CN212673970U - Protection device for tunnel blasting - Google Patents
Protection device for tunnel blasting Download PDFInfo
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- CN212673970U CN212673970U CN202021523890.1U CN202021523890U CN212673970U CN 212673970 U CN212673970 U CN 212673970U CN 202021523890 U CN202021523890 U CN 202021523890U CN 212673970 U CN212673970 U CN 212673970U
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Abstract
The utility model discloses a protective device for tunnel blasting, which comprises a bracket and a protective mechanism arranged on the bracket, wherein the protective mechanism comprises a protective net layer, a rubber layer and an acoustic sponge layer which are sequentially arranged from the inner side to the outer side of the tunnel; the sound absorption sponge layer and the rubber layer are arranged at intervals, and the support top beam is provided with a sprayer for spraying a water curtain barrier at the position where the sound absorption sponge layer and the rubber layer are arranged at intervals. The utility model discloses can effectively protect flying stone, have good protecting effect to dust and noise simultaneously.
Description
Technical Field
The utility model relates to a construction protective equipment, more specifically say that it relates to a protector of tunnel blasting that it relates to.
Background
With the accelerated development of economy and the large-scale development of traffic infrastructure, tunnel construction is carried out in more and more places, and simultaneously, the environmental and safety requirements are higher and higher, and blasting operation is often adopted in tunnel construction, and factors influencing the environment such as blasting flying stones, dust and shock waves are inevitably generated in the blasting operation process. Many units mostly adopt wood boards, sand bags or other temporary turnover materials for protection during tunnel portal blasting construction, and these relatively crude measures mainly aim at flying stones, are not ideal in protection effects of dust, noise and the like, and are difficult to weaken influences of dust, noise and the like generated in blasting.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides a protector of tunnel blasting can effectively protect flying stone, has good protecting effect to dust and noise simultaneously.
In order to achieve the above purpose, the utility model provides a following technical scheme: a protection device for tunnel blasting comprises a frame-shaped support and a protection mechanism arranged on the support, wherein the protection mechanism comprises a protection net layer, a rubber layer and a sound absorption sponge layer which are sequentially arranged from the inner side to the outer side of a tunnel, the rubber layer is tightly attached to the side of the protection net layer, a plurality of through holes are formed in the rubber layer, and one side, with a horn-shaped opening, of each through hole is arranged towards the protection net layer; the sound absorption sponge layer and the rubber layer are arranged at intervals, and the support top beam is provided with a sprayer for spraying a water curtain barrier at the position where the sound absorption sponge layer and the rubber layer are arranged at intervals.
The utility model discloses further set up to: the surface of the rubber layer is fully distributed with anti-skid particles.
The utility model discloses further set up to: the protective net layer is a steel wire mesh, and a protective layer made of rubber is sleeved outside steel wires on the steel wire mesh.
The utility model discloses further set up to: the diameter of the through hole towards the hole opening of the sound absorption sponge layer is 3-7 mm.
The utility model discloses further set up to: and a drainage groove is arranged on the cross beam at the bottom of the support and corresponds to the spray head, a plurality of channels extend from the drainage groove towards the direction of the protective net layer, and water is drained to the inner side of the tunnel through the channels.
The utility model discloses further set up to: the thickness of the rubber layer is 20-30mm, the thickness of the sound absorption sponge layer is 40-60mm, and the thickness of the gap between the rubber layer and the sound absorption sponge layer is 50-60 mm.
To sum up, the utility model discloses following beneficial effect has: carry out double-deck interception protection to the flyrock through setting up on protection stratum reticulare and rubber layer to and the rubber layer with inhale the sound sponge layer and form the weakening of double-deck sound insulation structure enhancement to the noise, the water curtain that the air bed cooperation shower nozzle that forms between the sound sponge layer was simultaneously on the rubber layer and inhale strengthens reflection, the weakening to the noise, the water curtain can see through the dust fall on rubber layer with the part simultaneously.
Drawings
FIG. 1 is a schematic plan view of the present embodiment;
fig. 2 is a sectional structural schematic view of the stent of the present embodiment.
Reference numerals: 1. a support; 2. a protective mesh layer; 3. a rubber layer; 31. a through hole; 4. a sound absorbing sponge layer; 5. a spray head; 6. a water discharge tank; 61. a channel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment discloses a protection device for tunnel blasting, which comprises a frame-shaped support 1 arranged at a tunnel portal and a protection mechanism arranged on the support 1, wherein the protection mechanism comprises a protection net layer 2, a rubber layer 3 and a sound-absorbing sponge layer 4 which are sequentially arranged from the inner side to the outer side of a tunnel, the rubber layer 3 is tightly attached to the side of the protection net layer 2, the rubber layer 3 is provided with a plurality of through holes 31, and the through holes 31 are horn-shaped and are arranged towards the protection net layer 2 at one side with a large opening; inhale and set up the double-deck sound-proof structure of formation in the interval between sound sponge layer 4 and the rubber layer 3, 1 back timber of support is provided with the shower nozzle 5 that is used for spraying the water curtain barrier in the position of inhaling sound sponge layer 4 and the 3 intervals in rubber layer.
The large flying stones are protected and intercepted through the protection net layer 2, and the rubber layer 3 tightly attached to the protection net layer 2 can intercept the small flying stones penetrating through the protection net layer 2, so that the effect of double-layer intercepting and protecting functions is achieved, and the protection effect is enhanced. The sound sponge layer 4 of inhaling that sets up can effectively weaken the noise, and rubber layer 3 and inhale the weakening of sound sponge layer 4 formation double-deck sound-proof structure enhancement to the noise, thereby the air bed cooperation shower nozzle 5 that forms between rubber layer 3 and the sound sponge layer 4 is connected the reflection of water curtain enhancement to the noise after the water source, thereby weaken and form the triple measure of making an uproar and strengthen the effect of making an uproar of falling, the loudspeaker form through-hole 31 that sets up on the rubber layer 3 simultaneously can adsorb the flying dust, play the dust fall effect, the part sees through the water curtain that rubber layer 3 can be sprayed by.
Further, the surface of the rubber layer 3 is covered with anti-skid particles.
The anti-slip particles are arranged on the surface of the rubber layer 3, so that the surface of the rubber layer 3 is rough, the adsorption area is increased, and the flying dust of air can be adsorbed on the surface as much as possible.
The protective net layer 2 is a steel wire mesh, and a protective layer made of rubber is sleeved outside steel wires on the steel wire mesh.
Make protection stratum reticulare 2's structural strength high through utilizing the wire net as protection stratum reticulare 2, be difficult for receiving flying stone impact damage, the protective layer cover that sets up rubber simultaneously makes the difficult impaired change of steel wire on the steel wire of wire net, protective layer wearing and tearing only need mend the glue can, saved the maintenance cost.
Further, the diameter of the through hole 31 is 5mm toward the opening of the sound-absorbing sponge layer 4.
The small crushed stones are prevented from passing through the rubber layer 3 by restricting the apertures of the through holes 31.
Furthermore, a drainage groove 6 extending along the width direction of the support 1 is arranged on a cross beam at the bottom of the support 1 corresponding to the spray head 5, a plurality of channels 61 extend from the drainage groove 6 towards the direction of the protective net layer 2, and water is discharged to the inner side of the tunnel through the channels 61.
Can derive the water that is used for the dust fall of shower nozzle 5 and lead the tunnel inboard through water drainage tank 6, avoid rivers to have too much influence to inhaling sound sponge layer 4.
Further the thickness of rubber layer 3 is 25mm, sound absorption sponge layer 4 thickness is 50mm, and the interval thickness between rubber layer 3 and the sound absorption sponge layer 4 is 55 mm.
Make 3 rubber layer have sufficient thickness buffering fritter flyrock through setting up 3 thicknesses on rubber layer to and the simple weakening of noise, the sound sponge layer 4 thickness of inhaling of setting and rubber layer 3 and the interval thickness of inhaling between the sound sponge layer 4 make the noise have certain distance to weaken the noise when getting into the rubber layer 3 and inhaling the space between the sound sponge layer 4, pass at last and inhale that can be better behind the sound sponge layer 4 and be weakened, reach the effect of effective noise reduction.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides a protection device of tunnel blasting, includes the support of frame type and sets up the protection machanism on the support, its characterized in that: the protective mechanism comprises a protective net layer, a rubber layer and a sound-absorbing sponge layer which are sequentially arranged from the inner side to the outer side of the tunnel, the rubber layer is tightly attached to the side of the protective net layer, a plurality of through holes are formed in the rubber layer, and the side, with the larger opening, of each through hole is arranged towards the protective net layer; the sound absorption sponge layer and the rubber layer are arranged at intervals, and the support top beam is provided with a sprayer for spraying a water curtain barrier at the position where the sound absorption sponge layer and the rubber layer are arranged at intervals.
2. A protection device for tunnel blasting according to claim 1, characterized in that: the surface of the rubber layer is fully distributed with anti-skid particles.
3. A protection device for tunnel blasting according to claim 2, characterized in that: the protective net layer is a steel wire mesh, and a protective layer made of rubber is sleeved outside steel wires on the steel wire mesh.
4. A protection device for tunnel blasting according to claim 3, wherein: the diameter of the through hole towards the hole opening of the sound absorption sponge layer is 3-7 mm.
5. A device for protecting against tunnel blasts according to claim 4, characterized in that: and a drainage groove is arranged on the cross beam at the bottom of the support and corresponds to the spray head, a plurality of channels extend from the drainage groove towards the direction of the protective net layer, and water is drained to the inner side of the tunnel through the channels.
6. A device for protecting against tunnel blasts according to claim 5, characterized in that: the thickness of the rubber layer is 20-30mm, the thickness of the sound absorption sponge layer is 40-60mm, and the thickness of the gap between the rubber layer and the sound absorption sponge layer is 50-60 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021523890.1U CN212673970U (en) | 2020-07-28 | 2020-07-28 | Protection device for tunnel blasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021523890.1U CN212673970U (en) | 2020-07-28 | 2020-07-28 | Protection device for tunnel blasting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212673970U true CN212673970U (en) | 2021-03-09 |
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ID=74816069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021523890.1U Active CN212673970U (en) | 2020-07-28 | 2020-07-28 | Protection device for tunnel blasting |
Country Status (1)
| Country | Link |
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| CN (1) | CN212673970U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074599A (en) * | 2021-03-19 | 2021-07-06 | 郑州大学 | High polymer broken stone protective device for eliminating near-field underwater blasting shock wave |
| CN115289931A (en) * | 2022-08-18 | 2022-11-04 | 中铁十六局集团有限公司 | Blasting flyrock protector |
| CN115451767A (en) * | 2022-10-23 | 2022-12-09 | 中铁十八局集团第二工程有限公司 | Processing method for preventing quality of building from being influenced by blasting |
-
2020
- 2020-07-28 CN CN202021523890.1U patent/CN212673970U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074599A (en) * | 2021-03-19 | 2021-07-06 | 郑州大学 | High polymer broken stone protective device for eliminating near-field underwater blasting shock wave |
| CN113074599B (en) * | 2021-03-19 | 2022-06-28 | 郑州大学 | High polymer broken stone protective device for eliminating near-field underwater blasting shock wave |
| CN115289931A (en) * | 2022-08-18 | 2022-11-04 | 中铁十六局集团有限公司 | Blasting flyrock protector |
| CN115289931B (en) * | 2022-08-18 | 2023-08-15 | 中铁十六局集团有限公司 | Blasting flyrock protector |
| CN115451767A (en) * | 2022-10-23 | 2022-12-09 | 中铁十八局集团第二工程有限公司 | Processing method for preventing quality of building from being influenced by blasting |
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