A human cabin for a tunneling machine

Abstract

The utility model discloses a kind of shield machine's man-cabin, including man-cabin main body, the inside of man-cabin main body is equipped with reinforcing mechanism, the reinforcing mechanism includes the truss assembly of setting the front and rear of man-cabin main body and the longitudinal rod of connecting two truss assemblies, the truss assembly includes L-shaped support rod, first arc support rod, second arc support rod, straight web member and inclined web member, the both ends of L-shaped support rod are fixedly connected with the both ends of first arc support rod. The utility model's shield machine man-cabin is set in the inside of man-cabin main body with the reinforcing mechanism of truss assembly and longitudinal rod component matched with cabin body shape, utilizes truss structure stability dispersion external load, forms triangular stable structure and combines longitudinal support, so that structural strength is promoted by more than 30%, stress concentration coefficient is reduced by about 40%, to significantly reduce deformation risk, improve durability, meet the demand of complex construction environment.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, and in particular to a manned cabin for a tunnel boring machine. Background Technology

[0002] During tunnel boring machine (TBM) construction, the personnel cabin, as a crucial structure for personnel to enter the TBM for inspection, maintenance, or handling emergencies, must withstand complex loads from external soil and rock pressure, groundwater pressure, and other factors. In existing technologies, the structural strength and deformation resistance of traditional TBM personnel cabins often rely on the wall thickness of the cabin itself or simple support structures. When faced with high water pressure or complex geological conditions, this can easily lead to structural deformation, localized stress concentration, and other problems, resulting in decreased cabin sealing and even safety hazards. This makes it difficult to meet the high reliability and safety requirements of modern TBM engineering.

[0003] Therefore, we propose a crew cabin for tunnel boring machines. Utility Model Content

[0004] The main purpose of this utility model is to provide a manned cabin for a tunnel boring machine (TBM) to prevent structural deformation and local stress concentration under high water pressure and complex geological conditions, avoid reduced sealing and safety hazards caused by structural deformation, thereby improving the structural strength and deformation resistance of the manned cabin, enhancing its stability under complex loads, meeting the high reliability and high safety requirements of modern TBM engineering, and effectively solving the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A manhole for a tunnel boring machine includes a manhole body, and a reinforcement mechanism is provided on the inner side of the manhole body. The reinforcement mechanism includes a truss assembly that sets the front and rear parts of the manhole body and a longitudinal member connecting the two truss assemblies. The truss assembly includes an L-shaped support member, a first arc-shaped support member, a second arc-shaped support member, a straight web member, and an oblique web member.

[0006] By adopting the above technical solution, the reinforcement mechanism supports and reinforces the main body of the cabin from the inside through the front and rear truss components and the longitudinal members connecting them. By utilizing the stability of the truss structure, the external pressure and other loads borne by the main body of the cabin are distributed, thereby improving the overall structural strength and deformation resistance of the cabin.

[0007] Furthermore, the two ends of the L-shaped support rod are fixedly connected to the two ends of the first arc-shaped support rod, and the two ends of the second arc-shaped support rod are fixedly connected to the inner walls of both sides of the L-shaped support rod.

[0008] By adopting the above technical solution, the L-shaped support member is connected to the first arc-shaped support member, and the second arc-shaped support member is fixed to the L-shaped support member, together forming the basic frame structure of the truss assembly. This provides a basic support structure for the subsequent installation of straight web members, diagonal web members, and longitudinal members, enabling the truss assembly to form a stable geometric shape and better perform its supporting function.

[0009] Furthermore, a plurality of longitudinally arranged members are fixedly connected between the two first arc-shaped support members, and a plurality of straight-web members are fixedly connected between the inner sidewall of the first arc-shaped support member and the outer sidewall of the second arc-shaped support member.

[0010] By adopting the above technical solution, multiple longitudinal members connect two first arc-shaped support members, enhancing the structural stability of the main body of the cabin along the length direction; multiple straight web members connect the inner wall of the first arc-shaped support member and the outer wall of the second arc-shaped support member, further refining the internal structure of the truss assembly and improving the stiffness of the truss assembly itself, thereby more effectively transferring and distributing the load to the main body of the cabin.

[0011] Furthermore, inclined web members are provided between the straight web members, and the two ends of the inclined web members are fixedly connected to the inner side wall of the first arc-shaped support member and the outer side wall of the second arc-shaped support member, respectively.

[0012] By adopting the above technical solution, the diagonal web members are set between the straight web members and cooperate with the straight web members to form a web member system similar to a truss. By utilizing the stability of the triangle, the connection strength and structural stability between the first arc-shaped support member and the second arc-shaped support member are further enhanced, so that the truss assembly can better withstand forces from different directions.

[0013] Furthermore, the inner side of the main body of the cabin is provided with two vertically arranged straight surfaces and curved surfaces, the L-shaped support rod is matched with the straight surface, and the first curved support rod is matched with the curved surface.

[0014] By adopting the above technical solution, the straight and curved surfaces on the inner side of the cabin body are matched with the L-shaped support rod and the first arc-shaped support rod, respectively, so that the truss assembly can accurately fit the inner shape of the cabin body, ensuring close contact between the reinforcement mechanism and the cabin body. When reinforcing the cabin body, the force transmission is more direct and uniform, improving the reinforcement effect.

[0015] Furthermore, the L-shaped support member has a chamfer at the included angle, and the chamfer is located at the connection of the two straight surfaces.

[0016] By adopting the above technical solution, the chamfer at the included angle of the L-shaped support rod is located at the connection point of the inner straight surface of the two cabin main bodies. This can avoid the formation of sharp corners at the included angle of the L-shaped support rod, reduce stress concentration, and facilitate the fitting and installation of the L-shaped support rod with the straight surface, thereby improving the durability of the structure.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention relates to a manhole for a tunnel boring machine. By setting up a reinforcement mechanism consisting of truss components and longitudinal members on the inner side of the manhole body, the external pressure and other loads are distributed and transmitted through the frame system formed by L-shaped support members (3), first arc-shaped support members (4), second arc-shaped support members (5), and the web member system consisting of straight web members (6) and oblique web members (7) through the stability principle of the truss structure. Among them, the oblique web members (7) and the straight web members (6) form a triangular stable structure. Combined with the longitudinal members (8) supporting the length of the manhole body, it can effectively resist loads in all directions, increase the structural strength by more than 30%, and significantly reduce the deformation risk of the manhole body. It is suitable for harsh construction environments such as high water pressure and complex strata.

[0018] (2) In the manhole of a tunnel boring machine of this utility model, the L-shaped support rod (3) of the reinforcement mechanism matches the straight surface (10) on the inner side of the manhole body (1), and the first arc-shaped support rod (4) matches the arc surface (11). The chamfer design at the included angle of the L-shaped support rod (3) can fit the connection between the straight surfaces of the two manholes, ensuring that the reinforcement mechanism fits seamlessly with the internal shape of the manhole. This design avoids the force transmission loss caused by poor contact in traditional reinforcement methods, so that the load can be directly and evenly distributed to the entire cross section of the manhole body through the reinforcement mechanism, reducing the phenomenon of local stress concentration (the stress concentration coefficient is reduced by about 40%), while improving the structural durability and extending the service life of the manhole. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the manhole of a tunnel boring machine according to the present invention.

[0020] Figure 2 This is a partial sectional view of the main body of the man cabin of a tunnel boring machine according to the present invention.

[0021] Figure 3 This is a schematic diagram of the reinforcement mechanism for the manhole of a tunnel boring machine according to the present invention.

[0022] In the diagram: 1. Main body of the cabin; 2. Reinforcement mechanism; 3. L-shaped support rod; 4. First arc-shaped support rod; 5. Second arc-shaped support rod; 6. Straight web member; 7. Slanted web member; 8. Longitudinal member; 9. Chamfer; 10. Straight surface; 11. Curved surface. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] To prevent structural deformation and localized stress concentration in the manned tunnel under high water pressure and complex geological conditions, and to avoid decreased sealing and safety hazards caused by structural deformation, the structural strength and deformation resistance of the manned tunnel must be improved to enhance its stability under complex loads and meet the high reliability and safety requirements of modern tunnel boring machines. Figure 1 , Figure 2 , Figure 3 As shown, a manned cabin of a tunnel boring machine includes a manned cabin body 1. The manned cabin body 1 is provided with a reinforcement mechanism 2 on its inner side. The reinforcement mechanism 2 includes a truss assembly that sets the front and rear parts of the manned cabin body 1 and a longitudinal member 8 that connects the two truss assemblies. The truss assembly includes an L-shaped support member 3, a first arc-shaped support member 4, a second arc-shaped support member 5, a straight web member 6, and a diagonal web member 7.

[0025] In use, the reinforcement mechanism 2 supports and reinforces the main body of the cabin 1 from the inside through the truss components at the front and rear and the longitudinal members 8 connecting them. By utilizing the stability of the truss structure, the external pressure and other loads borne by the main body of the cabin 1 are distributed, thereby improving the overall structural strength and deformation resistance of the cabin.

[0026] For example, such as Figure 3 As shown, the present invention further includes that the two ends of the L-shaped support rod 3 are fixedly connected to the two ends of the first arc-shaped support rod 4, and the two ends of the second arc-shaped support rod 5 are fixedly connected to the inner walls of both sides of the L-shaped support rod 3.

[0027] In use, the L-shaped support member 3 is connected to the first arc-shaped support member 4, and the second arc-shaped support member 5 is fixed to the L-shaped support member 3, together forming the basic frame structure of the truss assembly. This provides a basic support structure for the subsequent installation of the straight web members 6, the diagonal web members 7, and the longitudinal members 8, enabling the truss assembly to form a stable geometric shape and better perform its supporting function.

[0028] For example, such as Figure 3 As shown, the present invention also includes a plurality of longitudinally arranged longitudinal members 8 fixedly connected between the two first arc-shaped support members 4, and a plurality of straight-web members 6 fixedly connected between the inner side wall of the first arc-shaped support member 4 and the outer side wall of the second arc-shaped support member 5.

[0029] In use, multiple longitudinal members 8 connect two first arc-shaped support members 4, enhancing the structural stability of the main body 1 of the cabin along the length direction; multiple straight web members 6 connect the inner wall of the first arc-shaped support member 4 and the outer wall of the second arc-shaped support member 5, further refining the internal structure of the truss assembly and improving the rigidity of the truss assembly itself, thereby more effectively transferring and distributing the load to the main body 1 of the cabin.

[0030] For example, such as Figure 3 As shown, the present invention also includes a diagonal web member 7 provided between the straight web members 6, and the two ends of the diagonal web member 7 are respectively fixedly connected to the inner side wall of the first arc-shaped support member 4 and the outer side wall of the second arc-shaped support member 5.

[0031] In use, the diagonal web members 7 are placed between the straight web members 6 and cooperate with the straight web members 6 to form a web member system similar to a truss. By utilizing the stability of the triangle, the connection strength and structural stability between the first arc-shaped support member 4 and the second arc-shaped support member 5 are further enhanced, so that the truss assembly can better withstand forces from different directions.

[0032] For example, such as Figure 2 , Figure 3 As shown, the present invention also includes two vertically arranged straight surfaces 10 and arc surfaces 11 on the inner side of the main body of the cabin, the L-shaped support rod 3 is matched with the straight surface 10, and the first arc-shaped support rod 4 is matched with the arc surface 11.

[0033] In use, the straight surface 10 and the curved surface 11 on the inner side of the main body 1 of the cabin match the L-shaped support rod 3 and the first curved support rod 4 respectively, so that the truss assembly can accurately fit the inner shape of the main body 1 of the cabin, ensuring that the reinforcement mechanism 2 and the main body 1 of the cabin are in close contact. When reinforcing the main body 1 of the cabin, the force transmission is more direct and uniform, improving the reinforcement effect.

[0034] For example, such as Figure 3 As shown, the present invention also includes a chamfer 9 at the included angle of the L-shaped support rod 3, and the chamfer 9 is located at the connection of the two straight surfaces 10.

[0035] When in use, the chamfer 9 at the included angle of the L-shaped support rod 3 is located at the connection point of the inner straight surface 10 of the two cabin main bodies 1. This can prevent the L-shaped support rod 3 from forming a sharp angle at the included angle, reduce stress concentration, and facilitate the fitting and installation of the L-shaped support rod 3 with the straight surface 10, thereby improving the durability of the structure.

[0036] It should be noted that this utility model is a man cabin for a tunnel boring machine. First, the two ends of the L-shaped support rod 3 are fixedly connected to the two ends of the first arc-shaped support rod 4. Then, the two ends of the second arc-shaped support rod 5 are fixed to the inner walls of both sides of the L-shaped support rod 3, thus constructing the basic framework of the truss assembly. Then, multiple longitudinal rods 8 arranged at equal intervals are fixedly connected between the two first arc-shaped support rods 4. At the same time, multiple straight web members 6 arranged at equal intervals are fixedly connected between the inner side wall of the first arc-shaped support rod 4 and the outer side wall of the second arc-shaped support rod 5, further improving the truss assembly structure. Finally, diagonal web members 7 are set between the straight web members 6, and the two ends of the diagonal web members 7 are fixedly connected to the inner side wall of the first arc-shaped support rod 4 and the outer side wall of the second arc-shaped support rod 5, respectively, using the stability of triangles to enhance the structural strength of the truss assembly. The assembled truss components are then installed at the front and rear of the main body 1 of the man-cabin, ensuring that the L-shaped support rods 3 match the straight surface 10 on the inner side of the main body 1, and the first arc-shaped support rods 4 match the arc surface 11 on the inner side of the main body 1. This ensures that the reinforcement mechanism 2 precisely conforms to the inner shape of the main body 1, guaranteeing direct and uniform force transmission. In actual use, when the tunnel boring machine is operating, the main body 1 of the man-cabin bears external pressure and other loads. The reinforcement mechanism 2, through the front and rear truss components and the longitudinal rods 8 connecting them, supports and reinforces the main body 1 of the man-cabin from the inside. By utilizing the stability of the truss structure to distribute the load, it improves the overall structural strength and deformation resistance of the man-cabin, ensuring the safe use of the man-cabin.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A manned cabin for a tunnel boring machine, comprising a main body (1), characterized in that, The inner side of the main body of the cabin (1) is provided with a reinforcement mechanism (2). The reinforcement mechanism (2) includes a truss assembly for the front and rear of the main body of the cabin (1) and a longitudinal member (8) connecting the two truss assemblies. The truss assembly includes an L-shaped support member (3), a first arc-shaped support member (4), a second arc-shaped support member (5), a straight web member (6), and a diagonal web member (7). The two ends of the L-shaped support member (3) are fixedly connected to the two ends of the first arc-shaped support member (4), and the two ends of the second arc-shaped support member (5) are fixedly connected to the inner walls of both sides of the L-shaped support member (3). Multiple longitudinal members (8) are fixedly connected between the two first arc-shaped support members (4), and multiple straight web members (6) are fixedly connected between the inner wall of the first arc-shaped support member (4) and the outer wall of the second arc-shaped support member (5).

2. The personnel cabin of a tunnel boring machine according to claim 1, characterized in that: An oblique web member (7) is provided between adjacent straight web members (6), and the two ends of the oblique web member (7) are fixedly connected to the inner wall of the first arc-shaped support member (4) and the outer wall of the second arc-shaped support member (5), respectively.

3. The personnel cabin of a tunnel boring machine according to claim 1, characterized in that: The inner side of the main body (1) of the cabin has two vertically arranged straight surfaces (10) and arc surfaces (11). The L-shaped support rod (3) matches the straight surface (10), and the first arc-shaped support rod (4) matches the arc surface (11).

4. The personnel cabin of a tunnel boring machine according to claim 1, characterized in that: The L-shaped support member (3) has a chamfer (9) at the included angle, and the chamfer (9) is located at the connection of the two straight surfaces (10).

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