CN109681268A - It is a kind of for simulating the laboratory experiment method of Underground Metallic Mines stope filling process - Google Patents
It is a kind of for simulating the laboratory experiment method of Underground Metallic Mines stope filling process Download PDFInfo
- Publication number
- CN109681268A CN109681268A CN201910084118.XA CN201910084118A CN109681268A CN 109681268 A CN109681268 A CN 109681268A CN 201910084118 A CN201910084118 A CN 201910084118A CN 109681268 A CN109681268 A CN 109681268A
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- China
- Prior art keywords
- slurries
- collecting cassette
- mold
- pedestal
- simulating
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8411—Application to online plant, process monitoring
Abstract
The present invention relates to a kind of for simulating the laboratory experiment method of Underground Metallic Mines stope filling process, laboratory testing rig includes pedestal, counterweight is provided on pedestal, slurries collecting cassette is provided on the upside of pedestal, support rod is fixed on rear side of slurries collecting cassette, support rod top is provided with energy-saving lamp and has camera, Grouting Pipe is arranged in the top of slurries collecting cassette, mold box is provided on supporting clapboard, liquid collecting cassette is provided with liquid outlet mechanism, it is additionally provided with controller on slurries collecting cassette: opening the total lock of power supply, energy-saving lamp lights；Adjust counterweight；Grouting Pipe is connected with shotcrete pipe, opens controller；Control water valve opening degree；After slurries flow into slurries collecting cassette, water valve is closed；The flowing and precipitation process of camera record slurries；Mold box rises；Opening liquid outlet mechanism makes slurries flow into mold；After obturation fills with mold, liquid outlet mechanism is closed；Elevating mechanism moves down；It takes out mold and is placed on and conserved.The whole process of reproducible stope filling, to be improved to entire filling in mine technique.
Description
Technical field
The present invention relates to a kind of for simulating the laboratory experiment method of Underground Metallic Mines stope filling process.
Background technique
In underground mine filling technique, ground Filling Station is built in earth's surface, stowage unit, whipping process and entire filling
Preparing for material is more advanced transparent, but during filling material enters stope, stope relative closure, personnel in stowing operation
And equipment all cannot be introduced into, and also have no idea to be monitored the overall process of filling control；Either mine it is tailing-filled or
Consolidated fill, the ratio of sand account for major part, but during filling material flowing, since the specific gravity of sand is bigger, cement ratio
Weight is smaller, tailings can premature precipitating, cause the intensity of obturation uneven, front end intensity and rear end are strong in entire filling field
Degree has significant difference.Due to being totally-enclosed filling in stowing operation, there can not be one objectively to understand to the process of filling, also not have
There is method to make evaluation to the integral strength of obturation.
Summary of the invention
The purpose of the present invention is to provide a kind of for simulating the laboratory experiment side of Underground Metallic Mines stope filling process
Method advantageously accounts for the intensity detection of Mine Stope each position obturation in stowing operation, so as to entire filling in mine
Technique improves.
Technical program of the present invention lies in: it is a kind of for simulating the laboratory experiment side of Underground Metallic Mines stope filling process
Method, including the indoor experimental apparatus for simulating Underground Metallic Mines stope filling process, the laboratory testing rig includes tool
There is the pedestal of universal wheel, counterweight is provided on the pedestal, slurries collecting cassette, the slurries collecting cassette are provided on the upside of pedestal
Rear side be fixed with support rod, the support rod top is provided with energy-saving lamp, and the upper end of support rod is provided with cantilever lever, described outstanding
The cantilever end of armed lever is provided with camera, and the top side of the slurries collecting cassette is provided with the Grouting Pipe with water valve, described
The arrival end of Grouting Pipe is connected with shotcrete pipe, is provided between pedestal and slurries collecting cassette by elevating mechanism driving lifting
Supporting clapboard, laterally spaced on the supporting clapboard to be provided with mold box, the liquid collecting cassette is additionally provided with and mold box phase
To the liquid outlet mechanism for being applied to the injection slurries into mold box, the control for controlling elevating mechanism is additionally provided on slurries collecting cassette
Device processed, steps are as follows:
(1) the total lock of power supply is opened, the energy-saving lamp being mounted on support rod lights, and gets out pickup-light source for experimentation；
(2) weight device on adjustment base makes whole equipment be in balancing device；
(3) shotcrete pipe that Grouting Pipe and packing fluid flow is connected, opens simultaneously controller switches；
(4) water valve is opened, water valve opening degree is controlled according to slurry flow rate；
(5) after valve is opened, slurries flow into slurries collecting cassette, when slurries are after slurries collecting cassette runs up to certain position, close water
Valve；
(6) camera records the flowing and precipitation process of slurries during slip casting, and the arrangement for later experiments result provides figure
Piece and data；
(7) operation controller control hydraulic device driving elevating mechanism rises the mold box for filling mold；
(8) after automatic hoisting mechanism rises to designated position, opening liquid outlet mechanism makes slurries flow into mold, obtains different parts
Obturation；
(9) after obturation fills with mold, liquid outlet mechanism is closed；
(10) controlling hydraulic device by controller drives elevating mechanism to move down；
(11) it takes out mold and is placed on and conserved；
(12) equipment is pushed by another place position according to requirement of experiment, repeats step (1) to step (11) movement.
Further, the slurries collecting cassette is made of transparent material.
Further, drainage system is installed, the drainage system includes being set to slurries to adopt on the slurries collecting cassette
Collect the water tank of the box other side, the drainage hole for being passed through water tank, the lower part setting of the water tank are provided on slurries collecting cassette
There is the drainage pipeline with dynamoelectric water valve.
Further, the elevating mechanism includes the column being set between slurries collecting cassette surrounding and pedestal, the branch
The surrounding of support partition is slidably matched with column respectively, and the side of the pedestal is provided with lower baffle plate, is provided on the lower baffle plate
Locating slot is provided in the positioning by the extrusome of hydraulic device driving lifting, and the upper end of the extrusome is fixed with and props up
The overhead gage that support partition is fixedly connected.
Further, the liquid outlet mechanism includes the laterally spaced longitudinal tunnel being opened on slurries acquisition box plate,
The two sidewalls in the longitudinal direction tunnel are respectively arranged with longitudinal groove, and plate, the both sides of the plate are provided in longitudinal tunnel
It is respectively arranged with the protrusion matched with longitudinally-oriented recess；After automatic hoisting mechanism rises to design position, plate is slowly extracted out,
Slurries are made to flow into mold.
Compared with prior art, the invention has the following advantages that
1. solving metal mine deep under high-risk environment, still can acquire in different phase, different location
Obturation slurries, and then the intensity of obturation is detected, safety operation is realized, manpower and material resources are saved, is substantially increased automatic
Change, ensure that mine work is normally carried out in the case where guaranteeing both quality and quantity；
2. slurries can be recorded by camera captured in real-time to acquire situation, lifting means operating condition, pour obturation feelings
Condition, and computer terminal can be passed to by controller, it is convenient for real-time management, is judged by the image analysis of shooting and operate electricity
The operation of brain terminal progress next step；
3. the packing fluid in the filling field of different location can be acquired by terminal control, and then intensity detection is carried out, analysis is again
Existing stowing operation；
Judge to reach strength of filling mass by shaking the Strength Changes with obturation after stirring 4. can analyze by vibrator
To intensity requirement, to indicate in next step.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of elevating mechanism of the invention；
Fig. 3 is the partial structural diagram of elevating mechanism of the invention；
Fig. 4 is slurries collecting cassette drainage system figure of the invention；
Fig. 5 is mold box and mould mounting structure schematic diagram of the invention；
Fig. 6 is plate of the invention and slurries collecting cassette attachment structure schematic diagram；
Fig. 7 is camera support rod and column partial schematic diagram of the invention；
In figure: 1-universal wheel；2-pedestals；3-counterweights；4-hydraulic devices；5-columns；6-supporting clapboards；7-mold boxes；
8-plates；9-controllers；10-slurries collecting cassettes；11-water tanks；12-drainpipes；13-support rods；14-energy-saving lamps；
15-cameras；16-water valves；17-Grouting Pipes；18-shotcrete pipes；19-elevating mechanisms；
701-through-holes；702-molds；703-bolt and nuts；704-positioning plates；
801-longitudinal tunnels；802-longitudinal grooves；803-protrusions；804-column threaded holes；
1101-drainage holes；1102-dynamoelectric water valves；1104-diaphragm pressure sensors；
1301-cantilever levers；
1901-lower baffle plates；1902-extrusomes；1903-positioning plates；1905 are located at the cube of downside；1906-locating slots；
1907-are located at the cube of upside；1908-protrusive boards；1909-base apertures；1910-connecting holes.
Specific embodiment
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and cooperate attached drawing, make detailed
It is carefully described as follows, but the present invention is not limited thereto.
Referring to figs. 1 to Fig. 7
It is a kind of for simulating the laboratory experiment method of Underground Metallic Mines stope filling process, including for simulating metal sub-terrain mines
The indoor experimental apparatus of mountain stope filling process, the laboratory testing rig include the pedestal 2 with universal wheel 1, the pedestal
On be provided with counterweight 3, the counterweight is mounted on the side of pedestal weight light load-bearing.Slurries collecting cassette is provided on the upside of pedestal
10, be fixed with support rod 13 on rear side of the slurries collecting cassette, the support rod top is provided with energy-saving lamp 14, support rod it is upper
End is provided with cantilever lever, and the cantilever end of the cantilever lever is provided with camera 15.The top side of the slurries collecting cassette is arranged
There is the Grouting Pipe 17 with water valve 16, the arrival end of the Grouting Pipe is connected with shotcrete pipe 18, and the shotcrete pipe is plastic flexible pipe.
It is provided between pedestal and slurries collecting cassette by the supporting clapboard 6 of the driving lifting of elevating mechanism 19, on the supporting clapboard
Laterally spaced to be provided with mold box 7, the slurries collecting cassette is additionally provided with corresponding with mold box for infusing into mold box
Enter the liquid outlet mechanism of slurries, the controller 9 for controlling elevating mechanism be additionally provided on slurries collecting cassette, steps are as follows:
(1) the total lock of power supply is opened, the energy-saving lamp being mounted on support rod lights, and gets out pickup-light source for experimentation；
(2) weight device on adjustment base makes whole equipment be in balancing device；
(3) shotcrete pipe that Grouting Pipe and packing fluid flow is connected, opens simultaneously controller switches；
(4) water valve is opened, water valve opening degree is controlled according to slurry flow rate；
(5) after valve is opened, slurries flow into slurries collecting cassette, when slurries are after slurries collecting cassette runs up to certain position, close water
Valve；The drainage system installed on slurries collecting cassette another side can automatically discharge extra water；
(6) camera records the flowing and precipitation process of slurries during slip casting, and the arrangement for later experiments result provides figure
Piece and data；
(7) operation controller control hydraulic device driving elevating mechanism rises the mold box for filling mold；
(8) after automatic hoisting mechanism rises to designated position, opening liquid outlet mechanism makes slurries flow into mold, obtains different parts
Obturation；
(9) after obturation fills with mold, liquid outlet mechanism is closed；
(10) controlling hydraulic device by controller drives elevating mechanism to move down；
(11) it takes out mold and is placed on and conserved；
(12) equipment is pushed by another place position according to requirement of experiment, repeats step (1) to step (11) movement.
In the present embodiment, the camera is installed in the sleeve of cantilever lever cantilever end, the cantilever lever of the camera and
Support rod is welded by orthogonal frame.Slurries, which are recorded, by camera captured in real-time acquires situation, lifting means operation feelings
Condition pours obturation situation, and can be passed to computer terminal by controller, is convenient for real-time management, passes through the image of shooting
Analyze and determine the operation of simultaneously computer operating progress next step.The energy-saving lamp is mounted on support rod equipment oriented by bolt
Side.
In the present embodiment, since the density ratio cement grout of sand is big, sand can sink to bottom than faster, and slurries collecting cassette is
Transparent material can really restore the whole process of slurries flowing and precipitating.
In the present embodiment, drainage system is installed on the slurries collecting cassette, the drainage system includes being set to slurries
The water tank 11 of the collecting cassette other side is provided with the drainage hole 1101 for being passed through water tank on slurries collecting cassette, the water tank
Lower part is provided with the drainage pipeline 12 with dynamoelectric water valve 1102, in time discharges extra water.Setting in the water tank
There is the diaphragm pressure sensor 1104 of waterproof, to incude the hydraulic pressure in water tank, when water level rises to diaphragm pressure sensor
Position when, be mounted on inside water tank pressure inductor triggering, and then by computer terminal control be mounted on drainage pipeline
On dynamoelectric water valve be automatically closed.
In the present embodiment, the elevating mechanism includes the column 5 being set between slurries collecting cassette surrounding and pedestal, described
The surrounding of supporting clapboard is slidably matched with column respectively, the effect of the restricted supporting clapboard moving direction of column.The pedestal
Side is provided with lower baffle plate 1901, and locating slot 1906 is provided on the lower baffle plate, is provided in the locating slot by being mounted on
The extrusome 1902 of hydraulic device driving lifting in counterweight, the located plate in the lower end of extrusome are connected with locating slot, position
Plate is connected by bolt and nut with locating slot, and the located plate 1903 in the upper end of the extrusome is fixed with and the fixed company of supporting clapboard
The overhead gage connect.
In the present embodiment, four Angle Positions of the submounts dig a cube shallow slot, the column welding respectively
In cube shallow slot, the supporting clapboard corner location is opened there are four through-hole, and the column passes through through-hole, and the top of column adds
Work is helicitic texture, and slurries collecting cassette bottom is provided with the nut bore for being processed as matching with the helicitic texture of column top,
Post end is screwed by precession nut bore to be connected with slurries collecting cassette.
In the present embodiment, the extrusome includes the hollow cube for being gradually reduced and be in nested encryptions from top to bottom, position
It is protruded into the upper end of the cube 1905 of downside by the base apertures on the cube bottom plate of upside, cube positioned at downside
The upper end of body is provided with the protrusive board 1908 that area is greater than base apertures, is provided on the protrusive board for being connected with hydraulic device
Connecting hole 1910.Uppermost hollow cube is connected with hydraulic device.To pass through hydraulic device into hollow cubic body
It is flexible that injection hydraulic oil completes extrusome.
In the present embodiment, the liquid outlet mechanism includes the laterally spaced longitudinal tunnel being opened on slurries acquisition box plate
801, the two sidewalls in the longitudinal direction tunnel are respectively arranged with longitudinal groove 802, and plate 8, the plate are provided in longitudinal tunnel
Both sides be respectively arranged with the protrusion 803 matched with longitudinally-oriented recess.After automatic hoisting mechanism rises to design position, delay
Slow extraction plate, makes slurries flow into mold.
In the present embodiment, the located plate 704 of the mold box 7 and bolt and nut 703 are fixed on supporting clapboard, mold box
Mold 702 can be placed, the circumference of supporting baffle is provided with the through-hole 701 being slidably matched with column.
The foregoing is merely presently preferred embodiments of the present invention, for the ordinary skill in the art, according to this hair
Bright introduction designs a kind of various forms of laboratory experiment methods for simulating Underground Metallic Mines stope filling process simultaneously
Creative labor is not needed, it is all according to scope of the present invention patent institute without departing from the principles and spirit of the present invention
Equivalent change, modification, the replacement and variant made, are all covered by the present invention.
Claims (5)
1. it is a kind of for simulating the laboratory experiment method of Underground Metallic Mines stope filling process, including for simulating metal underground
The indoor experimental apparatus of Mine Stope stowing operation, the laboratory testing rig have the pedestal of universal wheel, set on the pedestal
It is equipped with counterweight, slurries collecting cassette is provided on the upside of pedestal, support rod, the support are fixed on rear side of the slurries collecting cassette
Bar top is provided with energy-saving lamp, and the upper end of support rod is provided with cantilever lever, and the cantilever end of the cantilever lever is provided with camera, institute
The top side for stating slurries collecting cassette is provided with the Grouting Pipe with water valve, and the arrival end of the Grouting Pipe is connected with shotcrete pipe,
It is provided between pedestal and slurries collecting cassette by the supporting clapboard of elevating mechanism driving lifting, along cross on the supporting clapboard
To mold box is arranged at intervals with, the liquid collecting cassette is additionally provided with corresponding with mold box for injecting slurries into mold box
Liquid outlet mechanism is additionally provided with the controller for controlling elevating mechanism on slurries collecting cassette, which is characterized in that steps are as follows:
(1) the total lock of power supply is opened, the energy-saving lamp being mounted on support rod lights, and gets out pickup-light source for experimentation；
(2) weight device on adjustment base makes whole equipment be in balancing device；
(3) shotcrete pipe that Grouting Pipe and packing fluid flow is connected, opens simultaneously controller switches；
(4) water valve is opened, water valve opening degree is controlled according to slurry flow rate；
(5) after valve is opened, slurries flow into slurries collecting cassette, when slurries are after slurries collecting cassette runs up to certain position, close water
Valve；
(6) camera records the flowing and precipitation process of slurries during slip casting, and the arrangement for later experiments result provides figure
Piece and data；
(7) operation controller control hydraulic device driving elevating mechanism rises the mold box for filling mold；
(8) after automatic hoisting mechanism rises to designated position, opening liquid outlet mechanism makes slurries flow into mold, obtains different parts
Obturation；
(9) after obturation fills with mold, liquid outlet mechanism is closed；
(10) controlling hydraulic device by controller drives elevating mechanism to move down；
(11) it takes out mold and is placed on and conserved；
(12) equipment is pushed by another place position according to requirement of experiment, repeats step (1) to step (11) movement.
2. it is according to claim 1 a kind of for simulating the laboratory experiment method of Underground Metallic Mines stope filling process,
It is characterized in that, the slurries collecting cassette is made of transparent material.
3. according to claim 1 or 2 a kind of for simulating the laboratory experiment side of Underground Metallic Mines stope filling process
Method, which is characterized in that drainage system is equipped on the slurries collecting cassette, the drainage system includes being set to slurries collecting cassette
The water tank of the other side is provided with the drainage hole for being passed through water tank on slurries collecting cassette, and the lower part of the water tank is provided with tool
There is the drainage pipeline of dynamoelectric water valve.
4. it is according to claim 1 a kind of for simulating the laboratory experiment method of Underground Metallic Mines stope filling process,
It is characterized in that, the elevating mechanism includes the column being set between slurries collecting cassette surrounding and pedestal, the supporting clapboard
Surrounding be slidably matched respectively with column, the side of the pedestal is provided with lower baffle plate, be provided with locating slot on the lower baffle plate,
It is provided in the positioning by the extrusome of hydraulic device driving lifting, the upper end of the extrusome is fixed with solid with supporting clapboard
Surely the overhead gage connected.
5. according to claim 1,2 or 4 a kind of for simulating the laboratory experiment of Underground Metallic Mines stope filling process
Method, which is characterized in that the liquid outlet mechanism includes the laterally spaced longitudinal tunnel being opened on slurries acquisition box plate, institute
The two sidewalls for stating longitudinal tunnel are respectively arranged with longitudinal groove, and plate, the two side portions of the plate are provided in longitudinal tunnel
It is not provided with the protrusion matched with longitudinally-oriented recess；After automatic hoisting mechanism rises to design position, plate is slowly extracted out, make
Slurries flow into mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084118.XA CN109681268B (en) | 2019-01-29 | 2019-01-29 | Indoor experiment method for simulating filling process of metal underground mine stope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084118.XA CN109681268B (en) | 2019-01-29 | 2019-01-29 | Indoor experiment method for simulating filling process of metal underground mine stope |
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| Publication Number | Publication Date |
|---|---|
| CN109681268A true CN109681268A (en) | 2019-04-26 |
| CN109681268B CN109681268B (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910084118.XA Active CN109681268B (en) | 2019-01-29 | 2019-01-29 | Indoor experiment method for simulating filling process of metal underground mine stope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067503A (en) * | 2020-09-11 | 2020-12-11 | 中国矿业大学 | Three-dimensional simulation experiment device and method for flow rule of overburden rock isolation grouting filling slurry |
| CN117451976A (en) * | 2023-12-25 | 2024-01-26 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Indoor experimental device for simulating filling of underground metal mine stope |
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| DE3932046A1 (en) * | 1989-09-26 | 1991-04-11 | Bergwerksverband Gmbh | Filling exhausted potassium mine cavities with dry wastes - pretreated with suspension or soln. of salt wastes |
| CN101749047A (en) * | 2009-12-16 | 2010-06-23 | 山东科技大学 | Paste filling simulation test system |
| CN105952452A (en) * | 2016-04-22 | 2016-09-21 | 中国矿业大学 | Oil bag type solid filling coal mining 3D physical analog simulation experimental device and method |
| CN106035008A (en) * | 2016-06-04 | 2016-10-26 | 陈继文 | Short-term automatic flower watering nursing machine for thin flower stand |
| CN106840977A (en) * | 2017-02-16 | 2017-06-13 | 华北科技学院 | Slurry filling imitation device |
| CN107620608A (en) * | 2017-09-27 | 2018-01-23 | 首钢集团有限公司 | A kind of ground retrofilling mine arrangement of mining area device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3932046A1 (en) * | 1989-09-26 | 1991-04-11 | Bergwerksverband Gmbh | Filling exhausted potassium mine cavities with dry wastes - pretreated with suspension or soln. of salt wastes |
| CN101749047A (en) * | 2009-12-16 | 2010-06-23 | 山东科技大学 | Paste filling simulation test system |
| CN105952452A (en) * | 2016-04-22 | 2016-09-21 | 中国矿业大学 | Oil bag type solid filling coal mining 3D physical analog simulation experimental device and method |
| CN106035008A (en) * | 2016-06-04 | 2016-10-26 | 陈继文 | Short-term automatic flower watering nursing machine for thin flower stand |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067503A (en) * | 2020-09-11 | 2020-12-11 | 中国矿业大学 | Three-dimensional simulation experiment device and method for flow rule of overburden rock isolation grouting filling slurry |
| CN117451976A (en) * | 2023-12-25 | 2024-01-26 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Indoor experimental device for simulating filling of underground metal mine stope |
| CN117451976B (en) * | 2023-12-25 | 2024-03-08 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Indoor experimental device for simulating filling of underground metal mine stope |
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| Publication number | Publication date |
|---|---|
| CN109681268B (en) | 2020-04-10 |
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