An intelligent monitoring device for coordinated stress and microseismic monitoring in underground mines and its installation method

Abstract

A device and installation method for collaborative intelligent monitoring of stress and microseismicity in underground mines belongs to the technical field of mine surrounding rock stability monitoring and geological disaster early warning. The device includes 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 plugs into the auxiliary installation unit. The intelligent early warning and prediction unit is arranged on the surface of the surrounding rock outside the borehole and is communicatively connected to the data monitoring unit via a cable. The present invention integrates stress and microseismic sensing elements and enables synchronous acquisition and processing of monitoring data, reducing data transmission delays, improving monitoring efficiency, and achieving dynamic real-time early warning and prediction of geological disasters. When the microseismic sensing element detects an abnormal vibration event, it can synchronously trigger the stress sensing element to enter a high-frequency sampling mode, thereby improving the spatiotemporal resolution of the monitoring data. By combining historical data with real-time monitoring data, it can meet the construction of a long-term early warning and prediction system for geological disasters.

Description

Technical Field

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

[0002] As shallow mining resources become increasingly depleted and mining depths continue to increase, deep mines face increasingly severe geological conditions, including complex mechanical environments such as high stress, high water pressure, high ground temperature, and mining disturbances. In this environment, the stress state of the surrounding rock is extremely complex, making disasters such as roof collapse, goaf collapse, and water inrush extremely prone to occur, posing a serious threat to the safety of personnel and equipment. Therefore, in order to ensure safe mine production, accurate monitoring and effective early warning of geological hazards in deep mines are essential. Currently, microseismic monitoring technology and strain gauge monitoring technology are the two most commonly used methods for monitoring geological hazards in mines.

[0003] Microseismic monitoring technology is a non-destructive testing method based on seismological principles, primarily used to monitor microfracture activity within rock masses. When surrounding rock fractures or deforms under stress, it releases microseismic fluctuation signals. Microseismic sensors deployed in mines capture key parameters such as trigger time, source location, magnitude, and energy release during the rock fracture process. This allows for quantitative characterization of the spatiotemporal evolution of surrounding rock fractures, assessment of rock damage and failure modes, and determination of the development of fissures within the rock mass and the risk of water inrush, enabling early identification of geological hazards such as rockbursts and caving.

[0004] Stress monitoring technology is mainly used to measure the stress state inside the surrounding rock and its changes over time, reflecting the stress characteristics of the rock mass and the stress evolution process. Its core principle is to use sensing equipment 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 assess the stress concentration areas 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 support design, and prevent sudden rock bursts, roof collapse and other disasters. During the mining process, the reasonable layout of stress gauges can effectively evaluate the stress adjustment mechanism of the tunnel surrounding rock, identify high-altitude stress concentration areas, and provide technical support for the optimization and adjustment of mining plans, thereby reducing the probability of mine dynamic disasters and improving mine safety.

[0005] However, microseismic monitoring and stress monitoring are usually carried out independently and play their own roles, failing to achieve coordinated monitoring. As a result, they have the following limitations:

[0006] ① Microseismic monitoring technology mainly relies on the occurrence of rock fracture events. That is, microseismic sensors can only detect corresponding signals after a certain degree of damage or fracture occurs inside the rock mass. This makes it difficult to fully reflect processes such as rock stress accumulation and damage evolution. In some areas where no obvious microseismic events have occurred, the monitoring results have a certain lag, which affects the ability to provide early warning of disasters.

[0007] ②. Strain gauge monitoring usually relies on local measurements. Due to the limitations of the sensor installation location and point measurement characteristics, it is difficult to fully 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 a certain degree of uncertainty in the data.

[0008] In summary, while microseismic monitoring can capture rock fracture signals, it can't provide information about the stress accumulation process before a fracture occurs. Stress monitoring can reflect the stress conditions on a rock mass, but it can't directly reveal the state of rock damage. Because geological disasters are often the result of multiple factors, including stress accumulation, rock mass damage, and crack expansion, a single monitoring method has limited early warning capabilities before a disaster occurs. Microseismic monitoring alone can't promptly detect hidden dangers during the low-stress accumulation phase, and stress monitoring alone can't identify sudden dynamic disasters. Because the data from these two monitoring methods are typically stored and analyzed independently, it's difficult to form a complete surrounding rock stability assessment system, which impacts the accuracy and reliability of mine safety warnings. Summary of the Invention

[0009] In response to the problems existing in the prior art, the present invention provides an intelligent monitoring device and installation method for coordinated stress and microseismic monitoring in underground mines. This device achieves a high degree of integration between stress sensing elements and microseismic sensing elements, allowing for synchronous acquisition and processing of stress and microseismic monitoring data, reducing data transmission delays and improving monitoring efficiency. This allows for dynamic, real-time early warning and prediction of deep geological hazards in mines. When the microseismic sensing element detects an abnormal vibration event, it can simultaneously trigger the stress sensing element to enter a high-frequency sampling mode, thereby improving the spatiotemporal resolution of the monitoring data and optimizing the data acquisition strategy. By combining historical data with real-time monitoring data and then based on a deep learning model, this device can meet the requirements for the construction of a long-term early warning and prediction system for geological hazards, providing technical support for improving early warning capabilities and prediction accuracy. In terms of structural design, a modular design approach is adopted to optimize the installation, disassembly, and recovery processes of the device, reducing the difficulty of installation, disassembly, and recovery, as well as the operation and maintenance costs. The installed data monitoring unit can achieve long-term stable operation, effectively ensuring the effectiveness and reliability of data monitoring, and thus ensuring the accuracy and reliability of mine safety early warnings.

[0010] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a mine underground stress and microseismic collaborative intelligent monitoring device, including 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 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 communicated with the data monitoring unit through a cable.

[0011] The data monitoring unit includes 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.

[0012] The data monitoring mechanism includes a transfer stud, a protective sleeve, a sensor element package core column, a protective head and a package 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 package core column insertion hole is provided at the center of the front end of the transfer stud, and the rear end of the sensor element package core column is slidably plugged into the package core column insertion hole, and the front end of the sensor element package core column is inserted into the package core column insertion hole. It is fixedly connected to the protective head; a guide sleeve insertion ring groove is provided 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 provided 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.

[0013] 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 several hole wall support assemblies, and the several hole wall support assemblies are evenly distributed along the circumferential direction of the protective sleeve.

[0014] The rear end of the guide rail is fixedly mounted on the front of the driving member, and the rear end of the guide rail is fixedly mounted on the front of the driving member, and the rear end of the guide rail is fixedly mounted on the front of the driving member. The outer surface of the protective sleeve is in contact with the outer surface of the protective 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 rocker arm is hinged to the front end of the slide rail transfer rib, and the upper end of the front support force transmission rocker arm is hinged to the front end of the support plate transfer rib; the lower end of the rear support force transmission rocker arm is hinged to the rear end of the slide rail transfer rib, the upper end of the rear support force transmission rocker arm is hinged to the rear end of the support plate transfer rib; the slide rail transfer rib, the front support force transmission rocker arm, the support plate transfer rib and the rear support force transmission rocker arm form 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 provided 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.

[0015] 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 provided at the front end of the front auxiliary mounting support rod, and an external thread is provided on the outer surface of the rod body at the rear end of the front auxiliary mounting support rod; a cross-shaped jack is provided at the rear end center of the adapter stud, and the cross-shaped jack is plugged into and matched with the cross-shaped plug; an internal thread is provided on the inner surface of the rod body at the front end of the intermediate auxiliary mounting support rod, and an external thread is provided on the outer surface of the rod body at the rear end of the intermediate auxiliary mounting support rod; an internal thread is provided 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 the intermediate auxiliary mounting support rods is as follows: Several intermediate auxiliary mounting support rods are connected in series through threads; when the front auxiliary mounting support rod and the rear auxiliary mounting support rod are connected in series through 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 through 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 rings 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.

[0016] The support rod locking mechanism includes a locking block, a locking clasp, 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 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. A transmission plate guide slide is provided on the transmission frame, and the transmission plate has only a linear sliding freedom relative to the transmission plate guide slide; the ear seat is located in the rear chamber of the transmission frame, and the rear end of the transmission frame is hinged in the middle and rear part of the handle; one end of the transmission rod is fixedly connected to the locking clasp, 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 clasp is engaged with the locking block.

[0017] 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 fixed to the protective box by screws, and the protective box is fixed to the surrounding rock surface by a bolt adapter; auxiliary handles are provided on the top and side 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 number 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.

[0018] The sealing threading mechanism includes an inner double-headed outer hexagonal screw sleeve, an intermediate double-headed outer hexagonal screw sleeve and an outer 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 outer 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 inner threads; the outer 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; the interior of the inner double-headed outer hexagonal screw sleeve, the intermediate double-headed outer hexagonal screw sleeve and the outer plug nut are all filled with waterproof rubber, and a cable sealing passage channel is provided in the center of the waterproof rubber.

[0019] 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, includes the following steps:

[0020] Step 1: Use a drilling rig to complete drilling in 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. 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.

[0021] 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 rods;

[0022] Step 3: Adjust the hole wall support assembly to the minimum adjustable diameter, then pick up the front auxiliary mounting rod and insert the cross-shaped plug into the cross-shaped socket of the adapter stud to complete the series connection between the data monitoring unit and the front auxiliary mounting rod;

[0023] Step 4: Place the data monitoring unit toward the borehole and insert it into the hole. 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.

[0024] Step 5: ①. When the intermediate auxiliary mounting support rod is not needed, directly screw the rear auxiliary mounting support rod and the front auxiliary mounting support rod together in series, and at the same time adjust the support rod locking mechanism to the locking state. The auxiliary mounting unit is assembled, and then the data monitoring unit is continued to be fed into the borehole until the protective head rests on the bottom of the borehole and the annular handle remains outside the borehole; ②. When the intermediate auxiliary mounting support rod is needed, first screw the intermediate auxiliary mounting support rod and the front auxiliary mounting support rod together in series, and then screw the rear auxiliary mounting support rod and the intermediate auxiliary mounting support rod together in series, and at the same time adjust the support rod locking mechanism to the locking state, and then continue to feed the data monitoring unit into the borehole until the protective head rests on the bottom of the borehole and the annular handle remains outside the borehole;

[0025] Step 6: Hold the ring handle and apply axial pressure to the auxiliary installation unit and the data monitoring unit. At the same time, turn the ring handle. The adapter stud will screw 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. The data monitoring unit is fixed in the hole.

[0026] Step 7: Use the ring handle to apply axial tension to the auxiliary mounting unit to remove the cross-shaped plug on the front auxiliary mounting support rod from the cross-shaped socket of the adapter stud, completing the separation of the auxiliary mounting unit and the data monitoring unit. Then, remove the auxiliary mounting unit from the drilled hole, and at the same time, separate the cable guide buckle from the cable. Then, seal the drilled hole.

[0027] Step 8: Use the bolt adapter to fix the protective box of the intelligent early warning and prediction unit to the surrounding rock surface, then remove the sealed threading mechanism from the threading hole at the bottom of the protective box, and then pass the cable left outside the drill hole through the cable sealing passage of the sealed threading mechanism. Then connect the computer in the cable protection box, and then reinstall the sealed threading mechanism to the threading hole. At this time, the cable sealing threading is completed;

[0028] Step 9: Press the power switch, wait for the computer to start and enter the working state, then install the sealing cover onto the protective box to complete the sealing of the protective box. The installation work is completed.

[0029] Beneficial effects of the present invention:

[0030] The present invention provides an intelligent monitoring device and installation method for coordinated stress and microseismic monitoring in underground mines. This device achieves a high degree of integration between stress sensing elements and microseismic sensing elements, enabling simultaneous acquisition and processing of stress monitoring data and microseismic monitoring data, reducing data transmission delays and improving monitoring efficiency. This allows for dynamic, real-time early warning and prediction of geological disasters deep within mines. When the microseismic sensing element detects an abnormal vibration event, it can synchronously trigger the stress sensing element to enter a high-frequency sampling mode, thereby increasing the spatiotemporal resolution of the monitoring data and optimizing the data acquisition strategy. By combining historical data with real-time monitoring data and based on a deep learning model, the device can be used to construct a long-term early warning and prediction system for geological disasters, providing technical support for improving early warning capabilities and prediction accuracy. In terms of structural design, a modular design approach is adopted to optimize the installation, disassembly, and recovery processes of the device, reducing the difficulty of installation, disassembly, and recovery, as well as the operation and maintenance costs. The installed data monitoring unit can achieve long-term stable operation, effectively ensuring the effectiveness and reliability of data monitoring, and thereby ensuring the accuracy and reliability of mine safety early warnings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is an installation rendering of a mine underground stress and microseismic coordinated intelligent monitoring device according to the present invention;

[0032] Figure 2 Schematic diagram of the overall structure of the data monitoring unit of the present invention (viewing angle 1);

[0033] Figure 3 Schematic diagram of the overall structure of the data monitoring unit of the present invention (viewpoint 2);

[0034] Figure 4 A partial cross-sectional view of a data monitoring mechanism of a data monitoring unit of the present invention;

[0035] Figure 5 It is a partial cross-sectional view of the assembly of the limiting rear ring plate and the guiding rear slide rail in the hole wall support and fixing mechanism of the data monitoring unit of the present invention;

[0036] Figure 6 This is a schematic diagram of the overall structure of the front auxiliary mounting support rod of the auxiliary mounting unit of the present invention;

[0037] Figure 7 This is a schematic diagram of the overall structure of the middle auxiliary installation support rod of the auxiliary installation unit of the present invention;

[0038] Figure 8 It is a schematic diagram of the overall structure of the rear auxiliary mounting support rod of the auxiliary mounting unit of the present invention;

[0039] Figure 9 It is a schematic diagram of the overall structure of the support rod locking mechanism of the auxiliary installation unit of the present invention;

[0040] Figure 10 Schematic diagram of the overall structure of the intelligent early warning and prediction unit of the present invention (viewpoint one);

[0041] Figure 11 Schematic diagram of the overall structure of the intelligent early warning and prediction unit of the present invention (viewpoint 2);

[0042] Figure 12 A partial cross-sectional view of the sealing threading mechanism of the intelligent early warning and prediction unit of the present invention;

[0043] In the figure, I—data monitoring unit, II—auxiliary installation unit, III—intelligent early warning and prediction unit, 1—adapting stud, 2—protective sleeve, 3—sensing element packaged core column, 4—protective head, 5—packaged core column guide sleeve, 6—packaged core column insertion hole, 7—guide sleeve insertion ring groove, 8—guide sleeve elastic limiting buckle, 9—force transmission support spoke, 10—limited rear ring plate, 11—limited front ring plate, 12—guide rear slide rail, 13—guide front slide rail, 14—slide rail transition rib, 15—front support force transmission swing rod, 16—rear support force transmission swing rod, 17—hole wall support plate, 18—support plate transition rib, 19—rear slide rail guide ring groove, 20—limited front probe rod, 21—support plate radial guide slide groove, 22—front auxiliary installation support rod, 23 —Middle auxiliary mounting support rod, 24—Rear auxiliary mounting support rod, 25—Cross plug, 26—Cross socket, 27—Ring handle, 28—Cable guide ring buckle, 29—Locking block, 30—Locking snap ring, 31—Handle, 32—Ear seat, 33—Transmission frame, 34—Transmission plate, 35—Transmission rod, 36—Thrust spring, 37—Transmission plate guide groove, 38—Protective box, 39—Sealing cover, 40—Warning light, 41—Warning horn, 42—Auxiliary handle, 43—Power switch, 44—Bolt adapter, 45—Surrounding rock, 46—Cable, 47—Inner double-headed outer hexagonal screw sleeve, 48—Middle double-headed outer hexagonal screw sleeve, 49—External plug nut, 50—Waterproof rubber, 51—Cable sealing passage, 52—Drilling. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] like Figures 1 to 12 As shown, a device for collaborative intelligent monitoring of stress and microseismicity 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 a borehole 52, and the data monitoring unit I is plugged into and matched with the auxiliary installation unit II; the intelligent early warning and prediction unit III is arranged on the surface of the external surrounding rock 45 of the borehole 52, and the intelligent early warning and prediction unit III is communicatively connected to the data monitoring unit I via a cable 46.

[0046] The data monitoring unit I includes a data monitoring mechanism and a hole wall support and fixing mechanism, and the hole wall support and fixing mechanism is arranged outside the data monitoring mechanism.

[0047] The data monitoring mechanism includes a transition stud 1, a protective sleeve 2, a sensor element package core column 3, a protective head 4 and a package core column guide sleeve 5; the outer surface of the front half of the column of the transition stud 1 is provided with an external thread; the inner surface of the rear half of the cylinder of the protective sleeve 2 is provided with an internal thread, and the rear half of the cylinder of the protective sleeve 2 is coaxially sleeved on the outer side of the front half of the column of the transition stud 1 and threadedly connected; the protective head 4 is fixed to the front end of the protective sleeve 2; a package core column insertion hole 6 is provided at the center of the front end of the transition stud 1, and the rear end of the sensor element package core column 3 is slidably plugged into the package core column insertion hole 6, and the front of the sensor element package core column 3 is inserted into the package core column insertion hole 6. The end is fixedly connected to the protective head 4; a guide sleeve insertion ring groove 7 is provided at the orifice of the packaging core column insertion hole 6; the packaging core column guide sleeve 5 is coaxially sleeved on the outside of the sensor element packaging core column 3, and the rear end of the packaging core column guide sleeve 5 is inserted in the guide sleeve insertion ring groove 7, and a guide sleeve elastic limiting buckle 8 is provided between the guide sleeve insertion ring groove 7 and the packaging core column guide sleeve 5; the inside of the sensor element packaging core column 3 is respectively equipped with micro-seismic sensor elements, stress sensor elements and integrated data acquisition and transmission elements along the axial direction; force transmission support spokes 9 are evenly fixed along the circumferential direction between the sensor element packaging core column 3 and the front half of the cylinder of the protective sleeve 2.

[0048] Specifically, the adapter stud 1 can be screwed in and out relative to the protective sleeve 2 through a threaded structure. When the adapter stud 1 and the protective sleeve 2 produce relative displacement in the axial direction, the sensor element package core column 3 can synchronously slide axially relative to the package core column guide sleeve 5 and the package core column insertion hole 6.

[0049] The hole wall support and fixing mechanism includes a limiting rear ring plate 10, a limiting front ring plate 11 and a hole wall support assembly; the limiting rear ring plate 10 is coaxially fixedly sleeved on the outside of the adapter stud 1; the limiting front ring plate 11 is coaxially fixedly sleeved on the outside of the protective head 4; the hole wall support assembly is arranged between the limiting rear ring plate 10 and the limiting front ring plate 11, and there are several hole wall support assemblies, and the several hole wall support assemblies are evenly distributed along the circumferential direction of the protective sleeve 2.

[0050] Specifically, the limiting rear ring plate 10 moves synchronously with the adapter stud 1, and the limiting 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 of the protective sleeve 2, the distance between the limiting rear ring plate 10 and the limiting front ring plate 11 will change synchronously, thereby driving the hole wall support assembly to move.

[0051] The hole wall support assembly includes a guide rear rail 12, a guide front rail 13, a rail transition 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 transition rib 18; a rear rail guide ring groove 19 is provided on the front surface of the limit rear ring plate 10, and the rear end of the guide rear rail 12 is located in the rear rail guide ring groove 19, and the guide rear rail 12 has only annular sliding freedom relative to the rear rail guide ring groove 19, and the lower surface of the guide rear rail 12 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 guide rear slide rail 12, and a front slide rail guide groove is provided on the guide rear slide rail 12 below the slide rail transfer rib 14; the rear end of the guide front slide rail 13 is inserted into the front slide rail guide groove, and the guide front slide rail 13 has only a linear sliding freedom relative to the front slide rail guide groove, and the front end of the guide front slide rail 13 is fixedly connected to the rear surface of the limiting front ring plate 11, and the lower surface of the guide front slide rail 13 is in contact with the protective sleeve 2. The outer surface of the sleeve 2 is in contact; 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 support plate transfer rib 18 rear end; the slide rail transfer rib 14, the front support force transmission rocker arm 15, the support plate transfer rib 18 and the rear support force transmission rocker arm 16 constitute a parallelogram structure; a limited 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 groove 21 is provided on the limited front ring plate 11, and the limited front probe rod 20 is located in the support plate radial guide groove 21, and the limited front probe rod 20 only has a linear sliding degree of freedom relative to the support plate radial guide groove 21.

[0052] Specifically, when the distance between the limiting rear ring plate 10 and the limiting front ring plate 11 changes, the guiding rear slide rail 12 may produce axial movement relative to the guiding front slide rail 13, and the slide rail transition rib 14 will drive the lower hinge points of the front support force transmission rocker arm 15 and the rear support force transmission rocker arm 16 to move synchronously. Since the hole wall support plate 17 can only move in the radial direction under the restriction of the limiting front probe rod 20 and the support plate radial guide groove 21, the swinging movement of the front support force transmission rocker arm 15 and the rear support force transmission rocker arm 16 will eventually drive the hole wall support plate 17 to move radially up and down. When surrounding rock 45 deforms, the resulting stress is transmitted sequentially through the borehole wall support plate 17, support plate transition rib 18, front support force transmission rocker 15, rear support force transmission rocker 16, slide rail transition rib 14, guide rear slide rail 12, guide front slide rail 13, protective sleeve 2, force transmission support spoke 9, and sensor element encapsulated core column 3 to the stress sensor element, enabling real-time collection of stress data. The vibrations generated by surrounding rock 45 during stress release are directly transmitted to the microseismic sensor element via the protective head 4 and sensor element encapsulated core column 3, enabling real-time collection of microseismic data.

[0053] The auxiliary mounting unit II includes a front auxiliary mounting support rod 22, an intermediate auxiliary mounting support rod 23 and a rear auxiliary mounting support rod 24; a cross plug 25 is fixedly provided at the front end of the front auxiliary mounting support rod 22, and an external thread is provided on the outer surface of the rod body at the rear end of the front auxiliary mounting support rod 22; a cross socket 26 is provided at the rear end center of the adapter stud 1, and the cross socket 26 is plugged into the cross plug 25; an internal thread is provided on the inner surface of the rod body at the front end of the intermediate auxiliary mounting support rod 23, and an external thread is provided on the outer surface of the rod body at the rear end of the intermediate auxiliary mounting support rod 23; an internal thread is provided on the inner surface of the rod body at the front end of the rear auxiliary mounting 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 mounting support rod 24, and an anti-slip rubber sleeve is installed on the annular handle 27; the number of the intermediate auxiliary mounting support rods 23 is as follows: Several intermediate auxiliary mounting support rods 23 are connected in series by threads; when the front auxiliary mounting support rod 22 and the rear auxiliary mounting support rod 24 are connected in series by threads, the front auxiliary mounting support rod 22 and the rear auxiliary mounting support rod 24 are connected at the junction by a support rod locking mechanism to lock the freedom between the rods; when the front auxiliary mounting support rod 22, the intermediate auxiliary mounting support rod 23 and the rear auxiliary mounting support rod 24 are connected in series by threads, the front auxiliary mounting support rod 22 and the intermediate auxiliary mounting support rod 23 are connected, the adjacent intermediate auxiliary mounting support rods 23 are connected, and the intermediate auxiliary mounting support rod 23 and the rear auxiliary mounting support rod 24 are connected. Cable guide ring buckles 28 are fixedly provided on the outer surfaces of the rods of the front auxiliary mounting support rod 22, the intermediate auxiliary mounting support rod 23 and the rear auxiliary mounting support rod 24.

[0054] Specifically, the length of auxiliary mounting unit II is determined by the number of intermediate auxiliary mounting struts 23 connected in series. When the number of intermediate auxiliary mounting struts 23 is zero, the length of auxiliary mounting unit II is the shortest, being the sum of the lengths of the front auxiliary mounting struts 22 and the rear auxiliary mounting struts 24. Furthermore, the greater the number of intermediate auxiliary mounting struts 23 connected in series, the longer the auxiliary mounting unit II. When two adjacent auxiliary mounting struts are screwed together, a strut locking mechanism is used to lock the two adjacent auxiliary mounting struts at the joint to prevent the threads from loosening when subsequently tightening the auxiliary mounting unit II. This ensures that torque can be smoothly transmitted when subsequently tightening the auxiliary mounting unit II.

[0055] The support rod locking mechanism includes a locking block 29, a locking clamp 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 surface of the support rod on both sides of the connection point of the auxiliary mounting support rod; 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, and a transmission plate guide groove 37 is provided on the transmission frame 33. The movable plate 34 has only linear sliding freedom relative to the transmission plate guide groove 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 snap ring 30, and the other end of the transmission rod 35 passes through 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 on the outside of the transmission rod 35, and the thrust spring 36 is supported between the transmission plate 34 and the transmission frame 33; the locking snap ring 30 is snap-fitted with the locking block 29.

[0056] Specifically, when the two adjacent auxiliary mounting rods are screwed together, first grasp the handle 31, then flip the handle 31 upward around the ear seat 32, so that the handle 31 changes from a horizontal state to an upright state, and then the transmission frame 33 can be driven to approach the locking block 29, and then the transmission frame 33 is rotated around the hinge point between the transmission frame 33 and the handle 31, so that the locking clamp 30 is inserted into the locking block 29, and then the handle 31 is flipped downward around the ear seat 32, so that the handle 31 returns to a horizontal state from the upright state, driving the transmission frame 33 away from the locking block. 29. At this time, since the locking snap 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. Then, relative movement will occur 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 snap 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 the torque can be reliably transmitted between the two adjacent auxiliary mounting support rods.

[0057] The intelligent early warning prediction unit III adopts a box-type structure, including a protective box 38, a sealing cover 39, a computer, a warning light 40, a warning speaker 41, an auxiliary handle 42, a power switch 43 and a sealed wire threading mechanism; the computer is built-in and installed inside the protective box 38, the sealing cover 39 is fixed to the protective box 38 by screws, and the protective box 38 is fixed to the surface of the surrounding rock 45 by a bolt adapter 44; auxiliary handles 42 are provided on the top and side of the protective box 38; the warning light 40 and the warning speaker 41 are both fixedly provided on the top of the protective box 38; the power switch 43 is provided at the bottom of the protective box 38, and a number of wire threading holes are also provided at the bottom of the protective box 38, each of which is provided with a sealed wire threading mechanism, and the cable 46 passes through the sealed wire threading mechanism to be connected to the computer.

[0058] Specifically, the sealing between the cable 46 and the threading hole at the bottom of the protective box 38 is ensured by a sealed threading mechanism, which can prevent water and dust from entering the interior of the protective box 38 through the threading hole. The data generated by the microseismic sensor element and the stress sensor element inside the sensor element package core column 3 can be directly transmitted to the computer in the protective box 38 through the cable 46 by the integrated data acquisition and transmission element. When the microseismic sensor element detects an abnormal vibration event, it can synchronously trigger the stress sensor element to enter the high-frequency sampling mode, thereby improving the spatiotemporal resolution of the monitoring data. By combining historical data with real-time monitoring data, and then based on a deep learning model, it can meet the construction of a long-term early warning and prediction system for geological disasters. At the same time, when an abnormal vibration event occurs, the computer can automatically make a judgment based on the monitored data, and send out an audible and visual alarm in real time through the warning light 40 and the warning speaker 41, providing a reliable early warning for personnel to evacuate the dangerous area in time.

[0059] The sealing threading mechanism includes an inner double-headed outer hexagonal screw sleeve 47, an intermediate double-headed outer hexagonal screw sleeve 48 and an outer plug nut 49; the middle part of the inner double-headed outer hexagonal screw sleeve 47 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 48 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 outer plug nut 49 is threadedly connected with the intermediate double-headed outer hexagonal screw sleeve 48, the intermediate double-headed outer hexagonal screw sleeve 48 is threadedly connected with the inner double-headed outer hexagonal screw sleeve 47, and the inner double-headed outer hexagonal screw sleeve 47 is threadedly connected with the threading hole at the bottom of the protective box 38; the interior of the inner double-headed outer hexagonal screw sleeve 47, the intermediate double-headed outer hexagonal screw sleeve 48 and the outer plug nut 49 are all filled with waterproof rubber 50, and a cable sealing passage 51 is provided in the center of the waterproof rubber 50.

[0060] 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, includes the following steps:

[0061] Step 1: Use a drilling rig to complete the processing of a borehole 52 in the surrounding rock 45. The diameter of the borehole 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 borehole 52 is larger than the sum of the lengths of the data monitoring unit 1 and the front auxiliary mounting support rod 22.

[0062] Step 2: Determine the length of the auxiliary mounting unit II according to the depth of the drill hole 52, and then select the required number of intermediate auxiliary mounting rods 23;

[0063] Step 3: Adjust the hole wall support assembly to the minimum adjustable diameter state, then pick up the front auxiliary mounting support rod 22, and insert the cross-shaped plug 25 into the cross-shaped socket 26 of the adapter stud 1 to complete the series connection between the data monitoring unit 1 and the front auxiliary mounting support rod 22;

[0064] Step 4: Place the data monitoring unit 1 toward the borehole 52 and insert it into the hole. The front auxiliary mounting support rod 22 and the data monitoring unit 1 are simultaneously inserted into the borehole 52, leaving the support rod locking mechanism at the rear end of the front auxiliary mounting support rod 22 outside the borehole 52.

[0065] Step 5: ①, when the intermediate auxiliary mounting support rod 23 is not needed, the rear auxiliary mounting support rod 24 is directly screwed in series with the front auxiliary mounting support rod 22, and the support rod locking mechanism is adjusted to the locking state. The auxiliary mounting unit II is assembled, and then the data monitoring unit I is continued to be fed into the borehole 52 until the protective head 4 is against the bottom of the borehole 52, and the annular handle 27 remains outside the borehole 52; ②, when the intermediate auxiliary mounting support rod 23 is needed, the intermediate auxiliary mounting support rod 23 is first screwed in series with the front auxiliary mounting support rod 22, and then the rear auxiliary mounting support rod 24 is screwed in series with the intermediate auxiliary mounting support rod 23, and the support rod locking mechanism is adjusted to the locking state, and then the data monitoring unit I is continued to be fed into the borehole 52 until the protective head 4 is against the bottom of the borehole 52, and the annular handle 27 remains outside the borehole 52;

[0066] Step 6: Hold the annular handle 27 and apply axial pressure to the auxiliary installation unit II and the data monitoring unit I. At the same time, turn the annular handle 27. The adapter stud 1 will screw into the protective sleeve 2 toward the bottom of the borehole 52, thereby increasing the diameter of the hole wall support assembly until the hole wall support plate 17 is supported on the wall of the borehole 52. The data monitoring unit I is then fixed in the borehole 52.

[0067] Step 7: Apply axial tension to the auxiliary mounting unit II using the annular handle 27 to remove the cross-shaped plug 25 on the front auxiliary mounting support rod 22 from the cross-shaped socket 26 of the adapter stud 1, completing the separation of the auxiliary mounting unit II from the data monitoring unit I. The auxiliary mounting unit II is then removed from the drilled hole 52, and the cable guide buckle 28 is simultaneously disengaged from the cable 46. The drilled hole 52 is then sealed.

[0068] Step 8: Securely connect the protective box 38 of the intelligent early warning and prediction unit III to the surface of the surrounding rock 45 via the bolt adapter 44. Then, remove the sealed threading mechanism from the threading hole at the bottom of the protective box 38. Pass the cable 46 left outside the drill hole 52 through the cable sealing passage 51 of the sealed threading mechanism. Then, connect the cable 46 to the computer in the protective box 38. Then, reinstall the sealed threading mechanism onto the threading hole. At this point, the sealed threading of the cable 46 is complete.

[0069] Step nine: Press the power switch 43, wait for the computer to start and enter the working state, then install the sealing cover 39 on the protective box 38 to complete the sealing of the protective box 38, and the installation work is completed.

[0070] The solutions in the embodiments are not intended to limit the scope of protection of the present invention. All equivalent implementations or modifications that do not depart from the scope of protection of the present invention are included in the scope of protection of the present invention.

Claims

1. An intelligent monitoring device for underground mine stress and microseismic coordination, characterized by: The data monitoring unit 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 into 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 package core column, a protective head and a package 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 threadedly connected; the protective head is fixed at the front end of the protective sleeve; a package core column insertion hole is provided at the center of the front end of the transfer stud, and the rear end of the sensor element package core column is slidably plugged into the package core column insertion hole The front end of the sensor element packaged core column is fixedly connected to the protective head; a guide sleeve insertion ring groove is provided at the opening of the packaged core column insertion hole; the packaged core column guide sleeve is coaxially sleeved on the outside of the sensor element packaged core column, and the rear end of the packaged core column guide sleeve is inserted into the guide sleeve insertion ring groove, and a guide sleeve elastic limiting buckle is provided between the guide sleeve insertion ring groove and the packaged core column guide sleeve; the micro-seismic sensor element, stress sensor element and integrated data acquisition and transmission element are respectively installed axially inside the sensor element packaged 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; 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 several hole wall support assemblies, and the several hole wall support assemblies are evenly distributed along the circumferential direction of the protective sleeve.

2. The intelligent monitoring device for underground mine stress and microseismic coordinated monitoring according to claim 1, characterized in that: The rear end of the guide rail is fixedly mounted on the front of the driving member, and the rear end of the guide rail is fixedly mounted on the front of the driving member, and the rear end of the guide rail is fixedly mounted on the front of the driving member. The outer surface of the protective sleeve is in contact with the outer surface of the protective 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 rocker arm is hinged to the front end of the slide rail transfer rib, and the upper end of the front support force transmission rocker arm is hinged to the front end of the support plate transfer rib; the lower end of the rear support force transmission rocker arm is hinged to the rear end of the slide rail transfer rib, the upper end of the rear support force transmission rocker arm is hinged to the rear end of the support plate transfer rib; the slide rail transfer rib, the front support force transmission rocker arm, the support plate transfer rib and the rear support force transmission rocker arm form 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 provided 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.

3. The intelligent monitoring device for coordinated stress and microseismic monitoring in underground mines according to claim 2, 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 provided at the front end of the front auxiliary mounting support rod, and an external thread is provided on the outer surface of the rod body at the rear end of the front auxiliary mounting support rod; a cross-shaped jack is provided at the rear end center of the adapter stud, and the cross-shaped jack is plugged into and matched with the cross-shaped plug; an internal thread is provided on the inner surface of the rod body at the front end of the intermediate auxiliary mounting support rod, and an external thread is provided on the outer surface of the rod body at the rear end of the intermediate auxiliary mounting support rod; an internal thread is provided 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 the intermediate auxiliary mounting support rods is as follows: Several intermediate auxiliary mounting support rods are connected in series through threads; when the front auxiliary mounting support rod and the rear auxiliary mounting support rod are connected in series through 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 through 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 rings 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.

4. The intelligent monitoring device for coordinated stress and microseismic monitoring in underground mines according to claim 3, characterized in that: The support rod locking mechanism includes a locking block, a locking clasp, 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 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. A transmission plate guide slide is provided on the transmission frame, and the transmission plate has only a linear sliding freedom relative to the transmission plate guide slide; the ear seat is located in the rear chamber of the transmission frame, and the rear end of the transmission frame is hinged in the middle and rear part of the handle; one end of the transmission rod is fixedly connected to the locking clasp, 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 clasp is engaged with the locking block.

5. The intelligent monitoring device for coordinated stress and microseismic monitoring in underground mines according to claim 3, 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 fixed to the protective box by screws, and the protective box is fixed to the surrounding rock surface by a bolt adapter; auxiliary handles are provided on the top and side 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 number 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.

6. The intelligent monitoring device for coordinated stress and microseismic monitoring in underground mines according to claim 5, 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 outer 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 outer 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 inner threads; the outer 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; the interior of the inner double-headed outer hexagonal screw sleeve, the intermediate double-headed outer hexagonal screw sleeve and the outer plug nut are all filled with waterproof rubber, and a cable sealing passage channel is provided in the center of the waterproof rubber.

7. 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 6, characterized in that: The steps include: Step 1: Use a drilling rig to complete drilling in 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. 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 rods; Step 3: Adjust the hole wall support assembly to the minimum adjustable diameter, then pick up the front auxiliary mounting rod and insert the cross-shaped plug into the cross-shaped socket of the adapter stud to complete the series connection between the data monitoring unit and the front auxiliary mounting rod; Step 4: Place the data monitoring unit toward the borehole and insert it into the hole. 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 intermediate auxiliary mounting support rod is not needed, directly screw the rear auxiliary mounting support rod and the front auxiliary mounting support rod together in series, and at the same time adjust the support rod locking mechanism to the locking state. The auxiliary mounting unit is assembled, and then the data monitoring unit is continued to be fed into the borehole until the protective head rests on the bottom of the borehole and the annular handle remains outside the borehole; ②. When the intermediate auxiliary mounting support rod is needed, first screw the intermediate auxiliary mounting support rod and the front auxiliary mounting support rod together in series, and then screw the rear auxiliary mounting support rod and the intermediate auxiliary mounting support rod together in series, and at the same time adjust the support rod locking mechanism to the locking state, and then continue to feed the data monitoring unit into the borehole until the protective head rests on the bottom of the borehole and the annular handle remains outside the borehole; Step 6: Hold the ring handle and apply axial pressure to the auxiliary installation unit and the data monitoring unit. At the same time, turn the ring handle. The adapter stud will screw 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. The data monitoring unit is fixed in the hole. Step 7: Use the ring handle to apply axial tension to the auxiliary mounting unit to remove the cross-shaped plug on the front auxiliary mounting support rod from the cross-shaped socket of the adapter stud, completing the separation of the auxiliary mounting unit and the data monitoring unit. Then, remove the auxiliary mounting unit from the drilled hole, and at the same time, separate the cable guide buckle from the cable. Then, seal the drilled hole. Step 8: Use the bolt adapter to fix the protective box of the intelligent early warning and prediction unit to the surrounding rock surface, then remove the sealed threading mechanism from the threading hole at the bottom of the protective box, and then pass the cable left outside the drill hole through the cable sealing passage of the sealed threading mechanism. Then connect the computer in the cable protection box, and then reinstall the sealed threading mechanism 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 and enter the working state, then install the sealing cover onto the protective box to complete the sealing of the protective box. The installation work is completed.

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