Immersed tube traffic tunnel with nickel-based composite steel plate structure

Abstract

The invention relates to the field of underwater or underground structure technology and the like, and discloses an immersed tube traffic tunnel with a nickel-based composite steel plate structure, which is designed based on a flexible structure, adopts an all-metal immersed tube structure, has low requirements on a foundation, has the characteristics of simple installation method, short construction period and the like, and comprises at least one immersed tube (1) with a nickel-based composite steel plate structure, an interlayer box girder structure is arranged at the bottom of the nickel-based composite steel plate structure immersed tube (1), and a road surface (12) is arranged above the interlayer box girder structure; a positive pressure escape compartment and channel (2), a comprehensive pipe gallery (3) and a bottom anti-floating counterweight ballast (4) are arranged in the interlayer box girder structure.

Description

Technical Field

[0001] The invention relates to the field of underwater or underground structure technology, and in particular to a nickel-based composite steel plate structure immersed tube traffic tunnel. Background Art

[0002] With the rapid development of modern science and technology, the construction technology of submarine tunnels is becoming more and more mature, and more and more submarine tunnels are about to be built to meet people's travel needs. At present, most of the immersed tubes used to build tunnels are pure reinforced concrete structures. The disadvantages of this type of immersed tube are that the outer wall is inevitably damaged by bumps, which reduces the overall strength, and the inner wall will partially fall off, which is easy to cause safety accidents. In addition, the production process requires assembly and disassembly of the template, which is complicated to operate and has low production efficiency. Therefore, it is necessary to improve it. Summary of the invention

[0003] The purpose of the present invention is to design a nickel-based composite steel plate structure immersed tube traffic tunnel, which is based on a flexible structural design and adopts a full metal immersed tube structure, has low requirements on the foundation, and has the characteristics of simple installation method and short construction period.

[0004] The present invention is achieved through the following technical scheme: a nickel-based composite steel plate structure immersed tube traffic tunnel, comprising at least one section of nickel-based composite steel plate structure immersed tube, a sandwich box beam structure is arranged at the bottom of the nickel-based composite steel plate structure immersed tube, and a road surface is arranged above the sandwich box beam structure; a positive pressure escape capsule and passage, an integrated pipe gallery and a bottom anti-floating counterweight ballast cabin are arranged in the sandwich box beam structure.

[0005] In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: the nickel-based composite steel plate structure immersed tube includes a marine steel base layer and a nickel-based steel surface layer from the inside to the outside, and the marine steel base layer of the nickel-based composite steel plate structure immersed tube is provided with T-shaped or H-shaped reinforcing inner ribs along the welding seams.

[0006] In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: the thickness of the marine steel base layer of the nickel-based composite steel plate structure immersed tube is set according to the water pressure resistance; the type and thickness of the nickel-based steel surface layer are set according to the corrosion resistance life of ≥150 years.

[0007] In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: when there are two or more sections of nickel-based composite steel plate structure immersed tubes, the front and rear sections of the nickel-based composite steel plate structure immersed tubes adopt a "flange head + sealing gasket" connection structure.

[0008] In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: fire-fighting automatic rolling shutter cabins are also arranged between the sections of the composite steel plate structure immersed tubes.

[0009] In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: the length and height ratio of the nickel-based composite steel plate structure immersed tube is ≥1:20.

[0010] In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: in each nickel-based composite steel plate structure immersed tube traffic tunnel formed by connecting the nickel-based composite steel plate structure immersed tubes: the positive pressure escape capsule and the passage are located on the right side of the driving direction, the bottom anti-floating counterweight ballast cabin is located on the left side of the driving direction, and the integrated pipeline corridor is arranged between the positive pressure escape capsule and the passage and the bottom anti-floating counterweight ballast cabin.

[0011] In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: the integrated pipeline corridor is used to lay a public pipeline network system and / or a traffic-related pipeline network system.

[0012] In order to better realize the immersed tube traffic tunnel with nickel-based composite steel plate structure described in the present invention, the following setting method is particularly adopted: a fire protection and security system is also arranged in the immersed tube traffic tunnel with nickel-based composite steel plate structure.

[0013] In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: the top height of the positive pressure escape capsule and the passage in the nickel-based composite steel plate structure immersed tube traffic tunnel is greater than the top height of the integrated pipeline corridor and / or the top height of the bottom anti-floating counterweight ballast cabin.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: The invention has the characteristics of high temperature resistance and corrosion resistance and is highly safe.

[0015] The traffic tunnel of the present invention has the characteristic of large available space for public supporting systems.

[0016] The present invention is a full-steel immersed tube tunnel, which has the characteristics of simple use and maintenance.

[0017] The engineering construction cost and operating cost (estimated) of the present invention are reduced by about 1 / 3 compared with the traditional steel-framed concrete immersed tube tunnel.

[0018] The present invention is based on a flexible structural design, adopts a full metal immersed tube structure, has low requirements on foundation, and has the characteristics of simple installation method and short construction period.

[0019] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by implementing the embodiments of the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. As shown in the drawings, the above and other purposes, features and advantages of the present application will be clearer. The same reference numerals indicate the same parts in all the drawings. The drawings are not deliberately scaled to the actual size, and the focus is on showing the main purpose of the present application.

[0021] Figure 1 It is a schematic diagram of an M-type structure of the present invention.

[0022] Figure 2 for Figure 1 Enlarged view of part A.

[0023] Figure 3 It is a schematic diagram of the "flange head + sealing gasket" connection structure of the present invention.

[0024] Figure 4 This is a cross-sectional view of the nickel-based composite steel plate structure immersed tube (first type) described in the present invention.

[0025] Figure 5 This is a cross-sectional view of the nickel-based composite steel plate structure immersed tube (second type) described in the present invention.

[0026] Figure 6 This is a cross-sectional view of the nickel-based composite steel plate structure immersed tube (third type) described in the present invention.

[0027] Among them, 1-nickel-based composite steel plate structure immersed tube, 2-positive pressure escape cabin and passage, 3-integrated pipeline corridor, 4-bottom anti-floating weight ballast, 5-nickel-based steel surface layer, 6-marine steel base layer, 7-welding seam, 8-reinforced inner rib, 9-nut, 10-bolt, 11-sealing gasket, 12-road surface. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0030] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. At the same time, in the description of this application, relational terms such as "first", "second", etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone.

[0031] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated by terms, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, and the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] The functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

[0035] In this article, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, principle, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, principle, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, principle, article or device including the elements.

[0036] Embodiment 1: The nickel-based composite steel plate structure immersed tube traffic tunnel is based on a flexible structural design and adopts a full-metal immersed tube structure. It has low requirements on the foundation and has the characteristics of simple installation method and short construction period. It includes at least one section of nickel-based composite steel plate structure immersed tube 1. A sandwich box beam structure is arranged at the bottom of the nickel-based composite steel plate structure immersed tube 1, and a road surface 12 is arranged above the sandwich box beam structure; a positive pressure escape cabin and passage 2, a comprehensive pipeline corridor 3 and a bottom anti-floating counterweight ballast cabin 4 are arranged in the sandwich box beam structure.

[0037] As a preferred design scheme, the nickel-based composite steel plate structure immersed tube traffic tunnel can be a highway tunnel or a railway tunnel, and at least one section of the nickel-based composite steel plate structure immersed tube 1 is used as the tunnel body, and a sandwich box beam structure is arranged at the bottom of the nickel-based composite steel plate structure immersed tube 1, and the upper part of the sandwich box beam structure is a road surface 12. When it is a highway tunnel, the road surface 12 is preferably an asphalt road surface, and a metal sound-absorbing panel is hung inside the tunnel above the road surface to reduce the noise in the tunnel; when it is a railway tunnel, the road surface 12 is used to pave rails; wherein, the sandwich box beam structure is sequentially laid with a positive pressure escape cabin and passage 2 for emergency escape, an integrated pipeline corridor 3 for laying a public pipe network system or / and a traffic-related pipe network system, and a bottom anti-floating counterweight ballast 4 using cast iron ingots, concrete blocks, and water tanks for ballast; in specific design applications, it can be designed to have an M-shaped, N-shaped, etc. cross-section according to design requirements. When it is an M-shaped, the tunnel bodies are close to each other.

[0038] During installation, the counterweight in the bottom anti-floating counterweight ballast tank 4 is adjusted according to actual needs. During use, the counterweight fine-tuning of the nickel-based composite steel plate structure immersed tube 1 adopts an intelligent water storage management system.

[0039] Embodiment 2: This embodiment is further optimized on the basis of the above-mentioned embodiment, and the similarities with the above-mentioned technical scheme are not repeated here. In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: the nickel-based composite steel plate structure immersed tube 1 includes a marine steel base layer 6 and a nickel-based steel surface layer 5 from the inside to the outside, and the marine steel base layer 6 of the nickel-based composite steel plate structure immersed tube 1 is provided with a T-shaped or H-shaped reinforcing inner rib 8 along the welding seam 7.

[0040] As a preferred design scheme, the nickel-based composite steel plate structure immersed tube 1 includes a marine steel base layer 6 and a nickel-based steel surface layer 5 from the inside to the outside. The marine steel base layer 6 and the nickel-based steel surface layer 5 adopt a composite process to form a nickel-based composite steel plate structure.

[0041] The nickel-based composite steel plate structure can be assembled and welded according to the design requirements to obtain the required nickel-based composite steel plate structure immersed tube 1; during assembly and welding, a T-shaped or H-shaped reinforcing inner rib 8 is provided along the welding seam 7 on the marine steel base layer 6 of the nickel-based composite steel plate structure immersed tube 1.

[0042] The nickel-based composite steel plate structure immersed tube 1 has high strength, good toughness and excellent corrosion resistance.

[0043] Embodiment 3: This embodiment is further optimized on the basis of any of the above embodiments, and the similarities with the above technical solutions are not repeated here. In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: the thickness of the marine steel base layer 6 of the nickel-based composite steel plate structure immersed tube 1 is set according to the water pressure resistance; the nickel-based steel surface layer 5 is set according to the type and thickness of the nickel-based steel with a corrosion resistance life of ≥150 years.

[0044] Embodiment 4: This embodiment is further optimized on the basis of any of the above embodiments, and the similarities with the above technical solutions are not repeated here. In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: when there are two or more sections of nickel-based composite steel plate structure immersed tubes 1, the front and rear sections of the nickel-based composite steel plate structure immersed tubes 1 adopt a "flange head + sealing gasket" connection structure.

[0045] As a preferred design scheme, when each of the nickel-based composite steel plate structure immersed tube traffic tunnel is composed of more than one section of nickel-based composite steel plate structure immersed tube 1, one end of the first and last nickel-based composite steel plate structure immersed tube 1 adopts a flange head structure design, and both ends of the remaining nickel-based composite steel plate structure immersed tube 1 adopt a flange head structure design; a separate ship steel flange is welded to the end of the immersed tube, and a nickel base plate is decoratively welded on the surface layer, and threaded holes are set at the inner and outer convex rings, and then a sealing gasket (alloy material) is installed between the sections of the nickel-based composite steel plate structure immersed tube 1, and the threaded holes at the corresponding parts of the previous section of the nickel-based composite steel plate structure immersed tube 1 are connected with the threaded holes at the corresponding parts of the next section of the nickel-based composite steel plate structure immersed tube 1, and then the two are fastened with bolts and nuts.

[0046] Embodiment 5: This embodiment is further optimized on the basis of any of the above embodiments, and the similarities with the above technical solutions are not repeated here. In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: a fire automatic rolling shutter cabin is also arranged between the sections of the composite steel plate structure immersed tube 1. When a fire occurs in the composite steel plate structure immersed tube 1, the shutter in the fire automatic rolling shutter cabin of the composite steel plate structure immersed tube 1 with fire will automatically descend and close, thereby blocking the fire from spreading to the composite steel plate structure immersed tube 1 without fire, thereby avoiding the spread of fire.

[0047] Embodiment 6: This embodiment is further optimized on the basis of any of the above embodiments, and the similarities with the above technical solutions are not repeated here. In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: the length and height ratio of the nickel-based composite steel plate structure immersed tube 1 is ≥1:20.

[0048] Embodiment 7: This embodiment is further optimized on the basis of any of the above embodiments, and the similarities with the above technical solutions are not repeated here. In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: in each nickel-based composite steel plate structure immersed tube traffic tunnel connected by nickel-based composite steel plate structure immersed tubes 1: the positive pressure escape capsule and channel 2 are located on the right side of the driving direction, the bottom anti-floating counterweight ballast cabin 4 is located on the left side of the driving direction, and the integrated pipeline corridor 3 is arranged between the positive pressure escape capsule and channel 2 and the bottom anti-floating counterweight ballast cabin 4.

[0049] Embodiment 8: This embodiment is further optimized on the basis of any of the above embodiments, and the similarities with the above technical solutions are not repeated here. In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: the integrated pipeline corridor 3 is used for laying public pipeline network systems and / or traffic-related pipeline network systems.

[0050] Embodiment 9: This embodiment is further optimized on the basis of any of the above embodiments, and the similarities with the above technical solutions are not repeated here. In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is specially adopted: a fire protection and security system is also provided in the nickel-based composite steel plate structure immersed tube traffic tunnel.

[0051] Embodiment 10: This embodiment is further optimized on the basis of any of the above embodiments, and the similarities with the above technical solutions are not repeated here. In order to better realize the nickel-based composite steel plate structure immersed tube traffic tunnel described in the present invention, the following setting method is particularly adopted: the upper top height of the positive pressure escape capsule and the channel 2 in the nickel-based composite steel plate structure immersed tube traffic tunnel is greater than the upper top height of the integrated pipeline corridor 3 and / or the upper top height of the bottom anti-floating counterweight ballast cabin 4.

[0052] Embodiment 11: Nickel-based composite steel plate structure immersed tube traffic tunnel, combined with Figure 1~Figure 3 As shown, this embodiment takes a highway tunnel as an example. The cross-section formed by two adjacent tunnel bodies is M-shaped. Each tunnel body has multiple sections of nickel-based composite steel plate structure immersed tubes 1 connected by "flange head + sealing gasket".

[0053] The immersed tube 1 of the nickel-based composite steel plate structure comprises a marine steel base layer 6 and a nickel-based steel surface layer 5 from the inside to the outside. The marine steel base layer 6 and the nickel-based steel surface layer 5 are composited to form a nickel-based composite steel plate structure.

[0054] The nickel-based composite steel plate structure can be assembled and welded according to the design requirements to obtain the required nickel-based composite steel plate structure immersed tube; during assembly and welding, a T-shaped or H-shaped reinforcing inner rib 8 is provided along the welding seam 7 on the marine steel base layer 6 of the nickel-based composite steel plate structure immersed tube 1.

[0055] Among them, the thickness of the marine steel base layer 6 of the nickel-based composite steel plate structure immersed tube 1 is set according to the water pressure resistance; the type and thickness of the nickel-based steel surface layer 5 are set according to the corrosion resistance life ≥150 years; the length and height ratio of the nickel-based composite steel plate structure immersed tube 1 is ≥1:20.

[0056] During the design and installation, one end of the first and last nickel-based composite steel plate structure immersed tubes 1 adopts a flange head structure design, while both ends of the remaining nickel-based composite steel plate structure immersed tubes 1 adopt a flange head structure design; a separate ship steel flange is welded to the end of the immersed tube, and a nickel base plate is decoratively welded on the surface layer, and threaded holes are set at the inner and outer convex rings. Then, sealing gaskets (alloy material) 11 are installed between the sections of the nickel-based composite steel plate structure immersed tube 1, and the threaded holes at the corresponding parts of the previous section of the nickel-based composite steel plate structure immersed tube 1 are connected with the threaded holes at the corresponding parts of the next section of the nickel-based composite steel plate structure immersed tube 1, and then the two are fastened with bolts 10 and nuts 9.

[0057] A sandwich box beam structure is arranged at the bottom of each section of the nickel-based composite steel plate structure immersed tube 1, and the sandwich box beam structures of the sections correspond to each other. Above the sandwich box beam structure is a road surface 12. When used as a highway tunnel, the road surface 12 is preferably an asphalt road surface, and a metal sound-absorbing panel is hung inside the tunnel above the road surface to reduce noise in the tunnel.

[0058] Among them, the sandwich box girder structure of each tunnel is sequentially laid with a positive pressure escape capsule and passage 2 for emergency escape, an integrated pipe gallery 3 for laying a public pipe network system or / and a traffic-related pipe network system, and a bottom anti-floating counterweight ballast 4 using pig iron ingots, concrete blocks, and water tanks for ballast. On the whole, the layout of the sandwich box girder structure of the two tunnels is: positive pressure escape capsule and passage 2-integrated pipe gallery 3-bottom anti-floating counterweight ballast 4-bottom anti-floating counterweight ballast 4-integrated pipe gallery 3-positive pressure escape capsule and passage 2; further, in the nickel-based composite steel plate structure immersed tube traffic tunnel, the top height of the positive pressure escape capsule and passage 2 is greater than the top height of the integrated pipe gallery 3 or / and the top height of the bottom anti-floating counterweight ballast 4.

[0059] In addition, fire-fighting automatic rolling shutter cabins are arranged between the sections of the composite steel plate structure immersed tubes 1. When a fire occurs in the composite steel plate structure immersed tube 1, the shutters in the fire-fighting automatic rolling shutter cabins of the composite steel plate structure immersed tube 1 with fire will automatically descend and close, thereby blocking the fire from spreading to the composite steel plate structure immersed tube 1 without fire, thereby avoiding the spread of the fire; fire-fighting and security systems are also arranged in the nickel-based composite steel plate structure immersed tube traffic tunnel.

[0060] like Figure 4 As shown in FIG. 1 , the top of the immersed tube of the nickel-based composite steel plate structure can be designed as a circular arc top; Figure 5 As shown in FIG. 1 , the top of the nickel-based composite steel plate structure immersed tube can be designed as a bent top, such as Figure 6 As shown, the top of the nickel-based composite steel plate structure immersed tube can be directly designed as a flat top. According to actual needs, the specific shape of the nickel-based composite steel plate structure immersed tube is not limited thereto.

[0061] In actual use, when the required traffic tunnel can be formed by only one nickel-based composite steel plate structure immersed tube traffic tunnel, the sandwich box girder structure can also be sequentially laid with a positive pressure escape capsule and passage 2 for emergency escape, a comprehensive pipeline corridor 3 for laying a public pipeline network system or / and a traffic-related pipeline network system, a bottom anti-buoyancy counterweight ballast 4 using pig iron ingots, concrete blocks, and water tanks for ballasting, and a positive pressure escape capsule and passage 2 for emergency escape.

[0062] The above is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of this application. For those skilled in the art, this application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the principles, ideas, spirits and principles of this application shall be included in the scope of protection of this application.

Claims

1. The immersed tube traffic tunnel with nickel-based composite steel plate structure is characterized by: The invention comprises at least one section of a nickel-based composite steel plate structure immersed tube (1), a sandwich box beam structure is arranged at the bottom of the nickel-based composite steel plate structure immersed tube (1), and a road surface (12) is arranged above the sandwich box beam structure; a positive pressure escape cabin and passage (2), a comprehensive pipe gallery (3) and a bottom anti-floating counterweight ballast cabin (4) are arranged in the sandwich box beam structure.

2. The immersed tube traffic tunnel with nickel-based composite steel plate structure according to claim 1 is characterized in that: The nickel-based composite steel plate structure immersed tube (1) comprises, from the inside to the outside, a marine steel base layer (6) and a nickel-based steel surface layer (5), and reinforcing inner ribs (8) of a T-shaped or H-shaped structure are provided along the welding seam (7) of the marine steel base layer (6) of the nickel-based composite steel plate structure immersed tube (1).

3. The immersed tube traffic tunnel with nickel-based composite steel plate structure according to claim 1 is characterized by: The thickness of the marine steel base layer (6) of the nickel-based composite steel plate structure immersed tube (1) is set according to the water pressure resistance; the type and thickness of the nickel-based steel surface layer (5) are set according to the corrosion resistance life of ≥150 years.

4. The immersed tube traffic tunnel with nickel-based composite steel plate structure according to claim 1 is characterized by: When there are two or more sections of nickel-based composite steel plate structure immersed tubes (1), the front and rear sections of the nickel-based composite steel plate structure immersed tubes (1) adopt a "flange head + sealing gasket" connection structure.

5. The immersed tube traffic tunnel with nickel-based composite steel plate structure according to claim 4 is characterized in that: An automatic fire-fighting shutter compartment is also provided between the sections of the composite steel plate structure immersed tube (1).

6. The immersed tube traffic tunnel with nickel-based composite steel plate structure according to any one of claims 1 to 5, characterized in that: The ratio of length to height of the nickel-based composite steel plate structure immersed tube (1) is ≥1:

20.

7. The immersed tube traffic tunnel with nickel-based composite steel plate structure according to any one of claims 1 to 5, characterized in that: In each nickel-based composite steel plate structure immersed tube traffic tunnel formed by connecting the nickel-based composite steel plate structure immersed tubes (1): the positive pressure escape cabin and the passage (2) are located on the right side of the driving direction, the bottom anti-floating counterweight ballast cabin (4) is located on the left side of the driving direction, and the integrated pipe gallery (3) is arranged between the positive pressure escape cabin and the passage (2) and the bottom anti-floating counterweight ballast cabin (4).

8. The immersed tube traffic tunnel with nickel-based composite steel plate structure according to any one of claims 1 to 5, characterized in that: The integrated pipe gallery (3) is used for laying a public pipe network system and / or a traffic-related pipe network system.

9. The immersed tube traffic tunnel with a nickel-based composite steel plate structure according to any one of claims 1 to 5, characterized in that: A fire-fighting and security system is also provided in the nickel-based composite steel plate structure immersed tube traffic tunnel.

10. The immersed tube traffic tunnel with nickel-based composite steel plate structure according to any one of claims 1 to 5, characterized in that: The top height of the positive pressure escape capsule and passage (2) in the nickel-based composite steel plate structure immersed tube traffic tunnel is greater than the top height of the integrated pipe gallery (3) and / or the top height of the bottom anti-buoyancy counterweight ballast cabin (4).

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