Single filling chamber-surrounding rock synchronous monitoring system and monitoring method thereof

Abstract

The invention belongs to the technical field of island construction engineering, deep sea mining and mining stability, and discloses a single filling chamber-surrounding rock synchronous monitoring system and a monitoring method thereof, and the synchronous monitoring system is composed of a single filling chamber field monitoring system, an underground data preprocessing system, a signal transmission system and an information terminal processing platform. A plurality of single-point displacement meters in different directions are integrated in the single filling chamber, and the connecting modules are connected with one another, so that the problem that the displacement meters fail when the surrounding rock slides in a large range is effectively solved, the accuracy and the reliability of displacement monitoring of the surrounding rock of the single filling chamber are improved, and the safety of underground operating personnel and equipment is ensured. Meanwhile, the standard of an automatic alarm system in the underground data preprocessing system is optimized in real time, so that the alarm can be triggered quickly and accurately when the displacement of the surrounding rock of the charging chamber suddenly changes, the false alarm rate is reduced, the production interruption is reduced to the greatest extent, and the production safety and continuity are further guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of island construction engineering, deep sea mining and metal mine mining stability technology, and specifically relates to a single filling chamber-surrounding rock synchronous monitoring system and a monitoring method. Background Art

[0002] When island construction projects, deep-sea mining, and metal mines are mined to a certain depth, tunnels are various passages that need to be drilled between the surface and the project. They are necessary preparatory projects for transporting ore, ventilation, drainage, pedestrians, and for the entry and exit of equipment. Their stability and safety are very important for the entire mining process.

[0003] After the tunnel is formed, the surrounding rock will be displaced due to the influence of congenital joints, blasting excavation and stress transfer. When the displacement reaches a certain level, the stability of the tunnel will be at great risk. Therefore, devices for monitoring displacement are generally installed in the tunnel.

[0004] From the perspective of monitoring data acquisition, most of the existing monitoring equipment focuses on the displacement, stress or water level changes of the surrounding rock at different depths at a single location. This method is difficult to effectively monitor the overall slip caused by large joints. If multiple mines are arranged at the same time, the arrangement of monitoring points will lead to weak correlation between the monitoring points, too long signal transmission distance, and excessive cost consumption. From the perspective of monitoring data analysis, due to the relatively harsh underground environment and difficult data transmission, there are two situations for on-site displacement monitoring equipment. One is fixed-point sampling monitoring, followed by manual extraction for unified summary processing, and the other is automatic underground monitoring and alarm. The first will cause the lag of monitoring data feedback, and the second will cause the surrounding rock evaluation standard to be unable to be adjusted according to the actual situation, resulting in excessive alarms or failure to alarm in time. Failure to alarm is prone to risks, and excessive alarms will delay the progress of the project. Therefore, it is necessary to improve and optimize the data acquisition and analysis of the monitoring system. Summary of the invention

[0005] The object of the present invention is to provide a single filling chamber-surrounding rock synchronous monitoring system and a monitoring method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a single filling chamber-surrounding rock synchronous monitoring system and a monitoring method thereof, wherein the synchronous monitoring system is composed of a field monitoring system, an underground data preprocessing system, a signal transmission system and an information terminal processing platform.

[0007] The field monitoring system is composed of displacement monitoring equipment, temperature monitoring equipment, pore water permeability pressure monitoring equipment, monitoring equipment connecting rods and displacement meter connection assemblies; the downhole data preprocessing system is composed of a modifiable field data classification standard, a field data receiving device, a field data storage unit and a field alarm device; the signal transmission system is composed of an optical cable, wireless transmission equipment, and a cloud data website; the information terminal processing platform includes computer-side detailed information processing software, mobile phone-side simple information processing software and an online early warning device.

[0008] The monitoring method of the synchronous monitoring system is:

[0009] S1, the staff first installs the field monitoring system and the downhole data preprocessing system at the designated location, and lays optical fiber to enable data transmission between the two;

[0010] S2, the staff starts and debugs the displacement monitoring equipment and downhole data preprocessing system in the field monitoring system, connects the field alarm device, and completes the signal connection and power supply of the downhole equipment;

[0011] S3, the staff connects the underground data preprocessing system with the wireless transmission system, and uses optical cables and wired transmission when necessary to ensure that the data can be uploaded and stored on the cloud data website normally;

[0012] S4, the staff uses the information terminal processing platform to issue instructions to the underground field monitoring system and the underground data preprocessing system, monitor and process the field data in real time, and check whether the online early warning device is operating normally;

[0013] S5, after checking that the equipment is operating normally, the synchronous monitoring system starts to perform monitoring work in a cycle.

[0014] Preferably, the synchronous monitoring system is composed of:

[0015] S1, the field monitoring system includes N displacement monitoring devices, M temperature monitoring devices, N pore water seepage pressure monitoring devices, N+M-1 monitoring device connecting rods, and M connection assemblies, wherein the relationship between N and M is 5:1, and M is an integer ≥1;

[0016] S2, place the pore water permeability pressure monitoring device at the connection between the maximum depth measuring rod and the anchor head of the displacement monitoring device, and test whether it can be used normally;

[0017] S3, connect the temperature monitoring device to the pore water pressure monitoring device and test whether they can be used normally.

[0018] Preferably, the connecting rod of the displacement monitoring device includes a measuring rod, a PVC protective tube, a base and a base protective cover, and has a displacement monitoring function.

[0019] Preferably, the temperature monitoring device has the function of monitoring the temperature inside the rock in a water-rich environment.

[0020] Preferably, the pore water permeability pressure monitoring device is composed of a built-in pressure sensor body and a filter (i.e., permeable stone), and has a water pressure monitoring function.

[0021] Preferably, the downhole data preprocessing system is divided into field equipment and classification standards, and the field equipment is composed of a field data receiving device, a field data storage unit and a field alarm device.

[0022] Preferably, the computer-side detailed processing software has the functions of monitoring system additions and deletions, data processing and report generation.

[0023] The underground data preprocessing device includes: ① an intelligent AI algorithm that can independently perform intelligent analysis on the monitoring data and send the information obtained from the analysis to the cloud; ② an instant alarm device that can issue an underground early warning in the first time to remind workers to evacuate when the information obtained from the analysis reaches a set level or an alarm information is received from the cloud feedback; ③ the device integrates the system with any connection assembly.

[0024] The synchronous monitoring system includes a "solid-liquid" collaborative monitoring device, which integrates a displacement monitoring device, an osmotic pressure monitoring device, and a temperature monitoring device on the same rod through a connecting rod; the osmotic pressure monitoring device is rigidly connected to the anchor head.

[0025] Preferably, four groups of mounting blocks are fixedly mounted on the four corners of the back of the downhole data processing device.

[0026] A mounting plate is provided at the rear of the downhole data processing device, and the mounting plate is integrated and installed on any connection assembly of the monitoring system. Mounting grooves are provided on the left and right sides above the mounting plate, and mounting holes are provided on the left and right sides below the mounting plate. The mounting block and the mounting plate are fastened together by fasteners.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. The present invention integrates multiple single-point displacement meters in different directions and connects them to each other through connection modules, thereby effectively preventing the problem of displacement meter failure when large-scale sliding of surrounding rocks occurs, significantly improving the accuracy and reliability of surrounding rock displacement monitoring, thereby ensuring the safety of underground workers and equipment. At the same time, the real-time optimization of the automatic alarm system standard in the underground data preprocessing system not only ensures that the alarm can be triggered quickly and accurately when the surrounding rock displacement suddenly changes, reducing the false alarm rate, but also minimizes production interruptions, further ensuring production safety and continuity.

[0029] 2. The present invention places the pore water seepage pressure monitoring equipment and the temperature monitoring equipment at the connection between the maximum depth measuring rod of the displacement monitoring equipment and the anchor head, so that the pore water pressure monitoring equipment and the temperature monitoring equipment can follow the displacement monitoring equipment to generate displacement uniformly, thereby realizing the "solid-liquid" coordinated monitoring in the surrounding rock and avoiding data failure caused by deformation of the surrounding rock and change of the position of the monitoring equipment.

[0030] 3. The present invention integrates the downhole data information processing system with any connection assembly to avoid data loss due to network instability or failure to monitor normally due to optical fiber damage. It can analyze all data during the damage period at the first time of repair, thus avoiding problems such as untimely data analysis due to equipment problems to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the system of the present invention;

[0032] Figure 2 This is an internal diagram of the field data processing device of the present invention;

[0033] Figure 3 A schematic diagram of the structure of the on-site monitoring system of the present invention;

[0034] Figure 4 A front view of the field monitoring system of the present invention;

[0035] Figure 5 A side view of the field monitoring system of the present invention;

[0036] Figure 6 A partial enlarged view of the mine room-surrounding rock collaborative monitoring equipment of the present invention;

[0037] In the figure: 1. Underground data processing device; 2. Connection assembly; 3. Mine room-surrounding rock collaborative monitoring equipment; 4. Mine room-surrounding rock collaborative monitoring equipment connecting rod; 5. Connecting piece; 6. Protective casing; 7. Pressure and temperature sensor; 8. Permeable stone; 9. Anchor head; 10. Measuring rod. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the present invention to use specific embodiments to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figures 1 to 6 As shown, an embodiment of the present invention provides a single filling chamber-surrounding rock synchronous monitoring system, its monitoring method and installation structure. The synchronous monitoring system is composed of a field monitoring system, an underground data preprocessing system, a signal transmission system and an information terminal processing platform; the field monitoring system is composed of a displacement monitoring device, a temperature monitoring device, a monitoring device connecting rod and a displacement meter connection assembly, the underground data preprocessing system is composed of a modifiable field data classification standard, a field data receiving device, a field data storage unit and a field alarm device, the signal transmission system is composed of an optical cable, a wireless transmission device, and a cloud data website, and the information terminal processing platform includes computer-side detailed information processing software, mobile phone-side simple information processing software and an online early warning device.

[0040] Among them, the monitoring method of the real-time synchronous monitoring system is:

[0041] S1, the staff first installs the field monitoring system at a single tunnel location, where the maximum monitoring depth of a single displacement meter is A meters, A is an integer ≥ 20, each group of five displacement meters, the distance between groups is B meters, B is an integer ≥ 5, a total of C groups are installed, C is an integer ≥ 3, and the displacement meters of C groups together constitute the field monitoring system;

[0042] S2, the staff installs the downhole data preprocessing system at any connection assembly position and starts debugging;

[0043] S2: Workers place alarm devices in all areas where workers are active within the 2A×2A×(C-1)×B cubic meters covered by the monitoring system, and connect them to the monitoring system to complete the signal connection and power supply of underground equipment;

[0044] S3, the staff connects the underground data preprocessing system with the wireless transmission system, and uses optical cables and wired transmission when necessary to ensure that the data can be uploaded and stored on the cloud data website normally;

[0045] S4, the staff uses the information terminal processing platform to issue instructions to the underground field monitoring system and the underground data preprocessing system, monitor and process the field data in real time, and check whether the online early warning device is operating normally;

[0046] S5, after checking that the equipment is operating normally, start the monitoring work in a cycle.

[0047] By integrating multiple single-point displacement meters in different directions and connecting them with each other through connection modules, the problem of displacement meter failure when large-scale sliding of the surrounding rock occurs is effectively prevented, and the accuracy and reliability of surrounding rock displacement monitoring are significantly improved, thereby ensuring the safety of underground workers and equipment. At the same time, the real-time optimization of the automatic alarm system standard in the underground data preprocessing system not only ensures that the alarm can be triggered quickly and accurately when the surrounding rock displacement changes suddenly, reducing the false alarm rate, but also minimizes production interruptions, further ensuring production safety and continuity.

[0048] Among them, the field monitoring system includes N displacement monitoring devices, M temperature monitoring devices, N+M-1 monitoring device connecting rods, and M connecting assemblies, where the relationship between N and M is 5:1, and M is an integer ≥1.

[0049] The displacement monitoring device and the temperature monitoring device together constitute a single-point displacement monitoring device.

[0050] Wherein, the temperature monitoring device is installed on the displacement meter connection assembly, and the temperature monitoring device includes a temperature sensor device and a protective cover.

[0051] Among them, the connecting rod of the displacement monitoring equipment includes a measuring rod, a PVC protective tube, a base and a base protection cover, and has a displacement monitoring function.

[0052] Among them, the underground data preprocessing system is divided into field equipment and classification standards. The field equipment consists of a field data receiving device, a field data storage unit and a field alarm device.

[0053] Among them, the computer-side detailed processing software has the functions of monitoring system additions and deletions, data processing and report generation.

[0054] Although some embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and all resulting solutions fall within the protection scope of the present invention.

Claims

1. A single filling chamber-surrounding rock synchronous monitoring system and monitoring method thereof, characterized in that: The synchronous monitoring system is composed of a field monitoring system, a downhole data preprocessing system, a signal transmission system and an information terminal processing platform; the field monitoring system is composed of a displacement monitoring device, a temperature monitoring device, a pore water permeability pressure monitoring device, a monitoring device connecting rod and a displacement meter connection assembly; the downhole data preprocessing system is divided into field equipment and a modifiable field classification standard, and the field equipment is composed of a field data receiving device, a field data storage unit and a field alarm device; the signal transmission system is composed of an optical cable, a wireless transmission device and a cloud data website; the information terminal processing platform includes computer-side detailed information processing software, mobile-side simple information processing software and an online early warning device; the monitoring method of the synchronous monitoring system is: S1, the staff first installs the field monitoring system and the downhole data preprocessing system at the designated location, and lays optical fiber to enable data transmission between the two; S2, the staff starts and debugs the displacement monitoring equipment and downhole data preprocessing system in the field monitoring system, connects the field alarm device, and completes the signal connection and power supply of the downhole equipment; S3, the staff connected the underground data preprocessing system with the wireless transmission system, and used wired transmission as an alternative through optical cables to ensure that the data could be uploaded and stored on the cloud data website normally; S4, the staff uses the information terminal processing platform to issue instructions to the underground field monitoring system and the underground data preprocessing system, monitor and process the field data in real time, and check whether the online early warning device is operating normally; S5, after checking that the equipment is operating normally, the synchronous monitoring system starts to perform monitoring work in a cycle.

2. A single filling chamber-surrounding rock synchronous monitoring system and monitoring method according to claim 1, characterized in that: The field monitoring system includes N displacement monitoring devices, M temperature monitoring devices, N pore water seepage pressure monitoring devices, N+M-1 monitoring device connecting rods, and M displacement meter connection assemblies, wherein the relationship between N and M is 5:1, and M is an integer ≥1; the pore water seepage pressure monitoring device is placed at the connection between the maximum depth measuring rod and the anchor head of the displacement monitoring device; the temperature monitoring device is connected to the pore water pressure monitoring device.

3. The single filling chamber-surrounding rock synchronous monitoring system and monitoring method according to claim 1, characterized in that: The temperature monitoring device is installed on the displacement meter connection assembly, and the temperature monitoring device includes a temperature sensor device and a protective cover; the temperature monitoring device is placed inside the rock or in a water-rich environment to monitor the temperature.

4. The single filling chamber-surrounding rock synchronous monitoring system and monitoring method according to claim 1, characterized in that: The displacement monitoring device connecting rod comprises a measuring rod, a PVC protective tube, a base and a base protective cover.

5. The single filling chamber-surrounding rock synchronous monitoring system and monitoring method according to claim 1, characterized in that: The pore water permeability pressure monitoring device is composed of a built-in pressure sensor body and a filter (also known as permeable stone).

6. The single filling chamber-surrounding rock synchronous monitoring system and monitoring method according to claim 1, characterized in that: The computer-side detailed information processing software has the functions of monitoring system additions and deletions, data processing and report generation.

7. The single filling chamber-surrounding rock synchronous monitoring system and monitoring method according to claim 1, characterized in that: The underground data preprocessing device includes: ① an intelligent AI algorithm that can independently perform intelligent analysis on the monitoring data and send the information obtained from the analysis to the cloud; ② an instant alarm device that can issue an underground early warning in the first time to remind workers to evacuate when the information obtained from the analysis reaches a set level or an alarm information is received from the cloud feedback; ③ the device integrates the system with any connection assembly.

8. The single filling chamber-surrounding rock synchronous monitoring system and monitoring method according to claim 1, characterized in that: The synchronous monitoring system includes a "solid-liquid" collaborative monitoring device, which integrates a displacement monitoring device, a seepage pressure monitoring device, and a temperature monitoring device on the same rod through a connecting rod; the seepage pressure monitoring device is rigidly connected to the anchor head.

9. The single filling chamber-surrounding rock synchronous monitoring system and monitoring method according to claim 1, characterized in that: Four sets of mounting blocks are fixedly installed at the four corners of the back of the downhole data preprocessing device; a mounting plate is arranged at the rear of the downhole data processing device, and the mounting plate is integrated and installed on any connection assembly of the monitoring system, mounting grooves are provided on the left and right sides above the mounting plate, and mounting holes are provided on the left and right sides below the mounting plate, and the mounting blocks and the mounting plate are fastened to each other by fasteners.

Images