A device for monitoring displacement of deep rock strata of a slope of an open-pit coal mine and a method of use

Abstract

The application discloses an open-pit coal mine slope deep rock stratum displacement monitoring device and a use method thereof, which comprises a sensor mechanism and a lifting mechanism; the sensor mechanism comprises a sensor data collector, a mounting rod and side edge pulleys, the sensor data collector is installed at the end of the mounting rod, the side walls of the mounting rod are symmetrically provided with the side edge pulleys, and the mounting rod is connected with the lifting mechanism through wires. The slope deep rock displacement automatic monitoring device can be used for online monitoring, does not need manual cost, can be flexibly arranged in dangerous areas such as landslides, can be used for real-time monitoring, data acquisition and transmission are no longer affected by weather conditions, when the slope appears deformation, real-time monitoring can be conducted on deep deformation data, the understanding of on-site deformation conditions by treatment personnel is further facilitated, a basis is provided for formulating specific treatment measures in the next step, and work efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of coal mine monitoring and protection technology, specifically to a device for monitoring the displacement of deep rock strata on open-pit coal mine slopes and its usage method. Background Technology

[0002] In open-pit coal mining operations, slopes pose significant risks of spalling and landslides. To ensure personnel and operational safety, when slope deformation or landslide signs appear, deep rock movement monitoring devices must be deployed to monitor internal slope displacement and the layer distribution of potential slip surfaces.

[0003] Traditional slope monitoring devices lack an automatic monitoring mechanism. After slope deformation occurs, manual on-site measurement is often required. Moreover, due to weather and terrain conditions, some monitoring cannot be carried out immediately, which affects the mine personnel's understanding of the situation on site. Traditional deep rock strata movement monitoring devices often require two or more people to work together, with one person responsible for lifting the equipment and another person responsible for recording data. Furthermore, when landslide signs appear on the slope, the entry of personnel into the site greatly increases the risk of landslides and easily leads to safety hazards. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention aims to provide a device and method for monitoring the displacement of deep rock strata in open-pit coal mine slopes, so as to automatically and in real-time monitor the displacement of deep rock strata in open-pit coal mine slopes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a deep rock strata displacement monitoring device for open-pit coal mine slopes, comprising a sensor mechanism and a lifting mechanism; the sensor mechanism includes a sensor data collector, a mounting rod, and side pulleys, the sensor data collector being mounted on the end of the mounting rod, side pulleys being symmetrically mounted on the sidewalls of the mounting rod, and the mounting rod being connected to the lifting mechanism via wiring.

[0006] Based on the above-described device, the present invention also provides the following technical solution:

[0007] First, a monitoring hole is constructed at the slope. Then, a clinometer tube is placed inside the monitoring hole. Next, the entire sensor mechanism is placed inside the clinometer tube. Then, a side pulley fixed on the side wall of the mounting rod is used to cooperate with the slide rail on the inner wall of the clinometer tube, so that the sensor mechanism can be lifted into the monitoring hole along the clinometer tube by the control of the lifting mechanism. During the process, the sensor data collector set at the end of the mounting rod is used to collect the horizontal increment at different positions of the monitoring hole, which is the horizontal displacement increment of the rock layer inside the slope.

[0008] The sensor data collector transmits data to the inclinometer, measuring the tilt change segment by segment to obtain the horizontal displacement increment of each segment of the inclinometer tube. The calculation formula is as follows:

[0009] ;

[0010] In the formula: L represents the horizontal displacement increment of each segment of the inclinometer tube; L is the cross-sectional width of the sensor data collector. To determine the inclination angle at a specific depth within the inclinometer tube, the horizontal displacement at the tube opening and at different depths is measured by observing the changes in readings at corresponding locations within the tube over different time periods. ,Right now:

[0011] ;

[0012] Assuming the bottom of the inclinometer tube is considered a stationary point due to sufficient burial depth or penetration into a hard layer, the measured displacement at the top of the tube... This represents the absolute horizontal displacement at that location.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The automatic monitoring device for deep rock movement on slopes can perform online monitoring without the need for manual labor. It can be flexibly deployed in dangerous areas such as landslides for real-time monitoring. Data collection and transmission are no longer affected by weather conditions. When slope deformation occurs, deep deformation data can be monitored in real time, which further facilitates the understanding of the deformation situation on site by the management personnel and provides a basis for the next step of formulating specific management measures, thereby improving work efficiency.

[0015] This device is powered by solar panels and stores energy in batteries to drive a motor, enabling the monitoring of internal slope displacement. This system not only effectively reduces labor costs but also ensures real-time and continuous monitoring, allowing it to be activated as needed. Furthermore, when landslide signs appear, the device can autonomously complete monitoring without requiring personnel to enter the danger zone, thus completely eliminating related safety hazards. Currently, existing monitoring methods largely rely on manual operation, involving inserting deep rock movement sensors into inclinometer holes and then pulling them up segment by segment, recording data in 1-meter increments. This method is not only time-consuming but also susceptible to external weather conditions, resulting in long-standing technical challenges for monitoring deep rock movement on open-pit coal mine slopes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the deep rock strata displacement monitoring device for open-pit coal mine slopes according to the present invention.

[0017] Figure 2 This is a schematic diagram of the sensor mechanism of the present invention.

[0018] 1. Solar panel; 2. Sensor mechanism; 201. Sensor data collector; 202. Mounting rod; 203. Side pulley; 204. Wiring; 3. Large lifting wheel; 4. Small lifting wheel; 5. Battery; 6. Lifting motor; 7. Protective cover. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-2 The present invention provides a technical solution: a deep rock stratum displacement monitoring device for open-pit coal mine slopes, comprising: a sensor mechanism 2 and a lifting mechanism, the lifting mechanism comprising: a large lifting wheel 3, a small lifting wheel 4 and a lifting motor 6, wherein the large lifting wheel 3 and the small lifting wheel 4 mesh with each other, and the output end of the lifting motor 6 cooperates with the small lifting wheel 4.

[0021] The sensor mechanism 2 includes a sensor data collector 201, a mounting rod 202, and side pulleys 203. The sensor data collector 201 is installed at the end of the mounting rod 202 and collects data during the process of penetrating to the bottom of the hole. The side pulleys 203 are symmetrically installed on the side wall of the mounting rod 202 to ensure the smoothness of the penetrating process.

[0022] The mounting rod 202 is connected to the lifting wheel 3 via a wiring 204. The outer circumference of the lifting wheel 3 has a groove, and the wiring 204 is placed inside the groove.

[0023] The motor 6 consists of a motor spindle, a motor body, motor end covers, and a motor base. The motor spindle rotates during motor operation, driving the lifting wheel 4. The motor end cover's core function is to support the rotor shaft, maintain the clearance between the stator and rotor, protect internal components from external contamination, and fix the overall motor structure. The motor base, made of aluminum alloy, supports, fixes, and protects the internal structure. The motor body primarily generates a magnetic field to ensure normal motor operation.

[0024] It also includes a solar panel 1, a battery 5, and a protective cover 7. The large lifting wheel 3, the small lifting wheel 4, the battery 5, and the lifting motor 6 are all housed inside the protective cover 7. The solar panel 1 is mounted on the protective cover 7 and is electrically connected to the battery 5. The battery 5 is electrically connected to the lifting motor 6.

[0025] The storage battery 5 consists of the positive terminal (a lead-based grid filled with lead dioxide), the negative terminal (a lead-based grid filled with spongy lead), the protective cover, and the main body of the storage battery.

[0026] Based on the above-described detection device, the present invention also provides a method of using it, comprising the following:

[0027] First, a monitoring hole is constructed at the slope. Then, a clinometer tube is placed inside the monitoring hole. Next, the entire sensor mechanism 2 is placed inside the clinometer tube. The inner wall of the clinometer tube has four sliding tracks. Then, a side pulley 203 fixed on the side wall of the mounting rod 202 is used to cooperate with the sliding tracks on the inner wall of the clinometer tube so that the sensor mechanism 2 can be extended into the monitoring hole along the clinometer tube by the control of the lifting mechanism. During the process, the sensor data collector 201 set at the end of the mounting rod 202 is used to collect the horizontal increment at different positions of the monitoring hole, that is, the horizontal displacement increment of the rock layer inside the slope.

[0028] Finally, the sensor data collector 201 transmits the collected data to the inclinometer. By measuring the tilt change of the detection hole segment by segment, the horizontal displacement increment of each segment of the inclinometer tube is obtained. The calculation formula is as follows:

[0029] ;

[0030] In the formula: L represents the horizontal displacement increment of each segment of the inclinometer tube; L is the cross-sectional width of the sensor data collector 201. To measure the inclination angle of a certain depth in a clinometer, the changes in readings at corresponding positions within the clinometer and the cumulative depth changes are observed over different time periods. This allows for the measurement of the horizontal displacement at the clinometer opening and at different depths. ,Right now:

[0031] ;

[0032] Assuming the bottom of the inclinometer tube is considered a stationary point due to sufficient burial depth or penetration into a hard layer, the measured displacement at the top of the tube... This represents the absolute horizontal displacement at that location.

[0033] During data processing, the horizontal deviations at each depth relative to the bottom of the borehole are accumulated, and a curve is plotted with the bottom of the borehole as the starting point. This curve is the displacement envelope relative to the initial observation benchmark, and its shape directly represents the cumulative horizontal displacement of the rock mass inside the slope during the interval between two observations.

[0034] Working principle: From Figure 1It is known that the entire deep rock movement automatic monitoring device is powered by solar panel 1 for a long time. Solar panel 1 is connected to the protective cover shell 7 by angle steel. The internal structure is connected to the battery 5 inside the protective cover shell 7 by cable for energy storage. The entire device is powered by battery 5 to ensure normal operation. Lifting motor 6 is responsible for power transmission. It first drives the small lifting wheel 4 to work, and then drives the large lifting wheel 5 to work. Sensor mechanism 2 is connected to large lifting wheel 5 through wiring 204. Large lifting wheel 5 controls the sensor data collector 201 to enter the borehole to a specific height, thereby obtaining slope rock movement data.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for monitoring the displacement of deep rock strata on an open-pit coal mine slope, characterized in that: Includes a sensor mechanism (2) and a lifting mechanism; The sensor mechanism (2) includes a sensor data collector (201), a mounting rod (202), and side pulleys (203). The sensor data collector (201) is mounted on the end of the mounting rod (202). Side pulleys (203) are symmetrically mounted on the side wall of the mounting rod (202). The mounting rod (202) is connected to the lifting mechanism via a wiring (204).

2. The deep rock strata displacement monitoring device for open-pit coal mine slopes according to claim 1, characterized in that: The lifting mechanism includes a large lifting wheel (3), a small lifting wheel (4), and a lifting motor (6). The large lifting wheel (3) and the small lifting wheel (4) mesh with each other, and the output end of the lifting motor (6) cooperates with the small lifting wheel (4). The mounting rod (202) is connected to the lifting wheel (3) via a wiring (204). The outer circumference of the lifting wheel (3) is provided with a groove, and the wiring (204) is placed in the groove.

3. The deep rock strata displacement monitoring device for open-pit coal mine slopes according to claim 2, characterized in that: It also includes a solar panel (1), a battery (5) and a protective cover (7). The large lifting wheel (3), the small lifting wheel (4), the battery (5) and the lifting motor (6) are all located inside the protective cover (7). The solar panel (1) is installed on the protective cover (7) and is electrically connected to the battery (5).

4. The deep rock strata displacement monitoring device for open-pit coal mine slopes according to claim 3, characterized in that: The battery (5) is electrically connected to the lifting motor (6).

5. A method of use, implemented based on the deep rock strata displacement monitoring device for open-pit coal mine slopes as described in claim 1, characterized in that, Includes the following: First, a monitoring hole is constructed at the slope. Then, a clinometer tube is placed in the monitoring hole. The entire sensor mechanism (2) is then placed in the clinometer tube. Then, a side pulley (203) is fixedly set on the side wall of the mounting rod (202) and cooperates with the slide rail on the inner wall of the clinometer tube so that the sensor mechanism (2) can be extended into the monitoring hole along the clinometer tube by the control of the lifting mechanism. During the process, the sensor data collector (201) set at the end of the mounting rod (202) is used to collect the horizontal increment at different positions of the monitoring hole, which is the horizontal displacement increment of the rock layer inside the slope. The sensor data collector (201) transmits data to the inclinometer, measures the tilt change segment by segment, and obtains the horizontal displacement increment of each segment of the inclinometer tube. The calculation formula is as follows: ； In the formula: L represents the horizontal displacement increment of each segment of the inclinometer tube; L is the cross-sectional width of the sensor data collector (201). To measure the inclination angle of a certain depth in a clinometer, the changes in readings at corresponding positions within the clinometer and the cumulative depth changes are observed over different time periods. This allows for the measurement of the horizontal displacement at the clinometer opening and at different depths. ,Right now: ； Assuming the bottom of the inclinometer tube is considered a stationary point due to sufficient burial depth or penetration into a hard layer, the measured displacement at the top of the tube... This represents the absolute horizontal displacement at that location.

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