CN207035966U - A kind of explosion shock dropping buffers band structure - Google Patents
A kind of explosion shock dropping buffers band structure Download PDFInfo
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- CN207035966U CN207035966U CN201720819637.2U CN201720819637U CN207035966U CN 207035966 U CN207035966 U CN 207035966U CN 201720819637 U CN201720819637 U CN 201720819637U CN 207035966 U CN207035966 U CN 207035966U
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- area
- explosion
- main blast
- buffer strip
- hole
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Abstract
The utility model discloses a kind of explosion shock dropping to buffer band structure, including main blast area, main blast hole, buffer strip, dashpot, presplit blasting area, pre- ceasma and secondary blasting hole；Main blast hole is offered in the main blast area；Pre- ceasma is offered in the presplit blasting area；Buffer strip is provided between the main blast area and presplit blasting area；Dashpot is offered in the buffer strip；The bottom of the dashpot offers secondary blasting hole.The utility model is disposed with presplit blasting area, buffer strip and main blast area, and detonated successively in explosion, strengthen the buffering shock dropping effect in presplit blasting area by buffer strip, the aperture of blast hole and fill out dose in the utility model presplit blasting area, buffer strip and main blast area and increase successively, the effect of reinforcement is played in the region of explosion to the region of first explosion afterwards, and the effect of buffering energy-absorbing is played in the region of first explosion to the region of rear explosion, so as to strengthen the protection effect of side slope while demolition effect is ensured.
Description
Technical field
Blasting technique field is the utility model is related to, specially a kind of explosion shock dropping buffering band structure.
Background technology
With the continuous development of China's open-pit mining techniques, large-scale and super-huge surface mine is in brown, coloured and building materials
Industry is continuously available exploitation, and mining depth is increasing.For big-and-middle-sized surface mine, onepull explosive payload may reach
To tens tons, or even hundreds of tons, these explosions can all produce blasting effect, and the stability to slope rock mass brings certain shadow
Ring, the explosion of particularly neighbouring side slope, formation to last slope and stably have a major impact.
Presplit blasting is the maximally effective Controlled blasting technique of neighbouring slope blasting, is characterized in pre- ceasma using not coupling
Charge structure is closed, loads a small amount of explosive, pre- ceasma detonates in advance or pre- ceasma is detonated prior to main blast hole by elementary errors technology,
To form crack, the influence of cut-off production resettlement side slope, but simple presplit blasting when burst region is close to building, its
Shock dropping effect is limited, limits the progress of construction.
Then, inventor in view of this, adhere to the relevant industries for many years it is abundant design and develop and the experience of actual fabrication,
Improvement is studied for existing structure and missing, there is provided a kind of explosion shock dropping buffers band structure, is had more more to reach
Add the purpose of practical value.
The content of the invention
The purpose of this utility model is to provide a kind of explosion shock dropping buffering band structure, to solve to carry in above-mentioned background technology
When burst region is close to building, its shock dropping effect is limited for the simple presplit blasting gone out, and the progress for limiting construction is asked
Topic.
To achieve the above object, the utility model provides following technical scheme：A kind of explosion shock dropping buffers band structure, including
Main blast area, main blast hole, buffer strip, dashpot, presplit blasting area, pre- ceasma and secondary blasting hole；
Main blast hole is offered in the main blast area；Pre- ceasma is offered in the presplit blasting area；The main explosion
Buffer strip is provided between area and presplit blasting area；Dashpot is offered in the buffer strip；The bottom of the dashpot offers
Secondary blasting hole.
Preferably, the dashpot is provided with three altogether, and the depth of both sides dashpot is more than the depth of intermediate buffering groove.
Preferably, the aperture in the secondary blasting hole is less than the aperture of main blast hole.
Compared with prior art, the utility model has the advantages that：
1. the utility model is disposed with presplit blasting area, buffer strip and main blast area, and in explosion successively
Detonation, strengthen the buffering shock dropping effect in presplit blasting area, further destruction caused by mitigating explosion side slope by buffer strip.
2. the aperture of blast hole and fill out dose in the utility model presplit blasting area, buffer strip and main blast area and increase successively
Add, the effect of reinforcement is played in the region of rear explosion to the region of first explosion, and the region of first explosion is played to the region of rear explosion
The effect of buffering energy-absorbing, so as to strengthen the protection effect of side slope while demolition effect is ensured.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model structure diagram.
In figure：1st, main blast area, 2, main blast hole, 3, buffer strip, 4, dashpot, 5, presplit blasting area, 6, pre- ceasma, 7,
Secondary blasting hole.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of explosion shock dropping buffers band structure, including
Main blast area 1, main blast hole 2, buffer strip 3, dashpot 4, presplit blasting area 5, pre- ceasma 6 and secondary blasting hole 7；
Main blast hole 2 is offered in main blast area 1；Pre- ceasma 6 is offered in presplit blasting area 5；Main blast area 1 and presplitting
Buffer strip 3 is provided between blast area 5；Dashpot 4 is offered in buffer strip 3；The bottom of dashpot 4 offers secondary blasting hole 7.
In above-described embodiment, specifically, dashpot 4 is provided with three altogether, and the depth of both sides dashpot 4 is more than intermediate buffering
The depth of groove 4, the dashpot 4 being just staggered are advantageous to improve the energy-absorbing effect of buffer strip 3.
In above-described embodiment, specifically, the aperture in secondary blasting hole 7 is less than the aperture of main blast hole 2, secondary blasting hole 7
Complemented each other with main blast hole 2, play a part of assistant reinforcement demolition effect.
Operation principle：
Explosion shock dropping buffering band structure is disposed with presplit blasting area 5, buffer strip 3 and main blast area 1, is detonating
When, detonated successively by elementary errors technology, the presplit blasting area 5 detonated first forms crack, separates ensuing blast side slope
Influence, after the explosion of presplit blasting area 5, to buffer strip 3 carry out explosion, due in buffer strip 3 secondary blasting hole 7 fill out dose compared with
It is small, reinforcement explosion is carried out to buffer strip 3 by the main blast area 1 of last explosion, meanwhile, explosion forms the buffer strip in crack
Energy-absorbing buffering is played a part of in the explosion of 3 pairs of main blast areas, with reference to presplit blasting area 5, strengthens shock dropping buffering effect, so as to improve
The protection effect of side slope.
The standardized element that the utility model uses can commercially, shaped piece according to specification and accompanying drawing
Record can carry out customized, the specific connected mode of each part is using bolt ripe in the prior art, rivet, weldering
The conventional meanses such as connect, paste, part using model conventional in the prior art, will not be described in detail herein.
In summary, general principle, principal character and advantage of the present utility model has been shown and described above.The industry
Technical staff it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification only
It is to illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model also has
Various changes and modifications, these changes and improvements are both fallen within claimed the scope of the utility model.The requires of the utility model
Protection domain is defined by appended claims and its effect thing.
Claims (3)
1. a kind of explosion shock dropping buffers band structure, it is characterised in that：Including
Main blast area, main blast hole, buffer strip, dashpot, presplit blasting area, pre- ceasma and secondary blasting hole；
Main blast hole is offered in the main blast area；Pre- ceasma is offered in the presplit blasting area；The main blast area with
Buffer strip is provided between presplit blasting area；Dashpot is offered in the buffer strip；The bottom of the dashpot offers auxiliary
Blast hole.
2. explosion shock dropping according to claim 1 buffers band structure, it is characterised in that：The dashpot is provided with three altogether,
And the depth of both sides dashpot is more than the depth of intermediate buffering groove.
3. explosion shock dropping according to claim 1 buffers band structure, it is characterised in that：The aperture in the secondary blasting hole is small
In the aperture of main blast hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819637.2U CN207035966U (en) | 2017-07-07 | 2017-07-07 | A kind of explosion shock dropping buffers band structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819637.2U CN207035966U (en) | 2017-07-07 | 2017-07-07 | A kind of explosion shock dropping buffers band structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207035966U true CN207035966U (en) | 2018-02-23 |
Family
ID=61465901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720819637.2U Active CN207035966U (en) | 2017-07-07 | 2017-07-07 | A kind of explosion shock dropping buffers band structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207035966U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144194A (en) * | 2017-07-07 | 2017-09-08 | 贵州大学 | A kind of explosion shock dropping buffers band structure |
| CN110926287A (en) * | 2019-12-20 | 2020-03-27 | 深圳市蛇口招商港湾工程有限公司 | Cutting earth and rock excavation blasting method |
-
2017
- 2017-07-07 CN CN201720819637.2U patent/CN207035966U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144194A (en) * | 2017-07-07 | 2017-09-08 | 贵州大学 | A kind of explosion shock dropping buffers band structure |
| CN110926287A (en) * | 2019-12-20 | 2020-03-27 | 深圳市蛇口招商港湾工程有限公司 | Cutting earth and rock excavation blasting method |
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