An explosion-proof shock absorbing device

Abstract

The application discloses an anti-explosion and shock absorption device, and relates to the anti-explosion and shock absorption technical field of tunnel engineering.The device comprises a structural shell which is used for being connected with the outer side wall of a tunnel structure, and the structural shell is sequentially provided with a third accommodating cavity, a second accommodating cavity and a first accommodating cavity from the side close to the tunnel structure; an anti-explosion and shock absorption filling layer which comprises a load absorption filling layer, a load resistance filling layer and a load release filling layer, and the load absorption filling layer, the load resistance filling layer and the load release filling layer are arranged in the third accommodating cavity, the second accommodating cavity and the first accommodating cavity respectively, and the anti-explosion and shock absorption filling layer is used for bearing the impact load on the tunnel structure. The impact load on the tunnel structure is absorbed or reduced through the anti-explosion and shock absorption filling layer, the problem that the influence of the explosion load is difficult to reverse and the service life of the open section and the light transition section is possibly shortened and a safety hazard is caused is solved by the way that the structure of the open section and the light transition section is strengthened to reduce the influence of the explosion load in the prior art.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof and vibration-damping technology in tunnel engineering, specifically to an explosion-proof and vibration-damping device. Background Technology

[0002] Tunnels, as underground transportation networks, are undoubtedly a good solution to surface traffic congestion. However, municipal tunnels inevitably pass through high-risk areas such as chemical industrial parks. Therefore, explosion-proof and vibration-damping design is a necessary factor to consider when designing such tunnels. For buried sections of tunnels, the soil layer above the structure weakens the impact of an explosion, reducing the impact on the tunnel structure. However, in open sections and smooth transition sections, the structure is exposed on the outside, and the impact of explosion loads on this part of the structure is enormous.

[0003] In existing technologies, the impact of explosive loads on the open section and light transition section is reduced by strengthening the structure. However, the impact of explosive loads on this part of the structure is difficult to reverse, which may shorten the service life of the open section and light transition section and create safety hazards. Summary of the Invention

[0004] In view of the defects in the existing technology, the purpose of the present invention is to provide an explosion-proof shock absorption device that can solve the problem of reducing the impact of explosion load on the structure by strengthening the open section and the light transition section in the existing technology. However, the impact of explosion load on this part of the structure is difficult to reverse, which may shorten the service life of the open section and the light transition section and create safety hazards.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] This application provides an explosion-proof shock absorption device, which includes:

[0007] A structural shell for connecting to the outer wall of the tunnel structure, wherein the structural shell is provided with a third receiving cavity, a second receiving cavity and a first receiving cavity in sequence from the side closest to the tunnel structure;

[0008] The explosion-proof and shock-absorbing filling layer includes a load-absorbing filling layer, a load-resisting filling layer, and a load-releasing filling layer. The load-absorbing filling layer, the load-resisting filling layer, and the load-releasing filling layer are respectively disposed in the third accommodating cavity, the second accommodating cavity, and the first accommodating cavity. The explosion-proof and shock-absorbing filling layer is used to withstand the impact load on the tunnel structure.

[0009] Based on the above technical solutions,

[0010] In some alternative solutions, the first receiving cavity is provided with multiple pressure relief ports on the side away from the tunnel structure, and each pressure relief port is provided with a pressure relief cover. The pressure relief cover is placed on the pressure relief port. When a preset pressure value is reached, the pressure relief cover is opened, and the load release filling layer is ejected from the pressure relief port.

[0011] In some alternative embodiments, the load-absorbing filling layer comprises:

[0012] A filling material is disposed within the third receiving cavity;

[0013] An elastic compression component is disposed within the filler material to cooperate with the filler material in deforming and absorbing loads.

[0014] In some alternative embodiments, the elastic compression assembly includes a plurality of spring groups spaced apart in a vertical direction, the spring groups including a plurality of springs spaced apart in a horizontal direction, the springs being arranged along the arrangement direction of the third receiving cavity, the second receiving cavity and the first receiving cavity.

[0015] In some alternative solutions, the load release filling layer is made of granular material, the load resistance filling layer is made of foamed concrete, and the filling material is made of polymer damping material.

[0016] In some alternative solutions, a fourth cavity is provided on the side of the third cavity away from the second cavity. The fourth cavity contains a tunnel protection filling layer made of foamed concrete that is deformable.

[0017] In some alternative solutions, the first accommodating cavity is divided into an explosion-proof filling area and an impact-resistant filling area, wherein the explosion-proof filling area is filled with particulate material and the impact-resistant filling area is filled with impact-resistant material.

[0018] In some alternative solutions, the side of the second receiving cavity closest to the first receiving cavity is an arched surface, and the side of the first receiving cavity connected to the second receiving cavity is a concave surface that mates with the arched surface.

[0019] In some alternative solutions, the structural housing includes a third housing, a second housing, and a first housing, with the third receiving cavity, the second receiving cavity, and the first receiving cavity correspondingly disposed within the third housing, the second housing, and the first housing.

[0020] In some alternative designs, the side of the first housing away from the second housing is made of corrugated steel sheet.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] When using this explosion-proof vibration damping device, load-absorbing filling layers, load-resisting filling layers, and load-releasing filling layers are respectively installed in the third, second, and first receiving cavities within the structural shell, connecting the structural shell to the outer wall of the tunnel structure. By arranging explosion-proof vibration damping filling layers on the outer wall of the tunnel structure to withstand impact loads, the impact loads on the tunnel structure are absorbed or reduced. This solves the problem of existing technologies that rely on reinforcing the open sections and light transition sections to reduce the impact of explosive loads on these parts of the structure, but the impact of explosive loads on these parts is difficult to reverse, potentially shortening the service life of the open sections and light transition sections and creating safety hazards. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of an embodiment of the explosion-proof shock absorption device of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the explosion-proof and shock-absorbing filling layer in an embodiment of the explosion-proof and shock-absorbing device of the present invention;

[0026] Figure 3 This is a front view of the first housing in an embodiment of the explosion-proof shock absorption device of the present invention.

[0027] In the diagram: 1. Structural shell; 11. First shell; 111. Pressure relief port; 112. Pressure relief cover; 113. Corrugated steel plate; 2. Tunnel structure; 3. Explosion-proof and shock-absorbing filling layer; 31. Load release filling layer; 32. Load resistance filling layer; 33. Load absorption filling layer; 331. Elastic compression component; 332. Filling material; 34. Tunnel protection filling layer; 35. Collision-resistant material. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] The following detailed description of an embodiment of the explosion-proof shock absorption device of the present invention, in conjunction with the accompanying drawings, provides further insight.

[0030] like Figure 1 and Figure 2 As shown, this application provides an explosion-proof shock-absorbing device, which includes a structural shell 1 and an explosion-proof shock-absorbing filling layer 3. The structural shell 1 is used to connect with the outer wall of the tunnel structure 2. The structural shell 1 is provided with a third receiving cavity, a second receiving cavity, and a first receiving cavity in sequence from the side closest to the tunnel structure 2. The explosion-proof shock-absorbing filling layer 3 includes a load-absorbing filling layer 33, a load-resisting filling layer 32, and a load-releasing filling layer 31. The load-absorbing filling layer 33, the load-resisting filling layer 32, and the load-releasing filling layer 31 are respectively disposed in the third receiving cavity, the second receiving cavity, and the first receiving cavity. The explosion-proof shock-absorbing filling layer 3 is used to withstand the impact load on the tunnel structure 2.

[0031] When using this explosion-proof vibration damping device, the load-absorbing filling layer 33, the load-resistance filling layer 32, and the load-releasing filling layer 31 are respectively installed in the third receiving cavity, the second receiving cavity, and the first receiving cavity in the structural shell 1, connecting the structural shell 1 to the outer wall of the tunnel structure 2. Because the explosion-proof vibration damping filling layer 3 is arranged on the outer wall of the tunnel structure 2 to withstand the impact load on the tunnel structure 2, the impact load on the tunnel structure 2 is absorbed or reduced through the explosion-proof vibration damping filling layer 3. This solves the problem of using the method of reinforcing the open section and the light transition section to reduce the impact of explosive loads on these parts of the structure in the prior art. However, the impact of explosive loads on these parts of the structure is difficult to reverse, and there is a possibility of shortening the service life of the open section and the light transition section, creating safety hazards.

[0032] In this example, the thickness of the explosion-proof and shock-absorbing filling layer 3 is greater than 50cm, and the outer shell 1 is connected to the tunnel structure 2 by bolts.

[0033] like Figures 1-3 As shown, in some optional embodiments, the first receiving cavity is provided with a plurality of pressure relief ports 111 on the side away from the tunnel structure 2. Each pressure relief port 111 is provided with a pressure relief cover 112. The pressure relief cover 112 covers the pressure relief port 111. When the preset pressure value is reached, the pressure relief cover 112 opens and the load release filling layer 31 is ejected from the pressure relief port 111.

[0034] In this embodiment, a plurality of pressure relief ports 111 are provided on the side of the first receiving cavity away from the tunnel structure 2. A pressure relief cover 112 is placed on the pressure relief port 111. When the preset pressure value is reached, the pressure relief cover 112 is opened, and the load release filling layer 31 is ejected from the pressure relief port 111 to release the absorbed impact load and weaken the load transmitted to the load resistance filling layer 32.

[0035] In this example, the diameter of the pressure relief port 111 is greater than 50cm. Multiple pressure relief ports 111 are arranged in two rows, one above the other. The horizontal spacing between adjacent pressure relief ports 111 in the same row is 40cm, and the vertical spacing between adjacent pressure relief ports 111 is 0.5h, where h is the height of the tunnel structure 2 sidewall above the ground. The upper row of pressure relief ports 111 is 60cm from the top surface of the tunnel structure 2 sidewall. The pressure relief cover 112 is controlled by a pressure sensor; it opens when a preset pressure value is reached.

[0036] like Figure 2 As shown, in some optional embodiments, the load-absorbing filler layer 33 includes:

[0037] Filling material 332 is disposed within the third receiving cavity;

[0038] An elastic compression component 331 is disposed within the filler material 332 and is used to absorb loads by deforming in conjunction with the filler material 332.

[0039] In this embodiment, the structure of the load-absorbing filling layer 33 is specifically described. The load-absorbing filling layer 33 includes a filling material 332 and an elastic compression component 331. The filling material 332 is disposed in the third receiving cavity, and the elastic compression component 331 is disposed in the filling material 332. It is used to cooperate with the filling material 332 to deform and absorb the load, further absorb the load, and prevent it from affecting the structure of the tunnel structure 2.

[0040] In this example, the elastic compression component 331 can be a damped support such as a lead core support or a seismic isolation support, or it can be a damped component such as a spring or a compression damper.

[0041] like Figure 2 As shown, in some optional embodiments, the elastic compression assembly 331 includes a plurality of spring groups spaced apart in the vertical direction, the spring groups including a plurality of springs spaced apart in the horizontal direction, and the springs are arranged along the arrangement direction of the third receiving cavity, the second receiving cavity and the first receiving cavity.

[0042] In this embodiment, the specific structure of the elastic compression component 331 is described. The elastic compression component 331 includes a plurality of spring groups spaced apart in the vertical direction, wherein the spring groups include a plurality of springs spaced apart in the horizontal direction, and the springs are arranged along the arrangement direction of the third receiving cavity, the second receiving cavity and the first receiving cavity, thereby improving the load absorption capacity of the elastic compression component 331.

[0043] In some optional embodiments, the load release filling layer 31 is made of granular material, the load resistance filling layer 32 is made of foamed concrete, and the filling material 332 is made of polymer damping material.

[0044] In this embodiment, the load release filling layer 31 is made of granular material. The characteristic of granular material is that it can undergo a certain volume shrinkage after being subjected to pressure. Because the particles are relatively fine, some of the impact load can be converted into internal energy through friction between the particles. The load resistance filling layer 32 is made of foamed concrete, which has a good absorption and dispersion effect on impact load. The filling material 332 is made of polymer damping material, which can further absorb impact load.

[0045] In this example, the granular material is dry fine sand, and the polymer damping material is rubber or silicone.

[0046] like Figure 2 As shown, in some optional embodiments, a fourth cavity is provided on the side of the third cavity away from the second cavity. The fourth cavity is provided with a tunnel protection filling layer 34, which is made of foamed concrete and is deformable.

[0047] In this embodiment, a fourth cavity is provided on the side of the third cavity away from the second cavity. A tunnel protection filling layer 34 is provided in the fourth cavity. The tunnel protection filling layer 34 is made of foamed concrete and can deform. It can absorb the remaining load to a large extent and undergo a certain deformation, thereby reducing the load transmitted to the tunnel structure 2 and protecting the safety of the tunnel structure 2.

[0048] In this example, the thickness of the tunnel protective filling layer 34 is greater than 15cm.

[0049] like Figure 2 As shown, in some optional embodiments, the first receiving cavity is divided into an explosion-proof filling area and an anti-collision filling area, the explosion-proof filling area is filled with particulate material, and the anti-collision filling area is filled with anti-collision material 35.

[0050] In this embodiment, the particulate material has the characteristic that it can undergo a certain volume shrinkage when subjected to pressure, and because the particles are relatively fine, some of the impact load can be converted into internal energy through friction between the particles. The anti-collision material 35 is filled with a flexible structure to prevent vehicle collisions.

[0051] In this example, the impact-resistant filling area is located below the explosion-proof filling area and is 2m high.

[0052] like Figure 2 As shown, in some optional embodiments, the side of the second receiving cavity closest to the first receiving cavity is an arched surface, and the side of the first receiving cavity connected to the second receiving cavity is a concave surface that mates with the arched surface.

[0053] In this embodiment, the side of the second receiving cavity closest to the first receiving cavity is set as an arched surface, and the side of the first receiving cavity connected to the second receiving cavity is a concave surface that matches the arched surface. The arched structure has better stress distribution and can better absorb and resist impact loads.

[0054] In this example, the thickness at the top and bottom ends of the second receiving cavity is not less than 8 cm, and the thickness in the middle is not less than 18 cm.

[0055] In some optional embodiments, the structural housing 1 includes a third housing, a second housing, and a first housing 11, with the third receiving cavity, the second receiving cavity, and the first receiving cavity correspondingly disposed within the third housing, the second housing, and the first housing.

[0056] In this embodiment, the structural housing 1 includes a third housing, a second housing, and a first housing 11. The third receiving cavity, the second receiving cavity, and the first receiving cavity are respectively disposed inside the third housing, the second housing, and the first housing, which makes it more convenient to install the explosion-proof and shock-absorbing filling layer 3.

[0057] In this example, the first housing 11 is detachably connected to the second housing, making it convenient to replace the first housing 11.

[0058] like Figure 2 and Figure 3 As shown, in some optional embodiments, the side of the first housing 11 away from the second housing is a corrugated steel plate 113.

[0059] In this embodiment, the side of the first housing 11 away from the second housing is a corrugated steel plate 113. The corrugated steel plate 113 can absorb a certain impact load, and the corrugated steel plate 113 has a larger deformation when subjected to impact load, and a greater pressure on the load release filling layer 31.

[0060] In summary, when using this explosion-proof vibration damping device, the load-absorbing filling layer 33, the load-resistance filling layer 32, and the load-releasing filling layer 31 are respectively installed in the third receiving cavity, the second receiving cavity, and the first receiving cavity in the structural shell 1, connecting the structural shell 1 to the outer wall of the tunnel structure 2. Because the explosion-proof vibration damping filling layer 3 is arranged on the outer wall of the tunnel structure 2 to withstand the impact load on the tunnel structure 2, the impact load on the tunnel structure 2 is absorbed or reduced through the explosion-proof vibration damping filling layer 3. This solves the problem of using the method of reinforcing the open section and the light transition section to reduce the impact of the explosion load on this part of the structure in the prior art. However, the impact of the explosion load on this part of the structure is difficult to reverse, and there is a possibility of shortening the service life of the open section and the light transition section, creating safety hazards.

[0061] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0062] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0063] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An explosion-proof shock absorption device, characterized in that, include: The structural shell (1) is used to connect to the outer wall of the tunnel structure (2), and the structural shell (1) is provided with a third receiving cavity, a second receiving cavity and a first receiving cavity in sequence from the side closer to the tunnel structure (2); The explosion-proof and shock-absorbing filling layer (3) includes a load-absorbing filling layer (33), a load-resisting filling layer (32), and a load-releasing filling layer (31). The load-absorbing filling layer (33), the load-resisting filling layer (32), and the load-releasing filling layer (31) are respectively disposed in the third accommodating cavity, the second accommodating cavity, and the first accommodating cavity. The explosion-proof and shock-absorbing filling layer (3) is used to withstand the impact load on the tunnel structure (2). The first accommodating cavity is divided into an explosion-proof filling area and an anti-collision filling area. The explosion-proof filling area is filled with particulate material, and the anti-collision filling area is filled with anti-collision material (35). The side of the second receiving cavity closest to the first receiving cavity is an arched surface, and the side of the first receiving cavity connected to the second receiving cavity is a concave surface that mates with the arched surface; The structural housing (1) includes a third housing, a second housing, and a first housing (11), and the third receiving cavity, the second receiving cavity, and the first receiving cavity are respectively disposed in the third housing, the second housing, and the first housing.

2. The explosion-proof shock absorption device as described in claim 1, characterized in that, The first accommodating cavity is provided with a plurality of pressure relief ports (111) on the side away from the tunnel structure (2). Each pressure relief port (111) is provided with a pressure relief cover (112). The pressure relief cover (112) is placed on the pressure relief port (111). When the preset pressure value is reached, the pressure relief cover (112) is opened and the load release filling layer (31) is ejected from the pressure relief port (111).

3. The explosion-proof shock absorption device as described in claim 1, characterized in that, The load-absorbing filling layer (33) includes: A filling material (332) is disposed within the third receiving cavity; An elastic compression component (331) is disposed within the filler material (332) to cooperate with the filler material (332) to absorb loads by deforming.

4. The explosion-proof shock absorption device as described in claim 3, characterized in that, The elastic compression assembly (331) includes a plurality of spring groups spaced apart in the vertical direction, the spring groups including a plurality of springs spaced apart in the horizontal direction, the springs being arranged along the arrangement direction of the third receiving cavity, the second receiving cavity and the first receiving cavity.

5. The explosion-proof shock absorption device as described in claim 3, characterized in that, The load release filling layer (31) is made of granular material, the load resistance filling layer (32) is made of foamed concrete, and the filling material (332) is made of polymer damping material.

6. The explosion-proof shock absorption device as described in claim 1, characterized in that, A fourth cavity is provided on the side of the third cavity away from the second cavity. The fourth cavity is provided with a tunnel protection filling layer (34). The tunnel protection filling layer (34) is made of foamed concrete and can be deformed.

7. The explosion-proof shock absorption device as described in claim 1, characterized in that, The side of the first housing (11) away from the second housing is a corrugated steel plate (113).

Images