Large offshore take-off and landing airport

Abstract

This invention discloses a large-scale, elliptical airport for nearshore use, relating to the fields of offshore airport, port engineering, and marine engineering technology. It includes a superstructure and a jacket foundation; the superstructure is located on top of the jacket foundation. The large-scale, elliptical airport of this invention adjusts the height of the airport's working surface by raising and lowering the jacket foundation, optimizing the overall structural stress and eliminating wave-crossing issues. It provides sufficient clearance for foundation settlement and sea-level rise, facilitating use and installation. The airport can be modularly assembled and dismantled, broken down into smaller parts, and reused in different locations. It can be transported by tugboat at sea. Modular assembly of the large-scale offshore airport can be achieved without relying on tidal range floating technology, significantly improving offshore construction efficiency. Dismantling does not affect the subsequent use of the sea area. The jacket foundation can be lowered to a certain depth below sea level without affecting surface navigation. The construction and installation process of the airport is efficient, green, environmentally friendly, and conducive to environmental protection.

Description

Technical Field

[0001] This invention relates to the fields of offshore airport, port engineering and marine engineering technology, and in particular to large-scale offshore shovel-and-flight airports. Background Technology

[0002] Offshore airports require no land and have minimal impact on the surrounding environment, but sea breezes reduce the safety of aircraft takeoffs and landings; corrosion at sea increases maintenance costs for machinery, aircraft, and various facilities. With the decreasing availability of land near cities and advancements in science and technology, relocating airports from major coastal cities to the sea is a future development trend.

[0003] Currently, most offshore airports are constructed using land reclamation, which involves partially or completely reclaiming land from the sea. Land reclamation for artificial islands is extremely expensive. First, steel piles and protective panels are used to enclose the area in the sea, then soil is filled in and compacted to form land. During construction, measures must be taken to prevent soil erosion, and land subsidence must be considered. Summary of the Invention

[0004] To address the above technical problems, this invention provides a large-scale, shovel-and-fly airport with a wide range of applications. The construction and installation process of the airport is efficient, green, environmentally friendly, and conducive to environmental protection.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] The present invention provides a large offshore shovelable airport, comprising an upper module and a jacket support; the upper module is disposed on top of the jacket support; and a deck surface is provided on the top of the upper module.

[0007] Optionally, the upper module includes a floating pod, the bottom of which is connected to the top of the jacket support, and the top of which is provided with the deck surface.

[0008] Optionally, the floating pod is provided with multiple bulkheads, which divide the floating pod into multiple upper spaces and multiple lower spaces.

[0009] Optionally, the lower sides of the floating hull are provided with variable cross-section sections.

[0010] Optionally, a left jacket support and a right jacket support are provided below the upper block; the space between the left jacket support and the right jacket support is used for the ship entry passage.

[0011] Optionally, the guide frame support includes telescopic columns, fixed columns, side columns, upper horizontal longitudinal bars, lower horizontal longitudinal bars, upper horizontal crossbars, lower horizontal crossbars, upper horizontal diagonal braces, longitudinal diagonal braces, and transverse diagonal braces; the plurality of fixed columns are arranged in a straight line, and the side columns are provided on the side of the fixed columns away from the central axis of the upper block; the upper horizontal crossbars are provided between adjacent fixed columns and between the upper parts of adjacent side columns, and the lower horizontal crossbars are provided between adjacent fixed columns and between the lower parts of adjacent side columns. A horizontal longitudinal bar is provided between the upper part of the adjacent fixed column and the upper part of the side column; a horizontal longitudinal bar is provided between the lower part of the adjacent fixed column and the lower part of the side column; a horizontal diagonal brace is provided between the upper part of the fixed column and the diagonally arranged side column; a longitudinal diagonal brace is provided between the adjacent fixed column and the side column; a transverse diagonal brace is provided between the adjacent fixed columns and between the adjacent side columns; a telescopic column is provided at the top of the fixed column, and an upper block is provided at the top of the telescopic column.

[0012] Optionally, the top of the telescopic column is provided with an interface, and a bracket support is provided between the interface and the upper block.

[0013] The present invention achieves the following technical effects compared to the prior art:

[0014] The large-scale, elliptical airport in the nearshore area described in this invention adjusts the height of the airport's working surface by raising and lowering the jacket support platform. This optimizes the overall structural stress, eliminating wave-crossing issues at the working surface, and provides sufficient clearance for foundation settlement and sea-level rise, facilitating use and installation. The airport can be modularly assembled and disassembled, broken down into smaller parts, and reused in different locations. After disassembly, the upper components of the airport can be transported by tugboat at sea. The modular assembly of the large-scale offshore airport can be achieved without relying on tidal range, significantly improving offshore construction efficiency. The airport's dismantling after reaching its design service life does not affect the subsequent use of the sea area. The jacket support platform can be lowered to a certain depth below the sea surface without affecting navigation. The construction and installation process of the airport is efficient, green, environmentally friendly, and conducive to environmental protection. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a side view of the near-shore large-scale shovel airport module of the present invention.

[0017] Figure 2 This is a top view of the near-shore large-scale shovelable airport module of the present invention.

[0018] Figure 3 This is the front elevation view of the near-shore large-scale shovel airport module of the present invention.

[0019] Figure 4 This is a side elevation view of the near-shore large-scale shovelable airport module of the present invention.

[0020] Figure 5 This is a diagram of the lower support structure of the near-shore large-scale shovelable airport module of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1. Upper module; 2. Left jacket support; 3. Right jacket support; 4. Deck surface; 5. Upper space; 6. Lower space; 7. Bulkhead; 8. Floating tank; 9. Variable cross-section section; 10. Bracket support; 11. Interface; 12. First telescopic column; 13. Second telescopic column; 14. First fixed column; 15. Second fixed column; 16. Third fixed column; 17. First side column; 18. Second side column; 19. Third side column; 20. Upper horizontal longitudinal bar; 21. Lower horizontal longitudinal bar; 22. Upper horizontal transverse bar; 23. Lower horizontal transverse bar; 24. Upper horizontal diagonal brace; 25. Longitudinal diagonal brace; 26. Transverse diagonal brace; 27. End of fixed column; 28. End of side column. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1 to 5 As shown, this embodiment provides a large offshore shovel airport, including an upper block 1 and a jacket support; the upper block 1 is disposed on the top of the jacket support; the top of the upper block 1 is provided with a deck surface 4.

[0024] The large offshore jack-up airport in this embodiment is suitable for water depths of 20 to 100 meters.

[0025] The jacket support platform is a separate structure. By raising and lowering the jacket support platform, the height of the airport working surface can be adjusted. This can optimize the overall stress of the structure, prevent the airport working surface from being affected by waves, and provide sufficient margin for foundation settlement and sea level rise, making it easy to use and install.

[0026] Airports can be modularly assembled and disassembled, broken down into smaller parts, and reused in different locations.

[0027] The demolition of the airport after it reaches its designed service life will not affect the subsequent use of the sea area.

[0028] The jacket platform can be lowered to a certain depth below the sea surface without affecting the navigation of ships at sea.

[0029] In this specific embodiment, the upper block 1 is a bidirectional long cantilever bridge box girder structure supported by brackets 10. The brackets 10 enable a quick and effective connection between the upper block 1 and the jacket foundation, and also greatly enhance the ability of the bidirectional long cantilever bridge box girder structure to provide an effective airport working surface. Under the condition of meeting structural strength and stability requirements, the length of the cantilever on all four sides can be half the mid-span length. Specifically, the upper block 1 includes a floating pod 8, the bottom of which is connected to the top of the jacket foundation, and a deck surface 4 is provided on the top of the floating pod 8. Multiple bulkheads 7 are provided inside the floating pod 8, dividing the interior of the floating pod 8 into multiple upper spaces 5 and multiple lower spaces 6.

[0030] Deck surface 4 can form an airport runway, enabling aircraft takeoff and landing. Terminals and other airport facilities can be located on deck surface 4, or integrated with upper space 5 and lower space 6. The ends of upper space 5 and lower space 6 are connected by variable cross-section sections 9.

[0031] The upper space 5 and the lower space 6 are formed by a bulkhead 7 to create multiple sealed floating pods 8. The floating pods 8 can provide sufficient buoyancy to ensure the stability of the upper module 1 when it is towed by a tugboat after it is removed.

[0032] Below the upper module 1 are the left jacket support 2 and the right jacket support 3; the space between the left jacket support 2 and the right jacket support 3 serves as a ship access passage. The ship access passage is more than 30 meters wide, allowing the vessel installing the upper module 1 to enter and exit through the passage. The left jacket support 2 and the right jacket support 3 have the same structural form and are symmetrically arranged on both sides of the upper module 1.

[0033] The multiple columns of the left and right jacket foundations 2 and 3 are equipped with a hydraulic multi-point synchronous lifting servo system to achieve the lifting and lowering function of the jacket foundations. An external power supply is required for operation. The jacket foundations consist of multiple sections, the specific height of which is determined by sea state parameters such as the water depth of the target sea area and the maximum wave height under extreme sea conditions. The second and third sections are retractable. The design capability of the hydraulic multi-point synchronous lifting servo system for the jacket foundations is determined by factors such as the self-weight of the upper module 1 it supports, external environmental loads, and impact loads during aircraft takeoff and landing.

[0034] When the upper block 1 is installed by floating, the second section of the jacket foundation can be raised to the height required for floating installation above the sea surface. After the upper block 1 is installed on the second section of the jacket foundation by floating, the third section of the jacket foundation is raised, and then the upper block 1 of the two-way cantilever bridge box girder arch structure is raised to the working height of the airport surface.

[0035] When the upper module 1 is installed by floating, it can be installed by means of tidal difference, or it can be installed by means of the lifting function of the guide frame support without the aid of tidal difference. The installation method is highly adaptable.

[0036] In this specific embodiment, the guide frame support includes a first telescopic column 12, a second telescopic column 13, a first fixed column 14, a second fixed column 15, a third fixed column 16, a first side column 17, a second side column 18, a third side column 19, an upper horizontal longitudinal bar 20, a lower horizontal longitudinal bar 21, an upper horizontal transverse bar 22, a lower horizontal transverse bar 23, an upper horizontal diagonal brace 24, a longitudinal diagonal brace 25, and a transverse diagonal brace 26; the first fixed column 14, the second fixed column 15, and the third fixed column 16 are arranged in a straight line, and the first fixed column 14 is provided with the first side column 17 on the side away from the central axis of the upper block 1, and the second fixed column 15 is away from the central axis of the upper block 1. A second side post 18 is provided on one side of the line, and a third side post 19 is provided on the side of the third fixed post 16 away from the central axis of the upper block 1; the bottoms of the first fixed post 14 and the first side post 17, the second fixed post 15 and the second side post 18, and the third fixed post 16 and the third side post 19 are connected by a lower horizontal longitudinal bar 21, and the bottoms of the first fixed post 14 and the first side post 17, the second fixed post 15 and the second side post 18, and the third fixed post 16 and the third side post 19 are connected by an upper horizontal longitudinal bar 20; the first fixed post 14 and the second fixed post 15, the second fixed post 15 and the third fixed post 16, the first side post 17 and the third side post 19 are connected by an upper horizontal longitudinal bar 20; The lower parts of the two side posts 18 and the second side post 18 and the third side post 19 are connected by a lower horizontal crossbar 23. The upper parts of the first fixed post 14 and the second fixed post 15, the second fixed post 15 and the third fixed post 16, the first side post 17 and the second side post 18, and the second side post 18 and the third side post 19 are connected by an upper horizontal crossbar 22. The first fixed post 14 and the second fixed post 15, the second fixed post 15 and the third fixed post 16, the first side post 17 and the second side post 18, and the second side post 18 and the third side post 19 are connected by transverse diagonal braces 26. The first fixed post 14 and the first side post 17, the second fixed post 18, the second side post 19, and the third side post 19 are connected by transverse diagonal braces 26. A longitudinal diagonal brace 25 is provided between the first fixed column 14 and the second side column 18, and between the third fixed column 16 and the third side column 19; the upper part of the first fixed column 14 is connected to the upper part of the second side column 18, the upper part of the second fixed column 15 is connected to the upper part of the first side column 17, the upper part of the second fixed column 15 is connected to the upper part of the third side column 19, and the upper part of the third fixed column 16 is connected to the upper part of the second side column 18 by an upper horizontal diagonal brace 24; a second telescopic column 13 is provided at the top of the first fixed column 14, the second fixed column 15, and the third fixed column 16, and a first telescopic column 12 is provided on the second telescopic column 13; the upper assembly 1 is provided on the top of the first telescopic column 12. An interface 11 is provided at the top of the first telescopic column 12, and a bracket support 10 is provided between the interface 11 and the upper assembly 1.

[0037] The left jacket foundation 2 and the right jacket foundation 3 are fixedly connected to the pre-installed pile foundations on the seabed via fixed column ends 27 and side column ends 28, providing sufficient end-support force for the upper module 1. This pile-insertion method is also crucial for enabling the quick dismantling or relocation and reuse of the left jacket foundation 2 and the right jacket foundation 3. The left jacket foundation 2 and the right jacket foundation 3 can be installed and dismantled using a crane vessel.

[0038] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A large offshore take-off and landing airfield, characterized in that: The system includes a superstructure and a jacket support. The superstructure is located on top of the jacket support. A deck surface is provided on top of the superstructure. A left jacket support and a right jacket support are located below the superstructure. The space between the left and right jacket supports is used as a passageway for the ship. The jacket support includes telescopic columns and fixed columns. Multiple fixed columns are arranged in a straight line. The telescopic columns are located on top of the fixed columns. The superstructure is located on top of the telescopic columns. The jacket support can be lowered to a certain depth below the sea surface. The superstructure includes a buoy. The bottom of the buoy is connected to the top of the jacket support. The deck surface is provided on top of the buoy. The superstructure can be towed by a tugboat.

2. The near-shore large-scale shovelable airfield according to claim 1, characterized in that, The floating pod is equipped with multiple bulkheads, which divide the floating pod into multiple upper spaces and multiple lower spaces.

3. The near-shore large-scale shovelable airfield according to claim 1, characterized in that, The lower sides of the floating hull are provided with variable cross-section sections.

4. The near-shore large-scale shovel-and-fly airport according to claim 1, characterized in that, The guide frame support also includes side columns, upper horizontal longitudinal bars, lower horizontal longitudinal bars, upper horizontal cross bars, lower horizontal cross bars, upper horizontal diagonal braces, longitudinal diagonal braces, and transverse diagonal braces; the side columns are provided on the side of the fixed column away from the central axis of the upper block; the upper horizontal cross bars are provided between adjacent fixed columns and between the upper parts of adjacent side columns, and the lower horizontal cross bars are provided between adjacent fixed columns and between the lower parts of adjacent side columns; the upper horizontal longitudinal bars are provided between the upper parts of adjacent fixed columns and side columns, and the lower horizontal longitudinal bars are provided between the lower parts of adjacent fixed columns and side columns; the upper horizontal diagonal braces are provided between the upper parts of the fixed columns and the diagonally positioned side columns; the longitudinal diagonal braces are provided between adjacent fixed columns and side columns; and the transverse diagonal braces are provided between adjacent fixed columns and between adjacent side columns.

5. The large-scale offshore shovelable airfield according to claim 1, characterized in that, The top of the telescopic column is provided with an interface, and a bracket support is provided between the interface and the upper block.

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