Sound insulation protection equipment for tunnel blasting

Abstract

The utility model belongs to the technical field of blasting protection equipment, and particularly relates to tunnel blasting sound insulation protection equipment which comprises a protection pad arranged above a blasting hole in a covering mode. The reinforcing plate is arranged on the bottom surface of the protective pad and covers the bottom surface of the protective pad; the composite protection body is arranged on the surface of the protection pad, and the composite protection body at least comprises a layer of sound absorption sponge blocks; wherein the composite protection body is arranged in the center of the surface of the protection pad, and compared with the prior art, the protection effect of the sound insulation protection equipment for tunnel blasting can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of blasting protection equipment, and in particular relates to a tunnel blasting sound insulation and protection device. Background Technology

[0002] Blasting is a common construction method in building engineering, and tunnel blasting is one of them. In tunnel blasting, soundproofing and protection equipment is usually needed to protect the blasting operation and prevent the impact and noise generated by the blast from affecting the workers and the environment outside the blasting area.

[0003] Common tunnel blasting noise protection equipment typically uses soundproofing pads, which are usually made of tire mats and are often used for blasting operations in vertically drilled and filled blast holes. However, the soundproofing effect of this existing equipment is poor, and it is also easily blown away by the debris generated by the blast. As a result, the impact and noise generated by the blast may still affect the workers and the environment outside the blasting area, so it is necessary to make improvements. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a tunnel blasting sound insulation and protection device, so as to effectively improve the protective effect of the tunnel blasting sound insulation and protection device.

[0005] In view of this, the present invention provides a tunnel blasting sound insulation and protection device, comprising:

[0006] A protective pad is provided to cover the top of the blast hole;

[0007] Also includes:

[0008] A reinforcing plate is disposed on the bottom surface of the protective pad and covers the bottom surface of the protective pad;

[0009] A composite protective body is disposed on the surface of a protective pad, and the composite protective body includes at least one layer of sound-absorbing sponge block;

[0010] The composite protective body is placed at the center of the protective pad surface.

[0011] In this technical solution, after the blasting hole is filled with explosives and ready for blasting, a protective pad is laid on top of the blasting hole. After the blast occurs, the protective pad can seal the blasting hole, reducing the escape of blasting gases and thus reducing gas explosion noise. At the same time, the reinforced version can reduce the impact damage of debris to the protective pad, and the sound-absorbing sponge block in the composite protective body can further absorb the impact energy and sound wave energy generated by the blast using its porous structure. Compared with the prior art, this utility model can effectively improve the protective effect of tunnel blasting sound insulation and protection equipment.

[0012] In the above technical solution, the composite protective body further includes:

[0013] A frame, which is fixedly arranged on the surface of the protective pad and has a placement groove formed on the inner side of the frame;

[0014] A sound-absorbing layer is wrapped around the outside of the sound-absorbing sponge block to further protect against explosion noise.

[0015] A cover is placed on the outside of the sound-absorbing layer and the sound-absorbing sponge block to fix the composite protective body as a whole.

[0016] In the above technical solution, the composite protective body further includes several layers of sound-absorbing sponge blocks, which are stacked and distributed in the vertical direction.

[0017] In the above technical solution, the sound-absorbing sponge block is further composed of two blocks of different sizes, and the two blocks of adjacent sound-absorbing sponge blocks are staggered.

[0018] In the above technical solution, the protective pad further includes:

[0019] A rubber pad body, wherein a profile cavity is provided in the rubber pad body, and a plurality of aluminum profiles or fiber-reinforced plastic profiles are arranged in parallel in the profile cavity.

[0020] In the above technical solution, the aluminum profile or fiber-reinforced plastic profile is a hollow structure, and the interior of the aluminum profile or fiber-reinforced plastic profile may be filled with aluminum foam or have reinforcing ribs inserted.

[0021] The beneficial effects of this utility model are:

[0022] 1. The protective effect of tunnel blasting sound insulation and protection equipment can be effectively improved by combining protective pads and composite protective bodies;

[0023] 2. The use of sound-absorbing sponge blocks and sound-absorbing layers can effectively dissipate the sound wave energy generated by the blast, preventing the blast noise from affecting workers and the environment outside the blasting area;

[0024] 3. By combining the rubber pad with the profile, the absorption effect of the protective pad on the explosive impact energy can be improved, further reducing the impact of blasting operations on workers and the environment outside the blasting area. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model.

[0027] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0028] Figure 3 This is a schematic cross-sectional view of the present invention.

[0029] Figure 4 This is a schematic diagram of the protective pad structure of this utility model.

[0030] Figure 5 This is a schematic diagram of the structure of Embodiment 4 of this utility model.

[0031] The markings in the diagram are as follows:

[0032] 1. Protective pad; 10. Rubber pad body; 11. Profile cavity; 12. Aluminum profile; 13. Foamed aluminum; 14. Reinforcing rib; 2. Reinforcing plate; 3. Composite protective body; 30. Sound-absorbing sponge block; 31. Frame; 32. Placement groove; 33. Sound-absorbing layer; 34. Cover. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0035] Example 1:

[0036] This application provides a tunnel blasting sound insulation and protection device, including: a protective pad 1, which is arranged above the blasting hole;

[0037] It also includes: a reinforcing plate 2, which is disposed on the bottom surface of the protective pad 1 and covers the bottom surface of the protective pad 1; and a composite protective body 3, which is disposed on the surface of the protective pad 1, and the composite protective body 3 includes at least one layer of sound-absorbing sponge block 30.

[0038] The composite protective body 3 is placed at the center of the surface of the protective pad 1.

[0039] Moreover, the main material of the protective pad 1 can be conventional rubber, the reinforcing plate 2 can be a rigid plate such as aluminum plate, the reinforcing plate 2 and the protective pad 1 can be bonded together, and the protective pad 1 is directly placed on top of the blast hole after the explosive is filled in the blast hole.

[0040] In this embodiment, after the blasting hole is filled with explosives and ready for blasting, the protective pad 1 is laid on top of the blasting hole. After the blast occurs, the protective pad 1 can seal the blasting hole, reduce the escape of blasting gas, and thus reduce gas explosion noise. At the same time, the reinforced version can reduce the impact damage of the protective pad 1 to the debris. Furthermore, the sound-absorbing sponge block 30 in the composite protective body 3 can further absorb the impact energy and sound wave energy generated by the blast using its porous structure. Compared with the prior art, this utility model can effectively improve the protective effect of tunnel blasting sound insulation and protection equipment.

[0041] Example 2:

[0042] This embodiment provides a tunnel blasting noise insulation and protection device. In addition to the technical solutions of the above embodiments, it also has the following technical features: the composite protective body 3 further includes: a frame 31, which is fixedly arranged on the surface of the protective pad 1 and a placement groove 32 is formed on the inner side of the frame 31; a sound-absorbing layer 33, which is wrapped around the outside of the sound-absorbing sponge block 30 for further protection against blasting noise; and a cover 34, which is placed on the outside of the sound-absorbing layer 33 and the sound-absorbing sponge block 30 for fixing the composite protective body 3 as a whole.

[0043] The composite protective body 3 includes several layers of sound-absorbing sponge blocks 30, which are stacked and distributed in the vertical direction.

[0044] The sound-absorbing sponge block 30 is composed of two blocks, one large and one small, and the two blocks of the adjacent sound-absorbing sponge blocks 30 are staggered.

[0045] Furthermore, the frame 31 can be a conventional pipe frame, consisting of four pipes arranged in a rectangular shape. The four pipes are connected to each other by conventional connection methods, such as clamps. The frame 31 and the protective pad 1 can be fixedly connected by conventional joining components. The sound-absorbing layer 33 can be made of conventional porous fabric, such as non-woven fabric. The cover 34 includes a main body covering the surface of the sound-absorbing layer 33 and the sound-absorbing sponge block 30, and extensions distributed on the four sides of the main body and covering the sides of the sound-absorbing layer 33 and the sides of the sound-absorbing sponge block 30. The main body and the extensions are integrally formed. The extensions can be connected by conventional joining zippers to fix the composite protective body 3 as a whole to constrain the displacement of the sound-absorbing sponge block 30.

[0046] In this embodiment, the sound-absorbing layer 33 further dissipates the sound wave energy generated by the explosion through collision and friction in the porous material, thereby blocking the propagation of noise and improving the protective effect of the tunnel blasting sound insulation and protection equipment. At the same time, the frame 31 and cover 34 constrain and fix the sound-absorbing sponge blocks, preventing the sound-absorbing sponge blocks 30 from scattering and shifting due to the explosion. Furthermore, the design of several layers of sound-absorbing sponge blocks 30 and their staggered stacking further extends the energy attenuation path and improves the protective effect of the tunnel blasting sound insulation and protection equipment.

[0047] Example 3:

[0048] This embodiment provides a tunnel blasting sound insulation and protection device. In addition to the technical solution of the above embodiment, it also has the following technical features: the protective pad 1 further includes: a rubber pad body 10, in which a profile cavity 11 is provided, and a plurality of aluminum profiles 12 or fiber reinforced plastic profiles are arranged in parallel in the profile cavity 11.

[0049] In this embodiment, by using the rubber pad 10 and its internal profile, when an explosion occurs, the rubber pad 10 and the profile can dissipate the impact energy twice through elastic deformation and plastic deformation, thereby effectively improving the protection effect against blasting operations.

[0050] Example 4:

[0051] This embodiment provides a tunnel blasting sound insulation and protection device. In addition to the technical solution of the above embodiment, it also has the following technical features: the aluminum profile 12 or the fiber reinforced plastic profile is a hollow structure, and the aluminum profile 12 or the fiber reinforced plastic profile can be filled with aluminum foam 13 or have reinforcing ribs 14 inserted inside.

[0052] In this embodiment, filling with aluminum foam 13 can further increase the energy absorption density of the profile, while inserting reinforcing ribs 14 can further disperse the explosive impact force, thereby further improving the protection effect against blasting operations.

[0053] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A tunnel blasting sound insulation and protection device, comprising: A protective pad (1) is arranged over the blast hole; Its characteristic is that it further includes: A reinforcing plate (2) is provided on the bottom surface of the protective pad (1) and covers the bottom surface of the protective pad (1); A composite protective body (3) is disposed on the surface of the protective pad (1), and the composite protective body (3) includes at least one layer of sound-absorbing sponge block (30); The composite protective body (3) is placed at the center of the surface of the protective pad (1).

2. A tunnel blasting acoustic shield apparatus according to claim 1, wherein, The composite protective body (3) also includes: A frame (31) is fixedly arranged on the surface of the protective pad (1) and a placement groove (32) is formed on the inner side of the frame (31); A sound-absorbing layer (33) is wrapped around the outside of the sound-absorbing sponge block (30) to further protect against blasting noise; Cover (34) is placed on the outside of the sound-absorbing layer (33) and the sound-absorbing sponge block (30) to fix the composite protective body (3) as a whole.

3. A tunnel blasting acoustic shield apparatus according to claim 2, wherein: The composite protective body (3) includes several layers of sound-absorbing sponge blocks (30), which are stacked and distributed in the vertical direction.

4. A tunnel blasting acoustic shield apparatus according to claim 3, wherein: The sound-absorbing sponge block (30) is composed of two blocks, one large and one small, and the two blocks of adjacent sound-absorbing sponge blocks (30) are staggered.

5. A tunnel blasting acoustic shield apparatus according to claim 1, wherein The protective pad (1) also includes: A rubber pad body (10) is provided with a profile cavity (11), and a plurality of aluminum profiles (12) or fiber-reinforced plastic profiles are arranged in parallel in the profile cavity (11).

6. A tunnel blasting acoustic shield apparatus according to claim 5, wherein: The aluminum profile (12) or fiber-reinforced plastic profile is a hollow structure, and the interior of the aluminum profile (12) or fiber-reinforced plastic profile may be filled with aluminum foam (13) or have reinforcing ribs (14) inserted.

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