Tunnel portal protection structure

Abstract

The utility model discloses a tunnel portal protection structure, which relates to the technical field of tunnel portal protection, and comprises a tunnel portal, a reinforcing component is arranged in the tunnel portal, a protection component is arranged outside the tunnel portal, the reinforcing component comprises a partition plate, an inclined positioning plate is arranged at the top of the partition plate, and the inclined positioning plate is arranged on the outer side of the partition plate. Arc-shaped reinforcing steel bars are arranged in the middles of the inclined positioning plates, supporting rods are arranged at the bottoms of the partition plates, and stabilizing plates are arranged outside the supporting rods. According to the tunnel portal protection structure, the use strength of the tunnel portal is enhanced through the arranged reinforcing assembly, the use strength of the top of the tunnel portal is enhanced through the arranged inclined positioning plates and the arranged arc-shaped reinforcing steel bars, and the situation that the top of the tunnel portal is damaged due to falling of stones is prevented; and gaps between the inclined positioning plates and the arc-shaped reinforcing steel bars are filled with concrete, so that the use strength of the tunnel portal is improved while the environmental pollution caused by the concrete is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tunnel entrance protection technology, and in particular to tunnel entrance protection structures. Background Technology

[0002] A tunnel is an engineering structure buried underground, representing a form of human utilization of underground space. Tunnels can be categorized into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels. The structure of a tunnel comprises two parts: the main structure and auxiliary equipment. The main structure consists of the tunnel body and portals, while auxiliary equipment includes passing bays, fire-fighting facilities, emergency communication systems, and drainage systems. Longer tunnels also have specialized ventilation and lighting equipment.

[0003] During tunnel use, rocks are prone to falling. Existing tunnel entrance protection is inadequate, causing rocks to directly impact the tunnel entrance. Over time, this can damage the tunnel entrance and affect its service life. Therefore, a tunnel entrance protection structure is needed to solve this problem. Utility Model Content

[0004] The main purpose of this utility model is to provide a protective structure for tunnel entrances, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A tunnel entrance protection structure includes a tunnel entrance, wherein a reinforcing component is installed inside the tunnel entrance and a protective component is installed outside the tunnel entrance;

[0007] The reinforcing component includes a partition plate, an inclined positioning plate is provided on the top of the partition plate, an arc-shaped reinforcing steel bar is provided in the middle of the inclined positioning plate, a support rod is provided at the bottom of the partition plate, and a stabilizing plate is provided on the outside of the support rod.

[0008] The protective component includes a tough protective outer shell, inside which is a wear-resistant inner shell, and a rubber buffer pad is provided between the wear-resistant inner shell and the tough protective outer shell. A support spring and a support plate are provided on the side of the rubber buffer pad, and a filler rod is provided at the bottom of the support plate.

[0009] Preferably, the tunnel opening is hollow in the middle, and a partition plate is fixedly connected to the middle of the tunnel opening. There are two partition plates, which are symmetrically distributed on both sides of the tunnel opening, and the two ends of the partition plates are connected to the inner walls of the two ends of the tunnel opening.

[0010] Preferably, the bottom of the partition plate is bolted with a support rod, and there are multiple support rods, which are symmetrically distributed on both sides of the bottom of the tunnel opening. The end of the support rod away from the partition plate is connected to the bottom inner wall of the tunnel opening. A stabilizing plate is sleeved on the outside of the support rod, and there are multiple stabilizing plates, which are evenly distributed on both sides of the tunnel opening. The outer walls of the two sides of the stabilizing plate are fixedly connected to the inner wall of the tunnel opening, and the multiple stabilizing plates are all located below the two partition plates.

[0011] Preferably, an inclined positioning plate is provided at the top center of the tunnel opening, and there are multiple inclined positioning plates, which are evenly distributed at the top center of the inclined positioning plates. An arc-shaped reinforcing bar is inserted into the middle of the inclined positioning plate, and there are multiple arc-shaped reinforcing bars, which are arranged horizontally inside the tunnel opening. The two ends of the arc-shaped reinforcing bars are connected to two partition plates.

[0012] Preferably, a wear-resistant inner shell is fixedly connected to the outer wall of the tunnel opening, and the inner wall of the wear-resistant inner shell is tightly fitted to the outer wall of the tunnel opening. A tough protective outer shell is fixedly connected to the side of the wear-resistant inner shell away from the tunnel opening, and a buffer cavity is formed between the tough protective outer shell and the wear-resistant inner shell. A rubber buffer pad is installed on the inner wall of the tough protective outer shell by bolts, and the outer wall of the rubber buffer pad is in contact with the inner wall of the tough protective outer shell.

[0013] Preferably, a support spring is snapped onto the side of the rubber buffer pad away from the tough protective shell, and there are multiple support springs, which are evenly distributed between the rubber buffer pad and the wear-resistant inner shell. Two support plates are symmetrically fixedly connected to both sides of the wear-resistant inner shell, and the multiple support springs are all located above the support plates. A filling rod is installed at the bottom of the support plate by bolts, and the end of the filling rod away from the support plate is connected to the bottom inner wall of the buffer cavity.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The strength of the tunnel entrance is enhanced by setting up reinforcing components, and the strength of the top of the tunnel entrance is enhanced by setting up multiple inclined positioning plates and multiple arc-shaped reinforcing bars to prevent stones from falling and causing damage to the top of the tunnel entrance. The gap between the inclined positioning plates and the arc-shaped reinforcing bars is filled with concrete, which reduces concrete pollution to the environment while improving the strength of the tunnel entrance.

[0016] 2. The tunnel entrance is protected by the set protective components. The tough protective shell, rubber buffer pad and support spring are set to buffer the impact force of stones falling on the tough protective shell, prevent the stones from directly acting on the tunnel entrance and extend the service life of the tunnel entrance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall unfolded structure of the device of this utility model;

[0019] Figure 3 This is a structural schematic diagram of the reinforcing component of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the protective component of this utility model.

[0021] In the diagram: 1. Tunnel entrance; 2. Reinforcing component; 3. Separator plate; 4. Inclined positioning plate; 5. Arc-shaped reinforcing steel bar; 6. Support rod; 7. Stabilizing plate; 8. Protective component; 9. High-strength protective outer shell; 10. Buffer cavity; 11. Wear-resistant inner shell; 12. Rubber buffer pad; 13. Support plate; 14. Support spring; 15. Filling rod. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 , Figure 2 , Figure 3 As shown, the tunnel entrance protection structure includes a tunnel entrance 1, a reinforcing component 2 is installed inside the tunnel entrance 1, and a protective component 8 is installed outside the tunnel entrance 1.

[0024] The reinforcing component 2 includes a partition plate 3. An inclined positioning plate 4 is installed at the top of the partition plate 3, and an arc-shaped reinforcing steel bar 5 is installed in the middle of the inclined positioning plate 4. A support rod 6 is installed at the bottom of the partition plate 3, and a stabilizing plate 7 is installed outside the support rod 6. The tunnel opening 1 is hollow in the middle, and the partition plate 3 is fixedly connected to the middle of the interior of the tunnel opening 1. There are two partition plates 3, symmetrically distributed on both sides of the tunnel opening 1. The two ends of the partition plate 3 are connected to the inner walls of both ends of the tunnel opening 1. Support rods 6 are bolted to the bottom of the partition plate 3. There are multiple support rods 6, symmetrically distributed on both sides of the bottom of the tunnel opening 1. The end of the support rod 6 away from the partition plate 3 is connected to the bottom inner wall of the tunnel opening 1. Stabilizing plates 7 are sleeved on the outside of the support rod 6. There are multiple stabilizing plates 7, evenly distributed on both sides of the interior of the tunnel opening 1. The outer walls of the stabilizing plates 7 are... The tunnel entrance 1 is fixedly connected to the inner wall, and multiple stabilizing plates 7 are located below two partition plates 3. An inclined positioning plate 4 is set in the middle of the top of the tunnel entrance 1, and there are multiple inclined positioning plates 4, which are evenly distributed in the middle of the top of the inclined positioning plates 4. An arc-shaped reinforcing steel bar 5 is inserted in the middle of the inclined positioning plate 4, and there are multiple arc-shaped reinforcing steel bars 5, which are horizontally set inside the tunnel entrance 1. The two ends of the arc-shaped reinforcing steel bars 5 are connected to the two partition plates 3. The strength of the tunnel entrance 1 is enhanced by the set reinforcing components 2. The strength of the top of the tunnel entrance 1 is enhanced by the set multiple inclined positioning plates 4 and multiple arc-shaped reinforcing steel bars 5, preventing stones from falling and causing damage to the top of the tunnel entrance 1. The gap between the inclined positioning plate 4 and the arc-shaped reinforcing steel bars 5 is filled with concrete, which reduces the environmental pollution of concrete while improving the strength of the tunnel entrance 1.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the protective component 8 includes a tough protective outer shell 9, inside which a wear-resistant inner shell 11 is disposed, and a rubber buffer pad 12 is disposed between the wear-resistant inner shell 11 and the tough protective outer shell 9. A support spring 14 is disposed on the side of the rubber buffer pad 12, and a support plate 13 is disposed on the side of the support plate 13. A filling rod 15 is disposed at the bottom of the support plate 13. The wear-resistant inner shell 11 is fixedly connected to the outer wall of the tunnel opening 1, and the inner wall of the wear-resistant inner shell 11 is tightly fitted to the outer wall of the tunnel opening 1. The tough protective outer shell 9 is fixedly connected to the side of the wear-resistant inner shell 11 away from the tunnel opening 1, and a buffer cavity 10 is formed between the tough protective outer shell 9 and the wear-resistant inner shell 11. The rubber buffer pad 12 is installed on the inner wall of the tough protective outer shell 9 by bolts, and the outer wall of the rubber buffer pad 12 is in contact with the inner wall of the tough protective outer shell 9. A support spring 14 is snapped onto the side of the rubber buffer pad 12 away from the tough protective shell 9. There are multiple support springs 14, which are evenly distributed between the rubber buffer pad 12 and the wear-resistant inner shell 11. Two support plates 13 are symmetrically fixed to both sides of the wear-resistant inner shell 11, and the multiple support springs 14 are all located above the support plates 13. A filling rod 15 is bolted to the bottom of the support plate 13, and the end of the filling rod 15 away from the support plate 13 is connected to the bottom inner wall of the buffer cavity 10. The protective components 8 are used to protect the tunnel entrance 1. The tough protective shell 9, the rubber buffer pad 12 and the support springs 14 are used to buffer the impact force of stones falling on the tough protective shell 9, prevent the stones from directly impacting the tunnel entrance 1 and extend the service life of the tunnel entrance 1.

[0026] It should be noted that this utility model is a tunnel entrance protection structure. In use, multiple arc-shaped reinforcing bars 5 are sequentially inserted into the middle of multiple inclined positioning plates 4, connecting the arc-shaped reinforcing bars 5 to the inclined positioning plates 4. The structure composed of the inclined positioning plates 4 and the arc-shaped reinforcing bars 5 is installed on the top of the tunnel entrance 1. Concrete is injected into the gap between the inclined positioning plates 4 and the arc-shaped reinforcing bars 5, thereby achieving the positioning connection between the inclined positioning plates 4 and the arc-shaped reinforcing bars 5, and simultaneously improving the strength of the tunnel entrance 1. Simultaneously, a support rod 6 is inserted into the middle of a stabilizing plate 7, and the combined structure of the support rod 6 and the stabilizing plate 7 is installed... Installed at the bottom of tunnel entrance 1, concrete is also injected into the gap between support rod 6 and stabilizing plate 7 to further improve the strength of tunnel entrance 1. When rocks fall, they land on the tough protective shell 9. The tough protective shell 9 and wear-resistant inner shell 11 isolate the rocks from tunnel entrance 1, reducing direct contact between the rocks and tunnel entrance 1 and extending the service life of tunnel entrance 1. At the same time, a rubber buffer pad 12 and a support spring 14 are installed between the tough protective shell 9 and the wear-resistant inner shell 11 to effectively buffer the impact force and improve the protective effect.

[0027] 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 tunnel portal protection structure comprising a tunnel portal (1), characterized in that: The tunnel opening (1) is equipped with a reinforcing component (2) inside and a protective component (8) is equipped on the outside of the tunnel opening (1); The reinforcing component (2) includes a partition plate (3), an inclined positioning plate (4) is provided on the top of the partition plate (3), and an arc-shaped reinforcing steel bar (5) is provided in the middle of the inclined positioning plate (4). A support rod (6) is provided at the bottom of the partition plate (3), and a stabilizing plate (7) is provided on the outside of the support rod (6). The protective component (8) includes a tough protective shell (9), inside which a wear-resistant inner shell (11) is provided, and a rubber buffer pad (12) is provided between the wear-resistant inner shell (11) and the tough protective shell (9). A support spring (14) and a support plate (13) are provided on the side of the rubber buffer pad (12), and a filling rod (15) is provided at the bottom of the support plate (13).

2. A tunnel portal protection structure according to claim 1, characterised in that: The tunnel opening (1) is hollow in the middle, and a partition plate (3) is fixedly connected in the middle of the tunnel opening (1). There are two partition plates (3), which are symmetrically distributed on the middle of the two sides of the tunnel opening (1), and the two ends of the partition plates (3) are connected to the inner walls of the two ends of the tunnel opening (1).

3. A tunnel portal protection structure according to claim 2, characterised in that: The bottom of the partition plate (3) is bolted with a support rod (6), and there are multiple support rods (6), which are symmetrically distributed on both sides of the bottom of the tunnel opening (1). The end of the support rod (6) away from the partition plate (3) is connected to the bottom inner wall of the tunnel opening (1). The support rod (6) is fitted with a stabilizing plate (7), and there are multiple stabilizing plates (7), which are evenly distributed on both sides of the tunnel opening (1). The outer walls of the two sides of the stabilizing plate (7) are fixedly connected to the inner wall of the tunnel opening (1), and the multiple stabilizing plates (7) are all located below the two partition plates (3).

4. The tunnel portal protection structure of claim 2, wherein: An inclined positioning plate (4) is provided in the middle of the top of the tunnel opening (1), and there are multiple inclined positioning plates (4) evenly distributed in the middle of the top of the inclined positioning plates (4). An arc-shaped reinforcing steel bar (5) is inserted in the middle of the inclined positioning plate (4), and there are multiple arc-shaped reinforcing steel bars (5) arranged horizontally inside the tunnel opening (1). The two ends of the arc-shaped reinforcing steel bars (5) are connected to two partition plates (3).

5. The tunnel portal protection structure of claim 1, wherein: A wear-resistant inner shell (11) is fixedly connected to the outer wall of the tunnel opening (1), and the inner wall of the wear-resistant inner shell (11) is tightly fitted to the outer wall of the tunnel opening (1). A tough protective outer shell (9) is fixedly connected to the side of the wear-resistant inner shell (11) away from the tunnel opening (1), and a buffer cavity (10) is formed between the tough protective outer shell (9) and the wear-resistant inner shell (11). A rubber buffer pad (12) is installed on the inner wall of the tough protective outer shell (9) by bolts, and the outer wall of the rubber buffer pad (12) is in contact with the inner wall of the tough protective outer shell (9).

6. A tunnel portal protection structure according to claim 5, characterised in that: The rubber buffer pad (12) is attached to a support spring (14) on the side away from the tough protective shell (9), and there are multiple support springs (14) that are evenly distributed between the rubber buffer pad (12) and the wear-resistant inner shell (11). Two support plates (13) are symmetrically fixedly connected to both sides of the wear-resistant inner shell (11), and multiple support springs (14) are located above the support plates (13). A filling rod (15) is installed at the bottom of the support plate (13) by bolts, and the end of the filling rod (15) away from the support plate (13) is connected to the bottom inner wall of the buffer cavity (10).

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