CN212843224U - Reduce loaded constitution of blasting vibration - Google Patents
Reduce loaded constitution of blasting vibration Download PDFInfo
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- CN212843224U CN212843224U CN202021264688.1U CN202021264688U CN212843224U CN 212843224 U CN212843224 U CN 212843224U CN 202021264688 U CN202021264688 U CN 202021264688U CN 212843224 U CN212843224 U CN 212843224U
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Abstract
The utility model discloses a charge structure for reducing blasting vibration, which can weaken the initial pressure peak value acting on the bottom of a blast hole during blasting by arranging an air layer, effectively reduce the blasting vibration intensity and better protect the rock mass at the bottom of the hole; through setting up the buffering slag blanket and spreading the medium as the energy, can effectively reduce the explosive energy and spread blast hole bottom rock mass, reduce the blasting vibration, cause the destruction to blast hole bottom rock mass when avoiding blasting.
Description
Technical Field
The utility model belongs to the technical field of the mine blasting, especially, relate to a loaded constitution that reduces blasting vibration.
Background
Blasting is a technique that utilizes the effects of compression, loosening, destruction, throwing and killing of explosives in air, water, earth and stone media or objects due to explosion to achieve the expected purpose. When the explosive package or explosive charge explodes in earth and stone medium or structure, the earth and stone medium or structure generates the phenomena of compression, deformation, damage, loosening and throwing, and the explosive package or explosive charge is mainly used for earth and stone engineering, the demolition of metal buildings and structures and the like. The range of the study included: the properties and the using method of explosives and firesets are characterized in that the explosive effect of explosive charge in various media, the contact blasting and the non-contact blasting of the explosive charge on targets, the organization and implementation of various blasting operations are realized, when the surface mine is blasted, the conventional coupled explosive charge structure can generate great blasting vibration while crushing ore rocks, and the initial blasting pulse pressure is great, so that the energy of the explosive acts on the rock at the bottom of a hole to excessively crush the rock, the rock at the bottom of the hole cannot be protected, and the energy waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the explosive charging structure capable of preventing explosive energy from acting on the hole bottom rock to excessively crush the hole bottom rock and protecting the hole bottom rock is provided.
The utility model adopts the technical scheme as follows:
a charge structure for reducing blasting vibration is characterized in that; including the big gun hole, inside from last packer layer, explosive layer, air bed and the buffering slag layer of being equipped with down in proper order of big gun hole, be equipped with the detonator in the explosive layer.
The further technical scheme is as follows: the detonator is located at the bottom of the explosive layer and is connected with the detonating tube, and the detonating tube extends to the outside along the inside of the blast hole.
The further technical scheme is as follows: the air bed includes the interlayer, the interlayer is cylindrical structure and inside cavity, the interlayer top contacts with the explosive layer, interlayer bottom and buffering slag blanket contact.
The further technical scheme is as follows: the interlayer is made of plastic.
The further technical scheme is as follows: the density of the buffer slag layer is more than 2.3 times of the density of the blasted rock mass.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
in the utility model, the initial pressure peak value acting on the bottom of the blast hole can be weakened by arranging the air layer during blasting, so that the blasting vibration intensity can be effectively reduced, and the rock mass at the bottom of the hole can be well protected;
through setting up the buffering slag blanket and spreading the medium as the energy, can effectively reduce the explosive energy and spread blast hole bottom rock mass, reduce the blasting vibration, cause the destruction to blast hole bottom rock mass when avoiding blasting.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1, a charge structure for reducing blasting vibration is characterized in that; including big gun hole 1, 1 insides of big gun hole are equipped with packer layer 2, explosive layer 3, air bed 4 and buffering slag blanket 5 from last to down in proper order, be equipped with detonator 6 in the explosive layer 3.
In the utility model, the initial pressure peak value acting on the bottom of the blast hole 1 can be weakened by arranging the air layer 4 during blasting, so that the blasting vibration intensity can be effectively reduced, and the rock mass at the bottom of the hole can be well protected;
through setting up buffering slag blanket 5 as energy propagation medium, can effectively reduce the explosive energy and spread 1 bottom rock mass of big gun hole, reduce the blasting vibration, cause the destruction to 1 bottom rock mass of big gun hole when avoiding blasting.
The detonator 6 is positioned at the bottom of the explosive layer 3, the detonator 6 is connected with a detonating tube 7, and the detonating tube 7 extends to the outside along the inside of the blast hole 1; a detonator 6 is disposed at the bottom of the explosive layer 3 and extends through a detonator 7 to the orifice for initiation.
The air layer 4 comprises an interlayer 8, the interlayer 8 is of a cylindrical structure and is hollow inside, the top of the interlayer 8 is in contact with the explosive layer 3, and the bottom of the interlayer 8 is in contact with the buffer slag layer 5; the interlayer 8 can support the explosive layer 3
The interlayer 8 is made of plastic.
The density of the buffer slag layer 5 is more than 2.3 times of the density of a blasted rock body, the buffer slag layer 5 can be formed by iron slag or slag made of other materials, according to the wave impedance theory, the iron slag with higher density is used as an energy propagation medium, according to the wave impedance theory, the high-density iron slag can effectively prevent the explosive energy from diffusing to the bottom of the blast hole 1 due to the density of the high-density iron slag and the density of the sonic velocity ratio explosive about 2 times, the damage range of the explosive energy to the rock at the bottom of the blast hole 1 is reduced, the blasting vibration intensity is reduced, and the effect of protecting surrounding rock at the bottom of the blast hole 1 is achieved.
The above description is only the preferred embodiment of the present invention.
Claims (5)
1. A charge structure for reducing blasting vibration is characterized in that; including big gun hole (1), big gun hole (1) is inside from last to being equipped with packer layer (2), explosive layer (3), air bed (4) and buffering slag blanket (5) down in proper order, be equipped with detonator (6) in explosive layer (3).
2. A charge configuration to reduce vibration in a blast as defined in claim 1 wherein: the detonator (6) is located at the bottom of the explosive layer (3), the detonator (6) is connected with a detonating tube (7), and the detonating tube (7) extends to the outside along the inside of the blast hole (1).
3. A charge configuration to reduce vibration in a blast as defined in claim 1 wherein: air bed (4) include interlayer (8), interlayer (8) are cylindrical structure and inside cavity, interlayer (8) top and explosive layer (3) contact, interlayer (8) bottom and buffer slag layer (5) contact.
4. A charge configuration to reduce vibration in a blast as defined in claim 3 wherein: the interlayer (8) is made of plastic.
5. A charge configuration to reduce vibration in a blast as defined in claim 1 wherein: the density of the buffer slag layer (5) is more than 2.3 times of the density of the blasted rock mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021264688.1U CN212843224U (en) | 2020-07-02 | 2020-07-02 | Reduce loaded constitution of blasting vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021264688.1U CN212843224U (en) | 2020-07-02 | 2020-07-02 | Reduce loaded constitution of blasting vibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212843224U true CN212843224U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021264688.1U Active CN212843224U (en) | 2020-07-02 | 2020-07-02 | Reduce loaded constitution of blasting vibration |
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| CN (1) | CN212843224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115406319A (en) * | 2022-08-26 | 2022-11-29 | 核工业南京建设集团有限公司 | Bottom air spaced charging structure and charging method |
-
2020
- 2020-07-02 CN CN202021264688.1U patent/CN212843224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115406319A (en) * | 2022-08-26 | 2022-11-29 | 核工业南京建设集团有限公司 | Bottom air spaced charging structure and charging method |
| CN115406319B (en) * | 2022-08-26 | 2023-11-24 | 核工业南京建设集团有限公司 | Bottom air spaced charging structure and charging method |
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