Tunnel surrounding rock deformation detection device

Abstract

The utility model relates to the field of tunnel detection, and discloses a tunnel surrounding rock deformation detection device, which comprises a tunnel foundation, the tunnel foundation is arranged below a surrounding rock body, a support arc plate is detachably arranged in the surrounding rock body, an infrared locator is fixed on the top surface of the support arc plate, and the infrared locator is fixed on the top surface of the support arc plate. A plurality of fixing holes are formed in the two sides of the supporting arc plate respectively, pressure sensors are fixed in the fixing holes, a plurality of transmission plates are movably arranged on the two sides of the supporting arc plate respectively, a plurality of springs are fixed to one sides of the transmission plates, and the other ends of the springs are fixed to one side of the supporting arc plate. According to the utility model, the surrounding rock body can be detected more safely and stably, the influence of the outside on the detection data is reduced, the detection data is more accurate, a worker can know the detection result more easily and quickly, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel detection, in particular to a tunnel surrounding rock deformation detection device. Background Art

[0002] When constructing tunnel projects under soft and broken geological conditions such as loose soil, soft on top and hard on the bottom, water-rich and soft, and swelling and shrinking soil, if the initial deformation and stability of the tunnel surrounding rock cannot be effectively controlled, it will have an extremely adverse impact on the tunnel construction and its surrounding environment. In severe cases, it will cause the tunnel surrounding rock to become unstable and damaged, endangering the safety of the workers themselves and the orderly progress of construction. The tunnel structure is composed of surrounding rock and support structure, among which the surrounding rock is the main body of the load-bearing structure, and the support structure plays a role in assisting the permanent load of the surrounding rock.

[0003] According to the Chinese patent with publication number: CN218822203U, a tunnel surrounding rock deformation monitoring device is disclosed, in which the monitoring mark is fixedly connected to the monitoring point of the surrounding rock through embedded parts, and then the reflective sheet in the monitoring mark is observed by a total station to realize the deformation monitoring of the surrounding rock. When monitoring the reflective sheet in the monitoring mark, the shielding mechanism in the monitoring mark needs to be opened first.

[0004] In the above scheme, the staff first opens the shielding mechanism, and then observes the reflective sheet in the monitoring mark through the total station to realize deformation monitoring of the surrounding rock, which leads to the following disadvantages: when various external lights shine on the interior of the surrounding rock, they may shine on the reflective sheet, which may cause errors in the observation of the total station, making it impossible to accurately detect the condition of the surrounding rock. Utility Model Content

[0005] The purpose of the utility model is to provide a tunnel surrounding rock deformation detection device to solve the problem that when various external lights are irradiated into the surrounding rock, they may be irradiated on the reflective sheet, thus causing errors in the observation of the total station, thereby failing to accurately detect the condition of the surrounding rock.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a tunnel surrounding rock deformation detection device, including a tunnel foundation, the tunnel foundation is arranged below the surrounding rock body, a support arc plate is detachably arranged inside the surrounding rock body, an infrared locator is fixed to the top surface of the support arc plate, a plurality of fixing holes are respectively opened on both sides of the support arc plate, pressure sensors are fixed inside the fixing holes, a plurality of transmission plates are movably arranged on both sides of the support arc plate, the transmission plate consists of a square and a rectangular structure, a plurality of springs are fixed to one side of the transmission plate, and the other end of the spring is fixed to one side of the support arc plate.

[0007] Preferably, Velcro is provided on both sides of the inner wall of the supporting arc plate, and a reflective strip is provided on one side of the Velcro.

[0008] Preferably, two thread grooves are respectively provided on both sides of the surrounding rock body, and connecting plates are rotatably connected to both sides of the supporting arc plate through hinges, a connecting hole is provided on one side of the connecting plate, and a bolt is provided on one side of the connecting plate, and the bolt passes through the connecting hole and is threadedly connected to the thread groove.

[0009] Preferably, a noise reduction arc plate is fixed to the inner top surface of the supporting arc plate.

[0010] Preferably, alarms are fixed on both sides of the surrounding rock body.

[0011] Preferably, two cameras are fixed on both sides of the surrounding rock body.

[0012] Compared with the prior art, a tunnel surrounding rock deformation detection device using the above technical solution has the following beneficial effects:

[0013] 1. During use, the staff first places the support arc plate under the surrounding rock body. When placing the support arc plate, the infrared positioning instrument can make the support arc plate fit more closely with the surrounding rock body, so as to avoid errors in detection caused by inaccurate placement of the support arc plate. When the support arc plate is placed stably, the transmission plate contacts the inner wall of the surrounding rock body, and the other side of the transmission plate contacts the pressure sensor. The transmission plate is then supported by the spring, so that the data detected by the pressure sensor is stable after placement. When the surrounding rock body is deformed, the spring is squeezed or stretched, thereby causing the squeezing force of the transmission plate on the pressure sensor to change. Then, the pressure sensor transmits the detected data to the external control device, thereby detecting whether the surrounding rock body is deformed. The use of this device can make the detection of the surrounding rock body safer and more stable, reduce the influence of the outside world on the detected data, thereby making the detected data more accurate, and also allowing the staff to know the detection results more easily and quickly, thereby improving work efficiency.

[0014] 2. During use, the reflective strip is fixed by Velcro, so that it is convenient for the staff to replace the reflective strip. The reflective strip can be used to make a preliminary judgment on whether the surrounding rock body is deformed by light, so that the detection data is more comprehensive and accurate. The connecting plate is connected and fixed with the threaded groove by bolts, so that the supporting arc plate is fixed with the surrounding rock body, so that the supporting arc plate is more stable during detection, and the crushed stone can be prevented from hitting the supporting arc plate and causing the supporting arc plate to be skewed;

[0015] 3. During use, the noise reduction arc plate can absorb the noise in the surrounding rock body, making it more comfortable and safer for drivers to drive when the vehicle passes. The alarm can be used to sound an alarm when the surrounding rock body is deformed, so that surrounding drivers can be promptly prompted to evacuate, improving safety. The staff can observe the environment of the surrounding rock body in time through the camera to avoid the staff from rashly entering the surrounding rock body, thereby ensuring the life safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 It is an exploded schematic diagram of an embodiment.

[0018] Figure 3 It is a schematic diagram of the explosion at the supporting arc plate in the embodiment.

[0019] Figure 4 It is a schematic diagram of the explosion of the reflective strip in the embodiment.

[0020] Figure 5 For example Figure 2 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1. Tunnel foundation; 2. Surrounding rock body; 3. Support arc plate; 4. Infrared locator; 5. Fixing hole; 6. Pressure sensor; 7. Transmission plate; 8. Spring; 9. Velcro; 10. Reflective strip; 11. Threaded groove; 12. Connecting plate; 13. Connecting hole; 14. Bolt; 15. Noise reduction arc plate; 16. Alarm; 17. Camera. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-Figure 5 As shown, a tunnel surrounding rock deformation detection device includes a tunnel foundation 1, which is arranged below a surrounding rock body 2, a supporting arc plate 3 is detachably arranged inside the surrounding rock body 2, an infrared locator 4 is fixed to the top surface of the supporting arc plate 3, a plurality of fixing holes 5 are respectively opened on both sides of the supporting arc plate 3, a pressure sensor 6 is fixed inside the fixing hole 5, a plurality of transmission plates 7 are movably arranged on both sides of the supporting arc plate 3, the transmission plate 7 consists of a structure composed of a square and a rectangle, a plurality of springs 8 are fixed to one side of the transmission plate 7, and the other end of the spring 8 is fixed to one side of the supporting arc plate 3, and the infrared locator 4 and the pressure sensor 6 are electrically connected to an external control device.

[0024] During use, the staff first places the supporting arc plate 3 under the surrounding rock body 2. When placing the supporting arc plate 3, the infrared positioning device 4 can make the supporting arc plate 3 fit more closely with the surrounding rock body 2, so as to avoid detection errors caused by inaccurate placement of the supporting arc plate 3. When the supporting arc plate 3 is placed stably, the transmission plate 7 contacts the inner wall of the surrounding rock body 2, and the other side of the transmission plate 7 contacts the pressure sensor 6, and then the transmission plate 7 is supported by the spring 8, so that the data detected by the pressure sensor 6 is stable after placement. When the surrounding rock body 2 is deformed, the spring 8 is squeezed or stretched, thereby causing the squeezing force of the transmission plate 7 on the pressure sensor 6 to change, and then the detected data is transmitted to the external control device through the pressure sensor 6, so as to detect whether the surrounding rock body 2 is deformed. The use of this device can make the detection of the surrounding rock body 2 safer and more stable, reduce the influence of the outside world on the detected data, and thus make the detected data more accurate, and also enable the staff to know the detection results more easily and quickly, thereby improving work efficiency.

[0025] like Figure 1-Figure 5 As shown, Velcro 9 is provided on both sides of the inner wall of the supporting arc plate 3, a reflective strip 10 is provided on one side of the Velcro 9, two thread grooves 11 are provided on both sides of the surrounding rock body 2, connecting plates 12 are rotatably connected to the supporting arc plate 3 on both sides through hinges, a connecting hole 13 is provided on one side of the connecting plate 12, a bolt 14 is provided on one side of the connecting plate 12, the bolt 14 passes through the connecting hole 13 and is threadedly connected to the thread groove 11, a noise reduction arc plate 15 is fixed on the inner top surface of the supporting arc plate 3, the noise reduction arc plate 15 is made of rubber, an alarm 16 is fixed on both sides of the surrounding rock body 2, two cameras 17 are fixed on both sides of the surrounding rock body 2, and the alarm 16 and the camera 17 are electrically connected to the external control equipment.

[0026] In use, the reflective strip 10 is fixed by Velcro 9, so that it is convenient for the staff to replace the reflective strip 10. The reflective strip 10 can facilitate the staff to preliminarily judge whether the surrounding rock body 2 is deformed by light, so that the detected data is more comprehensive and accurate. The connecting plate 12 is connected and fixed with the thread groove 11 by bolts 14, so that the supporting arc plate 3 is fixed with the surrounding rock body 2, so that the supporting arc plate 3 is more stable during detection, and the crushed stone can be prevented from hitting the supporting arc plate 3 and causing the supporting arc plate 3 to be skewed. The noise reduction arc plate 15 can absorb the noise in the surrounding rock body 2, so that the driver of the vehicle can be more comfortable and safe when passing. The alarm 16 can make the surrounding rock body 2 sound an alarm when it is deformed, so that the surrounding drivers can be promptly prompted to evacuate, thereby improving safety. The staff can observe the environment of the surrounding rock body 2 in time through the camera 17, so as to avoid the staff from rashly entering the surrounding rock body 2, thereby ensuring the life safety of the staff.

[0027] The above description 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tunnel surrounding rock deformation detection device, comprising a tunnel foundation (1), wherein the tunnel foundation (1) is arranged below a surrounding rock body (2), and is characterized in that: A support arc plate (3) is detachably provided inside the surrounding rock body (2), an infrared locator (4) is fixed on the top surface of the support arc plate (3), a plurality of fixing holes (5) are respectively provided on both sides of the support arc plate (3), a pressure sensor (6) is fixed inside the fixing holes (5), a plurality of transmission plates (7) are movably provided on both sides of the support arc plate (3), the transmission plate (7) is composed of a structure composed of a square and a rectangle, a plurality of springs (8) are fixed on one side of the transmission plate (7), and the other end of the spring (8) is fixed to one side of the support arc plate (3).

2. A tunnel surrounding rock deformation detection device according to claim 1, characterized in that: Velcro (9) is provided on both sides of the inner wall of the supporting arc plate (3), and a reflective strip (10) is provided on one side of the Velcro (9).

3. A tunnel surrounding rock deformation detection device according to claim 1, characterized in that: Two thread grooves (11) are respectively provided on both sides of the surrounding rock body (2); connecting plates (12) are rotatably connected to the supporting arc plates (3) on both sides through hinges; a connecting hole (13) is provided on one side of the connecting plate (12); a bolt (14) is provided on one side of the connecting plate (12); the bolt (14) passes through the connecting hole (13) and is threadedly connected to the thread groove (11).

4. A tunnel surrounding rock deformation detection device according to claim 1, characterized in that: A noise reduction arc plate (15) is fixed to the inner top surface of the supporting arc plate (3).

5. The tunnel surrounding rock deformation detection device according to claim 1, characterized in that: Alarms (16) are respectively fixed on both sides of the surrounding rock body (2).

6. The tunnel surrounding rock deformation detection device according to claim 1, characterized in that: Two cameras (17) are respectively fixed on both sides of the surrounding rock body (2).

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