Anti-scouring submarine cable structure and construction method thereof

Abstract

The invention belongs to the technical field of offshore wind power, and discloses an anti-scour submarine cable structure and a construction method thereof.The anti-scour submarine cable structure comprises a submarine cable body and a protection assembly, the protection assembly comprises a connecting base, the connecting base is fixedly connected with the submarine cable body, protective sleeves are arranged on the two sides of the connecting base, bionic grass is laid on the protective sleeves, and the connecting base is fixedly connected with the submarine cable body. One end, far away from the connecting seat, of each protective sleeve is provided with a water absorption expansion part, the protective sleeves on the two sides wrap the submarine cable body from the two sides of the submarine cable body respectively, and the two water absorption expansion parts are bonded and fixed through hydrolytic glue capable of being dissolved in water. The submarine cable body and the anti-scour component are connected into a whole, laying of the submarine cable can be easily achieved, meanwhile, the anti-scour problem of the submarine cable is solved, the construction cost is low, operation is easy, divers do not need to dive into the seabed to conduct installation operation of the anti-scour component, and operation safety is high.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power, and in particular to an anti-scour submarine cable structure and a construction method thereof. Background Art

[0002] Submarine cables (hereinafter referred to as "submarine cables") are mainly used to transmit electricity generated by offshore wind turbines. After the laying of submarine cables, they are laid and operated in the marine environment, facing many complex challenges. For example, after the laying of submarine cables, there will be obstacles to the advancement of waves and currents, resulting in changes in the surrounding flow field. The shear stress on the seabed surface around the submarine cables will increase sharply, driving the sediment on the seabed surface to leave the seabed and move downstream with the water flow. Under the action of long-term, scour pits will be formed around the submarine cables, causing the submarine cables to be partially suspended, making the submarine cables vulnerable to damage or damage, affecting the stability of the submarine cable performance.

[0003] In order to solve the problem of submarine cables being easily scoured during laying, bionic grass anti-scour protection technology is currently often used. However, the traditional bionic grass anti-scour method is cumbersome to install and requires the use of offshore cranes for offshore operations. At the same time, divers are required to dive to the seabed to anchor the bionic grass to the seabed. The installation cost is high and the operating risk for operators is high. Summary of the invention

[0004] The purpose of the present invention is to provide an anti-scouring submarine cable structure and a construction method thereof, which connects the submarine cable body and the anti-scouring components to form an integral whole, can easily realize the laying of the submarine cable, and solve the anti-scouring problem of the submarine cable at the same time, has low construction cost and simple operation, and does not require divers to dive into the seabed to install the anti-scouring components, and has high operation safety.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] On the one hand, an anti-scour submarine cable structure is provided, including a submarine cable body and a protective component, the protective component including a connecting seat, the connecting seat is fixedly connected to the submarine cable body, protective sleeves are arranged on both sides of the connecting seat, the protective sleeves are paved with bionic grass, and a water-absorbing and swelling component is arranged at one end of the protective sleeve away from the connecting seat, the protective sleeves on both sides respectively wrap the submarine cable body from both sides of the submarine cable body, and the two water-absorbing and swelling components are bonded and fixed by means of water-soluble hydrolytic glue.

[0007] In one of the embodiments, the submarine cable body comprises a core, the outside of which is wrapped with an insulating layer, a shielding layer and a protective layer in sequence, and the protective layer is fixedly connected to the connecting seat.

[0008] In one of the embodiments, a card slot is provided on the protective layer, and a card protrusion that is card-engaged with the card slot is provided on the connecting seat.

[0009] In one embodiment, the length directions of the connecting seat, the protective sleeve and the water-swellable component extend along the axial direction of the submarine cable body.

[0010] In one of the embodiments, the protective sleeves and the water-swellable components on both sides are symmetrically arranged about the radial center axis of the submarine cable body.

[0011] In one embodiment, the bionic grass is distributed in a matrix on the protective sleeve, the length direction of the matrix is ​​parallel to the axial direction of the submarine cable body, and the width direction of the matrix is ​​parallel to the radial direction of the submarine cable body.

[0012] In one embodiment, the water-swellable component comprises an elastic hydrophilic non-woven fabric outer shell, a containing cavity is provided in the hydrophilic non-woven fabric outer shell, and the containing cavity is filled with a water-swellable agent.

[0013] In one of the embodiments, a locking member is provided on the connecting seat, and the locking member includes a locking belt, and the locking belt includes a first locking belt and a second locking belt respectively fixed at two ends of the connecting seat, the first locking belt and the second locking belt are respectively arranged on both sides of the submarine cable body along the radial direction, the first locking belt and the second locking belt respectively wrap the submarine cable body from both sides of the submarine cable body, a locking buckle is provided at one end of the first locking belt away from the connecting seat, and a locking portion is provided at one end of the second locking belt away from the connecting seat, and the locking portion is locked and connected with the locking buckle.

[0014] In one of the embodiments, an elastic member is provided on the side of the protective sleeve facing the submarine cable body, and when the protective sleeve is wrapped around the outside of the submarine cable body, the elastic member is in a compressed state.

[0015] On the other hand, a construction method of an anti-scouring submarine cable structure is also provided, providing the above-mentioned anti-scouring submarine cable structure, comprising the following steps:

[0016] The submarine cable body is fixedly connected to the connection seat, and the bionic grass is laid on the protective sleeves on both sides of the connection seat, and the water-absorbing expansion component is installed on the end of the protective sleeve away from the connection seat;

[0017] Wrapping the submarine cable body with the protective sleeves on both sides of the submarine cable body from both sides of the submarine cable body, and bonding and fixing the water-swellable components at both ends with water-soluble hydrolyzed glue to form an anti-scouring submarine cable wrapping structure;

[0018] The anti-scouring submarine cable wrapping structure is laid at a preset position on the seabed by using a power device, the hydrolyzed gel is dissolved under the action of seawater, the protective sleeves on both sides of the submarine cable body are opened toward both sides of the submarine cable body and laid flat on the seabed, exposing the bionic grass to form an anti-scouring submarine cable deployment structure, and the water-absorbing and swelling components at both ends absorb water and swell to press and fix the protective sleeves and the submarine cable body on the seabed.

[0019] Beneficial effects of the present invention:

[0020] An anti-scour submarine cable structure of the present invention is formed by fixing a submarine cable body to a connection seat of a protective component, and wrapping the submarine cable body with protective sleeves at both ends of the connection seat, wherein the water-swelling components at both ends of the protective sleeve are fixed by bonding with hydrolyzed glue to form an anti-scour submarine cable wrapping structure, so that it is convenient to lay the entire anti-scour submarine cable wrapping structure on the seabed through a power device. After the anti-scour submarine cable wrapping structure is laid on the seabed, the hydrolyzed glue dissolves under the action of seawater, and the water-swelling components stretch and open toward both sides of the submarine cable body along with the protective sleeve. At the same time, the water-swelling components absorb water and expand, pressing and fixing the protective sleeve on the seabed. Subsequently, the protective sleeve is laid on both sides of the submarine cable body, so that the bionic grass on the protective sleeve stretches and opens. When the water flow slows down and flows through the bionic grass, it is affected by the flexible viscous damping of the bionic grass, the flow rate is reduced, and the ability of the water flow to scour the seabed is slowed down.

[0021] Furthermore, due to the reduction in flow velocity and the obstruction of the bionic grass, the sediment carried in the water flow is deposited under the action of gravity, forming a submarine sandbar in the bionic grass arrangement area, thereby slowing down the scouring of the seabed and avoiding the occurrence of secondary scouring problems. In addition, when the seabed water flows through the water-absorbing and expanding components at the edge, the water-absorbing and expanding components can also slow down the water flow, preventing the high-speed water flow from directly scouring the roots of the bionic grass, thereby effectively preventing the bionic grass from falling over and improving the anti-scouring effect of the bionic grass. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a structural schematic diagram of an anti-scour submarine cable structure (wrapped state) in one of the embodiments;

[0023] Figure 2 is a structural schematic diagram of an anti-scour submarine cable structure (in an unfolded state) in one of the embodiments;

[0024] Figure 3 is a schematic diagram of a side structure of an anti-scour submarine cable structure (wrapped state) in one embodiment;

[0025] Figure 4 is a schematic diagram of a side structure of an anti-scour submarine cable structure (in an unfolded state) in one embodiment;

[0026] Figure 5is a schematic diagram of the connection structure of a submarine cable body and a protective component in one embodiment;

[0027] Figure 6 It is a partial cross-sectional structural schematic diagram of a water-swellable component in one embodiment.

[0028] In the figure:

[0029] 100, submarine cable body; 110, core; 120, insulation layer; 130, shielding layer; 140, protective layer; 141, slot; 142, stop groove; 200, protection component; 210, connection seat; 211, cam; 212, extension part; 220, protection sleeve; 300, bionic grass; 400, water-absorbing and swelling component; 410, hydrophilic non-woven fabric jacket; 420, accommodating cavity; 430, water-absorbing and swelling agent; 500, hydrolyzed glue; 600, locking member; 610, first locking belt; 611, lock buckle; 620, second locking belt; 621, locking part; 700, elastic member. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] like Figures 1 to 6 As shown, an anti-scouring submarine cable structure of this embodiment includes a submarine cable body 100 and a protective component 200, wherein the protective component 200 includes a connecting seat 210, the connecting seat 210 is fixedly connected to the submarine cable body 100, protective sleeves 220 are arranged on both sides of the connecting seat 210, bionic grass 300 is laid on the protective sleeves 220, and a water-absorbing expansion component 400 is arranged at one end of the protective sleeve 220 away from the connecting seat 210, and the protective sleeves 220 on both sides respectively wrap the submarine cable body 100 from both sides of the submarine cable body 100, and the two water-absorbing expansion components 400 are bonded and fixed by a hydrolyzed glue 500 that can be dissolved in water. Among them, the root of the bionic grass 300 is embedded and sewn inside the protective sleeve 220, and the upper part of the bionic grass 300 is made of flexible material. The upper part of the bionic grass 300 naturally stretches when it encounters seawater, so that the passing seawater flow is buffered, reducing the scouring intensity of the water flow on the submarine cable body 100.

[0035] In this embodiment, the submarine cable body 100 is fixedly connected to the connection seat 210 of the protective assembly 200, and the submarine cable body 100 is wrapped by the protective sleeves 220 at both ends of the connection seat 210, wherein the water-swelling components 400 at both ends of the protective sleeve 220 are bonded and fixed by the hydrolyzed glue 500 to form an anti-scouring submarine cable wrapping structure, so that it is convenient to lay the entire anti-scouring submarine cable wrapping structure on the seabed through a power device (not shown). After the anti-scouring submarine cable wrapping structure is laid on the seabed, the hydrolyzed glue 500 dissolves under the action of seawater, and the water-swelling components 400 stretch and open toward the two sides of the submarine cable body 100 along with the protective sleeve 220, and at the same time, the water-swelling components 400 absorb water and expand, pressing and fixing the protective sleeve 220 on the seabed. Then the protective cover 220 is laid on both sides of the submarine cable body 100, so that the bionic grass 300 on the protective cover 220 is stretched and opened. When the water flow is decelerated and flows through the bionic grass 300, the flow velocity is reduced by the flexible viscous damping of the bionic grass 300, which slows down the scouring ability of the water flow on the seabed.

[0036] Furthermore, due to the reduction in flow velocity and the obstruction of the bionic grass 300, the sediment carried in the water flow is deposited under the action of gravity, forming a seabed sandbar in the area where the bionic grass 300 is arranged, thereby slowing down the scouring of the seabed and avoiding the problem of secondary scouring. In addition, when the seabed water flows through the water-absorbing and expanding component 400 at the edge, the water-absorbing and expanding component 400 can also slow down the water flow to prevent the high-speed water flow from directly scouring the roots of the bionic grass 300, thereby effectively preventing the bionic grass 300 from falling over and improving the anti-scouring effect of the bionic grass 300.

[0037] In one embodiment, the submarine cable body 100 includes a core 110, and the outer part of the core 110 is sequentially wrapped with an insulating layer 120, a shielding layer 130 and a protective layer 140, and the protective layer 140 is fixedly connected to the connection seat 210. Specifically, the core 110 is made of a conductive material, and the main material usually used in actual operation is copper, which is used to transmit electric energy; the insulating layer 120 is made of insulating material to ensure the insulation protection of the core 110; the shielding layer 130 ensures the effective transmission of electric energy in an environment with electromagnetic interference; the protective layer 140 is arranged on the outermost side as a sealing sheath, and is made of a high-strength and seawater corrosion-resistant composite material to extend the service life of the submarine cable body 100 and ensure that the submarine cable body 100 works normally in various harsh environments.

[0038] In one embodiment, a card slot 141 is provided on the protective layer 140, and a card protrusion 211 that is engaged with the card slot 141 is provided on the connecting seat 210. The card protrusion 211 is engaged with the card slot 141 to achieve fixed connection between the connecting seat 210 and the protective layer 140, thereby achieving fixed connection between the connecting seat 210 and the submarine cable body 100. Further, as shown in the figure, both ends of the card slot 141 are provided with a stop groove 142, and both ends of the card protrusion 211 are provided with an extension 212, and the extensions 212 at both ends are respectively inserted into the stop grooves 142 at both ends of the card slot 141, thereby increasing the stability of the connection and fixation between the connecting seat 210 and the submarine cable body 100.

[0039] In one embodiment, the length direction of the connecting seat 210, the protective sleeve 220 and the water-swellable component 400 extends along the axial direction of the cable body 100, so that the connecting seat 210 can support the entire cable body 100, and the protective sleeve 220 can ensure the protection of the entire cable body 100, while ensuring that the water-swellable component 400 can press and fix the protective sleeve 220 after absorbing water and expanding, and has the effect of slowing down the water flow speed of the bionic grass 300 on the protective sleeve 220.

[0040] In one of the embodiments, the protective sleeves 220 and the water-swellable components 400 on both sides are symmetrically arranged with respect to the radial center axis of the submarine cable body 100, so as to maintain the force balance of the protective sleeves 220 and the water-swellable components 400 on both sides, and at the same time maintain the force balance on both sides of the submarine cable body 100, thereby ensuring the stability of the overall structure.

[0041] In one of the embodiments, the bionic grass 300 is distributed in a matrix on the protective cover 220, and the length direction of the matrix is ​​parallel to the axial direction of the submarine cable body 100, and the width direction of the matrix is ​​parallel to the radial direction of the submarine cable body 100, so as to improve the bionic grass 300 to effectively block and reduce the water flow in the axial and radial directions of the submarine cable body 100, reduce the impact of the water flow on the submarine cable body 100, and help maintain the stability of the submarine cable body 100.

[0042] In one embodiment, the water-absorbing and expanding component 400 includes an elastic hydrophilic non-woven fabric jacket 410, and a receiving chamber 420 is provided in the hydrophilic non-woven fabric jacket 410, and the receiving chamber 420 is filled with a water-absorbing and expanding agent 430. After entering the seawater, the seawater easily enters the receiving chamber 420 through the hydrophilic non-woven fabric jacket 410, and the water-absorbing and expanding agent 430 in the receiving chamber 420 absorbs the seawater to expand, and expands the elastic hydrophilic non-woven fabric jacket 410 outward, so that the overall volume and weight of the water-absorbing and expanding component 400 are increased, so as to compress and fix the protective cover 220, and play a role in slowing down the water flow, so as to prevent the water flow from directly impacting the roots of the bionic grass 300. In actual operation, the water-absorbing and expanding agent 430 adopts polymer water-absorbing and expanding agent 430 particles, which have the advantages of high water absorption, strong water retention, high expansion, high stability, good safety, reusability, environmental protection, etc., and will not cause environmental pollution when used in the seabed for a long time, and can also be easily recycled and reused.

[0043] In one embodiment, a locking member 600 is provided on the connection seat 210, and the locking member 600 includes a locking belt. The locking belt includes a first locking belt 610 and a second locking belt 620 respectively fixed at two ends of the connection seat 210, and the first locking belt 610 and the second locking belt 620 are respectively arranged on both sides of the submarine cable body 100 along the radial direction, and the first locking belt 610 and the second locking belt 620 respectively wrap the submarine cable body 100 from both sides of the submarine cable body 100, and a locking buckle 611 is provided at one end of the first locking belt 610 away from the connection seat 210, and a locking portion 621 is provided at one end of the second locking belt 620 away from the connection seat 210, and the locking portion 621 is locked and connected with the locking buckle 611.

[0044] In actual operation, Figure 2 and Figure 4As shown, the locking member 600 is configured as a cable tie structure. Of course, the locking member 600 may also be a buckle, chain or other structure. As long as the connection seat 210 and the submarine cable body 100 can be fixedly connected and locked, such designs all fall within the protection scope of the present invention.

[0045] In one embodiment, an elastic member 700 is provided on the side of the protective sleeve 220 facing the submarine cable body 100, and when the protective sleeve 220 is wrapped around the outside of the submarine cable body 100, the elastic member 700 is in a compressed state. Specifically, when the overall structure is laid on the seabed, the hydrolyzed gel 500 dissolves under the action of seawater, and when the protective sleeve 220 stretches and opens toward both sides of the submarine cable body 100, the elastic member 700 can provide a force to separate the protective sleeve 220 from the submarine cable body 100, so that the protective sleeve 220 can be stretched and opened toward both sides of the submarine cable body 100 more easily, and the protective sleeve 220 is stretched to the maximum extent, avoiding wrinkles and folds when the protective sleeve 220 is opened, which affects the anti-scouring effect of the protective sleeve 220 and the bionic grass 300 installed on the protective sleeve 220.

[0046] In actual operation, the elastic member 700 is made of a spring, which is simple to make and easy to install. Of course, other elastic materials such as elastic telescopic rods, elastic rubber, etc. can also be used. As long as it can provide a separation force when the protective cover 220 is separated from the submarine cable body 100, such designs belong to the protection scope of the present invention.

[0047] On the other hand, Figures 1 to 6 As shown, a construction method of an anti-scouring submarine cable structure is also provided, comprising the following steps:

[0048] The submarine cable body 100 is fixedly connected to the connection seat 210, and bionic grass 300 is laid on the protective sleeves 220 on both sides of the connection seat 210, and a water-absorbing expansion component 400 is installed at one end of the protective sleeve 220 away from the connection seat 210;

[0049] The protective sleeves 220 on both sides of the submarine cable body 100 are wrapped around the submarine cable body 100 from both sides of the submarine cable body 100, and the water-swellable components 400 at both ends are bonded and fixed by using a water-soluble hydrolyzed glue 500 to form an anti-scouring submarine cable wrapping structure;

[0050] The anti-scouring submarine cable wrapping structure is laid at a preset position on the seabed by using a power device (not shown). The hydrolyzed gel 500 dissolves under the action of seawater, and the protective sleeves 220 on both sides of the submarine cable body 100 are opened toward both sides of the submarine cable body 100 and laid flat on the seabed, exposing the bionic grass 300 to form an anti-scouring submarine cable deployment structure. The water-absorbing and swelling components 400 at both ends absorb water and swell to press and fix the protective sleeves 220 and the submarine cable body 100 on the seabed.

[0051] This method is simple and convenient to operate, and can easily realize the laying of submarine cables while solving the problem of anti-scouring of submarine cables. It only needs to lay the overall anti-scouring submarine cable wrapping structure to the preset position, and the anti-scouring submarine cable wrapping structure will naturally unfold to form an anti-scouring submarine cable unfolding structure, which can effectively achieve the anti-scouring effect and does not require manual diving for laying, thereby reducing construction costs and increasing operation safety.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An anti-scouring submarine cable structure, characterized in that: The invention comprises a submarine cable body (100) and a protective component (200), wherein the protective component (200) comprises a connecting seat (210), wherein the connecting seat (210) is fixedly connected to the submarine cable body (100), protective sleeves (220) are arranged on both sides of the connecting seat (210), and bionic grass (300) is laid on the protective sleeves (220), and a water-absorbing expansion component (400) is arranged at one end of the protective sleeve (220) away from the connecting seat (210), and the protective sleeves (220) on both sides respectively wrap the submarine cable body (100) from both sides of the submarine cable body (100), and the two water-absorbing expansion components (400) are bonded and fixed by a hydrolyzed glue (500) that can be dissolved in water.

2. The anti-scouring submarine cable structure according to claim 1, characterized in that: The submarine cable body (100) comprises a core (110), the exterior of the core (110) being wrapped in sequence with an insulating layer (120), a shielding layer (130) and a protective layer (140), and the protective layer (140) and the connecting seat (210) being fixedly connected.

3. The anti-scouring submarine cable structure according to claim 2, characterized in that: The protective layer (140) is provided with a card slot (141), and the connecting seat (210) is provided with a card protrusion (211) that is card-engaged with the card slot (141).

4. The anti-scouring submarine cable structure according to any one of claims 1 to 3, characterized in that: The length directions of the connecting seat (210), the protective sleeve (220) and the water-swellable component (400) extend along the axial direction of the submarine cable body (100).

5. The anti-scouring submarine cable structure according to any one of claims 1 to 3, characterized in that: The protective sleeves (220) and the water-swellable components (400) on both sides are symmetrically arranged about the radial center axis of the submarine cable body (100).

6. The anti-scouring submarine cable structure according to any one of claims 1 to 3, characterized in that: The bionic grass (300) is distributed in a matrix on the protective cover (220), the length direction of the matrix is ​​parallel to the axial direction of the submarine cable body (100), and the width direction of the matrix is ​​parallel to the radial direction of the submarine cable body (100).

7. The anti-scouring submarine cable structure according to any one of claims 1 to 3, characterized in that: The water-swellable component (400) comprises an elastic hydrophilic non-woven fabric outer shell (410), a receiving cavity (420) is provided in the hydrophilic non-woven fabric outer shell (410), and the receiving cavity (420) is filled with a water-swellable agent (430).

8. The anti-scouring submarine cable structure according to any one of claims 1 to 3, characterized in that: A locking member (600) is provided on the connection seat (210), and the locking member (600) includes a locking belt, and the locking belt includes a first locking belt (610) and a second locking belt (620) respectively fixed at two ends of the connection seat (210), and the first locking belt (610) and the second locking belt (620) are respectively arranged on both sides of the submarine cable body (100) along the radial direction, and the first locking belt (610) and the second locking belt (620) respectively surround and wrap the submarine cable body (100) from both sides of the submarine cable body (100), and a locking buckle (611) is provided at one end of the first locking belt (610) away from the connection seat (210), and a locking portion (621) is provided at one end of the second locking belt (620) away from the connection seat (210), and the locking portion (621) is locked and connected with the locking buckle (611).

9. The anti-scouring submarine cable structure according to any one of claims 1 to 3, characterized in that: An elastic member (700) is provided on the side of the protective sleeve (220) facing the submarine cable body (100); when the protective sleeve (220) is wrapped around the outside of the submarine cable body (100), the elastic member (700) is in a compressed state.

10. A construction method for an anti-scouring submarine cable structure, characterized in that: Providing the anti-scour submarine cable structure according to any one of claims 1 to 9, comprising the following steps: The submarine cable body (100) is fixedly connected to the connection seat (210), and the bionic grass (300) is laid on the protective sleeves (220) on both sides of the connection seat (210), and the water-swellable component (400) is installed on the end of the protective sleeve (220) away from the connection seat (210); The protective sleeves (220) on both sides of the submarine cable body (100) are wrapped around the submarine cable body (100) from both sides of the submarine cable body (100), and the water-swellable components (400) at both ends are bonded and fixed using a water-soluble hydrolyzed glue (500) to form an anti-scouring submarine cable wrapping structure; The anti-scouring submarine cable wrapping structure is laid at a preset position on the seabed by using a power device, the hydrolyzed gel (500) is dissolved under the action of seawater, the protective sleeves (220) on both sides of the submarine cable body (100) are opened toward both sides of the submarine cable body (100) and laid flat on the seabed, exposing the bionic grass (300), forming an anti-scouring submarine cable unfolding structure, and the water-absorbing and swelling components (400) at both ends absorb water and swell, so as to press and fix the protective sleeves (220) and the submarine cable body (100) on the seabed.

Images