CN202939170U - Experimental device for stimulating blasting of roadway with horseshoe-shaped section - Google Patents
Experimental device for stimulating blasting of roadway with horseshoe-shaped section Download PDFInfo
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- CN202939170U CN202939170U CN 201220696567 CN201220696567U CN202939170U CN 202939170 U CN202939170 U CN 202939170U CN 201220696567 CN201220696567 CN 201220696567 CN 201220696567 U CN201220696567 U CN 201220696567U CN 202939170 U CN202939170 U CN 202939170U
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- steel cylinder
- horseshoe
- blasting
- shaped steel
- stimulating
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Abstract
The utility model discloses an experimental device for stimulating blasting of a roadway with a horseshoe-shaped section. The device comprises a horseshoe-shaped steel cylinder for stimulating constraining force of rock mass around the roadway, wherein an outer wall of the horseshoe-shaped steel cylinder is wound by rubber belts for absorbing shock; a solidified body for stimulating rocks with different mechanical properties is poured in the horseshoe-shaped steel cylinder, and simulative blastholes are prefabricated in the solidified body; the length of the horseshoe-shaped steel cylinder is three times the depth of the simulative blastholes; and a cylinder bottom is arranged at the bottom of the horseshoe-shaped steel cylinder. When maintained to meet the designed strength requirement, the experimental device is charged with powder according to a simulative explosive payload and a loaded structure, so that parallel initiation blasting is realized; and the solidified body can stimulate different joints, fractures and interlayers in the rocks, so that a simulation experiment is relatively similar to onsite blasting, and thus an accurate blasting parameter and statistical data of a blasting effect can be obtained.
Description
Technical field
The utility model relates to a kind of experimental simulation device for the rock blasting experiment.
Background technology
In the Soft Rock Coal Mine exploitation, main main haulage roadway all designs in soft formation, and soft-rock tunnel easily produces the pucking phenomenon, and the service year limit for length, so mostly be designed to u-shaped cross-section.When the tunneling construction explosion, in order to increase blasting efficiency and demolition effect, need carry out u-shaped cross-section explosion research.The model investigation method, as the married scientific research methods of theory and practice, is a kind of indispensable research means.That physical experiments has advantages of is directly perceived, with a high credibility, cost is relatively low and do not delay produced on-site.Therefore, when design simulation driving explosion experimental provision, need to take into full account the impact of various factors according to the similarity of similitude law of blast and material, the model test result can be reflected more accurately on-the-spot actual.
The utility model content
The utility model provides a kind of experimental provision of simulating the u-shaped cross-section tunnel blasting, to obtain a series of blasting parameters accurately and statistical effect data, improves its experiment accuracy.
To achieve these goals, structure of the present utility model is, a kind of experimental provision of simulating the u-shaped cross-section tunnel blasting, it comprises that one for simulating the shape of a hoof steel cylinder of tunnel surrounding rock body constraint, be wound with the rubber strip for damping around the outer wall of shape of a hoof steel cylinder, build the solidifying body of the different mechanical property rocks of simulation in shape of a hoof steel cylinder, be prefabricated with the artillery simulators hole in solidifying body; The length delivery of shape of a hoof steel cylinder is intended 3 times of blast hole depth; At the bottom of the bottom design of shape of a hoof steel cylinder has tin.
The utility model, after maintenance reaches design strength, carries out powder charge by simulated charge amount and loaded constitution, and detonating gets final product parallel (the big gun hole is parallel with ground level).Due to the solidifying body arranged can simulation rock in different joint, crack or interlayers, make simulation test more similar in appearance to on-the-spot explosion, thereby can obtain blasting parameter and statistical effect data accurately.
The accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is side view of the present utility model.
In figure: the 1-rubber strip, 2-shape of a hoof steel cylinder, the 3-solidifying body, 4-artillery simulators hole, the 5-flexible material, at the bottom of the 6-cylinder.
Embodiment
As shown in Figure 1 and Figure 2, the experimental provision of simulation u-shaped cross-section tunnel blasting of the present utility model, comprise that one for simulating the shape of a hoof steel cylinder 2 of tunnel surrounding rock body constraint, be wound with the rubber strip 1 for damping around the outer wall of shape of a hoof steel cylinder 2, build the solidifying body 3 of the different mechanical property rocks of simulation in shape of a hoof steel cylinder 2, be prefabricated with artillery simulators hole 4 in solidifying body 3; The length of shape of a hoof steel cylinder 2 is got 3 times of artillery simulators hole 4 degree of depth; At the bottom of the bottom design of shape of a hoof steel cylinder 2 has tin 6.
During enforcement: above-mentioned solidifying body 4 should adopt the fine grain concrete, and the concrete match ratio of fine grain should accurately configure according to the character of rock mass.Contain a certain amount of flexible material 5 in above-mentioned solidifying body 4, in order to joints different in simulation rock, crack or interlayer.Flexible material 5 should strictly observe blasting similarity while making the joint, crack.
Claims (1)
1. an experimental provision of simulating the u-shaped cross-section tunnel blasting, it is characterized in that, it comprises that one for simulating the shape of a hoof steel cylinder of tunnel surrounding rock body constraint, be wound with the rubber strip for damping around the outer wall of shape of a hoof steel cylinder, build the solidifying body of the different mechanical property rocks of simulation in shape of a hoof steel cylinder, be prefabricated with the artillery simulators hole in solidifying body; The length delivery of shape of a hoof steel cylinder is intended 3 times of blast hole depth; At the bottom of the bottom design of shape of a hoof steel cylinder has tin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696567 CN202939170U (en) | 2012-12-14 | 2012-12-14 | Experimental device for stimulating blasting of roadway with horseshoe-shaped section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696567 CN202939170U (en) | 2012-12-14 | 2012-12-14 | Experimental device for stimulating blasting of roadway with horseshoe-shaped section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939170U true CN202939170U (en) | 2013-05-15 |
Family
ID=48323401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220696567 Expired - Fee Related CN202939170U (en) | 2012-12-14 | 2012-12-14 | Experimental device for stimulating blasting of roadway with horseshoe-shaped section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939170U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107798985A (en) * | 2017-11-16 | 2018-03-13 | 武汉理工大学 | A kind of tunnel blasting demonstration model for teaching |
| CN109653751A (en) * | 2019-01-09 | 2019-04-19 | 济南城建集团有限公司 | A kind of use wears city expressway method for tunnel construction under yielding rubber ledge |
| CN109737842A (en) * | 2019-02-25 | 2019-05-10 | 吕梁学院 | A kind of tunnel blasting actual training device |
-
2012
- 2012-12-14 CN CN 201220696567 patent/CN202939170U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107798985A (en) * | 2017-11-16 | 2018-03-13 | 武汉理工大学 | A kind of tunnel blasting demonstration model for teaching |
| CN109653751A (en) * | 2019-01-09 | 2019-04-19 | 济南城建集团有限公司 | A kind of use wears city expressway method for tunnel construction under yielding rubber ledge |
| CN109737842A (en) * | 2019-02-25 | 2019-05-10 | 吕梁学院 | A kind of tunnel blasting actual training device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20181214 |