CN116379951A - Mine underground support deformation monitoring device and method - Google Patents
Mine underground support deformation monitoring device and method Download PDFInfo
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- CN116379951A CN116379951A CN202310257462.0A CN202310257462A CN116379951A CN 116379951 A CN116379951 A CN 116379951A CN 202310257462 A CN202310257462 A CN 202310257462A CN 116379951 A CN116379951 A CN 116379951A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 70
- 230000007246 mechanism Effects 0.000 claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000010276 construction Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000013507 mapping Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 238000009659 non-destructive testing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 239000011435 rock Substances 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Abstract
The utility model relates to a mine supports the field of monitoring, discloses a mine underground support deformation monitoring device and method, it includes two supports and multiunit detection mechanism, two the support is all connected in the mine tunnel, two the support sets up along the length direction interval in mine tunnel, multiunit detection mechanism sets up two between the support, every group detection mechanism all includes first tension sensor, indulges stay cord and a plurality of tensioning piece, first tension sensor fixed connection is in one of them on the support, the one end of indulging the stay cord with first tension sensor is connected, the other end of indulging the stay cord with keep away from first tension sensor support fixed connection, a plurality of tensioning piece equal fixed connection is on the strut, a plurality of tensioning piece all with indulge the stay cord and be connected. The method has the effects of monitoring deformation conditions in the mine in real time and improving the monitoring timeliness of the deformation conditions in the mine tunnel.
Description
Technical Field
The application relates to the field of mine support monitoring, in particular to a mine underground support deformation monitoring device and method.
Background
Mines are a generic term for roadways, chambers, equipment, floor structures and structures that form underground mine production systems. In order to ensure the safety of underground construction of mining personnel, a support frame is usually arranged in a mine tunnel so as to prevent the mine from collapsing.
In the process of carrying out long-term support on a mine by the support frame, the support frame can be subjected to the pressure of a rock layer above the mine, so that the support frame is easy to deform, and in order to monitor the deformation of the support frame in the mine, a monitoring device is usually arranged in the mine to monitor the support deformation of the mine.
At present, the Chinese patent with the bulletin number of CN205448989U discloses an underground roadway deformation monitoring device, which comprises a sliding rail arranged on the side wall of a roadway and a mounting platform, wherein one end of the mounting platform is provided with a roller matched with the sliding rail, the inside of the mounting platform, which is close to one end of the roller, is provided with a motor, the outside of the mounting platform is provided with a vertical support, a wireless communication device and a microprocessor connected with the wireless communication device, the other end of the vertical support is connected with a transverse support, and the underground roadway deformation monitoring device also comprises a laser range finder, an inclination angle sensor fixed with the laser range finder and a correction processing unit.
Aiming at the related technology, the inventor finds that when the deformation of the mine tunnel is monitored, the monitoring device needs to be pushed to move continuously to monitor the deformation of the mine tunnel at regular intervals, the mine tunnel cannot be monitored in real time, and the defect that the deformation of the mine tunnel is not monitored timely easily exists.
Disclosure of Invention
In order to relieve the problem that a monitoring device cannot monitor a mine tunnel in real time and is easy to monitor deformation of the mine tunnel in time, the application provides a mine underground support deformation monitoring device and a method.
In a first aspect, the application provides a mine underground support deformation monitoring device, adopts following technical scheme:
the utility model provides a mine underground support deformation monitoring device, includes two supports and multiunit detection mechanism, two the support is all connected in the mine tunnel, two the support sets up along the length direction interval in mine tunnel, multiunit detection mechanism sets up two between the support, every group detection mechanism all includes first tension sensor, indulges stay cord and a plurality of tensioning piece, first tension sensor fixed connection is in one of them on the support, first tension sensor is connected with outside supervisory equipment electricity, the one end of indulging the stay cord with first tension sensor is connected, the other end of indulging the stay cord with keep away from first tension sensor support fixed connection, a plurality of tensioning piece all fixed connection is on the strut, a plurality of tensioning piece all with indulge the stay cord is connected, a plurality of tensioning piece is followed the length direction interval setting of indulging the stay cord that self is connected.
By adopting the technical scheme, a plurality of longitudinal pull ropes are arranged between two brackets, and a plurality of tensioning pieces are arranged on each longitudinal pull rope, so that the tensioning pieces are uniformly distributed on the plurality of support frames, when the support frames are deformed by the pressure of a rock layer, the tensioning pieces are driven to move, the tension degree of the longitudinal pull ropes connected with the tensioning pieces is changed, and the longitudinal pull ropes are connected with a first tension sensor which transmits the tension change to external monitoring equipment, so that the deformation of the mine support frames can be monitored; the plurality of tensioning pieces are uniformly distributed on the support frame, so that the real-time monitoring of the whole support frame can be realized, and the timeliness of monitoring the deformation condition in the mine roadway is improved.
Preferably, each group of the detection mechanism further comprises a first tension spring, one end of the first tension spring is fixedly connected with the longitudinal pull rope, and the other end of the first tension spring is connected with the first tension sensor.
Through adopting above-mentioned technical scheme, set up first extension spring between indulging stay cord and first tension sensor, utilize the setting of first extension spring to improve the convenience of indulging stay cord rate of tension regulation, be convenient for first tension sensor simultaneously monitor the rate of tension change of indulging the stay cord.
Preferably, a plurality of groups of monitoring positioning mechanisms are arranged between the two supports, the plurality of groups of monitoring positioning mechanisms are arranged in one-to-one correspondence with the plurality of rows of tensioning pieces, each group of monitoring positioning mechanisms comprises a second tension sensor and a transverse pull rope, the second tension sensor is fixedly connected to one side wall of the mine roadway, the second tension sensor is electrically connected with external monitoring equipment, one end of the transverse pull rope is fixedly connected with the inner wall of the mine roadway, and the other end of the transverse pull rope sequentially penetrates through the plurality of tensioning pieces in the same row and then is connected with the second tension sensor.
Through adopting above-mentioned technical scheme, wear to establish in proper order and violently stay cord between a plurality of tensioning pieces that lie in same row, because the one end of violently stay cord is connected on second tension sensor, when the support takes place to warp and drive the tensioning piece and remove, it changes to drive self connected vertical stay cord and violently stay cord simultaneously to make the pulling force that detects of first tension sensor and second tension sensor change, through looking over the crossing point position of vertical stay cord and violently stay cord that first tension sensor and second tension sensor that the pulling force changed are connected can monitor the support and take place the position of warping, realize the fixed point monitoring to the support position of warping.
Preferably, each tensioning piece comprises a tensioning rod, two connecting pipes and two groups of adjusting components, the tensioning pieces are fixedly connected to the support frame, the two connecting pipes are all slidably connected to the tensioning rod, the longitudinal pull rope is connected to one connecting pipe, the transverse pull rope is connected to the other connecting pipe, the two groups of adjusting components are all connected to the tensioning rod, the two groups of adjusting components are in one-to-one correspondence with the two connecting pipes, and the adjusting components are used for driving the corresponding connecting pipes to move.
Through adopting above-mentioned technical scheme, slide two extension pipes on the tensioning lever, wear to establish respectively on two extension pipes with indulging stay cord and horizontal stay cord, when installing monitoring devices, utilize two sets of adjusting part to adjust the position of two extension pipes respectively, can adjust respectively the rate of tension of indulging stay cord and horizontal stay cord, improve the convenience of adjusting to indulging stay cord and horizontal stay cord rate of tension when installing monitoring devices.
Preferably, each group of the monitoring and positioning mechanisms further comprises a second tension spring, one end of the second tension spring is fixedly connected with the transverse pull rope, and the other end of the second tension spring is connected with the second tension sensor.
Through adopting above-mentioned technical scheme, connect the horizontal stay cord with the second extension spring on the second tension sensor again after being connected, realize the change detection to the second tension sensor elasticity through the change of second extension spring elasticity.
Preferably, a plurality of groups of bottom drum monitoring mechanisms are arranged between the two supports, the plurality of groups of bottom drum monitoring mechanisms are arranged in one-to-one correspondence with the plurality of second tension sensors, each group of bottom drum monitoring mechanisms comprises a cover plate, a measuring rope and a butt block, the cover plates are connected between two side walls of a mine roadway, each butt block is connected to the bottom surface of the mine roadway, one end of the measuring rope is connected to the inner wall of the mine roadway, and the other end of the measuring rope sequentially passes through the plurality of butt blocks and then is fixedly connected with the second tension spring.
By adopting the technical scheme, the plurality of abutting blocks are arranged on the bottom surface of the mine tunnel, and as the plurality of abutting blocks in the same row are connected to the second tension springs corresponding to the abutting blocks through one measuring rope, when the bottom surface of the mine tunnel bulges, the abutting blocks pushing the bulge position move upwards, so that the tension of the measuring rope connected with the abutting blocks changes, the tension of the second tension sensor connected with the measuring rope changes, and a monitoring person can determine the bulge position of the mine floor according to the position of the second tension sensor with the changed tension; when the mine tunnel bottom plate bulges, only the second tension sensor detects tension change; when the support frame in the mine is deformed, the first tension sensor and the second tension sensor can detect tension changes at the same time, and monitoring staff can obtain whether the mine tunnel bottom plate is bulged or the support frame in the mine is deformed according to different tension change conditions, so that synchronous monitoring of the deformation of the support frame in the mine and the bulge of the mine tunnel bottom plate is realized.
Preferably, keep away from the mine lateral wall of second tension sensor is provided with multiunit coupling assembling, multiunit coupling assembling and many measurement ropes one-to-one setting, every group coupling assembling all includes supporting shoe, connecting block and adjusting screw, supporting shoe fixed connection is on the mine tunnel lateral wall, connecting block sliding connection is in on the supporting shoe, the connecting block slides along the width direction in mine tunnel, adjusting screw threaded connection is in on the supporting shoe, adjusting screw's one end with connecting block fixed connection.
Through adopting above-mentioned technical scheme, with sliding block sliding connection on the supporting shoe, can drive the sliding block through rotating adjusting screw and remove, can adjust the tensioning dynamics of measuring rope then, improve the convenience of measuring rope tensioning degree regulation when the installation.
Preferably, an auxiliary supporting mechanism is arranged between the two brackets, the auxiliary supporting mechanism comprises an auxiliary supporting frame, a sliding ring and a supporting screw rod, the auxiliary supporting frame is connected between the two brackets in a sliding mode, the sliding ring is connected to the auxiliary supporting frame in a sliding mode, the supporting screw rod is connected to the sliding ring in a threaded mode, and the supporting screw rod is used for supporting the tensioning piece at the deformation position of the supporting frame.
Through adopting above-mentioned technical scheme, after monitoring that the strut of a certain position takes place to warp, assist strut and slip ring through the slip to slide supporting screw to the strut and take place to warp the position, then utilize supporting screw to support the tensioning piece of strut deformation position, can realize supporting temporarily the strut deformation position, guarantee the security in the mine tunnel.
In a second aspect, the present application provides a method for monitoring deformation of underground mine support, which adopts the following technical scheme:
the mine underground support deformation monitoring method comprises the following steps of:
s1: measuring the interior of a mine by using a mapping device, and analyzing and planning a construction drawing;
s2: a plurality of tensioning rods are arranged on a mine roadway support frame according to a construction drawing, the tensioning rods in the same row are connected with a first tension sensor through longitudinal pull ropes, the tensioning rods in the same row are connected with a second tension sensor through transverse pull ropes, and the first tension sensor and the second tension sensor are electrically connected with monitoring equipment in the outside;
s3: a plurality of abutting blocks are arranged on the ground of the mine tunnel, and the abutting blocks positioned in the same row are connected with a second tension sensor through a measuring rope;
s4: monitoring tension changes of the first tension sensors and the second tension sensors in real time through external monitoring equipment;
s5: and temporarily supporting the position where the support frame is deformed according to the monitoring condition.
In summary, the present application at least includes the following beneficial technical effects:
1. the longitudinal pull ropes are arranged between the two supports, and each longitudinal pull rope is provided with a plurality of tensioning pieces, when the support frames are deformed under the pressure of the rock layer, the tensioning pieces are driven to move so that the tension degree of the longitudinal pull ropes connected with the tensioning pieces is changed, and as the longitudinal pull ropes are connected with the first pull force sensor, the first pull force sensor transmits the tension change to the monitoring equipment, and the deformation of the mine support frames can be monitored; the plurality of tensioning pieces are uniformly distributed on the support frame, so that the whole support frame can be monitored in real time, and the timeliness of monitoring the deformation condition in the mine roadway is improved;
2. through setting up horizontal stay cord between a plurality of tensioning pieces that are located same row to with horizontal stay cord connection on second tension sensor, when the tensioning piece takes place to remove along with the deformation of strut, will drive the vertical stay cord and horizontal stay cord that its connection simultaneously remove, thereby make the pulling force that first tension sensor and second tension sensor detected simultaneously change, can monitor the position that the strut took place to warp through looking over the crossing point position of vertical stay cord and horizontal stay cord that first tension sensor and second tension sensor that the pulling force changed are connected, realize the fixed point monitoring to the strut position of warp.
3. Through connecting the measuring rope with its second tension sensor that corresponds, when the mine tunnel bottom surface takes place to swell, will promote the measuring rope rate of tension of relevant position and change, make the pulling force that corresponding second tension sensor detected change then, monitoring personnel can obtain according to the pulling force change condition of difference and take place the swell to be mine tunnel bottom plate, or the support in the mine takes place to warp to the realization is to the synchronous monitoring of in-mine support deformation and mine tunnel bottom plate swell.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is a schematic structural view of a detection mechanism according to an embodiment of the present application;
FIG. 3 is a schematic view of a first tension spring according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a monitoring and positioning mechanism according to an embodiment of the present application;
FIG. 5 is a schematic view of the structure of a tensioning member in an embodiment of the present application;
fig. 6 is a schematic structural diagram of a bottom drum monitoring mechanism in an embodiment of the present application.
FIG. 7 is a schematic structural view of a connection assembly according to an embodiment of the present application;
FIG. 8 is a schematic structural view of an auxiliary strut mechanism in an embodiment of the present application;
fig. 9 is a schematic view of the structure of the supporting screw in the embodiment of the present application.
Reference numerals: 100. a bracket; 200. a detection mechanism; 210. a first tension sensor; 220. a longitudinal pull rope; 230. a tensioning member; 231. a tension rod; 232. a socket pipe; 233. an adjustment assembly; 234. a screw rod; 235. a slide block; 240. a first tension spring; 300. monitoring a positioning mechanism; 310. a fixed block; 320. a transverse pull rope; 330. a second tension sensor; 340. a second tension spring; 400. a bottom drum monitoring mechanism; 410. a cover plate; 420. an abutment block; 430. measuring ropes; 440. a spring; 450. a guide wheel; 460. a connection assembly; 461. a support block; 462. a connecting block; 463. adjusting a screw; 500. an auxiliary supporting mechanism; 510. an auxiliary supporting frame; 520. a slip ring; 530. abutting the bolt; 540. a support screw; 550. a slide rail; 600. and a support frame.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-9.
The embodiment of the application discloses a mine underground support deformation monitoring device.
Referring to fig. 1 and 2, a mine underground support deformation monitoring device includes two supports 100, the two supports 100 are arranged at intervals along the length of a mine tunnel, a plurality of groups of detection mechanisms 200 are installed between the two supports 100, and the plurality of groups of detection mechanisms 200 are arranged at intervals along the circumferential direction of the mine tunnel. Each group of detection mechanism 200 comprises a first tension sensor 210 fixedly connected to one of the brackets 100, the first tension sensor 210 is electrically connected with external monitoring equipment, a longitudinal pull rope 220 is installed on the first tension sensor 210, one end, far away from the first tension sensor 210, of the longitudinal pull rope 220 is fixedly connected to the other bracket 100, a plurality of tensioning pieces 230 are sleeved on the outer side of the longitudinal pull rope 220, the tensioning pieces 230 are arranged at intervals along the length direction of the longitudinal pull rope 220, each tensioning piece 230 is in sliding connection with the longitudinal pull rope 220, and each tensioning piece 230 is fixedly connected to the support frame 600. Through drawing and establishing many vertical stay cords 220 between two supports 100 to set up a plurality of tensioning members 230 on every vertical stay cord 220, because every tensioning member 230 all is connected with support 600, when the installation, the tensioning degree of vertical stay cord 220 has been adjusted, when support 600 in the mine receives rock layer pressure and takes place to warp, push down tensioning member 230 and drive tensioning member 230 simultaneously and move down, thereby push down vertical stay cord 220 and increase the tensioning degree of vertical stay cord 220, first tension sensor 210 transmits the pulling force change to supervisory equipment, can monitor the deformation that mine support 600 takes place, realize the real-time supervision to the inside deformation condition of mine, guarantee the timeliness to the deformation condition monitoring in the mine tunnel.
Referring to fig. 1, 2 and 3, a first tension spring 240 is installed between each longitudinal pull rope 220 and the corresponding first tension sensor 210, one end of the first tension spring 240 is fixedly connected with the longitudinal pull rope 220, and one end of the first tension spring 240, which is far away from the longitudinal pull rope 220, is fixedly connected with the first tension sensor 210. The arrangement of the first tension spring 240 is used to facilitate adjustment of the tension of the longitudinal pull cord 220 when the monitoring device is installed, and to facilitate monitoring of the received tension by the first tension sensor 210.
Referring to fig. 1, 2 and 4, in order to facilitate determination of deformation positions of the mine support 600, a plurality of sets of monitoring and positioning mechanisms 300 are installed between the two supports 100, and the plurality of sets of monitoring and positioning mechanisms 300 are disposed in one-to-one correspondence with the plurality of rows of tensioning members 230. Each group of monitoring and positioning mechanisms 300 comprises a fixed block 310, wherein the fixed block 310 is fixedly connected with a support frame 600, the fixed block 310 is positioned at a position close to the bottom of a mine roadway, a transverse pull rope 320 is fixedly connected to the fixed block 310, and one end, far away from the fixed block 310, of the transverse pull rope 320 sequentially passes through a plurality of tensioning pieces 230 positioned in the same row and then is fixedly connected with a second tension spring 340. The side wall of the mine tunnel opposite to the fixed block 310 is fixedly connected with a second tension sensor 330, the second tension sensor 330 is positioned close to the bottom of the mine tunnel, and one end of a second tension spring 340, which is far away from the transverse pull rope 320, is fixedly connected with the second tension sensor 330. When the support 600 in the mine is deformed, the tensioning piece 230 at the deformed position is pressed down, at this time, the tensioning piece 230 simultaneously presses down the longitudinal pull rope 220 and the transverse pull rope 320 which are connected with the tensioning piece, then the first tension sensor 210 and the second tension sensor 330 which are connected with the longitudinal pull rope 220 and the transverse pull rope 320 simultaneously detect tension changes and transmit the tension changes to external monitoring equipment, and the deformed position of the support 600 can be monitored by checking the intersection point position of the longitudinal pull rope 220 and the transverse pull rope 320 with the tension changes, so that fixed point monitoring on the deformed position of the support 600 is realized.
Referring to fig. 2, 4 and 5, each of the tension members 230 includes a tension rod 231, one end of the tension rod 231 is fixedly connected with a connection plate, the connection plate is perpendicular to the tension rod 231, a plurality of bolts are penetrated through the connection plate, and the connection plate is fixedly connected to the support frame 600 through the bolts. The tensioning rod 231 is slidably connected with two connecting pipes 232, the two connecting pipes 232 are slidably connected to the tensioning rod 231, the two connecting pipes 232 slide along the length direction of the tensioning rod 231, one connecting pipe 232 is used for penetrating the longitudinal pull rope 220, the other connecting pipe 232 is used for penetrating the transverse pull rope 320, and the longitudinal pull rope 220 and the transverse pull rope 320 are slidably connected in the connecting pipes 232 corresponding to the longitudinal pull rope and the transverse pull rope 320 respectively. Two groups of adjusting assemblies 233 are mounted on the tensioning rod 231, the two groups of adjusting assemblies 233 are arranged in one-to-one correspondence with the two connecting pipes 232, and the adjusting assemblies 233 are used for adjusting the positions of the corresponding connecting pipes 232.
Each group of adjusting assemblies 233 comprises a lead screw 234, the lead screws 234 are all rotationally connected to the tensioning rods 231, the axes of the lead screws 234 are parallel to the length direction of the tensioning rods 231, the lead screws 234 are all in threaded connection with sliding blocks 235, the sliding blocks 235 are slidably connected to the tensioning rods 231, and the sliding blocks 235 are fixedly connected with corresponding bearing pipes 232. When the monitoring device is installed, the connecting plate is fixed on the support frame 600 through bolts to realize the installation of the tensioning rod 231, and then after the longitudinal pull rope 220 and the transverse pull rope 320 respectively pass through the two connecting pipes 232, the two connecting pipes 232 can be driven to move through respectively rotating the two lead screws 234, so that the tensioning degree of the longitudinal pull rope 220 and the transverse pull rope 320 is conveniently adjusted, and the tensioning degree adjustment convenience of the longitudinal pull rope 220 and the transverse pull rope 320 is improved.
Referring to fig. 2, 4 and 6, in the use process of the tunnel in the mine, under the influence of factors such as the property of the surrounding rock of the bottom plate and the stress of the surrounding rock, the condition of the floor heave easily occurs in the mine tunnel, and in order to monitor the floor heave in the mine tunnel in advance, a plurality of groups of floor heave monitoring mechanisms 400 are arranged between two supports 100.
The multiple groups of the floor heave monitoring mechanisms 400 are arranged at intervals along the length direction of the mine tunnel, and the multiple groups of the floor heave monitoring mechanisms 400 are arranged in one-to-one correspondence with the multiple second tension sensors 330. Each group of foundation drum monitoring mechanism 400 comprises a cover plate 410, two ends of the cover plate 410 are respectively and fixedly connected to two side walls of a mine, a plurality of springs 440 are fixedly connected to the lower side of the cover plate 410, the springs 440 are arranged at intervals along the length direction of the cover plate 410, each spring 440 is vertically arranged, the lower end of each spring 440 is fixedly connected with an abutting block 420, each spring 440 pushes the abutting block 420 to abut against the bottom surface of a mine roadway, a measuring rope 430 is fixedly connected to the roadway side wall of the fixing block 310, and the free end of the measuring rope 430 sequentially penetrates through the plurality of abutting blocks 420 and is fixedly connected with a second tension spring 340 on a second tension sensor 330 corresponding to the free end of the measuring rope 430. By connecting the measuring rope 430 with the second tension spring 340, when the bottom surface of the mine is bulged, the abutting block 420 above the measuring rope 430 is pushed to move upwards, so that the tension degree of the measuring rope 430 is increased, at the moment, the measuring rope 430 pulls the second spring 440 connected with the measuring rope to change the tension detected by the second tension sensor 330, and the bulged position of the mine roadway is obtained through external monitoring equipment; when the mine tunnel floor bulges, only the second tension sensor 330 detects tension changes; when the support 600 in the mine is deformed, the first tension sensor 210 and the second tension sensor 330 can detect tension changes at the same time, and monitoring personnel can obtain whether the mine tunnel bottom plate is bulged or the support 600 in the mine is deformed according to different tension changes, so that synchronous monitoring of deformation of the support 600 in the mine and the bulge of the mine tunnel bottom plate is realized.
Referring to fig. 4 and 6, two guide wheels 450 are rotatably connected to the side wall of the mine tunnel of the second tension sensor 330, the rotation axes of the two guide wheels 450 are parallel to the length direction of the mine tunnel, and the measuring rope 430 is fixedly connected with the second tension spring 340 after bypassing the two guide wheels 450. The measurement rope 430 is guided by the guide wheel 450 to be parallel to the transverse pulling rope 320 and then is fixedly connected with the second tension spring 340, so that the transverse pulling rope 320 and the measurement rope 430 are in a parallel state at a position close to the second tension spring 340, and the tensioning effect of the second tension sensor 330 is guaranteed.
Referring to fig. 6 and 7, a plurality of groups of connection assemblies 460 are provided on the side wall of the mine tunnel far from the second tension sensor 330, the plurality of groups of connection assemblies 460 are provided along the circumferential side of the bracket 100 at intervals, and the plurality of groups of connection assemblies 460 are provided in one-to-one correspondence with the plurality of measurement ropes 430. Each group of connecting components 460 comprises a supporting block 461, the supporting blocks 461 are fixedly connected to the side walls of a mine roadway, connecting blocks 462 are slidably connected to the supporting blocks 461, the connecting blocks 462 move along the width direction of the mine roadway, adjusting screws 463 are arranged on the supporting blocks 461 in a penetrating mode, the adjusting screws 463 are in threaded connection to the supporting blocks 461, one ends, close to the connecting blocks 462, of the adjusting screws 463 are rotationally connected with the connecting blocks 462, the adjusting screws 463 are used for pushing the connecting blocks 462 to slide, and one ends of measuring ropes 430 are fixedly connected to the connecting blocks 462. When in use, a worker can drive the connecting block 462 to move by rotating the adjusting screw 463, and the connecting block 462 moves to drive the measuring rope 430 to move, so that the tension of the measuring rope 430 is adjusted, and the convenience of tension adjustment of the measuring rope 430 is improved.
Referring to fig. 2, 8 and 9, an auxiliary supporting mechanism 500 is installed between two brackets 100, the auxiliary supporting mechanism 500 comprises two sliding rails 550, the two sliding rails 550 are fixedly connected between the two brackets 100 in a sliding manner, the two sliding rails 550 are arranged along the length direction of a mine roadway, and the two sliding rails 550 are respectively positioned at two ends of the brackets 100. The two sliding rails 550 are slidably connected with an auxiliary supporting frame 510, the auxiliary supporting frame 510 is vertically arranged, the auxiliary supporting frame 510 is slidably connected with a sliding ring 520, the sliding ring 520 is sleeved outside the auxiliary supporting frame 510, the sliding ring 520 is provided with a supporting bolt 530 in a penetrating mode, the supporting bolt 530 is in threaded connection with the sliding ring 520, and the supporting bolt 530 is used for supporting the sliding ring 520 on the auxiliary supporting frame 510. The sliding ring 520 is provided with a supporting screw 540 in a penetrating way, the supporting screw 540 is connected to the sliding ring 520 in a threaded way, and the axis of the supporting screw 540 is perpendicular to the arc-shaped axis of the auxiliary supporting frame 510. After monitoring personnel monitor the deformation position of the support frame 600, the auxiliary support frame 510 is pushed to move to the deformation position of the support frame 600, then the position of the sliding ring 520 is adjusted, after the sliding ring 520 is locked by the abutting bolts 530, the supporting screw 540 is rotated, the supporting screw 540 is made to support the tensioning rod 231 at the deformation position of the support frame 600, temporary support of the deformation position of the support frame 600 can be achieved, and safety in a mine roadway is guaranteed.
The embodiment also discloses a mine underground support deformation monitoring method, which adopts the mine underground support deformation monitoring device and comprises the following steps:
s1: measuring the interior of a mine by using a mapping device, and analyzing and planning a construction drawing;
s2: a plurality of tensioning rods 231 are arranged on the mine roadway support frame 600 according to a construction drawing, the plurality of tensioning rods 231 positioned in the same row are connected with the first tension sensor 210 through longitudinal pull ropes 220, the plurality of tensioning rods 231 positioned in the same row are connected with the second tension sensor 330 through transverse pull ropes 320, and the first tension sensor 210 and the second tension sensor 330 are electrically connected with monitoring equipment positioned outside;
s3: a plurality of abutting blocks 420 are arranged on the ground of the mine tunnel, and the plurality of abutting blocks 420 positioned in the same row are connected with the second tension sensor 330 through a measuring rope 430;
s4: monitoring tension changes of the plurality of first tension sensors 210 and the plurality of second tension sensors 330 in real time by an external monitoring device;
s5: the position where the support 600 is deformed is temporarily supported according to the monitoring situation.
The embodiment of the application discloses a mine underground support deformation monitoring device and method's implementation principle does: a plurality of tensioning rods 231 are uniformly arranged on a support frame 600 in a mine, the plurality of tensioning rods 231 positioned in the same row are connected with a first tension sensor 210 through longitudinal pull ropes 220, the plurality of tensioning rods 231 positioned in the same row are connected with a second tension sensor 330 through transverse pull ropes 320, and simultaneously, a plurality of abutting blocks 420 positioned in the same row are connected with the second tension sensor 330 through a measuring rope 430; the monitoring personnel can know the deformation position of the support frame 600 in the mine or the bulge position of the bottom plate of the mine tunnel according to the monitored changes of the tensile forces of the first tension sensor 210 and the second tension sensor 330, so that the synchronous monitoring of the deformation of the support frame 600 in the mine and the bulge of the bottom plate of the mine tunnel is realized.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. The utility model provides a mine underground support deformation monitoring devices which characterized in that: including two supports (100) and multiunit detection mechanism (200), two support (100) are all connected in the mine tunnel, two support (100) are along the length direction interval setting in mine tunnel, multiunit detection mechanism (200) set up two between support (100), every group detection mechanism (200) all include first tension sensor (210), indulge stay cord (220) and a plurality of tensioning piece (230), first tension sensor (210) fixed connection is in one of them support (100), first tension sensor (210) are connected with outside supervisory equipment electricity, the one end of indulging stay cord (220) with first tension sensor (210) are connected, the other end of indulging stay cord (220) with keep away from first tension sensor (210) support (100) fixed connection, a plurality of tensioning piece (230) all fixed connection are on strut (600), a plurality of tensioning piece (230) all with indulge stay cord (220), a plurality of tensioning piece (230) are connected with each other the length direction of indulging stay cord (220) are set up along the length direction of extension cord (220).
2. The mine underground support deformation monitoring device according to claim 1, wherein: each group of detection mechanism (200) further comprises a first tension spring (240), one end of the first tension spring (240) is fixedly connected with the longitudinal pull rope (220), and the other end of the first tension spring (240) is connected with the first tension sensor (210).
3. The mine underground support deformation monitoring device according to claim 1, wherein: the device comprises a plurality of groups of monitoring and positioning mechanisms (300) arranged between two supports (100), wherein the groups of monitoring and positioning mechanisms (300) are arranged in one-to-one correspondence with a plurality of rows of tensioning pieces (230), each group of monitoring and positioning mechanisms (300) comprises a second tension sensor (330) and a transverse pull rope (320), the second tension sensors (330) are fixedly connected to one side wall of a mine roadway, the second tension sensors (330) are electrically connected with external monitoring equipment, one end of each transverse pull rope (320) is fixedly connected with the inner wall of the mine roadway, and the other end of each transverse pull rope (320) sequentially penetrates through a plurality of tensioning pieces (230) in the same row and then is connected with each second tension sensor (330).
4. A mine underground support deformation monitoring device according to claim 3, wherein: every tensioning piece (230) all includes tensioning pole (231), two adapter tubes (232) and two sets of adjusting part (233), tensioning piece (230) fixed connection is in on strut (600), two adapter tubes (232) all sliding connection are in on tensioning pole (231), indulge stay cord (220) connect on one of them adapter tube (232), violently stay cord (320) connect on another adapter tube (232), two sets of adjusting part (233) all connect on tensioning pole (231), two sets of adjusting part (233) with two adapter tube (232) one-to-one sets up, adjusting part (233) are used for driving self correspondence adapter tube (232) removal.
5. A mine underground support deformation monitoring device according to claim 3, wherein: each group of monitoring and positioning mechanisms (300) further comprises a second tension spring (340), one end of the second tension spring (340) is fixedly connected with the transverse pull rope (320), and the other end of the second tension spring (340) is connected with the second tension sensor (330).
6. The mine underground support deformation monitoring device according to claim 5, wherein: the device comprises a plurality of groups of foundation drum monitoring mechanisms (400) arranged between two supports (100), wherein the foundation drum monitoring mechanisms (400) are arranged in one-to-one correspondence with the second tension sensors (330), each group of foundation drum monitoring mechanisms (400) comprises a cover plate (410), a measuring rope (430) and a butt block (420), the cover plates (410) are connected between two side walls of a mine roadway, each butt block (420) is connected to the bottom surface of the mine roadway, one end of each measuring rope (430) is connected to the inner wall of the mine roadway, and the other end of each measuring rope (430) sequentially penetrates through the butt blocks (420) and then is fixedly connected with the second tension springs (340).
7. The mine underground support deformation monitoring device according to claim 6, wherein: keep away from mine side wall of second tension sensor (330) is provided with multiunit coupling assembling (460), multiunit coupling assembling (460) and many measuring ropes (430) one-to-one setting, every group coupling assembling (460) all include supporting shoe (461), connecting block (462) and adjusting screw (463), supporting shoe (461) fixed connection is on mine tunnel lateral wall, connecting block (462) sliding connection is in on supporting shoe (461), connecting block (462) slide along the width direction in mine tunnel, adjusting screw (463) threaded connection is in on supporting shoe (461), one end of adjusting screw (463) with connecting block (462) fixed connection.
8. The mine underground support deformation monitoring device according to claim 1, wherein: be provided with between two support (100) and assist and prop mechanism (500), assist and prop mechanism (500) including assisting strut (510), slip ring (520) and supporting screw (540), assist strut (510) sliding connection two between support (100), slip ring (520) sliding connection is in assist on strut (510), supporting screw (540) threaded connection is in slip ring (520), supporting screw (540) are used for taking place deformation position to strut (600) tensioning piece (230) support.
9. A mine underground support deformation monitoring method is characterized in that: use of a metal mesh-welded nondestructive testing device according to any one of claims 1-8, comprising the steps of:
s1: measuring the interior of a mine by using a mapping device, and analyzing and planning a construction drawing;
s2: a plurality of tensioning rods (231) are arranged on a mine roadway support frame (600) according to a construction drawing, the tensioning rods (231) in the same row are connected with a first tension sensor (210) through longitudinal pull ropes (220), the tensioning rods (231) in the same row are connected with a second tension sensor (330) through transverse pull ropes (320), and the first tension sensor (210) and the second tension sensor (330) are electrically connected with monitoring equipment in the outside;
s3: a plurality of abutting blocks (420) are arranged on the ground of the mine tunnel, and the plurality of abutting blocks (420) positioned in the same row are connected with a second tension sensor (330) through a measuring rope (430);
s4: monitoring tension changes of the first tension sensors (210) and the second tension sensors (330) in real time through external monitoring equipment;
s5: and temporarily supporting the position where the support frame (600) is deformed according to the monitoring condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310257462.0A CN116379951A (en) | 2023-03-13 | 2023-03-13 | Mine underground support deformation monitoring device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310257462.0A CN116379951A (en) | 2023-03-13 | 2023-03-13 | Mine underground support deformation monitoring device and method |
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| CN202310257462.0A Pending CN116379951A (en) | 2023-03-13 | 2023-03-13 | Mine underground support deformation monitoring device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116697868A (en) * | 2023-07-28 | 2023-09-05 | 中煤科工集团武汉设计研究院有限公司 | Roadway deformation monitoring equipment |
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2023
- 2023-03-13 CN CN202310257462.0A patent/CN116379951A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116697868A (en) * | 2023-07-28 | 2023-09-05 | 中煤科工集团武汉设计研究院有限公司 | Roadway deformation monitoring equipment |
| CN116697868B (en) * | 2023-07-28 | 2023-12-12 | 中煤科工集团武汉设计研究院有限公司 | Roadway deformation monitoring equipment |
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