Slope surface layer detection device and method for open-pit coal mine

Abstract

The present application relates to the field of slope safety detection, particularly to an open-pit coal mine slope detection device and method, in the first step, the two end anchor holes of the slope assembly are fixed through anchor rods; in the second step, multiple earth-inserting members are inserted into the slope with different depths; in the third step, each earth-inserting member is individually fixed with the rotating member of the slope assembly; in the fourth step, the pressure sensor of the alarm system is fixed on the slope member, and the alarm threshold of the pressure sensor and the rotating member is set. The small displacement sliding of the slope surface layer is monitored.

Description

Technical Field

[0001] This invention relates to the field of slope safety detection, and particularly to a device and method for detecting slopes in open-pit coal mines. Background Technology

[0002] The stepped mining method in open-pit coal mines is a scheme used when mining relatively deep coal seams; there are slopes between adjacent steps; slope landslides are a key aspect of production safety that needs to be monitored.

[0003] Small displacements on slopes are often a precursor to slope collapses; detecting small displacements usually allows for early intervention or prevention of slope collapse accidents. Summary of the Invention

[0004] This invention provides an open-pit coal mine slope detection device and its usage method, and aims to solve the technical problem of how to monitor small displacements of the slope surface.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0006] The surface inspection device for open-pit coal mine slopes includes a slope-prone component, a flange, and a rotating component.

[0007] The ramp fitting is used to be laid flat on the slope; multiple flanges are arranged along the length of the ramp fitting, and multiple flanges are located on the same side of the ramp fitting.

[0008] One end of the rotating component is connected to the flange, and the plane on which the rotating component rotates is parallel to the slope surface; the rotating component is located on the side of the slope-prone component away from the slope; multiple insert components penetrate the slope to varying depths; the insert components are used to insert into the slope, and the insert components are located on the side of the slope-prone component away from the flange; each rotating component is fixedly connected to an independent insert component.

[0009] The pressure sensor is directly or indirectly defined by the slope-penetrating component, and each rotating component is equipped with a pressure sensor; the detection end of the pressure sensor points to the rotating component; when the slope surface slides down, the soil-penetrating component is driven by the downward sliding surface, thereby the detection end of the pressure sensor is squeezed by the rotating component.

[0010] The pressure sensor is connected to the controller via an analog-to-digital converter. Upon receiving the pressure signal, the controller activates the alarm.

[0011] Furthermore, in the preset state, the distance between the detection end of the pressure sensor and the rotating part is the alarm threshold; the alarm threshold is between 2-5mm.

[0012] Furthermore, the soil-inserting component includes a connecting plate and a soil-inserting shovel; the connecting plate is fixedly installed on the outer wall of the soil-inserting shovel, and the connecting plate is used to fixally connect to the rotating component by screws and nuts; the soil-inserting end of the soil-inserting shovel is a pointed tip.

[0013] Furthermore, a cover plate is fixedly installed on the upper side of the soil-inserting component, and a handle is fixedly installed on the upper side of the cover plate.

[0014] Furthermore, the pressure sensor, analog-to-digital converter, controller, and alarm unit together form an alarm system.

[0015] Methods for detecting the surface layer of slopes in open-pit coal mines.

[0016] The first step is to fix the anchor holes at both ends of the ramp assembly with anchor rods;

[0017] The second step is to insert multiple soil-inserting components into the slope at different depths;

[0018] The third step is to fix each soil-inserting component individually to the rotating part of the slope-diving assembly;

[0019] The fourth step is to fix the pressure sensor of the alarm system onto the ramp and set the alarm threshold for the pressure sensor and the rotating part.

[0020] The beneficial effects of this invention are as follows:

[0021] In use, the two ends of the slope-prone component 11 are fixed to the surface with long anchor rods; when the slope surface slides down, the soil-entry component 20 is driven by the downward sliding surface, so that the detection end of the pressure sensor 30 is squeezed by the rotating component 13; as soon as the detection end of the pressure sensor 30 is squeezed by the rotating component 13, the pressure sensor 30 transmits the squeeze signal to the controller, and the controller controls the alarm to sound after receiving the pressure signal; thus realizing the monitoring of the sliding of the slope surface. Attached Figure Description

[0022] Figure 1 A cross-sectional view of an existing open-pit coal mine using stepped mining methods;

[0023] Figure 2 This is a schematic diagram of the structure of this application;

[0024] Figure 3 This is a schematic diagram of the circuit structure of this application;

[0025] Figure 4 An improvement plan for the buried component 20;

[0026] Appendix Label Reference Table:

[0027] 10. Ramp assembly; 11. Ramp piece; 12. Flange; 13. Rotating part;

[0028] 20. Soil-inserting component; 21. Connecting plate; 22. Soil-inserting shovel; 23. Cover plate; 24. Handle;

[0029] Pressure sensor 30; Detailed Implementation

[0030] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0031] To make the content of this invention easier to understand, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] like Figures 1 to 2 As shown, this is a surface detection device for open-pit coal mine slopes.

[0033] The ramp assembly 10 includes a ramp component 11, a flange 12, and a rotating component 13;

[0034] The ramp piece 11 is used to be attached to the slope; multiple flanges 12 are arranged along the length of the ramp piece 11, and the multiple flanges 12 are located on the same side of the ramp piece 11.

[0035] One end of the rotating part 13 is connected to the flange 12, and the plane on which the rotating part 13 rotates is parallel to the slope surface; and the rotating part 13 is located on the side of the slope-lying part 11 away from the slope; multiple soil-inserting parts 20 penetrate into the slope to different depths; the soil-inserting parts 20 are used to insert into the slope, and the soil-inserting parts 20 are located on the side of the slope-lying part 11 away from the flange 12; each rotating part 13 is fixedly connected to an independent soil-inserting part 20.

[0036] The pressure sensor 30 is directly or indirectly defined by the slope-prone component 11, and each rotating component 13 is equipped with a pressure sensor 30; the detection end of the pressure sensor 30 points to the rotating component 13; when the slope surface slides down, the soil-entry component 20 is driven by the downward sliding surface, so that the detection end of the pressure sensor 30 is squeezed by the rotating component 13.

[0037] The pressure sensor 30 is connected to the controller via an analog-to-digital converter. After receiving the pressure signal, the controller controls the alarm to sound. As long as the detection end of the pressure sensor 30 is squeezed by the rotating part 13, the pressure sensor 30 transmits the squeezing signal to the controller. After receiving the pressure signal, the controller controls the alarm to sound.

[0038] In summary, during use, the anchor holes at both ends of the slope-prone component 11 are fixed to the surface with long anchor rods; when the slope surface slides down, the soil-entry component 20 is driven by the downward sliding surface, thereby the detection end of the pressure sensor 30 is squeezed by the rotating component 13; as soon as the detection end of the pressure sensor 30 is squeezed by the rotating component 13, the pressure sensor 30 transmits the squeeze signal to the controller, and the controller controls the alarm to sound after receiving the pressure signal; thus realizing the monitoring of small displacement sliding of the slope surface.

[0039] It is noteworthy that even if a minor landslide occurs on the surface of the area where the detection device is located, such as a movement of 2cm, because the multiple soil-inserting components 20 extend into the slope to varying depths, one of the soil-inserting components 20 will always shift. This shift can trigger the pressure sensor 30, thus causing an alarm. Small overall displacement is often a prelude to slope collapse; detecting small displacements generally allows for early intervention or prevention of slope collapse accidents.

[0040] Furthermore, in the preset state, the distance between the detection end of the pressure sensor 30 and the rotating part 13 is the alarm threshold; this alarm threshold also indicates the sensitivity of the alarm; the smaller the alarm threshold is set, the smaller the displacement of the slope can be detected; preferably, the alarm threshold is between 2-5mm.

[0041] Furthermore, the soil-inserting component 20 includes a connecting plate 21 and a soil-inserting shovel 22; the connecting plate 21 is fixedly installed on the outer side wall of the soil-inserting shovel 22, and the connecting plate 21 is used to fixally connect with the rotating component 13 by screws and nuts; the soil-inserting end of the soil-inserting shovel 22 is a pointed tip.

[0042] Furthermore, a cover plate 23 is fixedly installed on the upper side of the soil-inserting component 20, and a handle 24 is fixedly installed on the upper side of the cover plate 23.

[0043] Furthermore, the pressure sensor 30, analog-to-digital converter, controller, and alarm unit together form an alarm system.

[0044] The method for surface detection of open-pit coal mine slopes includes the following steps.

[0045] The first step is to fix the anchor holes at both ends of the ramp assembly 10 with anchor rods;

[0046] The second step is to insert multiple soil-inserting components 20 into the slope at different depths;

[0047] The third step is to fix each soil-inserting component 20 individually to the rotating component 13 of the slope-prone assembly 10;

[0048] The fourth step is to fix the pressure sensor 30 of the alarm system onto the ramp 11 and set the alarm threshold for the pressure sensor 30 and the rotating part 13.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A surface detection device for open-pit coal mine slopes, characterized in that, The ramp assembly includes ramp components, flanges, and rotating components; The ramp fitting is used to be laid flat on the slope; multiple flanges are arranged along the length of the ramp fitting, and multiple flanges are located on the same side of the ramp fitting. One end of the rotating component is connected to the flange, and the plane of rotation of the rotating component is parallel to the slope surface; the rotating component is located on the side of the slope-lying component away from the slope; multiple insertion components penetrate the slope to varying depths; the insertion components are used to insert into the slope, and the insertion components are located on the side of the slope-lying component away from the flange; each rotating component is fixedly connected to an independent insertion component. The pressure sensor is directly or indirectly connected to the ramp component, and each rotating component is equipped with a pressure sensor. The detection end of the pressure sensor points towards the rotating component; When the surface layer of the slope slides down, the embedded part is driven by the downward sliding surface layer, thereby the detection end of the pressure sensor is squeezed by the rotating part; The pressure sensor is connected to the controller via an analog-to-digital converter. After receiving the pressure signal, the controller activates the alarm. In the preset state, the distance between the detection end of the pressure sensor and the rotating part is the alarm threshold; the alarm threshold is between 2-5mm. The soil-insertion component includes a connecting plate and a soil-insertion shovel; the connecting plate is fixedly installed on the outer side wall of the soil-insertion shovel, and the connecting plate is used to fix the shovel to the rotating component by screws and nuts; the soil-insertion end of the soil-insertion shovel is a pointed tip; A pressure sensor, analog-to-digital converter, controller, and alarm unit together form an alarm system.

2. The surface detection device for open-pit coal mine slopes according to claim 1, characterized in that, A cover plate is fixedly installed on the upper side of the soil-inserting component, and a handle is fixedly installed on the upper side of the cover plate.

3. A method for detecting the surface layer of an open-pit coal mine slope based on the device described in claim 1 or 2, characterized in that, Includes the following steps, The first step is to fix the anchor holes at both ends of the ramp assembly with anchor rods; The second step is to insert multiple soil-inserting components into the slope at different depths; The third step is to fix each soil-inserting component individually to the rotating part of the slope-diving assembly; The fourth step is to fix the pressure sensor of the alarm system onto the ramp and set the alarm threshold for the distance between the pressure sensor and the rotating part.

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