CN115854851B - Goaf earth surface movement deformation monitoring system - Google Patents
Goaf earth surface movement deformation monitoring system Download PDFInfo
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- CN115854851B CN115854851B CN202211270687.1A CN202211270687A CN115854851B CN 115854851 B CN115854851 B CN 115854851B CN 202211270687 A CN202211270687 A CN 202211270687A CN 115854851 B CN115854851 B CN 115854851B
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Abstract
The invention belongs to the technical field of ground surface monitoring, in particular to a goaf ground surface mobile deformation monitoring system, which comprises a server end and a monitoring device, wherein the server end and the monitoring device are connected with each other and exchange data through a wireless network, the server end operates in a machine room server or a cloud server, the monitoring device comprises a first monitoring column, a second monitoring column and a connecting pipe, the first monitoring column and the second monitoring column are connected with each other through the connecting pipe, the first monitoring column and the second monitoring column have the same structure, the first monitoring column comprises a column body, a device bin is arranged in the column body, a solar battery is arranged on the device bin through the connecting column, a first sensor is arranged in the connecting pipe, and the first sensor is used for detecting deformation of the connecting pipe; the invention can simplify the monitoring method, reduce the use cost and the complexity of data processing, and simultaneously improve the monitoring accuracy and the monitoring timeliness.
Description
Technical Field
The invention belongs to the technical field of ground surface monitoring, and particularly relates to a goaf ground surface movement deformation monitoring system.
Background
The goaf is a hole or a cavity which is produced under the ground by artificial excavation or natural geological movement, ground subsidence disasters often occur in the goaf, and personnel and machinery can possibly fall into the goaf to be damaged, so that the safety production of mines faces a large safety problem, and therefore, related equipment is required to be used for real-time monitoring and early warning, and the safety of the personnel and the equipment is ensured.
At present, the ground surface subsidence monitoring mode comprises the steps of using GPS positioning, leveling instrument and the like to measure, but the GPS positioning accuracy is general, the leveling instrument is higher in arrangement cost and is not suitable for being used in a large scale, in addition, when the ground surface deformation is monitored by adopting equipment such as the leveling instrument, the total station and the like, the monitoring method is complex, the data processing is not intuitive, particularly in the area with dangerous topography conditions, the difficulty of measurement is increased, and meanwhile, the mechanical monitoring mode is adopted, but the ground surface subsidence can only be monitored, the whole deviation can not be monitored, and the like, and the subsidence usually occurs after the deviation, so that the ground surface subsidence has certain hysteresis.
Disclosure of Invention
In order to make up for the defects of the prior art, simplify the monitoring method and the use cost, reduce the complexity of data processing, and improve the monitoring accuracy and the monitoring timeliness at the same time, the invention provides a goaf earth surface movement deformation monitoring system.
The technical scheme adopted for solving the technical problems is as follows: the invention discloses a goaf ground surface mobile deformation monitoring system, which comprises a server end and a monitoring device, wherein the server end and the monitoring device are connected with each other and exchange data through a wireless network, the server end operates in a machine room server or a cloud server, the monitoring device comprises a first monitoring column, a second monitoring column and a connecting pipe, the first monitoring column and the second monitoring column are connected with each other through the connecting pipe, the first monitoring column and the second monitoring column are identical in structure, the first monitoring column comprises a column body, a device bin is arranged in the column body, a solar cell is arranged on the device bin through the connecting column, a first sensor is arranged in the connecting pipe, and the first sensor is used for detecting deformation of the connecting pipe.
Preferably, an upper amplifying piece and a lower amplifying piece are arranged in the connecting pipe, and the upper amplifying piece and the lower amplifying piece are parallel to each other;
one end of the upper amplifying piece is hinged to the first monitoring column, the other end of the upper amplifying piece is not in contact with the second monitoring column, a rotating shaft is arranged at one end of the upper amplifying piece, which is close to the first monitoring column, and is arranged on the inner wall of the connecting pipe, and a first sensor is arranged between one end of the upper amplifying piece, which is close to the second monitoring column, and the inner wall of the connecting pipe;
one end of the lower amplifying piece is hinged to the second monitoring column, the other end of the lower amplifying piece is not in contact with the first monitoring column, a rotating shaft is arranged at one end of the lower amplifying piece, which is close to the second monitoring column, the rotating shaft is arranged on the inner wall of the connecting pipe, and a first sensor is arranged between one end of the lower amplifying piece, which is close to the first monitoring column, and the inner wall of the connecting pipe.
Preferably, the surface of the connecting pipe is provided with micro grooves, the micro grooves are distributed along the length direction of the connecting pipe, a plurality of groups of micro grooves are uniformly distributed on the connecting pipe, the micro grooves are filled with piezochromic materials, and the surface of the micro grooves is covered with a plastic sealing layer.
Preferably, a baffle is arranged in the micro-groove, and the baffle divides the micro-groove into a plurality of independent small spaces.
Preferably, a placing frame is installed at the bottom of the device bin, a mounting plate is installed on the placing frame, and a second sensor is installed on the mounting plate and used for detecting deformation of the column body.
Preferably, the second sensors share a plurality of groups, and the second sensors are uniformly distributed around the central line of the column body.
Preferably, rectangular holes which are uniformly distributed are formed in the surface of the column body, the rectangular holes correspond to the second sensors in the column body one by one, deformation blocks are arranged in the rectangular holes and made of rubber materials, detection pieces are arranged on the side faces, facing the second sensors, of the deformation blocks, and the detection pieces are not in contact with the second sensors.
Preferably, the deformation block further comprises a sealing block, the sealing block is located on the side face, facing the second sensor, of the deformation block, the sealing block and the second sensor are connected with each other, the area of the sealing block is larger than that of the rectangular hole, the deformation block and the sealing block are internally provided with cavities, and the detection piece is located on the side face, facing the second sensor, of the sealing block.
The beneficial effects of the invention are as follows:
1. according to the goaf ground surface movement deformation monitoring system, the connecting pipe, the upper amplifying piece and the lower amplifying piece are arranged to amplify tiny displacement and deformation occurring in the monitoring process by using the lever, so that the sensor can conveniently detect the tiny displacement and deformation, errors in detection of the tiny deformation and the displacement are reduced, and the accuracy and timeliness of monitoring are improved.
2. According to the goaf earth surface movement deformation monitoring system, the size and the direction of acting force applied to the cylinder are detected through the cylinder, the deformation block and the sealing block, so that the accuracy of earth surface deformation monitoring is further improved, and errors and misjudgment in monitoring are reduced.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a front view of a monitoring device of the present invention;
FIG. 2 is a partial cross-sectional view of the monitoring device of the present invention;
FIG. 3 is a schematic view of the structure of the first monitor column of the present invention;
FIG. 4 is a cross-sectional view of a first monitor post of the present invention;
FIG. 5 is a schematic view of the construction of the deformation block and closure block of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 2 at A;
FIG. 7 is an enlarged view of a portion of FIG. 3 at B;
in the figure: the device comprises a first monitoring column 1, a column 11, a deformation block 12, a sealing block 121, a detection piece 122, a device bin 13, a connecting column 14, a solar cell 15, a second monitoring column 2, a connecting tube 3, a lower amplifying piece 31, a rotating shaft 311, an upper amplifying piece 32, a first sensor 33, a micro groove 34, a stop 341, a second sensor 4, a placing rack 41 and a mounting plate 42.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 7, the goaf ground surface mobile deformation monitoring system comprises a server end and a monitoring device, wherein the server end and the monitoring device are connected with each other and exchange data through a wireless network, the server end operates in a machine room server or a cloud server, the monitoring device comprises a first monitoring column 1, a second monitoring column 2 and a connecting pipe 3, the first monitoring column 1 and the second monitoring column 2 are connected with each other through the connecting pipe 3, the first monitoring column 1 and the second monitoring column 2 are identical in structure, the first monitoring column 1 comprises a column 11, a device bin 13 is installed in the column 11, a solar cell 15 is installed on the device bin 13 through a connecting column 14, a first sensor 33 is installed in the connecting pipe 3, and the first sensor 33 is used for detecting deformation of the connecting pipe 3;
when monitoring the ground surface of a goaf, a worker drills a mounting hole in the ground of the place to be monitored, then sequentially installs a first monitoring column 1 and a second monitoring column 2 in the monitoring device into the mounting hole, and simultaneously, after the monitoring device is installed, carries out zero resetting operation on the monitoring device, takes the state of the monitoring device after the installation as a reference, avoids the influence on the monitoring device in the installation process, and causes errors in monitoring data, and then, in the monitoring process, the monitoring device sends the monitored data to a server end through a network for analysis and calculation by the server end to judge the movement and deformation condition of the ground surface of the goaf, thereby monitoring and early warning the ground surface deformation and collapse of the goaf and preventing personnel and equipment damage;
meanwhile, when the monitoring device is installed and the goaf earth surface is monitored, the first monitoring column 1 and the second monitoring column 2 are connected with each other through the connecting pipe 3, so that the first monitoring column 1, the second monitoring column 2 and the connecting pipe 3 form a relatively stable whole, meanwhile, in the actual monitoring process, when the earth surface is deformed and collapsed, relative displacement exists between the first monitoring column 1 and the second monitoring column 2, so that the connecting pipe 3 is influenced by the relative displacement between the first monitoring column 1 and the second monitoring column 2 to generate certain deformation and distortion, the data detected by the first sensor 33 installed in the connecting pipe 3 is changed, the monitored data are uploaded to a server end by the monitoring device, specific data of earth surface deformation can be obtained through analysis, and early warning is sent out according to the specific data, and the first sensor 33 is a capacitance sensor in the prior art;
meanwhile, a certain distance exists between the first monitoring column 1 and the second monitoring column 2, so that when the monitoring device monitors the goaf earth surface, the monitoring points are in a strip shape instead of a dot shape, the monitoring range is enlarged, movement and deformation of the earth surface are prevented from being monitored easily when single point positions are monitored, meanwhile, as the two ends of the connecting pipe 3 are fixedly connected between the first monitoring column 1 and the second monitoring column 2, when relative displacement occurs between the first monitoring column 1 and the second monitoring column 2, the displacement between the first monitoring column 1 and the second monitoring column 2 is amplified to a certain extent through the connecting pipe 3, detection of a first sensor 33 in the connecting pipe 3 is facilitated, and the accuracy of the monitoring device on goaf earth surface monitoring is improved;
meanwhile, through the device bin 13 arranged in the column 11, the electric elements in the first monitoring column 1 are installed and protected, so that the situation that external water vapor, dust and the like invade the first monitoring column 1 after the monitoring device is installed on the ground surface of a goaf and damage the electric elements in the monitoring column, the normal operation of the monitoring device is influenced, meanwhile, the solar cell 15 installed above the device bin 13 through the connecting column 14 provides energy for the operation of the first monitoring column 1, and meanwhile, the solar cell 15 is located above the column 11 and relatively close to the first monitoring column 1 in distance, in the actual use process, the solar cell 15 plays a certain shielding role on the first monitoring column 1, rainwater is prevented from invading the inside of the first monitoring column 1, a certain indicating role is played on the first monitoring column 1, workers can quickly and conveniently find the installation position of the monitoring device in the field, and the monitoring device is convenient to maintain the monitoring device.
As an embodiment of the present invention, an upper amplifying piece 32 and a lower amplifying piece 31 are installed in the connecting pipe 3, and the upper amplifying piece 32 and the lower amplifying piece 31 are parallel to each other;
one end of the upper amplifying piece 32 is hinged to the first monitoring column 1, the other end of the upper amplifying piece 32 does not contact the second monitoring column 2, a rotating shaft 311 is arranged at one end of the upper amplifying piece 32 close to the first monitoring column 1, the rotating shaft 311 is arranged on the inner wall of the connecting pipe 3, and a first sensor 33 is arranged between one end of the upper amplifying piece 32 close to the second monitoring column 2 and the inner wall of the connecting pipe 3;
one end of the lower amplifying piece 31 is hinged to the second monitoring column 2, the other end of the lower amplifying piece 31 is not in contact with the first monitoring column 1, a rotating shaft 311 is arranged at one end, close to the second monitoring column 2, of the lower amplifying piece 31, the rotating shaft 311 is arranged on the inner wall of the connecting pipe 3, and a first sensor 33 is arranged between one end, close to the first monitoring column 1, of the lower amplifying piece 31 and the inner wall of the connecting pipe 3;
when the goaf surface moves, deforms and collapses, due to the fact that a certain distance exists between the first monitoring column 1 and the second monitoring column 2, relative displacement exists between the first monitoring column 1 and the second monitoring column 2, meanwhile, a lever structure is formed among the upper amplifying plate 32, the rotating shaft 311 and the first monitoring column 1, a lever structure is formed among the lower amplifying plate 31, the rotating shaft 311 and the second monitoring column 2, when relative displacement exists between the first monitoring column 1 and the second monitoring column 2, the upper amplifying plate 32 and the lower amplifying plate 31 can be seen to have relatively large displacement according to the lever principle, accordingly, relatively small displacement of the first monitoring column 1 and the second monitoring column 2 is amplified, detection of the first sensor 33 is facilitated, data errors caused by small displacement detection are reduced, then, the monitoring device sends data detected by the two groups of the first sensors 33 in the connecting pipe 3 to the server end, and the relative displacement between the first monitoring column 1 and the second monitoring column 2 is determined through analysis and calculation of the server end, and accordingly, the goaf surface movement data is further improved, and the goaf surface movement data is obtained.
As an embodiment of the present invention, the surface of the connecting pipe 3 is provided with micro grooves 34, the micro grooves 34 are distributed along the length direction of the connecting pipe 3, the micro grooves 34 are uniformly distributed on the connecting pipe 3, the micro grooves 34 are filled with a piezochromic material, and the surface of the micro grooves 34 is covered with a plastic cover layer;
because the surface environment of the goaf is different, the staff can not all select flat and horizontal ground to install when installing monitoring equipment, in addition, because the staff has small errors in the installation process, the deviation and skew of the drilling position for installing the monitoring device can be caused, the situation that the deviation and skew exist between the first monitoring column 1 and the second monitoring column 2 of the monitoring device can be caused, if the staff can not timely perceive, the accuracy of the monitoring device in monitoring and the normal operation of the monitoring device can be easily influenced, a plurality of groups of evenly distributed micro grooves 34 are formed in the connecting pipe 3, and the micro grooves 34 are filled with the piezochromic material, so that when the error occurs in the installation process of the staff, the piezochromic material in the micro grooves 34 is changed in compression color, and the staff is timely reminded of adjusting, thereby ensuring that the relative displacement, the distortion and the deformation do not exist between the first monitoring column 1, the second monitoring column 2 and the connecting pipe 3, ensuring that the data error detected by the subsequent monitoring device is small, and the normal operation of the monitoring device can be avoided, meanwhile, the mounting error of the monitoring device is also prevented, the amplified data of the internal amplifying piece 31 is enlarged, and the internal data of the amplifying piece or the amplifying piece 31 is enlarged, and the internal data of the amplifying piece is accurately enlarged, and the internal piece is 32 is enlarged, and the internal data is enlarged, and the internal is caused.
As an embodiment of the present invention, a stopper 341 is disposed in the micro groove 34, and the stopper 341 divides the micro groove 34 into a plurality of independent small spaces;
the micro groove 34 is divided into a plurality of independent small spaces through the stop block 341, so that the piezochromic material in the micro groove 34 is divided into a plurality of parts and is relatively independent among the parts, the situation that after a plastic sealing cover layer covered on the surface of the micro groove 34 is damaged, the piezochromic material in the micro groove 34 is completely invalid is avoided, meanwhile, in the installation process of the monitoring device, the deformation force or the torsion force of the connecting pipe 3 is determined by observing the quantity of the small spaces with changed colors of the piezochromic material, the installation position of the monitoring device is convenient for workers to timely adjust when the monitoring device is installed, the follow-up normal work of the monitoring device is ensured, meanwhile, the stress position and the stress direction on the connecting pipe 3 are approximately determined by workers, so that the workers can more pertinently adjust the installation position of the monitoring device, the error of the monitoring device is reduced, the ground surface monitoring accuracy of the goaf monitoring device is improved, and the error of the data is detected by the monitoring device is reduced.
As one embodiment of the present invention, a placement frame 41 is installed at the bottom of the device bin 13, a mounting plate 42 is installed on the placement frame 41, and a second sensor 4 is installed on the mounting plate 42, where the second sensor 4 is used for detecting deformation of the column 11;
after the monitoring device is installed, the first monitoring column 1 and the second monitoring column 2 are buried in a borehole drilled on the ground by a worker, so that the lower part of the column 11 is positioned below the ground, meanwhile, the connecting pipe 3 in the monitoring device is positioned above the ground, in the process of monitoring the goaf ground surface by the monitoring device, along with the influence of activities of small animals, rolling stones and falling stones, the connecting pipe 3 has accidental deformation, so that the possibility of error of detection data of the monitoring device is caused, and meanwhile, when the goaf ground surface moves, deforms, collapses and the like, the lower part of the column 11 positioned below the ground is subjected to the acting force of soil on the column 11, so that the column 11 with hollow inside is slightly deformed, at this time, deformation of the column 11 is detected through the second sensor 4 arranged inside the column 11, deformation data generated by the column 11 under soil extrusion is obtained, then, the monitoring device synchronously sends data detected by the first sensor 33 and the second sensor 4 to the server, the data detected by the first sensor 33 and the second sensor 4 are compared at the server, the accuracy of analysis and judgment of the ground surface deformation condition is further improved, the single first sensor 33 or the second sensor 4 is prevented from detecting, misjudgment is easily caused due to the influence of external environment, the accuracy of monitoring the ground surface deformation by the monitoring device is affected, and meanwhile, the second sensor 4 is the same as the first sensor 33 and is a capacitance sensor.
As one embodiment of the present invention, the second sensors 4 share a plurality of groups, and the second sensors 4 are uniformly distributed around the center line of the column 11;
because the cylinder 11 is internally provided with a plurality of groups of second sensors 4 which are uniformly distributed, the size and the direction of stress of the cylinder 11 in soil can be determined through the cooperation between the second sensors 4 in symmetrical directions, and then, after the data uploaded by a plurality of groups of monitoring devices are comprehensively analyzed and compared at a server end, the overall deformation trend of the ground surface and the related data of movement, deformation and collapse in the area where the monitoring devices are installed can be obtained, the basis is given for early warning, and meanwhile, the accuracy of detecting the stress size and the direction of the cylinder 11 is improved through the increase and decrease of the number of the second sensors 4 in the cylinder 11, the error of the monitoring devices in the ground surface deformation monitoring is further reduced, and the monitoring accuracy is improved.
As an embodiment of the present invention, rectangular holes are uniformly distributed on the surface of the column 11, the rectangular holes are in one-to-one correspondence with the second sensors 4 in the column 11, deformation blocks 12 are installed in the rectangular holes, the deformation blocks 12 are made of rubber materials, detection pieces 122 are installed on the side of the deformation blocks 12 facing the second sensors 4, and the detection pieces 122 do not contact the second sensors 4;
in the practical use process, in order to ensure the installation and normal use of the monitoring device, the column 11 needs to have enough strength to avoid damage to the monitoring device caused by small animals or broken stone collision, so that when the movement, deformation and collapse of the earth surface occur, the acting force on the column 11 at the initial stage is relatively small, the column 11 is not easy to deform and then is detected by the second sensor 4, so that the monitoring device cannot timely and effectively detect the movement, deformation, collapse and other conditions of the earth surface, and make corresponding early warning, rectangular holes are formed in the surface of the column 11, deformation blocks 12 made of rubber materials are arranged in the rectangular holes, and when the movement, deformation, collapse and other conditions occur on the earth surface, the deformation blocks 12 on the column 11 can timely deform and further drive the detection pieces 122 arranged on the side surfaces of the deformation blocks 12 towards the second sensor 4 to detect the earth surface, the monitoring device can conveniently detect the earth surface movement, deformation, collapse and other conditions, and the early warning capability is improved.
As an embodiment of the present invention, the deformation block 12 further includes a sealing block 121, the sealing block 121 is located on a side surface of the deformation block 12 facing the second sensor 4, and the sealing block 121 and the sealing block are connected with each other, an area of the sealing block 121 is larger than an area of the rectangular hole, cavities are formed inside the deformation block 12 and the sealing block 121, and the detection piece 122 is located on the side surface of the sealing block 121 facing the second sensor 4;
because cylinder 11 is buried underground with the ground, after the rectangular hole is offered on cylinder 11 surface and install the enclosed block 121 in the rectangular hole, steam in the soil is easy to permeate to the cylinder 11 inside through the space between enclosed block 121 and the rectangular hole, damage is produced to the electrical component in the cylinder 11, influence monitoring devices's normal use, consequently, through set up enclosed block 121 on the deformation piece 12, seal rectangular hole and the space between the deformation piece 12 through enclosed block 121, avoid or reduce steam infiltration in the soil and enter into the cylinder 11 inside, simultaneously, because set up the cavity in deformation piece 12 and enclosed block 121 inside, receive the effort at the side of deformation piece 12 contact soil, after the emergence is deformed, the cavity volume in deformation piece 12 and the enclosed block 121 changes, gas through the cavity inside passes the effort on the side of enclosed block 121 towards second sensor 4, drive enclosed block 121 and warp towards the side of second sensor 4, because the detection piece is installed on enclosed block 121, thereby after enclosed block 121 warp towards the side of second sensor 4, drive detection piece 121 and remove the whole, it is convenient for the detection piece to move, detect the influence on the detection device is close to the side of second sensor 4, and the influence on the detection device is avoided the deformation piece is received to the side of the deformation, and the detection device is close to the deformation is influenced by the side of the deformation piece is because of the side of the sensor, the deformation piece is located in the area, and the detection device is not influenced by the detection of the sensor is.
The specific working procedure is as follows:
when monitoring the ground surface of the goaf, a worker drills a mounting hole in the ground of a place to be monitored, then sequentially installs a first monitoring column 1 and a second monitoring column 2 in the monitoring device into the mounting hole, and simultaneously, after the monitoring device is installed, carries out zero resetting operation on the monitoring device, takes the state of the installed monitoring device as a reference, and then, in the monitoring process, the monitoring device sends monitored data to a server end through a network for the server end to carry out analysis and calculation and judge the movement and deformation condition of the ground surface of the goaf;
meanwhile, as a certain distance exists between the first monitoring column 1 and the second monitoring column 2, when the ground surface deforms and collapses, relative displacement exists between the first monitoring column 1 and the second monitoring column 2, so that the connecting pipe 3 is influenced by the relative displacement between the first monitoring column 1 and the second monitoring column 2 to generate certain deformation and distortion, the data detected by the first sensor 33 arranged in the connecting pipe 3 are changed, and then the specific data of the ground surface deformation can be obtained through analysis after the monitored data are uploaded to a server side by the monitoring device;
meanwhile, the electric elements in the first monitoring column 1 are installed and protected through the device bin 13 arranged in the column 11, and meanwhile, the solar cells 15 installed above the device bin 13 through the connecting column 14 provide energy for the operation of the first monitoring column 1;
because the lever structure is formed among the upper amplifying plate 32, the rotating shaft 311 and the first monitoring column 1, the lower amplifying plate 31, the rotating shaft 311 and the second monitoring column 2, when relative displacement exists between the first monitoring column 1 and the second monitoring column 2, the lever principle can know that relatively larger displacement exists between the upper amplifying plate 32 and the lower amplifying plate 31, so that relatively smaller displacement of the first monitoring column 1 and the second monitoring column 2 is amplified, the first sensor 33 is convenient to detect, and then the monitoring device sends data detected by the two groups of first sensors 33 in the connecting pipe 3 to the server end, and the server end is used for analyzing and calculating to determine the respective displacement of the first monitoring column 1 and the second monitoring column 2 and the relative displacement between the two;
by arranging a plurality of groups of micro grooves 34 which are uniformly distributed on the connecting pipe 3 and filling the micro grooves 34 with piezochromic materials, when errors occur in the installation of the monitoring device, the piezochromic materials in the micro grooves 34 are changed in pressed color, and the staff is timely reminded of adjustment;
the micro groove 34 is divided into a plurality of independent small spaces by the stop block 341, so that the piezochromic material in the micro groove 34 is divided into a plurality of parts and the parts are relatively independent;
when the ground surface of the goaf moves, deforms, collapses and the like, the lower part of the column 11 positioned below the ground is subjected to the acting force of soil, so that the column 11 with the hollow inside slightly deforms, at the moment, the deformation of the column 11 is detected through the second sensor 4 arranged inside the column 11, deformation data generated by the column 11 under the extrusion of the soil are obtained, and then the monitoring device synchronously sends the data detected by the first sensor 33 and the second sensor 4 to a server end, and the data detected by the first sensor and the second sensor are compared at the server end;
because the cylinder 11 is internally provided with a plurality of groups of second sensors 4 which are uniformly distributed, the size and the direction of the stress of the cylinder 11 in the soil can be determined through the cooperation between the second sensors 4 in the symmetrical direction, and then, after comprehensively analyzing and comparing the data uploaded by a plurality of groups of monitoring devices at a server end, the deformation trend of the whole ground surface in the area where the monitoring devices are installed and the related data of movement, deformation and collapse can be obtained;
a rectangular hole is formed in the surface of the column 11, a deformation block 12 made of rubber materials is arranged in the rectangular hole, when the surface of the earth moves, deforms, collapses and the like, the deformation block 12 on the column 11 can timely deform when the soil generates acting force on the column 11, and further the deformation block 12 is driven to move towards a detection piece 122 on the side surface of the second sensor 4, so that the second sensor 4 can conveniently detect the deformation block;
through set up the shutoff piece 121 on the deformation piece 12, seal rectangular hole and the space between the deformation piece 12 through the shutoff piece 121, simultaneously, because set up the cavity in deformation piece 12 and shutoff piece 121 inside, receive the effort at the side of deformation piece 12 contact soil, after the emergence is out of shape, the cavity volume of deformation piece 12 and shutoff piece 121 inside changes, on the side of the inside gaseous transmission effort of cavity closure piece 121 orientation second sensor 4, drive the side of shutoff piece 121 orientation second sensor 4 takes place to warp, afterwards drive the whole emergence of detection piece and remove, the detection of second sensor 4 of being convenient for.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a goaf earth's surface removes deformation monitoring system, includes server end and monitoring devices, interconnect and exchange data, its characterized in that between server end and the monitoring devices through wireless network: the monitoring device comprises a first monitoring column (1), a second monitoring column (2) and a connecting pipe (3), wherein the first monitoring column (1) and the second monitoring column (2) are connected with each other through the connecting pipe (3), the first monitoring column (1) comprises a column body (11), a device bin (13) is arranged in the column body (11), a first sensor (33) is arranged in the connecting pipe (3), and the first sensor (33) is used for detecting deformation of the connecting pipe (3);
an upper amplifying piece (32) and a lower amplifying piece (31) are arranged in the connecting pipe (3), and the upper amplifying piece (32) and the lower amplifying piece (31) are parallel to each other;
one end of the upper amplifying sheet (32) is hinged to the first monitoring column (1), the other end of the upper amplifying sheet (32) is not in contact with the second monitoring column (2), a rotating shaft (311) is arranged at one end, close to the first monitoring column (1), of the upper amplifying sheet (32), the rotating shaft (311) is arranged on the inner wall of the connecting pipe (3), and a first sensor (33) is arranged between one end, close to the second monitoring column (2), of the upper amplifying sheet (32) and the inner wall of the connecting pipe (3);
one end of the lower amplifying piece (31) is hinged to the second monitoring column (2), the other end of the lower amplifying piece (31) is not in contact with the first monitoring column (1), a rotating shaft (311) is arranged at one end, close to the second monitoring column (2), of the lower amplifying piece (31), the rotating shaft (311) is arranged on the inner wall of the connecting pipe (3), and a first sensor (33) is arranged between one end, close to the first monitoring column (1), of the lower amplifying piece (31) and the inner wall of the connecting pipe (3).
2. The goaf earth surface movement deformation monitoring system as claimed in claim 1, wherein: the surface of the connecting pipe (3) is provided with a micro groove (34), the micro groove (34) is filled with a piezochromic material, and the surface of the micro groove (34) is covered with a plastic sealing layer.
3. The goaf earth surface movement deformation monitoring system according to claim 2, wherein: a stop block (341) is arranged in the micro groove (34), and the stop block (341) divides the micro groove (34) into a plurality of independent small spaces.
4. The goaf earth surface movement deformation monitoring system as claimed in claim 1, wherein: the device bin is characterized in that a placing frame (41) is arranged at the bottom of the device bin (13), a mounting plate (42) is arranged on the placing frame (41), a second sensor (4) is arranged on the mounting plate (42), and the second sensor (4) is used for detecting deformation of the column body (11).
5. The goaf earth surface movement deformation monitoring system as claimed in claim 4, wherein: the second sensors (4) share a plurality of groups, and the second sensors (4) are uniformly distributed around the central line of the column body (11).
6. The goaf earth surface movement deformation monitoring system as claimed in claim 5, wherein: rectangular holes which are uniformly distributed are formed in the surface of the column body (11), the rectangular holes correspond to the second sensors (4) in the column body (11) one by one, deformation blocks (12) are arranged in the rectangular holes, and detection pieces (122) are arranged on the side faces, facing the second sensors (4), of the deformation blocks (12).
7. The goaf earth surface movement deformation monitoring system as claimed in claim 6, wherein: the deformation block (12) further comprises a sealing block (121), the sealing block (121) is located on the side face, facing the second sensor (4), of the deformation block (12), the sealing block (121) and the second sensor are connected with each other, the area of the sealing block (121) is larger than that of the rectangular hole, a cavity is formed in the deformation block (12) and the sealing block (121), and the detection piece (122) is located on the side face, facing the second sensor (4), of the sealing block (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211270687.1A CN115854851B (en) | 2023-01-31 | 2023-01-31 | Goaf earth surface movement deformation monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211270687.1A CN115854851B (en) | 2023-01-31 | 2023-01-31 | Goaf earth surface movement deformation monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115854851A CN115854851A (en) | 2023-03-28 |
| CN115854851B true CN115854851B (en) | 2023-06-23 |
Family
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| CN104236446B (en) * | 2014-05-08 | 2017-05-31 | 珠海市泰德企业有限公司 | Drilling multi -components strain measurement head |
| CN104863635B (en) * | 2015-04-21 | 2017-04-05 | 西南石油大学 | A kind of automatic monitoring alarm and its using method of tunnel subsidence |
| CN107421588B (en) * | 2017-08-25 | 2020-03-31 | 吉林建筑大学 | Fiber bragg grating sensing mine safety monitoring system with anchor rod as sensing medium |
| CN210004987U (en) * | 2019-07-25 | 2020-01-31 | 邸伟 | moving deformation fixed point surveying and mapping monitor for coal mining earth surface |
| CN111156954A (en) * | 2020-01-17 | 2020-05-15 | 安徽理工大学 | Method for monitoring surface deformation of coal mine exploitation under thick unconsolidated formation |
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