Deformable anti-seismic device suitable for tunnel structure

Abstract

The invention relates to the field of anti-seismic devices, in particular to a deformable anti-seismic device suitable for a tunnel structure. The anti-seismic structure comprises a base and an inner arch wall arranged on the base, an outer arch wall located on the outer side of the inner arch wall is further arranged on the base, and a plurality of anti-seismic mechanisms are arranged between the outer arch wall and the inner arch wall; the outer arch wall is composed of a plurality of outer arc-shaped units arranged at equal intervals, the inner arch wall is composed of a plurality of inner arc-shaped units arranged at equal intervals, anti-seismic fillers are arranged between the adjacent outer arc-shaped units and between the adjacent inner arc-shaped units, and the two ends of the bottoms of the outer arc-shaped units are connected with the base through outer anti-seismic buttresses. The two ends of the bottom of the inner arc-shaped unit are connected with the base through inner anti-seismic buttresses. During use, gaps between the outer arc-shaped units and gaps between the inner arc-shaped units are connected through anti-seismic filling, so that the inner arch wall and the outer arch wall can adapt to vibration transmission and absorption at various angles, the inner arch wall and the outer arch wall are connected through the anti-seismic buttresses, and the absorption effect on complex vibration is further improved.

Description

Technical Field

[0001] This invention relates to the field of earthquake-resistant devices, and more particularly to a deformable earthquake-resistant device suitable for tunnel structures. Background Technology

[0002] Tunnels are susceptible to earthquakes during their operation, which may cause structural damage, collapses, water seepage, and other dangers, directly threatening people's lives and property. Seismic design can effectively reduce the impact of disasters.

[0003] Chinese Patent CN215890036U discloses a tunnel seismic resistance device, comprising a base plate, a support plate, and the seismic resistance device itself. The support plate is fixedly connected to the surface of the base plate, and a support plate is fixedly connected to the surface of the support plate. The seismic resistance device is disposed on the surface of the base plate and includes a positioning column fixedly connected to the surface of the base plate. A load-bearing plate is fixedly connected to the surface of the positioning column, and a positioning groove is formed on the surface of the load-bearing plate. A buffer spring is fixedly connected inside the positioning groove. A positioning frame A is fixedly connected to the surface of the load-bearing plate, and a stabilizing frame is fixedly connected to the inner wall of the positioning frame A. A stop block is fixedly connected to the side of the buffer spring away from the load-bearing plate, and a positioning frame B is fixedly connected to the inner wall of the stop block. By setting up the seismic resistance device, the stability of the equipment is increased, the pressure on the tunnel is effectively buffered, the seismic performance of the tunnel is improved, the probability of tunnel collapse is reduced, and the service life of the tunnel is increased.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the seismic resistance is poor in the length direction. In addition, the seismic resistance is poor in other angles because springs have good resistance to stretching in the length direction. When vibrations are transmitted at complex angles, the seismic resistance is difficult to guarantee and the springs are easily damaged. Summary of the Invention

[0005] The purpose of this invention is to address the problems in the prior art where the seismic resistance along the length of tunnels is poor and the seismic resistance of springs is insufficient to cope with complex vibration conditions, and to propose a deformable seismic-resistant device suitable for tunnel structures.

[0006] The technical solution of the present invention is as follows: A deformable seismic-resistant device suitable for tunnel structures includes a base and an inner arch wall disposed on the base. An outer arch wall located outside the inner arch wall is also disposed on the base. Multiple seismic-resistant mechanisms are disposed between the outer arch wall and the inner arch wall. The outer arch wall is composed of multiple equidistantly arranged outer arc-shaped units, and the inner arch wall is composed of multiple equidistantly arranged inner arc-shaped units. Seismic-resistant filling is disposed between adjacent outer arc-shaped units and between adjacent inner arc-shaped units. The bottom ends of the outer arc-shaped units are connected to the base through outer seismic-resistant supports, and the bottom ends of the inner arc-shaped units are connected to the base through inner seismic-resistant supports.

[0007] Preferably, the seismic filler is an elastic body with an overall arc-shaped plate structure, and the length of the seismic filler in the tunnel length direction is one-fifth of the length of the outer arc-shaped unit or the inner arc-shaped unit.

[0008] Preferably, the external and internal seismic piers are high-damping seismic piers, which add a sliding high-damping steel layer on the basis of rubber bearings to absorb vibration energy through shear deformation.

[0009] Preferably, the seismic-resistant mechanism includes a box body disposed on the outer wall of the inner arc-shaped unit and seismic-resistant supports disposed on the box body, with the ends of the seismic-resistant supports connected to the inner wall of the outer arch wall.

[0010] Preferably, a slide rail is installed on the inner wall of the box along the length of the tunnel, and a sliding plate is installed at the end of the seismic support near the inner arch wall, with the sliding plate and the slide rail working together to slide.

[0011] Preferably, the box opening has outward-flared edges on both sides, and the slide plate is connected to the outward-flared edges.

[0012] Preferably, a connecting plate is provided at the end of the seismic pier, the connecting plate is attached to the inner wall of the outer arch, multiple connecting holes are provided on the connecting plate, and the connecting plate and the outer arch are connected by multiple bolts.

[0013] Preferably, multiple operating ports are provided on the inner arch wall. The operating ports are located on the inner arc-shaped unit and the seismic filling, with one operating port corresponding to one seismic mechanism. The inner arch wall is also provided with a sealing mechanism to close the operating ports.

[0014] Compared with existing technologies, this invention has the following beneficial technical effects: the gaps between the outer and inner arc-shaped units are connected by seismic-resistant filling, enabling the inner and outer arch walls to adapt to vibration transmission and absorption at various angles. Furthermore, the seismic-resistant supports connect the inner and outer arch walls, and due to their excellent shear resistance, the absorption effect on complex vibrations is further improved. In addition, an operating port and a sealing plate are provided; removing the sealing plate allows for disassembly, assembly, and subsequent maintenance of the seismic mechanism. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0016] Figure 2 for Figure 1 Exploded view;

[0017] Figure 3 for Figure 2 Partial structural diagram;

[0018] Figure 4 for Figure 3 A structural diagram from another perspective;

[0019] Figure 5This is a schematic diagram of the inner arch wall.

[0020] Reference numerals: 1. Base; 2. Outer arch wall; 3. Inner arch wall; 4. Seismic resisting mechanism; 5. Outer arc-shaped unit; 6. Seismic resisting filling; 7. Inner arc-shaped unit; 8. Outer seismic resisting pier; 9. Inner seismic resisting pier; 10. Operating port; 11. Mounting groove; 12. Box body; 13. Slide plate; 14. Fixing hole; 15. Seismic resisting pier; 16. Connecting plate; 17. Connecting hole; 18. Sealing plate; 19. Threaded hole; 20. Outer flange. Detailed Implementation

[0021] Example 1, as Figures 1-2 As shown, the present invention proposes a deformable seismic-resistant device suitable for tunnel structures, comprising a base 1 and an inner arch wall 3 disposed on the base 1. An outer arch wall 2 located outside the inner arch wall 3 is also disposed on the base 1. Multiple seismic-resistant mechanisms 4 are disposed between the outer arch wall 2 and the inner arch wall 3. The outer arch wall 2 is composed of multiple equidistantly arranged outer arc-shaped units 5, and the inner arch wall 3 is composed of multiple equidistantly arranged inner arc-shaped units 7. Seismic-resistant filling 6 is disposed between adjacent outer arc-shaped units 5 and between adjacent inner arc-shaped units 7. The bottom two ends are connected to the base 1 through the outer seismic support 8, and the bottom two ends of the inner arc-shaped unit 7 are connected to the base 1 through the inner seismic support 9. Due to the elastic deformation capacity of the inner seismic support 9, the outer seismic support 8 and the seismic filling 6, when vibration occurs, the vibration can be absorbed through the elastic deformation of the inner seismic support 9, the outer seismic support 8 and the seismic filling 6, reducing the transmission of vibration. In addition, the inner seismic support 9, the outer seismic support 8 and the seismic filling 6 have strong shear resistance, and the deformation is not affected by the direction of vibration, resulting in better seismic resistance.

[0022] Furthermore, the seismic filler 6 is an elastomer, such as rubber vibration isolation material, made of natural rubber or lead-free natural rubber, bonded together with multiple layers of steel plates through vulcanization to form an elastomer, possessing high deformation capacity, low stiffness, and excellent weather resistance. Alternatively, it can be a high-damping seismic material, adding a sliding high-damping steel layer to the rubber material, absorbing seismic energy through shear deformation to improve damping performance and enhance stability. It can also be a composite material, utilizing fiber-reinforced plastics to improve seismic resistance. The overall structure is an arc-shaped plate. The length of the seismic filler 6 in the tunnel length direction is one-fifth of the length of the outer arc-shaped unit 5 or the inner arc-shaped unit 7. The seismic filler 6 is fixedly connected to the outer arc-shaped unit 5 or the inner arc-shaped unit 7. The outer seismic pier 8 and the inner seismic pier 9 are high-damping seismic piers, adding a sliding high-damping steel layer to the rubber bearing, absorbing vibration energy through shear deformation to improve damping performance and enhance the stability of the inner arch wall 3 and the outer arch wall 2.

[0023] Example 2, as Figures 2-3As shown, the present invention proposes a deformable seismic-resistant device suitable for tunnel structures. Compared with Embodiment 1, this embodiment details the structure of the seismic-resistant mechanism 4.

[0024] The seismic-resistant mechanism 4 includes a box 12 mounted on the outer wall of the inner arc-shaped unit 7 and seismic-resistant supports 15 mounted on the box 12. The ends of the seismic-resistant supports 15 are connected to the inner wall of the outer arch wall 2. A slide rail is installed on the inner wall of the box 12 along the tunnel length direction. A sliding plate 13 is installed at the end of the seismic-resistant supports 15 near the inner arch wall 3. The sliding plate 13 slides in cooperation with the slide rail, facilitating the quick installation of the seismic-resistant supports 15 into place.

[0025] Example 3, as Figures 3-5 As shown, the present invention proposes a deformable seismic-resistant device suitable for tunnel structures. Compared with Embodiment 2, this embodiment provides a supplementary description of the detailed structure of the seismic-resistant mechanism 4.

[0026] To facilitate the fixing of the slide plate 13, outward flanges 20 are provided on both sides of the opening of the box body 12. The slide plate 13 is connected to the outward flanges 20. Specifically, the slide plate 13 has a T-shaped structure, with one end sliding into the box body 12 and the other end pressing against the two outward flanges 20. The other end is provided with fixing holes 14. The slide plate 13 and the outward flanges 20 are connected by multiple bolts. A connecting plate 16 is provided at the end of the seismic support pier 15. The connecting plate 16 fits against the inner wall of the outer arch wall 2. The connecting plate 16 is provided with multiple connecting holes 17. The connecting plate 16 and the outer arch wall 2 are connected by multiple bolts. To facilitate the installation and subsequent maintenance of the seismic mechanism 4, multiple operating ports 10 are provided on the inner arch wall 3. The operating port 10 is located on the inner arc-shaped unit 7 and the seismic filling 6. One operating port 10 corresponds to one seismic mechanism 4. The inner arch wall 3 is also provided with a sealing mechanism to close the operating port 10. Specifically, the sealing mechanism includes a sealing plate 18 and a fixing plate provided on both sides of the sealing plate 18. The fixing plate is provided with multiple threaded holes 19. The operating port 10 is provided with mounting grooves 11 on both sides for the fixing plate to be inserted. The fixing plate and the groove wall of the mounting groove 11 are connected by multiple bolts.

[0027] In summary, during use, the gaps between the outer arc-shaped unit 5 and the inner arc-shaped unit 7 are connected by the seismic filler 6, allowing the inner arch wall 3 and the outer arch wall 2 to adapt to vibration transmission and absorption at various angles. Furthermore, the seismic support 15 connects the inner arch wall 3 and the outer arch wall 2, and its excellent shear resistance further enhances the absorption effect against complex vibrations. Additionally, an operating port 10 and a sealing plate 18 are provided. Removing the sealing plate 18 allows for disassembly, assembly, and subsequent maintenance of the seismic mechanism 4. It should be noted that, to avoid compromising the seismic resistance of the inner arch wall 3, the sealing plate 18 can be made using the same material as the inner seismic support 9.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A deformable anti-seismic device suitable for a tunnel structure, comprising a base (1) and an inner arch wall (3) arranged on the base (1), and an outer arch wall (2) arranged outside the inner arch wall (3) on the base (1), and a plurality of anti-seismic mechanisms (4) arranged between the outer arch wall (2) and the inner arch wall (3); characterized in that, The outer arch wall (2) is composed of a plurality of equidistantly arranged outer arc units (5), the inner arch wall (3) is composed of a plurality of equidistantly arranged inner arc units (7), the anti-seismic fillings (6) are arranged between adjacent outer arc units (5) and between adjacent inner arc units (7), the outer arc units (5) are connected with the base (1) through outer anti-seismic piers (8) at both ends of the bottom, and the inner arc units (7) are connected with the base (1) through inner anti-seismic piers (9) at both ends of the bottom.

2. The deformable seismic device suitable for use in a tunnel structure according to claim 1, characterized in that, The anti-seismic filling (6) is an elastic body and has an overall arc-shaped plate structure, and the length of the anti-seismic filling (6) in the length direction of the tunnel is one fifth of the length of the outer arc unit (5) or the inner arc unit (7).

3. The deformable seismic device suitable for use in a tunnel structure according to claim 1, wherein, The outer anti-seismic pier (8) and the inner anti-seismic pier (9) are high-damping anti-seismic piers, a sliding high-damping steel layer is added on the basis of a rubber support, and vibration energy is absorbed through shear deformation.

4. The deformable seismic device suitable for use in a tunnel structure according to claim 1, wherein, The anti-seismic mechanism (4) comprises a box body (12) arranged on the outer wall of the inner arc unit (7) and an anti-seismic pier (15) arranged on the box body (12), and the end of the anti-seismic pier (15) is connected with the inner wall of the outer arch wall (2).

5. The deformable seismic device suitable for use in a tunnel structure according to claim 4, wherein, A sliding rail is arranged on the inner wall of the box body (12) in the length direction of the tunnel, the anti-seismic pier (15) is provided with a sliding plate (13) at one end close to the inner arch wall (3), and the sliding plate (13) slides in cooperation with the sliding rail.

6. The deformable seismic device suitable for use in a tunnel structure according to claim 5, wherein, Flanging (20) is arranged on both sides of the opening of the box body (12), and the sliding plate (13) is connected with the flanging (20).

7. The deformable seismic device suitable for use in a tunnel structure according to claim 4, wherein, The end of the anti-seismic pier (15) is provided with a connecting plate (16), the connecting plate (16) is attached to the inner wall of the outer arch wall (2), a plurality of connecting holes (17) are arranged on the connecting plate (16), and the connecting plate (16) and the outer arch wall (2) are connected through a plurality of bolts.

8. The deformable seismic device suitable for use in a tunnel structure according to claim 1 or 4, characterized in that, A plurality of operation openings (10) are arranged on the inner arch wall (3). The operation openings (10) are located on the inner arc units (7) and the anti-seismic fillings (6), one operation opening (10) corresponds to one anti-seismic mechanism (4), and the inner arch wall (3) is further provided with a sealing mechanism for sealing the operation openings (10).

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