CN110568478A - Metal mine underground micro-seismic detection system - Google Patents
Metal mine underground micro-seismic detection system Download PDFInfo
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- CN110568478A CN110568478A CN201910911114.4A CN201910911114A CN110568478A CN 110568478 A CN110568478 A CN 110568478A CN 201910911114 A CN201910911114 A CN 201910911114A CN 110568478 A CN110568478 A CN 110568478A
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- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 239000002184 metal Substances 0.000 title claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 166
- 239000002689 soil Substances 0.000 claims abstract description 6
- 230000005484 gravity Effects 0.000 claims description 55
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 abstract description 33
- 230000008859 change Effects 0.000 abstract description 14
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000006096 absorbing agent Substances 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005065 mining Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
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- G01V1/01—
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/288—Event detection in seismic signals, e.g. microseismics
Abstract
The invention belongs to the technical field of mine earthquake monitoring, and particularly relates to an underground micro-earthquake detection system for a metal mine, wherein a micro-earthquake detection device is arranged in an underground soil pit; the microseismic detection device comprises a water tank; both sides of the water tank are fixedly connected with the pit wall in a ball hinge rod mode, and the water tank can freely rotate; water is filled in the water tank, water pressure sensors are arranged on two sides of the inner wall of the water tank, and the bottoms of the water pressure sensors are in contact with the water surface; when the mine micro-shock absorber works, when a mine generates micro-shock, shock waves are transmitted to the water tank along the spherical hinge rod to drive the water tank to shake, and the shaking of the water tank drives the stable water surface in the water tank to generate fluctuation; the water pressure sensors arranged on two sides inside the water tank can collect the water wave change information.
Description
Technical Field
The invention belongs to the technical field of mine earthquake monitoring, and particularly relates to an underground micro-earthquake detection system for a metal mine.
Background
At present, 95% of coal production in China is underground operation, particularly, in more than ten years, the increasing of the mining depth leads to more complex mining conditions, the threat of natural disasters is more serious, and major dynamic disasters (gas coal dust explosion, water and gas outburst, rock burst and the like) of coal mines occur frequently; the occurrence conditions of coal beds in China are complex, the average mining depth of key coal mines in China is over 400m, the mining conditions and the natural environment are obviously changed, and the coal beds have the new characteristics of high ground stress, high gas, high heterogeneity, low permeability and low strength; the threat of major dynamic disasters of coal mines severely limits the production capacity of mines, causes great economic loss and also influences the guarantee effect of coal production on the rapid development of national economy.
In the use process of the conventional mine micro-seismic detection system, a sensor acquires signals inaccurately, and meanwhile, the problem that micro-seismic waves are not acquired timely in the signal acquisition process exists.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a metal mine underground micro-seismic detection system, which detects micro-seismic by detecting the influence of mine micro-seismic on water surface fluctuation and improves the detection sensitivity.
The technical scheme adopted by the invention for solving the technical problems is as follows: a metal mine underground micro-seismic detection system is characterized in that a micro-seismic detection device is placed in an underground soil pit; the microseismic detection device comprises a water tank; the two sides of the water tank are connected with the connecting rod in a ball joint mode, and the connecting rod is tightly propped against the pit wall; water is filled in the water tank, water pressure sensors are arranged on two sides of the top wall of the water tank, and the bottoms of the water pressure sensors are in contact with the water surface; the box body is placed in a mine soil pit through the connecting rods, the box body is tightly propped against the box body through the four connecting rods arranged on the end face of the box body and the pit wall in the process of placing the soil pit, when slight shock occurs in a mine, the shock waves are transmitted to the pit wall, the shock waves are transmitted to the outer surface of the water tank through the connecting rods tightly propped against the pit wall, the water tank is made of an iron material, the shock waves can be transmitted into water in the water tank through the water tank body, the shock waves drive fluctuation of the water surface, the water pressure sensor arranged on the water surface can collect information of fluctuation of the water surface, and the collected information of fluctuation of the water surface is transmitted to the controller to determine the position where the slight shock occurs through the positioning system and forecast in time to reduce loss caused by.
Preferably, a middle rod is arranged below the water tank and made of elastic materials, the middle rod is positioned below the water tank, and the bottom of the middle rod is fixedly connected with the ground; arc rods are arranged on two sides of the middle rod, and the side wall of the middle rod is connected with the upper end and the lower end of each arc rod through springs; the bottom of the arc rod is contacted with the ground, and the middle part of the arc rod is hinged with the pit wall; the arc rod is positioned below the water tank but is not in contact with the water tank; when slight shock occurs in a mine, the water surface in the water tank increases the water wave amplitude due to the shock, meanwhile, the shock wave is transmitted to the middle rod through the ground, the middle rod is connected with the arc rods on the two sides through springs, the shake of the middle rod can drive the arc rods on the two sides to move, the distance between the arc rods and the water tank above the arc rods is small, and the moving arc rods knock the bottom of the water tank to enable water in the water tank to fluctuate; the timeliness and the accuracy of data collection are improved, the water pressure sensors on the two sides of the water tank can collect the information of the fluctuation change of the water surface and transmit the information to the controller, and the control system determines the seismic source through the analysis of the data and carries out prediction in time.
Preferably, a gravity ball is hung on the inner side of the water tank through a rope, and the gravity ball is in contact with the water surface; a gravity sensor is arranged above the gravity ball through a rope; when the mine has slight shock, the fluctuation range of the water surface is increased, the gravity ball floating on the water surface can also shake, the gravity sensor arranged above the gravity ball can collect the gravity center change data of the gravity ball, and the data of the water pressure sensor and the gravity sensor are combined to enable the detection result of the detection system to be more accurate.
Preferably, be provided with a ball in the gravity ball, the ball can freely roll in the gravity ball, produces the microseism when the mine, and the undulant range of surface of water increases, and the gravity ball that floats on the surface of water also can rock about, and the ball of placing in the gravity ball inside also can move along with the motion of gravity ball, and the side-to-side motion of ball can lead to the focus of gravity ball to change, and gravity inductor can collect gravity ball focus change data and pass to the controller.
Preferably, the top of the middle rod is provided with an air bag, the surface of the air bag is provided with at least two air release holes, the bottom of the air bag is provided with an air release needle, and the air release needle is fixed at the top of the middle rod; the deflation needle is in contact with the deflation hole after being stressed, so that the gas in the air bag can be released; when the mine has slight shock, the shock wave is transmitted to the middle rod through the ground; the up-and-down motion of well pole drives the setting and puts the contact of gas pocket in well pole top gassing needle and the gasbag, and gassing needle and gas release contact release gas impact ball hinge bar on the lamina in the gasbag, and the lamina shake of being impacted drives the fluctuation range increase of water in the water tank for water pressure sensor's data detection is more accurate.
Preferably, the middle part of the connecting rod is fixedly connected with a blade plate, and different guide grooves are formed in the surface of the blade plate; the vibration of the middle rod can enhance the fluctuation amplitude of water in the water tank, meanwhile, the vibration of the middle rod can enable the air bag to release airflow to impact the blade plate, and the flow guide grooves arranged on the surface of the blade plate can accelerate the vibration of the blade plate to increase the fluctuation amplitude of the water surface; the guiding gutter of paddle also can change the impact direction of air current for the air current strikes the arc board, thereby the shake range of increase arc board increases the dynamics that the arc board strikes the water tank and then the fluctuation range of the surface of water makes the data that water pressure sensor collected more accurate.
The invention has the technical effects and advantages that:
1. According to the metal mine underground micro-seismic detection system, micro-seismic waves are transmitted to the water tank through the water tank, the connecting rod and the water pressure sensor, so that the water surface fluctuates, the water pressure sensor arranged on the water surface can record the numerical value of fluctuation change of the water surface and transmit the numerical value to the controller to determine the micro-seismic position and forecast the micro-seismic position in time to reduce loss.
2. according to the metal mine underground micro-seismic detection system, micro-vibration is transmitted to a water tank in a transverse wave mode and a longitudinal wave mode through the cooperation of the middle rod, the arc rod, the blade plate and the air bag; the transverse wave and the longitudinal wave vibrate the water surface to intensify the fluctuation amplitude of the water surface, and the water pressure sensor can timely receive accurate data and transmit the data to the controller for analysis and determination of the seismic source and the level.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a view taken along line A of FIG. 2 at 17;
FIG. 4 is an enlarged view of B in FIG. 2;
In the figure: the microseismic detection device 1, a water tank 11, a water pressure sensor 111, a gravity ball 112, a gravity sensor 113, a ball 114, a middle rod 12, an arc rod 13, an air bag 14, an air vent 141, an air release needle 15, a connecting rod 16, a blade 17 and a diversion trench 171.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-4, the metal mine underground micro-seismic detection system comprises a micro-seismic detection device 1, wherein the micro-seismic detection device 1 is placed in an underground soil pit, and the micro-seismic detection device 1 comprises a water tank 11; both sides of the water tank 11 are fixedly connected with the pit wall in a ball hinge rod 16 mode, and the water tank 11 can rotate freely; water is filled in the water tank 11, water pressure sensors 111 are arranged on two sides of the top wall of the water tank 11, and the bottoms of the water pressure sensors 111 are in contact with the water surface; the box body 1 is placed in a mine pit through the connecting rods 16, and the four connecting rods 16 arranged on the end surface of the box body 1 are tightly propped against the pit wall to fix the box body 1 in the process that the box body 1 is placed in the pit; when a mine generates micro-shock, the shock wave is transmitted to the pit wall, the shock wave is transmitted to the outer surface of the water tank 11 through the connecting rod 16 tightly abutted against the pit wall, the water tank 11 is made of an iron material, the shock wave can be transmitted to water in the water tank 11 through the water tank 11, the shock wave drives fluctuation of the water surface, the water pressure sensor 111 arranged on the water surface can collect information of fluctuation of the water surface, and transmits the collected information of the fluctuation of the water surface to the controller to determine the position of the micro-shock through the positioning system and forecast in time to reduce loss caused by the micro-shock.
As an embodiment of the invention, a middle rod 12 is arranged below the water tank, the middle rod 12 is made of an elastic material, the middle rod 12 is positioned below the water tank 11, the bottom of the middle rod 12 is fixedly connected with the ground, arc rods 13 are arranged on two sides of the middle rod 12, and the side wall of the middle rod 12 is connected with the upper end and the lower end of each arc rod 13 through springs; the bottom of the arc rod 13 is contacted with the ground, and the middle part of the arc rod 13 is hinged with the pit wall; the arc rod 13 is positioned below the water tank 11 but is not in contact with the water tank 11; when a slight shock occurs in a mine, the water wave amplitude of the water surface in the water tank 1 is increased due to the shock, meanwhile, the shock wave is transmitted to the middle rod 12 through the ground, the middle rod 12 is connected with the arc rods 13 on the two sides through springs, the shake of the middle rod can drive the arc rods 13 on the two sides to move, the distance between the arc rods 13 and the water tank 11 above is small, and the moving arc rods 13 knock the bottom of the water tank 11 to enable the water in the water tank 11 to fluctuate; the timeliness and the accuracy of data collection are improved, the water pressure sensors 111 on the two sides of the water tank 11 can collect the information of water surface fluctuation change and transmit the information to the controller, and the control system determines the seismic source through data analysis and carries out prediction in time.
as an embodiment of the present invention, a gravity ball 112 is hung on the inner side of the water tank 11 by a rope, and the gravity ball 112 is in contact with the water surface; a gravity sensor 113 is arranged above the gravity ball 112; the gravity sensor 113 is fixed on the top wall of the water tank 11; when the mine has slight shock, the amplitude of the water surface fluctuation is increased, the gravity ball 112 floating on the water surface can shake, the gravity sensor 113 arranged above the gravity ball 112 can collect the data of the gravity center change of the gravity ball 112, and the data of the water pressure sensor 111 and the gravity sensor 113 are combined to enable the detection result of the detection system to be more accurate.
In one embodiment of the present invention, a ball 114 is disposed in the gravity ball 112; the ball 114 can freely roll in the gravity ball 112, when the mine generates a slight shock, the amplitude of the water surface fluctuation is increased, the gravity ball 112 floating on the water surface can shake left and right, the ball 115 placed in the gravity ball 112 can move along with the movement of the gravity ball 112, the gravity sensor 113 transmits the data of the gravity center change of the gravity ball 112 to the controller, and the gravity sensor 114 can change the gravity center of the gravity ball 112 due to the left and right movement of the ball 114.
As an embodiment of the present invention, an air bag 14 is disposed on the top of the box 11, at least two air release holes 141 are disposed on the surface of the air bag 14, an air release needle 15 is disposed at the bottom of the air bag 14, and the air release needle 15 is fixed on the top of the middle rod 12; the deflation needle 15 is in contact with the deflation hole 141 after being stressed, so that the gas in the air bag 14 can be released; when the mine has slight shock, the shock wave is transmitted to the middle rod 12 through the ground; the up-and-down movement of the middle rod 12 drives the air release needle 15 arranged at the top of the middle rod 12 to contact with the air release hole 141 in the air bag 14, the air release needle 15 contacts with the air release hole 141 to release the air in the air bag 14 to impact the leaf plate 17 on the ball hinge 16, and the vibration of the impacted leaf plate 17 drives the fluctuation range of the water surface in the water tank 11 to increase, so that the data detection of the water pressure sensor 111 is more accurate.
As an embodiment of the present invention, the middle of the connecting rod 16 is fixedly connected with a vane 17, and different diversion trenches 171 are arranged on the surface of the vane 17; the vibration causes the shake of the middle rod to enhance the fluctuation amplitude of water in the water tank, and simultaneously, the shake of the middle rod can enable the air bag to release airflow to impact the diversion groove 171 arranged on the surface of the blade 17, so that the shake of the blade 17 is accelerated, and the fluctuation amplitude of the water surface is increased; the guiding gutter 171 of paddle 17 also can change the impact direction of air current for the air current strikes arc board 13, thereby increases arc board 13 shake amplitude and increase the dynamics that arc board 13 strikeed water tank 11 and then increase the undulant range of the surface of water and make the data that water pressure sensor 11 collected more accurate.
The box body 1 is placed in a mine pit through the connecting rods 16, and the four connecting rods 16 arranged on the end surface of the box body 1 are tightly propped against the pit wall to fix the box body 1 in the process that the box body 1 is placed in the pit; when a mine generates slight shock, the shock wave is transmitted to the pit wall, the shock wave is transmitted to the outer surface of the water tank 11 through the connecting rod 16 tightly abutted against the pit wall, the water tank 11 is made of an iron material, the shock wave can be transmitted to water in the water tank 11 through the tank body of the water tank 11, the shock wave drives the fluctuation of the water surface, and the water pressure sensor 111 arranged on the water surface can collect the information of the fluctuation change of the water surface; when a slight shock occurs in a mine, the water wave amplitude of the water surface in the water tank 1 is increased due to the shock, meanwhile, the shock wave is transmitted to the middle rod 12 through the ground, the middle rod 12 is connected with the arc rods 13 on the two sides through springs, the shake of the middle rod can drive the arc rods 13 on the two sides to move, the distance between the arc rods 13 and the water tank 11 above is small, and the moving arc rods 13 knock the bottom of the water tank 11 to enable the water in the water tank 11 to fluctuate; when the mine has slight shock, the amplitude of the water surface fluctuation is increased, the gravity ball 112 floating on the water surface can shake, the gravity sensor 113 arranged above the gravity ball 112 can collect the data of the gravity center change of the gravity ball 112, and the data of the water pressure sensor 111 and the gravity sensor 113 are combined to enable the detection result of the detection system to be more accurate.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. the utility model provides a metal mine microseismic detection system in pit which characterized in that: the device comprises a micro-seismic detection device (1), wherein the micro-seismic detection device (1) is placed in an underground soil pit; the microseismic detection device (1) comprises a water tank (11); both sides of the water tank (11) are connected with the connecting rod (16) in a ball joint mode, and the connecting rod (16) is tightly propped against the pit wall; water is filled in the water tank (11), water pressure sensors (111) are arranged on two sides of the top wall of the water tank (11), the water pressure sensors (111) can collect information generated by water wave changes, and the bottoms of the water pressure sensors (111) are in contact with the water surface.
2. the metal mine downhole microseismic detection system of claim 1 wherein: a middle rod (12) is arranged at the bottom of the water tank (11); the middle rod (12) is made of elastic material; the middle rod (12) is positioned below the water tank (11); the bottom of the middle rod (12) is fixedly connected with the ground; arc rods (13) are arranged on two sides of the middle rod (12); the side wall of the middle rod (12) is connected with the upper end and the lower end of the arc rod (13) through springs, the bottom of the arc rod (13) is in contact with the ground, and the middle of the arc rod (13) is hinged with the pit wall; the arc rod (13) is positioned below the water tank (11) but is not in contact with the water tank (11).
3. The metal mine downhole microseismic detection system of claim 2 wherein: a gravity ball (112) is hung on the inner wall of the water tank (11) through a rope, and the gravity ball (112) is in contact with the water surface; and a gravity sensor (113) is arranged above the gravity ball (112), and the gravity sensor (113) is fixed on the top wall of the water tank (1).
4. The metal mine downhole microseismic detection system of claim 3 wherein: a ball bearing (114) is arranged in the gravity ball (112), and the ball bearing (114) can roll freely in the gravity ball (112).
5. The metal mine downhole microseismic detection system of claim 2 wherein: the top of the middle rod (12) is provided with an air bag (14), the surface of the air bag (14) is provided with at least two air release holes (141), the bottom of the air bag (14) is provided with an air release needle (15), and the air release needle (15) is fixed to the top of the middle rod (12); the air release needles (15) are in contact with the air release holes (141) after being stressed to release air in the air bag (14).
6. The metal mine downhole microseismic detection system of claim 1 wherein: the middle part of the connecting rod (16) is fixedly connected with a blade plate (17), and different guide grooves (171) are formed in the surface of the blade plate (17).
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| CN201910911114.4A CN110568478B (en) | 2019-09-25 | 2019-09-25 | Metal mine underground micro-seismic detection system |
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| CN201910911114.4A CN110568478B (en) | 2019-09-25 | 2019-09-25 | Metal mine underground micro-seismic detection system |
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| CN110568478B CN110568478B (en) | 2022-02-08 |
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Citations (7)
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|---|---|---|---|---|
| WO2012141618A2 (en) * | 2011-04-15 | 2012-10-18 | Solodilov Leonid Nikolaevich | Method for predicting earthquakes |
| CN204650721U (en) * | 2015-06-02 | 2015-09-16 | 杜泽峰 | A kind of earthquake warning device |
| CN105279902A (en) * | 2015-10-09 | 2016-01-27 | 郭小金 | Solar earthquake water wave alarm device |
| CN105527647A (en) * | 2014-09-28 | 2016-04-27 | 徐家成 | Earthquake monitoring method and earthquake monitoring device |
| WO2018139980A1 (en) * | 2017-01-27 | 2018-08-02 | Kurukamo Deprem Si̇stemleri̇ Araştirma Geli̇şti̇rme Bi̇li̇şi̇m Mekatroni̇k Otomasyon Basin Yayin Turi̇zm Gida İnşaat İç Ve Diş Ti̇caret San Ve Ti̇c A.Ş. | Earthquake management with combined sensor system |
| CN109686054A (en) * | 2019-01-17 | 2019-04-26 | 徐州工业职业技术学院 | A kind of self-control Housthold earthquake siren |
| CN208921875U (en) * | 2018-10-31 | 2019-05-31 | 广州万安建设监理有限公司 | Port engineering anti-seismic detection warning device |
-
2019
- 2019-09-25 CN CN201910911114.4A patent/CN110568478B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012141618A2 (en) * | 2011-04-15 | 2012-10-18 | Solodilov Leonid Nikolaevich | Method for predicting earthquakes |
| CN105527647A (en) * | 2014-09-28 | 2016-04-27 | 徐家成 | Earthquake monitoring method and earthquake monitoring device |
| CN204650721U (en) * | 2015-06-02 | 2015-09-16 | 杜泽峰 | A kind of earthquake warning device |
| CN105279902A (en) * | 2015-10-09 | 2016-01-27 | 郭小金 | Solar earthquake water wave alarm device |
| WO2018139980A1 (en) * | 2017-01-27 | 2018-08-02 | Kurukamo Deprem Si̇stemleri̇ Araştirma Geli̇şti̇rme Bi̇li̇şi̇m Mekatroni̇k Otomasyon Basin Yayin Turi̇zm Gida İnşaat İç Ve Diş Ti̇caret San Ve Ti̇c A.Ş. | Earthquake management with combined sensor system |
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