Filling mining stress monitoring and early warning device and method

Abstract

The invention discloses a filling mining stress monitoring and early warning device and method, and belongs to the technical field of stress monitoring, the filling mining stress monitoring and early warning device comprises a borehole stress monitoring host and a monitoring probe, the monitoring probe is arranged on one side of the borehole stress monitoring host, and a connecting wire is fixed to the center of the end of the monitoring probe; an adjusting rotating seat is fixed at the edge of one end surface of the drilling stress monitoring host; the depth control mechanism is arranged, and the monitoring probe is clamped on the arc-shaped fixed clamp and the arc-shaped movable clamp, so that the driven rack extending downwards can control the monitoring probe to extend into the stress test hole, and the conditions that force application is inconvenient and subsequent taking-out is difficult when the monitoring probe is embedded into the stress test hole due to the limited height are improved; the driven rack is meshed and matched with the driving gear, so that the monitoring probe can be flexibly controlled in the stress test hole, and the height of the monitoring probe can be kept in the stress test hole; and the vertically arranged driven rack enables the monitoring probe to ascend and descend in the vertical direction and to be consistent with the stress test hole in direction.

Description

Technical Field

[0001] The present invention belongs to the technical field of stress monitoring, and in particular relates to a filling mining stress monitoring and early warning device and method. Background Art

[0002] my country has rich coal resources and they are distributed over a wide area. During the mining process, stress redistribution will occur and mining stress will be generated. Accurately measuring the size and direction of mining stress is the prerequisite for selecting support methods and ensuring mining safety. Entering the 21st century, the world's shallow mineral resource mining has gradually dried up, and mineral resource mining at home and abroad has gradually turned to deep mining. The number of kilometer-deep mines has gradually increased. At present, deep mining activities are ahead of the basic theoretical research on deep mining. The basic theory specifically for deep resources has not been established. Therefore, the innovative development of deep rock mechanics and mining science theory is urgent. In the face of adversity, with the increase of mining depth, the ground stress level continues to increase, and the ratio of horizontal ground stress to vertical ground stress is different from that in the shallow part. After entering deep mining, while bearing high ground stress, most tunnels have to withstand the strong support stress caused by the huge mining space, which makes the stress of the tunnel surrounding rock affected by mining several times or even nearly ten times the original rock stress. Deep mining will also produce a strong unloading effect, causing strong disturbance to the tunnel and increasing the difficulty of support. Borehole stress meter, as a device that can obtain the distribution and change of stress in coal rock mass, is widely used.

[0003] At present, after opening a stress test hole in the area to be monitored, the borehole stress monitoring probe needs to be installed in the stress test hole. Due to the limited length of the probe, the monitoring probe needs to be pushed to the specified depth of the stress test hole using tools. Therefore, the installation and removal of the monitoring probe in the stress test hole are relatively cumbersome. In addition, in order to ensure the accuracy of stress monitoring, the depth and direction of the probe position need to be maintained. Traditionally, fixed probes are buried with filling slurry, which makes the subsequent removal of the monitoring probe more difficult. Summary of the invention

[0004] The object of the present invention is to provide a filling mining stress monitoring and early warning device and method to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filling mining stress monitoring and early warning device, comprising a drilling stress monitoring host and a monitoring probe, wherein the monitoring probe is arranged on one side of the drilling stress monitoring host, a connecting wire is fixed at the center of the end of the monitoring probe, an adjusting swivel is fixed at the edge of one end face of the drilling stress monitoring host, a retracting mechanism is arranged between the adjusting swivels, the retracting mechanism comprises a winding roller and a winding shaft, the winding roller is arranged between two adjusting swivels, the winding shaft is fixed at the centers of both ends of the winding roller, a depth control mechanism is arranged on one side of the winding roller, the depth control mechanism comprises a driving gear, a driven rack, an arc-shaped fixed clamp and an arc-shaped movable clamp, the driving gear is fixed on the winding shaft at one end of the winding roller, the lifting slider is meshedly connected to the driving gear, the arc-shaped fixed clamp is fixed on one side surface of the driven rack, and the arc-shaped movable clamp is arranged on one side of the arc-shaped fixed clamp.

[0006] It should be noted in the solution that a rotation receiving groove is formed through one side surface of the adjusting rotating seat, and the winding rotating shaft is rotatably connected in the rotation receiving groove of the adjusting rotating seat.

[0007] It is further worth noting that an adjusting hand wheel is fixed to one end of the winding shaft, and the driving gear is rotatably connected to the adjusting rotating seat.

[0008] It should be further explained that a lifting slot is provided on the outer surface of the adjusting swivel seat, a lifting slider is slidably connected in the lifting slot of the adjusting swivel seat, and one end of the lifting slider is fixed on a side surface of the driven rack.

[0009] As a preferred implementation, a first screw hole is formed on one side surface of the arc-shaped fixed clamp, and a second screw hole is formed on one side surface of the arc-shaped movable clamp.

[0010] As a preferred implementation, the first screw hole of the arc-shaped fixed clamp is aligned with the second screw hole of the arc-shaped movable clamp, and the internal threads of the first screw hole and the second screw hole are connected with locking bolts.

[0011] As a preferred embodiment, a clamping opening is provided between the arc-shaped fixed clamp and the arc-shaped movable clamp, an annular anti-slip groove is provided on the surface of the monitoring probe, and the arc-shaped fixed clamp and the arc-shaped movable clamp are adapted to the annular anti-slip groove of the monitoring probe.

[0012] As a preferred embodiment, a wire plug is fixed to one end of the connecting wire away from the monitoring probe, and the wire plug is engaged and connected with the drilling stress monitoring host. A display screen is provided at the front end of the drilling stress monitoring host, and a control button is provided on the front end surface of the drilling stress monitoring host below the display screen, and a lifting leg is fixed to the lower end surface of the drilling stress monitoring host.

[0013] A method for using a filling mining stress monitoring and early warning device comprises the following steps: S1. Select the drilling location and construct the drilling stress test hole in the area to be monitored; S2. Place the monitoring probe at the hole mouth. The driven rack extending downward can control the monitoring probe to extend into the stress test hole, thereby improving the situation that the monitoring probe is inconvenient to apply force when inserted into the stress test hole due to limited height and is difficult to remove afterwards; S3. The meshing match between the driven rack and the driving gear enables the monitoring probe to flexibly control and maintain its height in the stress test hole, and the vertically arranged driven rack enables the monitoring probe to be lifted and lowered in a vertical direction consistent with the direction of the stress test hole; S4. During the raising and lowering process of the monitoring probe, the winding roller keeps rotating and adjusting along with the raising and lowering of the driven rack, so that the connecting wire can be adaptively retracted and released during the raising and lowering process of the monitoring probe, thereby eliminating the interference of the connecting wire when the traditional monitoring probe is put into or taken out of the stress test hole.

[0014] In summary: during the lifting and lowering process of the monitoring probe, the winding roller keeps rotating and adjusting with the lifting and lowering of the driven rack, so that the connecting wire can be adaptively retracted and released during the lifting and lowering process of the monitoring probe, thereby eliminating the interference of the connecting wire when the traditional monitoring probe is placed in or pulled out of the stress test hole.

[0015] Compared with the prior art, the filling mining stress monitoring and early warning device and method provided by the present invention have at least the following beneficial effects: Through the depth control mechanism, the monitoring probe is clamped on the arc-shaped fixed clamp and the arc-shaped movable clamp, so that the downwardly extending driven rack can control the monitoring probe to extend into the stress test hole, thereby improving the situation that the monitoring probe is inconvenient to apply force when inserted into the stress test hole due to limited height and is difficult to remove subsequently. The meshing matching of the driven rack and the driving gear enables the monitoring probe to flexibly control and maintain its height in the stress test hole, and the vertically arranged driven rack enables the lifting of the monitoring probe to remain in a vertical direction and consistent with the direction of the stress test hole.

[0016] Through the setting of the retracting and releasing mechanism, during the raising and lowering process of the monitoring probe, the winding roller keeps rotating and adjusting along with the raising and lowering of the driven rack, so that the connecting wire can be adaptively retracted and released during the raising and lowering process of the monitoring probe, thereby eliminating the interference of the connecting wire when the traditional monitoring probe is put into or pulled out of the stress test hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 This is a three-dimensional diagram of the overall structure of a filling mining stress monitoring and early warning device and method of the present invention; Figure 2 A three-dimensional diagram of the monitoring probe structure of a filling mining stress monitoring and early warning device and method of the present invention; Figure 3 A three-dimensional diagram of a driven rack structure of a filling mining stress monitoring and early warning device and method of the present invention; Figure 4 A three-dimensional diagram of the arc-shaped fixing clamp structure of a filling mining stress monitoring and early warning device and method of the present invention; Figure 5 A filling mining stress monitoring and early warning device and method according to the present invention Figure 1 Enlarged view of point A in the middle; Figure 6 It is a stereoscopic diagram of the monitoring probe structure of a filling mining stress monitoring and early warning device and method of the present invention.

[0019] In the figure: 1. Drilling stress monitoring host; 2. Display screen; 3. Control button; 4. Lifting leg; 5. Wire plug; 6. Connecting wire; 7. Monitoring probe; 8. Adjusting swivel seat; 9. Winding roller; 10. Winding shaft; 11. Adjusting hand wheel; 12. Driving gear; 13. Driven rack; 14. Lifting slider; 15. Lifting slide; 16. Rotating groove; 17. Arc-shaped fixed clamp; 18. Arc-shaped movable clamp; 19. First screw hole; 20. Second screw hole; 21. Locking bolt; 22. Clamping opening; 23. Annular anti-slip groove. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] See also Figure 1-4The present invention provides a filling mining stress monitoring and early warning device, comprising a drilling stress monitoring host 1 and a monitoring probe 7, the monitoring probe 7 is arranged on one side of the drilling stress monitoring host 1, a connecting wire 6 is fixed at the center of the end of the monitoring probe 7, an adjusting swivel seat 8 is fixed at the edge of one end surface of the drilling stress monitoring host 1, a retracting mechanism is arranged between the adjusting swivel seats 8, the retracting mechanism comprises a winding roller 9 and a winding shaft 10, the winding roller 9 is arranged between two adjusting swivel seats 8, the winding shaft 10 is fixed at the centers of both ends of the winding roller 9, a depth control mechanism is arranged on one side of the winding roller 9, the depth control mechanism comprises a driving gear 12, a driven rack 13, an arc-shaped fixed clamp 17 and an arc-shaped movable clamp 18, the driving gear 12 is fixed on the winding shaft 10 at one end of the winding roller 9, a lifting slider 14 is meshed and connected to the driving gear 12, the arc-shaped fixed clamp 17 is fixed on one side surface of the driven rack 13, and the arc-shaped movable clamp 18 is arranged on one side of the arc-shaped fixed clamp 17.

[0022] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that a rotation receiving groove 16 is formed through one side surface of the adjusting rotating seat 8 , and the winding rotating shaft 10 is rotatably connected in the rotation receiving groove 16 of the adjusting rotating seat 8 .

[0023] Further as Figure 3 As shown, it is worth explaining in detail that an adjusting hand wheel 11 is fixed to one end of a winding shaft 10 , and a driving gear 12 is rotatably connected to the adjusting rotating seat 8 .

[0024] This scheme has the following working process: before use, the connecting wire 6 at one end of the monitoring probe 7 is wound on the winding roller 9. When the monitoring probe 7 is installed in the stress test hole, the winding roller 9 is controlled to rotate from the adjusting hand wheel 11 on the side of the adjusting swivel seat 8, so that the driving gear 12 drives the driven rack 13 meshing with it to move downward. Since the monitoring probe 7 is clamped on the arc-shaped fixed clamp 17 and the arc-shaped movable clamp 18, the driven rack 13 extending downward can control the monitoring probe 7 to extend into the stress test hole, thereby improving the situation that the monitoring probe 7 is inconvenient to apply force when it is inserted into the stress test hole due to limited height and is difficult to remove subsequently. The meshing matching of the driven rack 13 and the driving gear 12 enables the monitoring probe 7 to flexibly control and maintain its height in the stress test hole, and the vertically arranged driven rack 13 enables the lifting of the monitoring probe 7 to remain in a vertical direction and consistent with the direction of the stress test hole.

[0025] According to the above working process, it can be known that the monitoring probe 7 is clamped on the arc-shaped fixed clamp 17 and the arc-shaped movable clamp 18, so that the downwardly extending driven rack 13 can control the monitoring probe 7 to extend into the stress test hole, thereby improving the situation that the monitoring probe 7 is inconvenient to apply force when inserted into the stress test hole due to limited height and is difficult to remove subsequently. The meshing matching of the driven rack 13 and the driving gear 12 enables the monitoring probe 7 to flexibly control and maintain its height in the stress test hole, and the vertically arranged driven rack 13 enables the lifting of the monitoring probe 7 to remain in a vertical direction and consistent with the direction of the stress test hole.

[0026] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth specifically explaining that a lifting slot 15 is provided on the outer surface of the adjusting swivel seat 8, and a lifting slider 14 is slidably connected in the lifting slot 15 of the adjusting swivel seat 8, and one end of the lifting slider 14 is fixed on a side surface of the driven rack 13.

[0027] Further as Figure 4 As shown, it is worth to explain in detail that a first screw hole 19 is opened on one side surface of the arc-shaped fixed clamp 17 , and a second screw hole 20 is opened on one side surface of the arc-shaped movable clamp 18 .

[0028] Further as Figure 1 As shown, it is worth explaining in detail that the first screw hole 19 of the arc-shaped fixed clamp 17 is aligned with the second screw hole 20 of the arc-shaped movable clamp 18, and the internal threads of the first screw hole 19 and the second screw hole 20 are connected with a locking bolt 21.

[0029] Further as Figure 1 As shown, it is worth explaining in detail that a clamping opening 22 is provided between the arc-shaped fixed clamp 17 and the arc-shaped movable clamp 18, and an annular anti-slip groove 23 is provided on the surface of the monitoring probe 7, and the arc-shaped fixed clamp 17 and the arc-shaped movable clamp 18 are adapted to the annular anti-slip groove 23 of the monitoring probe 7.

[0030] Further as Figure 1 As shown, it is worth specifically explaining that a wire plug 5 is fixed to one end of the connecting wire 6 away from the monitoring probe 7, and the wire plug 5 is engaged and connected with the drilling stress monitoring host 1. A display screen 2 is provided at the front end of the drilling stress monitoring host 1, and a control button 3 is provided on the front end surface of the drilling stress monitoring host 1 below the display screen 2, and a lifting leg 4 is fixed to the lower end surface of the drilling stress monitoring host 1.

[0031] A method for using a filling mining stress monitoring and early warning device comprises the following steps: S1. Select the drilling location and construct the drilling stress test hole in the area to be monitored; S2. Place the monitoring probe 7 at the hole opening. The driven rack 13 extending downward can control the monitoring probe 7 to extend into the stress test hole, thereby improving the situation that the monitoring probe 7 is inconvenient to apply force when inserted into the stress test hole due to limited height and is difficult to remove afterwards; S3, the meshing match between the driven rack 13 and the driving gear 12 enables the monitoring probe 7 to flexibly control and maintain its height in the stress test hole, and the vertically arranged driven rack 13 enables the monitoring probe 7 to be lifted and lowered in a vertical direction consistent with the direction of the stress test hole; S4. During the raising and lowering process of the monitoring probe 7, the winding roller 9 keeps rotating and adjusting along with the raising and lowering of the driven rack 13, so that the connecting wire 6 can be adaptively retracted and released during the raising and lowering process of the monitoring probe 7, thereby eliminating the interference of the connecting wire 6 when the traditional monitoring probe 7 is put into or pulled out of the stress test hole.

[0032] In summary: the monitoring probe 7 is clamped on the arc-shaped fixed clamp 17 and the arc-shaped movable clamp 18, so that the downwardly extending driven rack 13 can control the monitoring probe 7 to extend into the stress test hole, thereby improving the situation that the monitoring probe 7 is inconvenient to apply force when inserted into the stress test hole due to limited height and is difficult to remove subsequently. The meshing and matching of the driven rack 13 and the driving gear 12 enables the monitoring probe 7 to flexibly control and maintain its height in the stress test hole, and the vertically arranged driven rack 13 enables the lifting and lowering of the monitoring probe 7 to remain in a vertical direction and consistent with the direction of the stress test hole; during the lifting and lowering of the monitoring probe 7, the winding roller 9 keeps rotating and adjusting with the lifting and lowering of the driven rack 13, so that the connecting wire 6 can be adaptively retracted and released during the lifting and lowering of the monitoring probe 7, thereby eliminating the interference of the connecting wire 6 when the traditional monitoring probe 7 is put into or pulled out of the stress test hole.

[0033] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A filling mining stress monitoring and early warning device, comprising a borehole stress monitoring host (1) and a monitoring probe (7), wherein the monitoring probe (7) is arranged on one side of the borehole stress monitoring host (1), and is characterized in that: A connecting wire (6) is fixed at the center of the end of the monitoring probe (7); an adjusting swivel seat (8) is fixed at the edge of one end surface of the drilling stress monitoring host (1); a retracting mechanism is arranged between the adjusting swivel seats (8); the retracting mechanism comprises a reeling roller (9) and a reeling shaft (10); the reeling roller (9) is arranged between the two adjusting swivel seats (8); the reeling shaft (10) is fixed at the centers of both ends of the reeling roller (9); and one side of the reeling roller (9) is provided with a A depth control mechanism, the depth control mechanism comprising a driving gear (12), a driven rack (13), an arc-shaped fixed clamp (17) and an arc-shaped movable clamp (18), the driving gear (12) being fixed to a winding shaft (10) at one end of a winding roller (9), the lifting slider (14) being meshedly connected to the driving gear (12), the arc-shaped fixed clamp (17) being fixed to a side surface of the driven rack (13), and the arc-shaped movable clamp (18) being arranged on one side of the arc-shaped fixed clamp (17).

2. The filling mining stress monitoring and early warning device according to claim 1 is characterized by: A rotation receiving groove (16) is formed through a surface of one side of the adjusting rotating seat (8), and the winding rotating shaft (10) is rotatably connected in the rotation receiving groove (16) of the adjusting rotating seat (8).

3. The filling mining stress monitoring and early warning device according to claim 2 is characterized by: An adjusting hand wheel (11) is fixed to one end of the winding shaft (10), and the driving gear (12) is rotatably connected to the adjusting rotating seat (8).

4. The filling mining stress monitoring and early warning device according to claim 3 is characterized by: The outer surface of the adjusting rotating seat (8) is provided with a lifting groove (15), and a lifting slider (14) is slidably connected in the lifting groove (15) of the adjusting rotating seat (8), and one end of the lifting slider (14) is fixed to a side surface of the driven rack (13).

5. The filling mining stress monitoring and early warning device according to claim 4 is characterized in that: A first screw hole (19) is provided on one side surface of the arc-shaped fixed clamp (17), and a second screw hole (20) is provided on one side surface of the arc-shaped movable clamp (18).

6. The filling mining stress monitoring and early warning device according to claim 5 is characterized by: The first screw hole (19) of the arc-shaped fixed clamp (17) is aligned with the second screw hole (20) of the arc-shaped movable clamp (18), and the first screw hole (19) and the second screw hole (20) are internally threadedly connected with a locking bolt (21).

7. The filling mining stress monitoring and early warning device according to claim 6 is characterized by: A clamping opening (22) is provided between the arc-shaped fixed clamp (17) and the arc-shaped movable clamp (18), and an annular anti-slip groove (23) is provided on the surface of the monitoring probe (7), and the arc-shaped fixed clamp (17) and the arc-shaped movable clamp (18) are adapted to the annular anti-slip groove (23) of the monitoring probe (7).

8. The filling mining stress monitoring and early warning device according to claim 7 is characterized by: A wire plug (5) is fixed to one end of the connecting wire (6) away from the monitoring probe (7), and the wire plug (5) is engaged and connected with the drilling stress monitoring host (1). A display screen (2) is arranged at the front end of the drilling stress monitoring host (1), and a control button (3) is arranged on the front end surface of the drilling stress monitoring host (1) below the display screen (2). A lifting leg (4) is fixed to the lower end surface of the drilling stress monitoring host (1).

9. A method for using a filling mining stress monitoring and early warning device, characterized in that: The following steps are involved: S1. Select the drilling location and construct the drilling stress test hole in the area to be monitored; S2. The monitoring probe (7) is placed at the hole opening, and the driven rack (13) extending downward can control the monitoring probe (7) to extend into the stress test hole, thereby improving the situation where the monitoring probe (7) is difficult to apply force when inserted into the stress test hole due to limited height and is difficult to remove afterwards; S3, the meshing match between the driven rack (13) and the driving gear (12) enables the monitoring probe (7) to flexibly control and maintain its height in the stress test hole, and the vertically arranged driven rack (13) enables the monitoring probe (7) to be raised and lowered in a vertical direction consistent with the direction of the stress test hole; S4. During the raising and lowering process of the monitoring probe (7), the winding roller (9) keeps rotating and adjusting along with the raising and lowering of the driven rack (13), so that the connecting wire (6) can be adaptively retracted and extended during the raising and lowering process of the monitoring probe (7), thereby eliminating the interference of the connecting wire (6) when the conventional monitoring probe (7) is placed in or taken out of the stress test hole.

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