CN215725497U - Reduce peripheral loaded constitution of tunnel blasting vibration closely - Google Patents
Reduce peripheral loaded constitution of tunnel blasting vibration closely Download PDFInfo
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- CN215725497U CN215725497U CN202122433312.XU CN202122433312U CN215725497U CN 215725497 U CN215725497 U CN 215725497U CN 202122433312 U CN202122433312 U CN 202122433312U CN 215725497 U CN215725497 U CN 215725497U
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Abstract
The utility model discloses a peripheral charging structure for reducing close-range tunnel blasting vibration, and particularly relates to the technical field of tunnel blasting, wherein the peripheral charging structure comprises a blasting rock layer, wherein a blasting groove is formed in the blasting rock layer, a rock explosive cartridge is arranged in the blasting groove, and a buffer mechanism is arranged on one side of the blasting rock layer in a circumferential array manner; the buffer mechanism comprises a plurality of expansion bolts arranged on one side of the blasting rock layer, and a connecting ring block is arranged outside each expansion bolt. According to the utility model, by arranging the buffer mechanism, outward expansion impact force can act on the buffer energy-absorbing foamed aluminum to absorb energy and buffer, the sound-absorbing plate is compressed under stress, so that the non-Newtonian fluid laminate in the sound-absorbing plate plays a role in solidification, the blasting impact force absorbs energy and buffers in the buffer cylinder, the outward expansion of the blasting impact force is prevented, the blasting sound is slowed down, the buffer effect is played, the impact range is reduced, and the safety is better.
Description
Technical Field
The utility model relates to the technical field of tunnel blasting, in particular to a peripheral charging structure for reducing short-distance tunnel blasting vibration.
Background
With the development of railway construction and the progress of science and technology, tunnel excavation methods are developed rapidly, and more common excavation methods include a drilling and blasting method, a shield method and a tunneling machine method. The drilling and blasting method has strong adaptability to geological conditions and low excavation cost, and is particularly suitable for the construction of hard rock tunnels, broken rock tunnels and a large number of short tunnels, so blasting is needed for broken mining.
In the prior art, when blasting the tunnel, because need drill hole at rock crack department, implant explosion structure again, but impact force and sound are great among the explosion process, cause the flaring impact force great easily, are unfavorable for safety.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above defects in the prior art, embodiments of the present invention provide a peripheral charging structure for reducing short-distance tunnel blasting vibration, which prevents the explosion impact force from expanding outwards, slows down the explosion sound, plays a role in buffering, reduces the impact range, and has better safety by providing a buffering mechanism, so as to solve the problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: a peripheral charging structure for reducing short-distance tunnel blasting vibration comprises a blasting rock layer, wherein a blasting groove is formed in the blasting rock layer, rock explosive bags are arranged in the blasting groove, and a buffer mechanism is arranged on one side of the blasting rock layer in a circumferential array manner;
buffer gear is including setting up a plurality of expansion bolts of blasting rock layer one side, the expansion bolt outside is provided with the connecting ring piece, connecting ring piece one side is connected with the nut, connecting ring piece one side is provided with the buffer cylinder, the inside buffering energy-absorbing foamed aluminium that is provided with of buffer cylinder, buffering energy-absorbing foamed aluminium one side is provided with the abatvoix, the inside non-Newton fluid plywood that is provided with of abatvoix, abatvoix one side is provided with the buffering steel sheet.
In a preferred embodiment, an explosion-inducing component is connected to one side of the rock explosive package, and the explosion-inducing component is fixedly connected with the rock explosive package.
In a preferred embodiment, the connecting ring block is movably connected with the expansion bolt, and the nut is in threaded connection with the expansion bolt.
In a preferred embodiment, two sides of the sound-absorbing plate are fixedly connected with the buffer steel plate and the buffer energy-absorbing foamed aluminum in pairs respectively.
In a preferred embodiment, a connecting plate is arranged on one side of the buffer cylinder, and the connecting plate and the buffer cylinder are fixed by welding.
In a preferred embodiment, an inner wall scraping-proof barrel is arranged outside the rock explosive bag, an outer annular water bag is arranged outside the inner wall scraping-proof barrel, an outer wall scraping-proof barrel is arranged outside the outer annular water bag, an outer water expansion bag is arranged on one side of the outer wall scraping-proof barrel, and a side water bag is arranged on the other side of the rock explosive bag.
In a preferred embodiment, the inner wall scraping prevention cylinder is fixedly connected with the outer annular water bag, and the inner wall scraping prevention cylinder is made of a plastic material.
The utility model has the technical effects and advantages that:
1. by arranging the buffer mechanism, the outward expansion impact force can act on the buffer energy-absorbing foamed aluminum to absorb energy and buffer, the sound-absorbing plate is compressed under stress, so that the non-Newtonian fluid laminate inside the sound-absorbing plate can play a role in solidification, the blasting impact force can absorb energy and buffer in the buffer cylinder, the outward expansion of the blasting impact force is prevented, the blasting sound is weakened, the impact force is buffered, the impact range is reduced, and the safety is better;
2. put into the rock blast point with the outer loop water bag in, the outer wall is prevented scraping a section of thick bamboo and is prevented rock outer loop water bag to the inner wall is prevented scraping a section of thick bamboo and is prevented that rock explosive package and explosion initiating part from scraping the outer loop water bag, is difficult for causing the rock explosive package humidity when blasting like this, and when exploding, inside water plays all-round dust fall's effect when outer loop water bag, side water bag, the outer water bag that expands takes place to burst, and it is great to prevent the dust, avoids air pollution.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the overall cross-sectional structure of the present invention.
FIG. 3 is a schematic view of a cut-off structure of the joint of the buffering energy-absorbing foamed aluminum acoustic panel of the present invention.
Fig. 4 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.
The reference signs are: 1. blasting the rock layer; 2. a rock explosive charge; 3. an expansion bolt; 4. a connecting ring block; 5. a nut; 6. a buffer cylinder; 7. buffering energy-absorbing foamed aluminum; 8. a sound-absorbing panel; 9. a non-Newtonian fluid laminate; 10. an explosion initiating component; 11. a connecting plate; 12. an inner wall scraping-proof cylinder; 13. an outer ring water bag; 14. an outer wall anti-scraping cylinder; 15. an external water expansion bag; 16. a side water bag; 17. and (4) buffering the steel plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The peripheral charging structure for reducing short-distance tunnel blasting vibration as shown in the attached figures 1-4 comprises a blasting rock layer 1, wherein a blasting groove is formed in the blasting rock layer 1, rock blasting cartridges 2 are arranged in the blasting groove, and a buffer mechanism is arranged on one side of the blasting rock layer 1 in a circumferential array;
buffer gear is including setting up a plurality of expansion bolts 3 in 1 one side of blasting rock layer, expansion bolts 3 outside is provided with connecting ring piece 4, connecting ring piece 4 one side is connected with nut 5, connecting ring piece 4 one side is provided with buffer cylinder 6, the inside buffering energy-absorbing foamed aluminium 7 that is provided with of buffer cylinder 6, buffering energy-absorbing foamed aluminium 7 one side is provided with abatvoix 8, the inside non-Newton fluid plywood 9 that is provided with of abatvoix 8, abatvoix 8 one side is provided with buffering steel sheet 17.
As shown in fig. 2, an explosion initiating part 10 is connected to one side of the rock explosive package 2, and the explosion initiating part 10 is fixedly connected with the rock explosive package 2, so that the rock explosive package 2 can be exploded through the explosion initiating part 10, and thus, the rock can be exploded.
As shown in fig. 3, the connection ring 4 is movably connected with the expansion bolt 3, and the nut 5 is threadedly connected with the expansion bolt 3, so that the expansion bolt 3 can be driven into the rock, and can be inserted into the expansion bolt 3 through the connection ring 4, and then the connection ring 4 is fastened by rotating the nut 5.
As shown in fig. 3, two sides of the sound-absorbing plate 8 are fixedly connected with the buffer steel plate 17 and the buffer energy-absorbing foamed aluminum 7, so that the sound-absorbing plate 8 is more firmly connected with the buffer steel plate 17 and the buffer energy-absorbing foamed aluminum 7, and the energy-absorbing and buffering effects are better in the process of explosion energy absorption.
As shown in the attached drawings 1 and 3, a connecting plate 11 is arranged on one side of the buffer cylinder 6, and the connecting plate 11 and the buffer cylinder 6 are fixed in a welding mode, so that the connection between the connecting plate 11 and the buffer cylinder 6 is firmer, and the connecting plate 11 on the buffer cylinder 6 is guaranteed to play a fixing role.
As shown in fig. 2 and 4, an inner wall scraping prevention barrel 12 is arranged outside the rock explosive bag 2, an outer ring water bag 13 is arranged outside the inner wall scraping prevention barrel 12, an outer wall scraping prevention barrel 14 is arranged outside the outer ring water bag 13, an outer expanding water bag 15 is arranged on one side of the outer wall scraping prevention barrel 14, and a side water bag 16 is arranged on the other side of the rock explosive bag 2, so that the outer ring water bag 13 can be placed in a rock explosion point, the outer wall scraping prevention barrel 14 prevents rocks from scraping the water bag, the inner wall scraping prevention barrel 12 prevents the rock explosive bag 2 and the explosion-inducing component 10 from scraping the outer ring water bag 13, and when the rock explosive bag 2 explodes, the outer ring water bag 13, the side water bag 16 and the outer expanding water bag 15 play a role in reducing dust.
As shown in fig. 4, the inner wall scraping-proof cylinder 12 is fixedly connected with the outer ring water bag 13, and the inner wall scraping-proof cylinder 12 is made of plastic material, so that the inner wall scraping-proof cylinder 12 is more firmly connected with the outer ring water bag 13, and can be integrally implanted into the blast hole when being placed.
The working principle of the utility model is as follows: when using, the detonating part 10 ignites the rock explosive package 2 and explodes, the outer expanding impact force of detonating can be used on buffering energy-absorbing foamed aluminum 7 and carry out the energy-absorbing buffering, play the effect of inhaling the sound through abatvoix 8 simultaneously, and the compressed state also can appear in abatvoix 8 atress, thereby make its inside non-Newtonian fluid plywood 9 play the effect of solidifying, carry out further energy-absorbing again by buffering steel sheet 17, a plurality of expansion bolts 3 play fixed effect to connecting ring piece 4, connecting ring piece 4 plays fixed effect to buffer cylinder 6, can make the blasting impact force carry out the energy-absorbing buffering in buffer cylinder 6 like this.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the utility model can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (7)
1. The utility model provides a reduce peripheral loaded constitution of tunnel blasting vibration closely, includes blasting rock layer (1), its characterized in that: a blasting groove is formed in the blasting rock layer (1), rock explosive bags (2) are arranged in the blasting groove, and a buffer mechanism is arranged on one side of the blasting rock layer (1) in a circumferential array manner;
buffer gear is including setting up a plurality of expansion bolts (3) of blasting rock layer (1) one side, expansion bolt (3) outside is provided with connecting ring piece (4), connecting ring piece (4) one side is connected with nut (5), connecting ring piece (4) one side is provided with buffer cylinder (6), buffer cylinder (6) inside is provided with buffering energy-absorbing foam aluminium (7), buffering energy-absorbing foam aluminium (7) one side is provided with abatvoix (8), abatvoix (8) inside is provided with non-Newton fluid plywood (9), abatvoix (8) one side is provided with buffering steel sheet (17).
2. A perimeter-charging configuration to reduce near-field tunnel blast vibrations as defined in claim 1, wherein: one side of the rock explosive bag (2) is connected with an explosion-leading part (10), and the explosion-leading part (10) is fixedly connected with the rock explosive bag (2).
3. A perimeter-charging configuration to reduce near-field tunnel blast vibrations as defined in claim 1, wherein: the connecting ring block (4) is movably connected with the expansion bolt (3), and the nut (5) is in threaded connection with the expansion bolt (3).
4. A perimeter-charging configuration to reduce near-field tunnel blast vibrations as defined in claim 1, wherein: and two sides of the sound-absorbing plate (8) are respectively and fixedly connected with the buffer steel plate (17) and the buffer energy-absorbing foamed aluminum (7) in pairs.
5. A perimeter-charging configuration to reduce near-field tunnel blast vibrations as defined in claim 1, wherein: a connecting plate (11) is arranged on one side of the buffer cylinder (6), and the connecting plate (11) and the buffer cylinder (6) are fixed in a welding mode.
6. A perimeter-charging configuration to reduce near-field tunnel blast vibrations as defined in claim 1, wherein: the rock explosive bag is characterized in that an inner wall scraping-proof cylinder (12) is arranged outside the rock explosive bag (2), an outer ring water bag (13) is arranged outside the inner wall scraping-proof cylinder (12), an outer wall scraping-proof cylinder (14) is arranged outside the outer ring water bag (13), an outer water expanding bag (15) is arranged on one side of the outer wall scraping-proof cylinder (14), and a side water bag (16) is arranged on the other side of the rock explosive bag (2).
7. A perimeter-charging configuration to reduce near-field tunnel blast vibrations as defined in claim 6, wherein: the inner wall scraping-proof cylinder (12) is fixedly connected with the outer ring water bag (13), and the inner wall scraping-proof cylinder (12) is made of a plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122433312.XU CN215725497U (en) | 2021-10-09 | 2021-10-09 | Reduce peripheral loaded constitution of tunnel blasting vibration closely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122433312.XU CN215725497U (en) | 2021-10-09 | 2021-10-09 | Reduce peripheral loaded constitution of tunnel blasting vibration closely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215725497U true CN215725497U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122433312.XU Active CN215725497U (en) | 2021-10-09 | 2021-10-09 | Reduce peripheral loaded constitution of tunnel blasting vibration closely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215725497U (en) |
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2021
- 2021-10-09 CN CN202122433312.XU patent/CN215725497U/en active Active
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