CN202939169U - Blasting experiment device used in soft rock roadway - Google Patents
Blasting experiment device used in soft rock roadway Download PDFInfo
- Publication number
- CN202939169U CN202939169U CN 201220696528 CN201220696528U CN202939169U CN 202939169 U CN202939169 U CN 202939169U CN 201220696528 CN201220696528 CN 201220696528 CN 201220696528 U CN201220696528 U CN 201220696528U CN 202939169 U CN202939169 U CN 202939169U
- Authority
- CN
- China
- Prior art keywords
- blasting
- steel cylinder
- rock
- experiment device
- simulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a blasting experiment device which is used in a soft rock roadway. The blasting experiment device comprises an elliptical steel cylinder for simulating restriction of rock masses surrounding the roadway, wherein a shock absorption rubber belt wraps the periphery of the outer wall of the elliptical steel cylinder, a solidification body for simulating rocks with different mechanical properties is poured in the elliptical steel cylinder, simulation blastholes are preformed in the solidification body, and millisecond electromagnetic detonators are arranged in the simulation blastholes; and a supporting seat is arranged on the lower part of the elliptical steel cylinder. According to the blasting experiment device, on-site various rocks are simulated, and sufficient strength similarity is provided, so that blasting rock breaking mechanisms of blastholes such as cut holes and auxiliary holes, post-blast rock movement characteristics and a blasting effect are studied according to movement rules and particle size distribution rules of broken blocks which are generated after a model is blast; and therefore, parameters required during driving blasting are determined, the blasting effect is improved, and the blasthole utilization rate is increased.
Description
Technical field
The utility model relates to the explosion experimental provision.
Background technology
In the mine laneway design, when running into soft-rock tunnel, larger pucking and the distortion of general generation so be designed to elliptical section, can effectively prevent pucking and metaboly.Due to the bad grasp of layout of elliptical section tunnel cut hole when explosion is tunneled, so need carry out pre-trial.If carry out explosion bulge test at underground mining stope, on-the-spot large-scale experiment expends excessive, is subjected to the impact of various factors after rock blasting, can't obtain the rule of blasting parameter and blasting result accurately.Can obtain the rule of blasting parameter and blasting result accurately by model test, when carrying out the laboratory study of elliptical section tunnel digging blasting, except requiring simulation material to have enough strength similarities with the various rocks in scene, and satisfy outside the Rock Mechanics Test And requirement, also to satisfy simultaneously under certain condition how much, power and boundary condition similar, thereby could determine the necessary parameter of driving explosion.
Therefore, be sought after a kind of analogue means for elliptial tunnel driving explosion experiment.
The utility model content
The utility model provides a kind of explosion experimental provision for soft-rock tunnel.
Structure of the present utility model is, a kind of explosion experimental provision for soft-rock tunnel, it comprises an oval steel cylinder that is used for simulation tunnel surrounding rock body constraint, be wound with the rubber strip for damping around the outer wall of oval steel cylinder, build the solidifying body of the different mechanical property rocks of simulation in oval steel cylinder, be shaped with in advance the artillery simulators holes in solidifying body, artillery simulators are equipped with a millisecond electromagnetic detonators in the hole; Be provided with supporting seat below oval steel cylinder.
During use, above-mentioned solidifying body preferentially adopts the fine grain concrete, and the concrete match ratio of fine grain should accurately configure according to the character of rock mass.
The utility model carries out powder charge by simulated charge amount and loaded constitution, parallel detonating after maintenance reaches design strength.Owing to having simulated on-the-spot various rock, have enough strength similarities, like this can be according to the characteristics of motion and the particle size distribution rule of fragment after model blasting, study shot hole blasting rock breaking mechanism, quick-fried rear sillar kinetic characteristic and the demolition effects such as keyhole, via hole, thereby determine the necessary parameter of driving explosion, improve demolition effect, improved blast hole utilizing factor.
Description of drawings
Fig. 1 is front view of the present utility model;
Fig. 2 is side view of the present utility model.
Marginal data, 1-rubber strip, the oval steel cylinder of 2-, 3-solidifying body, 4-artillery simulators holes, 5-millisecond electromagnetic detonators, 6-supporting seat.
Embodiment
A kind of explosion experimental provision for soft-rock tunnel as shown in Figure 1 and Figure 2, it comprises an oval steel cylinder 2 that is used for simulation tunnel surrounding rock body constraint, be wound with the rubber strip 1 for damping around the outer wall of oval steel cylinder, build the solidifying body 3 of the different mechanical property rocks of simulation in oval steel cylinder, be shaped with in advance artillery simulators hole 4 in solidifying body 3, be filled with millisecond electromagnetic detonators 5 in artillery simulators hole 4, be provided with supporting seat 6 below oval steel cylinder.
Claims (1)
1. explosion experimental provision that is used for soft-rock tunnel, it is characterized in that, it comprises an oval steel cylinder that is used for simulation tunnel surrounding rock body constraint, be wound with the rubber strip for damping around the outer wall of oval steel cylinder, build the solidifying body of the different mechanical property rocks of simulation in oval steel cylinder, be shaped with in advance the artillery simulators holes in solidifying body, artillery simulators are equipped with a millisecond electromagnetic detonators in the hole; Be provided with supporting seat below oval steel cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696528 CN202939169U (en) | 2012-12-14 | 2012-12-14 | Blasting experiment device used in soft rock roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696528 CN202939169U (en) | 2012-12-14 | 2012-12-14 | Blasting experiment device used in soft rock roadway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939169U true CN202939169U (en) | 2013-05-15 |
Family
ID=48323400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220696528 Expired - Fee Related CN202939169U (en) | 2012-12-14 | 2012-12-14 | Blasting experiment device used in soft rock roadway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939169U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308399A (en) * | 2013-05-29 | 2013-09-18 | 中国水电顾问集团华东勘测设计研究院 | Suitability evaluation test method of different support systems under effect of impact load |
| CN103411491A (en) * | 2013-07-31 | 2013-11-27 | 中国人民解放军后勤工程学院 | Oil-gas pipeline emergency maintenance working pit blasthole layout structure |
| CN108731563A (en) * | 2018-06-08 | 2018-11-02 | 成都泰测科技有限公司 | Be conducive to the explosion test equipment for repeating to test |
| CN109737842A (en) * | 2019-02-25 | 2019-05-10 | 吕梁学院 | A kind of tunnel blasting actual training device |
| CN111457803A (en) * | 2020-05-19 | 2020-07-28 | 华侨大学 | Underground space model circulating blasting test pre-buried blast hole and manufacturing method |
-
2012
- 2012-12-14 CN CN 201220696528 patent/CN202939169U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308399A (en) * | 2013-05-29 | 2013-09-18 | 中国水电顾问集团华东勘测设计研究院 | Suitability evaluation test method of different support systems under effect of impact load |
| CN103411491A (en) * | 2013-07-31 | 2013-11-27 | 中国人民解放军后勤工程学院 | Oil-gas pipeline emergency maintenance working pit blasthole layout structure |
| CN108731563A (en) * | 2018-06-08 | 2018-11-02 | 成都泰测科技有限公司 | Be conducive to the explosion test equipment for repeating to test |
| CN109737842A (en) * | 2019-02-25 | 2019-05-10 | 吕梁学院 | A kind of tunnel blasting actual training device |
| CN111457803A (en) * | 2020-05-19 | 2020-07-28 | 华侨大学 | Underground space model circulating blasting test pre-buried blast hole and manufacturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202939169U (en) | Blasting experiment device used in soft rock roadway | |
| CN105874299B (en) | It is provided with the charge tube of air gap and the rock blasting construction method using this charge tube | |
| CN103940309B (en) | A kind of method of underground blasting Cheng Jing | |
| CN103063092A (en) | Simulation experiment method for tunnel drivage blasting | |
| Himanshu et al. | Numerical simulation based approach for assessment of blast induced deformation pattern in slot raise excavation | |
| CN202939902U (en) | Teaching experiment apparatus capable of simulating common vertical shaft driving blasting | |
| WO2012015193A3 (en) | Ammonium nitrate fuel oil explosive filling case and method for rock blasting using same | |
| CN103745040A (en) | Analysis method for stability of strip mine side slope exploding process | |
| CN114279286A (en) | Multistage filling blasting dust-settling method for open-air iron ore | |
| Cevizci | A newly developed plaster stemming method for blasting | |
| Sazid et al. | Effective explosive energy utilization for engineering blasting–initial results of an inventive stemming plug, SPARSH | |
| CN102269544A (en) | One-end-closed cumulative blasting slotted pipe device | |
| CN202939170U (en) | Experimental device for stimulating blasting of roadway with horseshoe-shaped section | |
| CN202956051U (en) | Detonating device for simulating tunneling of vertical shaft with square cross section | |
| Long et al. | Influence of initiation point position on fragmentation by blasting in iron ore | |
| CN202956052U (en) | Experimental apparatus for simulating blasting of main haulage roadway in coal mine | |
| CN103063091B (en) | Deep-buried tunnel full-section millisecond blasting method | |
| CN202938853U (en) | Coal mining area tunnel simulation blasting experiment apparatus | |
| CN213021276U (en) | Explosive loading funnel for blasting | |
| CN202956053U (en) | Blasting experiment model of round roadway | |
| CN103644788A (en) | Power increasing powder charging method for coal mine roadway blasting cuthole | |
| Shi et al. | Study on dust removal technology of explosive water mist in drill and blast tunnelling | |
| CN206095571U (en) | Pyroclastic flow protective structure impact test device | |
| Qu et al. | Numerical simulation of parallel hole cut blasting with uncharged holes | |
| CN211977726U (en) | Big gun hole loaded constitution |
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 |
Granted publication date: 20130515 Termination date: 20181214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |