CN113281102A - A get whitewashed device for coal mine tunnel geology - Google Patents
A get whitewashed device for coal mine tunnel geology Download PDFInfo
- Publication number
- CN113281102A CN113281102A CN202110351189.9A CN202110351189A CN113281102A CN 113281102 A CN113281102 A CN 113281102A CN 202110351189 A CN202110351189 A CN 202110351189A CN 113281102 A CN113281102 A CN 113281102A
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- China
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- fixedly connected
- block
- sliding
- base
- rod
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- 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.)
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- 239000003245 coal Substances 0.000 title claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 39
- 238000005553 drilling Methods 0.000 claims abstract description 19
- 238000000605 extraction Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 10
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
Abstract
The invention discloses a powder taking device for geological determination of a coal mine tunnel. The invention comprises a base, an organism is fixedly connected on the base, a fixed column is vertically and fixedly connected on the organism, a sliding plate is connected on the fixed column in a sliding way, a sliding hole used for sliding up and down is arranged on the sliding plate, a rotating mechanism matched with the sliding plate is arranged on the machine body, one side of the sliding plate is fixedly connected with an installation block, the mounting block is provided with a fixing mechanism for drilling, the base is provided with a sliding mechanism for taking powder, so that the drill rod arranged at one side of the machine body can move in the horizontal direction, thereby better completing drilling, and then under the action of the gas drainage pump, the device can drill holes in positions with different heights in the roadway to obtain powder, and is suitable for being applied to geological positions with different heights in the coal mine roadway to obtain powder, so that the situation of coal mine roadway geology can be accurately monitored finally.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a powder taking device for coal mine roadway geological determination.
Background
During the coal mine tunnel excavation operation, the coal powder is required to be extracted through the drill hole to monitor the geological condition, so that the coal powder extracting device for coal mine tunnel geological determination is an important coal mine device.
In the existing powder taking device for coal mine tunnel geological determination, a common coal mine drilling machine is used, and the coal mine drilling machine cannot be adjusted, so that the coal mine drilling machine can only drill holes at the position with the same height in a tunnel to take powder, and is not suitable for being applied to geological positions with different heights in the coal mine tunnel to take powder, thereby finally, the geological condition of the coal mine tunnel cannot be accurately monitored.
Disclosure of Invention
The invention aims to solve the following defects in the prior art that a coal mine drilling machine cannot be adjusted, only can drill holes at the same height in a tunnel to extract powder, and is not suitable for being applied to geological positions of different heights in a coal mine tunnel to extract powder, so that the geological condition of the coal mine tunnel cannot be accurately monitored finally, and the powder extraction device for coal mine tunnel geological determination is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a powder taking device for coal mine tunnel geological determination comprises a base, wherein an organism is fixedly connected to the base, a fixed column is vertically and fixedly connected on the machine body, a sliding plate is connected on the fixed column in a sliding way, the sliding plate is provided with a sliding hole for sliding up and down, the machine body is provided with a rotating mechanism used in cooperation with the sliding plate, one side of the sliding plate is fixedly connected with an installation block, the installation block is provided with a fixing mechanism for drilling, the machine body is fixedly connected with a sliding block, the base is fixedly connected with a fixed rod matched with the sliding block, the base is provided with a mounting cavity for mounting a fixed rod, the fixed rod is connected with the sliding block in a sliding way, the powder extraction device comprises a sliding block, a base and a movable block, wherein the sliding block is fixedly connected with the sliding block, the base is provided with a moving mechanism matched with the movable block, and the base is provided with a sliding mechanism used for taking powder.
Preferably, slewing mechanism includes the rack plate with sliding plate fixed connection, it is connected with the dwang to rotate on the organism, fixedly connected with and the rack plate cooperation gear that uses on the dwang, gear and rack plate meshing are connected.
Preferably, fixed establishment includes the drive block with installation piece joint, fixedly connected with is used for the drilling rod of drilling on the drive block, fixedly connected with mark chi on the organism, the pointer of the directional mark chi of fixedly connected with one end on the drive block.
Preferably, the moving mechanism comprises a rotating shaft rotatably connected with the moving block, one end of the rotating shaft, which is far away from the moving block, is rotatably connected with a sliding sleeve, the base is fixedly connected with a fixed block, the fixed block is slidably connected with the sliding sleeve, the sliding sleeve is fixedly connected with a clamping block, the base is slidably connected with a positioning block for limiting the sliding of the clamping block, and the positioning block is provided with a plurality of grooves for connecting the clamping block.
Preferably, slide mechanism include with base fixed connection's gas drainage pump, gas drainage pump one end is connected with the collection box that is used for collecting the powder through communicating pipe, gas drainage pump and collection box all with communicating pipe fixed connection, fixedly connected with hose on the gas drainage pump, fixedly connected with casing on the base, be equipped with a plurality of through-holes that are used for solid fixed flexible pipe on the casing.
Preferably, fixedly connected with is used for the first splint of fixed hose on the casing, threaded connection has the anchorage bar on the casing, anchorage bar one end is connected with the second splint through the turning block, second splint and turning block fixed connection, turning block and anchorage bar rotate to be connected.
Preferably, the base is transversely connected with a threaded rod in a rotating mode, the base is fixedly connected with a servo motor, and one end of the threaded rod is fixedly connected with a servo motor driving end.
Preferably, the threaded rod is symmetrically and threadedly connected with two rotating sleeves, each rotating sleeve is fixedly connected with a sliding rod, and the sliding rods are connected with the base in a sliding manner.
Preferably, the rotating sleeve is rotatably connected with a connecting rod, one end, far away from the rotating sleeve, of the connecting rod is rotatably connected with a moving column, the base is provided with a round hole used for moving the moving column to move left and right, and one end, far away from the base, of the moving column is rotatably connected with a pulley.
Compared with the prior art, the invention has the beneficial effects that:
1. the rotating rod is rotated, the gear rotates in the machine body along with the rotating rod due to the fixed connection of the rotating rod and the gear, the gear is meshed with the rack plate, the sliding plate fixedly connected with the rack plate moves in the vertical direction in the process of rotating the gear, the mounting block fixedly connected with the sliding plate also moves up and down along with the sliding plate, and the driving block clamped on the mounting block moves up and down, so that the vertical height of the drill rod on the driving block can be changed, the drill rod can drill holes at different heights, the vertical height of the drill rod can be accurately controlled by pointing the pointer fixedly connected with the driving block to the position of the marking ruler, the geological conditions at all heights can be accurately detected, the sliding sleeve and the fixing block slide relatively, and the rotating shaft rotatably connected with the sliding sleeve and the moving block rotate relatively, the organism also can remove at the horizontal direction to make organism one side set up the drilling rod and also can remove at the horizontal direction, thereby completion drilling that can be better, later under the effect of gas drainage pump, can drill the position of co-altitude in the tunnel and get the powder, be fit for using and get the powder in the geological position of each co-altitude in coal mine tunnel, thereby make finally can carry out accurate monitoring to the situation of coal mine tunnel geology.
2. Through the effect of gas drainage pump, can get the powder through the hose, the dust gets into in the collection box through communicating pipe, thereby can detect, carry out the joint through the different through-holes with on hose one end and the casing, later through the artificial tight pole that rotates, because tight pole and casing threaded connection, the tight pole pivoted will remove at the horizontal direction simultaneously, turning block one end fixed connection's second splint will remove to the direction that is close to the hose, thereby make the hose fix between first splint and second splint, be favorable to the better fixing of hose, thereby collect the dust of co-altitude.
Drawings
Fig. 1 is a schematic structural diagram of the front side of a powder taking device for geological determination of a coal mine tunnel, which is provided by the invention;
FIG. 2 is a schematic top view of a powder extraction device for geological determination of coal mine roadways according to the present invention;
FIG. 3 is a schematic side view of a powder extraction device for coal mine roadway geology according to the present invention;
FIG. 4 is a schematic view of a portion of the enlarged structure of A in FIG. 1;
fig. 5 is a partially enlarged structural diagram of B in fig. 3.
In the figure: the gas pumping and discharging device comprises a base 1, a gas pumping and discharging pump 2, a pulley 3, a sliding block 4, a moving block 5, a fixing rod 6, a moving column 7, a sliding sleeve 8, a clamping block 9, a positioning block 10, a fixing block 11, a rotating shaft 12, a gear 13, a rack plate 14, a machine body 15, a fixing column 16, a mounting block 17, a marking ruler 18, a sliding plate 19, a drill rod 20, a hose 21, a shell 22, a rotating sleeve 23, a threaded rod 24, a connecting rod 25, a driving block 26, a pointer 27, a collecting box 28, a fastening rod 29, a rotating block 30, a second clamping plate 31 and a first clamping plate 32.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a powder taking device for coal mine tunnel geological determination comprises a base 1, a machine body 15 is fixedly connected on the base 1, a fixed column 16 is vertically and fixedly connected on the machine body 15, a sliding plate 19 is slidably connected on the fixed column 16, a sliding hole for sliding up and down is arranged on the sliding plate 19, a rotating mechanism matched with the sliding plate 19 for use is arranged on the machine body 15, an installation block 17 is fixedly connected on one side of the sliding plate 19, a fixing mechanism for drilling is arranged on the installation block 17, a sliding block 4 is fixedly connected on the machine body 15, a fixed rod 6 matched with the sliding block 4 for use is fixedly connected on the base 1, an installation cavity for installing the fixed rod 6 is arranged on the base 1, the fixed rod 6 is slidably connected with the sliding block 4, a moving block 5 is fixedly connected on the sliding block 4, a moving mechanism matched with the moving block 5 for use is arranged on the base 1, and the rotating mechanism comprises a rack plate 14 fixedly connected with the sliding plate 19, the last rotation of organism 15 is connected with the dwang, and fixedly connected with and rack plate 14 cooperate gear 13 that uses on the dwang, and gear 13 and rack plate 14 meshing are connected, and fixed establishment includes the drive block 26 with installation piece 17 joint, and fixedly connected with is used for the drilling rod 20 of drilling on the drive block 26, and fixedly connected with has mark chi 18 on the organism 15, the pointer 27 of the directional mark chi 18 of fixedly connected with one end on the drive block 26.
The moving mechanism comprises a rotating shaft 12 which is rotationally connected with the moving block 5, one end of the rotating shaft 12, which is far away from the moving block 5, is rotationally connected with a sliding sleeve 8, a fixed block 11 is fixedly connected on the base 1, the fixed block 11 is slidably connected with the sliding sleeve 8, a clamping block 9 is fixedly connected on the sliding sleeve 8, a positioning block 10 which is used for limiting the sliding of the clamping block 9 is slidably connected on the base 1, a plurality of grooves which are used for connecting the clamping block 9 are arranged on the positioning block 10, the rotating rod is rotated manually, because the rotating rod is fixedly connected with the gear 13, the gear 13 can rotate in the machine body 15 along with the rotating rod, because the gear 13 is meshed with the rack plate 14, the sliding plate 19 which is fixedly connected on the rack plate 14 can move in the vertical direction in the rotating process of the gear 13, because the sliding hole on the sliding plate 19 is slidably connected with the fixed column 16 on the machine body 15, the fixed column 16 has a guiding function on the movement of the machine body 15, so that when the sliding plate 19 moves in the vertical direction, the moving track cannot be skewed, the mounting block 17 fixedly connected to the sliding plate 19 moves up and down along with the sliding plate, and the driving block 26 clamped on the mounting block 17 moves up and down, so that the vertical height of the drill rod 20 on the driving block 26 can be changed, and the drill rod 20 can be drilled due to the fact that a small motor for driving the drill rod 20 to rotate is installed in the driving block 26.
The vertical height of the drill rod 20 can be accurately controlled by pointing the position of the marking ruler 18 through the pointer 27 fixedly connected with the driving block 26, which is beneficial to accurately detecting geological conditions of various heights, the sliding sleeve 8 and the fixed block 11 are artificially slid relatively, and then the groove on the positioning block 10 is clamped with the clamping block 9, so that the sliding sleeve 8 cannot continuously slide, the rotating shaft 12 rotatably connected with the sliding sleeve 8 and the moving block 5 rotate relatively, the sliding block 4 slidably connected with the fixed rod 6 slides horizontally in the installation cavity, the machine body 15 can also move horizontally, the drill rod 20 arranged on one side of the machine body 15 can also move horizontally, drilling can be better completed, the base 1 is provided with a sliding mechanism for taking powder, the sliding mechanism comprises a gas drainage pump 2 fixedly connected with the base 1, 2 one end of gas drainage pump is connected with the collection box 28 that is used for collecting the powder through communicating pipe, gas drainage pump 2 and collection box 28 all with communicating pipe fixed connection, fixedly connected with hose 21 on the gas drainage pump 2, fixedly connected with casing 22 on the base 1, be equipped with a plurality of through-holes that are used for fixed hose 21 on the casing 22, fixedly connected with is used for the first splint 32 of fixed hose 21 on the casing 22, threaded connection has fastening rod 29 on the casing 22, fastening rod 29 one end is connected with second splint 31 through turning block 30, second splint 31 and turning block 30 fixed connection, turning block 30 and fastening rod 29 rotate the connection.
Under the action of the gas drainage pump 2, powder can be taken out through the hose 21, dust enters the collection box 28 through the communicating pipe, so that detection can be carried out, one end of the hose 21 is clamped with different through holes on the shell 22, then the fastening rod 29 is manually rotated, due to the threaded connection between the fastening rod 29 and the shell 22, the fastening rod 29 can move in the horizontal direction while rotating, the second clamping plate 31 fixedly connected with one end of the rotating block 30 can move towards the direction close to the hose 21, so that the hose 21 is fixed between the first clamping plate 32 and the second clamping plate 31, the hose 21 is favorably and better fixed, so that dust with different heights can be collected, the threaded rod 24 is transversely and rotatably connected on the base 1, the servo motor is fixedly connected on the base 1, one end of the threaded rod 24 is fixedly connected with the driving end of the servo motor, two rotating sleeves 23 are symmetrically and threadedly connected on the threaded rod 24, each rotating sleeve 23 is fixedly connected with a sliding rod, and the sliding rods are connected with the base 1 in a sliding mode.
The rotating sleeve 23 is rotatably connected with a connecting rod 25, one end of the connecting rod 25, which is far away from the rotating sleeve 23, is rotatably connected with a moving column 7, a round hole for left and right movement of the moving column 7 is arranged on the base 1, one end of the moving column 7, which is far away from the base 1, is rotatably connected with a pulley 3, under the driving of a servo motor, a threaded rod 24 and the base 1 can relatively rotate, because the rotating sleeve 23 is in threaded connection with the threaded rod 24, and the rotating sleeve 23 is limited by a sliding rod, the threaded rod 24 can move in the horizontal direction while rotating, the rotating sleeve 23 can relatively rotate with the connecting rod 25, the other end of the connecting rod 25 can relatively rotate with the moving column 7, meanwhile, the moving column 7 can relatively slide with the round hole on the base 1, so that the pulley 3 rotatably connected to one side of the moving column 7 moves, and the distance between the two pulleys 3 can be changed, so that the powder can be moved and taken in the laneways with different widths.
In the invention, the rotating rod is rotated artificially, the gear 13 rotates in the machine body 15 along with the rotating rod due to the fixed connection between the rotating rod and the gear 13, the gear 13 is meshed with the rack plate 14, the sliding plate 19 fixedly connected with the rack plate 14 moves in the vertical direction in the rotating process of the gear 13, the mounting block 17 fixedly connected with the sliding plate 19 moves up and down along with the sliding rod, the driving block 26 clamped on the mounting block 17 moves up and down, so that the vertical height of the drill rod 20 on the driving block 26 can be changed, the driving block 26 is internally provided with a small motor for driving the drill rod 20 to rotate, so that the drill rod 20 can drill, the pointer 27 fixedly connected with the driving block 26 points to the position of the marking ruler 18, the vertical height of the drill rod 20 can be controlled more accurately, and the geological conditions of all heights can be detected accurately, through taking place artificial relative slip with slip cap 8 and fixed block 11, the axis of rotation 12 that rotates the connection on the slip cap 8 will take place relative rotation with movable block 5, make simultaneously and take place to slide in the installation cavity horizontal direction with 6 sliding connection's of dead lever sliding block 4, organism 15 also can remove at the horizontal direction, thereby make 15 one side of organism set up drilling rod 20 and also can remove at the horizontal direction, thereby completion drilling that can be better, later under the effect of gas drainage pump 2, can drill the position of co-altitude not in the tunnel and get the powder.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The powder taking device for coal mine roadway geological determination comprises a base (1) and is characterized in that an organism (15) is fixedly connected to the base (1), a fixed column (16) is vertically and fixedly connected to the organism (15), a sliding plate (19) is connected to the fixed column (16) in a sliding mode, a sliding hole for sliding up and down is formed in the sliding plate (19), a rotating mechanism matched with the sliding plate (19) for use is arranged on the organism (15), a mounting block (17) is fixedly connected to one side of the sliding plate (19), a fixing mechanism for drilling is arranged on the mounting block (17), a sliding block (4) is fixedly connected to the organism (15), a fixed rod (6) matched with the sliding block (4) for use is fixedly connected to the base (1), a mounting cavity for mounting the fixed rod (6) is formed in the base (1), dead lever (6) and sliding block (4) sliding connection, fixedly connected with movable block (5) on sliding block (4), be equipped with the moving mechanism who uses with movable block (5) cooperation on base (1), be equipped with the sliding mechanism who is used for getting the powder on base (1), slewing mechanism includes rack plate (14) with sliding plate (19) fixed connection, it is connected with the dwang to rotate on organism (15), fixedly connected with gear (13) that use with rack plate (14) cooperation on the dwang, gear (13) and rack plate (14) meshing are connected.
2. The powder taking device for the coal mine roadway geological survey according to claim 1, characterized in that the fixing mechanism comprises a driving block (26) clamped with the mounting block (17), a drill rod (20) for drilling is fixedly connected to the driving block (26), a marking ruler (18) is fixedly connected to the machine body (15), and a pointer (27) with one end pointing to the marking ruler (18) is fixedly connected to the driving block (26).
3. The coal mine roadway geological survey powder taking device according to claim 1, wherein the moving mechanism comprises a rotating shaft (12) rotatably connected with the moving block (5), one end of the rotating shaft (12), which is far away from the moving block (5), is rotatably connected with a sliding sleeve (8), a fixed block (11) is fixedly connected to the base (1), the fixed block (11) is slidably connected with the sliding sleeve (8), a clamping block (9) is fixedly connected to the sliding sleeve (8), a positioning block (10) for limiting the sliding of the clamping block (9) is slidably connected to the base (1), and a plurality of grooves for connecting the clamping block (9) are formed in the positioning block (10).
4. The powder taking device for coal mine roadway geological determination according to claim 1, characterized in that the sliding mechanism comprises a gas drainage pump (2) fixedly connected with a base (1), one end of the gas drainage pump (2) is connected with a collection box (28) used for collecting powder through a communicating pipe, the gas drainage pump (2) and the collection box (28) are both fixedly connected with the communicating pipe, a hose (21) is fixedly connected onto the gas drainage pump (2), a shell (22) is fixedly connected onto the base (1), and a plurality of through holes used for fixing the hose (21) are formed in the shell (22).
5. The coal mine roadway geological survey powder extraction device according to claim 4, characterized in that a first clamping plate (32) for fixing the hose (21) is fixedly connected to the housing (22), a fastening rod (29) is connected to the housing (22) in a threaded manner, one end of the fastening rod (29) is connected with a second clamping plate (31) through a rotating block (30), the second clamping plate (31) is fixedly connected with the rotating block (30), and the rotating block (30) is rotatably connected with the fastening rod (29).
6. The powder taking device for the coal mine roadway geology according to claim 1, characterized in that a threaded rod (24) is transversely and rotatably connected to the base (1), a servo motor is fixedly connected to the base (1), and one end of the threaded rod (24) is fixedly connected with a servo motor driving end.
7. The powder taking device for the geological survey of the coal mine roadway according to claim 6, characterized in that two rotating sleeves (23) are symmetrically and threadedly connected on the threaded rod (24), a sliding rod is fixedly connected on each rotating sleeve (23), and the sliding rod is slidably connected with the base (1).
8. The coal mine roadway geological survey powder taking device according to claim 7, characterized in that the rotating sleeve (23) is rotatably connected with a connecting rod (25), one end of the connecting rod (25) far away from the rotating sleeve (23) is rotatably connected with a moving column (7), the base (1) is provided with a round hole for the moving column (7) to move left and right, and one end of the moving column (7) far away from the base (1) is rotatably connected with a pulley (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110351189.9A CN113281102A (en) | 2021-03-31 | 2021-03-31 | A get whitewashed device for coal mine tunnel geology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110351189.9A CN113281102A (en) | 2021-03-31 | 2021-03-31 | A get whitewashed device for coal mine tunnel geology |
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| Publication Number | Publication Date |
|---|---|
| CN113281102A true CN113281102A (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110351189.9A Pending CN113281102A (en) | 2021-03-31 | 2021-03-31 | A get whitewashed device for coal mine tunnel geology |
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| Country | Link |
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| CN (1) | CN113281102A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040647A1 (en) * | 2022-08-26 | 2024-02-29 | 德州学院 | Geophysical exploration system for pollutants in refuse landfill, and method therefor |
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| CN103954475A (en) * | 2014-05-04 | 2014-07-30 | 青岛林川工程技术咨询有限公司 | Dust taking apparatus for concrete of solid structure |
| CN207423049U (en) * | 2017-07-13 | 2018-05-29 | 刘建斌 | A kind of measuring device for monitoring coal mine tunnel top board displacement |
| CN208140405U (en) * | 2018-05-24 | 2018-11-23 | 信阳学院 | A kind of mining geology rock sample sampler |
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| WO2024040647A1 (en) * | 2022-08-26 | 2024-02-29 | 德州学院 | Geophysical exploration system for pollutants in refuse landfill, and method therefor |
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