipment 800 is installed on the mounting seat 103 to fix the platform 101 and the offshore wind power equipment 800. The platform 101 is fixed to the top of the connecting seat 203 by bolts and nuts to fix the platform 101 and the connecting seat 203. The sealing head 102 penetrates into the connecting seat 203, and the sealing ring 202 is attached to the bottom of the platform 101 to seal the connection.

[0051] Furthermore, it also includes a first supporting mechanism 200, which is installed at the bottom of the supporting platform 100. The first supporting mechanism 200 includes a center pile 201, the top of the center pile 201 is connected to a connecting seat 203, the top of the connecting seat 203 is connected to a sealing ring 202, and the bottom of the center pile 201 is connected to a straight pile 208.

[0052] Furthermore, the connection seat 203 is installed at the bottom of the platform 101, and the sealing ring 202 is located on the opposite side of the connection seat 203 and the platform 101 to seal the connection.

[0053] Furthermore, a casting cavity 204 is opened inside the center pile 201, the connecting seat 203 and the straight pile 208, a pipe 207 connected to the casting cavity 204 is installed on the surface of the center pile 201, a valve 205 is installed on the top of the pipe 207, a fixing part 206 is sleeved on the surface of the pipe 207, and the fixing part 206 is installed on the surface of the platform 101, and a reinforcing rib 211 is provided at the connection point between the center pile 201 and the connecting seat 203.

[0054] Furthermore, a support platform 210 is provided on the surface of the straight pile 208, a conical head 219 is connected to the bottom of the straight pile 208, a mounting rod 212 is fixedly connected to the top of the conical head 219, a plurality of mounting sleeves 217 are provided on the surface of the mounting rod 212, a cross bar 218 is connected to the surface of the mounting sleeve 217, an end of the cross bar 218 away from the mounting rod 212 is connected to a triangular clamp 209, the triangular clamp 209 penetrates to the surface of the straight pile 208, a connecting rod 216 is installed on the top of the mounting rod 212, an inclined rod 213 is installed on the surface of the connecting rod 216, an end of the inclined rod 213 away from the connecting rod 216 is connected to the inner wall of the center pile 201, a multi-head support rod 214 is connected to the top of the connecting rod 216, a support ring 215 is installed on the top of the multi-head support rod 214, and the support ring 215 is installed on the inner wall of the center pile 201.

[0055] By setting the first support mechanism 200, it is convenient to stably support the bottom of the bearing platform 100, so as to support the offshore wind power equipment 800. The bottom of the straight pile 208 penetrates under the seabed, and the support platform 210 is on the seabed to fix the center pile 201. The center pile 201 supports the connecting seat 203 and the platform body 101. Several triangular clamps 209 on the surface of the straight pile 208 are inserted into the seabed to increase the friction between the seabed and the straight pile 208, thereby improving the stability of the installation of the straight pile 208. The cross bar 218 and the installation sleeve 2 17 supports the triangular chuck 209 to prevent it from deformation and damage, the mounting rod 212 fixes several mounting sleeves 217, and the top of the mounting sleeve 217 is respectively provided with a connecting rod 216, an inclined rod 213 and a multi-head support rod 214, the inclined rod 213 and the connecting rod 216 support the inner wall of the center pile 201 to improve the strength of the center pile 201, and a support ring 215 is installed on the top of the multi-head support rod 214, and the multi-head support rod 214 and the support ring 215 also strengthen the inside of the center pile 201. When the first support mechanism 200 is installed, the valve 205 and pipeline 207 extract the air inside the casting cavity 204 to generate negative pressure inside it. After the negative pressure is generated inside the casting cavity 204, the pressure at the connection between the sealing ring 202 and the platform 101 is increased to further improve the sealing effect. After the negative pressure is extracted, the bolts and nuts at the connection between the connecting seat 203 and the platform 101 are tightened for the second time. After the tightening is completed, the casting material is injected into the casting cavity 204 through the valve 205 and pipeline 207 to fill the inside of the connecting seat 203, the center pile 201 and the straight pile 208. The casting material is concrete, One of cement slurry, mortar and resin can significantly increase the deadweight of the first support mechanism 200 by pouring materials, thereby improving its pull-out resistance and anti-overturning stability, which is particularly important for resisting the vertical load and horizontal load of the superstructure. The pouring material can enhance the integrity and continuity of the pile body center pile 201 and the straight pile 208, so that the load can be transferred more evenly when subjected to force, reduce stress concentration, and improve the safety of the structure. The poured material can protect the interior of the center pile 201 and the straight pile 208 from seawater erosion and increase its service life.

[0056] Furthermore, it also includes a second support mechanism 300. There are several second support mechanisms 300 installed on the surface of the supporting platform 100. The second support mechanisms 300 are distributed around the circumference of the first support mechanism 200. The second support mechanism 300 includes an inclined support pile 301, and an inclined pile 302 is installed at the bottom of the inclined support pile 301.

[0057] Furthermore, a steel structure 307 is provided inside the inclined support pile 301 and the inclined inserted pile 302 . A fixing rod 303 is connected to the top of the inclined support pile 301 . A fixing seat 304 is fixedly connected to the top of the fixing rod 303 . The fixing seat 304 is sleeved on the surface of the platform 101 .

[0058] Furthermore, a bent rod 305 is fixedly connected to the top of the fixing seat 304 , and an end of the bent rod 305 away from the fixing seat 304 is fixedly connected to an arc-shaped support member 306 .

[0059] By setting up a plurality of second supporting mechanisms 300, a three-dimensional layout can be formed with the first supporting mechanism 200 to support the offshore wind power equipment 800, thereby improving the stability and bearing capacity of the entire structure. The fixing seat 304 is fixed on the surface of the platform 101 to fix the fixing rod 303 and the bent rod 305. The bent rod 305 and the arc-shaped support member 306 support the surface of the offshore wind power equipment 800 to prevent the offshore wind power equipment 800 from shaking on the top of the bearing platform 100. The oblique piles 302 are inserted into the seabed to fix the inclined support piles 301. The inclined support piles 301 support the surrounding area of ​​the bearing platform 100, provide multiple support points, and increase the bearing stability of the bearing platform 100. A steel structure 307 is set inside the inclined support piles 301 and the oblique piles 302. The steel structure 307 improves the use strength of the inclined support piles 301 and the oblique piles 302 to avoid damage.

[0060] Furthermore, it also includes a connecting mechanism 400 , which is installed on the surface of the first supporting mechanism 200 and connected to the surface of the second supporting mechanism 300 .

[0061] Furthermore, the connecting mechanism 400 includes a first curved plate 401 and a second curved plate 402, the first curved plate 401 is installed on the surface of the center pile 201, the second curved plate 402 is installed on the surface of the inclined support pile 301, and a plurality of transverse reinforcements 403 are installed on opposite sides of the first curved plate 401 and the second curved plate 402, and an X-shaped reinforcement 404 is installed on the opposite side of the transverse reinforcement 403.

[0062] Furthermore, it also includes a plurality of elastic connecting rings 700 , which are sleeved on the top of the surface of the second supporting mechanism 300 .

[0063] By setting up the connecting mechanism 400, the interaction between the second supporting mechanism 300 and the first supporting mechanism 200 can be strengthened to form a more stable three-dimensional spatial structural system. The first curved plate 401 is installed on the central pile 201, and the second curved plate 402 is installed on the inclined supporting pile 301. The transverse reinforcement 403 and the X-shaped reinforcement 404 connect the first curved plate 401 and the second curved plate 402, so that the second supporting mechanism 300 and the first supporting mechanism 200 can work together. The elastic connecting ring 700 sleeved on the top of the surface of the second supporting mechanism 300 connects a number of surrounding inclined supporting piles 301, so that these inclined supporting piles 301 can support each other, further increasing stability.

[0064] Furthermore, it also includes a reinforcing mechanism 500 , which is sleeved on the surface of the second supporting mechanism 300 .

[0065] Furthermore, the reinforcing mechanism 500 includes a stabilizing platform 501 sleeved on the surface of the inclined support pile 301, a plurality of first auxiliary piles 502 are fixedly connected to the bottom of the stabilizing platform 501, a second auxiliary pile 503 is provided at the bottom of the first auxiliary pile 502, and the first auxiliary piles 502 and the second auxiliary piles 503 surround the inclined pile 302.

[0066] By setting up the reinforcing mechanism 500, the connection stability between the oblique pile 302 and the seabed can be increased. The first auxiliary pile 502 and the second auxiliary pile 503 are inserted into the seabed to fix the stabilizing platform 501. The inclined support pile 301 is located inside the stabilizing platform 501, so that the stabilizing platform 501 can limit the inclined support pile 301 and the oblique pile 302, thereby enhancing the stability of the bottom of the second supporting mechanism 300.

[0067] Furthermore, it also includes an energy absorbing mechanism 600 , which is installed on the second supporting mechanism 300 , and the reinforcing mechanism 500 supports the bottom of the energy absorbing mechanism 600 .

[0068] Furthermore, the energy absorbing mechanism 600 includes an energy absorbing shell 601, an oil chamber 610 is opened inside the energy absorbing shell 601, a spring 609 is installed at the bottom of the inner cavity of the oil chamber 610, a piston head 611 is fixedly connected to the top of the spring 609, a piston rod 604 movably connected to the inner wall of the energy absorbing shell 601 is provided on the top of the piston head 611, a connecting piece 607 is installed on the top of the piston rod 604, a rotating piece 606 is rotatably connected inside the connecting piece 607, one end of the rotating piece 606 is rotatably connected to an arc-shaped connecting head 605, the arc-shaped connecting head 605 is installed on the surface of the inclined support pile 301, and a support seat 603 is installed on the surface of the energy absorbing shell 601.

[0069] Furthermore, a sealing sleeve 608 is installed on the energy absorbing shell 601 and is sleeved on the surface of the piston rod 604. The surface of the energy absorbing shell 601 is fixedly connected to the oil tank 602. A rubber sleeve 612 is provided inside the oil tank 602. The rubber sleeve 612 is installed on the surface of the energy absorbing shell 601. A flow regulating valve 613 is installed on the surface of the energy absorbing shell 601. The flow regulating valve 613 is connected to the oil chamber 610 and the rubber sleeve 612 respectively.

[0070] Furthermore, the support seat 603 is installed on the top of the stabilizing platform 501, and the stabilizing platform 501 is movably mounted on the surface of the inclined support pile 301 and does not slide along with the inclined support pile 301. The stabilizing platform 501 is installed on the seabed to limit the inclined support pile 301 to prevent it from shifting. When the inclined support pile 301 is shaken by external force, the energy absorbing mechanism 600 is driven to work and absorb energy.

[0071] By providing the energy absorbing mechanism 600, the vibration energy caused by wind, waves, water flow and equipment operation can be effectively absorbed and dissipated. These vibration energies are transmitted to the energy absorbing mechanism 600 through the supporting platform 100 and the second supporting mechanism 300 in turn, thereby reducing the impact of these dynamic loads on the superstructure, and helping to protect the precision components of the wind turbine equipment. When encountering sudden external impacts or irregular waves, the energy absorbing mechanism 600 can respond quickly and buffer these forces, thereby improving stability and reducing the risk of displacement and tilt. At the same time, by reducing structural vibration, fatigue damage caused by long-term vibration can be reduced, and the maintenance frequency and maintenance cost can be reduced.

[0072] When the energy absorbing mechanism 600 is working, the inclined support pile 301 drives the rotating member 606 to rotate through the arc-shaped connecting head 605, and the rotating member 606 drives the connecting member 607 to rotate. During the rotation of the connecting member 607, the piston rod 604 is squeezed, and the piston rod 604 moves inside the oil chamber 610 and the sealing sleeve 608. The sealing sleeve 608 seals the connection between the oil chamber 610 and the piston rod 604 to prevent the hydraulic oil inside the oil chamber 610 from leaking. The piston rod 604 drives the piston head 611 to squeeze the spring 609, and the spring 609 deforms to absorb heat from the vibration energy and converts the kinetic energy into The hydraulic oil in the oil chamber 610 enters the rubber sleeve 612 through the flow regulating valve 613. The rubber sleeve 612 expands after the hydraulic oil enters, and absorbs the transmitted kinetic energy. The oil tank 602 limits the deformation of the rubber sleeve 612, and protects the rubber sleeve 612 to avoid damage. The flow regulating valve 613 controls the amount of oil entering the rubber sleeve 612, determines the difficulty of oil flow, and thus controls the size of the damping force. When the piston rod 604 is reset, the hydraulic oil flows back to the inner cavity of the oil chamber 610 to absorb the subsequent kinetic energy.

[0073] The flow regulating valve 613 accurately controls the rate at which the hydraulic oil enters and exits the oil chamber 610, and uses a suitable damping coefficient to ensure that positive damping is provided at various vibration frequencies, that is, vibration energy is absorbed rather than amplified.

[0074] When hydraulic oil flows into the rubber sleeve 612, the rubber sleeve 612 will expand due to the increase in internal pressure. This expansion process is accompanied by energy absorption. The amount of hydraulic oil flowing in is directly related to the degree of expansion of the rubber sleeve 612, which means that it can store more energy. This process is similar to an elastomer accumulator, which converts mechanical energy into potential energy within the rubber sleeve 612. The hydraulic oil itself has a certain viscosity. When it flows inside the rubber sleeve 612, it will generate internal friction due to the viscosity, thereby consuming part of the kinetic energy and converting it into heat energy. This energy conversion process effectively slows down the transmission of vibration and plays a damping role.

[0075] Embodiment 2, as Figure 1-15 As shown, as a second embodiment of the present invention, this embodiment provides a construction method for an underground foundation structure for installing offshore wind power equipment, comprising the following steps:

[0076] Conduct detailed seabed geological survey at the selected sea area to determine the specific installation location and depth of the foundation;

[0077] According to the exploration results, level the seabed terrain, remove obstacles, and ensure the accuracy and stability of foundation installation;

[0078] Install the first support mechanism 200, use a professional pile-driving ship or lifting equipment to accurately place the center pile 201 and its connecting seat 203, and the straight pile 208 assembly at the predetermined position;

[0079] Ensure that the central pile 201 is driven vertically into the seabed and that the straight piles 208 are driven deep into the seabed to provide a stable support;

[0080] Accurately install the carrying platform 100 on the connecting seat 203 and ensure that all connections are firm;

[0081] The connection seat 203 is connected to the platform 101 by bolts, and the sealing ring 202 ensures the sealing performance;

[0082] The casting cavity 204 inside the central pile 201, the connecting seat 203 and the straight pile 208 is evacuated through the pipe 207 to enhance the sealing effect;

[0083] After vacuum treatment, the casting is injected through the pipe 207 and waited for it to solidify, thereby enhancing the stability and load-bearing capacity of the structure;

[0084] A second support mechanism 300 is installed around the central pile, and its bottom is fixed with a reinforcing mechanism 500 to enhance stability;

[0085] Installing the connection mechanism 400 to strengthen the connection between the first support mechanism 200 and the second support mechanism 300;

[0086] Install an elastic connecting ring 700 on the top of the second supporting mechanism 300 to enhance the connection and stability between the components;

[0087] The energy absorbing mechanism 600 is installed on the second supporting mechanism 300, supported by the reinforcing mechanism 500, and the flow regulating valve 613 is adjusted to meet the expected damping requirements;

[0088] Conduct a comprehensive inspection of the entire infrastructure to ensure that all joints are tight, well sealed and leak-free;

[0089] Verify whether the bearing capacity and stability of the foundation structure meet the design requirements;

[0090] Finally, the offshore wind power equipment 800 is installed on the mounting seat 103 of the supporting platform 100 to complete the entire installation process.

Claims

1. An underground foundation structure for installing offshore wind power equipment, characterized in that: include, A carrying platform (100), the carrying platform (100) comprising a platform body (101), a sealing head (102) being installed at the center of the platform body (101); A first supporting mechanism (200), the first supporting mechanism (200) being installed at the bottom of the carrying platform (100), the first supporting mechanism (200) comprising a central pile (201), the top of the central pile (201) being connected to a connecting seat (203), the top of the connecting seat (203) being connected to a sealing ring (202), and the bottom of the central pile (201) being connected to a straight-insertion pile (208); A second support mechanism (300), wherein the number of the second support mechanisms (300) is several and the second support mechanisms (300) are installed on the surface of the bearing platform (100), the second support mechanisms (300) are distributed around the circumference of the first support mechanism (200), and the second support mechanisms (300) comprise inclined support piles (301), and the bottom of the inclined support piles (301) are installed with oblique insertion piles (302); A connecting mechanism (400), wherein the connecting mechanism (400) is installed on the surface of the first supporting mechanism (200) and connected to the surface of the second supporting mechanism (300); A reinforcing mechanism (500), wherein the reinforcing mechanism (500) is sleeved on the surface of the second supporting mechanism (300); An energy absorbing mechanism (600), wherein the energy absorbing mechanism (600) is mounted on the second supporting mechanism (300), and the reinforcing mechanism (500) supports the bottom of the energy absorbing mechanism (600); Elastic connecting rings (700), the elastic connecting rings (700) being in plurality and sleeved on the top of the surface of the second supporting mechanism (300); The top of the platform (101) is fixedly connected to a mounting seat (103), and the bottom of the sealing head (102) passes through the sealing ring (202) and extends into the connecting seat (203); The center pile (201), the connection seat (203) and the straight pile (208) are all provided with a casting cavity (204). A pipe (207) communicating with the casting cavity (204) is installed on the surface of the center pile (201). A valve (205) is installed on the top of the pipe (207). A fixing piece (206) is sleeved on the surface of the pipe (207). The fixing piece (206) is installed on the surface of the platform (101). A reinforcing rib (211) is provided at the connection point between the center pile (201) and the connection seat (203); The surface of the straight-inserted pile (208) is sleeved with a support platform (210), the bottom of the straight-inserted pile (208) is connected to a conical head (219), the top of the conical head (219) is fixedly connected to a mounting rod (212), the surface of the mounting rod (212) is sleeved with a plurality of mounting sleeves (217), the surface of the mounting sleeve (217) is connected to a cross bar (218), one end of the cross bar (218) away from the mounting rod (212) is connected to a triangular clamp (209), and the triangular clamp (209) is connected to the mounting rod (212). The connecting rod (216) is inserted into the surface of the straight pile (208), the top of the installation rod (212) is installed with a connecting rod (216), the surface of the connecting rod (216) is installed with an inclined rod (213), one end of the inclined rod (213) away from the connecting rod (216) is connected to the inner wall of the center pile (201), the top of the connecting rod (216) is connected with a multi-head support rod (214), the top of the multi-head support rod (214) is installed with a support ring (215), and the support ring (215) is installed on the inner wall of the center pile (201); The energy absorbing mechanism (600) comprises an energy absorbing shell (601), an oil chamber (610) is provided inside the energy absorbing shell (601), a spring (609) is installed at the bottom of the inner chamber of the oil chamber (610), a piston head (611) is fixedly connected to the top of the spring (609), a piston rod (604) movably connected to the inner wall of the energy absorbing shell (601) is provided on the top of the piston head (611), a connecting piece (607) is installed on the top of the piston rod (604), a rotating piece (606) is rotatably connected to the inside of the connecting piece (607), one end of the rotating piece (606) is rotatably connected to an arc-shaped connecting head (605), the arc-shaped connecting head (605) is installed on the surface of the inclined support pile (301), and a support seat (603) is installed on the surface of the energy absorbing shell (601).

2. The underground foundation structure for installing offshore wind power equipment according to claim 1, characterized in that: The inclined support pile (301) and the oblique insertion pile (302) are both provided with a steel bar structure (307) inside. The top of the inclined support pile (301) is connected to a fixing rod (303). The top of the fixing rod (303) is fixedly connected to a fixing seat (304). The fixing seat (304) is sleeved on the surface of the platform (101).

3. The underground foundation structure for installing offshore wind power equipment according to claim 2, characterized in that: A bent rod (305) is fixedly connected to the top of the fixed seat (304), and an end of the bent rod (305) away from the fixed seat (304) is fixedly connected to an arc-shaped support member (306).

4. The underground foundation structure for installing offshore wind power equipment according to claim 1, characterized in that: The connection mechanism (400) comprises a first curved plate (401) and a second curved plate (402), wherein the first curved plate (401) is mounted on the surface of a central pile (201), and the second curved plate (402) is mounted on the surface of an inclined support pile (301), and a plurality of transverse reinforcements (403) are mounted on opposite sides of the first curved plate (401) and the second curved plate (402), and an X-shaped reinforcement (404) is mounted on opposite sides of the transverse reinforcement (403).

5. The underground foundation structure for installing offshore wind power equipment according to claim 1, characterized in that: The reinforcing mechanism (500) comprises a stabilizing platform (501) sleeved on the surface of the inclined support pile (301), a plurality of first auxiliary piles (502) are fixedly connected to the bottom of the stabilizing platform (501), a second auxiliary pile (503) is provided at the bottom of the first auxiliary pile (502), and the first auxiliary pile (502) and the second auxiliary pile (503) surround the inclined insertion pile (302).

6. The underground foundation structure for installing offshore wind power equipment according to claim 1, characterized in that: The energy absorbing shell (601) is provided with a sealing sleeve (608) sleeved on the surface of the piston rod (604); the surface of the energy absorbing shell (601) is fixedly connected to an oil tank (602); a rubber sleeve (612) is provided inside the oil tank (602); the rubber sleeve (612) is installed on the surface of the energy absorbing shell (601); a flow regulating valve (613) is installed on the surface of the energy absorbing shell (601); the flow regulating valve (613) is respectively connected to the oil chamber (610) and the rubber sleeve (612).

Images