Offshore wind power single-pile foundation pile monitoring device

Abstract

The invention discloses an offshore wind power single-pile foundation pile monitoring device, and relates to the technical field of offshore wind power foundation piles. The foundation pile comprises a foundation pile body, a terrain scouring monitoring assembly is arranged on the outer surface of the foundation pile body, structural health monitoring assemblies are arranged on the outer surface of the foundation pile body at equal intervals, and a corrosion monitoring assembly is arranged on the outer surface of the foundation pile body. The terrain scouring monitoring structure can adapt to the scanning angle under the complex sea condition, the real-time monitoring capacity of the terrain scouring monitoring structure is improved, the structure health monitoring assembly is arranged, the monitoring assembly is arranged to be in a multi-group mode, the arrangement density of sensors is higher, tiny damage can be conveniently captured, monitoring of key nodes is guaranteed, and the corrosion monitoring assembly is arranged, so that the real-time monitoring capacity of the terrain scouring monitoring structure is improved. The monitoring height position can be flexibly adjusted according to the actual monitoring condition, so that the monitoring range is wider, and the effectiveness of corrosion monitoring is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power foundation piles, and in particular to an offshore wind power single pile foundation pile monitoring device. Background Art

[0002] With the growing global demand for clean energy, offshore wind power has become an important development direction in the field of new energy due to its advantages such as abundant resources and not occupying land space. Compared with land-based wind power, offshore wind power has more stable wind resources and higher wind speeds, which can achieve larger-scale electricity production, providing an effective way to alleviate the energy crisis and reduce carbon emissions. In recent years, countries around the world have increased their investment in offshore wind power projects. my country has also vigorously promoted the construction of offshore wind farms in the southeastern coastal areas. The installed capacity of offshore wind farms has increased year by year. Large-diameter single pile foundations are an emerging and widely used form of wind power foundation in my country's coastal areas. In particular, there are only a handful of wind farms that have been built and used. The working characteristics of large-diameter single pile foundations under working loads, stress-deformation characteristics, and interaction with surrounding soil are important issues. Therefore, it is necessary to use single pile foundation monitoring devices to monitor the performance of single piles. However, there are still some problems in the use of existing offshore wind power monopile foundation monitoring devices: First, the traditional terrain scour monitoring module lacks a dynamic adjustment structure and cannot adapt to the scanning angle under complex sea conditions, resulting in insufficient real-time monitoring capabilities. Secondly, the sensor density in the existing structural health monitoring module is insufficient, making it difficult to capture subtle damage, resulting in the lack of monitoring of key nodes, affecting the accuracy of its structural health monitoring results; In addition, the structural installation position of the corrosion monitoring module is relatively fixed, and the height position of its monitoring structure cannot be flexibly adjusted according to actual conditions. This limits the monitoring range and cannot fully cover the corrosion conditions of different depth areas of the pile foundation, thereby reducing the effectiveness of corrosion monitoring. Summary of the Invention

[0003] In order to solve the problems in existing offshore wind power single pile foundation monitoring devices of lacking dynamic adjustment structure and key node monitoring of structural health monitoring and being unable to flexibly adjust the height position of its monitoring structure according to actual conditions; the purpose of the present invention is to provide an offshore wind power single pile foundation monitoring device.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solutions: a monitoring device for offshore wind power monopile foundation piles, comprising a foundation pile body, a terrain scour monitoring component provided on the outer surface of the foundation pile body, structural health monitoring components provided at equal intervals on the outer surface of the foundation pile body, and a corrosion monitoring component provided on the outer surface of the foundation pile body. Through the coordinated arrangement of the terrain scour monitoring component, the structural health monitoring component, and the corrosion monitoring component, multi-dimensional monitoring of offshore wind power monopile foundation piles is achieved. Terrain scour monitoring can grasp the changes in the terrain around the foundation piles and avoid foundation instability caused by scour. Structural health monitoring can promptly detect abnormal deformation and stress problems in the foundation pile structure. Corrosion monitoring can predict the corrosion situation at different heights of seawater, thereby improving the reliability and economic benefits of offshore wind farms.

[0005] Preferably, the terrain erosion monitoring component includes a connecting plate, which is fixedly sleeved on the outer surface of the foundation pile body, a servo motor is fixedly installed on the upper surface of the connecting plate, a protective cover used in conjunction with the servo motor is fixedly installed on the upper surface of the connecting plate, and the servo motor is fixedly installed inside the protective cover, the output end of the servo motor passes through the upper surface of the connecting plate and is fixedly connected to a gear, the lower surface of the connecting plate is rotatably connected to a connecting ring, and the lower surface of the connecting ring is fixedly connected to a gear ring, the gear is meshed with the gear ring, the lower surface of the gear ring is fixedly connected to a bracket, and a DC motor is fixedly connected to one side of the bracket, a protective box used in conjunction with the DC motor is fixedly installed on one side of the bracket, and the DC motor is fixedly installed inside the protective box The output end of the DC motor passes through one side of the bracket and is fixedly connected to a mounting sleeve. The inner wall of the mounting sleeve is fixedly installed with a scour monitor body. The connecting plate is fixedly sleeved on the outer surface of the foundation pile body to provide a stable installation foundation for the component. The servo motor, under the protection of the protective cover, drives the bracket to rotate horizontally through the meshing transmission of the gear and the gear ring to achieve monitoring azimuth adjustment. The DC motor cooperates with the protective box to drive the mounting sleeve and the scour monitor body to rotate to achieve multi-angle monitoring. This design enables the scour monitor body to monitor the terrain scour conditions around the foundation pile in an all-round and dead-angle manner. Compared with fixed-angle monitoring, it greatly improves the comprehensiveness and accuracy of monitoring, can discover terrain scour hazards earlier, and provide timely and reliable data support for the protection of foundation piles.

[0006] Preferably, the structural health monitoring component includes an installation box, the installation box is fixedly mounted on the outer surface of the foundation pile body, the inner wall of the installation box is symmetrically fixedly connected with a clamping plate, the clamping plate is movably magnetically connected to a sealing cover on one side of the installation box, and a structural health monitor is movably clamped on the opposite side of the clamping plate, the outer surface of the foundation pile body is provided with a groove for cooperating with the structural health monitor, and the structural health monitor is movably contacted with the inner wall of the groove, the structural health monitoring component is provided with three groups, and the internal structures of the three groups of structural health monitoring components are arranged in the same manner, the installation box provides an installation space for the structural health monitor, the clamping plate and The design of the sealing cover, on the one hand, facilitates the installation, disassembly and maintenance of the structural health monitor, and the magnetic connection method allows for quick operation. On the other hand, the sealing cover effectively blocks the intrusion of seawater and debris, protects the normal operation of the monitor, and ensures data accuracy. The grooves on the foundation pile body enable the structural health monitor to fit tightly to the surface of the foundation pile, improving its sensitivity to structural deformation and stress changes. Three sets of structural health monitoring components are set up, and through multi-point monitoring, the structural data of the foundation pile can be obtained from different positions, avoiding the limitations of single-point monitoring, and more comprehensively and accurately assessing the overall structural health of the foundation pile, providing early warning of potential structural risks.

[0007] Preferably, the corrosion monitoring assembly includes a positioning plate, the positioning plate is fixedly sleeved on the outer surface of the foundation pile body, the inner wall of the positioning plate is provided with a slot, the inner wall of the slot is slidably connected with a block, one side of the block is fixedly connected with a positioning seat, the block and the positioning plate are threadedly connected with a bolt, the bolt is a rust-proof bolt, one side of the positioning plate is evenly spaced with threaded holes for matching the bolts, the bolts are threadedly connected with the corresponding threaded holes, one side of the positioning seat is fixedly connected with a mounting groove, and the inner wall of the mounting groove is fixedly installed with a corrosion monitoring probe at equal intervals, the positioning plate is fixedly sleeved on the outer surface of the foundation pile body, the slot and the block, bolt and The threaded holes allow the installation position of the locating seat to be flexibly adjusted. The corrosion monitoring probe can be installed at different heights and positions on the foundation pile according to actual needs to adapt to different seawater corrosion environments and achieve targeted monitoring. The anti-rust bolt ensures the long-term stability of the connection structure in the seawater environment. The corrosion monitoring probe can efficiently and accurately monitor environmental parameters closely related to corrosion, such as seawater pH, salinity, and dissolved oxygen. Through real-time monitoring and analysis of these parameters, the corrosion trend of the foundation pile can be accurately predicted, providing a data basis for the formulation of scientific and reasonable anti-corrosion measures, effectively extending the service life of the foundation pile and reducing the maintenance and replacement costs caused by corrosion.

[0008] Compared with the prior art, the present invention has the following beneficial effects: 1. This application sets up a terrain scour monitoring component and a dynamic adjustment structure, so that the terrain scour monitoring structure can adapt to the scanning angle under complex sea conditions, thereby improving its real-time monitoring capability; 2. This application provides a structural health monitoring component that is arranged in multiple groups, which increases the density of sensor deployment, facilitates the capture of subtle damage, ensures the monitoring of key nodes, and significantly improves the accuracy of structural health monitoring results. 3. This application sets up a corrosion monitoring component to facilitate the flexible adjustment of the monitoring height position according to the actual monitoring situation, so that the monitoring range is wider, so as to more comprehensively cover the corrosion conditions of different depth areas of the pile foundation, thereby effectively improving the effectiveness of corrosion monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] Figure 1 It is a structural schematic diagram of the present invention.

[0011] Figure 2 This is a schematic diagram of the structure of the terrain erosion monitoring component of the present invention.

[0012] Figure 3 This is a schematic diagram of the cross-sectional structure of the terrain erosion monitoring component of the present invention.

[0013] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure in the middle.

[0014] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0015] Figure 6 This is a schematic diagram of the exploded structure of the cross-section of the structural health monitoring component of the present invention.

[0016] Figure 7 This is a schematic diagram of the explosive structure of the corrosion monitoring component of the present invention.

[0017] Figure 8 This is a schematic diagram of the exploded structure of the corrosion monitoring component of the present invention from another perspective.

[0018] In the figure: 1. Foundation pile body; 2. Terrain scour monitoring assembly; 21. Protective cover; 22. Connecting plate; 23. Servo motor; 24. Connecting ring; 25. Gear ring; 26. Gear; 27. Bracket; 28. Protective box; 29. ​​DC motor; 201. Scour monitor body; 202. Mounting sleeve; 3. Structural health monitoring assembly; 31. Groove; 32. Clamping plate; 33. Sealing cover; 34. Structural health monitor; 35. Mounting box; 4. Corrosion monitoring assembly; 41. Positioning plate; 42. Bolt; 43. Threaded hole; 44. Mounting slot; 45. Corrosion monitoring probe; 46. Clamping slot; 47. Clamping block; 48. Positioning seat. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 making creative efforts are within the scope of protection of the present invention.

[0020] Example: Figure 1-8 As shown, the present invention provides an offshore wind power single pile foundation monitoring device, including a foundation pile body 1, the outer surface of the foundation pile body 1 is provided with a terrain scour monitoring component 2, the outer surface of the foundation pile body 1 is provided with a structural health monitoring component 3 at equal intervals, and the outer surface of the foundation pile body 1 is provided with a corrosion monitoring component 4. By arranging the terrain scour monitoring component 2, the structural health monitoring component 3 and the corrosion monitoring component 4 on the outer surface of the foundation pile body 1, an all-round and multi-dimensional monitoring system is formed, which can obtain status information of different aspects of the foundation pile in real time, thereby ensuring the safe and stable operation of the offshore wind power foundation pile.

[0021] The terrain erosion monitoring component 2 includes a connecting plate 22, which is fixedly sleeved on the outer surface of the foundation pile body 1. The connecting plate 22 is fixedly sleeved on the outer surface of the foundation pile body 1 to provide a stable installation foundation for the terrain erosion monitoring component 2. A servo motor 23 is fixedly installed on the upper surface of the connecting plate 22. A protective cover 21 used in conjunction with the servo motor 23 is fixedly installed on the upper surface of the connecting plate 22. The servo motor 23 is fixedly installed inside the protective cover 21, and the protective cover 21 serves to protect the servo motor 23.

[0022] The output end of the servo motor 23 passes through the upper surface of the connecting plate 22 and is fixedly connected to a gear 26. The output end of the servo motor 23 drives the gear 26 to rotate. The lower surface of the connecting plate 22 is rotatably connected to a connecting ring 24, and the lower surface of the connecting ring 24 is fixedly connected to a gear ring 25. The connecting ring 24 ensures the stability of the installation of its gear ring 25. The gear 26 is meshed with the gear ring 25. The meshing transmission of the gear 26 and the gear ring 25 drives the connecting ring 24 and the bracket 27 to rotate, thereby realizing the horizontal angle adjustment of the flushing monitor body 201.

[0023] The lower surface of the gear ring 25 is fixedly connected to a bracket 27, and a DC motor 29 is fixedly connected to one side of the bracket 27. A protective box 28 used in conjunction with the DC motor 29 is fixedly installed on one side of the bracket 27. The DC motor 29 is fixedly installed inside the protective box 28. The protective box 28 plays a role in protecting the DC motor 29. The output end of the DC motor 29 passes through one side of the bracket 27 and is fixedly connected to a mounting sleeve 202, so that the output end of the DC motor 29 drives the mounting sleeve 202 to rotate. The inner wall of the mounting sleeve 202 is fixedly installed with a flushing monitor body 201, which is specifically HD-310. The single-frequency echo sounder and the scour monitor body 201 adopt advanced ultrasonic sensing technology. A high-precision ultrasonic transducer is integrated inside the body. The transducer can emit high-frequency ultrasonic pulses and receive echo signals reflected from the seabed terrain around the foundation pile. By accurately measuring the time difference between the transmitted and received signals and utilizing the propagation speed of sound waves in seawater, the distance between the seabed terrain and the monitor can be accurately calculated. The scour monitor body 201 is driven to adjust the vertical angle through the installation sleeve 202, so that the scour monitor body 201 can adapt to the scanning angle under complex sea conditions, effectively improving the ability to monitor terrain scour in real time, and ensuring comprehensive and accurate acquisition of terrain data around the pile foundation.

[0024] The structural health monitoring assembly 3 includes an installation box 35, which is fixedly mounted on the outer surface of the foundation pile body 1. The installation box 35 is fixedly mounted on the outer surface of the foundation pile body 1 to provide installation space and protection for the structural health monitor 34. The inner wall of the installation box 35 is symmetrically fixedly connected with a clamping plate 32. The clamping plate 32 is movably magnetically connected to a sealing cover 33 on one side of the installation box 35. The structural health monitor 34 is movably clamped on one side of the opposite surface of the clamping plate 32. The magnetic connection method of the clamping plate 32 and the sealing cover 33 facilitates quick opening and closing of the installation box 35, and facilitates the installation, disassembly and maintenance of the structural health monitor 34.

[0025] The outer surface of the foundation pile body 1 is provided with a groove 31 for use with a structural health monitor 34. The structural health monitor 34 is in active contact with the inner wall of the groove 31. The structural health monitor 34 is specifically a Model-2302CW acceleration sensor of SHOWA SOKKI. The structural health monitor 34 uses the fiber grating sensing principle. The fiber grating inside it is composed of a specially made optical fiber. When the foundation pile body 1 is deformed or the stress changes due to external forces such as wind, waves, and water flow, the fiber grating in the structural health monitor 34 pasted in the groove 31 on the surface of the foundation pile body 1 will be stretched or compressed, thereby causing the grating pitch of the fiber grating to change. According to the optical characteristics of the fiber grating, the grating pitch change will cause the central wavelength of its reflected light to shift. By accurately measuring the central wavelength of the reflected light, it can be The strain and stress information of the foundation pile body 1 is obtained in real time and accurately, and the health status of the foundation pile structure is effectively monitored. The structural health monitor 34 cooperates with the groove 31, which can make the monitor better fit the surface of the foundation pile body 1, thereby improving the accuracy of the monitoring data. The structural health monitoring components 3 are provided in three groups, and the internal structures of the three groups of structural health monitoring components 3 are identically set. The provision of three groups of structural health monitoring components 3 significantly increases the density of sensor deployment, can effectively capture subtle damage to key parts of the foundation pile, ensure the monitoring of key nodes, and thus significantly improve the accuracy of the structural health monitoring results.

[0026] The corrosion monitoring component 4 includes a positioning plate 41, which is fixedly sleeved on the outer surface of the foundation pile body 1. The positioning plate 41 is fixedly sleeved on the outer surface of the foundation pile body 1 to provide an installation reference for the corrosion monitoring component 4. A slot 46 is provided on the inner wall of the positioning plate 41, and a block 47 is slidably connected to the inner wall of the slot 46. A positioning seat 48 is fixedly connected to one side of the block 47. The block 47 and the positioning plate 41 are threadedly connected with a bolt 42. The bolt 42 is a rust-proof bolt. Using a rust-proof bolt as the bolt 42 can effectively resist seawater corrosion.

[0027] One side of the positioning plate 41 is provided with threaded holes 43 for use with bolts 42 at equal intervals. The bolts 42 are threadedly connected to the corresponding threaded holes 43. The sliding fit between the card slot 46 and the card block 47, combined with the threaded connection between the bolts 42 and the threaded holes 43, enables the positioning seat 48 to flexibly adjust the height position along the positioning plate 41. One side of the positioning seat 48 is fixedly connected to a mounting groove 44, and the inner wall of the mounting groove 44 is fixedly installed with corrosion monitoring probes 45 at equal intervals. The corrosion monitoring probe 45 is specifically a probe supporting the Olympus 45MG ultrasonic thickness gauge. The corrosion monitoring probe 45 adopts a modular design and integrates a variety of high-precision sensors, among which pH The sensor is used to monitor the pH value of seawater in real time. The pH value is determined by measuring the hydrogen ion concentration in the electrolyte of seawater. The conductivity sensor can accurately measure the electrical conductivity of seawater and then infer the salinity of seawater, providing a comprehensive and accurate basis for environmental parameters for assessing the corrosion risk of the foundation pile body 1, thereby driving the installation groove 44 and the corrosion monitoring probe 45 to change the monitoring height, expanding the scope of corrosion monitoring, and being able to more comprehensively cover the corrosion conditions of different depth areas of the pile foundation, thereby effectively improving the effectiveness of corrosion monitoring.

[0028] Working principle: First, in the terrain scour monitoring link, the connecting plate 22 is pre-fixed and sleeved on the outer surface of the foundation pile body 1. After the servo motor 23 in the upper surface protective cover 21 is started, the output end drives the gear 26 to rotate.

[0029] As the gear 26 engages with the gear ring 25, the gear ring 25 then performs a circular motion around the foundation pile body 1. Since the gear ring 25 is fixed to the lower surface of the connecting ring 24, and the connecting ring 24 is rotatably connected to the lower surface of the connecting plate 22, this structural design ensures the stability of the movement of the gear ring 25.

[0030] The bracket 27 on the lower surface of the gear ring 25 rotates synchronously to complete the adjustment of the monitoring range in the horizontal direction.

[0031] Subsequently, the DC motor 29 in the protective box 28 on one side of the bracket 27 is started, and its output end drives the mounting sleeve 202 to rotate, and the scour monitor body 201 on the inner wall of the mounting sleeve 202 rotates accordingly. Through the linkage between the servo motor 23 and the DC motor 29, the scour monitor body 201 can perform all-round monitoring of the terrain scour conditions in different directions and angles around the foundation pile body 1, and transmit data in real time.

[0032] The structural health monitoring component 3 is carried out simultaneously with terrain scour monitoring. The installation box 35 is fixed to the outer surface of the foundation pile body 1. The structural health monitor 34 is clamped to the inner wall clamp 32. Through the fit contact with the groove 31 on the outer surface of the foundation pile body 1, it accurately senses the deformation and stress changes of the foundation pile body 1 caused by external forces such as wind, waves, and water flow. Once the structural state of the foundation pile body 1 changes, the structural health monitor 34 will quickly capture and process the recorded data.

[0033] At the same time, the sealing cover 33 magnetically connected to the clamping plate 32 and the installation box 35 effectively isolates seawater erosion and interference from debris, ensuring the accuracy of the monitoring data. The multi-point layout of the three sets of structural health monitoring components 3 further improves the comprehensiveness and accuracy of the judgment of the overall structural health status of the foundation pile body 1.

[0034] The corrosion monitoring component 4 also continues to work. The positioning plate 41 is fixedly sleeved on the outer surface of the foundation pile body 1. The inner wall groove 46 and the block 47 slide together, so that the positioning seat 48 can be connected to the threaded holes 43 at different positions of the positioning plate 41 through bolts 42, thereby realizing flexible adjustment of the installation position.

[0035] The corrosion monitoring probe 45 in the installation groove 44 on one side of the positioning seat 48 monitors in real time the key environmental parameters of the seawater around the foundation pile body 1, such as the pH, salinity, and dissolved oxygen. These parameters directly affect the corrosion rate of the foundation pile body 1. After the corrosion monitoring probe 45 transmits the collected data, it can predict the corrosion trend of the foundation pile body 1 through analysis, providing a basis for taking protective measures in time and extending the service life of the foundation pile.

[0036] It is composed of a terrain scour monitoring component 2, a structural health monitoring component 3 and a corrosion monitoring component 4. Each component has a clear division of labor and works together to complete the comprehensive monitoring of the foundation pile body 1.

[0037] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. An offshore wind power monopile foundation pile monitoring device, comprising a foundation pile body (1), characterized in that: The outer surface of the foundation pile body (1) is provided with a terrain scour monitoring component (2), the outer surface of the foundation pile body (1) is provided with a structural health monitoring component (3) at equal intervals, and the outer surface of the foundation pile body (1) is provided with a corrosion monitoring component (4).

2. The offshore wind power monopile foundation monitoring device according to claim 1, characterized in that: The terrain scour monitoring assembly (2) comprises a connecting plate (22), the connecting plate (22) being fixedly sleeved on the outer surface of the foundation pile body (1), a servo motor (23) being fixedly mounted on the upper surface of the connecting plate (22), an output end of the servo motor (23) passing through the upper surface of the connecting plate (22) and being fixedly connected to a gear (26), a connecting ring (24) being rotatably connected to the lower surface of the connecting plate (22), and a gear ring (25) being fixedly connected to the lower surface of the connecting ring (24), the gear (26) being meshed with the gear ring (25), a bracket (27) being fixedly connected to the lower surface of the gear ring (25), a DC motor (29) being fixedly connected to one side of the bracket (27), an output end of the DC motor (29) passing through one side of the bracket (27) and being fixedly connected to a mounting sleeve (202), and a scour monitor body (201) being fixedly mounted on the inner wall of the mounting sleeve (202).

3. The offshore wind power monopile foundation monitoring device according to claim 1, characterized in that: The structural health monitoring assembly (3) includes an installation box (35), the installation box (35) is fixedly installed on the outer surface of the foundation pile body (1), the inner wall of the installation box (35) is symmetrically fixedly connected with a clamping plate (32), and the opposite side of the clamping plate (32) is movably clamped with a structural health monitor (34), and the outer surface of the foundation pile body (1) is provided with a groove (31) used in conjunction with the structural health monitor (34), and the structural health monitor (34) is in movably contact with the inner wall of the groove (31).

4. The offshore wind power monopile foundation monitoring device according to claim 1, characterized in that: The corrosion monitoring assembly (4) includes a positioning plate (41), the positioning plate (41) is fixedly sleeved on the outer surface of the foundation pile body (1), the inner wall of the positioning plate (41) is provided with a card slot (46), the inner wall of the card slot (46) is slidably connected to a card block (47), one side of the card block (47) is fixedly connected to a positioning seat (48), the card block (47) and the positioning plate (41) are threadedly connected to a bolt (42), one side of the positioning seat (48) is fixedly connected to a mounting groove (44), and the inner wall of the mounting groove (44) is fixedly installed with corrosion monitoring probes (45) at equal intervals.

5. The offshore wind power monopile foundation monitoring device according to claim 2, characterized in that: A protective cover (21) used in conjunction with a servo motor (23) is fixedly mounted on the upper surface of the connecting plate (22), and the servo motor (23) is fixedly mounted inside the protective cover (21).

6. The offshore wind power monopile foundation monitoring device according to claim 2, characterized in that: A protection box (28) used in conjunction with a DC motor (29) is fixedly mounted on one side of the bracket (27), and the DC motor (29) is fixedly mounted inside the protection box (28).

7. The offshore wind power monopile foundation monitoring device according to claim 3, characterized in that: The clamping plate (32) is movably magnetically connected to one side of the installation box (35) with a sealing cover (33).

8. The offshore wind power monopile foundation monitoring device according to claim 3, characterized in that: The structural health monitoring components (3) are provided in three groups, and the internal structures of the three groups of structural health monitoring components (3) are arranged identically.

9. The offshore wind power monopile foundation monitoring device according to claim 4, characterized in that: The bolt (42) is a rust-proof bolt.

10. The offshore wind power monopile foundation monitoring device according to claim 4, characterized in that: One side of the positioning plate (41) is provided with threaded holes (43) at equal intervals for use with bolts (42), and the bolts (42) are threadedly connected to the corresponding threaded holes (43).

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