Roadway floor heave deformation monitoring device

Abstract

The utility model provides a roadway floor heave deformation monitoring device which comprises a detection block, an elastic plate is arranged on the lower portion of the detection block, and a plurality of pressure sensors are arranged on the lower portion of the detection block. A folding cavity is formed in the upper portion of the detection block, a gear is installed in the middle of the folding cavity through a shaft rod, a first rack and a second rack are arranged on the two sides of the interior of the folding cavity, and the first rack and the second rack are connected with the gear in a meshed mode. A pressure sensor is mounted between the detection block and the elastic plate, the elastic plate is stressed to touch and extrude the pressure sensor, so that the pressure sensor can detect deformation, a first rack and a second rack are connected in a folding cavity of the detection block through gear engagement, telescopic folding adjustment is performed, adaptive adjustment is performed in a roadway, and the detection efficiency is improved. And roadway floor heaves at different positions can be conveniently monitored.

Description

Technical Field

[0001] The utility model relates to the field of tunnel monitoring, and in particular to a monitoring device for tunnel floor heave deformation. Background Art

[0002] The treatment of floor heave in soft rock tunnels has always been one of the key problems in soft rock support. As a soft rock mining tunnel affected by mining pressure, the floor heave problem of the tunnel is particularly prominent. Floor heave is an engineering problem. Affected by the mining project, the top and bottom plates of the tunnel and the rock masses on both sides are deformed and displaced into the tunnel. The phenomenon of the tunnel floor bulging upward is called floor heave. The floor heave causes the tunnel section to shrink, hinders transportation and pedestrians, and hinders mine ventilation. Many mines have to invest a lot of manpower and material resources to do temporary treatment work such as "digging the bottom". Severe cases will cause the entire tunnel to be scrapped, which has a great impact on the production and safety of the mine.

[0003] Referring to the existing Chinese patent with publication number CN116659445A, a device for real-time continuous monitoring of tunnel floor heave deformation is disclosed, which realizes real-time continuous and automatic measurement of tunnel floor heave deformation with high precision. The wire-type displacement sensor transmits the detected displacement change signal and the angle sensor transmits the angle change data of the outer rod and the inner rod to the controller. The controller takes in the relevant measurement data, calculates the tunnel floor heave deformation data, and uploads the calculated data regularly.

[0004] However, when the above technology is used, it is not convenient to adjust the length, it is impossible to realize adjustment inside the tunnel, and it is not convenient to monitor the floor heave at different positions inside the tunnel, and it is impossible to effectively realize the monitoring of the floor heave at different positions of the tunnel. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides a monitoring device for tunnel floor heave deformation, aiming to improve the problems in the prior art that the equipment is not convenient for length adjustment, cannot be adjusted inside the tunnel, is not convenient for monitoring floor heave at different positions inside the tunnel, and cannot effectively monitor floor heave at different positions of the tunnel.

[0006] The embodiment of the utility model provides a monitoring device for tunnel floor heave deformation, comprising a detection block, an elastic plate is fixedly provided at the lower part of the detection block, and a plurality of pressure sensors are fixedly provided at the lower part of the detection block;

[0007] A folding cavity is provided at the upper part of the detection block, a gear is installed in the middle of the folding cavity through a shaft, a rotating handwheel is fixedly installed at the upper end of the shaft, a first rack and a second rack are provided on both sides of the inside of the folding cavity, and the first rack and the second rack are meshed and connected with the gear.

[0008] In the above-mentioned implementation process, when the utility model is in use, an elastic plate is provided at the lower part of the detection block, and a pressure sensor is fixedly installed between the detection block and the elastic plate, that is, the elastic plate is squeezed when the tunnel floor bulge occurs, and the elastic plate touches and squeezes the pressure sensor at this time, so that the pressure sensor can detect the deformation, and multiple groups are provided, which is convenient for multi-position detection of tunnel floor bulge, and the first rack and the second rack are connected by gear meshing in the folding cavity of the detection block. Under the action of the gear, the first rack and the second rack are telescopically folded and adjusted, which is convenient for adjusting the position of the detection block, and effectively performing adaptive adjustment in the tunnel, which is convenient for monitoring the tunnel floor bulge at different positions.

[0009] In a specific embodiment, mounting plates are fixedly provided at both ends of the first rack and the second rack, respectively, and a drill rod is installed through the mounting plates.

[0010] In the above implementation process, the setting of the mounting plate facilitates the fixed installation of the equipment at the bottom of the tunnel, and the fixed installation is performed by the drill rod to maintain the stability of the installation.

[0011] In a specific implementation scheme, L-shaped clamping plates are welded to the two ends of the lower part of the detection block, and insertion plates are fixed to the two ends of the elastic plate. The insertion plates are clamped in the L-shaped clamping plates, and the insertion plates and the L-shaped clamping plates are fixedly connected by fixing bolts.

[0012] In the above implementation process, the setting of the L-shaped clamping plate facilitates the insertion and clamping of the inserting plates at both ends of the elastic plate, and the fixing connection is performed by fixing bolts to maintain the fixed installation of the elastic plate.

[0013] In a specific embodiment, triangular clamps are fixedly provided at both ends of the elastic plate, and the tips of the triangular clamps are arranged outwards.

[0014] In the above implementation process, the setting of the triangular clamp is convenient for the elastic plate to be folded and contracted, and the tip is arranged outward, so that when folded, it will not affect the monitoring of the pressure sensor.

[0015] In a specific implementation manner, a plurality of first limiting rings are fixedly provided on the lower surface of the detection block, and a second limiting ring is fixedly provided inside the first limiting ring.

[0016] In the above implementation process, the setting of the first limiting ring and the second limiting ring facilitates the fixed installation of the spring and maintains the fixed installation of the spring.

[0017] In a specific implementation manner, a plurality of third limiting rings are fixedly provided on the upper surface of the elastic plate, and a contact plate is fixedly provided inside the third limiting rings.

[0018] In the above implementation process, the setting of the third limiting ring facilitates fixing the other end of the spring, and the setting of the contact plate facilitates protecting the pressure sensor.

[0019] In a specific implementation manner, a spring is fixedly installed between the first limiting ring and the second limiting ring, and the other end of the spring is fixedly connected to the inside of the third limiting ring.

[0020] In the above implementation process, the setting of the spring is convenient for supporting the elastic plate, maintaining the elasticity of the elastic plate, facilitating continuous resetting operations, and the third limiting ring is convenient for fixing the spring.

[0021] In a specific implementation manner, a plurality of the pressure sensors are fixedly disposed in a plurality of the second limiting rings respectively, and the bottom ends of the plurality of the pressure sensors are in contact and connected with a plurality of the contact plates.

[0022] In the above implementation process, the pressure sensor is fixed inside the second limiting ring, which is convenient for maintaining the stable installation of the pressure sensor, and the contact plate is convenient for protecting the bottom end of the pressure sensor to prevent the pressure sensor from being damaged after force contact.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] When the utility model is in use, an elastic plate is provided at the lower part of the detection block, and a pressure sensor is fixedly installed between the detection block and the elastic plate, that is, the elastic plate is squeezed when the tunnel floor bulge occurs, and the elastic plate touches and squeezes the pressure sensor at this time, so that the pressure sensor can detect the deformation, and multiple groups are provided, which is convenient for multi-position detection of the tunnel floor bulge, and the first rack and the second rack are connected by gear meshing in the folding cavity of the detection block. Under the action of the gear, the first rack and the second rack are telescopically folded and adjusted, which is convenient for adjusting the position of the detection block, effectively performing adaptive adjustment in the tunnel, and facilitating the monitoring of the tunnel floor bulge at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram provided by an embodiment of the utility model;

[0027] Figure 2A cross-sectional schematic diagram provided for an embodiment of the utility model;

[0028] Figure 3 A partial structural schematic diagram provided for an implementation mode of the utility model;

[0029] Figure 4 The utility model embodiment provides Figure 3 Schematic diagram at point A in the middle.

[0030] In the figure: 1. detection block; 2. elastic plate; 3. folding chamber; 4. gear; 5. shaft; 6. rotating hand wheel; 7. first rack; 8. second rack; 9. mounting plate; 10. drill rod; 11. L-shaped clamping plate; 12. insertion plate; 13. triangular clamp; 14. fixing bolt; 15. first limit ring; 16. second limit ring; 17. pressure sensor; 18. third limit ring; 19. spring; 20. contact plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] When the utility model is in use, an elastic plate 2 is provided at the lower part of the detection block 1, and a pressure sensor 17 is fixedly installed between the detection block 1 and the elastic plate 2, that is, the elastic plate 2 is squeezed when the tunnel floor bulge occurs, and at this time the elastic plate 2 touches and squeezes the pressure sensor 17, so that the pressure sensor 17 can detect the deformation, and multiple groups are provided, which is convenient for multi-position detection of the tunnel floor bulge, and the first rack 7 and the second rack 8 are meshed and connected by the gear 4 in the folding cavity 3 of the detection block 1. The first rack 7 and the second rack 8 are telescopically folded and adjusted under the action of the gear 4, which is convenient for adjusting the position of the detection block 1, effectively performing adaptive adjustment in the tunnel, and facilitating monitoring of the tunnel floor bulge at different positions; it is intended to improve the problems in the prior art that the equipment is not convenient for length adjustment, cannot be adjusted inside the tunnel, is not convenient for monitoring the floor bulge at different positions inside the tunnel, and cannot effectively monitor the floor bulge at different positions of the tunnel.

[0034] See also Figure 1-4The utility model provides a monitoring device for tunnel floor heave deformation, comprising a detection block 1, an elastic plate 2 is fixedly provided at the lower part of the detection block 1, and a plurality of pressure sensors 17 are fixedly provided at the lower part of the detection block 1; triangular clamps 13 are fixedly provided at both ends of the elastic plate 2, and the tip of the triangular clamp 13 is arranged outwardly, and the setting of the triangular clamp 13 is convenient for the elastic plate 2 to fold and shrink, and the tip is arranged outwardly, and when folded, it will not affect the monitoring of the pressure sensor 17;

[0035] A folding chamber 3 is provided at the upper part of the detection block 1, a gear 4 is installed in the middle of the folding chamber 3 through a shaft 5, a rotating hand wheel 6 is fixedly installed at the upper end of the shaft 5, a first rack 7 and a second rack 8 are provided on both sides of the inside of the folding chamber 3, the first rack 7 and the second rack 8 are meshed and connected with the gear 4, and mounting plates 9 are fixedly provided at both ends of the first rack 7 and the second rack 8, respectively, and a drill rod 10 is installed through the mounting plate 9. The setting of the mounting plate 9 facilitates the fixed installation of the equipment at the bottom of the tunnel, and the fixed installation is performed through the drill rod 10 to maintain the stability of the installation;

[0036] L-shaped card plates 11 are welded to both ends of the lower part of the detection block 1, and insert plates 12 are fixed to both ends of the elastic plate 2. The insert plates 12 are engaged with the L-shaped card plates 11, and the insert plates 12 and the L-shaped card plates 11 are fixedly connected by fixing bolts 14. The setting of the L-shaped card plates 11 facilitates the insertion and engagement of the insert plates 12 at both ends of the elastic plate 2, and the fixing connection is performed by fixing bolts 14 to maintain the fixed installation of the elastic plate 2;

[0037] A plurality of first limiting rings 15 are fixedly provided on the lower surface of the detection block 1, and a second limiting ring 16 is fixedly provided inside the first limiting ring 15. The setting of the first limiting ring 15 and the second limiting ring 16 is convenient for fixing and installing the spring 19, and the fixed installation of the spring 19 is maintained. A plurality of third limiting rings 18 are fixedly provided on the upper surface of the elastic plate 2, and a contact plate 20 is fixedly provided inside the third limiting ring 18. The setting of the third limiting ring 18 is convenient for fixing the other end of the spring 19, and the setting of the contact plate 20 is convenient for protecting the pressure sensor 17. A spring 19 is fixedly provided between the first limiting ring 15 and the second limiting ring 16, and the other end of the spring 19 is fixedly provided between the first limiting ring 15 and the second limiting ring 16. One end is fixedly connected to the inside of the third limiting ring 18, and the setting of the spring 19 is convenient for supporting the elastic plate 2, maintaining the elasticity of the elastic plate 2, and facilitating continuous resetting operations, and the third limiting ring 18 is convenient for fixing the spring 19, and a number of pressure sensors 17 are respectively fixedly arranged in a number of second limiting rings 16, and the bottom ends of the pressure sensors 17 are contacted and connected with a number of contact plates 20. The pressure sensor 17 is fixed inside the second limiting ring 16, which is convenient for maintaining the stable installation of the pressure sensor 17, and the contact plate 20 is convenient for protecting the bottom end of the pressure sensor 17 to prevent the pressure sensor 17 from being damaged after force contact.

[0038] The above description is only an embodiment of the utility model and is not intended to limit the protection scope of the utility model. For those skilled in the art, the utility model may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0039] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A monitoring device for tunnel floor heave deformation, characterized in that: It comprises a detection block (1), an elastic plate (2) is fixedly provided at the lower part of the detection block (1), and a plurality of pressure sensors (17) are fixedly provided at the lower part of the detection block (1); A folding cavity (3) is provided at the top of the detection block (1); a gear (4) is installed in the middle of the folding cavity (3) via a shaft (5); a rotating hand wheel (6) is fixedly installed at the upper end of the shaft (5); a first rack (7) and a second rack (8) are provided on both sides of the inside of the folding cavity (3); the first rack (7) and the second rack (8) are meshedly connected with the gear (4).

2. A monitoring device for tunnel floor heave deformation according to claim 1, characterized in that: Mounting plates (9) are fixedly provided at both ends of the first rack (7) and the second rack (8), and a drill rod (10) is installed through the mounting plate (9).

3. The monitoring device for tunnel floor heave deformation according to claim 1, characterized in that: L-shaped clamping plates (11) are welded to both ends of the lower part of the detection block (1), and insertion plates (12) are fixedly provided at both ends of the elastic plate (2). The insertion plates (12) are clamped on the L-shaped clamping plates (11), and the insertion plates (12) and the L-shaped clamping plates (11) are fixedly connected by fixing bolts (14).

4. The monitoring device for tunnel floor heave deformation according to claim 1, characterized in that: Triangular clamps (13) are fixedly provided at both ends of the elastic plate (2), and the tips of the triangular clamps (13) are arranged outwards.

5. The monitoring device for tunnel floor heave deformation according to claim 1, characterized in that: A plurality of first limiting rings (15) are fixedly provided on the lower surface of the detection block (1), and a second limiting ring (16) is fixedly provided inside the first limiting ring (15).

6. The monitoring device for tunnel floor heave deformation according to claim 5, characterized in that: A plurality of third limiting rings (18) are fixedly provided on the upper surface of the elastic plate (2), and a contact plate (20) is fixedly provided inside the third limiting ring (18).

7. A monitoring device for tunnel floor heave deformation according to claim 6, characterized in that: A spring (19) is fixedly installed between the first limiting ring (15) and the second limiting ring (16), and the other end of the spring (19) is fixedly connected to the inside of the third limiting ring (18).

8. The monitoring device for tunnel floor heave deformation according to claim 7, characterized in that: A plurality of the pressure sensors (17) are respectively fixedly arranged in a plurality of the second limiting rings (16), and the bottom ends of the plurality of the pressure sensors (17) are in contact and connected with a plurality of the contact plates (20).

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