CN203858239U - pipeline system for coal and gas outburst simulation experiment - Google Patents
pipeline system for coal and gas outburst simulation experiment Download PDFInfo
- Publication number
- CN203858239U CN203858239U CN201420312613.4U CN201420312613U CN203858239U CN 203858239 U CN203858239 U CN 203858239U CN 201420312613 U CN201420312613 U CN 201420312613U CN 203858239 U CN203858239 U CN 203858239U
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- Prior art keywords
- coal
- pipe
- gas outburst
- connecting pipe
- observation
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- Expired - Lifetime
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- 239000003245 coal Substances 0.000 title claims abstract description 57
- 238000004088 simulation Methods 0.000 title abstract description 4
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000002474 experimental method Methods 0.000 claims description 28
- 239000012530 fluid Substances 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 9
- 230000000007 visual effect Effects 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 claims description 4
- 239000005297 pyrex Substances 0.000 claims description 4
- 238000005496 tempering Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000005514 two-phase flow Effects 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Pipeline Systems (AREA)
Abstract
The utility model discloses a pipe-line system for coal and gas outburst simulation experiment, including pipeline subassembly and the connecting pipe of connecting driving system and pipeline subassembly entry, the pipeline subassembly is the multi-branch structure that constitutes through flange joint by the pipeline unit, the pipeline unit is including the straight tube that constitutes single branch, connect the first connecting pipe of two branches and connect the second connecting pipe of three branches, be equipped with observation hole and/or test hole on the pipeline unit, observation hole installation is used for observing fine coal and piles up the observation subassembly of state, test hole installation is used for fixed sensing device's test subassembly; the utility model can freely combine the straight pipe, the first connecting pipe and the second connecting pipe by increasing, decreasing or adjusting, and can simulate a simple mine tunnel network with a multi-branch structure; the observation assembly and the test assembly arranged on the pipeline unit can observe the accumulation form of the pulverized coal by naked eyes, and the instrument can measure parameters such as two-phase flow speed, roadway gas pressure, pulverized coal accumulation height, coal rock movement distance and the like.
Description
Technical field
The utility model relates to a kind of mine disaster experimental system for simulating, particularly a kind of piping system for coal and Gas Outburst simulated experiment.
Background technology
Coal and Gas Outburst are one of disasters the most serious in coal in China exploitation.The dynamic effect producing when outstanding generation can be destroyed production system, causes casualties, and easily causes the major accident such as coal dust and gas explosion.Therefore, reduce to greatest extent the destruction of disaster, just must study the calamity mechanism that causes of coal and Gas Outburst, explore effective disaster control method and measure.The overall process of coal and Gas Outburst can be regarded as two different phases, one of them stage is the shattering process of outstanding coal body, its main manifestations feature is that coal body produces destruction and peels off with rib under the acting in conjunction of terrestrial stress, gas pressure and digging activity, the continuous desorb of adsorption gas in coal body, free gas discharges, at the inner coal-gas two-phase flow that forms of outburst hole; Another stage is the process of dishing out after coal body fragmentation, it is the dynamic effect stage, also coal-gas two-phase flow ejection the outburst hole forming on last stage the process that sorting is piled up in tunnel, this stage is not in the situation that considering roof caving, terrestrial stress plays a secondary role, and the promotion of methane gas plays dominating role.
Due to the restriction of complicacy and research method and the means of coal and Gas Outburst, both at home and abroad to after coal and Gas Outburst to cause calamity theoretical research less.Outstanding dynamic disaster laboratory simulation and on-the-spot actual observation all exist the difficulty that cannot overcome.Although carried out at present a large amount of coals and Gas Outburst experiment both at home and abroad, and many breakthrough progress are obtained, but achievement in research concentrates on adsorption-desorption rule mostly, coal body failure law, terrestrial stress effect, the aspects such as moulded coal parameter, a lot of problems are as fluid motion parameter and flow state in coal and Gas Outburst, shock wave forms mechanism and the impact damage to main ventilation equipment, execution, the research that causes the aspects such as calamity condition and early warning protection is fewer, its main cause has: first, due to solid-gas phase the complex nature of the problem, at present still do not have very ripe theoretical result to explain the characteristics of motion of two-phase flow, the second, the outstanding model in existing coal and Gas Outburst laboratory is difficult to reach the requirement of on-the-spot physical condition, and dynamic effect experiment effect is not obvious, the 3rd, the relevant description of outstanding on-the-spot generation power destruction and impact is detailed not, and due to mine safety regulation and safety equipment restriction, outstanding photo site and video data are little, are unfavorable for the research of problem.These reasons cause outstanding cause calamity research aspect and relatively lagging behind above, and people cannot fundamentally set forth outstanding brought harm, and the conclusion that more directly utility theory analysis draws is carried out Guiding Practice.
Therefore, be necessary to develop a kind of experimental provision that is specifically designed to coal and the simulated experiment of Gas Outburst dynamic effect, that understands coal and Gas Outburst with the experiment of chamber by experiment causes calamity and controlled condition, more clearly be familiar with coal and Gas Outburst by dynamic effect experimental study and cause calamity mechanism and generation, the rule of development, effectively controlling coal and Gas Outburst disaster, is its requisite part for simulating the piping system of mine laneway network.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of piping system for coal and Gas Outburst simulated experiment, that understands coal and Gas Outburst with the experiment of chamber by experiment causes calamity and controlled condition, more clearly be familiar with coal and Gas Outburst by dynamic effect experimental study and cause calamity mechanism and generation, the rule of development, effectively control coal and Gas Outburst disaster.
Piping system for coal and Gas Outburst simulated experiment of the present utility model, comprise conduit assembly and the connecting pipe that is connected power system and described conduit assembly entrance, described conduit assembly is the multiple-branching construction being connected to form by flange by piping unit, described piping unit comprises the straight tube that forms single branch, connect first connecting pipe and the second connecting pipe that is connected three branches of Liang Ge branch, described piping unit is provided with observation port and/or instrument connection, described observation port is installed the observation assembly for observing fine coal stacking states, described instrument connection is installed the test suite for fixing sensing device.
Further, described connecting pipe comprises with power system and exports the sub-pipe being connected and the mother who is connected with described conduit assembly entrance pipe, described sub-pipe is inserted in described female pipe and can be along the axially-movable of described female pipe, described female pipe front end is provided with pilot hole, keeper positions described sub-pipe through described pilot hole, and described son pipe rear end is provided with the O-ring seal mounting groove for O-ring seal is installed.
Further, described piping unit also comprises tilt adjustment pipe, and the two ends of described tilt adjustment pipe connect respectively described straight tube and for adjustable pipe road inclination or position angle.
Further, described piping unit is rectangular tube, and described instrument connection is located at the end face of described piping unit, and described observation port is located at side adjacent with end face on described piping unit.
Further, the edge surrounding of described observation port is processed an I of portalling, and described observation assembly comprises and port lid I and the sealing of described hole seat I adaptation are fixed on the visual glass between described hole seat I and port lid I.
Further, the edge surrounding processing of a described instrument connection II of portalling, described test suite comprises with the port lid II of described hole seat II adaptation and is fixed in described port lid II and stretches into the sensor in described piping unit.
Further, this piping system also comprises the sectional shelf-unit for supporting described conduit assembly, described sectional shelf-unit comprises the underframe being formed by ∏ shape steel beam splicing and is connected to level altitude support and the movable height bracket on described underframe, the height change that the adjacent described straight tube with differing heights of described movable height bracket support causes due to change of pitch angle to adapt to described straight tube.
Further, described in each, in port lid II, arrange altogether three equally spaced for the installation of sensors hole of described sensor is installed along fluid motion direction.
Further, described visual glass is tempering Pyrex.
Further, described the first connecting pipe is right-angle bend, and described the second connecting pipe is three-way pipe.
The beneficial effects of the utility model: the piping system for coal and Gas Outburst simulated experiment of the present utility model, independent assortment is carried out in increase and decrease or adjustment by straight tube, the first connecting pipe, the second connecting pipe, can simulate the mine laneway network easily with multiple-branching construction; The observation assembly and the test suite that on piping unit, arrange, can naked-eye observation fine coal accumulation form, and apparatus measures two-phase flow speed, tunnel gaseous tension, fine coal piling height, the parameters such as coal petrography move distance, be conducive to more clearly be familiar with coal and Gas Outburst and cause calamity mechanism and generation, the rule of development, effectively control coal and Gas Outburst disaster.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is vertical view of the present utility model;
Fig. 2 is front view of the present utility model;
Fig. 3 is A place enlarged drawing in Fig. 1;
Fig. 4 is the structural representation of tilt adjustment pipe of the present utility model;
Fig. 5 is B place enlarged drawing in Fig. 1;
Fig. 6 is C place enlarged drawing in Fig. 2.
Embodiment
Fig. 1 is, as shown in the figure: the piping system for coal and Gas Outburst simulated experiment of the present embodiment, comprise conduit assembly and the connecting pipe 2 that is connected power system and described conduit assembly entrance, described conduit assembly is the multiple-branching construction being connected to form by flange by piping unit, described piping unit comprises the straight tube 11 that forms single branch, connect first connecting pipe 12 and the second connecting pipe 13 that is connected three branches of Liang Ge branch, described piping unit is provided with observation port and/or instrument connection, described observation port is installed the observation assembly for observing fine coal stacking states, described instrument connection is installed the test suite for fixing sensing device, power system is the pressure vessel that fills experiment material in outstanding simulated experiment, and the generation of outstanding power is reacted and simulated to experiment material in container, entrance, outlet are all taking fluid motion direction as standard, and one end that fluid enters is entrance, conduit assembly has at least three branches, the straight shape pipeline that each branch is made up of continuously straight tube 11, the bend pipe that the first connecting pipe 12 is both ends open, the second 13 of connecting pipes are for having the pipeline of three openings, independent assortment is carried out in increase and decrease or adjustment by straight tube 11, the first connecting pipe 12, the second connecting pipe 13, can simulate the mine laneway network easily with multiple-branching construction, the observation assembly and the test suite that on piping unit, arrange, can naked-eye observation fine coal accumulation form, and apparatus measures two-phase flow speed, tunnel gaseous tension, fine coal piling height, the parameters such as coal petrography move distance, be conducive to more clearly be familiar with coal and Gas Outburst and cause calamity mechanism and generation, the rule of development, effectively control coal and Gas Outburst disaster.
In the present embodiment, described connecting pipe 2 comprises with power system and exports the sub-pipe 21 being connected and the mother who is connected with described conduit assembly entrance manage 22, described son pipe 21 is inserted in described female pipe 22 and can be along the axially-movable of described female pipe 22, described female pipe 22 front ends are provided with pilot hole 22a, keeper positions described son pipe 21 through described pilot hole 22a, and described son pipe 21 rear ends are provided with the O-ring seal mounting groove 21a for O-ring seal is installed; Connecting pipe 2 two ends are tightly connected with power system, conduit assembly respectively, and it is telescopic type structure, and the entire length of connecting pipe 2 can be finely tuned, and maximum adjustment length is 0.1m, so that the disassembling, assembling and replacing of junction; Keeper can adopt fastening bolt, and son pipe 21 is provided with the hole of at least three connections corresponding to pilot hole 22a; Front end, rear end are all taking fluid motion direction as standard, and fluid first one end of process is front end.
In the present embodiment, described piping unit also comprises tilt adjustment pipe 3, and the two ends of described tilt adjustment pipe 3 connect respectively described straight tube 11 and for adjustable pipe road inclination or position angle; Angle α between tilt adjustment pipe 3 both ends of the surface can be 10 °-20 °; As shown in Figure 4, tilt adjustment pipe 3 makes this piping system have change of pitch angle, forms the pipeline configuration more similar to actual mine laneway network, and fluid motion and actual burst effect are approached, and experimentation more can reflect actual conditions, and experimental result is more accurate.
In the present embodiment, described piping unit is rectangular tube, and described instrument connection is located at the end face of described piping unit, and described observation port is located at side adjacent with end face on described piping unit; Square pipe is more similar to actual mine laneway network, further makes fluid motion and actual burst effect approach, and experimentation more can reflect actual conditions, and experimental result is more accurate; End face is the upper surface of piping unit while placing, and instrument connection is arranged on end face, strengthens the induction accuracy of sensing device, and staff can also carry out cleaning to pipeline from instrument connection, is located at end face and is convenient to clean; Observation port is arranged on side, is convenient to situation in pipeline to carry out Real Time Observation.
In the present embodiment, the edge surrounding of described observation port is processed the I 41 of portalling, and described observation assembly comprises and port lid I 51 and the sealing of described hole seat I 41 adaptations are fixed on the visual glass 52 between described hole seat I 41 and port lid I 51; Hole seat I 41 has with port lid I 51 flange plate structure being connected, and is convenient to be connected and sealed; Visual glass 52 forms transparent window, and can carry experimental pressure, to observe simulation coal mine roadway gas blasting phenomena.
In the present embodiment, the edge surrounding processing of the described instrument connection II 61 of portalling, described test suite comprises with the port lid II 71 of described hole seat II 61 adaptations and is fixed in described port lid II 71 and stretches into the sensor 73 in described piping unit; Hole seat II 61 has with port lid II 71 flange plate structure being connected, and is convenient to be connected and sealed; Sensor 73, for detection of the experiment parameter such as temperature, pressure in experimentation, improves experimental result data.
In the present embodiment, this piping system also comprises the sectional shelf-unit for supporting described conduit assembly, described sectional shelf-unit comprises the underframe 81 being formed by ∏ shape steel beam splicing and is connected to level altitude support 82 and the movable height bracket (not shown) on described underframe 81, the height change that the adjacent described straight tube 11 with differing heights of described movable height bracket support causes due to change of pitch angle to adapt to described straight tube 11; Underframe 81 is mainly made up of ∏ shape steel, crossbeam and joint bolt, for keeping the smooth of conduit assembly entirety; For the ease of transport and dismounting, underframe 81 is divided into several sections that length does not wait, is connected into an entirety to lay on the ground by joint bolt, and its overall laying form is identical with conduit assembly; Level altitude support 82 is made up of two foot supports, four foot supports and five foot supports, and wherein two foot supports are mainly used in the piping unit of supporting with observation assembly, to prevent support top steel pipe shielding window; Five foot supports are used for supporting the first connecting pipe 12, to improve pipeline steadiness; Other conduit assemblies adopt four foot supports to support; There is lower margin flange in each support foot, for height bracket 82 and the underframe 81 of being connected and fixed; Movable height bracket supports tilt adjustment pipe 3 and changes the straight tube 11 of height through tilt adjustment pipe 3.
In the present embodiment, described in each, in port lid II 71, arrange altogether three equally spaced for the installation of sensors hole 74 of described sensor 73 is installed along fluid motion direction; The quantity of sensor 74 can be set according to experiment demand, in the time of sensor installation 73 not, and installation of sensors hole 74 use bolt seal.
In the present embodiment, described visual glass 42 is tempering Pyrex; The resistance to elevated temperatures of tempering Pyrex is stable, can be in for a long time under 450 DEG C of hot environments and work, moment, heatproof was up to 650 DEG C, after half tempered is processed, can significantly improve the thermal shock resistance of glass, improve the physical strength of glass, thermal expansivity is low, transparency is high, water-fast, alkaline-resisting, acid resistance is good, high strength, high rigidity, has superpower antiknock ability.
In the present embodiment, described the first connecting pipe 12 is right-angle bend, and described the second connecting pipe 13 is three-way pipe; Right-angle bend, three-way pipe are all easily manufactured, and are conducive to reduce production costs.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (10)
1. the piping system for coal and Gas Outburst simulated experiment, it is characterized in that: comprise conduit assembly and the connecting pipe that is connected power system and described conduit assembly entrance, described conduit assembly is the multiple-branching construction being connected to form by flange by piping unit, described piping unit comprises the straight tube that forms single branch, connect first connecting pipe and the second connecting pipe that is connected three branches of Liang Ge branch, described piping unit is provided with observation port and/or instrument connection, described observation port is installed the observation assembly for observing fine coal stacking states, described instrument connection is installed the test suite for fixing sensing device.
2. the piping system for coal and Gas Outburst simulated experiment according to claim 1, it is characterized in that: described connecting pipe comprises with power system and exports the sub-pipe being connected and the mother who is connected with described conduit assembly entrance pipe, described sub-pipe is inserted in described female pipe and can be along the axially-movable of described female pipe, described female pipe front end is provided with pilot hole, keeper positions described sub-pipe through described pilot hole, and described son pipe rear end is provided with the O-ring seal mounting groove for O-ring seal is installed.
3. the piping system for coal and Gas Outburst simulated experiment according to claim 2, it is characterized in that: described piping unit also comprises tilt adjustment pipe, the two ends of described tilt adjustment pipe connect respectively described straight tube and for adjustable pipe road inclination or position angle.
4. the piping system for coal and Gas Outburst simulated experiment according to claim 3, it is characterized in that: described piping unit is rectangular tube, described instrument connection is located at the end face of described piping unit, and described observation port is located at side adjacent with end face on described piping unit.
5. the piping system for coal and Gas Outburst simulated experiment according to claim 4, it is characterized in that: the edge surrounding of described observation port is processed an I of portalling, and described observation assembly comprises and port lid I and the sealing of described hole seat I adaptation are fixed on the visual glass between described hole seat I and port lid I.
6. the piping system for coal and Gas Outburst simulated experiment according to claim 5, it is characterized in that: the edge surrounding processing of a described instrument connection II of portalling, described test suite comprises with the port lid II of described hole seat II adaptation and is fixed in described port lid II and stretches into the sensor in described piping unit.
7. the piping system for coal and Gas Outburst simulated experiment according to claim 6, it is characterized in that: also comprise the sectional shelf-unit for supporting described conduit assembly, described sectional shelf-unit comprises the underframe being formed by ∏ shape steel beam splicing and is connected to level altitude support and the movable height bracket on described underframe, the height change that the adjacent described straight tube with differing heights of described movable height bracket support causes due to change of pitch angle to adapt to described straight tube.
8. the piping system for coal and Gas Outburst simulated experiment according to claim 7, is characterized in that: described in each, in port lid II, arrange altogether three equally spaced for the installation of sensors hole of described sensor is installed along fluid motion direction.
9. the piping system for coal and Gas Outburst simulated experiment according to claim 8, is characterized in that: described visual glass is tempering Pyrex.
10. according to the piping system for coal and Gas Outburst simulated experiment described in any one in claim 1 to 9, it is characterized in that: described the first connecting pipe is right-angle bend, described the second connecting pipe is three-way pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312613.4U CN203858239U (en) | 2014-06-12 | 2014-06-12 | pipeline system for coal and gas outburst simulation experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312613.4U CN203858239U (en) | 2014-06-12 | 2014-06-12 | pipeline system for coal and gas outburst simulation experiment |
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| Publication Number | Publication Date |
|---|---|
| CN203858239U true CN203858239U (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420312613.4U Expired - Lifetime CN203858239U (en) | 2014-06-12 | 2014-06-12 | pipeline system for coal and gas outburst simulation experiment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290343A (en) * | 2017-06-26 | 2017-10-24 | 重庆大学 | Coal and gas prominent power causes calamity visual virtual design pilot system |
| CN107356723A (en) * | 2017-06-26 | 2017-11-17 | 重庆大学 | Mine laneway systems modelling component |
| CN107389678A (en) * | 2017-06-26 | 2017-11-24 | 重庆大学 | Coal and gas prominent power causes calamity visual virtual design test method |
| CN107389859A (en) * | 2017-06-26 | 2017-11-24 | 重庆大学 | Man-machine ring is damaged simulation experiment method in coal and gas prominent Catastrophe Process |
-
2014
- 2014-06-12 CN CN201420312613.4U patent/CN203858239U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290343A (en) * | 2017-06-26 | 2017-10-24 | 重庆大学 | Coal and gas prominent power causes calamity visual virtual design pilot system |
| CN107356723A (en) * | 2017-06-26 | 2017-11-17 | 重庆大学 | Mine laneway systems modelling component |
| CN107389678A (en) * | 2017-06-26 | 2017-11-24 | 重庆大学 | Coal and gas prominent power causes calamity visual virtual design test method |
| CN107389859A (en) * | 2017-06-26 | 2017-11-24 | 重庆大学 | Man-machine ring is damaged simulation experiment method in coal and gas prominent Catastrophe Process |
| CN107356723B (en) * | 2017-06-26 | 2019-06-07 | 重庆大学 | Mine laneway systems modelling component |
| CN107389859B (en) * | 2017-06-26 | 2019-06-21 | 重庆大学 | People-machine-ring is damaged simulation experiment method in coal and gas prominent Catastrophe Process |
| CN107389678B (en) * | 2017-06-26 | 2020-03-24 | 重庆大学 | Visual physical simulation test method for coal and gas outburst dynamic disaster |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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