Modularized construction process for tension leg type wind power platform foundation

Abstract

The invention relates to the technical field of modular construction processes, in particular to a modular construction process of a tension leg type wind power platform foundation, and a plate shell section assembly comprises a top transition plate shell section, a bottom center buoy plate shell section and a side buoy plate shell section; the adjacent side buoy plate shell sections are respectively connected by three transverse triangular connecting pipe sections, so that the stability of the top transition plate shell section is improved; the three side buoy plate shell sections are the same in structure, and the same design drawing can be adopted; the three middle radial connecting pipe sections are the same in structure, and the same design drawing can be adopted; the three transverse triangular connecting pipe sections are the same in structure, and the same design drawing can be adopted; the three three-dimensional inclined connecting pipe sections are the same in structure, and the same set of design drawing can be adopted; due to the fact that the same component adopts the same drawing, the purpose of improving the design efficiency can be achieved, the same component can be produced and applied on a large scale, the production efficiency is improved, and the overall construction cost of the tension leg wind power platform foundation is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of modular construction technology, and in particular to a modular construction technology for a tension leg type wind power platform foundation. Background Art

[0002] A tension leg type wind power platform is a floating offshore wind power structure used in deep sea environments. The platform is anchored to the seabed through pre-tensioned vertical mooring cables (tension legs), combining the flexibility of a floating platform and the stability of a fixed foundation. It is one of the important solutions for future deep and far sea wind power development, achieving stability by combining buoyancy and tension. The tension leg type wind power platform consists of a platform body, a tension leg system, an anchoring foundation, etc. The platform body is usually a semi-submersible or columnar floating body, providing sufficient buoyancy to support the weight of the wind turbine; the tension leg system is composed of high-strength steel cables or synthetic fiber cables, vertically connecting the platform and the seabed anchoring point, and restricting the heave, pitch, and roll of the platform through pre-tensioning; the anchoring foundation adopts suction anchors, pile foundations or gravity bases to adapt to different seabed geologies. The pre-tension of the tension legs keeps the platform almost rigidly fixed in the wind and waves, greatly reducing the heave motion to achieve the stability mechanism of the tension leg type wind power platform; small displacements are allowed in the horizontal direction (surge, sway), and wave energy is absorbed through the elasticity of the mooring cables to reduce structural fatigue. The tension leg type wind power platform is usually used in sea areas with a depth of 50 - 1000 meters, filling the gap between fixed foundations and traditional floating platforms; the platform has high stability, the operation of the wind turbine is close to the performance of a fixed foundation, the heave motion is extremely small, the operation efficiency of the wind turbine is close to that of a fixed foundation, and the power generation efficiency is better than that of a semi-submersible or Spar platform; compared with the Spar platform that requires a large amount of ballast, the TLP structure is lighter and the material cost is lower without a large amount of ballast (such as the Spar platform); it can support super-large wind turbines of 15MW+ and adapt to the development of future wind power technology.

[0003] The tension leg type wind power platform utilizes the platform to generate buoyancy far greater than its own weight. The remaining buoyancy balances with the pre-tension, and the pre-tension acts on the vertical tension leg system to make the tension legs taut, making the out-of-plane motion of the platform approximately rigid; at the same time, it uses an upright floating drum structure to achieve in-plane compliant motion of the platform through the in-plane flexibility of the tension legs, enabling the platform to reasonably balance the forces under the action of wave forces. Generally, it consists of upper wind power equipment, a floating platform body, a tension leg system, a seabed foundation, etc. The floating platform body mostly adopts an upright floating drum structure, the tension legs are usually high-strength steel cables or steel pipes, etc., and the seabed foundation is used to anchor the tension legs. Compared with other floating wind turbine technologies, it has the advantage of saving sea area use, the motion response characteristics are close to those of fixed wind turbines, it can improve the operating environment, enhance the reliability of the wind turbine, increase the power generation, and the floating body structure is simple, the steel consumption per unit kilowatt has an advantage, it is convenient for large-scale batch production, and it is suitable for deeper sea areas.

[0004] The clean energy power supply transformation demonstration project of CNOOC's Lufeng oilfield group is the first deep - sea wind power demonstration project applying TLP technology in China. It will carry 16MW floating wind turbines, adopt a vertical tension leg mooring system, and be equipped with dynamic and static submarine cables and energy storage devices to connect to the Lufeng oilfield group. The concrete tension leg floating wind power foundation jointly designed by ECO TLP and MOCEAN - Offshore BV has obtained the principle approval from the American Bureau of Shipping (ABS), which is applicable to waters of 200 - 3000 meters. It can realize the modular construction, installation and deployment of the floating body foundation of super - large floating wind turbines, and provide the solution with the lowest installation and operation and maintenance costs globally.

[0005] A Chinese patent with the application number CN202311613285.1, titled "Installation Method of a Tension Leg Floating Wind Power Platform", by setting structures such as a tension leg platform, a platform extension arm, a tower column, a tension cable system, tension rigging, and a gravity - type reinforced concrete anchoring foundation, uses the gravity - type reinforced concrete anchoring foundation as a temporary floating cylinder or floating box. During installation, no large installation equipment or pile driving vessel is required. When in - situ production, the new gravity - type reinforced concrete anchoring foundation replaces the traditional suction pile or cast - in - place pile, saving construction and offshore installation costs and achieving the purpose of cost reduction and efficiency improvement. However, this tension leg floating wind power platform does not adopt a modular division method. The same design drawings cannot be used between each tension leg, and each tension leg structure can only be installed at a specific position, cannot be replaced and used, and cannot achieve large - scale production and installation, which is not conducive to improving the construction efficiency. Summary of the Invention

[0006] The main purpose of the present invention is to provide a modular construction process for the foundation of a tension leg type wind power platform, so as to solve the problems in the related technology that the tension leg floating wind power platform does not adopt a modular division method, the same design drawings cannot be used between each tension leg, and each tension leg structure can only be installed at a specific position.

[0007] To achieve the above purpose, according to one aspect of the present invention, a modular construction process for the foundation of a tension leg type wind power platform is provided, including the following steps:

[0008] S1: Divide the foundation of the tension leg type wind power platform into several plate - shell segments and several pipe segments;

[0009] S2: Prefabricate the plate - shell segment components;

[0010] S2.1: Prefabricate the top transition plate - shell segment;

[0011] S2.2: Prefabricate the side floating cylinder plate - shell segment;

[0012] S2.3: Prefabricate the bottom center floating cylinder plate - shell segment;

[0013] S3: Prefabricate the center truss pipe segments;

[0014] S4: Prefabricated pipe segment assembly;

[0015] S4.1: Prefabricated three-dimensional inclined connecting pipe segment;

[0016] S4.2: Prefabricated intermediate radial connecting pipe segment;

[0017] S4.3: Prefabricated transverse triangular connecting pipe segment;

[0018] S5: Clean the closure area, mark the ground line, and place the support piers;

[0019] S6: Using the bottom center pontoon plate shell segment as the reference segment, close the bottom center pontoon plate shell segment;

[0020] S7: Close the center truss pipe segment;

[0021] S8: Close the side pontoon plate shell segments respectively;

[0022] S9: Close the intermediate radial connecting pipe segments respectively;

[0023] S10: Close the transverse triangular connecting pipe segments respectively;

[0024] S11: Close the top transition plate shell segment;

[0025] S12: Close the three-dimensional inclined connecting pipe segments respectively.

[0026] Further, the plate shell segment assembly includes a top transition plate shell segment, a bottom center pontoon plate shell segment, and side pontoon plate shell segments.

[0027] Further, the top transition plate shell segment is located above the bottom center pontoon plate shell segment, and the side pontoon plate shell segments are located at three positions around the bottom center pontoon plate shell segment.

[0028] Further, the bottom end of the center truss pipe segment is fixedly arranged at the top of the bottom center pontoon plate shell segment, and the top end is fixedly arranged at the bottom of the top transition plate shell segment.

[0029] Further, the pipe segment assembly includes three-dimensional inclined connecting pipe segments, intermediate radial connecting pipe segments, and transverse triangular connecting pipe segments.

[0030] Further, one end of the three-dimensional inclined connecting pipe segment is fixedly connected to the top of the side pontoon plate shell segment, and the other end is fixedly connected to the side wall of the top transition plate shell segment; one end of the three-dimensional inclined connecting pipe segment is fixedly connected to the top of the side pontoon plate shell segment, and the other end is fixedly connected to the side wall of the top transition plate shell segment; one end of the three-dimensional inclined connecting pipe segment is fixedly connected to the top of the side pontoon plate shell segment, and the other end is fixedly connected to the side wall of the top transition plate shell segment.

[0031] Furthermore, one end of the intermediate radial connecting pipe section is fixedly connected to the side wall of the side floating barrel plate shell section, and the other end is fixedly connected to the side wall of the bottom center floating barrel plate shell section; one end of the intermediate radial connecting pipe section is fixedly connected to the side wall of the side floating barrel plate shell section, and the other end is fixedly connected to the side wall of the bottom center floating barrel plate shell section; one end of the intermediate radial connecting pipe section is fixedly connected to the side wall of the side floating barrel plate shell section, and the other end is fixedly connected to the side wall of the bottom center floating barrel plate shell section.

[0032] Furthermore, one end of the transverse triangular connecting pipe section is fixedly connected to the side wall of the side floating barrel plate shell section, and the other end is fixedly connected to the side wall of the side floating barrel plate shell section; one end of the transverse triangular connecting pipe section is fixedly connected to the side wall of the side floating barrel plate shell section, and the other end is fixedly connected to the side wall of the side floating barrel plate shell section; one end of the transverse triangular connecting pipe section is fixedly connected to the side wall of the side floating barrel plate shell section, and the other end is fixedly connected to the side wall of the side floating barrel plate shell section.

[0033] Furthermore, there are several support piers.

[0034] Furthermore, several support piers are fixedly provided at the bottom of both the bottom center floating barrel plate shell section and the side floating barrel plate shell section.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] The present invention improves the overall stability of the platform foundation by setting the side floating barrel plate shell section, the three-dimensional inclined connecting pipe section, the intermediate radial connecting pipe section, and the transverse triangular connecting pipe section; three three-dimensional inclined connecting pipe sections and three intermediate radial connecting pipe sections and the central truss pipe section respectively form three vertical triangles, and the three vertical triangles support the top transition plate shell section, the central truss pipe section, and the bottom center floating barrel plate shell section in three different directions, strengthening the lateral force resistance of the platform foundation and providing the overall stability of the platform foundation; adjacent side floating barrel plate shell sections are respectively connected by three transverse triangular connecting pipe sections to form a triangle, reducing the sway amplitude of the side floating barrel plate shell section, enhancing the stability of the bottom center floating barrel plate shell section, and thus improving the stability of the top transition plate shell section;

[0037] The three side floating barrel plate shell sections have the same structure and can adopt the same design drawings; the three intermediate radial connecting pipe sections have the same structure and can adopt the same design drawings; the three transverse triangular connecting pipe sections have the same structure and can adopt the same design drawings; the three three-dimensional inclined connecting pipe sections have the same structure and can adopt the same design drawings; since the same components adopt the same drawings, the purpose of improving the design efficiency can be achieved, and the same components can be applied in large-scale production, thereby improving the production efficiency and effectively reducing the overall construction cost of the tension leg wind power platform foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is the overall schematic diagram of the tension leg type wind power platform foundation of the present invention;

[0039] Figure 2 This is the three-dimensional schematic diagram of the prefabrication completion of the top transition plate shell section of the present invention;

[0040] Figure 3 This is the three-dimensional schematic diagram of the prefabrication completion of the side floating barrel plate shell section of the present invention;

[0041] Figure 4 This is the three-dimensional schematic diagram of the prefabrication completion of the bottom center floating barrel plate shell section of the present invention;

[0042] Figure 5 This is the three-dimensional schematic diagram of the prefabrication completion of the central truss pipe section of the present invention;

[0043] Figure 6 This is the three-dimensional schematic diagram of the prefabrication completion of the three-dimensional inclined connecting pipe section of the present invention;

[0044] Figure 7 This is the three-dimensional schematic diagram of the prefabrication completion of the intermediate radial connecting pipe section of the present invention;

[0045] Figure 8 This is the three-dimensional schematic diagram of the prefabrication completion of the transverse triangular connecting pipe section of the present invention;

[0046] Figure 9 This is the schematic diagram of the closure of the bottom center floating barrel plate shell section of the present invention;

[0047] Figure 10 This is the schematic diagram of the closure of the central truss pipe section of the present invention;

[0048] Figure 11 This is the schematic diagram of the closure of the side floating barrel plate shell section of the present invention;

[0049] Figure 12 This is the schematic diagram of the closure of the intermediate radial connecting pipe section of the present invention;

[0050] Figure 13 This is the schematic diagram of the closure of the transverse triangular connecting pipe section of the present invention;

[0051] Figure 14 This is the schematic diagram of the closure of the top transition plate shell section of the present invention;

[0052] Figure 15 This is the schematic diagram of the closure of the three-dimensional inclined connecting pipe section of the present invention.

[0053] Illustration:

[0054] 1. Top transition plate shell section; 2. Central truss pipe section; 3. Bottom center floating barrel plate shell section; 4 / 5 / 6. Side floating barrel plate shell sections; 7 / 8 / 9. Three-dimensional inclined connecting pipe sections; 10 / 11 / 12. Intermediate radial connecting pipe sections; 13 / 14 / 15. Transverse triangular connecting pipe sections; 9-1. Support pier. Detailed implementation manners

[0055] To further illustrate the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects according to the present invention as follows.

[0056] Please refer to Figures 1 to 7 , this embodiment provides a modular construction process for a tension leg type wind power platform foundation, including the following steps: S1: Divide the tension leg type wind power platform foundation into several plate shell segments and several pipe segments. The plate shell segments include a top transition plate shell segment 1, side floating barrel plate shell segments 4, 5, 6, and a bottom center floating barrel plate shell segment 3; the pipe segments include three-dimensional inclined connecting pipe segments 7, 8, 9, intermediate radial connecting pipe segments 10, 11, 12, and transverse triangular connecting pipe segments 13, 14, 15;

[0057] S2: Prefabricate the plate shell segment assembly;

[0058] S2.1: Prefabricate the top transition plate shell segment 1;

[0059] S2.2: Prefabricate the side floating barrel plate shell segments 4, 5, 6;

[0060] S2.3: Prefabricate the bottom center floating barrel plate shell segment 3;

[0061] S3: Prefabricate the central truss pipe segment 2;

[0062] S4: Prefabricate the pipe segment assembly;

[0063] S4.1: Prefabricate the three-dimensional inclined connecting pipe segments 7, 8, 9;

[0064] S4.2: Prefabricate the intermediate radial connecting pipe segments 10, 11, 12;

[0065] S4.3: Prefabricate the transverse triangular connecting pipe segments 13, 14, 15;

[0066] S5: Clean the closing area, mark the ground lines, and place the support piers 9-1;

[0067] S6: Using the bottom center floating barrel plate shell segment 3 as the reference segment, close the bottom center floating barrel plate shell segment 3;

[0068] S7: Close the central truss pipe segment 2;

[0069] S8: Close the side floating barrel plate shell segments 4, 5, 6 respectively;

[0070] S9: Close the intermediate radial connecting pipe segments 10, 11, 12 respectively;

[0071] S10: Close the transverse triangular connecting pipe segments 13, 14, 15 respectively;

[0072] S11: Close the top transition plate shell section 1;

[0073] S12: Close the three-dimensional inclined connecting pipe sections 7, 8, and 9 respectively.

[0074] The prefabrication of the top transition plate shell section 1, the side floating drum plate shell sections 4, 5, 6, the bottom center floating drum plate shell section 3, the three-dimensional inclined connecting pipe sections 7, 8, 9, the intermediate radial connecting pipe sections 10, 11, 12, and the transverse triangular connecting pipe sections 13, 14, 15 can be carried out simultaneously or separately, without a specific order. The order of steps S2 to S4.3 is only for convenient expression and does not enforce a specific prefabrication order for each component.

[0075] The plate shell section assembly includes the top transition plate shell section 1, the bottom center floating drum plate shell section 3, and the side floating drum plate shell sections 4, 5, 6.

[0076] The top transition plate shell section 1 is located above the bottom center floating drum plate shell section 3. The side floating drum plate shell sections 4, 5, 6 are located in three directions around the bottom center floating drum plate shell section 3. The side floating drum plate shell section 4, the side floating drum plate shell section 5, and the side floating drum plate shell section 6 form an equilateral triangle. The center point of the bottom center floating drum plate shell section 3 coincides with the center point of the equilateral triangle formed by the side floating drum plate shell sections 4, 5, 6, improving the overall stability of the structure and increasing its anti-overturning ability.

[0077] The side floating drum plate shell sections 4, 5, 6 adopt the concept of standardized division, can use the same set of design drawings, and are produced on a large scale, which speeds up the production speed. The on-site physical objects can be replaced with each other, and there is no need to deliberately distinguish where the side floating drum plate shell sections 4, 5, 6 are fixed during installation, saving installation time and being beneficial to improving the construction efficiency.

[0078] The bottom end of the central truss pipe section 2 is fixedly installed at the top of the bottom center floating drum plate shell section 3, and the top end is fixedly installed at the bottom of the top transition plate shell section 1. The centers of gravity of the top transition plate shell section 1, the central truss pipe section 2, and the bottom center floating drum plate shell section 3 are on the same straight line, increasing their overall stability. The central truss pipe section 2 connects the top transition plate shell section 1 and the bottom center floating drum plate shell section 3 into a whole, increasing the height of the top transition plate shell section 1 to reach an ideal support height.

[0079] The pipe section assembly includes the three-dimensional inclined connecting pipe sections 7, 8, 9, the intermediate radial connecting pipe sections 10, 11, 12, and the transverse triangular connecting pipe sections 13, 14, 15.

[0080] The three-dimensional inclined connecting pipe sections 7, 8, and 9 adopt the concept of standardized division. The structures of the three three-dimensional inclined connecting pipe sections 7, 8, and 9 are the same, and the same set of design drawings can be used for large-scale production, which speeds up the production speed. The physical objects on-site can be replaced with each other, and there is no need to deliberately distinguish where the three-dimensional inclined connecting pipe sections 7, 8, and 9 are fixed during installation, saving installation time and being beneficial to improving the construction efficiency.

[0081] The intermediate radial connecting pipe sections 10, 11, and 12 adopt the concept of standardized division, and the same set of design drawings can be used for large-scale production, which speeds up the production speed. The physical objects on-site can be replaced with each other, and there is no need to deliberately distinguish where the intermediate radial connecting pipe sections 10, 11, and 12 are fixed during installation, saving installation time and being beneficial to improving the construction efficiency.

[0082] The transverse triangular connecting pipe sections 13, 14, and 15 adopt the concept of standardized division, and the same set of design drawings can be used for large-scale production, which speeds up the production speed. The physical objects on-site can be replaced with each other, and there is no need to deliberately distinguish where the transverse triangular connecting pipe sections 13, 14, and 15 are fixed during installation, saving installation time and being beneficial to improving the construction efficiency.

[0083] One end of the three-dimensional inclined connecting pipe section 7 is fixedly connected to the top of the side floating barrel plate shell section 4, and the other end is fixedly connected to the side wall of the top transition plate shell section 1; one end of the three-dimensional inclined connecting pipe section 8 is fixedly connected to the top of the side floating barrel plate shell section 5, and the other end is fixedly connected to the side wall of the top transition plate shell section 1; one end of the three-dimensional inclined connecting pipe section 9 is fixedly connected to the top of the side floating barrel plate shell section 6, and the other end is fixedly connected to the side wall of the top transition plate shell section 1.

[0084] The intermediate radial connecting pipe section 10 fixes the side floating barrel plate shell section 4 in the front left of the bottom center floating barrel plate shell section 3, the intermediate radial connecting pipe section 11 fixes the side floating barrel plate shell section 5 directly behind the bottom center floating barrel plate shell section 3, and the intermediate radial connecting pipe section 12 fixes the side floating barrel plate shell section 6 in the front right of the bottom center floating barrel plate shell section 3, so that the side floating barrel plate shell sections 4, 5, and 6 support the bottom center floating barrel plate shell section 3 from different directions respectively, strengthening the stability of the bottom center floating barrel plate shell section 3.

[0085] The horizontal triangular connecting pipe section 13 connects the side floating barrel shell section 4 and the side floating barrel shell section 6, the horizontal triangular connecting pipe section 14 connects the side floating barrel shell section 4 and the side floating barrel shell section 5, and the horizontal triangular connecting pipe section 15 connects the side floating barrel shell section 5 and the side floating barrel shell section 6. Connecting the side floating barrel shell section 4, the side floating barrel shell section 5, and the side floating barrel shell section 6 forms an equilateral triangle, improving the overall stability of the side floating barrel shell section 4, the side floating barrel shell section 5, and the side floating barrel shell section 6, enabling them to support the bottom central floating barrel shell section 3 in three directions, reducing the sway amplitude of the bottom central floating barrel shell section 3. At the same time, strengthening the connection strength between the side floating barrel shell section 4 and the side floating barrel shell section 5, the side floating barrel shell section 5 and the side floating barrel shell section 6, and the side floating barrel shell section 6 and the side floating barrel shell section 4, reducing the sway amplitude of the side floating barrel shell section 4, the side floating barrel shell section 5, and the side floating barrel shell section 6, enhancing the stability of the bottom central floating barrel shell section 3, thereby improving the stability of the top transition shell section 1.

[0086] The three-dimensional inclined connecting pipe section 7 connects the top transition shell section 1 and the side floating barrel shell section 4, the three-dimensional inclined connecting pipe section 8 connects the top transition shell section 1 and the side floating barrel shell section 5, and the three-dimensional inclined connecting pipe section 9 connects the top transition shell section 1 and the side floating barrel shell section 6. The three-dimensional inclined connecting pipe section 7, the intermediate radial connecting pipe section 10, and the central truss pipe section 2 form a vertical triangle on the left front side of the central truss pipe section 2. The three-dimensional inclined connecting pipe section 9, the intermediate radial connecting pipe section 12, and the central truss pipe section 2 form a vertical triangle on the right front side of the central truss pipe section 2. The three-dimensional inclined connecting pipe section 8, the intermediate radial connecting pipe section 11, and the central truss pipe section 2 form a vertical triangle on the rear side of the central truss pipe section 2. The three vertical triangles support the top transition shell section 1, the central truss pipe section 2, and the bottom central floating barrel shell section 3 in three different directions, strengthening the lateral force resistance of the platform foundation and providing the overall stability of the platform foundation.

[0087] One end of the intermediate radial connecting pipe section 10 is fixedly connected to the side wall of the side floating barrel shell section 4, and the other end is fixedly connected to the side wall of the bottom central floating barrel shell section 3; one end of the intermediate radial connecting pipe section 11 is fixedly connected to the side wall of the side floating barrel shell section 5, and the other end is fixedly connected to the side wall of the bottom central floating barrel shell section 3; one end of the intermediate radial connecting pipe section 12 is fixedly connected to the side wall of the side floating barrel shell section 6, and the other end is fixedly connected to the side wall of the bottom central floating barrel shell section 3.

[0088] One end of the horizontal triangular connecting pipe section 13 is fixedly connected to the side wall of the side floating barrel shell section 4, and the other end is fixedly connected to the side wall of the side floating barrel shell section 6; one end of the horizontal triangular connecting pipe section 14 is fixedly connected to the side wall of the side floating barrel shell section 4, and the other end is fixedly connected to the side wall of the side floating barrel shell section 5; one end of the horizontal triangular connecting pipe section 15 is fixedly connected to the side wall of the side floating barrel shell section 5, and the other end is fixedly connected to the side wall of the side floating barrel shell section 6.

[0089] There are several supporting piers 9-1.

[0090] A number of supporting piers 9-1 are fixedly provided at the bottom of the bottom center floating pontoon plate shell section 3 and the side floating pontoon plate shell sections 4, 5, and 6.

[0091] It should be noted that this example only takes the division, prefabrication, and closure of a set of tension leg wind power platform foundation structure modules as an example. In actual engineering projects, the present invention is not limited to the construction of a specific number of tension leg wind power platform foundations.

[0092] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to obtain equivalent embodiments with equivalent changes. However, as long as it does not depart from the technical content of the present invention, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A modular construction process for a tension-leg type wind power platform foundation, characterized in that, It includes the following steps: S1: Divide the foundation of the tension leg type wind power platform into several plate shell segments and several pipe segments; S2: Prefabricate the plate shell segment components; S2.1: Prefabricate the top transition plate shell segment (1); S2.2: Prefabricate the side floating barrel plate shell segments (4, 5, 6); S2.3: Prefabricate the bottom center floating barrel plate shell segment (3); S3: Prefabricate the center truss pipe segment (2); S4: Prefabricate the pipe segment components; S4.1: Prefabricate the three-dimensional inclined connecting pipe segments (7, 8, 9); S4.2: Prefabricate the intermediate radial connecting pipe segments (10, 11, 12); S4.3: Prefabricate the transverse triangular connecting pipe segments (13, 14, 15); S5: Clean the closure area, mark the ground lines, and place the support piers (9-1); S6: Take the bottom center floating barrel plate shell segment (3) as the reference segment and close the bottom center floating barrel plate shell segment (3); S7: Close the center truss pipe segment (2); S8: Close the side floating barrel plate shell segments (4, 5, 6) respectively; S9: Close the intermediate radial connecting pipe segments (10, 11, 12) respectively; S10: Close the transverse triangular connecting pipe segments (13, 14, 15) respectively; S11: Close the top transition plate shell segment (1); S12: Close the three-dimensional inclined connecting pipe segments (7, 8, 9) respectively.

2. The modular construction process of the tension-leg type wind power platform foundation according to claim 1, characterized in that, The plate shell segment components include a top transition plate shell segment (1), a bottom center floating barrel plate shell segment (3), and side floating barrel plate shell segments (4, 5, 6).

3. The modular construction process of the tension leg type wind power platform foundation according to claim 2, characterized in that, The top transition plate shell segment (1) is located above the bottom center floating barrel plate shell segment (3), and the side floating barrel plate shell segments (4, 5, 6) are located in three directions around the bottom center floating barrel plate shell segment (3).

4. The modular construction process of the tension leg type wind power platform foundation according to claim 2, characterized in that The bottom end of the center truss pipe segment (2) is fixedly arranged on the top of the bottom center floating barrel plate shell segment (3), and the top end is fixedly arranged on the bottom of the top transition plate shell segment (1).

5. The modular construction process of the tension-leg type wind power platform foundation according to claim 2, characterized in that, The pipe segment components include three-dimensional inclined connecting pipe segments (7, 8, 9), intermediate radial connecting pipe segments (10, 11, 12), and transverse triangular connecting pipe segments (13, 14, 15).

6. The modular construction process of the tension leg type wind power platform foundation according to claim 5, characterized in that, One end of the three-dimensional inclined connecting pipe segment (7) is fixedly connected to the top of the side floating barrel plate shell segment (4), and the other end is fixedly connected to the side wall of the top transition plate shell segment (1); one end of the three-dimensional inclined connecting pipe segment (8) is fixedly connected to the top of the side floating barrel plate shell segment (5), and the other end is fixedly connected to the side wall of the top transition plate shell segment (1); one end of the three-dimensional inclined connecting pipe segment (9) is fixedly connected to the top of the side floating barrel plate shell segment (6), and the other end is fixedly connected to the side wall of the top transition plate shell segment (1).

7. The modular construction process of the tension leg type wind power platform foundation according to claim 5, characterized in that, One end of the intermediate radial connecting pipe segment (10) is fixedly connected to the side wall of the side floating barrel plate shell segment (4), and the other end is fixedly connected to the side wall of the bottom center floating barrel plate shell segment (3); one end of the intermediate radial connecting pipe segment (11) is fixedly connected to the side wall of the side floating barrel plate shell segment (5), and the other end is fixedly connected to the side wall of the bottom center floating barrel plate shell segment (3); one end of the intermediate radial connecting pipe segment (12) is fixedly connected to the side wall of the side floating barrel plate shell segment (6), and the other end is fixedly connected to the side wall of the bottom center floating barrel plate shell segment (3).

8. The modular construction process of the tension leg type wind power platform foundation according to claim 5, characterized in that, One end of the transverse triangular connecting pipe section (13) is fixedly connected to the side wall of the side floating barrel plate shell section (4), and the other end is fixedly connected to the side wall of the side floating barrel plate shell section (6); one end of the transverse triangular connecting pipe section (14) is fixedly connected to the side wall of the side floating barrel plate shell section (4), and the other end is fixedly connected to the side wall of the side floating barrel plate shell section (5); one end of the transverse triangular connecting pipe section (15) is fixedly connected to the side wall of the side floating barrel plate shell section (5), and the other end is fixedly connected to the side wall of the side floating barrel plate shell section (6).

9. The modular construction process of the tension leg type wind power platform foundation according to claim 1, characterized in that, There are several of the support piers (9-1).

10. The modular construction process of the tension leg type wind power platform foundation according to claim 9, characterized in that, Several support piers (9-1) are fixedly provided at the bottoms of the bottom center floating barrel plate shell section (3) and the side floating barrel plate shell sections (4, 5, 6).

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