CN110940791A - A portable filling material in-situ performance monitoring simulation device and using method - Google Patents
A portable filling material in-situ performance monitoring simulation device and using method Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 118
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000012544 monitoring process Methods 0.000 title claims abstract description 27
- 238000004088 simulation Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000011810 insulating material Substances 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000012774 insulation material Substances 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 13
- 238000011160 research Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000000945 filler Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
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- 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
- G01N33/24—Earth materials
- G01N33/246—Earth materials for water content
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Abstract
本发明提供一种便携式充填料原位性能监测模拟装置及使用方法，属于充填技术原位性能监测模拟研究技术领域。该装置包括电脑、数据收集器、温度计、试验箱、固定圆柱桶和分体式料盒，分体式料盒位于试验箱水平和竖直中心位置，充填料充满分体式料盒，分体式料盒上下均有密封盖，上密封盖上有传感器线孔。固定圆柱桶位于分体式料盒外部，隔热材料紧密充填于固定圆柱桶和实验箱之间。传感器分别置于两个夹角60‑90°的空洞的传感器固定板上。数据收集器连接传感器，数据收集器连接电脑。该装置制作简单、体积小、智能性高、便于重复利用，适用于有色、黑色、黄金等各种矿山企业添加胶凝材料的充填料原位性能检测模拟测试。
The invention provides a portable filling material in-situ performance monitoring simulation device and a using method, belonging to the technical field of filling technology in-situ performance monitoring simulation research. The device includes a computer, a data collector, a thermometer, a test box, a fixed cylindrical barrel and a split-type material box. The split-type material box is located in the horizontal and vertical center of the test box, and the filling material fills the split-type material box. All have sealing covers, and there are sensor wire holes on the upper sealing cover. The fixed cylindrical barrel is located outside the split material box, and the heat insulating material is tightly filled between the fixed cylindrical barrel and the experimental box. The sensors are respectively placed on two hollow sensor fixing plates with an included angle of 60-90°. The data collector is connected to the sensor, and the data collector is connected to the computer. The device is simple to manufacture, small in size, high in intelligence, and easy to reuse. It is suitable for in-situ performance testing and simulation testing of filling materials added with cementitious materials in various mining enterprises such as non-ferrous, black and gold.
Description
Technical Field
The invention relates to the technical field of filling technology in-situ monitoring simulation research, in particular to a portable filling material in-situ performance monitoring simulation device and a using method thereof.
Background
Deep mining is an inevitable trend in mine development as shallow resources are depleted. The open stope method and the caving method in the three mining methods cannot be used for deep mining, and only the filling mining method can be used. The filling mining method is developed for more than half a century in China, and can effectively coordinate the problems of tailing ecological pollution and underground dead zone safety, so that the purposes of 'disaster control by waste' and green mining are achieved, and the filling technology is mature in application and more mines are used at present.
Regardless of the filling method, the final purpose is to serve the mining requirements, i.e. the filling material is solidified to close the goaf, so as to create a safer mining environment, thereby recovering more mineral resources. Once the filling materials enter the empty area, the 'black box' curing era is started, the curing process is complex, the filling materials cannot be foreseen and regulated, the traditional filling and curing effect evaluation depends on the indoor terminal strength and engineering experience, and the strength test is generally carried out on the filling body of a certain specific curing age. In actual mining, because of different mining methods, the filling and solidifying body needs to have the functions of self-supporting, supporting surrounding rocks and the like, and the time for exposing stopes is different. If the intensity characteristics of the filling material curing process cannot be known and only a certain specific age research is performed, the real-time evaluation of stope structure safety, the timely adjustment of a mining and filling strategy and the like are very unfavorable.
Therefore, the invention provides the portable filling material in-situ performance monitoring simulation device and the use method thereof aiming at the defect that the filling material reaches the goaf and the performance evolution monitoring method thereof, which are beneficial to further enriching the filling theoretical basis, have important scientific values for in-situ performance monitoring and characterization in the filling material curing process and have wide engineering application prospects in the aspect of monitoring the mass tailing curing in-situ performance in China.
Disclosure of Invention
The invention aims to provide a portable filling material in-situ performance monitoring and simulating device and a using method thereof.
The device includes the computer, the data collector, the thermometer, the proof box, fixed cylinder bucket and split type magazine, split type magazine is located test box level and vertical central point and puts, the filling material is full of split type magazine, split type magazine upper portion sets up sealed lid, split type magazine lower part sets up sealed lid down, it has the sensor line hole to cover on the sealed, fixed cylinder bucket is located split type magazine outsidely, closely fill thermal insulation material between fixed cylinder bucket and the proof box, set up the sensor on the inside sensor fixed plate of split type magazine, data collector connects sensor and computer respectively, thermometer monitoring ambient temperature is placed in the proof box outside. The whole device is placed in a curing room.
Wherein, the top and the bottom of the split-type material box are wrapped with heat insulation materials. The heat-insulating material simulates the heat transfer condition of the surrounding rock of the filling material in the stope, so that the experimental result is closer to the actual condition, and the experimental research is convenient.
The inside of the split type material box is provided with a sensor fixing plate which is distributed with two cavities with an included angle of 60-90 degrees, and the sensors are fixed on the sensor fixing plate at the same height and have an included angle of 60-90 degrees.
The diameter of the split type material box is 20 cm-100 cm, and the height of the split type material box is 10 cm-50 cm. The material box is mainly used for containing filling materials, and in order to avoid the influence of longitudinal stress and place a sensor, the height-diameter ratio of the material box is less than or equal to 1: 2.
The split type material box consists of two semicircular cylinder walls, an upper bucket cover, a lower bucket cover and a sensor fixing plate.
The saturation rate of the filling material is 100% -105%, the water in the filling material is mainly related to the hydration reaction of the cement, and the evaporation of the water is very little because the slurry is sealed. After the slurry is poured into the material box, the hard columnar rod is adopted to guide out the air in the slurry, and the material box can be filled with the filling material. The distance between the surface of the filling material and the top of the split type material box is 1 cm-5 cm.
The heat insulating material is expanded foam or heat insulating cotton.
The method for applying the device comprises the following steps:
s1: filling a heat insulating material between the test box and the fixed cylinder, placing the split type material box in the fixed cylinder, fixing the sensor on the sensor fixing plate, and placing the sensor in the split type material box;
s2: pouring the prepared filling material into a split type material box, guiding out air in the slurry of the filling material by adopting a columnar iron rod, covering the split type material box by adopting a plastic film and a sealing cover, and covering the top of the split type material box by adopting a heat insulating material;
s3: connecting the sensor to a data collector, connecting the data collector to a computer, and starting to collect data;
s4: recording the temperature, the volume water content, the matrix suction force and the conductivity in the curing process at different curing times to finally obtain the in-situ performance parameters of the filling material, and providing a basis for the structural design of the filling body.
The proportion, the initial temperature, the curing temperature and the humidity of the filling materials are adjusted according to the needs.
The device can accurately measure and simulate the in-situ performance evolution of the filling material, and provides a basis for the in-situ performance evolution and the structure safety of the filling body. The invention has the following advantages: firstly, the filling material is sealed and insulated by adopting a split type material box. The sensor is convenient to take out after the experiment is finished, the problem that the sensor is difficult to safely take out after the filler is solidified is avoided, and the workload is greatly reduced, and unnecessary loss is caused due to misoperation. And secondly, the magazine adopts a small height-diameter ratio, so that the influence of longitudinal stress on the experiment is reduced, the actual condition of a stope is met, and the research on the in-situ performance of the stope is facilitated. And thirdly, the two sensors are arranged at the same height in the filling slurry and form an included angle of 60-90 degrees, so that the mutual influence among the sensors is reduced, the errors caused by measuring the slurries with different heights are avoided, and the experimental precision is higher.
The technical scheme of the invention has the following beneficial effects:
in the above scheme, the device is simple to manufacture, convenient to operate, and less influenced by external environment, and is suitable for site testing and laboratory testing of a mine stope. The device has the characteristics of convenient use and recovery, no need of human intervention in the measurement and use process, simulation of stope filling body conditions and the like, and provides scientific basis for researching and designing a filling body structure and the safety of the filling body structure by monitoring the filling material in-situ performances such as the suction force of a matrix, the volume water content, the conductivity, the temperature and the like. The method can be widely used in mines adopting a filling mining method, the stability of stopes is improved, and the filling cost is reduced.
Drawings
FIG. 1 is a schematic view of a portable filler in-situ performance monitoring simulation apparatus according to the present invention;
fig. 2 is a detail view of a split-type material box of the portable filler in-situ performance monitoring simulation device, wherein (a) is a front view, (b) is a left view, and (c) is a top view.
Wherein: 1-a computer; 2-a data collector; 3-a thermometer; 4-test chamber; 5-heat insulating material; 6-fixing the cylindrical barrel; 7-upper sealing cover; 8-lower sealing cover; 9-a sensor; 10-a sensor wire hole; 11-sensor fixing plate; 12-a void; 13-filling material; 14-split type cartridge.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a portable filling material in-situ performance monitoring simulation device and a using method thereof.
As shown in fig. 1, the device includes computer 1, data collector 2, thermometer 3, proof box 4, fixed cylinder bucket 6 and split type magazine 14, split type magazine 14 is located 4 levels of proof box and vertical central point and puts, packing material 13 is full of split type magazine 14, as shown in fig. 2, split type magazine 14 upper portion sets up sealed lid 7, split type magazine 14 lower part sets up sealed lid 8 down, there is sensor line hole 10 on the sealed lid 7 of going up, fixed cylinder bucket 6 is located split type magazine 14 outsidely, closely fill thermal insulation material 5 between fixed cylinder bucket 6 and the proof box 4, set up sensor 9 on the inside sensor fixed plate 11 of split type magazine 14, sensor 9 and computer 1 are connected respectively to data collector 2, thermometer 3 monitoring ambient temperature is placed in the proof box 4 outside. The split-type magazine 14 is covered with an insulating material 5 at the top and bottom.
The inside of the split type material box 14 is provided with a sensor fixing plate 11 which is distributed with two cavities 12 with an included angle of 60-90 degrees, and the sensors 9 are fixed on the sensor fixing plate 11 at the same height and have an included angle of 60-90 degrees.
The diameter of the split type material box 14 is 20 cm-100 cm, and the height is 10 cm-50 cm.
The split type material box 14 consists of two semicircular cylinder walls, an upper bucket cover, a lower bucket cover and a sensor fixing plate 11. The material box is mainly used for containing filling materials, and is used for avoiding the influence of longitudinal stress and placing a sensor, so that the height-diameter ratio of the material box is less than or equal to 1: 2.
The saturation rate of the filling material 13 is 100% -105%, the water in the filling material is mainly related to the hydration reaction of the cement, and the evaporation of the water is very little because of the sealing of the slurry. After the slurry is poured into the material box, the hard columnar rod is adopted to guide out the air in the slurry, and the material box can be filled with the filling material. The distance between the surface of the filling material 13 and the top of the split type material box 14 is 1 cm-5 cm.
The heat insulating material 5 is expanded foam or heat insulating cotton. Heat insulating material is closely knit full of between proof box and fixed cylinder bucket, and the simulation filling material is in the stope country rock heat transfer condition, makes the experimental result more close to actual conditions, makes things convenient for experimental study.
The space between the inside of the test box 4 and the fixed cylindrical barrel 6 is tightly filled with heat insulation materials, and the test box 4 is arranged in a curing room.
The sensor monitors the in-situ performances of internal temperature, volume water content, matrix suction, conductivity and the like in the process of maintaining the filling material, and is used for monitoring the in-situ performances in the process of cementing and curing the filling material. In order to avoid the problem of inconsistent performance of the filling materials with different heights, the sensors are arranged at the same height.
The sensor fixing plate is mainly used for fixing the sensor and has the same height as the split type material box. In order to avoid the influence caused by the height difference of the two sensors, two sensor holes with an included angle of 60-90 degrees are formed in the middle of the sensor fixing plate at the same height, and the length range of the sensor fixing plate is 10-30 cm and the height range of the sensor fixing plate is 10-50 cm according to the different heights of the split type material boxes.
The data acquisition unit is mainly used for acquiring sensor data and adopts a data acquisition unit matched with the sensor.
The computer is mainly used for controlling the data acquisition unit, is provided with a corresponding control program of the data acquisition unit, can adjust the frequency of data acquisition of the data acquisition unit, and can also monitor the evolution of internal parameters of the filling slurry in real time.
The sealing material is mainly used for fixing the sensor; prevent the water loss of the flavoring materials caused by the sealing cover, the cylinder wall, the sensor hole and the sealing cover hole, and simulate the sealed environment of a stope.
The thermometer is mainly used for measuring the room temperature of the box body of the test box, and avoids the influence of extreme external temperature on the curing process of the filling material.
The method for applying the device comprises the following steps:
s1: filling a heat insulating material 5 between the test box 4 and the fixed cylindrical barrel 11, placing the split type material box 14 in the fixed cylindrical barrel 11, fixing the sensor 9 on the sensor fixing plate 11, and placing the sensor in the split type material box 14;
s2: pouring the prepared filling materials 13 into the split type material box 14, guiding out air in the filling material slurry by adopting a columnar iron rod, covering the split type material box 14 by adopting a plastic film and a sealing cover, and covering the top of the split type material box 14 by adopting a heat insulating material;
s3: connecting the sensor 9 to the data collector 2, connecting the data collector 2 to the computer 1, and starting to collect data;
s4: recording the temperature, the volume water content, the matrix suction force and the conductivity in the curing process at different curing times to finally obtain the in-situ performance parameters of the filling material, and providing a basis for the structural design of the filling body.
The proportion, initial temperature, curing temperature and humidity of the filler 13 are adjusted as required.
In a specific application, firstly, the heat insulating material 5 is densely filled between the fixed cylindrical barrel 6 and the box body of the test box 4, the two semicircular barrel walls are combined together, and the bottom sealing cover is covered. Then, the sensor 9 is fixed on the sensor fixing plate 11, a gap between the sensor and the sensor fixing plate is sealed by a sealing material, and the sensor is placed in the split type material box 14 in a manner of being tightly attached to the cylinder wall. Pouring the prepared filling slurry into a split type material box, guiding out air in the slurry by adopting a columnar hard tamping rod, covering an upper sealing cover 7, leading out a sensor connecting wire from a sensor wire hole 10 reserved in the upper cover, and sealing the reserved hole and a gap between the upper sealing cover and the wall of the cylinder by using a sealing material. The sensor 9 is connected to the data collector 2, and the data collector 2 is connected to the computer 1 to start collecting data. Recording the environmental temperature in the maintenance process, observing the slurry temperature, the volume water content, the matrix suction, the conductivity and other properties in the maintenance process, finally obtaining relevant parameters, and providing a basis for the filling slurry proportion and the structural design. The proportion of the filling slurry, the initial environmental temperature, the humidity and the like are adjustable, and the research on the in-situ performance of the filling slurry under different material proportions and different environmental conditions can be realized.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113791107A (en) * | 2021-09-30 | 2021-12-14 | 武汉三源特种建材有限责任公司 | Tailing filling body monitoring method |
| CN117782229A (en) * | 2024-02-27 | 2024-03-29 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Indoor wireless monitoring device and method for hydration temperature and humidity of mine filling material |
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