Noise reduction device for tunnel construction

Abstract

The utility model discloses a noise reduction device for tunnel construction. The noise reduction device comprises a supporting frame, a noise reduction assembly and an adsorption assembly. The noise reduction assembly and the adsorption assembly are arranged on the supporting frame; the supporting frame is a steel structure frame. The noise reduction assembly comprises a unit frame, a noise reduction curtain and an elastic limiting rope net. The adsorption assembly comprises a unit frame, an adsorption curtain, an elastic limiting rope net and a front steel net. The unit frame further comprises a top reflection unit. The top reflection unit is detachably and fixedly arranged above the unit frame and comprises a bottom frame, a vertical frame and a reflection plate. According to the utility model, the noise reduction curtain is used for reducing noise, during use, escape of noise can be effectively reduced through the multiple groups of noise reduction adsorption units which are arranged in a staggered manner, and on-site assembly and use are facilitated due to the adoption of modular design in specific structure. The problem that the height of the unit frame cannot adapt to all tunnels is solved through the top reflection unit.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction equipment, in particular to a noise reduction device for tunnel construction. Background Art

[0002] Blasting construction is a commonly used process in tunnel construction. The noise generated during tunnel blasting construction will interfere with the normal lives of surrounding residents and easily affect surrounding equipment. In addition, a large amount of toxic gases will be generated during the blasting process. If not handled in time, it will also pose a risk to the health of construction workers.

[0003] Currently, this problem can be addressed by installing sound insulation panels, adding filtering devices and personal protective equipment, but there is no integrated product. Utility Model Content

[0004] The utility model aims to provide a noise reduction device for tunnel construction to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model provides a noise reduction device for tunnel construction, which is used for noise reduction in tunnel blasting construction, including a support frame, a plurality of noise reduction components, and a plurality of adsorption components; the noise reduction components and the adsorption components are arranged on the support frame; the support frame is a steel structure frame; the noise reduction components include a unit frame, a noise reduction curtain, and an elastic limiting rope net; the adsorption components include a unit frame, an adsorption curtain, an elastic limiting rope net, and a front steel net.

[0006] Preferably, the unit frame is a steel structure frame, the upper parts of the noise reduction curtain and the adsorption curtain are suspended on the upper part of the unit frame, an elastic limiting rope net is arranged on one side of the unit frame, and the noise reduction curtain and the adsorption curtain are arranged in front of the elastic limiting rope net; a front steel net is arranged on the other side of the unit frame of the adsorption component, and the adsorption curtain is arranged between the front steel net and the elastic limiting rope net.

[0007] Preferably, the noise reduction component also includes a front steel mesh, and the noise reduction curtain is arranged between the front steel mesh and the elastic limiting rope net.

[0008] Preferably, the support frame includes a rectangular frame body, a unit frame insertion port is provided on the frame body, a horizontally extending transverse support portion is provided at the bottom of the square frame body, and an oblique support structure is provided at the unit frame insertion port; the transverse support portion is a metal frame horizontally extending at the bottom of the rectangular frame body, and the oblique support structure includes two vertical support columns provided behind the insertion port, and an oblique rod connecting the top of the vertical support column and the far end of the transverse support portion.

[0009] Preferably, the noise reduction curtain comprises a base fabric layer and a sound-absorbing layer, and the adsorption curtain comprises a base fabric layer and a water-absorbing layer; the sound-absorbing layer and the water-absorbing layer are bonded to the base fabric layer; and array-distributed through holes are provided on the base fabric layer, the sound-absorbing layer and the water-absorbing layer.

[0010] Preferably, the unit frame also includes a top reflection unit; the top reflection unit is detachably fixed above the unit frame, and includes a bottom frame, a vertical frame, and a reflection plate, wherein the vertical frame is fixed to one side of the bottom frame, and the reflection plate is arranged obliquely, with the upper part fixed to the top of the vertical frame and the lower part fixed to the other side of the bottom frame.

[0011] Preferably, a breathable window is provided on the reflecting plate, and a rear window plate is provided behind the window. The rear window plate is fixedly connected to the top of the window, arranged at an angle, and the lower part is inclined away from the window; further, a sound-absorbing plate is provided on the bottom frame below the reflecting plate.

[0012] The utility model adopts a noise reduction curtain to reduce noise, and at the same time, an adsorption curtain is arranged in front of the noise reduction curtain. The alkaline liquid on the adsorption curtain can effectively reduce the toxic gas generated by the blasting, and at the same time, it can provide a certain protection for the noise reduction curtain, and reduce the damage to the noise reduction curtain caused by flying stones generated by the blasting. Multiple groups of noise reduction adsorption units arranged in a staggered manner can effectively reduce the escape of noise and toxic gases, and at the same time, the damage to the noise reduction adsorption unit caused by the blasting shock wave can be reduced. In terms of specific structure, a modular design is adopted, which is convenient for on-site assembly and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall solution of the utility model.

[0014] Figure 2 It is a schematic diagram of the use arrangement of the utility model.

[0015] Figure 3 It is a schematic diagram of the use arrangement of the utility model.

[0016] Figure 4 It is a schematic diagram of a unit frame of another embodiment of the utility model.

[0017] Figure 5 It is a schematic diagram of a unit frame of another embodiment of the utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] As attached Figure 1 As shown, a noise reduction device for tunnel construction according to the utility model comprises a support frame 1, a plurality of noise reduction components 2, and a plurality of adsorption components 3.

[0020] The noise reduction component 2 and the adsorption component 3 are arranged on the support frame 1 .

[0021] The support frame 1 is a steel structure frame.

[0022] The noise reduction assembly 2 includes a unit frame t1, a noise reduction curtain 21, and an elastic limiting rope net t2.

[0023] The adsorption assembly 3 includes a unit frame t1, an adsorption curtain 31, an elastic limiting rope net t2, and a front steel net t3.

[0024] The unit frame t1 is a steel structure frame, which is used to place the noise reduction curtain 22 and the adsorption curtain 32, and can be a rectangular frame. The upper part of the noise reduction curtain 22 and the adsorption curtain 32 is suspended on the upper part of the rectangular frame, and the noise reduction curtain 22 and the adsorption curtain 32 cover the window in the center of the rectangular frame. An elastic limiting rope net t2 is arranged on one side of the unit frame t1, and the elastic limiting rope net t2 is arranged on the side away from the explosion direction, and the noise reduction curtain 22 and the adsorption curtain 32 are arranged in front of the elastic limiting rope net t2.

[0025] A front steel net t3 is arranged on the other side of the unit frame t1 of the adsorption assembly 3, and the adsorption curtain 32 is arranged between the front steel net t3 and the elastic limiting rope net t2.

[0026] The noise reduction component 2 may also include a front steel mesh t3, and the noise reduction curtain 21 is arranged between the front steel mesh t3 and the elastic limiting rope net t2.

[0027] The support frame 1 includes a rectangular frame body 10, which is realized by welding metal pipes. A unit frame t1 insertion port k is arranged on the frame body, a horizontally extending lateral support portion 11 is arranged at the bottom of the square frame body, and an inclined support structure 12 is arranged at the unit frame t1 insertion port.

[0028] The transverse support portion 11 is a metal frame extending horizontally at the bottom of the rectangular frame body 10 , and the inclined support structure 12 includes two vertical support columns arranged behind the insertion port k, and an inclined rod connecting the top of the vertical support columns and the far end of the transverse support portion 11 .

[0029] When in use, the unit frame t1 is inserted into the unit frame t1 insertion port provided on the main body through the steel frame, and the unit frame t1 is connected to the support frame 1 through a bolt structure.

[0030] As attached Figure 2 As shown, in one embodiment of the present application, a plurality of noise reduction components 2 and a plurality of adsorption components 3 are used as shown in the attached Figure 2 In the arrangement shown, a plurality of adsorption components 3 are arranged closest to the explosion direction, and a plurality of noise reduction components 2 are arranged behind the adsorption components 3. The noise reduction components 2 and adsorption components 3 are arranged alternately, and the passage in the middle can reduce the damage of the explosion shock wave to the noise reduction components 2 and the adsorption components 3.

[0031] In another embodiment of the present application, the noise reduction component 2 and the adsorption component 3 are taken as a unit, and multiple units are arranged in a staggered manner.

[0032] Generally speaking, the frontmost adsorption component 3 is located 30-50 meters behind the working surface, and the distance between the noise reduction component 2 and the adsorption component 3 is 2-5 meters. When in use, first place the support frame 1 on the ground, and then insert the unit frame t1 of the noise reduction component 2 and the adsorption component 3 into the insertion port k of the support frame 1, and lock it with bolts or other common structures. After the arrangement is completed, spray the adsorption liquid on the adsorption curtain 31 of the adsorption component 3.

[0033] As attached Figure 3 As shown, the noise reduction curtain 21 includes a base fabric layer b and a sound-absorbing layer 212. The sound-absorbing layer 212 is an absorbent cotton provided with array protrusions and bonded to the base fabric layer b. The adsorption curtain 31 includes a base fabric layer b and a water-absorbing layer 312. The base fabric layer b, the sound-absorbing layer 212 and the water-absorbing layer 312 are provided with array-distributed through holes to reduce the impact force received.

[0034] As attached Figure 4 , 5 As shown, an embodiment of a unit frame t1 is provided, wherein the unit frame t1 is made of welded steel square tubes, and mounting rods for noise reduction curtains 21 and adsorption curtains 31 are arranged at the top and bottom of the unit frame t1 and in the middle of the unit frame t1, and hooks (not shown in the figure) are arranged on the top and bottom sides of the unit frame t1 for setting an elastic limiting rope net t2 and a front steel net t3.

[0035] Since the unit frame t1 generally cannot fit all tunnels in height, the unit frame t1 further includes a top reflection unit t11.

[0036] The top reflection unit t11 ​​is detachably fixed above the unit frame t1, and includes a bottom frame t111, a vertical frame t112, and a reflection plate t113. The vertical frame t112 is fixed to one side of the bottom frame t111. The reflection plate t113 is arranged obliquely, with the upper part fixed to the top of the vertical frame t112 and the lower part fixed to the other side of the bottom frame t111.

[0037] Furthermore, a breathable window w1 is provided on the reflective plate t113, and a rear window plate w2 having a width consistent with or greater than that of the window w is provided at the rear of the window w2. The rear window plate w2 is fixedly connected to the top of the window w1, arranged at an angle, and the lower part is inclined away from the window w1.

[0038] Furthermore, a sound-absorbing plate w3 is provided on the bottom frame t111 below the reflecting plate t113, and the sound-absorbing plate w3 is provided with an array of protrusions or grooves.

[0039] The provision of the ventilation window w1 and the rear window panel w2 can guide the airflow to impact downward, and can reduce the impact force on the reflective plate t113.

[0040] It should be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

Claims

1. A noise reduction device for tunnel construction, characterized in that: It comprises a supporting frame, several noise reduction components and several adsorption components; the noise reduction components and adsorption components are arranged on the supporting frame; the supporting frame is a steel structure frame; the noise reduction components comprise a unit frame, a noise reduction curtain and an elastic limiting rope net; the adsorption components comprise a unit frame, an adsorption curtain, an elastic limiting rope net and a front steel net; the unit frame is a steel structure frame, the upper part of the noise reduction curtain and the adsorption curtain is suspended on the upper part of the unit frame, an elastic limiting rope net is arranged on one side of the unit frame, and the noise reduction curtain and the adsorption curtain are arranged in front of the elastic limiting rope net; a front steel net is arranged on the other side of the unit frame of the adsorption component, and the adsorption curtain is arranged between the front steel net and the elastic limiting rope net; the noise reduction component also comprises a front steel net, and the noise reduction curtain is arranged It is placed between the front steel net and the elastic limiting rope net; the support frame includes a rectangular frame body, a unit frame insertion port is arranged on the frame body, a horizontally extending transverse support portion is arranged at the bottom of the square frame body, and an oblique support structure is arranged at the unit frame insertion port; the transverse support portion is a horizontally extending metal frame arranged at the bottom of the rectangular frame body, and the oblique support structure includes two vertical support columns arranged behind the insertion port, and an oblique rod connecting the top of the vertical support column and the far end of the transverse support portion; the noise reduction curtain includes a base fabric layer and a sound-absorbing layer, and the adsorption curtain includes a base fabric layer and a water-absorbing layer; the sound-absorbing layer and the water-absorbing layer are bonded to the base fabric layer; the base fabric layer, the sound-absorbing layer and the water-absorbing layer are provided with array-distributed through holes.

2. The noise reduction device for tunnel construction according to claim 1, characterized in that: The unit frame also includes a top reflection unit; the top reflection unit is detachably fixed on the top of the unit frame, and includes a bottom frame, a vertical frame, and a reflection plate, wherein the vertical frame is fixed on one side of the bottom frame, and the reflection plate is arranged obliquely, with the upper part fixed on the top of the vertical frame and the lower part fixed to the other side of the bottom frame.

3. The noise reduction device for tunnel construction according to claim 2, characterized in that: A breathable window is arranged on the reflecting plate, a rear window plate is arranged behind the window, the rear window plate is fixedly connected to the top of the window, arranged obliquely, and the lower part is inclined away from the window, and a sound-absorbing plate is arranged on the bottom frame below the reflecting plate.

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