Net bag-shaped submarine cable protection structure

Abstract

The utility model relates to a net bag shaped submarine cable protection structure comprising a protection net bag and aggregate, the protection net bag comprises an upper layer protection net and a lower layer protection net, the aperture of the upper layer protection net and the aperture of the lower layer protection net are both smaller than the external diameter of the aggregate, and a filling cavity is formed between the upper layer protection net and the lower layer protection net. And the aggregate is filled in the filling cavity and forms a whole with the protective net bag. According to the protection structure, the flexibility and the deformability of the protection net bag are utilized, so that the protection structure can well adapt to fluctuation changes of submarine topography, the protection net bag can be tightly attached whether cables in a reef group area are suspended or complex landforms in a near-shore area, all-around protection is provided for the cables, and cable damage caused by topographic factors is avoided; and the broken stones filled in the protective net bag and the alloy steel wire rope net bag form an organic whole, so that external force can be dispersed and absorbed when the impact of water flow and sea waves is resisted, the cable is effectively prevented from being directly scoured and impacted, and the risk of cable exposure and damage is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of submarine cable protection technology, specifically a net-shaped submarine cable protection structure. Background Technology

[0002] In today's globalized world, the development and utilization of marine resources are becoming increasingly frequent. As a key infrastructure for marine power transmission, communication, and the normal operation of various marine facilities, the safe and stable operation of submarine cables is of paramount importance. However, the marine environment in which submarine cables operate is extremely complex and harsh, especially in areas with significant topographic relief, such as areas with dense reefs and nearshore areas, where submarine cables often face severe challenges.

[0003] Traditional submarine cable protection methods have revealed numerous shortcomings when dealing with complex terrain. For example, rigid protective structures cannot flexibly adapt to changes in terrain when encountering obstacles such as reefs, easily creating stress concentration points. This not only makes them prone to damage but can also cause excessive compression or abrasion to the cable, severely affecting its insulation performance and mechanical strength. While some simple flexible protective materials can adapt to terrain undulations to a certain extent, their loose structure and poor overall integrity make them susceptible to displacement, deformation, or even tearing under the strong impact of water currents and repeated waves, failing to provide a durable and reliable protective barrier for the cable. Furthermore, existing protection methods are also insufficient in resisting the effects of water currents and waves. Ordinary protective structures are unable to effectively disperse and absorb the impact of water currents and waves, making the protective layer prone to being washed away or eroded, thus triggering the risk of secondary scouring of the submarine cable and further increasing the possibility of cable damage. Moreover, the construction process of traditional protection technologies is often complex and cumbersome, requiring specialized equipment and a large investment of manpower and resources, and the construction period is long. This not only increases costs, but may also cause additional damage to submarine cables due to improper operation during the construction process, affecting the use of submarine cables.

[0004] In summary, traditional submarine cable protection technologies are insufficient to meet the protection requirements of submarine cables in complex terrain. Therefore, there is an urgent need to develop a new type of submarine cable protection structure that can effectively withstand complex marine environments, possesses good integrity and stability, and is easy to manufacture and construct while being cost-effective. Utility Model Content

[0005] In order to overcome the defects in the prior art, the purpose of this utility model is to provide a net-shaped submarine cable protection structure. This protection structure is ingenious and can effectively ensure the safe operation of submarine cables in complex terrain, guarantee the stable transmission of marine power and communication systems, enhance the user experience, and promote the application of the net-shaped submarine cable protection structure in the field of submarine cable protection technology.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a net-shaped submarine cable protection structure for covering the outside of a submarine cable; the protection structure includes a protective net and aggregate, the protective net being composed of an upper protective net and a lower protective net, and the aperture of both the upper and lower protective nets being smaller than the outer diameter of the aggregate, a filling cavity being formed between the upper and lower protective nets, and the aggregate being filled in the filling cavity and forming a whole with the protective net.

[0007] As a preferred embodiment of this utility model, the protective net is provided with an anchoring component on its exterior. The anchoring component includes a connector and an anchoring ring. The connector is used to connect the protective net and the anchoring ring. A fixing member is inserted inside the anchoring ring to cover the protective structure outside the submarine cable.

[0008] As a preferred embodiment of this utility model, the anchoring components are in multiple sets, and the multiple sets of anchoring components are respectively disposed at the corners of the protective net bag.

[0009] As a preferred embodiment of this utility model, another anchoring component is provided between the anchoring components at two adjacent corners.

[0010] In a preferred embodiment of this utility model, the connecting member is an alloy steel wire rope.

[0011] In a preferred embodiment of this utility model, the upper protective net and the lower protective net are integrally woven together.

[0012] As a preferred embodiment of this utility model, both the upper protective net and the lower protective net are made of alloy steel wire.

[0013] As a preferred embodiment of this utility model, the upper protective net and the lower protective net are woven using any one of the following methods: flat weave, twill weave, and overlock weave.

[0014] In a preferred embodiment of this utility model, the aggregate is one or more of crushed stone, crushed brick, or sand and gravel.

[0015] As a preferred embodiment of this utility model, the mesh openings of the upper protective net and the lower protective net are diamond-shaped, square, or round.

[0016] Compared with existing technologies, the beneficial effects of this utility model are as follows: The mesh-like submarine cable protection structure of this utility model is ingenious. By setting up a protective mesh and aggregate, and utilizing the flexibility and deformability of the protective mesh, it can adapt well to the undulating changes in seabed topography. Whether the cable is suspended in a reef area or in the complex terrain of the nearshore area, it can fit tightly, providing all-round protection for the cable and avoiding cable damage caused by terrain factors. Furthermore, by filling the protective mesh with gravel and alloy steel wire rope mesh to form an organic whole, it can disperse and absorb external forces when resisting the impact of water currents and waves, effectively preventing the cable from being directly scoured and impacted, greatly reducing the risk of cable exposure and damage. At the same time, its good integrity makes it less prone to displacement and deformation, and it is not easily scourned on the seabed. It can stably protect the submarine cable for a long time, ensuring the safe operation of the submarine cable in complex terrain, guaranteeing the stable transmission of marine power and communication systems, enhancing the user experience, and facilitating the promotion and application of the aforementioned mesh-like submarine cable protection structure in the field of submarine cable protection technology.

[0017] Furthermore, by setting up anchoring rings, this utility model can, on the one hand, easily fix the protective net to the seabed, making the installation process of the protective net simple and efficient, reducing construction time and costs, improving the implementation efficiency of protective projects, and facilitating large-scale promotion and application; on the other hand, the anchoring rings also facilitate the hoisting and transportation of the entire protective structure, that is, the protective net can be hoisted to a designated location through the anchoring rings, reducing the difficulty of operation and thus enhancing the user experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a mesh-like submarine cable protection structure in one embodiment;

[0019] Figure 2 This is a schematic diagram illustrating the usage state of a mesh-like submarine cable protection structure in one embodiment.

[0020] Reference numerals: 1. Protective net bag; 1-1. Upper protective net; 1-2. Lower protective net; 1-3. Filling cavity; 2. Aggregate; 3. Anchoring component; 3-1. Connector; 3-2. Anchoring ring; 4. Submarine cable. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] Example: Figures 1 to 2 As shown, a net-like submarine cable protection structure is used to cover the submarine cable 4 to protect the shallowly exposed submarine cable 1, thereby ensuring the safe operation of the submarine cable 4 in complex terrain and guaranteeing the stable transmission of marine power and communication systems. In this embodiment, the protective structure mainly consists of a protective net 1 and aggregate 2. The protective net 1 is composed of an upper protective net 1-1 and a lower protective net 1-2, which can be woven into a pocket shape, i.e., three sides are sewn together and one side is open, with the opening designed to place the aggregate 2 inside. A filling cavity 1-3 is formed between the upper protective net 1-1 and the lower protective net 1-2. The aggregate 2 is filled in the filling cavity 1-3 and forms a whole with the protective net 1. The filling of the aggregate 2 not only increases the weight of the protective net 2, allowing it to better conform to the seabed terrain, but also, when subjected to water currents and waves, the interaction between the aggregate 2 can effectively buffer external forces, further enhancing the protective effect on the submarine cable 4. The apertures of the upper protective net 1-1 and the lower protective net 1-2 are both smaller than the outer diameter of the aggregate 2. This ensures that the aggregate 2 can be filled while preventing it from leaking out during use. In other words, the aperture size of the protective net 1 is designed according to the particle size of the aggregate 2.

[0025] In the actual manufacturing process, specialized weaving equipment and techniques are used to weave the special alloy steel wire rope into a net shape to form the aforementioned protective net bag 1. Special alloy steel wire rope refers to steel wire rope manufactured by adding specific alloying elements (such as manganese, silicon, chromium, etc.) or using special processes, possessing high strength, high wear resistance, and excellent corrosion resistance. This type of steel wire rope is typically used in special environments, such as marine and chemical plants where corrosion is highly corrosive. The chemical composition of submarine steel wire rope includes chromium (Cr), manganese (Mn), nitrogen (N), tungsten (W), and copper (Cu), etc. These elements can improve the strength and corrosion resistance of the steel wire. It is usually treated with galvanizing or zinc-aluminum alloy plating to enhance corrosion resistance. In the actual weaving process, a multi-strand structure, such as 6×36WS, can be used to distribute the load and improve strength. Furthermore, the metal filling coefficient can be increased by compacting the special alloy steel wire rope, thereby increasing the breaking strength and extending the service life of the protective structure. During the actual weaving process, it is also necessary to ensure the firmness of the connection between each wire rope to ensure the overall stability of the net-shaped submarine cable protection structure.

[0026] The aggregate 2 mentioned above can be one or more combinations of crushed stone, crushed brick, or sand and gravel, including but not limited to. In actual use, hard and corrosion-resistant crushed stone should be selected and evenly filled into the woven protective net bag 1. The specific filling amount of aggregate 2 is reasonably determined according to the size of the protective net bag 1 and the protection requirements to achieve the best protection effect and weight distribution, so as to provide reasonable protection for the submarine cable 4. After the aggregate 2 is filled, the opening of the protective net bag 1 is sewn together with alloy steel wire rope, and the protective net bag 1 and aggregate 2 are properly arranged and tightened to ensure the stability of the aggregate 2 within the protective net bag 1.

[0027] In this embodiment, an anchoring component 3 is also provided on the outside of the aforementioned protective net bag 1. The anchoring component 3 includes a connector 3-1 and an anchoring ring 3-2. The connector 3-1 is used to connect the protective net bag 1 and the anchoring ring 3-2. The anchoring ring 3-2 is used to insert a fixing member to cover the protective structure outside the submarine cable 4. Through the anchoring component 3, on the one hand, the protective net bag 1 can be easily fixed to the bottom surface of the seabed, making the installation process of the protective net bag 1 simple and efficient, reducing construction time and cost, improving the implementation efficiency of the protective project, and facilitating large-scale promotion and application. On the other hand, the anchoring ring 3-2 also facilitates the hoisting and transportation of the entire protective structure. That is, through the anchoring ring 3-2, the protective net bag 1 can be hoisted to a designated position, reducing the difficulty of operation and thus enhancing the user experience. The aforementioned connector 3-1 can be a special alloy steel wire rope. The anchoring ring 3-2 and the aforementioned connector 3-1, as well as the aforementioned connector 3-1 and the aforementioned protective net bag 1, are connected by a fixed method, such as welding, riveting, or special mechanical connection, to ensure that the anchoring ring 3-2 can withstand the weight of the protective net bag 1 and the tension during construction, and to ensure the reliability of each connection.

[0028] To ensure the stability and reliability of the protective net 1 and enable it to better perform its protective function, in this embodiment, the anchoring components 3 are arranged in multiple sets, and these sets of anchoring components 3 are respectively installed at the corners of the protective net 1. During use, the protective net 1 may be subjected to external forces from various directions, such as the impact of water currents and waves. Placing the anchoring components 3 at the corners of the protective net 1 can evenly distribute these external forces to multiple anchoring points, preventing deformation or damage to the protective net 1 due to excessive localized stress. The corners of the protective net 1 are also key structural components. By setting the anchoring components 3 at the corners, displacement or shaking of the protective net 1 during use can be effectively prevented, ensuring it remains in the predetermined position. Furthermore, due to the complex seabed topography, placing the anchoring components 3 at the corners of the protective net 1 can better adapt to these irregular surfaces, ensuring that the protective net 1 can be firmly fixed in various complex environments. Multiple sets of anchoring components 3 can be adjusted according to actual needs, such as adjusting the position and angle of the anchoring points, to adapt to different installation requirements. This flexibility can improve the applicability and installation efficiency of the protective net bag 1. To further reduce the phenomenon of local stress concentration in the protective net bag 1, another anchoring component 3 is provided between the above-mentioned anchoring components 3 at two adjacent corners in this embodiment. Through the above-mentioned arrangement, the local damage to the protective net bag 1 caused by long-term uneven stress can be further reduced, thereby extending the service life of the protective net bag 1 and reducing the cost of use. The above-mentioned multiple sets of anchoring components 3 can reduce the shaking and deformation of the protective net bag 1, and reduce the maintenance costs caused by frequent adjustments and repairs.

[0029] In this embodiment, the upper protective net 1-1 and the lower protective net 1-2 are integrally woven together. This integrally woven protective net has no obvious seams or connection points between the upper and lower layers, resulting in stronger overall integrity. This structure can better distribute and withstand external forces, avoiding damage to the overall structure due to weak local connection points. Furthermore, when subjected to impact or external forces, the upper and lower protective nets can work together to share the load. This synergistic effect improves the overall strength and stability of the protective net, enabling it to maintain good protective performance even under complex working conditions, thereby achieving the protection of the submarine cable 4.

[0030] In this embodiment, the upper protective net 1-1 and the lower protective net 1-2 are woven using any one of the following methods: plain weave, twill weave, and overlock weave. Plain weave results in a flatter surface and higher strength; twill weave provides some elasticity and can adapt to irregular installation surfaces; overlock weave prevents the mesh from loosening and improves the overall stability of the protective net.

[0031] The mesh openings of the upper protective net 1-1 and the lower protective net 1-2 are diamond-shaped, square, or round, and can be customized as needed.

[0032] At the submarine cable protection project site, the protective net bag 1 is hoisted to the location of the submarine cable 4 requiring protection using hoisting equipment and anchoring rings 3-2. Based on the seabed topography and the route of the submarine cable 4, the protective net bag 1 is laid and adjusted to ensure a tight fit between the submarine cable 4 and the seabed topography. If necessary, multiple protective net bags 1 can be connected using anchoring rings 3-2 or other connectors to form a continuous protection system, ensuring comprehensive protection of the submarine cable 4.

[0033] This embodiment presents a net-like submarine cable protection structure. This ingenious structure, by incorporating a protective net 1 and aggregate 2, utilizes the flexibility and deformability of the net 1 to adapt well to varying seabed topography. Whether the cable is suspended in a reef area or in the complex terrain of nearshore areas, it fits snugly, providing comprehensive protection and preventing cable damage caused by topographical factors. Furthermore, the gravel filled inside the protective net 1 forms an organic whole with the alloy steel wire rope net, dispersing and absorbing external forces when resisting the impact of water currents and waves, effectively preventing direct scouring and impact on the cable, greatly reducing the risk of cable exposure and damage. Simultaneously, its good integrity prevents displacement and deformation, reducing the risk of secondary scouring on the seabed, and providing long-term stable protection for the submarine cable. This ensures the safe operation of the submarine cable in complex terrain, guarantees the stable transmission of marine power and communication systems, enhances the user experience, and promotes the widespread application of this net-like submarine cable protection structure in the field of submarine cable protection technology.

[0034] Furthermore, by setting the anchoring ring 3-2 in this embodiment, on the one hand, the protective net bag 1 can be easily fixed to the bottom surface of the seabed, making the installation process of the protective net bag 1 simple and efficient, reducing construction time and cost, improving the implementation efficiency of the protective project, and facilitating large-scale promotion and application; on the other hand, the anchoring ring 3-2 also facilitates the hoisting and transportation of the entire protective structure, that is, the protective net bag can be hoisted to the designated position through the anchoring ring 3-2, reducing the difficulty of operation and thus enhancing the user experience.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. 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 the present invention; therefore, the present invention 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 disclosed herein.

[0036] Although this document frequently uses reference numerals from the accompanying drawings, such as 1. protective net bag; 1-1. upper protective net; 1-2. lower protective net; 1-3. filling cavity; 2. aggregate; 3. anchoring assembly; 3-1. connector; 3-2. anchoring ring; and 4. submarine cable, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A mesh-like submarine cable protection structure, characterized in that: Used to cover the outside of submarine cable (4); the protective structure includes a protective net bag (1) and aggregate (2). The protective net bag (1) is composed of an upper protective net (1-1) and a lower protective net (1-2). The aperture of the upper protective net (1-1) and the lower protective net (1-2) is smaller than the outer diameter of the aggregate (2). A filling cavity (1-3) is formed between the upper protective net (1-1) and the lower protective net (1-2). The aggregate (2) is filled in the filling cavity (1-3) and forms a whole with the protective net bag (1).

2. The mesh-like submarine cable protection structure according to claim 1, characterized in that: The protective net (1) is provided with an anchoring component (3) on its outside. The anchoring component (3) includes a connector (3-1) and an anchoring ring (3-2). The connector (3-1) is used to connect the protective net (1) and the anchoring ring (3-2). The anchoring ring (3-2) is used to insert a fixing member to cover the protective structure outside the submarine cable (4).

3. The mesh-like submarine cable protection structure according to claim 2, characterized in that: The anchoring components (3) are in multiple sets, and the multiple sets of anchoring components (3) are respectively located at the corners of the protective net bag (1).

4. The mesh-like submarine cable protection structure according to claim 3, characterized in that: Another anchoring component (3) is provided between the two adjacent corner anchoring components (3).

5. The mesh-like submarine cable protection structure according to claim 2, characterized in that: The connector (3-1) is an alloy steel wire rope.

6. The mesh-like submarine cable protection structure according to claim 1, characterized in that: The upper protective net (1-1) and the lower protective net (1-2) are woven together as a single unit.

7. A mesh-like submarine cable protection structure according to claim 1 or 6, characterized in that: Both the upper protective net (1-1) and the lower protective net (1-2) are made of alloy steel wire.

8. The mesh-like submarine cable protection structure according to claim 7, characterized in that: The upper protective net (1-1) and the lower protective net (1-2) are woven using any one of the following methods: plain weave, twill weave, and overlock weave.

9. The mesh-like submarine cable protection structure according to claim 1, characterized in that: The aggregate (2) is one or more of crushed stone, crushed brick or sand and gravel.

10. The mesh-like submarine cable protection structure according to claim 1, characterized in that: The mesh of the upper protective net (1-1) and the lower protective net (1-2) is diamond-shaped, square, or round.

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