Bridge pier anti-ship collision device based on offshore aquaculture net cage

Abstract

The application relates to a bridge non-navigable hole bridge pier anti-ship collision device based on a marine culture net cage, which comprises a floating culture net cage, a center installation channel penetrating through the top and the bottom of the floating culture net cage is arranged at the center of the floating culture net cage, the center installation channel is used for the through of a pier column of a bridge located in a non-navigable sea area, and a gap exists between the center installation channel and the pier column; and an annular culture space is arranged on the outer side of the center installation channel in the floating culture net cage. When a ship collides with the bridge pier, the floating culture net cage is plastically deformed to absorb the impact energy, so that the anti-collision capacity of the pier column is improved. The wave absorbing capacity of the floating culture net cage itself reduces the scour of seawater on the pier column, the pier column is protected, the floating culture net cage is attached to the pier column, the power demand of the floating culture net cage for marine culture is conveniently met, and the gap between the floating culture net cage and the pier column ensures that the floating culture net cage can float up and down with the change of the water level.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of non-navigable bridge pier anti-ship collision and offshore aquaculture, and particularly relates to a bridge non-navigable bridge pier anti-ship collision device based on offshore aquaculture net cages. BACKGROUND

[0002] The advantage of offshore net cage aquaculture is that it can utilize sea areas, improve aquaculture density, reduce pollution emissions, and at the same time, the quality and yield of products are also higher, and it is expected to become one of the important development directions of China's aquaculture industry. However, offshore aquaculture also faces some challenges, such as large sea waves, high requirements for facilities, lack of power supply and other problems, which will increase its investment cost and operating risk; and the anti-collision ability of hundreds of non-navigable bridge piers on the cross-sea channel is relatively weak, and is easy to be damaged by ships, resulting in safety accidents. SUMMARY

[0003] In order to more clearly illustrate the present application, an offshore aquaculture net cage based bridge non-navigable bridge pier anti-ship collision device is provided to solve the problems of difficulty in providing suitable environment and facilities for offshore aquaculture, and weak anti-collision ability of the pier column of the bridge in the non-navigable sea area and the urgent need for protection.

[0004] An offshore aquaculture net cage based bridge non-navigable bridge pier anti-ship collision device is provided, which comprises: a floating aquaculture net cage, a center installation channel penetrating through the top and bottom thereof is arranged at the center of the floating aquaculture net cage, the center installation channel is used for the pier column of the bridge in the non-navigable sea area to pass through, and a gap exists between the center installation channel and the pier column; and an annular aquaculture space is arranged inside the floating aquaculture net cage and located on the outer side of the center installation channel.

[0005] In some embodiments, the floating aquaculture net cage comprises an outer ring net cage, an inner ring net cage and an annular bottom net; the inner ring net cage is arranged on the side of the pier column along the length direction of the pier column, the inside of the inner ring net cage is the center installation channel, a reinforcing support rod is arranged on the side of the inner ring net cage, the other end of the reinforcing support rod is connected to the outer ring net cage, and the annular bottom net is arranged at the bottom of the outer ring net cage and connected to the bottom of the inner ring net cage; and the annular aquaculture space is arranged between the outer ring net cage and the inner ring net cage.

[0006] In some embodiments, the outer ring net cage, the inner ring net cage and the annular bottom net are all made of fiber reinforced composite material.

[0007] In some embodiments, the top and the middle side of the inner ring net cage are provided with a first reinforcing support ring, and the top and the middle side of the outer ring net cage are provided with a second reinforcing support ring; the first reinforcing support ring at the top is connected to the second reinforcing support ring at the top through a reinforcing support rod, and the first reinforcing support ring and the second reinforcing support ring below are also connected through a reinforcing support rod.

[0008] In some embodiments, an energy dissipation element is also included, comprising a first plate, a second plate, and a third plate; the second plate and the first plate are spaced a designed distance apart in the radial direction of the pier, and the two second plates are respectively connected to the first plate through the third plate to form an arch structure; and the third plate is made of rubber material.

[0009] In some embodiments, the second plate is fixedly connected to the pier, and the first plate is in frictional contact with the inner ring mesh box; or, the second plate is fixedly connected to the inner ring mesh box, and the first plate is in frictional contact with the pier.

[0010] In some embodiments, the reinforcing support rod, the first reinforcing support ring, and the second reinforcing support ring are all double-layer structures including an inner layer and an outer layer, and are all made of fiber-reinforced composite materials, with cushioning material provided in the inner layer and between the inner and outer layers.

[0011] In some embodiments, there is a height difference between the first reinforcing support ring located at the top of the inner ring cage and the second reinforcing support ring located at the top of the outer ring cage; the first reinforcing support ring located on the middle periphery of the inner ring cage and the second reinforcing support ring located on the middle periphery of the outer ring cage are located on the same horizontal plane.

[0012] In some embodiments, both the outer ring gabion and the inner ring gabion include annular composite reinforcement and longitudinal composite reinforcement, with multiple annular composite reinforcements evenly spaced along the length of the pier column and multiple longitudinal composite reinforcements evenly spaced along the periphery of the annular composite reinforcements; the annular bottom gabion includes annular composite reinforcements, which are evenly distributed from the inner ring gabion towards the outer ring gabion, and are provided with transverse composite reinforcements corresponding to the inner ring gabion and the outer ring gabion respectively; the surfaces of the inner ring gabion, the outer ring gabion, and the annular bottom gabion are all provided with a mesh cover, and the mesh cover is made of synthetic fiber material.

[0013] In some embodiments, a circular walking platform is provided around the second reinforcing support ring located at the top of the outer ring cage, and a circular handrail is provided around the circular walking platform.

[0014] The beneficial effects of the technical solution provided in this application include:

[0015] This application provides a collision protection device for bridge piers in non-navigable areas based on aquaculture cages. The floating aquaculture cage has a central installation channel running through the top and bottom, allowing bridge piers located in non-navigable waters to pass through. When a ship collides with the pier, the floating aquaculture cage undergoes plastic deformation, absorbing the impact energy and thus improving the pier's collision resistance. Furthermore, the floating aquaculture cage's wave-damping ability reduces seawater erosion of the pier, protecting it. The cage's attachment to the pier also facilitates the supply of electricity needed for aquaculture operations. A gap between the floating aquaculture cage and the pier ensures that the cage can float up and down with changes in water level. Attached Figure Description

[0016] The technical solutions in the embodiments of the application will be briefly described below with reference to the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a ship-proof pier structure with marine aquaculture cages provided in an embodiment of this application;

[0018] Figure 2 This is a partial structural schematic diagram of the floating aquaculture cage provided in the embodiments of this application;

[0019] Figure 3 A schematic diagram of the cross-section of the reinforcing support rod and the reinforcing support ring provided in the embodiments of this application;

[0020] Figure 4 A top view of the floating aquaculture cage provided in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the energy dissipation element structure provided in an embodiment of this application.

[0022] In the diagram: 1. Floating aquaculture cage; 2. Central installation channel; 3. Circular aquaculture space; 4. Outer ring cage; 5. Inner ring cage; 6. Circular bottom net; 7. Reinforcing support rod; 8. First reinforcing support ring; 9. Second reinforcing support ring; 10. Energy dissipation element; 101. Third plate; 102. First plate; 103. Second plate; 11. Inner layer; 12. Outer layer; 13. Buffer material; 14. Circular composite reinforcement; 15. Longitudinal composite reinforcement; 16. Transverse composite reinforcement; 17. Netting; 18. Circular walking platform; 19. Circular handrail; 20. Pier column. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] This application provides a collision protection device for bridge piers in non-navigable spans based on marine aquaculture cages, which can solve the problems of difficulty in providing suitable environment and facilities for marine aquaculture, weak collision protection capability of bridge piers in non-navigable spans and the urgent need for protection.

[0025] Given that marine aquaculture faces challenges such as rough seas, demanding facilities, and power shortages, and that the hundreds of non-navigable channel piers along cross-sea passages have relatively weak collision resistance and are easily damaged by ship collisions, leading to safety accidents, a floating aquaculture cage 1 with a through-hole channel 2 running through the top and bottom center is designed and installed on the non-navigable channel piers 20. This not only improves the collision resistance of the non-navigable channel piers but also reduces the impact of seawater on the piers through the cage's own wave-damping capabilities, providing protection. Furthermore, the floating aquaculture cage 1, attached to the pier, facilitates the provision of power equipment needed for marine aquaculture. The combination of these two approaches achieves twice the result with half the effort, reducing infrastructure costs and improving both economic and ecological benefits.

[0026] refer to Figures 1-5 A collision prevention device for bridge piers in non-navigable spans based on marine aquaculture cages includes: a floating aquaculture cage 1, with a central installation channel 2 running through its top and bottom, the central installation channel 2 being used for the passage of a bridge pier 20 located in a non-navigable sea area, and a gap existing between the central installation channel 2 and the pier 20; the interior of the floating aquaculture cage 1 is provided with an annular aquaculture space 3 located around the central installation channel 2.

[0027] Through this structure and combination, the floating aquaculture cage 1 has a central installation channel 2 running through the top and bottom, which facilitates the passage of the pier 20 and improves the protection of the pier of the bridge in non-navigable sea areas. The wave-dissipating ability of the floating aquaculture cage itself reduces the scouring of the pier by seawater and protects the pier 20. The floating aquaculture cage 1 is attached to the pier 20, which also facilitates the supply of electricity needed for marine aquaculture. In addition, there is a gap between the floating aquaculture cage 1 and the pier 20 to ensure that the floating aquaculture cage 1 can float up and down with the change of water level.

[0028] In some preferred embodiments, the floating aquaculture cage 1 includes an outer ring cage 4, an inner ring cage 5, and an annular bottom net 6. The inner ring cage 5 is located around the pier 20 along its length, and its interior has a central installation channel 2. Reinforcing support rods 7 are provided around the inner ring cage 5, and the other end of the reinforcing support rods 7 is connected to the outer ring cage 4. The annular bottom net 6 is located at the bottom of the outer ring cage 4 and connected to the bottom of the inner ring cage 5. An annular aquaculture space 3 is formed between the outer ring cage 4 and the inner ring cage 5. The floating aquaculture cage 1 adopts a design combining the outer ring cage 4, the inner ring cage 5, and the annular bottom net 6. The outer ring cage 4 and the inner ring cage 5 form a ring-shaped aquaculture space 3. The inner ring cage 5 has a central installation channel 2 inside, which is compatible with the connection of different piers 20. It is also connected to the outer ring cage 4 through a reinforcing support rod 7. The ring bottom net 6 is located at the bottom of the floating aquaculture cage 1 and connects the inner ring cage 5 and the outer ring cage 4, making the overall cage structure more stable and firm, and making full use of the aquaculture space.

[0029] In some preferred embodiments, the outer ring cage 4, inner ring cage 5, and annular bottom net 6 are all made of fiber-reinforced composite materials. This design utilizes fiber-reinforced composite materials with excellent compressive strength and corrosion resistance, while also possessing a certain degree of elasticity and toughness. On one hand, the composite material structure provides strong compressive strength, effectively protecting the bridge piers from ship collisions. On the other hand, the composite material structure also features a lightweight design, allowing the floating aquaculture cage 1 to float and move with water level changes. This design increases stability and ensures that the floating aquaculture cage 1 remains positioned between the bridge piers and vessels at sea, providing collision protection.

[0030] In some preferred embodiments, the inner ring cage 5 has a first reinforcing support ring 8 at its top and middle periphery, and the outer ring cage 4 has a second reinforcing support ring 9 at its top and middle periphery. The first reinforcing support ring 8 and the second reinforcing support ring 9 at their top are connected by a reinforcing support rod 7, and the first reinforcing support ring 8 and the second reinforcing support ring 9 below them are also connected by a reinforcing support rod 7. In this design, the inner ring cage 5 and the outer ring cage 4 increase the structural stability and load-bearing capacity by setting the first reinforcing support ring 8 and the second reinforcing support ring 9. The first reinforcing support ring 8 is located at the top and middle periphery of the inner ring cage 5 to strengthen the structure of the inner ring cage 5 and improve its overall load-bearing capacity and stability. The second reinforcing support ring 9 is located at the top and middle periphery of the outer ring cage 4, and similarly serves to reinforce the structure of the outer ring cage 4, increasing its compressive strength and stability. The reinforcing support rod 7 connects the key components of the inner ring cage 5 and the outer ring cage 4, with its two ends connected to the first reinforcing support ring 8 at the top and the second reinforcing support ring 9 at the middle, forming a stable whole.

[0031] In some preferred embodiments, an energy dissipation element 10 is also included, comprising a first plate 102, a second plate 103, and a third plate 101. The second plate 103 and the first plate 102 are radially spaced apart from each other on the pier 20, and the two second plates 103 are connected to the first plate 102 via the third plate 101 to form an arched structure. The third plate 101 is made of rubber. The energy dissipation element 10 is mainly located in the gap between the central installation channel 2 and the pier 20. The third plate 101 and the first plate 102 can reduce the wear caused by friction between the floating aquaculture cage 1 and the pier 20 during the up-and-down floating process, as well as the wear caused by the swaying and drifting of the floating aquaculture cage 1 due to external factors such as waves and wind, which causes friction between the floating aquaculture cage 1 and the pier 20. This arrangement can extend the service life of the floating aquaculture cage 1 and the pier 20 and reduce maintenance costs.

[0032] In some preferred embodiments, the second plate 103 is fixedly connected to the pier 20, and the first plate 102 is in frictional contact with the inner ring mesh box 5; or, the second plate 103 is fixedly connected to the inner ring mesh box 5, and the first plate 102 is in frictional contact with the pier 20. There are two design schemes: a gap is left between the central mounting channel 2 and the pier 20, and the energy dissipation element 10 is placed in this gap. The second plate 103 is fixedly connected to the inner ring mesh box 5, and the first plate 102 is in frictional contact with the pier 20 to achieve vibration reduction. Alternatively, multiple energy dissipation elements 10 can be arranged along the periphery of the pier 20 and along its length, with the second plate 103 fixedly connected to the pier 20 and the first plate 102 in frictional contact with the inner ring mesh box 5, thereby achieving vibration reduction.

[0033] In some preferred embodiments, the reinforcing support rod 7, the first reinforcing support ring 8, and the second reinforcing support ring 9 are all double-layer structures comprising an inner layer 11 and an outer layer 12, and are all made of fiber-reinforced composite materials. A buffer material 13 is provided within the inner layer 11 and between the inner layer 11 and the outer layer 12. This double-layer structure, where both the inner layer 11 and the outer layer 12 are made of fiber-reinforced composite materials, increases the strength and stability of the rod and ring while reducing weight, resulting in a lighter and more robust overall structure. The buffer material 13 between the inner layer 11 and the outer layer 12 in the double-layer structure provides shock absorption and cushioning, effectively absorbing impact and vibration energy, reducing the impact of external impacts on the support structure, and extending the service life of the support structure. This design not only improves the durability and load-bearing capacity of the structure but also enhances its protective function as a collision avoidance device for bridge piers.

[0034] In some preferred embodiments, there is a height difference between the first reinforcing support ring 8 located at the top of the inner ring cage 5 and the second reinforcing support ring 9 located at the top of the outer ring cage 4; the first reinforcing support ring 8 located on the middle periphery of the inner ring cage 5 and the second reinforcing support ring 9 located on the middle periphery of the outer ring cage 4 are located on the same horizontal plane. These height differences and horizontal plane settings can effectively improve the stability and balance of the floating aquaculture cage 1 structure. Due to the partial height difference between the inner ring cage 5 and the outer ring cage 4, the support rings at different positions can share different loads and forces, increasing the stability of the structure and reducing the possibility of the structure being affected by external forces. At the same time, the support rings located on the same horizontal plane can maintain the horizontal balance of the structure, making the entire support system more balanced and stable.

[0035] In some preferred embodiments, both the outer ring girder 4 and the inner ring girder 5 include annular composite reinforcement 14 and longitudinal composite reinforcement 15, with multiple annular composite reinforcement 14 arranged at equal intervals along the length of the pier column 20, and multiple longitudinal composite reinforcement 15 arranged at equal intervals along the periphery of the annular composite reinforcement 14; the annular bottom girder 6 includes annular composite reinforcement 14, which are evenly distributed from the inner ring girder 5 towards the outer ring girder 4, and are provided with transverse composite reinforcement 16 corresponding to and connecting the inner ring girder 5 and the outer ring girder 4; the surfaces of the inner ring girder 5, the outer ring girder 4, and the annular bottom girder 6 are all provided with a mesh cover 17, and the mesh cover 17 is made of synthetic fiber material. In this design, the structures of the outer ring girder 4, the inner ring girder 5, and the annular bottom girder 6 cooperate with each other to form a stable support system. The evenly spaced arrangement of the annular composite reinforcement 14 and the longitudinal composite reinforcement 15 effectively enhances the load-bearing capacity and stability of the overall structure. The annular composite ribs 14 in the annular bottom net 6 connect the inner ring net box 5 and the outer ring net box 4 through the transverse composite ribs 16, enabling the entire support system to better coordinate and transmit forces when under stress, maintaining the overall stability of the structure. In addition, a mesh 17 made of synthetic fiber material is provided on the surface. On the one hand, by covering the net 17, the cultured organisms can be effectively prevented from escaping from the net box, ensuring the smooth progress of the culture process. At the same time, the mesh 17 also provides protection, preventing external environmental factors from affecting the cultured organisms and improving the stability and safety of the culture system.

[0036] In some preferred embodiments, a circular walking platform 18 is provided around the second reinforcing support ring 9 at the top of the outer ring cage 4, and a circular handrail 19 is provided around the circular walking platform 18. The circular walking platform 18 around the second reinforcing support ring 9 at the top of the outer ring cage 4 facilitates inspection and maintenance operations by workers on the cage. The circular handrail 19 around the circular walking platform 18 provides better support and protection for workers, ensuring their safety while working on the cage. This design can greatly improve work efficiency and safety.

[0037] The beneficial effects of this invention include:

[0038] 1. Combining bridge pier anti-collision devices with marine aquaculture cages can simultaneously reduce infrastructure costs, improve economic efficiency, and protect bridge piers. By installing anti-collision devices on bridge piers, damage caused by accidental collisions between ships and piers can be effectively avoided, reducing bridge maintenance costs. Simultaneously, installing marine aquaculture cages on bridge piers enables marine aquaculture, improving the utilization efficiency of marine resources and thus bringing economic benefits.

[0039] 2. The wave-damping ability of the wire mesh cage 17 can effectively reduce the scouring problem of bridge piers. When external waves such as ocean waves and swells act on the wire mesh cage 17, the wire mesh cage 17 can play a certain role in shock absorption and wave damping, absorbing some of the wave energy, thereby reducing the scouring of bridge piers. It is an effective means of protecting and maintaining the bridge structure.

[0040] 3. Building the net cages on bridge piers ensures their stable suspension on the bridge structure and facilitates the supply of electricity to them. By constructing net cages on bridge piers, the bridge structure can be better utilized, providing the electricity needed for marine aquaculture and improving its overall utilization efficiency.

[0041] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0042] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A collision prevention device for bridge piers in non-navigable spans based on marine aquaculture cages, characterized in that, It includes: A floating aquaculture cage (1) has a central installation channel (2) running through its top and bottom. The central installation channel (2) is used for the passage of a pier (20) of a bridge located in a non-navigable sea area, and there is a gap between the central installation channel (2) and the pier (20). The floating aquaculture cage (1) has an annular aquaculture space (3) located on the outer periphery of the central installation channel (2). The floating aquaculture cage (1) includes an outer ring cage (4), an inner ring cage (5), and an annular bottom net (6); the inner ring cage (5) is located around the pier (20) along the length of the pier (20), and its interior is the central installation channel (2); the inner ring cage (5) is provided with reinforcing support rods (7) around its perimeter, and the other end of the reinforcing support rods (7) is connected to the outer ring cage (4); the annular bottom net (6) is located at the bottom of the outer ring cage (4) and connected to the bottom of the inner ring cage (5); the annular aquaculture space (3) is located between the outer ring cage (4) and the inner ring cage (5). The energy dissipation element (10) includes a first plate (102), a second plate (103) and a third plate (101); the second plate (103) and the first plate (102) are spaced at a design distance in the radial direction of the pier (20), and the two second plates (103) are respectively connected to the first plate (102) through the third plate (101) to form an arch structure; and the third plate (101) is made of rubber material.

2. The anti-ship collision device for bridge piers in non-navigable spans based on marine aquaculture cages as described in claim 1, characterized in that: The outer ring mesh box (4), the inner ring mesh box (5), and the annular bottom mesh (6) are all made of fiber-reinforced composite materials.

3. The anti-ship collision device for bridge piers in non-navigable spans based on marine aquaculture cages as described in claim 1, characterized in that: The inner ring cage (5) is provided with a first reinforcing support ring (8) at the top and middle periphery, and the outer ring cage (4) is provided with a second reinforcing support ring (9) at the top and middle periphery. The first reinforcing support ring (8) at the top and the second reinforcing support ring (9) at the top are connected by the reinforcing support rod (7), and the first reinforcing support ring (8) and the second reinforcing support ring (9) below them are also connected by the reinforcing support rod (7).

4. The anti-ship collision device for bridge piers in non-navigable spans based on marine aquaculture cages as described in claim 1, characterized in that: The second plate (103) and the pier (20) are fixedly connected, and the first plate (102) and the inner ring mesh box (5) are in frictional contact; or, The second plate (103) and the inner ring mesh box (5) are fixedly connected, and the first plate (102) and the pier (20) are in frictional contact.

5. The anti-ship collision device for bridge piers in non-navigable spans based on marine aquaculture cages as described in claim 3, characterized in that: The reinforcing support rod (7), the first reinforcing support ring (8) and the second reinforcing support ring (9) are all double-layer structures including an inner layer (11) and an outer layer (12), and are all made of fiber-reinforced composite materials. Buffer material (13) is provided in the inner layer (11) and between the inner layer (11) and the outer layer (12).

6. The anti-ship collision device for bridge piers in non-navigable spans based on marine aquaculture cages as described in claim 3, characterized in that: There is a height difference between the first reinforcing support ring (8) located at the top of the inner ring cage (5) and the second reinforcing support ring (9) located at the top of the outer ring cage (4); The first reinforcing support ring (8) located on the middle periphery of the inner ring cage (5) and the second reinforcing support ring (9) located on the middle periphery of the outer ring cage (4) are on the same horizontal plane.

7. The anti-ship collision device for bridge piers in non-navigable spans based on marine aquaculture cages as described in claim 3, characterized in that: Both the outer ring cage (4) and the inner ring cage (5) include annular composite reinforcement (14) and longitudinal composite reinforcement (15), and multiple annular composite reinforcement (14) are equally spaced along the length direction of the pier (20), and multiple longitudinal composite reinforcement (15) are equally spaced along the periphery of the annular composite reinforcement (14). The ring bottom mesh (6) includes the ring composite rib (14), which is evenly distributed from the inner ring mesh box (5) to the outer ring mesh box (4), and is provided with transverse composite ribs (16) that correspond to and connect the inner ring mesh box (5) and the outer ring mesh box (4). The inner ring mesh box (5), the outer ring mesh box (4) and the annular bottom mesh (6) are all provided with mesh covers (17), and the mesh covers (17) are made of synthetic fiber materials.

8. The anti-ship collision device for bridge piers in non-navigable spans based on marine aquaculture cages as described in claim 3, characterized in that: A circular walking platform (18) is provided on the periphery of the second reinforcing support ring (9) located at the top of the outer ring cage (4), and a circular handrail (19) is provided on the periphery of the circular walking platform (18).

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