CN112901259A - Filling stope simulation device and method - Google Patents
Filling stope simulation device and method Download PDFInfo
- Publication number
- CN112901259A CN112901259A CN202110058744.9A CN202110058744A CN112901259A CN 112901259 A CN112901259 A CN 112901259A CN 202110058744 A CN202110058744 A CN 202110058744A CN 112901259 A CN112901259 A CN 112901259A
- Authority
- CN
- China
- Prior art keywords
- filling
- stope
- goaf
- simulation box
- simulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004088 simulation Methods 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000009826 distribution Methods 0.000 claims abstract description 12
- 238000009825 accumulation Methods 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 6
- 239000005341 toughened glass Substances 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims 1
- 238000005429 filling process Methods 0.000 abstract description 5
- 230000000740 bleeding effect Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000000945 filler Substances 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011005 laboratory method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The invention discloses a filling stope simulation device and a simulation method, wherein the filling stope simulation device comprises a goaf simulation box, a filling system, a temperature control system, a humidifying system and a data acquisition system; the method comprises the steps of injecting stirred slurry into a goaf simulation box, stopping discharging after a certain height is injected, after a filling body is solidified, opening a handheld three-dimensional scanner to scan the slope shape of the filling body, outputting a reconstructed model of the slope shape at a controller end in real time, researching the flowing rule and the accumulation shape of the slurry, and calculating the bleeding rate and the sinking rate of the slurry through the quality of water discharged by a drainage system. And after the goaf is full, opening the temperature control and humidification system to maintain the filling body in the goaf according to the actual internal temperature and humidity of the stope, removing the simulation box after a period of maintenance, drilling and coring the filling body in the goaf, and measuring the strength distribution of the filling body. The invention has simple operation and convenient use, and can reproduce the whole field filling process so as to improve the whole mine filling process.
Description
Technical Field
The invention belongs to a simulation filling mining method, and particularly relates to a filling stope simulation device and a simulation method.
Background
With the exhaustion of shallow resources, resource mining gradually progresses to deep parts, and the deep parts inevitably encounter problems such as high temperature, high earth pressure and the like. Many metal mines still adopt a stage open stope subsequent filling mining method, the stope height is usually 30-60 m, the volume of a filling body reaches tens of thousands of cubic meters, and the temperature and the humidity of the stope can be increased due to the existence of geothermy and underground water, so that certain negative effects are brought to the strength of the filling body. Many studies are conducted to determine the strength of the site filling body by a laboratory method for manufacturing a small test piece, and the method is too one-sided to reflect the actual strength of the site filling body, so that a large error exists. In the field filling process, due to different blanking points and blanking modes, slurry can generate different flowing rules and stacking forms, and as a result, the strength of filling bodies at different positions has larger difference. Therefore, the research on the influence rule of the feeding position, the feeding mode and the temperature change on the strength change of the on-site filling body is very necessary.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a filling stope simulation device and a simulation method, wherein the filling stope simulation device comprises a goaf simulation box, a filling system, a temperature control system, a humidifying system and a data acquisition system; the method comprises the steps of injecting stirred slurry into a goaf simulation box, stopping discharging after a certain height is injected, after a filling body is solidified, opening a handheld three-dimensional scanner to scan the slope shape of the filling body, outputting a reconstructed model of the slope shape at a controller end in real time, researching the flowing rule and the accumulation shape of the slurry, and calculating the bleeding rate and the sinking rate of the slurry through the quality of water discharged by a drainage system. And after the goaf is full, opening the temperature control and humidification system to maintain the filling body in the goaf according to the actual internal temperature and humidity of the stope, removing the simulation box after a period of maintenance, drilling and coring the filling body in the goaf, and measuring the strength distribution of the filling body. The entire process of field filling can be reproduced to improve the overall mine filling process.
In order to solve the technical problems, the invention adopts the technical scheme that:
a filling stope simulation device comprises a goaf simulation box, a filling system, a temperature control system, a humidification system and a data acquisition system;
the goaf simulation box is characterized in that beam structures for placing filling pipelines are arranged on the left side and the right side of the goaf simulation box, the beam structures are 20866type, the beam structures are movably arranged on a base of the device and cross over the goaf simulation box, and the upper part of the beam structures is provided with a movable fixing plate for fixing the filling pipelines;
the filling system comprises a stirring barrel, a filling pipeline and a pressure pump, wherein one end of the filling pipeline is connected with the stirring barrel, the other end of the filling pipeline is a slurry outlet end, the slurry outlet end is arranged on a fixed plate, and the pressure pump is connected in series on the filling pipeline;
the temperature control system comprises a resistance wire, a temperature control button and a display screen, the resistance wire is arranged on the device base, and the temperature control button and the display screen are arranged on one side edge of the device base;
the humidifying system comprises a plurality of nozzles and water pumps, the nozzles are arranged on the left side and the right side of the upper part of the right side beam structure of the goaf, and the nozzles are connected with the water pumps through pipelines;
the data acquisition system comprises a handheld three-dimensional scanner and a controller, wherein the handheld three-dimensional scanner is installed in the middle of the top of the right side beam structure, and the handheld three-dimensional scanner is electrically connected with the controller.
Furthermore, the base of the device is cuboid, a simulation box fixing groove is formed in the middle of the base, and the goaf simulation box is arranged in the simulation box fixing groove; the front side and the rear side of the base of the device are provided with slideways, and the bottom of the beam structure is provided with pulleys matched with the slideways.
Furthermore, the upper part of the beam structure is provided with a slideway, the bottom of the fixing plate is provided with a pulley, and the pulley is in sliding fit with the slideway.
Further, collecting space area simulation case left side and right side all are equipped with drainage system, and drainage system includes drain bar, water drainage tank, wash port, drain pipe, and the braided bag has been posted to the drain bar inboard, is equipped with a plurality of wash ports on the drain bar, and water drainage tank is located the drain bar bottom, and the wash port converges in water drainage tank, and water drainage tank is connected with drainage pipe.
Furthermore, grooves in different shapes for simulating the goaf are arranged in the goaf simulation box and on the upper portion of the goaf simulation box.
Furthermore, a hydraulic cylinder capable of being adjusted in a lifting mode is arranged on the lower portion of the beam structure.
Furthermore, the goaf simulation box is made of toughened glass, and scale values are engraved at the left end and the right end of the goaf simulation box.
Furthermore, the beam structure is limited through a beam structure fixing device, the beam structure fixing device mainly comprises a bolt and a fixing device, the fixing device is clamped on the slideway, and the bolt is arranged on the outer side of the fixing device.
Furthermore, the fixed plate is limited through a fixed plate fixing device, the fixed plate fixing device mainly comprises a bolt and a fixing device, the fixing device clamps the upper part of the beam structure, and the bolt is arranged on the outer side of the fixing device.
A filling stope simulation method comprises the following steps:
the method comprises the following steps: measuring the height, width, length and shape of a stope, reducing the height, width, length and shape in equal proportion, and determining the size and shape of the goaf simulation box according to the size and shape; determining a blanking point and a blanking mode of slurry according to the field working condition, determining the flow rate of the slurry of the stope, determining single filling or several times of filling of the stope, and calculating the filling height and the feeding concentration of each filling; determining the temperature and humidity change of a stope, and timely regulating and controlling the temperature and humidity of the goaf simulation box according to the temperature and humidity change;
step two: according to the size of a stope, the height, the length and the shape of the goaf simulation box are properly adjusted; calculating the mass of tailings, cement and water required by each layered filling body of the simulated stope according to the feed concentration of each layer of the stope, and adjusting the flow rate of slurry through a water pump; changing the pipeline arrangement position and the blanking mode, researching the influence degree of different filling modes on the slurry flowing rule and the strength distribution of a filling body, and providing a most applicable pipeline arrangement mode for a stope;
step three: filling by using a filling system, determining the filling height according to the surface scale of the simulation box, after one layer is filled, pushing the right side beam structure of the simulation box to scan the filling body and output a layered reconstruction model in real time after the filling body is solidified, and researching the influence degree of different blanking modes on the slurry flow rule and the stacking form; after the interval of 12-24 hours, adjusting the concentration of the slurry and continuing to inject the slurry into the next layer, after the simulation box is filled, maintaining the filling body in the simulation box according to the temperature and the humidity of the temperature and humidity adjustment simulation box of the stope, removing the toughened glass after maintaining for a period of time, drilling and coring the filling bodies at different positions, and researching the intensity distribution rule of the filling body.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
According to the invention, through the beam structures on the left side and the right side of the simulation box and the fixing devices, slurry can enter a goaf at any position and at any height, and the random switching between single-point blanking and multi-point blanking can be realized; the solidified filling body is scanned by using a handheld three-dimensional scanner, so that the influence degree of different feeding positions, feeding concentrations and feeding modes on the flow rule of slurry, the accumulation form and the strength distribution of the filling body can be researched.
After the simulation box is full of, the temperature of the simulation box can be changed by the adjustable temperature control system, so that the temperature of the simulation box is close to the temperature of a stope, the humidity in the simulation box is regulated and controlled by the humidification system so that the temperature of the simulation box is close to the humidity of the stope, and the influence rule of the change of the temperature and the humidity on the strength change of the filling body can be researched.
The device and the method can obtain the influence rules of different blanking points and blanking modes on the flow rule and the accumulation form of the slurry by combining the structures of three-dimensional scanning, filling simulation, water drainage, temperature control humidification and the like; the law of influence of different feed material concentrations on the flow mode and the accumulation form of the slurry can be obtained; the influence rule of different blanking points and blanking modes on the strength distribution of the filling body can be obtained; the influence rule of different temperatures and humidities on the strength change of the filling body can be obtained; the strength difference between the layered filling body and the non-layered filling body can be obtained. Compared with the prior art, the method is closer to field filling, the method is simple to operate, the obtained experimental data is closer to a field filling body, and the method can be widely applied to the field of filling.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic view of the overall structure of the filling stope simulation device of the present invention.
Figure 2 is a perspective view of the gob simulation box of the present invention.
Fig. 3 is a schematic view of the beam structure of the present invention.
Fig. 4 is a schematic structural view of the beam structure fixing device of the present invention.
Fig. 5 is a schematic structural view of a fixing device for fixing a plate according to the present invention.
Wherein: 1-a mixing tank, 2-a filling pipeline, 3-a pressure pump, 4-a hydraulic cylinder, 5-a beam structure, 6-a fixing plate, 7-a water injection pipeline, 8-a bolt, 9-a goaf simulation box, 10-a device base, 11-a slideway, 12-a resistance wire, 13-a beam structure fixing device, 14-a display screen, 15-a temperature control button, 16-a water drain hole, 17-a water bucket, 18-a water drain plate, 19-a spray head, 20-a handheld three-dimensional scanner, 21-a controller, 22-a woven bag, 23-a groove, 24-a pulley, 25-a water drain groove, 26-a fixing plate fixing device, 27-a simulation box fixing groove and 28-a baffle plate.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 5, the filling stope simulation device of the present invention includes a goaf simulation box 9, a filling system, a temperature control system, a humidification system, and a data acquisition system, wherein:
the left side and the right side of the goaf simulation box 9 are provided with beam structures 5 for placing the filling pipelines 2, the beam structures 5 are 20866type, and the beam structures 5 can be movably arranged on the device base 10 and cross over the goaf simulation box 9. The upper part of the beam structure 5 is provided with a movable fixing plate 6 for fixing the pipeline, the upper part of the beam structure 5 is provided with a slideway 11, and the fixing plate 6 is connected and moved in a sliding way through the slideway 11.
The device base 10 is cuboid, a simulation box fixing groove 27 is formed in the middle, and the goaf simulation box 9 is arranged in the simulation box fixing groove 27; the front side and the rear side of the device base 10 are provided with slideways 11, the bottom of the beam structure 5 is provided with pulleys 24, the pulleys 24 are matched with the slideways 11, the beam structure 5 can be pushed to slide along the slideways 11, the beam structure 5 can be fixed by adopting a fixing device after being pushed to a certain position, slurry can enter a goaf at any position, the position of the beam structure 5 can be fixed by using a beam structure fixing device 13 after the position is determined, the beam structure fixing device 13 mainly comprises bolts 8 and fixing devices, a gap is reserved between the slideway 11 of the device base 10 and the fixing devices, the fixing devices can clamp the slideway 11 through the gap, the bolts 8 are arranged on the outer side of the fixing devices, the bolts 8 are rotated to enable the bolts 8 to abut against the slideway 11, the fixing devices are fixed on the upper part of the slideway 11, the fixing devices are arranged at the front and the rear of the beam structure. The fixing plate 6 for fixing the filling pipeline 2 can also be provided with a pulley, the position of the fixing plate 6 can be changed by different pipeline diameters and different blanking points, and the plurality of fixing plates 6 correspond to the plurality of filling pipelines 2, so that multipoint blanking can be realized.
The filling system is used for injecting slurry into the goaf simulation box 9 and comprises a stirring barrel 1, a filling pipeline 2 and a pressure pump 3, one end of the filling pipeline 2 is connected with the stirring barrel 1, the other end of the filling pipeline is a slurry outlet end, the slurry outlet end is installed on a fixing plate 6, and the pressure pump 3 is connected with the filling pipeline 2 in series. The fixed plate 6 is a movable plate, the position of the fixed plate 6 can be changed to fill different positions, the fixed plate 6 is connected with the beam structure 5 through a fixed plate fixing device, the fixed plate fixing device mainly comprises bolts 8 and fixing devices, the fixing devices are used for clamping the upper part of the beam structure 5, the bolts 8 are arranged on the outer side of the fixing devices, the bolts 8 on the left side and the right side of the fixing devices are rotated to enable the bolts 8 to clamp the beam structure 5, the fixing devices are arranged on two sides of the fixed plate 6 to clamp the fixed plate 6, and the fixed position of the fixed plate 6 is fixed. The baffle 28 is arranged below the pipeline, so that the feeding can be stopped at any time, and the control of the flow of the filling material is favorably controlled by combining the control of the pressure pump 3. The filling system can simulate the influence law of filling at different positions of a stope and multi-point filling on the slurry flowing mode, the stacking form and the strength distribution of a filling body.
The temperature control system comprises a resistance wire 12, a temperature control button 15 and a display screen 14, wherein the resistance wire 12 is installed inside the device base 10, the temperature control button 15 and the display screen 14 are installed on one side edge of the device base 10, the internal temperature of the goaf can be adjusted through the temperature control button 15 and the display screen 14, and the influence rule of temperature change on the strength change of the filling body is researched.
The humidifying system comprises a spray head 19 and a water pump, wherein the spray head 19 is a plurality of spray heads 19 with extremely small pore diameters, the spray heads 19 are installed on the left side and the right side of the upper portion of the right side beam structure 5 of the goaf, the spray heads 19 are connected with the water pump through water injection pipelines 7, the water pump is adjusted to inject water into the spray heads 19, water in the spray heads 19 is sprayed out in a mist form, the water pump is adjusted to control the humidity in the simulation box, a concrete humidity measuring instrument is used for measuring the humidity of a filling body in the simulation box, the humidity is kept consistent with a mine stope as much as possible, and. And after the goaf is full, opening the temperature control and humidification system, and maintaining the filling body in the simulation box, so that the later-stage filling body strength measurement can obtain data which is closer to the filling body strength of the stope.
The data acquisition system is used for storing and acquiring the scanning result of the handheld three-dimensional scanner 20 on the filling body layering surface, outputting a reconstructed model of each layering surface of the filling body under the conditions of different discharging modes, discharging points and feeding concentrations in real time, and determining the flow rule of slurry. The data acquisition system comprises a handheld three-dimensional scanner 20 and a controller 21, wherein the handheld three-dimensional scanner 20 is installed at the middle position of the top of the right side beam structure 5, and the handheld three-dimensional scanner 20 is electrically connected with the controller 21. In cooperation with the movability of the beam structure 5, the filling bodies of different stratification planes can be scanned. The scanner is relatively low in price and convenient to disassemble, and after slurry is solidified, the beam structure 5 can be pushed to scan the whole goaf and output a filling body layered surface reconstruction model in real time.
Collecting space area simulation case 9 left side and right side all are equipped with drainage system, and drainage system includes drain bar 18, water drainage tank 25, wash port 16, drain pipe, and 18 inboard subsides of drain bar have braided bag 22, are equipped with a plurality of wash ports 16 on the drain bar 18, and water drainage tank 25 is located the 18 bottoms of drain bar, and wash port 16 converges in water drainage tank 25, and water drainage tank 25 is connected with drainage pipe. The slurry water is slightly filtered by the woven bag 22, flows out of the water discharge hole 16, is collected in the water discharge groove 25 at the bottom and is led out by the water discharge pipe, a water bucket 17 is arranged beside the water discharge pipe to contain the discharged water, the water secreted by the slurry can be smoothly discharged out of the goaf through the water discharge system, and the bleeding rate and the sinking rate of the slurry are calculated according to the quality of the discharged water.
In this example, the goaf simulation box 9 is provided with grooves 23 in different shapes in the inner part and the upper part, and the shape and the height of the goaf simulation box 9 can be adjusted according to the size of the actual goaf. The goaf simulation box 9 is made of toughened glass, grooves 23 in different shapes are formed in the simulation box and can be used for simulating goafs in different shapes, and grooves 23 are also formed in the upper portion of the simulation box and can be used for simulating goafs in different heights.
The hydraulic cylinder 4 capable of being adjusted in a lifting mode is arranged on the lower portion of the beam structure 5, the left beam structure 5 and the right beam structure 5 are provided with four telescopic hydraulic cylinders 4(4), and the adjustable hydraulic cylinders 4 are used for controlling the lifting of the beam structure 5 aiming at goafs with different heights so as to achieve filling with different heights. Scale values are engraved at the left end and the right end of the goaf simulation box 9, and the slurry feeding height and the sedimentation height of different positions of slurry can be determined according to the scale values.
The filling stope simulation method based on the filling stope simulation device comprises the following steps:
the method comprises the following steps: measuring the height, width, length and shape of the stope, reducing the height, width, length and shape in equal proportion, and determining the size and shape of the goaf simulation box 9 according to the reduced height, width, length and shape; determining a blanking point and a blanking mode of slurry according to the field working condition, determining the flow rate of the slurry of the stope, determining single filling or several times of filling of the stope, and calculating the filling height and the feeding concentration of each filling; determining the temperature and humidity change of a stope, and timely regulating and controlling the temperature and humidity of the goaf simulation box 9 according to the temperature and humidity change;
step two: the height, the length and the shape of the goaf simulation box 9 are properly adjusted according to the size of a stope; calculating the mass of tailings, cement and water required by each layered filling body of the simulated stope according to the feed concentration of each layer of the stope, and adjusting the flow rate of slurry through a water pump; the pipeline arrangement position and the blanking mode (single-point blanking or multi-point blanking) are changed, the influence degree of different filling modes on the slurry flowing rule and the strength distribution of the filling body is researched, and the most suitable pipeline arrangement mode is provided for a stope.
Step three: filling by using a filling system, determining the filling height according to the surface scale of the simulation box, after one layer is filled, pushing the right side beam structure 5 of the simulation box to scan the filling body and output a layered reconstruction model in real time after the filling body is solidified, and researching the influence degree of different blanking modes on the slurry flowing rule and the stacking form. After the interval of 12-24 hours, adjusting the concentration of the slurry and continuing to inject the slurry into the next layer, after the simulation box is filled, adjusting the temperature and the humidity of the simulation box according to the temperature and the humidity of the stope, and maintaining the filler in the simulation box (the influence rule of the change of the temperature and the humidity on the strength change of the filler can also be researched). And after maintaining for a period of time, removing the toughened glass, drilling and coring the filling bodies at different positions, and researching the intensity distribution rule of the filling bodies.
Example 1
With reference to the attached drawings 1-5, the run length of the simulated goaf of the experiment is about 368m, the width is about 107m, the stage height is about 83m, the goaf is filled in three times by adopting an empty field subsequent filling method due to the limitation of filling capacity and filling process, the concentration of slurry in the first layer is 76%, the concentration of slurry in the second layer is 70%, the concentration of slurry in the third layer is 76%, and the flow rate of the slurry is 140-200 m3/h。
Setting the simulation similarity ratio to be 1 according to the specific mine filling parameters: 100, determining the size of a goaf simulation box to be 3600mm multiplied by 1005mm multiplied by 800mm, the size of a base to be 4350mm multiplied by 1570mm multiplied by 250mm, and the size of a slide way to be 4350mm long and 346mm wide. And determining the flow rate of the slurry to be 3.80L/min according to the field filling working condition and the similarity ratio. Filling three times, wherein the filling height of each time is 366mm, the primary filling concentration is 76%, the secondary filling concentration is 70%, and the uppermost layer filling concentration is 76%.
And fixing a filling pipeline 2 on the upper part of a movable beam structure 5, adjusting the beam structures 5 on the left side and the right side of the simulation box according to the field working condition, feeding slurry into the goaf in a different position filling and multi-point filling mode, after the filling of one layer is finished, pushing the right beam structure 5 to solidify the filling body, scanning the whole goaf simulation box 9 by using a handheld three-dimensional scanner 20 on the right beam structure, and outputting a reconstructed model of the layered surface of the filling body in real time. And calculating the bleeding rate and the sinking rate of the slurry according to the water discharged from the goaf simulation box 9. After the goaf simulation box 9 is full of, the temperature control system and the humidification system are adjusted to maintain the filler in the simulation box, and the influence rule of different temperatures and humidities on the strength change of the filler is researched. And after a period of time, removing the goaf simulation box, drilling and coring filling bodies at different positions, researching the influence rules of different blanking positions, blanking modes and slurry concentrations on the slurry flow rule, the accumulation form and the filling body strength distribution, and finally providing a guidance function for determining the mine filling position and the filling mode.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A filling stope simulation device is characterized by comprising a goaf simulation box (9), a filling system, a temperature control system, a humidification system and a data acquisition system;
the goaf simulation box comprises a device base (10), a goaf simulation box (9), a beam structure (5) and a movable fixing plate (6), wherein the left side and the right side of the goaf simulation box (9) are provided with beam structures (5) for placing filling pipelines (2), and the beam structures (5) are of a shape of '20866';
the filling system comprises a stirring barrel (1), a filling pipeline (2) and a pressure pump (3), one end of the filling pipeline (2) is connected with the stirring barrel (1), the other end of the filling pipeline is a slurry outlet end, the slurry outlet end is arranged on a fixed plate (6), and the pressure pump (3) is connected on the filling pipeline (2) in series;
the temperature control system comprises a resistance wire (12), a temperature control button (15) and a display screen (14), the resistance wire (12) is installed on the device base (10), and the temperature control button (15) and the display screen (14) are installed on one side edge of the device base (10);
the humidifying system comprises a plurality of spray heads (19) and water pumps, the spray heads (19) are arranged on the left side and the right side of the upper part of the right beam structure (5) of the goaf, and the spray heads (19) are connected with the water pumps through water injection pipelines (7);
the data acquisition system comprises a handheld three-dimensional scanner (20) and a controller (21), wherein the handheld three-dimensional scanner (20) is installed in the middle of the top of the right side beam structure (5), and the handheld three-dimensional scanner (20) is electrically connected with the controller (21).
2. A filling stope simulation device according to claim 1, wherein the device base (10) is rectangular, a simulation box fixing groove (27) is formed in the middle, and the goaf simulation box (9) is arranged in the simulation box fixing groove (27); the device is characterized in that the front side and the rear side of the base (10) are provided with slideways (11), the bottom of the beam structure (5) is provided with pulleys (24), and the pulleys (24) are matched with the slideways (11).
3. A filling stope simulation device according to claim 1, wherein the upper part of the beam structure (5) is provided with a slideway (11), the bottom of the fixing plate (6) is provided with a pulley (24), and the pulley (24) is in sliding fit with the slideway (11).
4. The filling stope simulation device according to claim 1, wherein a drainage system is arranged on each of the left side and the right side of the goaf simulation box (9), the drainage system comprises a drainage plate (18), a drainage groove (25), drainage holes (16) and a drainage pipe, a woven bag (22) is attached to the inner side of the drainage plate (18), a plurality of drainage holes (16) are formed in the drainage plate (18), the drainage grooves (25) are located at the bottom of the drainage plate (18), the drainage holes (16) converge on the drainage grooves (25), and the drainage grooves (25) are connected with a drainage pipeline.
5. A filling stope simulation device according to claim 1, wherein the goaf simulation box (9) is provided with grooves (23) of different shapes for simulating goafs both inside and above.
6. A filling stope simulation device according to claim 1, wherein the lower part of the beam structure (5) is provided with a hydraulic cylinder (4) which can be adjusted in a lifting manner.
7. The filling stope simulation device according to claim 1, wherein the goaf simulation box (9) is made of tempered glass, and scale values are engraved on the left end and the right end of the goaf simulation box (9).
8. A filling stope simulation device according to claim 2, wherein the beam structure (5) is limited by a beam structure fixing device (13), the beam structure fixing device (13) mainly comprises a bolt (8) and a fixing device, the fixing device is clamped on the slideway (11), and the bolt (8) is arranged outside the fixing device.
9. A filling stope simulation device according to claim 3, wherein the fixing plate (6) is retained by fixing plate fixing means (26), the fixing plate fixing means (26) mainly consisting of bolts (8) and fixing means, the fixing means clamping the upper part of the beam structure (5), the bolts (8) being arranged outside the fixing means.
10. A filling stope simulation method is characterized by comprising the following steps:
the method comprises the following steps: measuring the height, width, length and shape of the stope, reducing the height, width, length and shape in equal proportion, and determining the size and shape of the goaf simulation box (9) according to the reduced height, width, length and shape; determining a blanking point and a blanking mode of slurry according to the field working condition, determining the flow rate of the slurry of the stope, determining single filling or several times of filling of the stope, and calculating the filling height and the feeding concentration of each filling; determining the temperature and humidity change of the stope, and timely regulating and controlling the temperature and humidity of the goaf simulation box (9) according to the temperature and humidity change;
step two: the height, the length and the shape of the goaf simulation box (9) are properly adjusted according to the size of a stope; calculating the mass of tailings, cement and water required by each layered filling body of the simulated stope according to the feed concentration of each layer of the stope, and adjusting the flow rate of slurry through a water pump; changing the pipeline arrangement position and the blanking mode, researching the influence degree of different filling modes on the slurry flowing rule and the strength distribution of a filling body, and providing a most applicable pipeline arrangement mode for a stope;
step three: filling by using a filling system, determining the filling height according to the surface scale of the simulation box, after one layer is filled, pushing a right side beam structure (5) of the simulation box to scan the filling body and output a layered surface reconstruction model in real time after the filling body is solidified, and researching the influence degree of different blanking modes on the flow rule and the accumulation form of the slurry; after the interval of 12-24 hours, adjusting the concentration of the slurry and continuing to inject the slurry into the next layer, after the simulation box is filled, maintaining the filling body in the simulation box according to the temperature and the humidity of the temperature and humidity adjustment simulation box of the stope, removing the toughened glass after maintaining for a period of time, drilling and coring the filling bodies at different positions, and researching the intensity distribution rule of the filling body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110058744.9A CN112901259A (en) | 2021-01-16 | 2021-01-16 | Filling stope simulation device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110058744.9A CN112901259A (en) | 2021-01-16 | 2021-01-16 | Filling stope simulation device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112901259A true CN112901259A (en) | 2021-06-04 |
Family
ID=76114070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110058744.9A Pending CN112901259A (en) | 2021-01-16 | 2021-01-16 | Filling stope simulation device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112901259A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405850A (en) * | 2021-06-24 | 2021-09-17 | 北京科技大学 | Slurry on-site sampling device in goaf filling process and use method |
| CN113791194A (en) * | 2021-09-22 | 2021-12-14 | 北京科技大学 | Filling material in-situ performance similar simulation experiment device and use method |
| CN114112802A (en) * | 2021-11-04 | 2022-03-01 | 中煤科工集团西安研究院有限公司 | Slurry forced diffusion rule testing device and method for goaf filling |
-
2021
- 2021-01-16 CN CN202110058744.9A patent/CN112901259A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405850A (en) * | 2021-06-24 | 2021-09-17 | 北京科技大学 | Slurry on-site sampling device in goaf filling process and use method |
| CN113791194A (en) * | 2021-09-22 | 2021-12-14 | 北京科技大学 | Filling material in-situ performance similar simulation experiment device and use method |
| CN114112802A (en) * | 2021-11-04 | 2022-03-01 | 中煤科工集团西安研究院有限公司 | Slurry forced diffusion rule testing device and method for goaf filling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112901259A (en) | Filling stope simulation device and method | |
| CN106814016A (en) | The analogy method of slurry filling imitation device | |
| CN214303934U (en) | Filling stope simulation device | |
| CN103558361A (en) | Monitoring system for migration of elements of nitrogen, phosphorus and the like in hydrologic cycle process of farmland soil | |
| CN109975518B (en) | Physical test device and test method for simulating sandy soil debris flow | |
| CN107700467A (en) | A kind of adjustable continuous rammer | |
| CN111553065B (en) | Experiment table and experiment method for simulating proppant transportation and laying in reservoir fracturing fracture | |
| CN111551691A (en) | Multifunctional side slope model test device | |
| CN202583039U (en) | Darcy percolation tester | |
| CN112695813B (en) | Visual composite foundation piling technology model test device and method | |
| CN112228032B (en) | Visual intelligent proppant pulse injection sand paving experimental device and method | |
| CN114518311B (en) | Visual simulation device capable of controlling coarse single-crack seepage and application method thereof | |
| CN109372476A (en) | A kind of production method of multi-functional fracture hole oil reservoir injecting physical model | |
| CN104712295A (en) | Visual horizontal well oil deposit sand filling physical model and system | |
| CN105043910A (en) | Underwater slope eroding tester under effect of reciprocating shifting waterhead | |
| CN203535040U (en) | Monitoring system for migration of elements of nitrogen and phosphorus in farmland soil hydrological cycle process | |
| CN109211603B (en) | Test device for simulating air plug formation and air accumulation and discharge characteristics | |
| CN209339937U (en) | A kind of novel probe method well pattern model waterflooding effect measuring device | |
| CN111521469A (en) | Model test device for three-degree-of-freedom manual preparation of foundation soil and working method | |
| CN108680724B (en) | It is a kind of for simulating the native case apparatus of furrow structure | |
| CN115479869A (en) | Test device and method for evaluating grouting performance effect under running water condition under simulation of multiple working conditions | |
| CN113188970B (en) | Variable cross-section test device and method for simulating slurry penetration film formation of slurry shield | |
| CN211206144U (en) | Fine particle migration tracer test device in simulation aquifer water pumping and injecting process | |
| CN112986101A (en) | Earth and rockfill dam sand gravel dam building material horizontal permeability characteristic test method | |
| CN111812009A (en) | Confined aquifer solute transport experimental device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |