Mine underground stress and micro-seismic cooperative intelligent monitoring device and installation method

Abstract

The invention relates to a mine underground stress and micro-seismic cooperative intelligent monitoring device and an installation method, and belongs to the technical field of mine surrounding rock stability monitoring and geological disaster early warning, and the device comprises a data monitoring unit, an auxiliary installation unit and an intelligent early warning prediction unit; the data monitoring unit is arranged at the bottom of the drill hole, and the data monitoring unit is matched with the auxiliary mounting unit in an inserted mode; the intelligent early warning and prediction unit is arranged on the surface of surrounding rock outside a drill hole and is in communication connection with the data monitoring unit through a cable. According to the invention, integration of stress and microseismic sensing elements is realized, monitoring data can be synchronously acquired and processed, data transmission delay is reduced, monitoring efficiency is improved, dynamic real-time early warning and prediction of geological disasters are realized, when the microseismic sensing elements monitor abnormal vibration events, the stress sensing elements can be synchronously triggered to enter a high-frequency sampling mode, and real-time early warning and prediction of geological disasters are realized. The temporal-spatial resolution of monitoring data is improved, and the construction of a geological disaster long-term early warning and prediction system can be met through the combination of historical data and real-time monitoring data.

Description

Technical Field

[0001] The present invention belongs to the technical field of mine surrounding rock stability monitoring and geological disaster early warning, and particularly relates to a device and installation method for collaborative intelligent monitoring of stress and microseismicity in underground mines. Background Art

[0002] With the increasing depletion of shallow resources in mines, the mining depth of mines is continuously increasing, and deep mines are facing more severe geological conditions, including complex mechanical environments such as high stress, high water pressure, high ground temperature, and mining disturbances. In such an environment, the stress state of the surrounding rock is extremely complex, and disasters such as roof caving, goaf collapse, and water inrush are extremely likely to occur, posing a serious threat to the safety of personnel and equipment. Therefore, in order to achieve safe production in mines, it is very necessary to accurately monitor and effectively early warn geological disasters in deep mines. At present, in the monitoring of mine geological disasters, microseismic monitoring technology and stress gauge monitoring technology are the two most commonly used methods.

[0003] Microseismic monitoring technology is a non-destructive testing method based on seismological principles, mainly used to monitor the micro-fracture activities inside rock masses. When the surrounding rock is stressed and fractured or deformed, microseismic wave signals will be released. By using microseismic sensors arranged in the mine, key parameters such as the triggering time, hypocenter location, magnitude, and energy release generated during the rock fracture process can be captured, so as to quantitatively characterize the spatio-temporal evolution characteristics of surrounding rock fractures, evaluate the degree of rock mass damage and failure mode, judge the development of fractures in the rock mass and the risk of water inrush, and realize the early preliminary identification of geological disasters such as rock bursts and caving in mines.

[0004] Stress monitoring technology is mainly used to measure the stress state inside the surrounding rock and its change over time, reflecting the stress characteristics and stress evolution process of the rock mass. Its core principle is to use sensing devices such as strain gauges, hydraulic or vibrating wire stress gauges to measure the stress field distribution inside the rock mass, and analyze the stability and instability trend of the surrounding rock in combination with mining disturbance conditions. It can be used to evaluate the stress concentration area of the surrounding rock, identify potential high-risk areas, monitor the stress changes of the rock mass during excavation, support, or long-term operation, optimize the support design, and prevent sudden disasters such as rock bursts and roof caving. During the mine mining process, reasonably arranging stress gauges can effectively evaluate the stress adjustment mechanism of roadway surrounding rock, identify high-stress concentration areas, provide technical support for the optimization and adjustment of the mining plan, thereby reducing the occurrence probability of mine dynamic disasters and improving the safety of the mine.

[0005] However, microseismic monitoring and stress monitoring are usually carried out independently and each plays its own role, and collaborative monitoring has not been achieved. Therefore, the following limitations exist: ①. Microseismic monitoring technology mainly relies on the occurrence of rock fracture events. That is, only after a certain degree of damage or fracture occurs inside the rock mass can the microseismic sensor detect the corresponding signal, making it difficult to comprehensively reflect the processes such as stress accumulation and damage evolution in the rock mass. In some areas where no obvious microseismic events have occurred, there is a certain lag in the monitoring results, thus affecting the early warning ability of disasters. ②. Stress gauge monitoring usually relies on local measurements. Limited by the installation location of the sensor and the characteristics of point measurements, it is difficult to comprehensively reflect the stress distribution in the entire mine area. Especially in complex geological environments, stress measurements will be affected by factors such as temperature changes and sensor contact conditions, resulting in certain uncertainties in the data.

[0006] In summary, although microseismic monitoring can capture rock fracture signals, it is difficult to provide the stress accumulation process before fracture occurs; although stress monitoring can reflect the stress state of the rock mass, it cannot directly reveal the damage state of the rock mass. Since geological disasters are often the result of the combined action of multiple factors such as stress accumulation, rock mass damage, and crack expansion, the early warning ability of a single monitoring method before a disaster occurs is limited. Relying solely on microseismic monitoring is difficult to detect hidden dangers in the low-stress accumulation stage in a timely manner, and relying solely on stress monitoring cannot identify the occurrence of sudden dynamic disasters. Since the data of the two monitoring methods are usually stored and analyzed independently, it is difficult to form a complete surrounding rock stability evaluation system, thus affecting the accuracy and reliability of mine safety early warning. Summary of the Invention

[0007] Aiming at the problems existing in the prior art, the present invention provides a collaborative intelligent monitoring device and installation method for stress and microseismic in underground mines, which realizes the high integration of stress sensing elements and microseismic sensing elements. The stress monitoring data and microseismic monitoring data can be synchronously collected and processed, reducing data transmission delay, improving monitoring efficiency, and realizing dynamic real-time early warning and prediction of deep geological disasters in mines. When the microseismic sensing element detects an abnormal vibration event, it can synchronously trigger the stress sensing element to enter the high-frequency sampling mode to improve the spatio-temporal resolution of the monitoring data, optimize the data acquisition strategy, and meet the construction of a long-term early warning and prediction system for geological disasters through the combination of historical data and real-time monitoring data, providing technical support for improving the early warning ability and prediction accuracy. In terms of structural design, a modular design route is adopted, optimizing the installation, disassembly, and recovery processes of the device, reducing the difficulty of installation, disassembly, and recovery of the device and the operation and maintenance costs. The data monitoring unit after installation can operate stably for a long time, effectively ensuring the effectiveness and reliability of data monitoring, and thus ensuring the accuracy and reliability of mine safety early warning.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a device for collaborative intelligent monitoring of stress and microseismicity in underground mines, comprising a data monitoring unit, an auxiliary installation unit and an intelligent early warning and prediction unit; the data monitoring unit is arranged at the bottom of the borehole, and the data monitoring unit is plugged into and matched with the auxiliary installation unit; the intelligent early warning and prediction unit is arranged on the external surrounding rock surface of the borehole, and the intelligent early warning and prediction unit is communicatively connected with the data monitoring unit via a cable.

[0009] The data monitoring unit comprises a data monitoring mechanism and a hole wall supporting and fixing mechanism, and the hole wall supporting and fixing mechanism is arranged outside the data monitoring mechanism.

[0010] The data monitoring mechanism includes a transfer stud, a protective sleeve, a sensor element packaged core column, a protective head and a packaged core column guide sleeve; the outer surface of the front half of the transfer stud is provided with an external thread; the inner surface of the rear half of the protective sleeve is provided with an internal thread, and the rear half of the protective sleeve is coaxially sleeved on the outside of the front half of the transfer stud and threadedly connected; the protective head is fixed to the front end of the protective sleeve; a packaged core column insertion hole is provided at the center of the front end of the transfer stud, the rear end of the sensor element packaged core column is slidably plugged into the packaged core column insertion hole, and the front end of the sensor element packaged core column is provided with a packaged core column plug-in hole. It is fixedly connected with the protective head; a guide sleeve insertion ring groove is arranged at the orifice of the packaging core column insertion hole; the packaging core column guide sleeve is coaxially sleeved on the outside of the sensor element packaging core column, and the rear end of the packaging core column guide sleeve is inserted in the guide sleeve insertion ring groove, and a guide sleeve elastic limiting buckle is arranged between the guide sleeve insertion ring groove and the packaging core column guide sleeve; micro-seismic sensor elements, stress sensor elements and integrated data acquisition and transmission elements are respectively installed axially inside the sensor element packaging core column; force transmission support spokes are evenly fixed along the circumferential direction between the sensor element packaging core column and the front half of the cylinder of the protective sleeve.

[0011] The hole wall support and fixing mechanism includes a limiting rear ring plate, a limiting front ring plate and a hole wall support assembly; the limiting rear ring plate is coaxially fixedly sleeved on the outside of the adapter stud; the limiting front ring plate is coaxially fixedly sleeved on the outside of the protective head; the hole wall support assembly is arranged between the limiting rear ring plate and the limiting front ring plate, and there are a plurality of hole wall support assemblies, which are evenly distributed along the circumferential direction of the protective sleeve.

[0012] The hole wall support assembly includes a rear guide rail, a front guide rail, a rail transfer rib, a front support force transmission swing rod, a rear support force transmission swing rod, a hole wall support plate and a support plate transfer rib; a rear rail guide groove is provided on the front surface of the rear limit ring plate, the rear end of the rear guide rail is located in the rear rail guide groove, the rear guide rail only has a circumferential sliding freedom degree relative to the rear rail guide groove, and the lower surface of the rear guide rail is in contact with the outer surface of the protective sleeve; the rail transfer rib is fixedly arranged on the upper surface of the rear guide rail, and a front rail guide chute is arranged on the rear guide rail below the rail transfer rib; the rear end of the front guide rail is inserted into the front rail guide chute, the front guide rail only has a linear sliding freedom degree relative to the front rail guide chute, the front end of the front guide rail is fixedly connected to the rear surface of the front limit ring plate, and the lower surface of the front guide rail is in contact with the outer surface of the protective sleeve; the hole wall support plate is located above the rail transfer rib; the support plate transfer rib is fixedly arranged on the lower surface of the hole wall support plate; the lower end of the front support force transmission swing rod is hinged to the front end of the rail transfer rib, and the upper end of the front support force transmission swing rod is hinged to the front end of the support plate transfer rib; the lower end of the rear support force transmission swing rod is hinged to the rear end of the rail transfer rib, and the upper end of the rear support force transmission swing rod is hinged to the rear end of the support plate transfer rib; the rail transfer rib, the front support force transmission swing rod, the support plate transfer rib and the rear support force transmission swing rod form a parallelogram structure; a front limit probe rod is fixedly installed on the lower surface of the front end of the hole wall support plate; a support plate radial guide chute is arranged on the front limit ring plate, the front limit probe rod is located in the support plate radial guide chute, and the front limit probe rod only has a linear sliding freedom degree relative to the support plate radial guide chute.

[0013] The auxiliary mounting unit comprises a front auxiliary mounting support rod, an intermediate auxiliary mounting support rod and a rear auxiliary mounting support rod; a cross-shaped plug is fixedly arranged at the front end of the front auxiliary mounting support rod, and an external thread is arranged on the outer surface of the rod body at the rear end of the front auxiliary mounting support rod; a cross-shaped jack is arranged at the rear end center of the adapter stud, and the cross-shaped jack is plugged and matched with the cross-shaped plug; an internal thread is arranged on the inner surface of the rod body at the front end of the intermediate auxiliary mounting support rod, and an external thread is arranged on the outer surface of the rod body at the rear end of the intermediate auxiliary mounting support rod; an internal thread is arranged on the inner surface of the rod body at the front end of the rear auxiliary mounting support rod, and an annular handle is fixedly installed on the outer side of the rod body at the rear end of the rear auxiliary mounting support rod, and an anti-slip rubber sleeve is installed on the annular handle; the number of intermediate auxiliary mounting support rods is as follows: A plurality of intermediate auxiliary mounting support rods are connected in series by threads; when the front auxiliary mounting support rod and the rear auxiliary mounting support rod are connected in series by threads, the connection between the front auxiliary mounting support rod and the rear auxiliary mounting support rod is locked by a support rod locking mechanism; when the front auxiliary mounting support rod, the intermediate auxiliary mounting support rod and the rear auxiliary mounting support rod are connected in series by threads, the connection between the front auxiliary mounting support rod and the intermediate auxiliary mounting support rod, the connection between adjacent intermediate auxiliary mounting support rods, and the connection between the intermediate auxiliary mounting support rod and the rear auxiliary mounting support rod are also all locked by a support rod locking mechanism; cable guide buckles are fixedly provided on the outer surfaces of the rod bodies of the front auxiliary mounting support rod, the intermediate auxiliary mounting support rod and the rear auxiliary mounting support rod.

[0014] The support rod locking mechanism comprises a locking block, a locking snap ring, a handle, an ear seat, a transmission frame, a transmission plate, a transmission rod and a thrust spring; the locking block and the ear seat are respectively fixedly arranged on the outer surfaces of the support rod on both sides of the connection point of the auxiliary mounting support rod; the rear end of the handle is hinged on the ear seat, and the front end of the handle is a free end; the transmission plate is located inside the transmission frame, and the transmission plate divides the internal space of the transmission frame into a front chamber and a rear chamber, and a transmission plate guide slot is provided on the transmission frame, and the transmission plate has only a linear sliding degree of freedom relative to the transmission plate guide slot; the ear seat is located in the rear chamber of the transmission frame, and the rear end of the transmission frame is hinged to the middle and rear part of the handle; one end of the transmission rod is fixedly connected to the locking snap ring, and the other end of the transmission rod penetrates into the front chamber of the transmission frame and is fixedly connected to the transmission plate; the thrust spring is located in the front chamber of the transmission frame and is sleeved on the outside of the transmission rod, and the thrust spring is supported between the transmission plate and the transmission frame; the locking snap ring is engaged with the locking block.

[0015] The intelligent early warning and prediction unit adopts a box structure, including a protective box body, a sealing cover plate, a computer, an early warning light, an early warning horn, an auxiliary handle, a power switch and a sealing wire threading mechanism; the computer is installed inside the protective box body, the sealing cover plate is fixedly installed on the protective box body by screws, and the protective box body is fixedly installed on the surrounding rock surface through a bolt adapter; auxiliary handles are arranged on both the top and side of the protective box body; the early warning light and the early warning horn are both fixedly arranged on the top of the protective box body; the power switch is arranged at the bottom of the protective box body, and a plurality of wire threading holes are also arranged at the bottom of the protective box body, and a sealing wire threading mechanism is arranged in each wire threading hole, and the cable passes through the sealing wire threading mechanism and is connected to the computer.

[0016] The sealing wire threading mechanism includes an inner double-headed external hexagon nut, an intermediate double-headed external hexagon nut and an external plug nut; the middle part of the inner double-headed external hexagon nut is an external hexagon cross-section segment, and external threads are arranged on the outer surface of the nut on both sides of the external hexagon cross-section segment; the middle part of the intermediate double-headed external hexagon nut is an external hexagon cross-section segment, and internal threads are arranged on the inner surface of the nut on both sides of the external hexagon cross-section segment; the external plug nut is in threaded connection and cooperation with the intermediate double-headed external hexagon nut, the intermediate double-headed external hexagon nut is in threaded connection and cooperation with the inner double-headed external hexagon nut, and the inner double-headed external hexagon nut is in threaded connection and cooperation with the wire threading hole at the bottom of the protective box body; waterproof rubber is filled inside the inner double-headed external hexagon nut, the intermediate double-headed external hexagon nut and the external plug nut, and a cable sealing through hole is arranged at the center of the waterproof rubber.

[0017] An installation method of a stress and microseismic collaborative intelligent monitoring device for underground mines adopts the stress and microseismic collaborative intelligent monitoring device for underground mines, and includes the following steps: Step 1: Use a drill to complete the processing of the drill hole on the surrounding rock. The diameter of the drill hole is larger than the minimum adjustable diameter of the hole wall support component and smaller than the maximum adjustable diameter of the hole wall support component. The depth of the drill hole is larger than the sum of the lengths of the data monitoring unit and the front auxiliary installation support rod. Step 2: Determine the length of the auxiliary installation unit according to the depth of the drill hole, and then select the required number of intermediate auxiliary installation support rods. Step 3: Adjust the hole wall support component to the minimum adjustable diameter state, then pick up the front auxiliary installation support rod, insert the cross-shaped plug into the cross-shaped jack of the adapter stud, and complete the series connection of the data monitoring unit and the front auxiliary installation support rod. Step 4: Orient the data monitoring unit towards the drill hole and send it into the hole. The front auxiliary installation support rod and the data monitoring unit are sent into the drill hole synchronously, and the rod locking mechanism at the rear end of the front auxiliary installation support rod is left outside the drill hole. Step Five: ① When the intermediate auxiliary installation rod is not needed, directly screw and connect the rear auxiliary installation rod and the front auxiliary installation rod in series, and at the same time adjust the rod locking mechanism to the locked state. The auxiliary installation unit is assembled, and then continue to send the data monitoring unit into the drill hole until the protective cap abuts against the bottom of the drill hole, and at the same time the annular handle remains outside the drill hole. ② When the intermediate auxiliary installation rod is needed, first screw and connect the intermediate auxiliary installation rod and the front auxiliary installation rod in series, then screw and connect the rear auxiliary installation rod and the intermediate auxiliary installation rod in series, and at the same time adjust the rod locking mechanism to the locked state. Then continue to send the data monitoring unit into the drill hole until the protective cap abuts against the bottom of the drill hole, and at the same time the annular handle remains outside the drill hole. Step Six: Hold the annular handle, apply axial pressure to the auxiliary installation unit and the data monitoring unit, and at the same time rotate the annular handle. At this time, the transfer stud will screw into the protective sleeve towards the bottom of the drill hole, thereby driving the diameter of the hole wall support assembly to increase until the hole wall support plate abuts against the hole wall of the drill hole, and the data monitoring unit is fixedly installed in the drill hole. Step Seven: Apply an axial pulling force to the auxiliary installation unit through the annular handle to move the cross-shaped plug on the front auxiliary installation rod out of the cross-shaped socket of the transfer stud, complete the separation of the auxiliary installation unit and the data monitoring unit, then remove the auxiliary installation unit from the drill hole, and at the same time the cable guiding ring buckle is separated from the cable. After that, seal the orifice of the drill hole. Step Eight: Fix and connect the protective box of the intelligent early warning and prediction unit to the surrounding rock surface through the bolt adapter, then remove the sealed wire threading mechanism from the wire threading hole at the bottom of the protective box, then pass the cable left outside the drill hole through the cable sealed wire threading channel of the sealed wire threading mechanism, then connect the computer in the cable protection box, and then reinstall the sealed wire threading mechanism back to the wire threading hole. At this time, the cable sealed wire threading is completed. Step Nine: Press the power switch. After the computer starts and enters the working state, install the sealed cover on the protective box to complete the enclosure of the protective box, and the installation work is completed.

[0018] Advantages of the present invention: The mine underground stress and microseismic collaborative intelligent monitoring device and installation method of the present invention achieve a high degree of integration of stress sensing elements and microseismic sensing elements. Stress monitoring data and microseismic monitoring data can be synchronously collected and processed, reducing data transmission delay, improving monitoring efficiency, and realizing dynamic real-time early warning and prediction of deep geological disasters in mines. When the microseismic sensing element monitors an abnormal vibration event, it can synchronously trigger the stress sensing element to enter the high-frequency sampling mode to improve the spatio-temporal resolution of the monitoring data, optimize the data acquisition strategy, and meet the construction of a long-term early warning and prediction system for geological disasters through the combination of historical data and real-time monitoring data based on a deep learning model, providing technical support for improving the early warning ability and prediction accuracy. In terms of structural design, a modular design route is adopted, optimizing the installation, disassembly, and recovery processes of the device, reducing the installation, disassembly, recovery difficulty, and operation and maintenance cost of the device. The data monitoring unit after installation can operate stably for a long time, effectively ensuring the effectiveness and reliability of data monitoring, and thus ensuring the accuracy and reliability of mine safety early warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the installation effect diagram of a mine underground stress and microseismic collaborative intelligent monitoring device of the present invention; Figure 2 is the overall structural schematic diagram (viewpoint one) of the data monitoring unit of the present invention; Figure 3 is the overall structural schematic diagram (viewpoint two) of the data monitoring unit of the present invention; Figure 4 is the partial cross-sectional view of the data monitoring mechanism of the data monitoring unit of the present invention; Figure 5 is the partial cross-sectional view of the combination of the limit rear ring plate and the guide rear slide rail in the hole wall support and fixing mechanism of the data monitoring unit of the present invention; Figure 6 is the overall structural schematic diagram of the front auxiliary installation rod of the auxiliary installation unit of the present invention; Figure 7 is the overall structural schematic diagram of the middle auxiliary installation rod of the auxiliary installation unit of the present invention; Figure 8 is the overall structural schematic diagram of the rear auxiliary installation rod of the auxiliary installation unit of the present invention; Figure 9 is the overall structural schematic diagram of the rod locking mechanism of the auxiliary installation unit of the present invention; Figure 10 is the overall structural schematic diagram (viewpoint one) of the intelligent early warning and prediction unit of the present invention; Figure 11 is the overall structural schematic diagram (viewpoint two) of the intelligent early warning and prediction unit of the present invention; Figure 12 Partial cross-sectional view of the sealing wire threading mechanism of the intelligent early warning and prediction unit of the present invention; In the figure, I - data monitoring unit, II - auxiliary installation unit, III - intelligent early warning and prediction unit, 1 - adapter stud, 2 - protective sleeve, 3 - sensing element encapsulation core column, 4 - protective head, 5 - core column guide sleeve, 6 - core column insertion hole, 7 - guide sleeve insertion ring groove, 8 - guide sleeve elastic limit buckle, 9 - force transmission support spoke, 10 - rear limit ring plate, 11 - front limit ring plate, 12 - rear guide slide rail, 13 - front guide slide rail, 14 - slide rail adapter rib, 15 - front support force transmission swing rod, 16 - rear support force transmission swing rod, 17 - hole wall support plate, 18 - support plate adapter rib, 19 - rear slide rail guide ring groove, 20 - front limit probe rod, 21 - support plate radial guiding chute, 22 - front auxiliary installation support rod, 23 - middle auxiliary installation support rod, 24 - rear auxiliary installation support rod, 25 - cross-shaped plug, 26 - cross-shaped socket, 27 - annular handle, 28 - cable guiding ring buckle, 29 - locking block, 30 - locking ring, 31 - handle, 32 - ear seat, 33 - transmission frame, 34 - transmission plate, 35 - transmission rod, 36 - thrust spring, 37 - transmission plate guiding chute, 38 - protective box body, 39 - sealing cover plate, 40 - warning light, 41 - warning horn, 42 - auxiliary handle, 43 - power switch, 44 - bolt adapter, 45 - surrounding rock, 46 - cable, 47 - inner double-headed external hexagon socket, 48 - middle double-headed external hexagon socket, 49 - outer plug nut, 50 - waterproof rubber, 51 - cable sealing through hole, 52 - drill hole. Specific embodiments

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] As Figures 1 to 12 shown, a collaborative intelligent monitoring device for stress and microseismic in underground mines includes a data monitoring unit I, an auxiliary installation unit II, and an intelligent early warning and prediction unit III; the data monitoring unit I is arranged at the bottom of the drill hole 52, and the data monitoring unit I is in plug-in fit with the auxiliary installation unit II; the intelligent early warning and prediction unit III is arranged on the surface of the surrounding rock 45 outside the drill hole 52, and the intelligent early warning and prediction unit III is communicatively connected to the data monitoring unit I through the cable 46.

[0022] The data monitoring unit I includes a data monitoring mechanism and a hole wall support and fixation mechanism, and the hole wall support and fixation mechanism is arranged outside the data monitoring mechanism.

[0023] The data monitoring mechanism includes an adapter stud 1, a protective sleeve 2, a sensing element encapsulation core column 3, a protective head 4, and an encapsulation core column guide sleeve 5; an external thread is provided on the outer surface of the front half of the column body of the adapter stud 1; an internal thread is provided on the inner surface of the rear half of the barrel of the protective sleeve 2, and the rear half of the barrel of the protective sleeve 2 is coaxially sleeved outside the front half of the column body of the adapter stud 1 and is in threaded connection and cooperation; the protective head 4 is fixedly arranged at the front end of the protective sleeve 2; an encapsulation core column insertion hole 6 is provided at the center of the front end of the adapter stud 1, the rear end of the sensing element encapsulation core column 3 is slidably inserted and matched with the encapsulation core column insertion hole 6, and the front end of the sensing element encapsulation core column 3 is fixedly connected to the protective head 4; a guide sleeve insertion ring groove 7 is provided at the orifice of the encapsulation core column insertion hole 6; the encapsulation core column guide sleeve 5 is coaxially sleeved outside the sensing element encapsulation core column 3, the rear end of the encapsulation core column guide sleeve 5 is inserted into the guide sleeve insertion ring groove 7, and a guide sleeve elastic limit buckle 8 is provided between the guide sleeve insertion ring groove 7 and the encapsulation core column guide sleeve 5; a micro-vibration sensing element, a stress sensing element, and an integrated data acquisition and transmission element are respectively installed axially inside the sensing element encapsulation core column 3; force transmission support spokes 9 are uniformly and fixedly arranged along the circumferential direction between the sensing element encapsulation core column 3 and the front half of the barrel of the protective sleeve 2.

[0024] Specifically, the adapter stud 1 can be screwed in and out relative to the protective sleeve 2 through a threaded structure. When a relative displacement occurs between the adapter stud 1 and the protective sleeve 2 in the axial direction, the sensing element encapsulation core column 3 can axially slip synchronously relative to the encapsulation core column guide sleeve 5 and the encapsulation core column insertion hole 6.

[0025] The hole wall support and fixation mechanism includes a limit rear ring plate 10, a limit front ring plate 11, and a hole wall support assembly; the limit rear ring plate 10 is coaxially and fixedly sleeved outside the adapter stud 1; the limit front ring plate 11 is coaxially and fixedly sleeved outside the protective head 4; the hole wall support assembly is arranged between the limit rear ring plate 10 and the limit front ring plate 11, and the number of the hole wall support assemblies is several, and several hole wall support assemblies are uniformly distributed along the circumferential direction of the protective sleeve 2.

[0026] Specifically, the limit rear ring plate 10 moves synchronously with the adapter stud 1, and the limit front ring plate 11 moves synchronously with the protective head 4 and the protective sleeve 2. When the adapter stud 1 is screwed in and out in the protective sleeve 2, the distance between the limit rear ring plate 10 and the limit front ring plate 11 will change synchronously, and thus the hole wall support assembly can be driven to move.

[0027] The hole wall support assembly includes a rear guide slide rail 12, a front guide slide rail 13, a slide rail transfer rib 14, a front support force transmission swing rod 15, a rear support force transmission swing rod 16, a hole wall support plate 17 and a support plate transfer rib 18; a rear slide rail guide ring groove 19 is provided on the front surface of the limit rear ring plate 10, the rear end of the rear guide slide rail 12 is located in the rear slide rail guide ring groove 19, the rear guide slide rail 12 only has a circumferential sliding freedom relative to the rear slide rail guide ring groove 19, and the lower surface of the rear guide slide rail 12 is in contact with the outer surface of the protective sleeve 2; the slide rail transfer rib 14 is fixedly arranged on the upper surface of the rear guide slide rail 12, and a front slide rail guide chute is provided on the rear guide slide rail 12 below the slide rail transfer rib 14; the rear end of the front guide slide rail 13 is inserted into the front slide rail guide chute, the front guide slide rail 13 only has a linear sliding freedom relative to the front slide rail guide chute, the front end of the front guide slide rail 13 is fixedly connected to the rear surface of the limit front ring plate 11, and the lower surface of the front guide slide rail 13 is in contact with the outer surface of the protective sleeve 2; the hole wall support plate 17 is located above the slide rail transfer rib 14; the support plate transfer rib 18 is fixedly arranged on the lower surface of the hole wall support plate 17; the lower end of the front support force transmission swing rod 15 is hinged to the front end of the slide rail transfer rib 14, and the upper end of the front support force transmission swing rod 15 is hinged to the front end of the support plate transfer rib 18; the lower end of the rear support force transmission swing rod 16 is hinged to the rear end of the slide rail transfer rib 14, and the upper end of the rear support force transmission swing rod 16 is hinged to the rear end of the support plate transfer rib 18; the slide rail transfer rib 14, the front support force transmission swing rod 15, the support plate transfer rib 18 and the rear support force transmission swing rod 16 form a parallelogram structure; a limit front probe rod 20 is fixedly installed on the lower surface of the front end of the hole wall support plate 17; a support plate radial guide chute 21 is provided on the limit front ring plate 11, the limit front probe rod 20 is located in the support plate radial guide chute 21, and the limit front probe rod 20 only has a linear sliding freedom relative to the support plate radial guide chute 21.

[0028] Specifically, when the distance between the limit rear ring plate 10 and the limit front ring plate 11 changes, the guide rear slide rail 12 can axially move relative to the guide front slide rail 13. The slide rail transfer rib 14 will drive the lower hinge points of the front support force transmission swing rod 15 and the rear support force transmission swing rod 16 to move synchronously. Since the hole wall support plate 17 can only move in the radial direction under the restriction of the limit front probe rod 20 and the support plate radial guiding chute 21, the swinging movements of the front support force transmission swing rod 15 and the rear support force transmission swing rod 16 will ultimately drive the hole wall support plate 17 to move radially up and down. When the surrounding rock 45 deforms, the generated stress will be sequentially transmitted to the stress sensing element through the hole wall support plate 17, the support plate transfer rib 18, the front support force transmission swing rod 15, the rear support force transmission swing rod 16, the slide rail transfer rib 14, the guide rear slide rail 12, the guide front slide rail 13, the protective sleeve 2, the force transmission support spoke 9 and the sensing element encapsulation core column 3, so as to realize the real-time acquisition of stress data. The vibration generated by the surrounding rock 45 during the stress release process is directly transmitted to the microseismic sensing element by the protective head 4 and the sensing element encapsulation core column 3, so as to realize the real-time acquisition of microseismic data.

[0029] The auxiliary installation unit II includes a front auxiliary installation support rod 22, an intermediate auxiliary installation support rod 23 and a rear auxiliary installation support rod 24; a cross-shaped plug 25 is fixedly arranged at the front end of the front auxiliary installation support rod 22, and an external thread is arranged on the outer surface of the rod body at the rear end of the front auxiliary installation support rod 22; a cross-shaped socket 26 is arranged at the center of the rear end of the transfer stud 1, and the cross-shaped socket 26 is in plug-in fit with the cross-shaped plug 25; an internal thread is arranged on the inner surface of the rod body at the front end of the intermediate auxiliary installation support rod 23, and an external thread is arranged on the outer surface of the rod body at the rear end of the intermediate auxiliary installation support rod 23; an internal thread is arranged on the inner surface of the rod body at the front end of the rear auxiliary installation support rod 24, and an annular handle 27 is fixedly installed on the outer side of the rod body at the rear end of the rear auxiliary installation support rod 24, and an anti-slip rubber sleeve is installed on the annular handle 27; the number of the intermediate auxiliary installation support rods 23 is several, and several intermediate auxiliary installation support rods 23 are connected in series by threads; when the front auxiliary installation support rod 22 and the rear auxiliary installation support rod 24 are connected in series by threads, the freedom degree between the rods at the connection of the front auxiliary installation support rod 22 and the rear auxiliary installation support rod 24 is locked by a rod locking mechanism; when the front auxiliary installation support rod 22, the intermediate auxiliary installation support rod 23 and the rear auxiliary installation support rod 24 are connected in series by threads, the freedom degrees between the rods at the connections of the front auxiliary installation support rod 22 and the intermediate auxiliary installation support rod 23, between adjacent intermediate auxiliary installation support rods 23, and between the intermediate auxiliary installation support rod 23 and the rear auxiliary installation support rod 24 are all locked by the rod locking mechanism; cable guiding ring buckles 28 are fixedly arranged on the outer surfaces of the rod bodies of the front auxiliary installation support rod 22, the intermediate auxiliary installation support rod 23 and the rear auxiliary installation support rod 24.

[0030] Specifically, the length of the auxiliary installation unit II is determined by the number of series-connected intermediate auxiliary installation struts 23. When the number of intermediate auxiliary installation struts 23 is zero, the length of the auxiliary installation unit II is the shortest, which is the sum of the lengths of the front auxiliary installation strut 22 and the rear auxiliary installation strut 24. On this basis, the more the number of series-connected intermediate auxiliary installation struts 23, the longer the length of the auxiliary installation unit II. After two adjacent auxiliary installation struts are screwed together, in order to prevent the thread at the connection from loosening when the auxiliary installation unit II is subsequently screwed, it is necessary to lock the two adjacent auxiliary installation struts at the connection through the strut locking mechanism, so as to ensure that the torque when the auxiliary installation unit II is subsequently screwed can be smoothly transmitted.

[0031] The strut locking mechanism includes a locking block 29, a locking ring 30, a handle 31, an ear seat 32, a transmission frame 33, a transmission plate 34, a transmission rod 35 and a thrust spring 36; the locking block 29 and the ear seat 32 are respectively fixedly arranged on the outer surfaces of the struts on both sides of the connection of the auxiliary installation struts; the rear end of the handle 31 is hinged on the ear seat 32, and the front end of the handle 31 is a free end; the transmission plate 34 is located inside the transmission frame 33, and the transmission plate 34 divides the internal space of the transmission frame 33 into a front chamber and a rear chamber. A transmission plate guiding chute 37 is arranged on the transmission frame 33, and the transmission plate 34 only has a linear sliding freedom degree relative to the transmission plate guiding chute 37; the ear seat 32 is located in the rear chamber of the transmission frame 33, and the rear end of the transmission frame 33 is hinged to the middle and rear part of the handle 31; one end of the transmission rod 35 is fixedly connected to the locking ring 30, and the other end of the transmission rod 35 penetrates into the front chamber of the transmission frame 33 and is fixedly connected to the transmission plate 34; the thrust spring 36 is located in the front chamber of the transmission frame 33 and is sleeved outside the transmission rod 35, and the thrust spring 36 abuts between the transmission plate 34 and the transmission frame 33; the locking ring 30 and the locking block 29 are in clamping fit.

[0032] Specifically, after the adjacent two auxiliary installation support rods are screwed together, first grasp the handle 31, and then turn the handle 31 upward around the ear seat 32, so that the handle 31 changes from a horizontal state to an upright state, thereby driving the transmission frame 33 closer to the locking block 29. Subsequently, rotate the transmission frame 33 around the hinge point between the transmission frame 33 and the handle 31, so that the locking ring 30 is sleeved on the locking block 29. Then turn the handle 31 downward around the ear seat 32, so that the handle 31 returns from the upright state to the horizontal state, driving the transmission frame 33 away from the locking block 29. At this time, since the locking ring 30 is hooked by the locking block 29, the positions of the transmission rod 35 and the transmission plate 34 relative to the locking block 29 cannot be changed either. Then relative movement occurs between the transmission plate 34 and the transmission frame 33, thereby compressing the thrust spring 36. Finally, under the action of the thrust spring 36, the locking ring 30 can be tightly hooked on the locking block 29, so that the support rod locking mechanism is in a locked state, thereby ensuring that reliable torque transmission can occur between the adjacent two auxiliary installation support rods.

[0033] The intelligent early warning and prediction unit III adopts a box structure, including a protective box body 38, a sealing cover plate 39, a computer, an early warning light 40, an early warning horn 41, an auxiliary handle 42, a power switch 43 and a sealing wire passing mechanism; the computer is installed inside the protective box body 38, the sealing cover plate 39 is fixedly installed on the protective box body 38 by screws, and the protective box body 38 is fixedly installed on the surface of the surrounding rock 45 through a bolt adapter 44; auxiliary handles 42 are arranged on both the top and the side of the protective box body 38; the early warning light 40 and the early warning horn 41 are both fixedly arranged on the top of the protective box body 38; the power switch 43 is arranged at the bottom of the protective box body 38, and a plurality of wire passing holes are also arranged at the bottom of the protective box body 38. A sealing wire passing mechanism is arranged in each wire passing hole, and the cable 46 passes through the sealing wire passing mechanism and is connected to the computer.

[0034] Specifically, the sealing performance between the cable 46 and the wire passing hole at the bottom of the protective box body 38 is ensured by the sealing wire passing mechanism, which can prevent water penetration, dust, etc. from entering the inside of the protective box body 38 through the wire passing hole. For the data generated by the microseismic sensor element and the stress sensor element inside the sensor element encapsulation core column 3, it can be directly transmitted by the integrated data acquisition and transmission element to the computer inside the protective box body 38 through the cable 46. When the microseismic sensor element monitors an abnormal vibration event, the stress sensor element can be synchronously triggered to enter the high-frequency sampling mode, improving the spatio-temporal resolution of the monitoring data. Through the combination of historical data and real-time monitoring data, and based on the deep learning model, the construction of the long-term early warning and prediction system for geological disasters can be satisfied. At the same time, when an abnormal vibration event occurs, the computer can automatically make a judgment according to the monitored data and emit an audible and visual alarm in real time through the early warning light 40 and the early warning horn 41, providing a reliable early warning for personnel to evacuate the dangerous area in time.

[0035] The sealing wire threading mechanism includes an inner double-headed external hexagonal screw sleeve 47, an intermediate double-headed external hexagonal screw sleeve 48 and an external plug nut 49; the middle part of the inner double-headed external hexagonal screw sleeve 47 is an external hexagonal cross-section segment, and external threads are provided on the outer surfaces of the screw sleeves on both sides of the external hexagonal cross-section segment; the middle part of the intermediate double-headed external hexagonal screw sleeve 48 is an external hexagonal cross-section segment, and internal threads are provided on the inner surfaces of the screw sleeves on both sides of the external hexagonal cross-section segment; the external plug nut 49 is in threaded connection and cooperation with the intermediate double-headed external hexagonal screw sleeve 48, the intermediate double-headed external hexagonal screw sleeve 48 is in threaded connection and cooperation with the inner double-headed external hexagonal screw sleeve 47, and the inner double-headed external hexagonal screw sleeve 47 is in threaded connection and cooperation with the wire threading hole at the bottom of the protective box body 38; waterproof rubber 50 is filled inside the inner double-headed external hexagonal screw sleeve 47, the intermediate double-headed external hexagonal screw sleeve 48 and the external plug nut 49, and a cable sealing and passing channel 51 is arranged at the center of the waterproof rubber 50.

[0036] An installation method of a mine underground stress and microseismic collaborative intelligent monitoring device adopts the mine underground stress and microseismic collaborative intelligent monitoring device as described above, and includes the following steps: Step 1: Use a drill to complete the processing of a drill hole 52 in the surrounding rock 45. The diameter of the drill hole 52 is larger than the minimum adjustable diameter of the hole wall support assembly and smaller than the maximum adjustable diameter of the hole wall support assembly. The depth of the drill hole 52 is larger than the sum of the lengths of the data monitoring unit I and the front auxiliary installation support rod 22; Step 2: Determine the length of the auxiliary installation unit II according to the depth of the drill hole 52, and then select the required number of intermediate auxiliary installation support rods 23; Step 3: Adjust the hole wall support assembly to the minimum adjustable diameter state, then pick up the front auxiliary installation support rod 22, insert the cross-shaped plug 25 into the cross-shaped jack 26 of the adapter stud 1 to complete the series connection of the data monitoring unit I and the front auxiliary installation support rod 22; Step 4: Orient the data monitoring unit I towards the drill hole 52 and send it into the hole. The front auxiliary installation support rod 22 and the data monitoring unit I are sent into the drill hole 52 synchronously, and the rod locking mechanism at the rear end of the front auxiliary installation support rod 22 is left outside the drill hole 52; Step Five: ① When the intermediate auxiliary installation rod 23 is not needed, directly screw the rear auxiliary installation rod 24 and the front auxiliary installation rod 22 in series, and at the same time adjust the rod locking mechanism to the locked state. The auxiliary installation unit II is assembled. Then continue to send the data monitoring unit I into the drilling hole 52 until the protective head 4 abuts against the bottom of the drilling hole 52, and at the same time the annular handle 27 remains outside the drilling hole 52. ② When the intermediate auxiliary installation rod 23 is needed, first screw the intermediate auxiliary installation rod 23 and the front auxiliary installation rod 22 in series, then screw the rear auxiliary installation rod 24 and the intermediate auxiliary installation rod 23 in series, and at the same time adjust the rod locking mechanism to the locked state. Then continue to send the data monitoring unit I into the drilling hole 52 until the protective head 4 abuts against the bottom of the drilling hole 52, and at the same time the annular handle 27 remains outside the drilling hole 52. Step Six: Hold the annular handle 27, apply axial pressure to the auxiliary installation unit II and the data monitoring unit I, and at the same time rotate the annular handle 27. At this time, the transfer stud 1 will screw into the protective sleeve 2 towards the bottom of the drilling hole 52, thereby driving the diameter of the hole wall support assembly to increase until the hole wall support plate 17 abuts against the hole wall of the drilling hole 52, and the data monitoring unit I is fixedly installed in the drilling hole 52. Step Seven: Apply an axial pulling force to the auxiliary installation unit II through the annular handle 27 to move the cross-shaped plug 25 on the front auxiliary installation rod 22 out of the cross-shaped socket 26 of the transfer stud 1, completing the separation of the auxiliary installation unit II and the data monitoring unit I. Then remove the auxiliary installation unit II from the drilling hole 52. At the same time, the cable guiding ring buckle 28 is disengaged from the cable 46. After that, seal the orifice of the drilling hole 52. Step Eight: Fix the protective housing 38 of the intelligent early warning and prediction unit III to the surface of the surrounding rock 45 through the bolt adapter 44. Then remove the sealed wire threading mechanism from the wire threading hole at the bottom of the protective housing 38. Then pass the cable 46 remaining outside the drilling hole 52 through the cable sealed wire threading hole 51 of the sealed wire threading mechanism. After that, connect the cable 46 to the computer inside the protective housing 38. Then reinstall the sealed wire threading mechanism back to the wire threading hole. At this time, the cable 46 is sealed and wire threaded. Step Nine: Press the power switch 43. After the computer starts and enters the working state, install the sealed cover 39 on the protective housing 38 to complete the enclosure of the protective housing 38, and the installation work is completed.

[0037] The solutions in the embodiments are not intended to limit the protection scope of the present invention. Any equivalent implementation or modification without departing from the present invention is included in the protection scope of the present invention.

Claims

1. A mine underground stress and microseismic coordinated intelligent monitoring device, characterized by: It comprises a data monitoring unit, an auxiliary installation unit and an intelligent early warning prediction unit; the data monitoring unit is arranged at the bottom of the borehole, and the data monitoring unit is plugged and matched with the auxiliary installation unit; the intelligent early warning prediction unit is arranged on the external surrounding rock surface of the borehole, and the intelligent early warning prediction unit is communicatively connected with the data monitoring unit through a cable; the data monitoring unit comprises a data monitoring mechanism and a hole wall support and fixing mechanism, and the hole wall support and fixing mechanism is arranged on the outside of the data monitoring mechanism; the data monitoring mechanism comprises a transfer stud, a protective sleeve, a sensor element encapsulation core column, a protective head and an encapsulation core column guide sleeve; the outer surface of the front half of the cylinder of the transfer stud is provided with an external thread; the inner surface of the rear half of the cylinder of the protective sleeve is provided with an internal thread, and the rear half of the cylinder of the protective sleeve is coaxially sleeved on the outside of the front half of the cylinder of the transfer stud and the thread is connected The protective head is fixedly arranged at the front end of the protective sleeve; a packaging core column insertion hole is arranged at the center of the front end of the adapter stud, and the rear end of the sensor element packaging core column is slidingly plugged into the packaging core column insertion hole, and the front end of the sensor element packaging core column is fixedly connected to the protective head; a guide sleeve insertion ring groove is arranged at the orifice of the packaging core column insertion hole; the packaging core column guide sleeve is coaxially sleeved on the outside of the sensor element packaging core column, and the rear end of the packaging core column guide sleeve is inserted in the guide sleeve insertion ring groove, and a guide sleeve elastic limiting buckle is arranged between the guide sleeve insertion ring groove and the packaging core column guide sleeve; micro-seismic sensor elements, stress sensor elements and integrated data acquisition and transmission elements are respectively installed axially inside the sensor element packaging core column; force transmission support spokes are evenly fixed along the circumferential direction between the sensor element packaging core column and the front half of the cylinder of the protective sleeve.

2. The intelligent monitoring device for coordinated stress and microseismic monitoring in underground mines according to claim 1, characterized in that: The hole wall support and fixing mechanism includes a limiting rear ring plate, a limiting front ring plate and a hole wall support assembly; the limiting rear ring plate is coaxially fixedly sleeved on the outside of the adapter stud; the limiting front ring plate is coaxially fixedly sleeved on the outside of the protective head; the hole wall support assembly is arranged between the limiting rear ring plate and the limiting front ring plate, and there are a plurality of hole wall support assemblies, which are evenly distributed along the circumferential direction of the protective sleeve.

3. The device for intelligently monitoring underground mine stress and microseismic coordination according to claim 2 is characterized in that: The hole wall support assembly comprises a guiding rear slide rail, a guiding front slide rail, a slide rail transition rib, a front support force transmission swing rod, a rear support force transmission swing rod, a hole wall support plate and a support plate transition rib; a rear slide rail guide ring groove is arranged on the front surface of the limiting rear ring plate, and the rear end of the guiding rear slide rail is located in the rear slide rail guide ring groove, and the guiding rear slide rail has only annular sliding freedom relative to the rear slide rail guide ring groove, and the lower surface of the guiding rear slide rail contacts the outer surface of the protective sleeve; the slide rail transition rib is fixedly arranged on the upper surface of the guiding rear slide rail, and a front slide rail guide groove is arranged on the guiding rear slide rail below the slide rail transition rib; the rear end of the guiding front slide rail is inserted in the front slide rail guide groove, and the guiding front slide rail has only linear sliding freedom relative to the front slide rail guide groove, and the front end of the guiding front slide rail is fixedly connected to the rear surface of the limiting front ring plate, and the lower surface of the guiding front slide rail contacts the outer surface of the protective sleeve The outer surface of the protective sleeve is in contact with the outer surface of the sleeve; the hole wall support plate is located above the slide rail transfer rib; the support plate transfer rib is fixedly arranged on the lower surface of the hole wall support plate; the lower end of the front support force transmission swing rod is hinged at the front end of the slide rail transfer rib, and the upper end of the front support force transmission swing rod is hinged at the front end of the support plate transfer rib; the lower end of the rear support force transmission swing rod is hinged at the rear end of the slide rail transfer rib, and the upper end of the rear support force transmission swing rod is hinged at the rear end of the support plate transfer rib; the slide rail transfer rib, the front support force transmission swing rod, the support plate transfer rib and the rear support force transmission swing rod constitute a parallelogram structure; a limited front probe rod is fixedly installed on the lower surface of the front end of the hole wall support plate; a support plate radial guide groove is arranged on the limit front ring plate, and the limit front probe rod is located in the support plate radial guide groove, and the limit front probe rod has only linear sliding freedom relative to the support plate radial guide groove.

4. The device for intelligently monitoring underground mine stress and microseismic coordination according to claim 3 is characterized in that: The auxiliary mounting unit comprises a front auxiliary mounting support rod, an intermediate auxiliary mounting support rod and a rear auxiliary mounting support rod; a cross-shaped plug is fixedly arranged at the front end of the front auxiliary mounting support rod, and an external thread is arranged on the outer surface of the rod body at the rear end of the front auxiliary mounting support rod; a cross-shaped jack is arranged at the rear end center of the adapter stud, and the cross-shaped jack is plugged and matched with the cross-shaped plug; an internal thread is arranged on the inner surface of the rod body at the front end of the intermediate auxiliary mounting support rod, and an external thread is arranged on the outer surface of the rod body at the rear end of the intermediate auxiliary mounting support rod; an internal thread is arranged on the inner surface of the rod body at the front end of the rear auxiliary mounting support rod, and an annular handle is fixedly installed on the outer side of the rod body at the rear end of the rear auxiliary mounting support rod, and an anti-slip rubber sleeve is installed on the annular handle; the number of intermediate auxiliary mounting support rods is as follows: A plurality of intermediate auxiliary mounting support rods are connected in series by threads; when the front auxiliary mounting support rod and the rear auxiliary mounting support rod are connected in series by threads, the connection between the front auxiliary mounting support rod and the rear auxiliary mounting support rod is locked by a support rod locking mechanism; when the front auxiliary mounting support rod, the intermediate auxiliary mounting support rod and the rear auxiliary mounting support rod are connected in series by threads, the connection between the front auxiliary mounting support rod and the intermediate auxiliary mounting support rod, the connection between adjacent intermediate auxiliary mounting support rods, and the connection between the intermediate auxiliary mounting support rod and the rear auxiliary mounting support rod are also all locked by a support rod locking mechanism; cable guide buckles are fixedly provided on the outer surfaces of the rod bodies of the front auxiliary mounting support rod, the intermediate auxiliary mounting support rod and the rear auxiliary mounting support rod.

5. The device for intelligently monitoring underground mine stress and microseismic coordination according to claim 4 is characterized in that: The support rod locking mechanism comprises a locking block, a locking snap ring, a handle, an ear seat, a transmission frame, a transmission plate, a transmission rod and a thrust spring; the locking block and the ear seat are respectively fixedly arranged on the outer surfaces of the support rod on both sides of the connection point of the auxiliary mounting support rod; the rear end of the handle is hinged on the ear seat, and the front end of the handle is a free end; the transmission plate is located inside the transmission frame, and the transmission plate divides the internal space of the transmission frame into a front chamber and a rear chamber, and a transmission plate guide slot is provided on the transmission frame, and the transmission plate has only a linear sliding degree of freedom relative to the transmission plate guide slot; the ear seat is located in the rear chamber of the transmission frame, and the rear end of the transmission frame is hinged to the middle and rear part of the handle; one end of the transmission rod is fixedly connected to the locking snap ring, and the other end of the transmission rod penetrates into the front chamber of the transmission frame and is fixedly connected to the transmission plate; the thrust spring is located in the front chamber of the transmission frame and is sleeved on the outside of the transmission rod, and the thrust spring is supported between the transmission plate and the transmission frame; the locking snap ring is engaged with the locking block.

6. The device for intelligently monitoring underground mine stress and microseismic coordination according to claim 4 is characterized in that: The intelligent early warning and prediction unit adopts a box-type structure, including a protective box, a sealing cover, a computer, a warning light, a warning horn, an auxiliary handle, a power switch and a sealed wire threading mechanism; the computer is built-in and installed inside the protective box, the sealing cover is fixedly installed on the protective box by screws, and the protective box is fixedly installed on the surrounding rock surface by a bolt adapter; auxiliary handles are provided on the top and sides of the protective box; the warning light and the warning horn are fixedly provided on the top of the protective box; the power switch is provided at the bottom of the protective box, and a plurality of wire threading holes are also provided at the bottom of the protective box, each of which is provided with a sealed wire threading mechanism, and the cable passes through the sealed wire threading mechanism to be connected to the computer.

7. The intelligent monitoring device for coordinated stress and microseismic monitoring in underground mines according to claim 6, characterized in that: The sealing threading mechanism includes an inner double-headed outer hexagonal screw sleeve, an intermediate double-headed outer hexagonal screw sleeve and an external plug nut; the middle part of the inner double-headed outer hexagonal screw sleeve is an outer hexagonal cross-section section, and the outer surfaces of the screw sleeves on both sides of the outer hexagonal cross-section section are provided with external threads; the middle part of the intermediate double-headed outer hexagonal screw sleeve is an outer hexagonal cross-section section, and the inner surfaces of the screw sleeves on both sides of the outer hexagonal cross-section section are provided with internal threads; the external plug nut and the intermediate double-headed outer hexagonal screw sleeve are threadedly connected and matched, the intermediate double-headed outer hexagonal screw sleeve and the inner double-headed outer hexagonal screw sleeve are threadedly connected and matched, and the inner double-headed outer hexagonal screw sleeve and the threading hole at the bottom of the protective box are threadedly connected and matched; the interiors of the inner double-headed outer hexagonal screw sleeve, the intermediate double-headed outer hexagonal screw sleeve and the external plug nut are all filled with waterproof rubber, and a cable sealing passage channel is provided in the center of the waterproof rubber.

8. A method for installing a mine underground stress and microseismic coordinated intelligent monitoring device, using the mine underground stress and microseismic coordinated intelligent monitoring device according to claim 7, characterized in that: The steps include: Step 1: Use a drilling rig to complete drilling on the surrounding rock, the diameter of the drilled hole is larger than the minimum adjustable diameter of the hole wall support assembly and smaller than the maximum adjustable diameter of the hole wall support assembly, and the depth of the drilled hole is larger than the sum of the lengths of the data monitoring unit and the front auxiliary mounting support rod; Step 2: Determine the length of the auxiliary installation unit according to the depth of the drilled hole, and then select the required number of intermediate auxiliary installation support rods; Step 3: Adjust the hole wall support assembly to the minimum adjustable diameter state, then pick up the front auxiliary mounting support rod, insert the cross-shaped plug into the cross-shaped socket of the adapter stud, and complete the series connection between the data monitoring unit and the front auxiliary mounting support rod; Step 4: Place the data monitoring unit toward the borehole and insert it into the hole, and simultaneously insert the front auxiliary mounting support rod and the data monitoring unit into the borehole, leaving the support rod locking mechanism at the rear end of the front auxiliary mounting support rod outside the borehole; Step 5: ①, when the middle auxiliary mounting support rod is not needed, the rear auxiliary mounting support rod is directly screwed in series with the front auxiliary mounting support rod, and the support rod locking mechanism is adjusted to the locking state, the auxiliary mounting unit is assembled, and then the data monitoring unit is continuously introduced into the borehole until the protective head is against the bottom of the borehole, and the annular handle is left outside the borehole; ②, when the middle auxiliary mounting support rod is needed, the middle auxiliary mounting support rod is first screwed in series with the front auxiliary mounting support rod, and then the rear auxiliary mounting support rod is screwed in series with the middle auxiliary mounting support rod, and the support rod locking mechanism is adjusted to the locking state, and then the data monitoring unit is continuously introduced into the borehole until the protective head is against the bottom of the borehole, and the annular handle is left outside the borehole; Step 6: Hold the annular handle, apply axial pressure to the auxiliary installation unit and the data monitoring unit, and twist the annular handle at the same time. At this time, the adapter stud will be screwed into the protective sleeve toward the bottom of the drilled hole, thereby increasing the diameter of the hole wall support assembly until the hole wall support plate is supported on the hole wall of the drilled hole, and the data monitoring unit is fixedly installed in the drilled hole; Step 7: Apply axial pulling force to the auxiliary installation unit through the ring handle to remove the cross-shaped plug on the front auxiliary installation support rod from the cross-shaped socket of the adapter stud, completing the separation of the auxiliary installation unit and the data monitoring unit, and then remove the auxiliary installation unit from the drilled hole, while the cable guide buckle is separated from the cable, and then the hole of the drilled hole is closed; Step 8: Use a bolt adapter to fix the protection box of the intelligent early warning prediction unit to the surrounding rock surface, then remove the sealing threading mechanism from the threading hole at the bottom of the protection box, and then pass the cable left outside the drill hole through the cable sealing passage of the sealing threading mechanism, then connect the computer in the cable protection box, and then reinstall the sealing threading mechanism back to the threading hole. At this time, the cable sealing threading is completed; Step 9: Press the power switch, wait for the computer to start up and enter the working state, then install the sealing cover onto the protective box to complete the sealing of the protective box, and the installation work is completed.

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