Comprehensive monitoring station capable of observing mine ground pressure of coal mine tunnel

Abstract

The invention relates to a comprehensive monitoring station capable of observing mine ground pressure of a coal mine tunnel, and belongs to the technical field of coal mine tunnel pressure display observation. The comprehensive monitoring station comprises a measuring part and a sensor part, the measuring part comprises a mine pressure monitor, the mine pressure monitor is provided with a plurality of sensor access ports, the sensing part comprises a plurality of sensors, and the plurality of sensors are respectively connected with the sensor access ports of the mine pressure monitor through signal transmission lines. The mine pressure monitor is connected with the upper computer in a wired transmission or wireless transmission mode and transmits monitoring signals to the upper computer. The comprehensive monitoring station is in butt joint with eight sets of sensors for roadway monitoring at a time, application is convenient, measuring precision is high, and stability is good.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine tunnel pressure manifestation observation, and in particular to a comprehensive monitoring station capable of observing coal mine tunnel mine pressure. Background Art

[0002] In recent years, with the continuous development of coal mining technology, the rate of coal mining has increased significantly. Coal mining is often in a strong ground stress field. The surrounding rock stress of the coal mining tunnel may change at any time, causing safety accidents such as tunnel roof collapse. Therefore, it is particularly important to monitor the changes in surrounding rock stress in coal mine tunnels in real time. At present, the types of stress monitors used to monitor the changes in surrounding rock stress in tunnels are relatively single. Most of them use a single roof displacement monitor or a borehole stress gauge for stress monitoring. However, the stress changes in coal mine tunnels may come from multiple directions. The monitoring effect of the existing tunnel monitoring system is limited, and the reliability of accident warning is not ideal. Summary of the invention

[0003] In order to solve the problems in the prior art, the present invention patent designs a comprehensive monitoring station capable of observing the mine pressure in coal mine tunnels, so as to solve the problem that the existing monitoring effect of stress changes in surrounding rock of coal mine tunnels is not ideal.

[0004] The technical solution adopted by the present invention is: the integrated monitoring station includes a measuring part and a sensor part, the measuring part includes a mine pressure monitor, the mine pressure monitor is provided with multiple sensor access ports, the sensing part includes multiple sensors, and the multiple sensors are respectively connected to the sensor access ports of the mine pressure monitor through signal transmission lines, and the mine pressure monitor is connected to a host computer through wired transmission or wireless transmission to transmit monitoring signals to the host computer.

[0005] Furthermore, the mine pressure monitor includes a casing, in which a power module, a control circuit board, a display module, a data transmission module and an sound and light alarm module are assembled. The power module, the display module, the data transmission module and the sound and light alarm module are all electrically connected to the control circuit board. The display module has a display window exposed on the front side of the casing, and a layer of transparent explosion-proof plate is sealed on the outside of the display window.

[0006] Furthermore, the control circuit board is integrated with 8 groups of sensor access ports, which are arranged in sequence and exposed from the bottom of the housing. The external connection end of the sensor access port adopts a waterproof aviation socket.

[0007] Furthermore, the sensor unit includes 8 groups of sensors, namely, an anchor stress sensor, an anchor cable stress sensor, a two-point separation sensor, a three-point separation sensor, a four-point separation sensor, a laser sensor, a drilling stress sensor and a top and bottom plate movement sensor. The 8 groups of sensors are respectively connected to 8 groups of sensor access ports of the mine pressure monitor through explosion-proof cables.

[0008] Furthermore, the sensor unit includes 8 groups of sensors, and the types of the 8 groups of sensors and the plugging order of the 8 groups of sensors with the 8 groups of sensor access ports of the mine pressure detector can be flexibly configured according to the actual measurement needs, so that the integrated monitoring station can better adapt to the needs of the site.

[0009] Furthermore, the data transmission module of the mine pressure monitor includes a wired transmission unit and a wireless transmission unit. The wired transmission unit is provided with a transmission interface on the side of the casing, and the wireless transmission unit is provided with an antenna on the side of the casing.

[0010] Furthermore, the anchor stress sensor is installed at the end of the anchor at the waistline position of the side wall of the tunnel to measure the end stress of the anchor; the anchor cable stress sensor is installed at the end of the anchor cable in the middle of the tunnel roof to measure the end stress of the anchor cable; the two-point separation sensor, three-point separation sensor, and four-point separation sensor are respectively installed at the centerline position of the tunnel roof to measure the displacement of the deep rock layer in the roof; the laser sensor is installed on the two sides of the tunnel close to the roof to measure the displacement of the tunnel surface; the drilling stress sensor is installed on the two sides of the tunnel close to the bottom plate to measure the stress changes in the deep rock layers on both sides, and the top and bottom plate proximity sensor is installed on the top plate of the tunnel close to the inner wall to measure the position change law between the top plate and the bottom plate.

[0011] Compared with the prior art, the invention patent design of a comprehensive monitoring station capable of observing the mine pressure in coal mine tunnels has the following advantages: The mine pressure monitor used in the comprehensive monitoring station disclosed in the present invention integrates 8 groups of sensor interfaces, can simultaneously receive monitoring signal data from 8 groups of sensors, has a wide monitoring range, and is more ideal for monitoring applications; The comprehensive monitoring station disclosed in the present invention uses 8 different monitoring sensors to monitor the stress changes of surrounding rocks at various locations in the tunnel. The monitoring data is more comprehensive, providing multiple guarantees for the accuracy and reliability of the monitoring process, and can timely detect changes in the tunnel from different angles. The mine pressure monitor used in the comprehensive monitoring station disclosed in the present invention is an intrinsically safe explosion-proof product that meets the requirements of the complex underground use environment; it integrates an audible and visual alarm module, which can promptly issue an alarm when a dangerous situation is detected, reminding operators to respond in time; the mine pressure monitor also integrates a wireless transmission unit, which makes installation and application more flexible.

[0012] The mine pressure monitor used in the comprehensive monitoring station disclosed in the present invention integrates 8 groups of sensor interfaces, which can be flexibly set according to the configuration of the actual measurement sensors, so that the monitoring station can better adapt to the needs of the site. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a comprehensive monitoring station capable of observing mine pressure in coal mine tunnels. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present invention are clearly and completely described, and the described embodiments are only embodiments of a part of the present invention, not all of them. 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.

[0015] like Figure 1 As shown, the patent of the present invention designs an embodiment of a comprehensive monitoring station capable of observing the mine pressure in a coal mine tunnel. In this embodiment, the comprehensive monitoring station includes a measuring part and a sensor part. The measuring part includes a mine pressure monitor. The mine pressure monitor includes an intrinsically safe explosion-proof housing. A power module, a control circuit board, a display module, a data transmission module and an audible and visual alarm module are assembled in the housing. The power module, the display module, the data transmission module and the audible and visual alarm module are all electrically connected to the control circuit board. The power module of the mine pressure monitor is provided with a battery and an external power supply at the same time. The battery is integrally encapsulated in the housing. The external power supply is exposed with a waterproof socket on the side of the housing for connecting an external power supply. The display module is exposed with a display window on the front of the housing, and a layer of transparent explosion-proof plate is sealed outside the display window. The data transmission module includes a wired transmission unit and a wireless transmission unit. The wired transmission unit is provided with a transmission interface on the side of the housing, using a 485 interface. The wireless transmission unit is provided with a communication antenna on the side of the housing. The mine pressure monitor can choose to connect to the host computer by wired transmission or wireless transmission to transmit monitoring signal data to the host computer.

[0016] The control circuit board of the mine pressure monitor is integrated with 8 groups of sensor access ports, which are arranged in sequence and exposed from the bottom of the casing. The external connection end of each sensor access port adopts a waterproof aviation socket for connecting to the serial port line of the sensor.

[0017] The socket for connecting the sensor under the mine pressure monitor can be flexibly configured according to the actual installation requirements of the sensor, so that the mine pressure monitor can be adapted to various places where detection is required.

[0018] The sensor section of the integrated monitoring station includes 8 groups of sensors, namely, anchor stress sensor, anchor cable stress sensor, two-point separation sensor, three-point separation sensor, four-point separation sensor, laser sensor, borehole stress sensor and top and bottom plate displacement sensor. The 8 groups of sensors are connected to the aviation sockets of the 8 groups of sensor access ports on the mine pressure monitor through explosion-proof cables. Among them, the anchor stress sensor is installed at the end of the anchor at the waistline position of the side wall of the tunnel to measure the end stress of the anchor. The anchor cable stress sensor is installed at the end of the anchor cable in the middle of the tunnel roof to measure the end stress of the anchor cable. The two-point separation sensor, three-point separation sensor and four-point separation sensor are installed at the center line of the tunnel roof to measure the displacement of the deep rock layer of the roof. The laser sensor is installed at the position close to the top plate on both sides of the tunnel to measure the displacement of the tunnel surface. The borehole stress sensor is installed at the position close to the bottom plate on both sides of the tunnel to measure the stress changes in the deep rock layer on both sides. The top and bottom plate proximity sensor is installed on the top plate of the tunnel near the inner wall to measure the position change pattern between the top plate and the bottom plate.

[0019] When the integrated monitoring station capable of observing the mine pressure in the coal mine tunnel disclosed in the patent of the present invention is used, 8 groups of sensors are installed and set according to their respective monitoring targets, and connected to 8 sensor access ports of the mine pressure monitor. The mine pressure monitor is connected to the host computer by the required connection method, the working parameters of the mine pressure monitor are set by the host computer, the data limit of the mine pressure monitor to start the sound and light alarm is set, and the monitoring signal data transmitted by the mine pressure monitor is received in real time.

[0020] The above contents are only preferred embodiments of the present invention and cannot be used to limit the scope of implementation of the present invention. That is, any simple equivalent changes and modifications made according to the claims and description of the present invention are still within the scope of the present invention.

Claims

1. A comprehensive monitoring station capable of observing the mine pressure in coal mine tunnels, characterized in that: The integrated monitoring station includes a measuring part and a sensor part. The measuring part includes a mine pressure monitor. The mine pressure monitor is provided with a plurality of sensor access ports. The sensing part includes a plurality of sensors. The plurality of sensors are respectively connected to the sensor access ports of the mine pressure monitor through signal transmission lines. The mine pressure monitor is connected to a host computer through wired transmission or wireless transmission to transmit monitoring signals to the host computer.

2. A comprehensive monitoring station capable of observing mine pressure in coal mine tunnels according to claim 1, characterized in that: The mine pressure monitor includes a casing, in which a power module, a control circuit board, a display module, a data transmission module and an audible and visual alarm module are assembled. The power module, the display module, the data transmission module and the audible and visual alarm module are all electrically connected to the control circuit board. The display module has a display window exposed on the front side of the casing, and a layer of transparent explosion-proof plate is sealed on the outside of the display window.

3. A comprehensive monitoring station capable of observing mine pressure in coal mine tunnels according to claim 2, characterized in that: The control circuit board is integrated with 8 groups of sensor access ports, which are arranged in sequence and exposed from the bottom of the housing. The external connection ends of the sensor access ports are waterproof aviation sockets.

4. A comprehensive monitoring station capable of observing mine pressure in coal mine tunnels according to claim 3, characterized in that: The sensor unit includes 8 groups of sensors, namely, an anchor stress sensor, an anchor cable stress sensor, a two-point separation sensor, a three-point separation sensor, a four-point separation sensor, a laser sensor, a drilling stress sensor and a top and bottom plate movement sensor. The 8 groups of sensors are respectively connected to 8 groups of sensor access ports of the mine pressure monitor through explosion-proof cables.

5. A comprehensive monitoring station capable of observing mine pressure in coal mine tunnels according to claim 3, characterized in that: The sensor unit includes 8 groups of sensors. The types of the 8 groups of sensors and the plugging order of the 8 groups of sensors with the 8 groups of sensor access ports of the mine pressure detector can be flexibly configured according to the actual measurement needs, so that the comprehensive monitoring station can better meet the needs of the site.

6. A comprehensive monitoring station capable of observing mine pressure in coal mine tunnels according to claim 4, characterized in that: The data transmission module of the mine pressure monitor includes a wired transmission unit and a wireless transmission unit. The wired transmission unit is provided with a transmission interface on the side of the casing, and the wireless transmission unit is provided with an antenna on the side of the casing.

7. A comprehensive monitoring station capable of observing mine pressure in coal mine tunnels according to claim 6, characterized in that: The anchor stress sensor is installed at the end of the anchor at the waistline position of the side wall of the tunnel to measure the end stress of the anchor; the anchor cable stress sensor is installed at the end of the anchor cable in the middle of the tunnel roof to measure the end stress of the anchor cable; the two-point separation sensor, three-point separation sensor, and four-point separation sensor are respectively installed at the center line position of the tunnel roof to measure the displacement of the rock layer deep in the roof; the laser sensor is installed at the positions of the two sides of the tunnel close to the roof to measure the displacement of the tunnel surface; the drilling stress sensor is installed at the positions of the two sides of the tunnel close to the bottom plate to measure the stress changes in the deep rock layers on both sides, and the top and bottom plate displacement sensor is installed at the position of the tunnel roof close to the inner wall to measure the position change law between the top plate and the bottom plate.

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