Scouring monitoring and protecting device for offshore wind power pile foundation

Abstract

The invention discloses a scouring monitoring and protecting device for an offshore wind power pile foundation, and relates to the technical field of offshore wind power pile foundations, the scouring monitoring and protecting device comprises a pile body, an auxiliary mechanism comprises a material storage shell, the bottom position of the outer wall of the material storage shell is fixedly sleeved with a first lantern ring, and a plurality of stabilizing frames are distributed at the top of the material storage shell at equal intervals; the bottom of the inner wall of the material storage shell is fixedly sleeved with a second lantern ring, a cover is installed on the top of the material storage shell, two symmetrical light supplementing lamps are installed on the top of the inner wall of the cover, a camera is installed on the top of the inner wall of the cover, and a cylindrical hole is formed in the top of the inner wall of the material storage shell. According to the technical scheme, automatic material supplementing can be provided for the gabion protection device used for the offshore wind power pile foundation, that is, when stone in the gabion device is scoured by ocean current and becomes smaller, stone supplementing can be conducted on the interior of a gabion in time, and therefore scouring of the ocean current on the sea to a pile body is avoided, and the service life of the wind power pile foundation is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of offshore wind power pile foundations, and in particular to a scour monitoring and protection device for offshore wind power pile foundations. Background Art

[0002] Offshore wind turbine pile foundation refers to the pile foundation structure used to support offshore wind turbines. It is an important component of wind turbines for generating wind power at sea. However, as time goes by, the wind turbine pile foundation that has been in the sea for a long time may be washed away by the ocean current and its surface may be eroded, thereby reducing the structural integrity and stability of the wind turbine pile foundation. Therefore, in order to reduce or reduce the occurrence of this situation, construction workers generally equip the installed wind turbine pile foundation with erosion monitoring and gabion protection devices to increase the service life of the wind turbine pile foundation.

[0003] In the existing technology, the existing scour monitoring and protection devices for offshore wind turbine pile foundations can provide a certain protection effect for the wind turbine pile foundation body and monitor the scouring of the protection device in real time during actual use, thereby improving the service life of the wind turbine pile foundation. However, they do not have the function of providing automatic material replenishment for the gabion protection device. When the stones in the gabion protection device are eroded and become smaller by the ocean current, if the stones inside the gabion cannot be replenished in time, the ocean current will begin to scour the surface of the wind turbine pile foundation body, causing damage to it. This will not only fail to improve the service life of the wind turbine pile foundation, but will also reduce the use efficiency of the protection device.

[0004] Therefore, we propose a scour monitoring and protection device for offshore wind power pile foundations in order to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a scour monitoring and protection device for offshore wind turbine pile foundations. The existing scour monitoring and protection devices for offshore wind turbine pile foundations do not have the function of providing automatic material replenishment for gabion protection devices. When the stones in the gabion protection devices are eroded and become smaller by sea currents, if the stones inside the gabion cannot be replenished in time, the sea currents at sea will begin to scour the surface of the wind turbine pile foundation body, causing damage to it. This not only fails to improve the service life of the wind turbine pile foundation, but also reduces the use efficiency of the protection device.

[0006] To achieve the above object, the present invention provides the following technical solution: a scour monitoring and protection device for offshore wind power pile foundation, comprising a pile body, on which an auxiliary mechanism is arranged;

[0007] The auxiliary mechanism includes a material storage shell, a first ring is fixedly sleeved on the bottom of the outer wall of the material storage shell, a plurality of stabilizing frames are equidistantly installed on the top of the material storage shell, a second ring is fixedly sleeved on the bottom of the inner wall of the material storage shell, an inspection hole is opened on the top of the inner wall of the material storage shell, a feeding hole is opened on the top of the inner wall of the material storage shell, a cover is installed on the top of the material storage shell, two symmetrical fill lights are installed on the top of the inner wall of the cover, a camera is installed on the top of the inner wall of the cover, and a cylindrical hole is opened on the top of the inner wall of the material storage shell.

[0008] Preferably, the bottom end of the cover is located inside the inspection hole, the camera is located between two fill lights, and the second ring is installed on the top of the pile body through a first bolt.

[0009] Preferably, a rubber ring is provided inside the cylindrical hole, a plurality of hollow blocks are evenly distributed and fixed on the top of the storage shell, a sealing strip is bonded and connected between two adjacent stabilizing frames, and the bottom of each sealing strip is in contact with the top of the storage shell.

[0010] Preferably, a plurality of rectangular blocks are equidistantly distributed and fixed on the bottom of the first sleeve ring, a hole cover is installed on the top of the storage shell, and the bottom end of the hole cover is located inside the feed hole.

[0011] Preferably, a mounting seat is fixed on the top of the pile body, the mounting seat is movably sleeved inside the storage shell, the second ring is movably sleeved on the outer surface of the mounting seat, a cross block is installed at the top groove of the mounting seat, a mounting ring is movably sleeved on the outer surface of the mounting seat, and the top of the mounting ring and the top of the mounting seat are on the same horizontal plane.

[0012] Preferably, the cross block is fixed inside the mounting ring, the same end of each of the stabilizing frames is mounted to the outer wall of the mounting ring via a second bolt, and the same surface of each of the sealing strips is in contact with the surface of the mounting ring.

[0013] Preferably, the pile body is provided with an erosion monitoring and protection mechanism, which includes a first steel cage and three arc-shaped blocks. A plurality of fixing nails are evenly distributed and fixed on the outer wall of the first steel cage, and the top of each fixing nail is in contact with the bottom of the first ring. Each of the rectangular blocks is slidably embedded in the top of each fixing nail, and a second steel cage is provided on the inner wall of the first steel cage.

[0014] Preferably, the top of the first steel cage and the top of the second steel cage are both in contact with the bottom of the storage shell, a stone layer is arranged between the inner wall of the first steel cage and the outer wall of the second steel cage, the bottom outlet of the storage shell is above the stone layer, and a circular ring block is fixed between the bottom of the first steel cage and the bottom of the second steel cage.

[0015] Preferably, the pile body is movably sleeved inside the second steel cage, and the inner wall of the second steel cage is in contact with the outer surface of the pile body, a connecting block is fixed to the surface of one of the fixing nails, a pressure sensor is installed inside the connecting block, a protective shell is fixed to the bottom of the connecting block, the detection end of the pressure sensor is inside the protective shell, and the three arc blocks are all fixed to the outer wall of the mounting ring.

[0016] Preferably, an antenna is installed on the surface of one of the arc blocks, a controller is installed on the surface of the middle arc block, and a vibration sensor is installed on the surface of the other arc block, and the two fill lights, cameras, pressure sensors, antennas and vibration sensors are all electrically connected to the controller.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can provide automatic material replenishment for the gabion protection device used for the offshore wind power pile foundation by arranging an auxiliary mechanism, that is, when the stones in the gabion device are washed away by the sea current and become smaller, the stones inside the gabion can also be replenished in time, thereby avoiding the scouring of the pile body by the sea current, that is, the service life of the wind power pile foundation is improved. When the stones of the stone layer inside the space composed of the first steel cage, the circular ring block and the second steel cage are eroded and become smaller, at this time, under the action of the material storage shell, the stones stored in the material storage shell can be guided to the inside of the above space, and the above space can be replenished with stones. At the same time, with the cooperation of the controller, the camera and the fill light, it can be realized to monitor in real time whether there are stones left in the material storage shell. At the same time, with the cooperation of the antenna and the controller, the situation that there are no stones in the material storage shell can be wirelessly transmitted to the monitoring equipment in the control room for alarm reminder.

[0019] 2. The present invention can protect the pile body of the wind power pile foundation by setting up a scour monitoring and protection device, and perform scour monitoring on the protection device. When the pile body is impacted by the ocean current, the cooperation of the first steel cage, the second steel cage, the circular ring block and the stone layer can reduce or minimize the impact force of the ocean current on the pile body. At the same time, with the cooperation of the fixing nails, the stability of the first steel cage after installation can be improved.

[0020] 3. The present invention, with the cooperation of pressure sensors, vibration sensors, controllers, antennas and monitoring equipment in the monitoring room, can analyze and determine the impact force of the ocean current on the stone layer by receiving pressure data and vibration data, and further indirectly determine the scouring condition and impact of the stone layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A partially cutaway stereoscopic diagram of a scour monitoring and protection device for an offshore wind power pile foundation according to the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of a pile body, a mounting seat, a cross block and a mounting ring of a scour monitoring and protection device for an offshore wind power pile foundation according to the present invention;

[0023] Figure 3 A stereoscopic diagram of a scour monitoring and protection device for offshore wind power pile foundation according to the present invention;

[0024] Figure 4 It is a partial three-dimensional diagram of the auxiliary mechanism of a scour monitoring and protection device for offshore wind power pile foundation of the present invention;

[0025] Figure 5 It is a three-dimensional diagram of another part of the auxiliary mechanism of the scour monitoring and protection device for offshore wind power pile foundation of the present invention;

[0026] Figure 6 The present invention is a scour monitoring and protection device for offshore wind power pile foundation Figure 1 The enlarged stereogram at A in the middle;

[0027] Figure 7 It is a partially cutaway stereoscopic view of an auxiliary mechanism of a scour monitoring and protection device for an offshore wind power pile foundation according to the present invention;

[0028] Figure 8 It is a partial stereoscopic diagram of the scour monitoring and protection mechanism of the scour monitoring and protection device for offshore wind power pile foundation of the present invention.

[0029] In the figure: 1. pile body; 2. mounting base; 3. cross block; 4. mounting ring; 5. scour monitoring and protection mechanism; 501. first steel cage; 502. fixing nail; 503. second steel cage; 504. stone layer; 505. circular ring block; 506. connecting block; 507. pressure sensor; 508. protective shell; 509. arc block; 510. antenna; 511. controller; 512. vibration sensor; 6. auxiliary mechanism; 601. storage shell; 602. first set of rings; 603. stabilizing frame; 604. second set of rings; 605. inspection hole; 606. feeding hole; 607. cover; 608. fill light; 609. camera; 610. cylindrical hole; 611. rubber ring; 612. hollow block; 613. sealing strip; 614. rectangular block; 615. hole cover. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 8 As shown, the present invention provides a technical solution: a scour monitoring and protection device for offshore wind power pile foundation, comprising a pile body 1, on which an auxiliary mechanism 6 is arranged;

[0032] The auxiliary mechanism 6 includes a material storage shell 601, a first ring 602 is fixedly sleeved on the bottom of the outer wall of the material storage shell 601, a plurality of stabilizing frames 603 are equidistantly installed on the top of the material storage shell 601, a second ring 604 is fixedly sleeved on the bottom of the inner wall of the material storage shell 601, an inspection hole 605 is opened on the top of the inner wall of the material storage shell 601, a feeding hole 606 is opened on the top of the inner wall of the material storage shell 601, a cover 607 is installed on the top of the material storage shell 601, two symmetrical fill lights 608 are installed on the top of the inner wall of the cover 607, a camera 609 is installed on the top of the inner wall of the cover 607, and a cylindrical hole 610 is opened on the top of the inner wall of the material storage shell 601.

[0033] according to Figure 1 , Figure 2 and Figure 4-Figure 7 As shown, the bottom end of the cover 607 is located inside the inspection hole 605, the camera 609 is located between the two fill lights 608, and the second ring 604 is installed on the top of the pile body 1 through the first bolt, so that the storage shell 601 can be fixed on the pile foundation composed of the pile body 1, the mounting seat 2 and the mounting ring 4 with the cooperation of the second ring 604, the stabilizing frame 603, the second bolt and the first bolt.

[0034] according to Figure 1 , Figure 3-Figure 5 and Figure 7 As shown, a rubber ring 611 is provided inside the cylindrical hole 610, a plurality of hollow blocks 612 are evenly distributed and fixed on the top of the storage shell 601, and sealing strips 613 are bonded and connected between two adjacent stabilizing frames 603, and the bottom of each sealing strip 613 is in contact with the top of the storage shell 601. Under the action of the storage shell 601, stone supply can be provided for the interior of the space composed of the first steel cage 501, the circular ring block 505 and the second steel cage 503.

[0035] according to Figure 1 , Figure 3 , Figure 4 and Figure 7As shown, a plurality of rectangular blocks 614 are evenly distributed and fixed at the bottom of the first ring 602, a hole cover 615 is installed on the top of the storage shell 601, and the bottom end of the hole cover 615 is located inside the feed hole 606. Under the action of the hole cover 615, foreign matter and rainwater can be prevented from entering the interior of the storage shell 601.

[0036] according to Figure 1-Figure 4 , Figure 6 and Figure 7 As shown, a mounting base 2 is fixed on the top of the pile body 1, and the mounting base 2 is movably sleeved inside the storage shell 601, and a second ring 604 is movably sleeved on the outer surface of the mounting base 2, and a cross block 3 is installed at the top groove of the mounting base 2, and a mounting ring 4 is movably sleeved on the outer surface of the mounting base 2, and the top of the mounting ring 4 and the top of the mounting base 2 are on the same horizontal plane, so that the wind turbine tower can be installed on the top of the pile body 1 with the cooperation of the mounting ring 4 and the mounting base 2.

[0037] according to Figure 1-Figure 3 and Figure 7 As shown, the cross block 3 is fixed inside the mounting ring 4, the same end of each stabilizing frame 603 is mounted to the outer wall of the mounting ring 4 through a second bolt, and the same surface of each sealing strip 613 is in contact with the surface of the mounting ring 4, so that under the action of the sealing strip 613, rainwater or foreign matter can be prevented from entering between the inner wall of the storage shell 601 and the outer wall of the mounting ring 4.

[0038] according to Figure 1-Figure 4 , Figure 6 and Figure 8 As shown, a scour monitoring and protection mechanism 5 is provided on the pile body 1, and the scour monitoring and protection mechanism 5 includes a first steel cage 501 and three arc blocks 509. A plurality of fixing nails 502 are evenly distributed and fixed on the outer wall of the first steel cage 501, and the top of each fixing nail 502 is in contact with the bottom of the first ring 602. Each rectangular block 614 is slidably embedded in the top of each fixing nail 502, and a second steel cage 503 is provided on the inner wall of the first steel cage 501. With the cooperation of the second steel cage 503, the circular ring block 505 and the first steel cage 501, a position for placing the stone layer 504 can be provided.

[0039] according to Figure 1 , Figure 3 , Figure 4 and Figure 6-Figure 8As shown, the top of the first steel cage 501 and the top of the second steel cage 503 are both in contact with the bottom of the storage shell 601, a stone layer 504 is arranged between the inner wall of the first steel cage 501 and the outer wall of the second steel cage 503, and the bottom outlet of the storage shell 601 is above the stone layer 504. A circular ring block 505 is fixed between the bottom of the first steel cage 501 and the bottom of the second steel cage 503, so that the first steel cage 501 and the second steel cage 503 can be fixed together under the action of the circular ring block 505.

[0040] according to Figure 1-Figure 3 , Figure 6 and Figure 8 As shown, the pile body 1 is movably sleeved inside the second steel cage 503, and the inner wall of the second steel cage 503 is in contact with the outer surface of the pile body 1, a connecting block 506 is fixed on the surface of one of the fixing nails 502, a pressure sensor 507 is installed inside the connecting block 506, a protective shell 508 is fixed to the bottom of the connecting block 506, the detection end of the pressure sensor 507 is inside the protective shell 508, and three arc blocks 509 are all fixed on the outer wall of the mounting ring 4, which can provide installation positions for the controller 511, the antenna 510 and the vibration sensor 512 under the action of the arc blocks 509.

[0041] according to Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, an antenna 510 is installed on the surface of one of the arc blocks 509, a controller 511 is installed on the surface of the middle arc block 509, and a vibration sensor 512 is installed on the surface of the other arc block 509. The two fill lights 608, the camera 609, the pressure sensor 507, the antenna 510 and the vibration sensor 512 are all electrically connected to the controller 511, so that under the action of the fill light 608, fill light operation can be provided for the camera 609, that is, the shooting effect of the camera 609 is improved.

[0042] The effect achieved by the entire mechanism is: when the offshore wind power pile foundation pile body 1 (the bottom end is in the seabed soil layer, and the middle and upper ends are in the seawater) needs to be equipped with a scour monitoring and protection mechanism 5, at this time, the frame composed of the first steel cage 501, the second steel cage 503, the circular ring block 505 and the fixing nail 502 is first hoisted by the ship crane, and is sleeved on the outer surface of the pile body 1, and then the pile driver presses the bottom ends of all the fixing nails 502 into the seabed soil layer, and then the entire auxiliary mechanism 6 is hoisted by the cooperation of the ship crane and the hollow block 612 until the top of the pile body 1 is inside the storage shell 601, and each rectangular block 614 is slidably embedded in the top of each fixing nail 502. When the fixing nail 502 completes the installation operation, the bottom of the circular ring block 505 Just in contact with the surface of the seabed silt layer, the first ring 602 is also just on the sea surface, and then the first bolt and the second bolt are used to fix the auxiliary mechanism 6, and then the sealing strip 613 is installed, and then the pressure sensor 507, the fill light 608, the camera 609, the vibration sensor 512, the antenna 510 and the controller 511 are connected, and finally the tower of the wind turbine is installed between the top of the mounting seat 2 and the top of the mounting ring 4, and at the same time, a part of the electric energy is diverted from the submarine cable that transmits the electric energy generated by the wind turbine to power the controller 511. When everything is ready, the hole cover 615 is directly removed, and then stones are loaded into the interior of the storage shell 601 through the cooperation of the feed hole 606. When the round When the space formed by the ring block 505, the first steel cage 501, the second steel cage 503 and the storage shell 601 is full, the hole cover 615 is directly installed back to the initial position, and then the controller 511 is opened, and the image data of the inner wall of the storage shell 601 without stones is stored in the internal storage module of the controller 511). Then, with the cooperation of the antenna 510, the controller 511 is wirelessly connected with the monitoring equipment in the control room specially used for monitoring the pile foundation of offshore wind power piles. When the sea current washes the pile body 1, at this time, with the cooperation of the first steel cage 501, the second steel cage 503, the stone layer 504 and the ring block 505, the impact force of the sea current on the surface of the pile body 1 can be reduced or reduced, that is, the service life of the pile body 1 is increased, which is comparable to the above. At the same time, the pressure sensor 507 will also detect the water pressure around the pile body 1, and transmit the pressure data obtained each time to the controller 511 in the form of an electrical signal. At the same time, the vibration sensor 512 will also collect the vibration force generated each time the ocean current impacts the stone layer 504 through the cooperation of the pile body 1, and transmit the vibration data collected each time to the controller 511 in the form of an electrical signal. Then, the controller 511 will wirelessly transmit all the received pressure data and all the vibration force data to the monitoring equipment in the monitoring room through the cooperation of the antenna 510. Then, the monitoring equipment will analyze the pressure fluctuation caused by the ocean current through the received pressure data, so as to indirectly infer the change in the impact force of the ocean current on the stone layer 504.Furthermore, the scouring conditions and impacts of the stone layer 504 can be inferred. Similarly, the monitoring equipment will also analyze the impact of the ocean current on the stone layer 504 through the received vibration data, thereby indirectly inferring the change in the impact of the ocean current on the stone layer 504, and further inferring the scouring conditions and impacts of the stone layer 504. That is, double monitoring is used to accurately monitor the scouring conditions of the ocean current on the stone layer 504. When the stones inside the stone layer 504 are eroded and become smaller by the ocean current, the stones inside the storage shell 601 will directly enter the space composed of the first steel cage 501, the circular ring block 505 and the second steel cage 503 under the action of their own weight. At the same time, the camera 609 will also monitor the two fill lights 608. With the cooperation of the controller 511, the remaining stones in the storage shell 601 are monitored, and the image data captured each time is transmitted to the controller 511. Then the controller 511 will directly compare the image data received each time with the image data stored in advance by the controller 511. When the image data received by the controller 511 is different from the image data stored in advance by the controller 511, the controller 511 will not send an alarm prompt to the monitoring equipment in the monitoring room through the antenna 510. When the image data received by the controller 511 is the same as the image data stored in advance by the controller 511, the controller 511 will send an alarm prompt to the monitoring equipment in the monitoring room through the antenna 510 to remind personnel to put stones into the storage shell 601.

[0043] Among them, the first bolt and the second bolt are commonly used parts in reality.

[0044] Among them, the first steel cage 501, the second steel cage 503 and the circular ring block 505 can form a gabion.

[0045] The stone layer 504 is formed by stacking a plurality of stones, and the wind power pile foundation is composed of a pile body 1 , a mounting ring 4 and a mounting seat 2 .

[0046] Among them, the pressure sensor 507, antenna 510, controller 511 (PLC controller), vibration sensor 512, fill light 608 and camera 609 are all existing technologies, and their working principles are all public technologies. Their models can be selected according to actual conditions and no further explanation will be given here.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A scour monitoring and protection device for offshore wind power pile foundation, characterized in that: It comprises a pile body (1), on which an auxiliary mechanism (6) is arranged; The auxiliary mechanism (6) comprises a material storage shell (601), a first sleeve ring (602) is fixedly sleeved at the bottom of the outer wall of the material storage shell (601), a plurality of stabilizing frames (603) are equidistantly installed on the top of the material storage shell (601), a second sleeve ring (604) is fixedly sleeved at the bottom of the inner wall of the material storage shell (601), an inspection hole (605) is opened at the top of the inner wall of the material storage shell (601), a feeding hole (606) is opened at the top of the inner wall of the material storage shell (601), a cover (607) is installed at the top of the inner wall of the cover (607), two symmetrical fill lights (608) are installed at the top of the inner wall of the cover (607), a camera (609) is installed at the top of the inner wall of the cover (607), and a cylindrical hole (610) is opened at the top of the inner wall of the material storage shell (601).

2. The scour monitoring and protection device for offshore wind power pile foundation according to claim 1 is characterized in that: The bottom end of the cover (607) is located inside the inspection hole (605), the camera (609) is located between the two fill lights (608), and the second ring (604) is installed on the top of the pile body (1) through a first bolt.

3. The scour monitoring and protection device for offshore wind power pile foundation according to claim 1 is characterized in that: A rubber ring (611) is arranged inside the cylindrical hole (610), a plurality of hollow blocks (612) are evenly distributed and fixed on the top of the material storage shell (601), and a sealing strip (613) is bonded and connected between two adjacent stabilizing frames (603), and the bottom of each sealing strip (613) is in contact with the top of the material storage shell (601).

4. The scour monitoring and protection device for offshore wind power pile foundation according to claim 1 is characterized in that: A plurality of rectangular blocks (614) are fixed and distributed equidistantly on the bottom of the first sleeve ring (602), a hole cover (615) is installed on the top of the material storage shell (601), and the bottom end of the hole cover (615) is located inside the feed hole (606).

5. The scour monitoring and protection device for offshore wind power pile foundation according to claim 4 is characterized in that: A mounting seat (2) is fixed on the top of the pile body (1), and the mounting seat (2) is movably sleeved inside the material storage shell (601). The second ring (604) is movably sleeved on the outer surface of the mounting seat (2). A cross block (3) is installed in the top groove of the mounting seat (2). A mounting ring (4) is movably sleeved on the outer surface of the mounting seat (2), and the top of the mounting ring (4) and the top of the mounting seat (2) are on the same horizontal plane.

6. The scour monitoring and protection device for offshore wind power pile foundation according to claim 5 is characterized in that: The cross block (3) is fixed inside the mounting ring (4), the same end of each of the stabilizing frames (603) is mounted on the outer wall of the mounting ring (4) via a second bolt, and the same surface of each of the sealing strips (613) is in contact with the surface of the mounting ring (4).

7. The scour monitoring and protection device for offshore wind power pile foundation according to claim 1 is characterized in that: The pile body (1) is provided with a scour monitoring and protection mechanism (5), which comprises a first steel cage (501) and three arc-shaped blocks (509); a plurality of fixing nails (502) are evenly distributed and fixed on the outer wall of the first steel cage (501); the top of each fixing nail (502) is in contact with the bottom of the first ring (602); each rectangular block (614) is slidably embedded in the top of each fixing nail (502); and a second steel cage (503) is provided on the inner wall of the first steel cage (501).

8. The scour monitoring and protection device for offshore wind power pile foundation according to claim 7 is characterized in that: The top of the first steel cage (501) and the top of the second steel cage (503) are both in contact with the bottom of the storage shell (601), a stone layer (504) is arranged between the inner wall of the first steel cage (501) and the outer wall of the second steel cage (503), the bottom outlet of the storage shell (601) is above the stone layer (504), and a circular ring block (505) is fixed between the bottom of the first steel cage (501) and the bottom of the second steel cage (503).

9. The scour monitoring and protection device for offshore wind power pile foundation according to claim 7, characterized in that: The pile body (1) is movably sleeved inside the second steel cage (503), and the inner wall of the second steel cage (503) is in contact with the outer surface of the pile body (1); a connection block (506) is fixed on the surface of one of the fixing nails (502); a pressure sensor (507) is installed inside the connection block (506); a protective shell (508) is fixed at the bottom of the connection block (506); the detection end of the pressure sensor (507) is located inside the protective shell (508); and the three arc blocks (509) are all fixed on the outer wall of the mounting ring (4).

10. The scour monitoring and protection device for offshore wind power pile foundation according to claim 9, characterized in that: An antenna (510) is installed on the surface of one of the arc blocks (509), a controller (511) is installed on the surface of the middle arc block (509), a vibration sensor (512) is installed on the surface of another arc block (509), and the two fill lights (608), the camera (609), the pressure sensor (507), the antenna (510) and the vibration sensor (512) are all electrically connected to the controller (511).

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