CN205120386U - A analog system for simulating coal seam exploitation - Google Patents
A analog system for simulating coal seam exploitation Download PDFInfo
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- CN205120386U CN205120386U CN201520733884.1U CN201520733884U CN205120386U CN 205120386 U CN205120386 U CN 205120386U CN 201520733884 U CN201520733884 U CN 201520733884U CN 205120386 U CN205120386 U CN 205120386U
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- 239000003245 coal Substances 0.000 title claims abstract description 123
- 238000004088 simulation Methods 0.000 claims abstract description 217
- 238000005065 mining Methods 0.000 claims abstract description 196
- 239000004576 sand Substances 0.000 claims description 10
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 6
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Abstract
The utility model discloses an analog system for simulating coal seam exploitation, including the proof box, similar floor of coal seam has been pour in the bottom of proof box, two at least similar coal columns have been pour to the interval on similar floor of coal seam, be provided with the simulation coal seam between two adjacent similar coal columns, the simulation coal seam comprises many the simulation exploitation tube arrays that can be extracted, the similar rock layer of at least one deck has been pour to top at simulation exploitation pipe. The utility model also discloses an analogue test method. The utility model provides an analog system and analogue test method can be simulated coal seam mining process, and be significant to pushing up the damaged research with crack growth course and change of disturbed strata seepage flow characteristic and evolution law of bottom plate rock mass under the research bao shui exploitation condition among the mining process of coal seam.
Description
Technical field
The utility model relates to the technical field of comprehensive utilization of Mineral Engineering and Geotechnical Engineering, particularly relates to a kind of simulation system for simulating seam mining.
Background technology
The general layout that coal occupies the principal status of public economy in China's energy structure is difficult to quite over a long time change, and the environmental problem that meanwhile development and utilization of coal resources in China causes but becomes increasingly conspicuous.On the one hand, many places, China western rich coal area in arid and semiarid zone, shortage of water resources, simultaneously earth's surface ecology fragility; On the other hand, unavoidably mine water is produced in progress of coal mining, if deal with the destruction not only causing groundwater resource improperly, also can cause a series of harm such as stream runoff minimizing, water resource exhaustion, desertification, environmental pollution, surface subsidence simultaneously.Therefore, water conservation and surface environment are the key subjects that China's western coal development of resources faces.
Utilize coal mine gob to build groundwater reservoir, realize water-retaining production and be comprehensive utilization groundwater resource, protect water-bearing zone, Safety of Coal Mine Production and mine to discard the major action of rear underground water source recycling." green coal " is also national Vital Strategic Problems, will list the important research content of national science and technology key special subjects in.In groundwater reservoir design with in building, location, storehouse and dam site, storage capacity and characteristic level of water, underground water regulate and control and purify with water filtration, all depend on the infiltration coefficient of roof and floor Permeability of rock energy, water flowing fractured zone and slump body and the dynamic change of coefficient of storage and these parameters or variation features and rule.And these problems depend on the breakage of roof and floor rock mass and the physical features such as cranny development process and Evolution, damaged rock mass slump mode, scope, Deposition Types, LUMPINESS DISTRIBUTION, pore size and distribution in Seam Mining process.
At the scene under condition, be difficult to direct observation, viewing, accurately these physical features of test and related physical mechanics parameter.
Under water rock coupling physical model test condition, how as far as possible real simulated field seam mining mode, thus in research water-retaining production Coal Under layer mining active process roof and floor rock mass damaged with cranny development process and the research to colliery lower storage reservoir relevant issues in a distributed manner of Evolution, damaged rock mass slump mode and disturbed strata seepage characteristic change and evolution rule significant.
Utility model content
The utility model object is to overcome defect of the prior art, provide a kind of can to a kind of simulation system for simulating seam mining of Seam Mining process simulation.
Technical solutions of the utility model provide a kind of simulation system for simulating seam mining, comprise chamber, have built similar seat earth in the bottom of described chamber; On described similar seat earth, at least two similar coal columns have been built in compartment of terrain; Between adjacent two described similar coal columns, be provided with simulation coal seam, described simulation coal seam is rearranged by the simulation mining pipe that many can be extracted; The similar lithosphere of at least one deck has been built above described simulation mining pipe.
Further, above many described simulation mining pipes, levelling layer of sand is provided with.
Further, described levelling layer of sand is made up of middle fine sand.
Further, described simulation coal seam includes at least three rows respectively towards the simulation mining pipe group that the described similar coal column of both sides extends; The described simulation mining pipe group stacked combination of three rows together; Often arrange described simulation mining pipe group to be made up of many described simulation mining pipes, and the described simulation mining pipe of the adjacent described simulation mining Guan Zuzhong of two rows is crisscross arranged.
Further, described simulation mining pipe comprises the first simulation mining pipe and the second simulation mining pipe, and the diameter of wherein said first simulation mining pipe is greater than the diameter of described second simulation mining pipe; Often arrange described simulation mining pipe group by many described first simulation mining pipes and described second simulation mining pipe composition, between wherein often adjacent two described first simulation mining pipes, be furnished with a described second simulation mining pipe.
Further, described simulation mining pipe comprises the first simulation mining pipe and the second simulation mining pipe, and the diameter of wherein said first simulation mining pipe is greater than the diameter of described second simulation mining pipe; Described simulation mining pipe group comprises the first simulation mining pipe group be made up of many described first simulation mining pipes and the second simulation mining pipe group be made up of many described second simulation mining pipes; Wherein, the described second simulation mining pipe group of a row is furnished with between the described first simulation mining pipe group that every two rows are adjacent.
Further, described simulation mining pipe is polyvinyl chloride pipe.
Adopt technique scheme, there is following beneficial effect:
The utility model is simulated by the simulation coal seam of exploiting by adopting simulation mining pipe, the recovery process in the good simulated field coal seam of energy.
Simulation mining pipe is set to the polyvinyl chloride pipe of modification, it has the advantages such as nonhazardous, intensity is high, easy to process, it can simulate seam mining, and has that easy construction is easy, the feature of flexible arrangement, simultaneously compressive strength high, stable not yielding, can submersible.
Thus, the simulation system that the utility model provides, can to Seam Mining process simulation, to studying, damaged and cranny development process and disturbed strata seepage characteristic change and evolution rule the research of roof and floor rock mass in water-retaining production Coal Under layer mining active process is significant.
Accompanying drawing explanation
The schematic diagram of the simulation system that Fig. 1 provides for the utility model;
Fig. 2 is the schematic diagram that similar coal column from from the similar coal column of side to opposite side at the uniform velocity extracts simulation mining pipe gradually;
Fig. 3 is the schematic diagram simultaneously at the uniform velocity extracting simulation mining pipe from the specified location between two similar coal columns towards the direction of two similar coal columns;
Fig. 4 is that schematic diagram arranged by the simulation mining pipe in simulation coal seam.
The Reference numeral table of comparisons:
1-chamber; The similar seat earth of 2-; The similar coal column of 3-;
4-simulates coal seam; 5-simulation mining pipe; 50-simulation mining pipe group;
51-first simulation mining pipe group; 52-second simulation mining pipe group;
53-first simulation mining pipe; 54-second simulation mining pipe; The similar lithosphere of 6-;
The levelling layer of sand of 7-.
Embodiment
Embodiment of the present utility model is further illustrated below in conjunction with accompanying drawing.The identical Reference numeral of wherein identical parts represents.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometric center respectively.
As Figure 1-3, a kind of simulation system for simulating seam mining that the utility model one embodiment provides, comprises chamber 1.
Similar seat earth 2 has been built in the bottom of chamber 1.
On similar seat earth 2, at least two similar coal columns 3 have been built in compartment of terrain.
Between adjacent two similar coal columns 3, be provided with simulation coal seam 4, simulation coal seam 4 is rearranged by the simulation mining pipe 5 that many can be extracted.
The similar lithosphere 6 of at least one deck has been built above simulation mining pipe 5.
That is to say, this simulation system is mainly used in water rock coupling model or the water rock coupled simulation system of seam mining in simulating reality.The coupling of water rock refers to the interaction of water and rock.
This simulation system comprises chamber 1, chamber 1 has data collection process equipment (not shown), for gather when simulating seam mining similar seat earth 2, similar coal column 3, simulation coal seam 4 and similar lithosphere 5 hydraulic pressure, ore deposit pressure, coal pressure, to be out of shape etc. data, to go forward side by side row relax, with Binding experiment data-guiding seam mining.
Built similar seat earth 2 in the bottom of chamber 1, it is similar to the base plate in the coal seam for the treatment of simulation mining, is referred to as similar seat earth.That is to say that similar seat earth 2 is shaping with certain similar proportion with the seat earth exploited with reality, specifically by using the analog material similar to real seat earth to be made.
On similar seat earth 2, at least two similar coal columns 3 have been built in compartment of terrain, and it is similar to the coal column in the coal seam for the treatment of simulation mining, is referred to as similar coal column.That is to say that similar coal column 3 is shaping with certain similar proportion with the coal column in the coal seam of exploiting with reality, specifically by using the analog material similar to the coal column in real coal seam to be made.
Between adjacent two similar coal columns 3, be provided with simulation coal seam 4, it is for the coal seam in simulating reality exploitation.Simulation coal seam 4 is rearranged by many simulation mining pipes 5, and simulation mining pipe 5 can be extracted as required, to simulate seam mining.
Above simulation coal seam 4 or simulation mining pipe 5, built the similar lithosphere 6 of at least one deck, it is similar to the top lithosphere in the coal seam for the treatment of simulation mining, is referred to as similar lithosphere.That is to say that similar lithosphere 6 is shaping with certain similar proportion with the lithosphere above the coal seam of exploiting with reality, specifically by using the analog material similar to the lithosphere above real coal seam to be made.
Similar seat earth 2, similar coal column 3 and similar lithosphere 6 involved in the utility model are all the structure be made up of analog material or structure, because it is similar with the intensity, hardness, structure etc. of lithosphere to the seat earth in the coal seam that reality is exploited, coal column respectively, be therefore referred to as seat earth, similar coal column and similar lithosphere.
Above-mentioned build order be after similar seat earth 2 meets requirement of strength, then build similar coal column 3.After similar coal column 3 meets requirement of strength, in layout simulation coal seam 4, building similar lithosphere 6 afterwards.
After similar lithosphere 6 has been built, and after reaching prescribed strength, coal seam excavation simulation can be carried out.
Particularly, as shown in Figure 2, according to prefixed time interval, simulation mining pipe 5 can be collected from the similar coal column 3 in side, then extract simulation mining pipe 5, with simulated field seam mining towards the transport of opposite side similar coal column 3 place.
Also as shown in Figure 3, according to prefixed time interval, can at the uniform velocity extract simulation mining pipe 5 towards the direction of two similar coal columns 3 from the specified location between two similar coal columns 3 simultaneously.
Above-mentioned Preset Time, to excavate interval time in reality similar, that is to say with reality in excavate interval time be that certain proportion arranges prefixed time interval, to meet simulate effect.
The simulation system that the utility model provides, by adopting simulation mining pipe 5 to simulate by the simulation coal seam 4 of exploiting, the recovery process in the good simulated field coal seam of energy.Can by above-mentioned data collection process equipment, gather similar seat earth 2, similar coal column 3, simulation coal seam 4 and similar lithosphere 5 hydraulic pressure, ore deposit pressure, coal pressure, to be out of shape etc. data, row relax of going forward side by side, with Binding experiment data-guiding seam mining.
Under water rock coupling physical model test condition, the simulation system that the utility model provides, to try one's best real simulated field seam mining mode, thus in research water-retaining production Coal Under layer mining active process roof and floor rock mass damaged with cranny development process and the research to colliery lower storage reservoir relevant issues in a distributed manner of Evolution, damaged rock mass slump mode and disturbed strata seepage characteristic change and evolution rule significant.
Extracting simulation mining pipe 5 in the utility model, for being extracted out from chamber 1 by simulation mining pipe 5, making it no longer support similar lithosphere 6, simulating reality seam mining.Machine can be adopted it to be extracted out from chamber 1, artificial mode also can be adopted it to be extracted out from chamber 1.
Preferably, as shown in Figure 1, above many simulation mining pipes 5, be provided with levelling layer of sand 7, for by levelling for the upper surface of many simulation mining pipes 5, be beneficial to follow-uply build similar lithosphere 6.
Preferably, levelling layer of sand 7 is made up of middle fine sand, can fill up the gap between adjacent simulation mining pipe 5, and upper surface is levelling.
Preferably, as Figure 1-4, simulate coal seam 4 and include at least three rows respectively towards the simulation mining pipe group 50 that the similar coal column 3 of both sides extends; Three row's simulation mining pipe group 50 stacked combination together.
Often arrange simulation mining pipe group 50 to be made up of many simulation mining pipes 5, and the simulation mining pipe 5 in two adjacent row's simulation mining pipe groups 50 is crisscross arranged.
That is to say, this simulation coal seam 4 is furnished with three row's simulation mining pipes 5 in the vertical direction, often arranges simulation mining pipe 5 and is referred to as simulation mining pipe group 50.When arranging, by stacked together for three row's simulation mining pipe groups 50.Certainly as required, row's simulation mining pipe 5 also only can be set and form simulation coal seam 4.
Simulation mining pipe 5 in upper and lower two-layer two adjacent row's simulation mining pipe groups 50 is crisscross arranged, that is, the below in the simulation mining pipe group 50 of lower floor or lower row between any two adjacent simulation mining pipes 5 has a simulation mining pipe 5 in the simulation mining pipe group 50 of a upper strata or upper row.Thus when making a simulation mining pipe 5 of row under extracting, the adjacent simulation mining pipe 5 on upper strata can and then get off in movement, the exploitation in simulated field coal seam as much as possible.
Preferably, as shown in Figure 3-4, simulation mining pipe 5 comprises the first simulation mining pipe 53 and the second simulation mining pipe 54, and wherein the diameter of the first simulation mining pipe 53 is greater than the diameter of the second simulation mining pipe 54.
Often arrange simulation mining pipe group 50 to form by many first simulation mining pipes 53 and the second simulation mining pipe 54, between two wherein often adjacent the first simulation mining pipes 53, be furnished with a second simulation mining pipe 54.
This is, the first arrangement of simulation mining pipe group 50:
The first simulation mining pipe 53 and the second simulation mining pipe 54 is arranged often arranging in simulation mining pipe group 50 in mode alternately, because both diameters are different, be similar to the jog in coal seam, and cause the change of the appearance when extracting different, the exploitation in simulated field coal seam better.
Preferably, the diameter of the first simulation mining pipe 53 is 20mm, and the diameter of the second simulation mining pipe 54 is 16mm.
Preferably, as shown in Figure 4, simulation mining pipe 5 comprises the first simulation mining pipe 53 and the second simulation mining pipe 54, and wherein the diameter of the first simulation mining pipe 53 is greater than the diameter of the second simulation mining pipe 54.Simulation mining pipe group 50 comprises the first simulation mining pipe group 51 be made up of many first simulation mining pipes 53 and the second simulation mining pipe group 52 be made up of many second simulation mining pipes 54; Wherein, be furnished with one between the first simulation mining pipe group 51 that every two rows are adjacent and ranked second simulation mining pipe group 52.
This is, the second arrangement of simulation mining pipe group 50:
The simulation mining pipe group be made up of many first simulation mining pipes 53 is referred to as the first simulation mining pipe group 51; The simulation mining pipe group be made up of many second simulation mining pipes 54 is referred to as the second simulation mining pipe group 52.
During combination, between the first simulation mining pipe group 51 that every two rows are adjacent, be furnished with one ranked second simulation mining pipe group 52, arrange with rough coal in similar coal seam or duff, the exploitation in simulated field coal seam better.
Preferably, simulation mining pipe 5 is polyvinyl chloride pipe, and it is polyvinyl chloride pipe particularly.Simulation mining pipe is set to the polyvinyl chloride pipe of modification, it has the advantages such as nonhazardous, intensity is high, easy to process, it can simulate seam mining, and has that easy construction is easy, the feature of flexible arrangement, simultaneously compressive strength high, stable not yielding, can submersible.
Preferably, as shown in Figure 1, above simulation mining pipe 5, build multi-layer phase like lithosphere 6, with the top lithosphere in simulating reality coal seam better, simulate seam mining better.
Thus, the simulation system that the utility model provides, can to Seam Mining process simulation, to studying, damaged and cranny development process and disturbed strata seepage characteristic change and evolution rule the research of roof and floor rock mass in water-retaining production Coal Under layer mining active process is significant.
The simulation system that the utility model provides is as follows to the step simulating seam mining:
Shown in composition graphs 1-4, step 1: build the similar seat earth 2 similar to the base plate in the coal seam for the treatment of simulation mining in the bottom of chamber 1.
Step 2: build the similar coal column 3 that the coal column at least two spaced coal seams to treating simulation mining is similar on similar seat earth 2.
Step 3: after similar seat earth 2 meets requirement of strength with similar coal column 3, arranges simulation coal seam 4 between adjacent two similar coal columns 3, and simulation coal seam 4 is rearranged by the simulation mining pipe 5 that many can be extracted.
Step 4: build the similar lithosphere 6 that at least one deck is similar to the top lithosphere in the coal seam for the treatment of simulation mining above simulation mining pipe 5.
Step 5: after similar lithosphere 6 meets requirement of strength, at the uniform velocity twitch simulation mining pipe 5 according to prefixed time interval, the exploitation in simulated field coal seam.
That is to say, it adopts following technical scheme to realize:
1, simulate coal seam to build by laying bricks or stones:
In model test casting process, carry out building of similar seat earth 1 and similar coal column 2 according to certain similar proportion.
After having built, and after treating that analog material possesses initial strength, can carry out simulating building by laying bricks or stones of coal seam 4.
Be staggered by many simulation mining pipes 5, the stable accumulation body being piled into certain altitude comes simulated field coal seam.
2, similar rock stratum is built:
Building of similar lithosphere 6 is carried out above the simulation mining pipe 5 of simulation 4 or many, coal seam.
3, coal seam simulation mining:
Treat that similar lithosphere 4 has all been built, and after reaching prescribed strength, can coal seam excavation simulation be carried out.Particularly, at the uniform velocity twitch simulation mining pipe 5 according to prefixed time interval order, can simulated field seam mining.
The simulation experiment method that the utility model provides, by adopting simulation mining pipe 5 to simulate by the simulation coal seam 4 of exploiting, the recovery process in the good simulated field coal seam of energy.Can by above-mentioned data collection process equipment, gather similar seat earth 2, similar coal column 3, simulation coal seam 4 and similar lithosphere 5 hydraulic pressure, ore deposit pressure, coal pressure, to be out of shape etc. data, row relax of going forward side by side, with Binding experiment data-guiding seam mining.
When the exploitation in simulated field coal seam, collect similar seat earth 2 by the data collection process equipment (not shown) be electrically connected with chamber, similar coal column 3, the hydraulic pressure of simulating coal seam 4 and similar lithosphere 5, coal press and deformation data, and the data collected are processed, with Binding experiment data-guiding seam mining.Above-mentioned data collection process equipment can be computer equipment.The data gathered, for studying the breakage of roof and floor rock mass and cranny development process and disturbed strata seepage characteristic change and evolution rule in water-retaining production Coal Under layer mining active process, are mined to reality and are had great importance.
As required, above-mentioned each technical scheme can be combined, to reach best-of-breed technology effect.
Above-described is only principle of the present utility model and preferred embodiment.It should be pointed out that for the person of ordinary skill of the art, on the basis of the utility model principle, other modification some can also be made, also should be considered as protection domain of the present utility model.
Claims (7)
1. for simulating a simulation system for seam mining, it is characterized in that, comprising chamber,
Similar seat earth has been built in the bottom of described chamber;
On described similar seat earth, at least two similar coal columns have been built in compartment of terrain;
Between adjacent two described similar coal columns, be provided with simulation coal seam, described simulation coal seam is rearranged by the simulation mining pipe that many can be extracted;
The similar lithosphere of at least one deck has been built above described simulation mining pipe.
2. simulation system according to claim 1, is characterized in that, above many described simulation mining pipes, be provided with levelling layer of sand.
3. simulation system according to claim 2, is characterized in that, described levelling layer of sand is made up of middle fine sand.
4. simulation system according to claim 1, is characterized in that, described simulation coal seam includes at least three rows respectively towards the simulation mining pipe group that the described similar coal column of both sides extends;
The described simulation mining pipe group stacked combination of three rows together;
Often arrange described simulation mining pipe group to be made up of many described simulation mining pipes, and the described simulation mining pipe of the adjacent described simulation mining Guan Zuzhong of two rows is crisscross arranged.
5. simulation system according to claim 4, is characterized in that, described simulation mining pipe comprises the first simulation mining pipe and the second simulation mining pipe, and the diameter of wherein said first simulation mining pipe is greater than the diameter of described second simulation mining pipe;
Often arrange described simulation mining pipe group by many described first simulation mining pipes and described second simulation mining pipe composition, between wherein often adjacent two described first simulation mining pipes, be furnished with a described second simulation mining pipe.
6. simulation system according to claim 4, is characterized in that, described simulation mining pipe comprises the first simulation mining pipe and the second simulation mining pipe, and the diameter of wherein said first simulation mining pipe is greater than the diameter of described second simulation mining pipe;
Described simulation mining pipe group comprises the first simulation mining pipe group be made up of many described first simulation mining pipes and the second simulation mining pipe group be made up of many described second simulation mining pipes;
Wherein, the described second simulation mining pipe group of a row is furnished with between the described first simulation mining pipe group that every two rows are adjacent.
7. simulation system according to claim 1, is characterized in that, described simulation mining pipe is polyvinyl chloride pipe.
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| CN201520733884.1U CN205120386U (en) | 2015-09-21 | 2015-09-21 | A analog system for simulating coal seam exploitation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105181372A (en) * | 2015-09-21 | 2015-12-23 | 中国神华能源股份有限公司 | Simulation system used for simulating coal mining and simulation test method |
| CN108169093A (en) * | 2017-11-29 | 2018-06-15 | 中国神华能源股份有限公司 | A kind of coal mine underground reservoir coefficient of storage assay method |
| CN108461030A (en) * | 2018-05-17 | 2018-08-28 | 中国矿业大学(北京) | A kind of teaching simulating device of thick seam slicing system |
| CN108766191A (en) * | 2018-05-17 | 2018-11-06 | 中国矿业大学(北京) | A kind of experimental simulation frame of multilevel unitized production |
| CN108766190A (en) * | 2018-05-17 | 2018-11-06 | 中国矿业大学(北京) | A kind of three-dimensional analog simulation system for simulating false roof |
| CN112485126A (en) * | 2020-11-23 | 2021-03-12 | 太原理工大学 | Three-dimensional simulation test system and method based on three-dimensional roadway arrangement |
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- 2015-09-21 CN CN201520733884.1U patent/CN205120386U/en active Active
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| CN105181372A (en) * | 2015-09-21 | 2015-12-23 | 中国神华能源股份有限公司 | Simulation system used for simulating coal mining and simulation test method |
| CN105181372B (en) * | 2015-09-21 | 2019-01-25 | 中国神华能源股份有限公司 | It is a kind of for simulating the simulation system and simulation experiment method of seam mining |
| CN108169093A (en) * | 2017-11-29 | 2018-06-15 | 中国神华能源股份有限公司 | A kind of coal mine underground reservoir coefficient of storage assay method |
| CN108169093B (en) * | 2017-11-29 | 2021-06-08 | 中国神华能源股份有限公司 | Method for measuring water storage coefficient of coal mine underground reservoir |
| CN108461030A (en) * | 2018-05-17 | 2018-08-28 | 中国矿业大学(北京) | A kind of teaching simulating device of thick seam slicing system |
| CN108766191A (en) * | 2018-05-17 | 2018-11-06 | 中国矿业大学(北京) | A kind of experimental simulation frame of multilevel unitized production |
| CN108766190A (en) * | 2018-05-17 | 2018-11-06 | 中国矿业大学(北京) | A kind of three-dimensional analog simulation system for simulating false roof |
| CN108461030B (en) * | 2018-05-17 | 2020-04-17 | 中国矿业大学(北京) | Teaching simulation device for layered mining of thick coal seam |
| CN112485126A (en) * | 2020-11-23 | 2021-03-12 | 太原理工大学 | Three-dimensional simulation test system and method based on three-dimensional roadway arrangement |
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