Circumferential underground monitor

Abstract

The utility model discloses a circumference underground monitor, including the inductive body of cylindrical structure, the inductive body inside is equipped with annular cavity, one end is equipped with with annular cavity intercommunication's liquid inlet, is provided with pressure transmission pipeline on the liquid inlet, through pressure transmission pipeline injects liquid to the annular cavity of inductive body and keeps basic pressure, is provided with pressure sensor on pressure transmission pipeline, and pressure sensor is used for monitoring the liquid pressure in inductive body, still sets up temperature sensor and moisture sensor on inductive body, and temperature sensor and moisture sensor are used for monitoring the temperature and moisture information of stratum, and the stratum temperature of monitoring can correct the pressure change due to temperature change, the utility model discloses a cylindrical inductive body and monitors the geological stress change around the position of monitor, can carry out real -time monitoring to the environment such as coal mine, roadway, tunnel, water retaining dam, frozen soil layer, earthquake fracture zone of easy geological disaster, provides the specific data of underground geological change for human.

Description

Technical Field

[0001] This utility model relates to the field of underground monitoring technology, and in particular to a circumferential underground monitoring device. Background Technology

[0002] Geological disasters refer to catastrophic events caused by natural and human-induced geological processes that damage the ecological environment or alter geological structures. Common geological disasters include earthquakes, landslides, debris flows, ground subsidence, ground fissures, collapses, and coal and rock explosions. They occur suddenly, move rapidly, and have immense impact force, capable of instantly destroying bridge piers, houses, and roadbeds. They seriously threaten the lives and property of people in mountainous areas, water conservancy and hydropower projects, main highways (railways), oil and gas pipelines, and the general public, and damage the ecological environment of mountainous areas, causing enormous disasters worldwide.

[0003] Currently, to reduce losses caused by geological disasters, real-time displacement monitoring is conducted. Existing methods for monitoring deep displacement in geological disasters include the marker method, ground measurement method, and borehole tilting method. These methods infer the displacement of geological bodies by measuring their data. However, existing methods cannot monitor the displacement of geological disasters in real time; data can only be obtained through periodic measurements. This can lead to missing rapid displacements that occur within a short period. Furthermore, existing monitoring methods require significant manpower and resources for large-scale monitoring, resulting in low monitoring efficiency. Summary of the Invention

[0004] This utility model provides a circular underground monitoring device that can monitor in real time environments prone to geological disasters, such as coal mines, roadways, tunnels, dams, permafrost layers, landslides, debris flows, and earthquake fault zones. It provides specific data on underground geological changes and can offer first-hand data on geological stress changes around the monitoring device's location to the national earthquake monitoring network. The specific technical solution is as follows:

[0005] A circular underground monitoring device is characterized by comprising a cylindrical sensing element with an annular cavity inside. One end of the sensing element has a liquid inlet connected to the annular cavity. The liquid inlet is connected to a pressure control device via a pressure transmission pipeline. The pressure control device is connected to a hydraulic pump of a hydraulic cylinder. Liquid is injected into the annular cavity of the sensing element through the pressure transmission pipeline to maintain a base pressure. A pressure sensor is installed on the pressure transmission pipeline to monitor the liquid pressure inside the sensing element and send the pressure information to a data acquisition unit. The sensing element also has a temperature sensor and a moisture sensor, which are connected to the data acquisition unit via temperature and moisture signal lines, respectively. The temperature and moisture sensors monitor the temperature and moisture information of the formation. The formation temperature monitored by the temperature sensor can correct for pressure changes caused by temperature variations, making the output pressure signal more accurate.

[0006] Furthermore, the annular cavity is arranged along the axial direction of the inductor, and both ends of the annular cavity are closed. A liquid inlet is provided at one end of the closed annular cavity, through which liquid enters the annular cavity.

[0007] Furthermore, the pressure sensor is connected to the data acquisition unit via a pressure signal line. When the outer wall of the sensor is squeezed by an external force, the liquid pressure in the annular cavity will change accordingly. Based on the pressure change of the liquid in the sensor, the potential for a disaster can be analyzed.

[0008] Furthermore, the injection port of the pressure control device is connected to the hydraulic pump of the hydraulic cylinder, and the outlet of the pressure control device is connected to the inlet of the sensor through a pressure transmission pipeline. The pressure control device is used to control the opening and closing of the pipeline and to regulate the supply pressure of the pipeline.

[0009] Furthermore, in the strata where monitoring is required, boreholes are drilled, and the monitor is installed along the axis of the borehole to a deep distance in the strata. The gap between the monitor and the borehole is solidified by grouting material, so that the monitor is tightly coupled with the strata and receives data on changes in geological stress around the location of the monitor through sensors.

[0010] Furthermore, the data acquisition device includes a housing, a circuit board disposed inside the housing, and a touch screen disposed on the surface of the housing. The circuit board is provided with a microprocessor, an A / D conversion module, a storage module, a display module, and a wireless network communication module. The A / D conversion module, storage module, display module, and wireless network communication module are respectively connected to the microprocessor via wires, and the display module is connected to the touch screen.

[0011] There are three A / D conversion modules, which operate independently. Each A / D conversion module independently acquires one sensor signal, converts it into a digital signal, and transmits it to the microprocessor for processing. The storage module stores the signal processed by the microprocessor, and the records in the storage module can be retrieved and displayed through the touch screen. The wireless network communication module can connect and send the signal processed by the microprocessor to external devices.

[0012] Furthermore, a power supply, which is a lithium battery, is also installed inside the casing. The power supply is connected to the microprocessor and provides power to the various units on the circuit board through the microprocessor.

[0013] This invention uses a cylindrical sensor to monitor changes in geological stress around the location of the monitoring device. It provides real-time monitoring of environments prone to geological disasters, such as coal mines, roadways, tunnels, dams, permafrost, landslides, debris flows, and earthquake fault zones, offering detailed data on underground geological changes. It can also provide firsthand data on geological stress changes around the monitoring device's location to the national earthquake monitoring network. Attached Figure Description

[0014] Figure 1 This is an assembly drawing of the circular underground monitoring device of this utility model;

[0015] Figure 2 This is a three-dimensional view of the circular underground monitoring device of this utility model;

[0016] Figure 3 This is a front view of the circular underground monitoring device of this utility model;

[0017] Figure 4 yes Figure 3 A cross-sectional view of surface AA;

[0018] Figure 5 yes Figure 4 Enlarged view of part A;

[0019] Figure 6 This is a structural block diagram of the data acquisition device of this utility model. Detailed Implementation

[0020] To better understand the purpose, function, and specific design of this utility model, the following description of the circumferential underground monitoring device is provided in further detail with reference to the accompanying drawings.

[0021] like Figures 1-5As shown, the circular underground monitoring device of this utility model includes a cylindrical sensor 11. The sensor 11 has an annular cavity 111 inside. One end of the sensor 11 has a liquid inlet 14 connected to the annular cavity 111. The liquid inlet 14 is connected to a pressure control device 3 via a pressure transmission pipeline 7. The pressure control device 3 is connected to a hydraulic pump of a hydraulic cylinder. Liquid is injected into the annular cavity 111 of the sensor 11 through the pressure transmission pipeline 7, maintaining a base pressure. A pressure sensor 2 is installed on the pressure transmission pipeline 7. The pressure sensor 2 monitors the liquid pressure inside the sensor 11 and sends the pressure information to a data acquisition unit 4. A temperature sensor 12 and a moisture sensor 13 are also installed on the sensor 11. The temperature sensor 12 and the moisture sensor 13 are connected to the data acquisition unit 4 via temperature signal lines 5 and moisture signal lines 6, respectively. The temperature sensor 12 and the moisture sensor 13 monitor the temperature and moisture information of the formation. The formation temperature monitored by the temperature sensor 12 can correct for pressure changes caused by temperature variations, making the output pressure signal more accurate. When used in coal mines, underground tunnels and roadways, the moisture sensor 13 can provide early warning of water inrush accidents when the groundwater level rises.

[0022] Specifically, such as Figures 3-5 As shown, the annular cavity 111 is arranged along the axial direction of the sensor 11. The two ends of the annular cavity 111 are closed. A liquid inlet 14 is provided at one end of the closed annular cavity 111, through which liquid enters the annular cavity 111.

[0023] like Figures 1-5 As shown, the pressure sensor 2 is connected to the data acquisition unit 4 through the pressure signal line 8. When the outer wall of the sensing body 11 is squeezed by an external force, the liquid pressure in the annular cavity 111 will change accordingly. The pressure change of the liquid in the sensing body 11 is used to analyze whether a disaster will occur.

[0024] The injection port of the pressure control device 3 is connected to the hydraulic pump of the hydraulic cylinder, and the outlet of the pressure control device 3 is connected to the inlet 14 of the sensor 11 through the pressure transmission pipeline 7. The pressure control device 3 is used to control the opening and closing of the pipeline 7 and to adjust the supply pressure of the pipeline 7.

[0025] like Figure 6 As shown, the data acquisition device 4 includes a housing, a circuit board disposed inside the housing, and a touch screen disposed on the surface of the housing. The circuit board is provided with a microprocessor, an A / D conversion module, a storage module, a display module, and a wireless network communication module. The A / D conversion module, the storage module, the display module, and the wireless network communication module are respectively connected to the microprocessor through wires, and the display module is connected to the touch screen.

[0026] There are three A / D conversion modules: one connected to a pressure sensor, one to a temperature sensor, and one to a moisture sensor. These three modules operate independently, acquiring signals from their respective sensors, converting them into digital signals, and transmitting them to a microprocessor for processing. A storage module stores the processed signals, which can be retrieved and displayed via a touchscreen. A wireless network communication module connects and transmits the processed signals to an external device, such as a mobile phone or computer.

[0027] The housing also houses a power supply, which is a lithium battery. The power supply is connected to the microprocessor and provides power to the various units on the circuit board through the microprocessor.

[0028] In use, a borehole is drilled in the stratum requiring monitoring, and the monitor is installed along the borehole axis to a deep depth within the stratum. The gap between the monitor and the borehole is filled with grout, ensuring tight coupling between the monitor and the stratum. The sensor receives data on changes in geological stress around the monitor's location. When geological pressure changes, the outer wall of the sensor is compressed, causing a change in the liquid pressure within the annular cavity 111. The data acquisition unit 4 analyzes the occurrence of a disaster based on the pressure changes within the sensor 11 and takes timely appropriate action.

[0029] This underground monitoring device uses a cylindrical sensor to monitor changes in geological stress around its location. It provides real-time monitoring of environments prone to geological disasters, such as coal mines, roadways, tunnels, dams, permafrost, landslides, debris flows, and earthquake fault zones, offering detailed data on underground geological changes. It can also provide the national earthquake monitoring network with firsthand data on geological stress changes around the monitoring device's location.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A circular underground monitoring device, characterized in that, The system includes a cylindrical sensor with an annular cavity inside. One end of the sensor has a liquid inlet connected to the annular cavity. The liquid inlet is connected to a pressure control device via a pressure transmission pipeline. The pressure control device is connected to a hydraulic pump of a hydraulic cylinder. Liquid is injected into the annular cavity of the sensor through the pressure transmission pipeline, maintaining a base pressure. A pressure sensor is installed on the pressure transmission pipeline to monitor the liquid pressure inside the sensor and send the pressure information to a data acquisition unit. The sensor also includes a temperature sensor and a moisture sensor, which are connected to the data acquisition unit via temperature and moisture signal lines, respectively. The temperature and moisture sensors monitor the temperature and moisture information of the formation. The formation temperature monitored by the temperature sensor can correct for pressure changes caused by temperature variations, making the output pressure signal more accurate.

2. The circumferential underground monitoring device according to claim 1, characterized in that, The annular cavity is arranged along the axial direction of the inductor, and both ends of the annular cavity are closed. A liquid inlet is provided at one end of the closed annular cavity, through which liquid enters the annular cavity.

3. The circumferential underground monitoring device according to claim 1, characterized in that, The pressure sensor is connected to the data acquisition unit via a pressure signal line. When the outer wall of the sensor is squeezed by an external force, the liquid pressure in the annular cavity will change accordingly. Based on the pressure change of the liquid in the sensor, the potential for a disaster can be analyzed.

4. The circumferential underground monitoring device according to claim 1, characterized in that, The injection port of the pressure control device is connected to the hydraulic pump of the hydraulic cylinder, and the outlet of the pressure control device is connected to the inlet of the sensor through a pressure transmission pipeline. The pressure control device is used to control the opening and closing of the pipeline and to regulate the supply pressure of the pipeline.

5. The circumferential underground monitoring device according to claim 1, characterized in that, Drill a borehole in the formation that needs to be monitored, and install the monitor along the axis of the borehole to a deep distance in the formation. The gap between the monitor and the borehole is solidified by grouting material, so that the monitor is tightly coupled with the formation. The monitor receives data on changes in geological stress around the location of the monitor through the sensor.

6. The circumferential underground monitoring device according to claim 1, characterized in that, The data acquisition device includes a housing, a circuit board disposed inside the housing, and a touch screen disposed on the surface of the housing. The circuit board is provided with a microprocessor, an A / D conversion module, a storage module, a display module, and a wireless network communication module. The A / D conversion module, the storage module, the display module, and the wireless network communication module are respectively connected to the microprocessor through wires, and the display module is connected to the touch screen. There are three A / D conversion modules, which operate independently. Each A / D conversion module independently acquires one sensor signal, converts it into a digital signal, and transmits it to the microprocessor for processing. The storage module stores the signal processed by the microprocessor, and the records in the storage module can be retrieved and displayed through the touch screen. The wireless network communication module can connect and send the signal processed by the microprocessor to external devices.

7. The circumferential underground monitoring device according to claim 6, characterized in that, The housing also houses a power supply, which is a lithium battery. The power supply is connected to the microprocessor and provides power to the various units on the circuit board through the microprocessor.

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