CN108801583A - A kind of flow field in goaf analog simulation experimental device - Google Patents
A kind of flow field in goaf analog simulation experimental device Download PDFInfo
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- CN108801583A CN108801583A CN201810569375.8A CN201810569375A CN108801583A CN 108801583 A CN108801583 A CN 108801583A CN 201810569375 A CN201810569375 A CN 201810569375A CN 108801583 A CN108801583 A CN 108801583A
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- 238000004088 simulation Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 239000000700 radioactive tracer Substances 0.000 claims abstract description 35
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000002351 wastewater Substances 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 5
- 230000015654 memory Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 16
- 238000012545 processing Methods 0.000 abstract description 7
- 239000011521 glass Substances 0.000 abstract description 6
- 239000005341 toughened glass Substances 0.000 abstract description 4
- 239000003245 coal Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/08—Aerodynamic models
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- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a kind of flow field in goaf analog simulation experimental devices, including goaf, air inlet and air return lane, it is provided with apparatus for combining liquids on the outside of goaf, tracer storing bottle is installed on apparatus for combining liquids, liquid cup fluid connection in the outlet of tracer storing bottle and apparatus for combining liquids, probe material mouth is provided on goaf, probe material mouth passes through the fluid communication in the liquid cup in water pipe and apparatus for combining liquids；The device builds stope model using tempered glass, goaf porous media is substituted using glass column, goaf gas is substituted with fluid (water), use concentration distribution of the high-speed camera shooting tracer in goaf, the regularity of distribution of flow field in goaf is analyzed using image processing techniques, this method and device are highly practical, have extensive application value.
Description
Technical field
The present invention relates to coal goaf technical field, more particularly to a kind of flow field in goaf analog simulation experimental device.
Background technology
Coal spontaneous combustion disaster is that goaf air flow field persistently supplies oxygen, loses coal accumulation of heat, heat gathers comprehensive function as a result, having
Disaster concealment is compared with the features such as strong, flow field is complicated, difficulty of governance is big.Practical goaf is not isotropic porous media,
Goaf inner pore has the characteristics that bendability, scalar property and randomness, working face are leaked to the distinguished and admirable in coal and rock group of goaf
At porous media in flow, form including turbulent flow, transition flow and the simultaneous non linear fluid flow through porous medium field of laminar flow, cause mined out
Gas flow inside area is extremely complex.From the point of view of the origin cause of formation of coal spontaneous combustion fire, goaf " heat " and " wind " are closely bound up,
Wind flow field is restricted with temperature field interactions, mutually, and it is the medium of heat transfer to leak out, and oxygen supply of leaking out is the prerequisite of heat
Condition, enough inleakages can take away the heat of coal spontaneous combustion generation, reduce coal temperature, and control oxygen concentration is that goaf is anti-
The major tasks of fire extinguishing.Therefore, the research goaf flow field regularity of distribution is the basis of mine preventing and extinguishing fire technology, to abundant porous
Air flow theory in medium has important theory significance.
Goaf gas migration law study experienced analytic method, graphical method, physical simulation and electrical analogue and number
It is worth the processes such as calculating, numerical simulation is that current research flow field in goaf is distributed most commonly used method, and this method is false by goaf
The porous media being set as under certain pore structure, according to the practical geology of working face and mining conditions, using masonry beam theory, " O "
The parameters such as porosity, the internal drag in type circle theoretical calculation goaf, using Porous Media mechanics Darcy seepage flow law,
The fluid distrbution computation model for establishing goaf calculates flow field in goaf using limited element analysis technique using numerical simulation software
Distribution.Method for numerical simulation is easy to use, but key foundation parameter largely relies on empirical equation, the direct shadow of accuracy of parameter
The accuracy of analog result is rung, the analog result obtained is also the approximate solution of flow field in goaf distribution, and is frequently present of calculating
Measure larger, time-consuming, simulation convergence is poor, calculation result data amount is huge, using it is constant the problems such as.
Physical simulation mainly presses actual ratio, builds the similar physical platform of stope, it is desirable that while reducing model
The characterisitic parameter for not changing original structure is higher for the design requirement of experiment porch.In terms of physical platform data acquisition, early stage
The flow path for analyzing gas using observation using means such as tracer, smog, with the development of monitoring technology, pressure, wind speed etc.
Sensor is used to the data such as gas concentration, pressure, flow velocity in monitoring goaf, and Sensor monitoring is that point monitors, by layouting
It is fitted to appear the parameter distribution in domain, it is more demanding to the arrangement and data of sensor, and it is mounted on flow field regions
In sensor itself can influence Flow Field Distribution, therefore, it is necessary to further study the flow field monitoring method in goaf, reduce sensing
Influence of the device to flow field in goaf improves flow field in goaf data precision.
Invention content
The present invention provides a kind of flow field in goaf analog simulation experimental device, builds stope model using tempered glass, makes
Goaf porous media is substituted with glass column, goaf gas is substituted with fluid (water), tracer is shot using high-speed camera
Concentration distribution of the agent in goaf analyzes the regularity of distribution of flow field in goaf, the device practicability using image processing techniques
By force, there is extensive application value.
The present invention provides a kind of flow field in goaf analog simulation experimental device, including goaf, air inlet and air return lane,
The bottom surface side in the goaf is provided with pedestal, and the other side is provided with telescoping shoring column；It is provided with liquid on the outside of the goaf
Body mixing arrangement is equipped with tracer storing bottle on the apparatus for combining liquids, and the tracer storing bottle bottle memory, which is placed with, to be shown
Track agent, liquid cup fluid connection in the outlet of the tracer storing bottle and apparatus for combining liquids, in the apparatus for combining liquids
Conduit, the water inlet connection of the conduit one end and suction pump far from liquid cup, the pumping are inserted in liquid in liquid cup
Pump outlet is connected with water tank by conduit, and water absorption cover is provided in the water tank, and the water absorption cover passes through water pipe and water pump
Water inlet connection, the water outlet of the water pump penetrated through by the air inlet on water pipe and goaf, returning on the goaf
The outlet of air way is connected with waste water tank by hose；Probe material mouth is provided on the goaf, the probe material mouth is logical
Cross water pipe and the fluid communication in the liquid cup in apparatus for combining liquids；It is provided with pressure difference between the air inlet and air return lane
Meter；It is additionally provided with camera support on the goaf, high speed camera is installed on the camera support.
Preferably, being equipped with regulating valve on the water outlet of the water pump.
Preferably, being disposed with flowmeter between the air inlet and air return lane and adjusting facility.
The beneficial effects of the invention are as follows：
(1) model is made into transparent medium, makes water consumption substitution air, by adding tracer, shot using high speed camera
Track of the tracer in goaf, avoids goaf sensor arrangement and data fitting problems；
(2) it is different can to reduce cylinder Population number dynamic imitation using cylinder accumulation simulation porosity by increase for goaf
Porosity distribution；
(3) regularity of distribution of the image processing techniques analysis tracer in goaf is used；
(4) flow regulator is arranged in working face, and differential manometer and flowmeter are installed, matches, can control with water pump
The parameter in entire flow field.
A kind of flow field in goaf analog simulation experimental device provided by the invention builds stope model using tempered glass,
Goaf porous media is substituted using glass column, goaf gas is substituted with fluid (water), is shown using high-speed camera shooting
Concentration distribution of the track agent in goaf analyzes the regularity of distribution of flow field in goaf, this method and dress using image processing techniques
Set it is highly practical, have extensive application value.
Description of the drawings
Fig. 1 is a kind of flow field in goaf analog simulation experimental device structural schematic diagram provided by the invention；
The mined out physical model figures of Fig. 2；
Fig. 3 is the A-A views in Fig. 2；
Fig. 4 is the B-B views in Fig. 2.
Reference sign：
1, goaf；1-1, probe material mouth；1-2, cylinder；1-3, perforated panel；2, pedestal；3, telescoping shoring column；4,
Air inlet；5, air return lane；6, flowmeter；7, facility is adjusted；8, liquid mixing device；9, tracer storing bottle；10, suction pump；11,
Water tank；12, water absorption cover；13, water pump；14, regulating valve；15, hose；16, waste water tank；17, differential manometer；18, camera support；19,
High speed camera.
Specific implementation mode
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention
Protection domain be not restricted by specific implementation.
As shown in Figs 1-4, an embodiment of the present invention provides a kind of flow field in goaf analog simulation experimental device, including it is mined out
The bottom surface side of area 1, air inlet 4 and air return lane 5, goaf 1 is provided with pedestal 2, and the other side is provided with telescoping shoring column 3；It adopts
1 outside of dead zone is provided with apparatus for combining liquids 8, and tracer storing bottle 9, tracer storing bottle are equipped on apparatus for combining liquids 8
9 memories of bottle are placed with tracer, outlet and the liquid cup fluid connection in apparatus for combining liquids 8 of tracer storing bottle 9, liquid mixing
Conduit is inserted in liquid in device 8 in liquid cup, the one end of conduit far from liquid cup is connect with the water inlet of suction pump 10, is taken out
10 water outlet of water pump is connected with water tank 11 by conduit, and water absorption cover 12 is provided in water tank 11, and water absorption cover 12 passes through water pipe and water
The water inlet connection of pump 13, the water outlet of water pump 13 are penetrated through by the air inlet 4 on water pipe and goaf 1, returning on goaf 1
The outlet of air way 5 is connected with waste water tank 16 by hose 15；Probe material mouth 1-1, probe material mouth 1- are provided on goaf 1
1 passes through the fluid communication in the liquid cup in water pipe and apparatus for combining liquids 8；It is provided with pressure difference between air inlet 4 and air return lane 5
Meter 17, specifically, being provided with conducive to the pressure difference at record working face both ends for differential manometer, further provides for final data processing
Parameter；It is additionally provided with camera support 18 on goaf 1, high speed camera 19 is installed on camera support 18.
The flow field in goaf analog simulation experimental device including stope physical model, fluid flow as shown in Figure 1, control back
Receipts system, tracer add-on system, high-speed capture system.
For stope physical model as shown in Fig. 2, material is transparent toughened glass, internal free height is 2.5cm, is divided into goaf
It with two regions of working face, is separated by perforated panel 1-3, goaf is substituted using cylinder 1-2 and loses coal and rock block, according to cylinder
The distribution of pores situation that body uses simulates the Flow Field Distribution under different porosities, and hole is caused when cylinder squeezes excessively in order to prevent
Obstructed, three sulculuses of constructing on the identical height and position of each cylinder ensure pore communication；Working face region is by entering the wind
Lane, air return lane and roadway workface composition, air inlet and the inlet and outlet that air return lane is fluid；Physical model bottom fills
There are pedestal and telescoping shoring column, the elevation angle for adjusting model, influence of the research different coal inclination angle to flow field in goaf.
Fluid flow controls retracting device by water tank, water pump, adjusting facility, flowmeter, differential manometer, Sewage treatment case group
At passing through the flow that flow model fluid is adjusted in testing pump valve；It adjusts facility and two groups of flowmeters is adopted for controlling to leak into
The flow of dead zone；Waste water tank is used to collect the fluid of addition probe material.
Tracer add-on system includes probe material storage tank, flowmeter, gas injection port, and probe material is entered by gas injection port
In goaf.
High-speed capture system is made of high-speed camera phase and camera support, the flowing rail for shooting goaf probe material
Mark.
Preferably, regulating valve 14 is installed, being provided with for regulating valve enters conducive to control water pump on the water outlet of water pump 13
The flow of water in air inlet.
Preferably, it is disposed with flowmeter 6 between air inlet 4 and air return lane 5 and adjusts facility 7, flowmeter is used for surveying
Flow in buret road adjusts facility and is used for controlling the flow in goaf.
Work step：
A kind of flow field in goaf analog simulation experimental device, operating procedure are as follows：
(1) equipment connects：
According to practical mine situation, 1 model parameter of goaf is set：By practical goaf porosity, needed for computation model
Cylinder 1-2 quantity is placed in 1 region of goaf, mounting opening plate 1-3 between goaf 1 and working face, and closing is entire
Model；The height of telescoping shoring column 3 is adjusted, coordinates Rotatable base 2, adjusts the inclination angle of working face.By water absorption cover 12 by soft
Pipe 15 is put into after being connected to the water inlet of water pump 13 in water tank 11, and water outlet is connected with model air inlet 4.Model air return lane 5 is logical
It crosses hose 15 and is connected to waste water tank 16.Tracer storing bottle 9 is suspended on the top of liquid mixing device 8, utilizes its own gravity and tune
Save the additive amount of valve control tracer；Suction pump 10 extracts the water in water tank 11 to liquid mixing device 8, is connected to by hose 15
In probe material mouth 1-1.Model air inlet 4 installs flowmeter；Working face is close to inlet side installation flowmeter 6 and adjusts facility 7,
The inleakage size that goaf is determined according to the difference of two flowmeters controls the inleakage in goaf by adjusting facility 7.Work
Make face two ends installation differential manometer 17, the pressure difference for monitoring both ends, evaluation work face, goaf airflow parameter；At a high speed
Camera 19 is mounted on camera support 18, for recording concentration and track distribution situation of the tracer in goaf.
(2) equipment power-ons such as water pump 13, suction pump 10, high speed camera 19, flowmeter 6.
(3) flow control：
The regulating valve 14 for adjusting water pump 13, controls the water yield of water pump, the as intake of air inlet 4.
The adjusting facility 7 of working face is adjusted, the assignment of traffic of working face and goaf 1 is controlled.
(4) tracer burst size calculates and tracer solution mixes.
According to the flow in goaf and tracer concentration requirement, the burst size and rate of release of tracer are calculated.It will show
Track agent storing bottle 9 is placed upside down on tracer adding set, is taken in corresponding dosage influent mixing device 8 using gravity, with drawing water
Pump 10, which draws water, mixes reactor solution, and discharging the reactor solution in liquid mixing device 8 by regulating valve enables its flow into tracer
In substance mouth 1-1.
(5) high-speed camera 19, flowing overall process of the record tracer in goaf are opened.
(6) data processing：
Picture is shot according to high-speed photographic, using picture analysis software, extracts the tracer concentration in different moments goaf
Distribution.According to parameters such as 9 additive amount of tracer storing bottle, adding speed, 13 pump-out of water pump, differential manometer 17, flowmeters 6, divide
Analyse the Flow Field Distribution rule in goaf.
In conclusion a kind of flow field in goaf analog simulation experimental device provided in an embodiment of the present invention, using tempering glass
Glass builds stope model, and goaf porous media is substituted using glass column, substitutes goaf gas with fluid (water), uses height
Concentration distribution of the fast video camera shooting tracer in goaf, the distribution that flow field in goaf is analyzed using image processing techniques are advised
Rule, this method and device are highly practical, have extensive application value.
Disclosed above is only several specific embodiments of the present invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think variation should all fall into protection scope of the present invention.
Claims (3)
1. a kind of flow field in goaf analog simulation experimental device, including goaf (1), air inlet (4) and air return lane (5), special
Sign is that the bottom surface side of the goaf (1) is provided with pedestal (2), and the other side is provided with telescoping shoring column (3)；
It is provided with apparatus for combining liquids (8) on the outside of the goaf (1), tracer is installed on the apparatus for combining liquids (8)
Storing bottle storing bottle (9), tracer storing bottle bottle (9) memory are placed with tracer, the outlet of the tracer storing bottle (9)
With liquid cup fluid connection in apparatus for combining liquids (8), it is inserted with and leads in the liquid in the apparatus for combining liquids (8) in liquid cup
Pipe, the one end of the conduit far from liquid cup are connect with the water inlet of suction pump (10), and suction pump (10) water outlet passes through
Conduit is connected with water tank (11), is provided with water absorption cover (12) in the water tank (11), the water absorption cover (12) passes through water pipe and water
The water inlet connection of (13) is pumped, the water outlet of the water pump (13) is penetrated through by the air inlet (4) on water pipe and goaf (1),
The outlet of air return lane (5) on the goaf (1) is connected with waste water tank (16) by hose (15)；
Probe material mouth (1-1) is provided on the goaf (1), the probe material mouth (1-1) is mixed by water pipe and liquid
Attach together the fluid communication set in the cup of the liquid in (8)；
It is provided with differential manometer (17) between the air inlet (4) and air return lane (5)；
It is additionally provided with camera support (18) on the goaf (1), high speed camera (19) is installed on the camera support (18).
2. flow field in goaf analog simulation experimental device as described in claim 1, which is characterized in that water pump (13) go out
Regulating valve (14) is installed on the mouth of a river.
3. flow field in goaf analog simulation experimental device as described in claim 1, which is characterized in that the air inlet (4) with
It is disposed with flowmeter (6) between air return lane (5) and adjusts facility (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810569375.8A CN108801583B (en) | 2018-06-05 | 2018-06-05 | Goaf flow field simulation experiment device |
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| CN201810569375.8A CN108801583B (en) | 2018-06-05 | 2018-06-05 | Goaf flow field simulation experiment device |
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| CN108801583A true CN108801583A (en) | 2018-11-13 |
| CN108801583B CN108801583B (en) | 2023-11-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781385A (en) * | 2019-03-12 | 2019-05-21 | 上海理工大学 | For studying the device and method of adverse current filler matrix band flow characteristics |
| CN109827747A (en) * | 2019-03-12 | 2019-05-31 | 上海理工大学 | For studying the device and method of crossing current filler matrix band flow characteristics |
| CN109975180A (en) * | 2019-04-18 | 2019-07-05 | 龙岩学院 | Goaf resistance coefficient test device and method under impact load |
| CN112197931A (en) * | 2020-10-28 | 2021-01-08 | 中国科学院力学研究所 | Control method of pure gas jet wind tunnel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202230077U (en) * | 2011-04-22 | 2012-05-23 | 西安科技大学 | Simulating test device for coupling function of solid-liquid-gas three-phase medium in coal mine stope |
| CN102564725A (en) * | 2012-03-12 | 2012-07-11 | 徐州中矿安达矿山科技有限公司 | Simulation experiment device of three-dimensional gas extraction worked-out area flow field |
| CN102607663A (en) * | 2011-11-30 | 2012-07-25 | 新奥气化采煤有限公司 | Underground cavity volume detection method and underground cavity volume detection device |
| CN103790607A (en) * | 2013-12-13 | 2014-05-14 | 湖南科技大学 | Mined-out coal area micro-flow experiment method and system device thereof |
| CN104296956A (en) * | 2014-09-09 | 2015-01-21 | 中国矿业大学 | Sublevel caving/mining longwall face goaf flow filed simulation test device and method |
| CN106593523A (en) * | 2017-01-23 | 2017-04-26 | 中国矿业大学 | Method for controlling goaf air leakage in exploitation process of shallow buried close-range coal seam |
| CN208254768U (en) * | 2018-06-05 | 2018-12-18 | 华北科技学院 | A kind of flow field in goaf analog simulation experimental device |
-
2018
- 2018-06-05 CN CN201810569375.8A patent/CN108801583B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202230077U (en) * | 2011-04-22 | 2012-05-23 | 西安科技大学 | Simulating test device for coupling function of solid-liquid-gas three-phase medium in coal mine stope |
| CN102607663A (en) * | 2011-11-30 | 2012-07-25 | 新奥气化采煤有限公司 | Underground cavity volume detection method and underground cavity volume detection device |
| CN102564725A (en) * | 2012-03-12 | 2012-07-11 | 徐州中矿安达矿山科技有限公司 | Simulation experiment device of three-dimensional gas extraction worked-out area flow field |
| CN103790607A (en) * | 2013-12-13 | 2014-05-14 | 湖南科技大学 | Mined-out coal area micro-flow experiment method and system device thereof |
| CN104296956A (en) * | 2014-09-09 | 2015-01-21 | 中国矿业大学 | Sublevel caving/mining longwall face goaf flow filed simulation test device and method |
| CN106593523A (en) * | 2017-01-23 | 2017-04-26 | 中国矿业大学 | Method for controlling goaf air leakage in exploitation process of shallow buried close-range coal seam |
| CN208254768U (en) * | 2018-06-05 | 2018-12-18 | 华北科技学院 | A kind of flow field in goaf analog simulation experimental device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781385A (en) * | 2019-03-12 | 2019-05-21 | 上海理工大学 | For studying the device and method of adverse current filler matrix band flow characteristics |
| CN109827747A (en) * | 2019-03-12 | 2019-05-31 | 上海理工大学 | For studying the device and method of crossing current filler matrix band flow characteristics |
| CN109781385B (en) * | 2019-03-12 | 2024-05-31 | 上海理工大学 | Device and method for researching water flow characteristics of countercurrent packing forming piece |
| CN109827747B (en) * | 2019-03-12 | 2024-05-31 | 上海理工大学 | Device and method for researching water flow characteristics of cross flow filler forming sheet |
| CN109975180A (en) * | 2019-04-18 | 2019-07-05 | 龙岩学院 | Goaf resistance coefficient test device and method under impact load |
| CN112197931A (en) * | 2020-10-28 | 2021-01-08 | 中国科学院力学研究所 | Control method of pure gas jet wind tunnel |
| CN112197931B (en) * | 2020-10-28 | 2021-06-18 | 中国科学院力学研究所 | Control method of pure gas jet wind tunnel |
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| Publication number | Publication date |
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| CN108801583B (en) | 2023-11-17 |
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