KR20100056926A - Blasting mat for vibration and noise of blasting - Google Patents

Abstract

PURPOSE: A blasting mat for vibration and noise reduction is provided to prevent the leakage of explosion pressure and scattering stone by covering a plurality of blasting holes. CONSTITUTION: A blasting mat for vibration and noise reduction comprises a cover member(13) and an elastic member(14). The cover member made of damping alloy covers a blasting section including a plurality of blasting holes to transform the vibration and noises caused by explosion through conversion into thermal energy. The elastic member is attached to the lower periphery of the cover member in order to prevent the leakage of explosion pressure and scattering stone.

Description

Blasting mat for vibration and noise reduction {Blasting mat for vibration and noise of blasting}

The present invention relates to a blasting mat for blasting vibration and noise reduction, and more particularly, to a blasting vibration and noise reducing blasting mat used when blasting and removing rock or the like in civil engineering.

As industrialization progresses and the urban concentration of the population is accelerated, civil engineering works are needed to secure large-scale housing, roads, and factory sites. In such civil works, a process for removing underground rock layers is essential.

In other words, in order to crush rock to a suitable size in civil engineering, rock crushers or gunpowder are commonly used. In particular, when gunpowder is used, a blast hole is formed at a predetermined depth in the target rock and the gunpowder is filled inside the blast hole. To install a detonator that can impact the gunpowder, send an electrical signal to the detonator, explode the gunpowder and blast the rock bed.

However, in the blasting method of the prior art as described above, in order to completely separate the rock layer of the portion to be crushed from the mother rock, a large amount of explosives must be used to increase the explosion pressure, so the explosion noise is high. In addition, not only some of the broken rocks fly away from the blasting site, but the blasting vibrations propagate away, thus adversely affecting the surrounding area.

In order to solve this problem, rubber mats and bales have been laid on the surface of the rock layers to prevent explosion noise and prevent broken pieces of rock from being scattered.However, rubber mats or bales that cover the rock layers by explosion pressure It is difficult to expect the effect of reducing explosion noise and vibration because it is easily blown away with broken rock fragments.

Therefore, in the prior art, when the authorization is located within 100m from the vicinity of the construction site, it is difficult to apply the blasting method, and even if possible, there is a problem of causing traffic jams because the traffic on the nearby roads must be blocked.

The present invention is to solve the above problems, by covering the upper portion of the blast hole drilled in the rock layer by the cover member made of the anti-vibration alloy, the explosion pressure generated during the rock layer blasting work of civil engineering is expanded to the surrounding The purpose is to provide a blasting mat that prevents explosion and prevents explosion noise and fugitives from being released into the environment.

According to an embodiment of the present invention for achieving the above object, in the blasting mat for blasting vibration and noise reduction, a cover member covering a blasting section formed with a plurality of blasting holes; And an elastic member attached to the lower edge of the cover member so that the explosion pressure generated when the explosives explode in the blast hole and sand and explosion gas scattered therefrom do not leak, wherein the cover member is vibration and noise caused by the explosion. Provided is a blasting mat for blasting vibration and noise reduction, characterized in that the dustproof alloy is reduced by converting it into thermal energy.

Preferably, in one embodiment of the present invention, the anti-vibration alloy is a Fe-Mn-based alloy, Mn-Cu-based alloy (Sonostone), Cr-Al-Fe-based alloy (Silenthaloy), Fe-Cr-Al-based It is good to be either alloy.

In addition, the cover member may be further provided with a weight member for reducing the lifting phenomenon of the cover member due to the explosion pressure.

In addition, between the cover member and the weight member, it is preferable that a dustproof rubber is further provided to suppress the occurrence of friction and vibration between the cover member and the weight member.

As described above, according to the blasting vibration and noise reduction blasting mat according to the present invention, by covering the blast hole by using a cover member of the anti-vibration alloy material, as well as the explosion noise and flying stone leakage caused by explosives, explosion noise and Explosion vibration can be prevented.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

(Embodiment 1)

1 is a perspective view showing a blasting mat according to a first embodiment of the present invention, Figure 2 is a cross-sectional view taken along line A-A of FIG.

The present invention focuses on covering a plurality of blast holes drilled in the case of blasting a rock layer using explosives during civil engineering, thereby preventing explosion noise and vibration and scattering of scattered stones due to blasting.

The first embodiment of the present invention includes a lid member 13 and an elastic member 14.

The cover member 13 is generally rectangular in shape and has a size that can cover the entire blasting hole, and has a strength and thickness sufficient to withstand the explosion pressure generated when the explosives installed in the blasting hole explode. The cover member 13 is a Fe-Mn-based alloy, Mn-Cu-based alloy (Sonostone), Cr-Al-Fe-based alloy (Silenthal) to absorb the vibration and noise generated during the explosion to be converted into internal thermal energy Roy) and a dust-proof alloy, such as Fe-Cr-Al type alloy.

The elastic member 14 is a member that promotes contact between the cover member 13 and the ground to prevent scattering of explosion sound or debris from the explosion due to the gap between the cover member 13 and the ground. 13) is installed on the edge. In this embodiment, the elastic member 14 has excellent elasticity and is easily attached with a bolt or the like, and waste tires (denoted by reference numeral 14) are used in terms of recycling industrial waste. The waste tire 14 withstands the explosion pressure with the buffering function of the cover member 13 in the case of explosive explosion, and blocks the explosion noise and the external emission of the explosive gas and fly ash, and also improves adhesion to uneven ground. The four sides of the cover member 13 are lifted off the ground to prevent the gap between the cover member 13 and the ground from occurring.

On the other hand, the lid member 13 is for improving the convenience of carrying the blasting mat and the weight members 10 and 11 having a predetermined weight in order to more effectively prevent the lifting of the lid member 13 due to the explosion pressure Ring 15 may be further installed.

Some of the weight members 10, 11 (member indicated by reference numeral 10) are installed along the upper edge of the lid member 13, and the remaining (member indicated by reference numeral 11) is in the center of the lid member 13. Is installed. In this embodiment, the weight members 10 and 11 are "H" section steels which are generally used in construction sites. However, with a certain weight and strength, other materials such as "I" section steel may be used in addition to the "H" section steel. For reference, the weight members 10 and 11 are coupled to the cover member 13 by a fastening means such as a bolt.

The ring 15 is a means for fixing the wire 12 when transporting and moving the blasting mat by means such as a crane, and a plurality of the ring member 13 or at least one of the weight member (10, 11) Is installed. The ring 15 is coupled to the cover member 13 or the weight members 10 and 11 by fastening means such as welding or bolts.

It is preferable that both the cover member 13 and the weight members 10 and 11 described above are made of a dustproof alloy. For reference, in the present specification, dustproof means to reduce the vibration source and the solid vibration itself, and a dustproof alloy means an alloy without sound by tapping to control the vibration by being attached to the surface of a mechanical device. Refers to the material used.

In addition, the vibration-proof material refers to a material that prevents vibration sound, and the vibration-proof material includes a sound absorbing material that converts and absorbs the vibration of the air pressure into thermal energy as a countermeasure for noise and a sound insulation material that blocks the propagation of the pneumatic vibration. Broadly speaking, the above materials are collectively referred to as anti-vibration alloys.

The anti-vibration performance of anti-vibration alloys is due to their internal friction. The vibration energy applied from the outside is absorbed by the thermal energy to reduce the noise generated by the resonance resonance. Particularly, in one embodiment of the present invention, the cover member 13 may be manufactured using an Mn-Cu-based alloy called Sonoston among the anti-vibration alloys, and the weight members 10 and 11 may also be manufactured from Sonoston as needed. Can be.

Referring to the use state of the blasting vibration and noise reduction blasting mat according to an embodiment of the present invention by such a configuration as follows.

First, the blasting mat is lifted into the heavy equipment before the blasting by explosives and covers the upper surface of the blasting section to be blasted. Here, the size of the blasting mat is larger than the blasting section, the blasting mat is installed so that the waste tires 14, which are elastic members, are positioned outside the blasting holes. Since the waste tires 14 are compressed to the ground surface of the blasting section by the weight of the weight members 10 and 11, the waste tires 14 may be in close contact with the ground surface even if the ground surface of the blasting section is uneven. Therefore, the blasting mat of the present invention is firmly installed on the upper surface of the blasting section by the weight members 10 and 11 and the waste tires 14.

If the blasting operation is performed while the blasting mat installed in the blasting section is pressed with heavy equipment as described above, the explosives loaded in each blasting hole of the blasting section covered by the blasting mat will explode in series, and when the explosives explode, The filled sand, explosive gas and explosion noise move to the upper side of the blast hole with strong pressure.

However, the cover member 13 of the blasting mat covering the ground surface of the blasting section has a thickness and strength sufficient to withstand the explosion pressure, and the closed tires 14, which are elastic members, are in close contact with the upper surface of the blasting section. In addition, since the waste tires 14 are in close contact with each other, the explosion pressure generated when the explosion and accompanying sand and explosion gas are not easily leaked to the outside of the blasting mat. In addition, since the waste tires 14, which are elastic members, act to absorb and mitigate the explosion noise and vibration, it is possible to significantly reduce the explosion noise and vibration propagating around the blasting site. In addition, the present invention can minimize the vibration and noise transmitted through the cover member 13, by using a dust-proof alloy. In addition, by attaching a zerony tape (not shown) between the cover member 13 or the waste tire 14 or the cover member 13 and the waste tire 14, vibration and noise generated during blasting are prevented. Can be reduced.

(Second Embodiment)

3 is a perspective view showing a blasting mat according to a second embodiment of the present invention, Figure 4 is a cross-sectional view B-B of FIG. For reference, the same components as those of the first embodiment have the same reference numerals, and detailed descriptions of these components will be omitted.

The blasting mat according to the second embodiment is different from the first embodiment in that the dustproof rubber 16 is further configured. 3 and 4, the dustproof rubber 16 is further installed above and below the cover member 13, so that the cover member 13 and the weight members 10 and 11 can be generated. The noise and vibration can be further attenuated.

That is, since the cover member 13 and the weight members 10 and 11 are made of the same or similar material, the noise or vibration generated during explosion is transmitted to the weight members 10 and 11 through the cover member 13, or Further noise and vibration may be generated by the minute collision and friction between the lid member 13 and the weight members 10 and 11.

In view of this point, the present embodiment further provides the anti-vibration rubber 16 between the lid member 13 and the weight members 10 and 11 and below the lid member 13. Therefore, according to the present embodiment, noise and vibration due to friction between the weight member 10 and the lid member 13 can be effectively reduced.

(Third Embodiment)

5 is a perspective view illustrating a blasting mat according to a third embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along line C-C of FIG. For reference, the same components as those of the first and second embodiments have the same reference numerals, and detailed descriptions of these components are omitted.

The blasting mat according to the third embodiment differs from the above-described embodiment in the installation position of the weight members 10 and 11. That is, in the blasting mat according to the present embodiment, the weight members 10 and 11 are installed below the cover member 13 instead of the top, and the waste tire 14, which is an elastic member, is attached to the weight members 10. It is installed.

Since the blast mat of this configuration is a form in which the top of the cover member 13 is widely exposed, it is easy to put an additional weight on the cover member 13 to add the weight of the blast mat.

Therefore, according to the present embodiment, since it is easy to add additional weight to the blasting mat, it is possible to increase the weight of the blasting mat according to the expected explosion pressure to more effectively reduce the vibration and noise of the blasting mat caused by the explosion pressure.

While the invention has been shown and described with respect to certain preferred embodiments thereof, the invention is not limited to these embodiments, and has been claimed by those of ordinary skill in the art to which the invention pertains. It includes all the various forms of embodiments that can be implemented without departing from the spirit.

1 is a perspective view showing a blasting mat according to a first embodiment of the present invention,

2 is a cross-sectional view taken along line A-A of FIG.

3 is a perspective view showing a blasting mat according to a second embodiment of the present invention,

4 is a cross-sectional view taken along line B-B of FIG.

5 is a perspective view illustrating a blasting mat according to a third embodiment of the present invention;

6 is a cross-sectional view taken along the line C-C of FIG.

<Description of the symbols for the main parts of the drawings>

10: weight member 11: weight reinforcement

12 wire 13 cover member

14 waste tire 15 ring

16: dustproof rubber

Claims (4)

In the blasting mat for blasting vibration and noise reduction, A cover member covering a blasting section in which a plurality of blasting holes are formed; And And an elastic member attached to the lower edge of the cover member so that the explosion pressure generated when the explosives explode in the blasting hole and sand and explosion gas scattered together do not leak. The cover member is a blasting vibration and noise reduction blasting mat, characterized in that made of a dust-proof alloy to reduce the vibration and noise caused by the explosion to thermal energy. The method according to claim 1, The anti-vibration alloy is a blast vibration, characterized in that any one of Fe-Mn-based alloy, Mn-Cu-based alloy (Sonostone), Cr-Al-Fe-based alloy (Silentloy), Fe-Cr-Al-based alloy And blasting mat for noise reduction. The method according to claim 1 or 2, Blasting vibration and noise reduction blasting mat, characterized in that the cover member is further provided with a weight member for reducing the lifting phenomenon of the cover member due to the explosion pressure. The method according to claim 3, A blasting mat for blasting vibration and noise reduction, characterized in that dustproof rubber is further provided between the lid member and the weight member to suppress friction and vibration between the lid member and the weight member.

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