CN106128268A - The analog of a kind of actual ore body excavation and method - Google Patents
The analog of a kind of actual ore body excavation and method Download PDFInfo
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- CN106128268A CN106128268A CN201610708799.9A CN201610708799A CN106128268A CN 106128268 A CN106128268 A CN 106128268A CN 201610708799 A CN201610708799 A CN 201610708799A CN 106128268 A CN106128268 A CN 106128268A
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Abstract
The present invention relates to analog and method that a kind of actual ore body excavates, this device includes model casing, Orebody simulation box, drive system, model casing be according to actual mining area size reduction after five face closures upper opening of cube casing, and a side elevation lower end is provided with a rectangular opening that can extract Orebody simulation carton and crate body out, the crossbeam Orebody simulation box being provided with fixing angle pulley bottom model casing includes top coat casing and lower layer box body, lower layer box body level is stacked in model casing, and top coat casing is positioned over above lower layer box body；Drive system includes that the first electric capstan, the second electric capstan, fixed support and screw buckle, the first electric capstan and the second electric capstan are fixed on described fixed support, and screw buckle is installed in the enclosure side panel screwed hole of described Orebody simulation box.Use the present invention to carry out iron mine deep mining model investigation, disclose in non-pillar sublevel caving mining process surrouding rock deformation process in mining area under different exploitation rates.
Description
Technical field
The invention belongs to mining engineering, mining rock mass mechanics and Geotechnical Engineering field, be specifically related to a kind of actual ore deposit
The analog of body excavation and method.
Background technology
Some experts and scholars are when some problems of research engineering geology both at home and abroad, and such as engineering geological mechanical model is hit by a bullet
Plasticity and affecting laws, the construction response experiment of underground small-bore pipeline that finally Failure of Slopes is destroyed by failure stage, earthquake are ground
Study carefully, landslide mechanism research, the research etc. of sublevel caving method without sill pillar, model test is a kind of effective research method.In experiment
Under the conditions of room, experts and scholars carry out the research of phenomenon with (the most also the having amplification) model reduced, on engineering ground
Matter aspect achieves great successes.Deep Thick top coal drift surrouding rock stress Evolution that Lee's art is just studied and deformation behaviour,
Have developed large-scale geomechanical model pilot system, this system is by counterforce device, flexible well-distributed pressure charger, digital intelligent
Hydraulic control system and high accuracy polynary real-time monitoring system composition, the excavation in tunnel mainly uses artificial Drilling in this experiment
Mode is carried out；Li Liping have developed extension type length shovel and progressively excavates, to study large section tunnel weak broken wall rock
Gradually distortion process；Zhang Qiangyong is with Ding Ji colliery, Huainan Mining Area deep tunnel as engineering background, by analog material three-dimensional geological
Mechanical Model Test reproduces the forming process that deep laneway surrounding rock subregion ruptures, and uses tunneling boring artificial Drilling mode to carry out model
The excavation in tunnel, it is thus achieved that strain within roadway surrounding rock and displacement present crest and trough waveform change rule spaced apart
Rule；The deep laneway surrounding rock deformation failure mode of Cui Hongzhang research, the excavation in tunnel during simulation mine underground exploitation, model uses
Steel Ruler and self-control underground boring tool slowly excavate tunnel；Fang Yong wears double-deck goaf digging process model test under vcehicular tunnel
In, have employed hand excavation's mode, and in digging process, apply certain disturbance to simulate Blasting Excavation perturbation action；Dan Ren
In bright research stone drifting quasi-parallel cut blasting model test, have employed and arrange certain main undercut blast hole, control aperture spacing,
Digging process during actual tunnelling is simulated at big gun hole array pitch and main undercut blast hole angle of inclination；Room pretty circular shape tunnel country rock breaks
In bad pattern model experimental study, employing quartz sand material is as the motif material of cavern, by controlling quartz sand material
Outflow, simulate the excavation deformation process of actual cavern；Yuan Pu grinds in anchoring support deep tunnel Blasting Excavation model test
In studying carefully, points 2 separate explosions excavations, the certain dose of each Blasting Excavation electric cap, arrange according to borehole layout drawing, Blasting Excavation
Before, chisel digs model tunnel with controlled blasting funnel scope in advance；Meng Fanzhan combines mountain iron mine example at the moment, uses scuppit ore removal
Ore removal way, simulates sublevel caving method without sill pillar Ore Flows form；Liu Xiuxia, as a example by little Wang ditch iron mine, studies open air trestle
Mining optimization scheme, ore removal way have selected the mode of drawhole ore drawing；Zhang Dingbang uses iron ore body analog material to carry out mine
Simulation, is reproduced the exploitation overall process of strip mining transformation and sublevel caving method without sill pillar in geometric similarity ratio, and ore removal way selects people
Work drilling machine the most at the uniform velocity bores the mode of broken building block.
For the digging mode in model test, it is primarily present artificial Drilling (Steel Ruler, self-control underground boring tool etc.), slotting
The modes such as explosion, perforate ore drawing.These modes exist artificial perturbation, and compared with big, excavation or ore removal border is uncertain, be short of power
Problem.
Chinese scholars is correlation model assay device to mine open air trestle mining Design, and collapses bottom-column-free sectional
The mining process of the method that falls has carried out model investigation, but the excavation in model test or mining type exist artificial perturbation relatively
Greatly, excavation or the problem such as ore removal border is uncertain, be short of power, and set forth herein a kind of orebody mining or cavern excavation simulation examination
The actuating device tested, it is possible to effectively solve the problems referred to above.Document is not had to study for this actuating device.Therefore, logical
Cross and look into newly, do not find the achievement in research identical with this patent.
Summary of the invention
For the deficiencies in the prior art, the present invention proposes a kind of analog and the method that actual ore body excavates.
The analog that a kind of actual ore body excavates, including model casing, Orebody simulation box, drive system；
Described model casing, for according to the five face closures upper opening of cube casing after the size reduction of actual mining area, and
One side elevation lower end is provided with a rectangular opening that can extract Orebody simulation carton and crate body out, is provided with fixing turning bottom described model casing
To the crossbeam of pulley；
Described Orebody simulation box, including top coat casing and lower layer box body, described lower layer box body has multiple, and level is stacked in
In model casing, described top coat casing is positioned over above described lower layer box body；
Described top coat casing is the can of five one opening of face closure being made up of top panel and four side panels, described
Being welded with two safety hooks inside top coat casing top panel, described top coat casing side side panel is provided with two screw threads
Hole；
Described each lower layer box body is the drawer-like can of the two sides opening being made up of top panel and three side panels, described
Two U-shaped open slots coordinated with described top coat casing top panel safety hook position it are provided with on lower layer box body top panel,
The side side panel that described lower layer box body is relative with U-shaped open slot is provided with two screwed holes, the side panel of described lower layer box body
Two screwed holes identical with the two of top coat enclosure side panel screwed hole upright positions；
Described drive system includes the first electric capstan, the second electric capstan, fixed support and screw buckle, described first electricity
Dynamic capstan winch and the second electric capstan are fixed on described fixed support, and described screw buckle is installed on the casing of described Orebody simulation box
In side panel screwed hole.
Alternatively, during the steel strand wires of described first electric capstan connect the top coat casing screwed hole of described Orebody simulation box
Screw buckle up or down layer box body side panel screwed hole in screw buckle on, the steel strand wires of described second electric capstan are by described
Angle pulley on Orebody simulation box steel sole plate through under the circular hole and described Orebody simulation box of described model casing steel sole plate
The U-shaped open slot of layer box body connects the safety hook of the top coat casing of described Orebody simulation box, and described first electric capstan goes out
The horizontal level of line mouth is identical with described Orebody simulation He Zhong lower floor two screwed hole horizontal levels of enclosure side panel, and described second
The horizontal level of electric capstan line outlet is identical with tangent position under described simulation box steel sole plate angle pulley.
Alternatively, two side panels being not provided with screwed hole of described lower layer box body set with described lower square box touching position
Being equipped with ball, described lower layer box body and described lower square box touching position are provided with groove.
Alternatively, the top panel of described top coat casing and side panel connection, the top panel of lower layer box body and side
Plate connection is all welded with triangle gusset.
Alternatively, described model casing, place for therein and carry out the ore body mould after size reduction according to actual mining area
Intending box and ore body analog material, by extracting the lower layer box body of Orebody simulation box one by one, simulation mining area non-pillar sublevel caving is adopted
Ore deposit process ore body analog material deformation condition, STRESS VARIATION situation and seepage flow situation；
Described Orebody simulation box, for being positioned in model casing with ore body analog material, is extracting its described lower floor one by one
Mining area non-pillar sublevel caving mining process is simulated during casing；
Described drive system, for extracting the lower layer box body in Orebody simulation box, and extracts described lower layer box body rear dragging and drags
Lower layer box body above it drops down onto downwards at extracted lower floor box location.
The analog using actual ore body to excavate carries out the analogy method that actual ore body excavates, and comprises the following steps:
Step 1: determine mining area exploitation technique to be simulated, ore body distribution, geological structure are distributed；
Step 2: determine similar proportion according to in-situ data, determines size and the lower floor of Orebody simulation box according to similar proportion
Casing pile up the number of plies；
Step 3: determine the ginseng of ore body analog material according to mine geology condition, mining methods and the described model likelihood ratio
Number, the parameter of described ore body analog material includes the density of ore body analog material, elastic modelling quantity, uniaxial compressive strength, Nei Mocha
Angle and cohesive strength；
Step 4: pile up Orebody simulation box and ore body analog material according to the generalization of geological model in mining mining area；
Step 5: the lower layer box body in Orebody simulation box is set from model casing lower end by the steel strand wires of the second electric capstan
The rectangular opening put is extracted；
Step 6: the record deformation condition of ore body analog material, STRESS VARIATION situation and seepage flow situation, if being extracted down
The upper square box of layer box body can fall voluntarily, then perform step 8, otherwise, perform step 7；
Step 7: the steel strand wires of the first electric capstan pull the lower layer box body above it and drop down onto downwards and extracted down layer box body
Position；
Step 8: repetition step 4 is to step 7, and monitoring record orebody mining process, ore body has excavated.
The invention has the beneficial effects as follows:
The present invention proposes a kind of analog and the method that actual ore body excavates, and utilizes patent of the present invention to carry out iron mine deep
Production model experimental study, can reveal that mining area surrouding rock deformation under different exploitation rates in non-pillar sublevel caving mining process
Process；Formulate key area preventing and treating according to conclusion, propose reasonably prophylactico-therapeutic measures in mining process, it is to avoid because Deep Mine causes
Casualties and property loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of the analog that actual ore body excavates in the specific embodiment of the invention；
Wherein, wherein, 10-model casing, 11-rectangular opening, 30-drive system；
Fig. 2 is the 3 d effect graph of Orebody simulation box in the specific embodiment of the invention；
Wherein, 21-top coat casing, layer box body under 22-；
Fig. 3 is upward view and the rearview of top coat casing in the specific embodiment of the invention；
Wherein, (a) is the upward view of top coat casing, and (b) is the rearview of top coat casing；
21-top coat casing, 211-safety hook, 212-top coat casing screwed hole, 213-top coat casing triangle
Gusset；
Fig. 4 is upward view and the rearview of lower layer box body in the specific embodiment of the invention；
Wherein, (a) is the upward view of lower layer box body, and (b) is the rearview of lower layer box body；
Layer box body under 22-, 221-U type open slot, 222-top coat casing screwed hole, 223-top coat casing triangle muscle
Plate；
Fig. 5 is the 3 d effect graph of lower layer box body in the specific embodiment of the invention；
Wherein, 224-ball, 225-groove；
Fig. 6 is support bracket fastened 3 d effect graph in the specific embodiment of the invention；
Wherein, 33-fixed support；
Fig. 7 is drive system the first electric capstan connected mode schematic diagram and 3-D effect in the specific embodiment of the invention
Figure；
Wherein, (a) is drive system the first electric capstan connected mode schematic diagram, and (b) is drive system the first electric mincing
The 3 d effect graph of dish；
21-top coat casing, layer box body under 22-, 31-the first electric capstan, 33-fixed support, 34-screw buckle, 311-
The steel strand wires of the first electric capstan, 222-
Fig. 8 is drive system the second electric capstan connected mode schematic diagram and 3-D effect in the specific embodiment of the invention
Figure；
Wherein, (a) is drive system the second electric capstan connected mode schematic diagram, and (b) is drive system the second electric mincing
The 3 d effect graph of dish；
21-top coat casing, layer box body under 22-, 211-safety hook, 12-angle pulley, 13-crossbeam, 32-the second electricity
Dynamic capstan winch, 33-fixed support, the steel strand wires of 321-the second electric capstan；
Fig. 9 is the flow chart of the analogy method that actual ore body excavates in the specific embodiment of the invention；
Figure 10 is to pile up Orebody simulation box and the schematic diagram of ore body analog material in the specific embodiment of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the specific embodiment of the invention is described in detail.
The analog that a kind of actual ore body excavates, as it is shown in figure 1, include model casing 10, Orebody simulation box 20, power train
System 30.
Model casing 10, for according to the five face closures upper opening of cube casing after the size reduction of actual mining area, and one
Individual side elevation lower end is provided with a rectangular opening 11 that can extract Orebody simulation carton and crate body out, is provided with fixing turning bottom model casing 10
To the crossbeam 13 of pulley 12.
Model casing 10, places for therein and carries out the Orebody simulation box 20 after size reduction and ore deposit according to actual mining area
Body analog material, by extracting the lower layer box body 22 of Orebody simulation box one by one, simulation mining area non-pillar sublevel caving mining process
Ore body analog material deformation condition, STRESS VARIATION situation and seepage flow situation.
Orebody simulation box 20, as in figure 2 it is shown, include top coat casing 21 and lower layer box body 22, lower layer box body 22 has multiple,
Level is stacked in model casing 10, and top coat casing 21 is positioned over above lower layer box body 22.
Orebody simulation box 20, for being positioned in model casing 10 with ore body analog material, is extracting its lower layer box body one by one
Mining area non-pillar sublevel caving mining process is simulated when 22.
As it is shown on figure 3, top coat casing 21 is five one opening of face closure being made up of top panel and four side panels
Can, is welded with two safety hooks 211 inside top coat casing top panel, top coat casing 21 side side panel is provided with two
Individual screwed hole 212, the top panel of top coat casing and side panel connection are welded with triangle gusset 213.
As shown in Figure 4, lower layer box body 22 has multiple, and each lower layer box body 22 is all for being made up of top panel and three side panels
The drawer-like can of two sides opening, lower layer box body 22 top panel is provided with two and top coat casing 21 top panel safety hook
The U-shaped open slot 221 that 211 positions coordinate, the side side panel that lower layer box body 22 is relative with U-shaped open slot 221 is provided with two
Screwed hole 222, two screwed holes 222 of the side panel of lower layer box body hang down with two screwed holes 212 of top coat enclosure side panel
Straight position is identical, and the top panel of lower layer box body 22 and side panel connection are welded with triangle gusset 223.
As it is shown in figure 5, two side panels being not provided with screwed hole of lower layer box body 22 are arranged with lower square box touching position
There are ball 224, lower layer box body 22 that lower square box touching position is provided with groove 225.
As shown in Figure 6, drive system 30, for extracting the lower layer box body 22 in Orebody simulation box, and extracts lower layer box body
The lower layer box body 22 above it is pulled to falling at extracted lower floor box location after 22.
Drive system 30 includes first electric capstan the 31, second electric capstan 32, fixed support 33 and screw buckle 34, first
Electric capstan and the second electric capstan are fixed on fixed support 33, and screw buckle is installed on the end face of the casing of Orebody simulation box 20
On layer box body screwed hole 212 or lower layer box body screwed hole 222.
As it is shown in fig. 7, the steel strand wires 311 of the first electric capstan 31 connect top coat casing 21 screwed hole of Orebody simulation box
On the screw buckle 34 in screw buckle 34 up or down layer box body 22 side panel screwed hole 222 in 212, the first electric capstan 31 outlet
The horizontal level of mouth layer box body 22 side panel two screwed hole 222 horizontal levels lower with Orebody simulation box are identical, now open
First electric capstan 31 can produce horizontal force, can be extracted by lower layer box body 22 under the effect of this horizontal force, and thereon
Orebody simulation box 20 casing can fall under gravity, thus at Orebody simulation box 20 top generation one and the case extracted
The space that body size is identical, the most just achieves the simulation to non-pillar sublevel caving mining process.
As shown in Figure 8, after preventing the bottom of Orebody simulation box 20 from extracting, the Orebody simulation box 20 on top due to periphery
Ore body analog material produces frictional force, and cannot under deadweight under the possibility fallen, the steel strand wires 321 of the second electric capstan 32 pass through
Angle pulley 12 on model casing 10 bottom panel is through model casing bottom panel and the U-shaped open slot of the lower layer box body of Orebody simulation box
The safety hook 211 of the 221 top coat casings connecting Orebody simulation box, the horizontal level of the second electric capstan 32 line outlet and mould
12 times tangent positions of angle pulley on molding box 10 bottom panel are identical, so so that the horizontal force of the second electric capstan 32 turns
It is changed to vertical force.
The analog using actual ore body to excavate carry out actual ore body excavate analogy method, as it is shown in figure 9, include with
Lower step:
Step 1: determine mining area exploitation technique to be simulated, ore body distribution, geological structure are distributed.
In present embodiment, are ringed on three sides by mountains in certain mining excavating plant north, mining area, east, south, mountain ridge height above sea level 200-386m, west side
For intermountain level land, mean sea level 93m.Absolute altitude-183m at the bottom of hole, outdoor pit, stope long 1410m suitable for reading, wide 570～710m.
According to mine geology condition and mining methods, determine that mining depth is-500m.According to ore body bearing features, determine
Use non-pillar sublevel caving mining methods.Use height of lift 18m, the structural parameters of drift interval 20m, use vertical shaft, master
Ramp combined development mode.Ore deposit, below-183m deep thickness is between 20m～194m, and average thickness is 120m.
Step 2: determine similar proportion according to in-situ data, determines size and the lower floor of Orebody simulation box according to similar proportion
Casing pile up the number of plies.
In present embodiment, the first side elevation is vertically installed in the centre of base, forms two dimensional model and test, its
A size of length × width × height: 4000mm × 1000mm × 3500mm, according to mine geology condition, mining methods and model box size
Size determine the model likelihood ratio include geometric similarity than and the capacity likelihood ratio, the geometric similarity determined is more similar than for 200:1, unit weight
Ratio is 1.The number of plies is piled up: every layer of simulation carton and crate body according to what the model likelihood ratio determined the size of Orebody simulation box and lower layer box body
A size of length × width × height: 800 × 1000 × 90mm, totally 18 layers, wherein 15 layers are used for excavation simulation.
Step 3: determine the ginseng of ore body analog material according to mine geology condition, mining methods and the described model likelihood ratio
Number, the parameter of described ore body analog material includes the density of ore body analog material, elastic modelling quantity, uniaxial compressive strength, Nei Mocha
Angle and cohesive strength.
Step 4: pile up Orebody simulation box and ore body analog material according to the generalization of geological model in mining mining area.
In present embodiment, pile up Orebody simulation box and ore body analog material, as shown in Figure 10.
Step 5: the lower layer box body in Orebody simulation box is set from model casing lower end by the steel strand wires of the second electric capstan
The rectangular opening put is extracted.
Step 6: the record deformation condition of ore body analog material, STRESS VARIATION situation and seepage flow situation, if being extracted down
The upper square box of layer box body can fall voluntarily, then perform step 8, otherwise, perform step 7.
In present embodiment, use digital camera, distribution type fiber-optic/miniature dip circle, 3 D laser scanning and row
Ess-strain, apparent displacement and the hole end hydrops decrease speed of ore body analog material are entered by the technology such as configuration displacement meter (SAA)
Row monitoring.
Step 7: the steel strand wires of the first electric capstan pull the lower layer box body above it and drop down onto downwards and extracted down layer box body
Position.
Step 8: repetition step 4 is to step 7, and monitoring record orebody mining process, ore body has excavated.
Whole recovery process progressively pulls Orebody simulation box to simulate ore body digging process by drive system, obtains roadway
Deformation information, disclose deformation rule during orebody mining.
Claims (6)
1. the analog that an actual ore body excavates, it is characterised in that include model casing, Orebody simulation box, drive system；
Described model casing, for according to the five face closures upper opening of cube casing after the size reduction of actual mining area, and side
Facade lower end is provided with a rectangular opening that can extract Orebody simulation carton and crate body out, is provided with and fixing turns to cunning bottom described model casing
The crossbeam of wheel；
Described Orebody simulation box, including top coat casing and lower layer box body, described lower layer box body has multiple, and level is stacked in model
In case, described top coat casing is positioned over above described lower layer box body；
Described top coat casing is the can of five one opening of face closure being made up of top panel and four side panels, described end face
Being welded with two safety hooks inside layer box body top panel, described top coat casing side side panel is provided with two screwed holes；
Described each lower layer box body is the drawer-like can of the two sides opening being made up of top panel and three side panels, described lower floor
Two U-shaped open slots coordinated with described top coat casing top panel safety hook position it are provided with on casing top panel, described
The side side panel that lower layer box body is relative with U-shaped open slot is provided with two screwed holes, the two of the side panel of described lower layer box body
Individual screwed hole is identical with the two of top coat enclosure side panel screwed hole upright positions；
Described drive system includes the first electric capstan, the second electric capstan, fixed support and screw buckle, described first electric mincing
Dish and the second electric capstan are fixed on described fixed support, and described screw buckle is installed on the body side of described Orebody simulation box
In plate screwed hole.
The analog that actual ore body the most according to claim 1 excavates, it is characterised in that described first electric capstan
Steel strand wires connect the screw buckle up or down layer box body side panel screwed hole in the top coat casing screwed hole of described Orebody simulation box
In screw buckle on, the steel strand wires of described second electric capstan are by the angle pulley on described Orebody simulation box steel sole plate and wear
The U-shaped open slot crossing the circular hole of described model casing steel sole plate and the lower layer box body of described Orebody simulation box connects described Orebody simulation
Under in the safety hook of the top coat casing of box, the horizontal level of described first electric capstan line outlet and described Orebody simulation box
Two screwed hole horizontal levels of layer box body side panel are identical, the horizontal level of described second electric capstan line outlet and described simulation
Under box steel sole plate angle pulley, tangent position is identical.
The analog that actual ore body the most according to claim 1 excavates, it is characterised in that not setting of described lower layer box body
Two side panels putting screwed hole are provided with ball, described lower layer box body and described lower square chest with described lower square box touching position
Body touching position is provided with groove.
The analog that actual ore body the most according to claim 1 excavates, it is characterised in that described top coat casing upper
Panel is all welded with triangle gusset with top panel and the side panel connection of side panel connection, lower layer box body.
The analog that actual ore body the most according to claim 1 excavates, it is characterised in that described model casing, is used for
Its internal placement carries out the Orebody simulation box after size reduction and ore body analog material according to actual mining area, by extracting ore deposit one by one
The lower layer box body of body simulation box, simulation mining area non-pillar sublevel caving mining process ore body analog material deformation condition, stress become
Change situation and seepage flow situation；
Described Orebody simulation box, for being positioned in model casing with ore body analog material, is extracting its described lower layer box body one by one
Time simulation mining area non-pillar sublevel caving mining process；
Described drive system, for extracting the lower layer box body in Orebody simulation box, and extracts described lower layer box body rear dragging and drags on it
The lower layer box body of side drops down onto downwards at extracted lower floor box location.
6. the analog using the actual ore body described in claim 1 to excavate carries out the analogy method that actual ore body excavates, its
It is characterised by, comprises the following steps:
Step 1: determine mining area exploitation technique to be simulated, ore body distribution, geological structure are distributed；
Step 2: determine similar proportion according to in-situ data, determines the size of Orebody simulation box and lower layer box body according to similar proportion
Pile up the number of plies；
Step 3: determine the parameter of ore body analog material according to mine geology condition, mining methods and the described model likelihood ratio,
The parameter of described ore body analog material include the density of ore body analog material, elastic modelling quantity, uniaxial compressive strength, Nei Mocha angle and
Cohesive strength；
Step 4: pile up Orebody simulation box and ore body analog material according to the generalization of geological model in mining mining area；
Step 5: the lower layer box body in Orebody simulation box is arranged from model casing lower end by the steel strand wires of the second electric capstan
Rectangular opening is extracted；
Step 6: the record deformation condition of ore body analog material, STRESS VARIATION situation and seepage flow situation, if the lower floor's case extracted
The upper square box of body can fall voluntarily, then perform step 8, otherwise, perform step 7；
Step 7: the steel strand wires of the first electric capstan pull the lower layer box body above it and drop down onto downwards extracted lower floor box location
Place；
Step 8: repetition step 4 is to step 7, and monitoring record orebody mining process, ore body has excavated.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074469A (en) * | 2018-01-03 | 2018-05-25 | 北京科技大学 | The laboratory apparatus and experimental method of inclined middle thick, the thick ore body of Caving Method with Large Space back production |
| CN111537299A (en) * | 2020-04-28 | 2020-08-14 | 湘潭大学 | Rock stratum micro-disturbance continuous excavation method about similar physical model |
| CN114033494A (en) * | 2021-10-18 | 2022-02-11 | 中国矿业大学 | Simulation test system and test method based on top coal caving |
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| CN114033494B (en) * | 2021-10-18 | 2024-05-07 | 中国矿业大学 | Roof caving coal based simulation test system and test method |
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