Tunnel segment connecting structure

Abstract

The utility model relates to the technical field of tunnel segments, and discloses a tunnel segment connecting structure which comprises segment bodies, the two side faces of each segment body are each provided with two first bolt holes, the outer wall of each segment body is provided with four second bolt holes, and two sealing strips are arranged between every two adjacent segment bodies. According to the tunnel segment connecting structure, the sealing grooves are formed in the side faces of the segment bodies, and the sealing strips are arranged in the sealing grooves of every two adjacent segment bodies, so that the sealing performance of connection between the segment bodies is improved, and the first bolt holes and the second bolt holes which communicate with each other are formed in the segment bodies; according to the tunnel segment, two adjacent segment bodies can be conveniently connected and fixed through a connecting bolt, the assembling difficulty of the tunnel segment is lowered, the workload of workers is relieved, the working efficiency is improved, and the problems that in the existing tunnel segment connecting and installing process, operation steps are troublesome, and the sealing performance of the segment joint is poor are solved.

Description

Technical Field

[0001] This application relates to the technical field of tunnel segments, and specifically to a tunnel segment connection structure. Background Art

[0002] Tunnel segments are the main assembled components in shield tunneling, forming the innermost barrier of the tunnel, mainly bearing the functions of resisting soil pressure, groundwater pressure, and some special loads. These segments are usually in the form of reinforced concrete rings, known as shield segments. Their quality is directly related to the overall quality and safety of the tunnel, affecting the waterproof performance and durability of the tunnel. Currently, tunnel segments are usually connected by bolts, and bolts are directly used at the pipe joints.

[0003] The operation steps in the existing installation process of tunnel segment connections are relatively troublesome, and the sealing performance at the segment joints is poor. Summary of the Utility Model

[0004] In view of the deficiencies of the prior art, this application provides a tunnel segment connection structure, which has the advantages of facilitating the connection and installation of tunnel segments, reducing the difficulty in the segment assembly process, and enhancing the sealing performance of the segment connection, solving the problems that the operation steps in the existing installation process of tunnel segment connections are relatively troublesome and the sealing performance at the segment joints is poor.

[0005] To achieve the above object, this application provides the following technical solution: A tunnel segment connection structure includes a segment body. Two first bolt holes are respectively opened on both side surfaces of the segment body, and four second bolt holes are opened on the outer wall of the segment body. Two sealing strips are provided between adjacent segment bodies.

[0006] Through the above solution, due to the relatively troublesome operation steps in the existing installation process of tunnel segment connections and the poor sealing performance at the pipe joints, by opening a sealing groove on the side surface of the segment body and arranging sealing strips in the sealing grooves of adjacent segment bodies, the sealing performance of the connection between segment bodies is improved. By opening communicating first bolt holes and second bolt holes inside the segment body, it is convenient to use connection bolts to connect and fix adjacent segment bodies, reducing the assembly difficulty of tunnel segments, lightening the workload of workers, and improving work efficiency.

[0007] Further, sealing grooves are respectively opened on both side surfaces of the segment body, and the sealing strips are respectively embedded inside adjacent sealing grooves.

[0008] Through the above solution, by embedding the sealing strips inside the sealing grooves of adjacent segment bodies, the sealing performance at the connection position of adjacent segment bodies is optimized, avoiding the phenomenon of easy water leakage and air leakage between segment bodies, and ensuring the assembly quality between tunnel segments.

[0009] Further, the positions of the first bolt holes correspond to the positions of the second bolt holes respectively, and the first bolt holes communicate with the second bolt holes respectively.

[0010] Through the above solution, adjacent segment bodies can be connected and positioned through the communicating first bolt holes and second bolt holes, facilitating the assembly and connection of adjacent segment bodies.

[0011] Further, the bolt through-hole formed by the communication of the first bolt hole and the second bolt hole is arc-shaped, and connecting bolts are slidably inserted through the bolt through-holes formed by the communication of the first bolt hole and the second bolt hole of two adjacent segment bodies respectively.

[0012] Through the above solution, the adjacent segment bodies are connected and fixed by the connecting bolts passing through the bolt through-holes formed by the communication of the adjacent first bolt holes and second bolt holes, facilitating the assembly and connection of adjacent segment bodies.

[0013] Further, the connecting bolt is arc-shaped, and the connecting bolt is a segment bolt.

[0014] Through the above solution, the connecting bolt is adapted to the bolt channel structure formed by the communication of the adjacent first bolt hole and the second bolt hole, thereby facilitating the insertion and installation of the connecting bolt.

[0015] Further, thread structures are provided at both ends of the connecting bolt, and two nuts are respectively threadedly connected to the connecting bolt through the thread structures at both ends.

[0016] Through the above solution, the connecting bolt is fixed to two adjacent segment bodies by the nuts, connecting and fixing the two adjacent segment bodies, and facilitating the fixed assembly of tunnel segments.

[0017] Further, two gaskets are slidably connected to the outer circumferential surface of the connecting bolt, and the gaskets are respectively located between the nuts and the second bolt holes.

[0018] Through the above solution, the gaskets can prevent the nuts from loosening easily after being tightened, and form a protective layer between the nuts and the segment bodies, reducing the wear that may be caused by direct contact and avoiding damaging the segment bodies.

[0019] Further, four grooves are formed on the outer wall of the segment body, and the second bolt holes are respectively located inside the grooves.

[0020] Through the above solution, the grooves facilitate the installation operation of the connecting bolts by workers, and cause the nuts and gaskets to be located inside the segment body, avoiding occupying external space and affecting the outside.

[0021] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0022] The tunnel segment connection structure improves the sealing performance between segment bodies by providing a sealing groove on the side surface of the segment body and arranging sealing strips in the sealing grooves of two adjacent segment bodies. By providing a first bolt hole and a second bolt hole that communicate with each other inside the segment body, it is convenient to use connection bolts to connect and fix two adjacent segment bodies, reducing the assembly difficulty of tunnel segments, alleviating the workload of workers, improving work efficiency, and solving the problems of cumbersome operation steps and poor sealing performance at the segment joints during the connection and installation of existing tunnel segments. Description of the Drawings

[0023] Figure 1 It is a three-dimensional structure diagram of the whole application;

[0024] Figure 2 It is a sectional structure diagram of the whole application;

[0025] Figure 3 It is a structure diagram of the segment body of the application;

[0026] Figure 4 It is a sectional top view structure diagram of the application;

[0027] Figure 5 It is a structure diagram of the connection bolt of the application.

[0028] In the figure:

[0029] 1. Segment body; 2. First bolt hole; 3. Second bolt hole; 4. Sealing strip; 5. Groove; 6. Sealing groove; 7. Connection bolt; 8. Nut; 9. Gasket. Detailed Implementation Modes

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , in a tunnel segment connection structure in this embodiment, it includes a segment body 1. Two first bolt holes 2 are respectively provided on both side surfaces of the segment body 1, and four second bolt holes 3 are provided on the outer wall of the segment body 1. Two sealing strips 4 are provided between two adjacent segment bodies 1.

[0032] Please refer to Figure 1 , Figure 3 and Figure 4, sealing grooves 6 are respectively formed on both side surfaces of the segment body 1, and the sealing strips 4 are respectively embedded into the interiors of adjacent sealing grooves 6. By embedding the sealing strips 4 into the sealing grooves 6 of adjacent segment bodies 1, the sealing performance at the connection positions of adjacent segment bodies 1 is optimized, preventing water leakage and air leakage from easily occurring in the gaps between segment bodies 1 and ensuring the assembly quality between tunnel segments.

[0033] Please refer to Figure 1 、 Figure 3 and Figure 4 , the positions of the first bolt holes 2 respectively correspond to the positions of the second bolt holes 3, and the first bolt holes 2 are respectively communicated with the second bolt holes 3, enabling adjacent segment bodies 1 to be connected and positioned through the communicated first bolt holes 2 and second bolt holes 3, facilitating the assembly connection of adjacent segment bodies 1.

[0034] Please refer to Figure 2 and Figure 5 , the bolt through holes formed by the communication of the first bolt holes 2 and the second bolt holes 3 are arc-shaped. Adjacent segment bodies 1 are respectively slidably inserted with connection bolts 7 through the bolt through holes formed by the communication of the first bolt holes 2 and the second bolt holes 3. The adjacent segment bodies 1 are connected and fixed by the connection bolts 7 passing through the bolt through holes formed by the communication of adjacent first bolt holes 2 and second bolt holes 3, facilitating the assembly connection of adjacent segment bodies 1.

[0035] Please refer to Figure 2 and Figure 5 , the connection bolt 7 is arc-shaped, and the connection bolt 7 is a segment bolt, enabling the connection bolt 7 to be adapted to the bolt channel structure formed by the communication of adjacent first bolt holes 2 and second bolt holes 3, and thus facilitating the insertion and installation of the connection bolt 7.

[0036] Please refer to Figure 2 and Figure 5 , both ends of the connection bolt 7 are provided with thread structures, and the connection bolt 7 is respectively threadedly connected with two nuts 8 through the thread structures at both ends. The connection bolt 7 is fixed on adjacent two segment bodies 1 by the nuts 8, connecting and fixing adjacent two segment bodies 1, facilitating the fixed assembly of tunnel segments.

[0037] Please refer to Figure 2 and Figure 5 , two gaskets 9 are slidably connected to the outer circumferential surface of the connection bolt 7, and the gaskets 9 are respectively located between the nuts 8 and the second bolt holes 3. The gaskets 9 can prevent the nuts 8 from easily loosening after being tightened and form a protective layer between the nuts 8 and the segment body 1, reducing the wear that may be caused by direct contact and avoiding damaging the segment body 1.

[0038] Please refer to Figure 1 、 Figure 3 and Figure 4, four grooves 5 are provided on the outer wall of the segment body 1, and the second bolt holes 3 are respectively located inside the grooves 5. The grooves 5 facilitate the installation operation of the connecting bolts 7 by workers, and cause the nuts 8 and washers 9 to be located inside the segment body 1, avoiding occupying external space and causing impacts on the outside.

[0039] A tunnel segment connection structure in this embodiment improves the sealing performance of the connection between segment bodies 1 by providing a sealing groove 6 on the side of the segment body 1 and arranging a sealing strip 4 in the sealing grooves 6 of two adjacent segment bodies 1. By providing a first bolt hole 2 and a second bolt hole 3 that communicate with each other inside the segment body 1, it is convenient to use a connecting bolt 7 to connect and fix two adjacent segment bodies 1, reducing the assembly difficulty of tunnel segments, lightening the operation burden of workers, improving the operation efficiency, and solving the problems that the operation steps in the existing tunnel segment connection and installation process are relatively troublesome and the sealing performance at the segment joints is poor.

[0040] It should be noted that the sealing strip 4 is made of rubber.

[0041] The working principle of the above embodiment is as follows:

[0042] When it is necessary to connect and install two adjacent segment bodies 1, first install the sealing strip 4 into the sealing groove 6 at the butt joint position of the segment body 1, then butt the two segment bodies 1, and then insert the connecting bolt 7 through the second bolt hole 3 of one segment body 1. The connecting bolt 7 will be inserted into the inside of another adjacent segment body 1 through the bolt channel formed by the communication of the first bolt hole 2 and the second bolt hole 3, and finally insert out from the second bolt hole 3 of another adjacent segment body 1. Install the washer 9 and the nut 8 at both ends of the connecting bolt 7 respectively, and tighten the nut 8 to complete the connection and fixing operation of the adjacent segment bodies 1. The sealing strip 4 between the adjacent segment bodies 1 can enhance the sealing performance of the connection position between the adjacent segment bodies 1 and avoid the phenomenon of water leakage and air leakage easily occurring between the segment bodies 1.

[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0044] Although embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tunnel segment connection structure, comprising a segment body (1), characterized in that: Two first bolt holes (2) are respectively provided on the two side surfaces of the segment body (1), four second bolt holes (3) are provided on the outer wall of the segment body (1), and two sealing strips (4) are provided between two adjacent segment bodies (1).

2. A tunnel segment connection structure according to claim 1, characterized in that: Sealing grooves (6) are respectively provided on two side surfaces of the segment body (1), and the sealing strips (4) are respectively embedded in adjacent sealing grooves (6).

3. A tunnel segment connection structure according to claim 1, characterized in that: The positions of the first bolt holes (2) respectively correspond to the positions of the second bolt holes (3), and the first bolt holes (2) are respectively connected to the second bolt holes (3).

4. A tunnel segment connection structure according to claim 1, characterized in that: The bolt through hole formed by connecting the first bolt hole (2) and the second bolt hole (3) is arc-shaped, and connecting bolts (7) are slidably inserted into the bolt through holes formed by connecting the first bolt hole (2) and the second bolt hole (3) of two adjacent segment bodies (1).

5. A tunnel segment connection structure according to claim 4, characterized in that: The connecting bolt (7) is arc-shaped, and the connecting bolt (7) is a segment bolt.

6. A tunnel segment connection structure according to claim 4, characterized in that: Both ends of the connecting bolt (7) are provided with threaded structures, and the connecting bolt (7) is threadably connected to two nuts (8) through the threaded structures at both ends.

7. A tunnel segment connection structure according to claim 6, characterized in that: Two washers (9) are slidably connected to the outer circumferential surface of the connecting bolt (7), and the washers (9) are respectively located between the nut (8) and the second bolt hole (3).

8. The tunnel segment connection structure according to claim 1, characterized in that: The outer wall of the segment body (1) is provided with four grooves (5), and the second bolt holes (3) are respectively located inside the grooves (5).

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