CN106290016B - A kind of underground air impact disaster experimental rig - Google Patents
A kind of underground air impact disaster experimental rig Download PDFInfo
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- CN106290016B CN106290016B CN201610941014.2A CN201610941014A CN106290016B CN 106290016 B CN106290016 B CN 106290016B CN 201610941014 A CN201610941014 A CN 201610941014A CN 106290016 B CN106290016 B CN 106290016B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/307—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The present invention relates to underground airs to impact disaster, proposes a kind of experimental rig, including phantom frame, simulates tunnel, loading device, experiment test device；Model framework is made of pedestal, lateral wall interior panel and top beam, wherein pedestal fixed beam of the top beam as the hydraulic jack of loading device；Simulation tunnel is made of two sections of tempered glass simulation tunnels, installs air-impingement protection facility between two sections of tempered glass simulation tunnels, tempered glass simulates tunnel and uses flanged joint；Loading device is made of console, hydraulic jack, fluid pressure line；Experiment test device is made of sensor, data collector and computer, and the parameter for causing tunnel air-shock wave is caving using experiment test device acquisition simulation country rock；The experimental rig facilitates research mine face surrounding rock and is caving the parameter for leading to underground air shock wave, and to avoid underground air impact from optimizing mining Design test, analysis weakens the method for air-shock wave and the reasonability of protection facility.
Description
Technical field
The invention belongs to a kind of underground airs to impact disaster experimental rig, for simulating underground air shock wave, study well
Lower air-impingement parameter and the reasonability of protective equipment optimization.
Background technique
A kind of main mine disaster as caused by mine large area erecting dense individual props or bursting work of underground air shock wave,
This kind of disaster has process of short duration, the characteristics of breaking with tremendous force, forms mine shake and high-speed air impact wave in underground, causes personnel
Injures and deaths and property loss.
The air-impingement disaster caused by erecting dense individual props is typically employed in stope sill at present or buffer layer is reserved in bottom
Method cut down impact disaster；The prevention for the air-impingement that bursting work is formed is mainly using increase safe distance；Underground
How air-impingement disaster effectively takes precautions against, and needing a kind of experimental rig analog study mine goaf country rock to be caving causes underground empty
The parameter of gas impact, to avoid underground air shock wave, assay optimization mining Design, grasp the method for weakening air-shock wave and
Rationally design protection facility.
Summary of the invention
In order to overcome the shortcomings of present in existing experimental rig, the invention reside in provide a kind of underground air impact disaster examination
Experiment device.
To achieve the above object, the technical scheme is that：
A kind of underground air impact disaster experimental rig simulates tunnel, loading device, protection facility, examination by phantom frame
Test test device composition.
Phantom frame is made of pedestal, lateral wall interior panel, sealing strip and top beam, and wherein top beam is as load hydraulic jack
Pedestal fixed beam.
Simulation tunnel is made of three sections of tempered glass simulation tunnels, and intermediate tempered glass simulation tunnel installation air-impingement is protected
Facility is protected, two sides tempered glass simulates tunnel installation test sensor, and tempered glass simulates tunnel and uses flanged joint.
Loading device is made of console, hydraulic jack, fluid pressure line；By hydraulic jack loading simulation stratum,
Realize that simulation goaf collapses.
Experiment test device is adopted by strain gauge, baroceptor, microseismic sensors, sensor of dust concentration, data
Storage and computer composition are caving the parameter for causing tunnel air-shock wave using experiment test device acquisition simulation country rock.
It is needed to select simulation protection facility according to experimental design, there are three types of forms for simulation protection facility：
1. rigidity closing partition wall makes simulation material wall (material according to geometric dimension and intensity in simulation tunnel
Stone masonry panel, thickness is greater than 0.8m and insertion country rock depth is greater than 0.3m, and wall is greater than apart from air-impingement occurring source distance
30m is equipped with peephole on wall top, and lower part is equipped with drainage hole).
2. hole pattern flexible bulkhead, according to geometric dimension and intensity, production simulation flexible bulkhead is (straight in simulation tunnel
Diameter is 0.2m-0.3m, and a series of columns coupled with cable wire, thrust forelock form)；Air-impingement wavefront stress impairs
Effect depends on the ratio a=S0/S of hole pattern, and wherein S0 and S is respectively the freely through area of shock wave and drift section product.
3. water-filled vessel partition wall is built with the plastic container of water-filling, both ends are suspended on simulation back, covering simulation
Drift section.
A kind of operating method of underground air impact disaster experimental rig：
Step 1：It is familiar with the geological hydrology and Mining technology condition of exploitation ore body, according to the data being collected into, selects similar
Physical modeling materials, the similar physics material mixture ratio on design simulation stratum.
Step 2：Production simulated formation material is matched according to similar physical modeling materials, simulation is laid in phantom frame
Earth formation material, and be compacted；The production of other simulated formations is successively carried out, ventilation is dried.
Step 3：The ore body within the scope of the backplate excavation design of simulation ore body side is dismantled, side guard plate and sealing strip are installed.
Step 4：Debugging and test data collection device check the monitoring sensor of arrangement in simulation tunnel, and by data line
Access computer is debugged and is tested.
Step 5：Bearing plate is installed, Hydraulic Jack is pressed into value with being applied to design by the hydraulic pump of console.
Step 6：Goaf collapsing or bursting work are simulated, monitoring causes the air-impingement parameter in simulation tunnel.
The beneficial technical effect of the present invention lies in：
1. the experimental rig helps to study mine face surrounding rock and is caving the parameter for leading to underground air shock wave, 2. to keep away
Exempt from underground air shock wave, 3. optimizing exploitation design experiment grasps the optimization for weakening the method and protection facility of air-shock wave.
Detailed description of the invention
Fig. 1 underground air impacts disaster experimental rig facade arrangement schematic diagram
Fig. 2 underground air impacts disaster experimental rig plan view
Fig. 3 increases dead zone range plane arrangement schematic diagram
In figure：The stratum 1- console 2- phantom frame 3- hydraulic jack 4- simulation material 5- ore body 6- bearing plate
7- pedestal 8- computer 9- data collector 10- simulates tunnel 11- strain gauge 12- baroceptor 13- microseism
Sensor 14- sensor of dust concentration 15- flange 16- simulates protection facility 17- armorplate glass 18- connection screw thread
19- lengthened plate 20- backplate
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
1. simulation goaf, which collapses, causes air-impingement parameter testing
Step 1：It is familiar with the geological hydrology and Mining technology condition of exploitation ore body, according to the data being collected into, selects similar
Physical modeling materials, the similar physical modeling materials proportion on design simulation stratum.
Step 2：Production stratum simulation material 4 is matched according to similar physical modeling materials, is laid with ground in phantom frame 2
Layer simulation material 4, and be compacted；The production of other simulated formations is successively carried out, ventilation is dried.
Step 3：The ore body 5 within the scope of 20 excavation design of backplate of simulation ore body side is dismantled, side guard plate 20 and close is installed
Strip of paper used for sealing.
Step 4：Debugging and test data collection device 9, check the monitoring sensor 12 arranged in simulation tunnel 10,13,
14, and data line access computer 8 is debugged and tested.
Step 5：Bearing plate 6 is installed, is pressed 3 pressure of hydraulic jack with being applied to design by the hydraulic pump of console 1
Value.
Step 6：It simulates goaf to collapse, monitoring causes the air-impingement parameter in simulation tunnel 10.
2. simulating the protection facility optimization of underground air impact disaster
Step 1：It is familiar with the geological hydrology and Mining technology condition of exploitation ore body, according to the data being collected into, selects similar
Physical modeling materials, the similar physical modeling materials proportion on design simulation stratum.
Step 2：Production stratum simulation material 4 is matched according to similar physical modeling materials, is laid with ground in phantom frame 2
Layer simulation material 4, and be compacted；The production of other simulated formations is successively carried out, ventilation is dried.
Step 3：According to simulation 16 experimental design scheme of protection facility production simulation protection facility 16, and protected in simulation
Strain gauge 11 is laid in facility 16, and the tempered glass that the simulation of protection facility 16 tunnel 10 is mounted on test is simulated into tunnel 10
Between.
Step 4：The ore body 5 within the scope of 20 excavation design of backplate of simulation ore body side is dismantled, side guard plate 20 and close is installed
Strip of paper used for sealing.
Step 5：Debugging and test data collection device 9, check the monitoring sensor 12 arranged in simulation tunnel 10,13,
14, and data line access computer 8 is debugged and tested.
Step 6：Bearing plate 6 is installed, is pressed 3 pressure of hydraulic jack with being applied to design by the hydraulic pump of console 1
Value.
Step 7：It simulates goaf to collapse, monitoring causes the air-impingement parameter in simulation tunnel 10.
Step 8：According to the air-impingement Parameters variation analysis of simulation 16 front and back sensor 12,13,14 of protection facility monitoring
Simulate the validity and feasibility of protection facility 16.
3. simulation goaf, which collapses, causes air-impingement mining Design Optimum Experiment
Step 1：It is familiar with the geological hydrology and Mining technology condition of exploitation ore body, according to the data being collected into, selects similar
Physical modeling materials, the similar physical modeling materials proportion on design simulation stratum.
Step 2：Production stratum simulation material 4 is matched according to similar physical modeling materials, is laid with ground in phantom frame 2
Layer simulation material 4, and be compacted；The production of other simulated formations is successively carried out, ventilation is dried.
Step 3：The simulation ore body 5 within the scope of 20 excavation design of backplate of simulation ore body side is dismantled, part is stayed to exploit
Simulation ore or be laid with padded coaming as the bed course for preventing roof caving from impacting, installation side guard plate 20 and sealing strip.
Step 4：Debugging and test data collection device 9, check the monitoring sensor 12 arranged in simulation tunnel 10,13,
14, and data line access computer 8 is debugged and tested.
Step 5：Bearing plate 6 is installed, is pressed 3 pressure of hydraulic jack with being applied to design by the hydraulic pump of console 1
Value.
Step 6：It simulates goaf to collapse, monitoring causes the air-impingement parameter in simulation tunnel 10.
The above description is merely a specific embodiment, but the protection scope invented is not limited thereto, any ripe
The engineers and technicians for knowing the art within the technical scope of the present invention, can do some transformation, such as frame structure, load side
Formula, the shape for simulating tunnel and means of testing etc., all should be as infringement protection scope of the present invention.Therefore protection of the invention
Range should be subject to the scope of protection of the claims.
Claims (2)
1. a kind of underground air impacts disaster experimental rig, including phantom frame, tunnel, loading device, experimental test dress are simulated
It sets, simulate protection facility, it is characterised in that：
1. phantom frame is made of pedestal, lateral wall interior panel, sealing strip and top beam, wherein top beam is as load hydraulic jack
Pedestal fixed beam；
2. simulation tunnel is made of three sections of tempered glass simulation tunnels, intermediate tempered glass simulation tunnel installation air-impingement simulation
Protection facility, two sides tempered glass simulate tunnel installation test sensor, and tempered glass simulates tunnel and uses flanged joint；
3. loading device is made of console, hydraulic jack, fluid pressure line, real by hydraulic jack loading simulation stratum
Existing goaf, which collapses, simulates；
4. experiment test device is acquired by strain gauge, baroceptor, microseismic sensors, sensor of dust concentration, data
Device and computer composition are caving the parameter for causing tunnel air-shock wave using experiment test device acquisition simulation country rock；
5. being needed to select simulation protection facility according to experimental design, there are three types of forms for simulation protection facility：A, rigidity closing partition wall,
Simulation material wall is made in simulation tunnel according to geometric dimension and intensity；B, hole pattern flexible bulkhead, according to dimensioning
Very little and intensity production simulation flexible bulkhead in simulation tunnel；C, water-filled vessel partition wall is built with the plastic container of water-filling,
Its both ends is suspended on simulation back, covering simulation drift section.
2. a kind of operating method of underground air impact disaster experimental rig according to claim 1, it is characterised in that：
1. being familiar with the geological hydrology and Mining technology condition of exploitation ore body, according to the data being collected into, similar physical analogy is selected
Material, the similar physical modeling materials proportion on design simulation stratum；
2. matching production simulated formation material according to similar physical modeling materials, stratum simulation material is laid in model framework,
And it is compacted；The production of other simulated formations is successively carried out, ventilation is dried；
3. dismantling the ore body within the scope of the backplate excavation design of simulation ore body side, side guard plate and sealing strip are installed；
4. debugging and test data collection device check the monitoring sensor arranged in simulation tunnel, and data line are accessed and is calculated
Machine is debugged and is tested；
5. installing bearing plate, Hydraulic Jack is pressed into value with being applied to design by the hydraulic pump of console；
6. simulating goaf to collapse, monitoring causes the air-impingement parameter in simulation tunnel.
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| CN106950348B (en) * | 2017-03-16 | 2023-07-21 | 水利部交通运输部国家能源局南京水利科学研究院 | Hydraulic consolidation device and method for geotechnical centrifugal model test |
| CN111751873A (en) * | 2020-07-02 | 2020-10-09 | 中国安全生产科学研究院 | Metal mine goaf micro-seismic wave propagation law simulation test device and method |
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Effective date of registration: 20191217 Address after: Room c506a-19, University Business Park, No. 99, University Road, Xuzhou hi tech Industrial Development Zone, Xuzhou City, Jiangsu Province Patentee after: Xuzhou Tiancheng Intelligent Technology Co., Ltd Address before: 232001 Anhui Province, Huainan city Shungeng Road No. 168 Patentee before: Anhui University Of Science And Technology |
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