Tunnel monitoring and early warning device

Abstract

The utility model relates to a tunnel monitoring early warning device which comprises a first arc-shaped plate, a second arc-shaped plate and a mounting seat, a first fixing plate is arranged at the lower end of the first arc-shaped plate, a second fixing plate is arranged at the lower end of the second arc-shaped plate, the first arc-shaped plate and the second arc-shaped plate are both abutted against a tunnel vault, and the mounting seat is fixed on the tunnel vault. The upper end of the first arc-shaped plate and the upper end of the second arc-shaped plate are both located in the mounting base, the upper end of the first arc-shaped plate and the upper end of the second arc-shaped plate are arranged in a spaced mode, and a first distance sensor is arranged at the upper end of the first arc-shaped plate or the upper end of the second arc-shaped plate and monitors the distance change of the upper ends of the first arc-shaped plate and the second arc-shaped plate; a second distance sensor is arranged on the mounting seat, and the second distance sensor monitors the distance change between the mounting seat and the bottom surface of the tunnel so as to judge whether the bottom surface of the tunnel is settled or not. According to the utility model, the tunnel vault collapse and the bottom surface settlement can be monitored at the same time.

Description

Technical Field

[0001] This utility model relates to the field of monitoring device technology, specifically to a tunnel monitoring and early warning device. Background Technology

[0002] The tunnel structure consists of two parts: the main building and auxiliary equipment. The main building comprises the tunnel body and portals, while the auxiliary equipment includes passing bays, fire-fighting facilities, emergency communication systems, and drainage systems. Longer tunnels also have specialized ventilation and lighting equipment. Due to the tunnel's concealed nature and complex geological conditions during construction, potential accident hazards need to be monitored constantly. Sudden accidents in tunnels and subways mainly manifest as arch collapses, floor settlement, and sudden water and mud inrushes from the sidewalls.

[0003] Most current tunnel settlement monitoring devices use multiple sensors installed at different points on the same cross section inside the tunnel to monitor multiple arched segments. This method can only effectively monitor settlement when settlement occurs at the monitored points. If settlement occurs on the part of the same arched surface where no monitoring device is installed, it cannot be effectively monitored. Furthermore, it is impossible to use the same set of monitoring devices to simultaneously monitor both the collapse of the arch and the settlement of the bottom surface. Utility Model Content

[0004] The purpose of this invention is to provide a tunnel monitoring and early warning device to solve the aforementioned problems in current tunnel monitoring.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A tunnel monitoring and early warning device includes a first arc-shaped plate, a second arc-shaped plate, and a mounting base. A first fixing plate is provided at the lower end of the first arc-shaped plate, fixing it to one side of the inner wall of the tunnel. A second fixing plate is provided at the lower end of the second arc-shaped plate, fixing it to the other side of the inner wall of the tunnel. Both the first and second arc-shaped plates abut against the tunnel arch. The mounting base is fixed to the tunnel arch. The upper ends of both the first and second arc-shaped plates are located within the mounting base, spaced apart. A first distance sensor is provided at the upper end of either the first or second arc-shaped plate to monitor changes in the distance between the upper ends of the first and second arc-shaped plates, determining whether the tunnel arch has settled. A second distance sensor is provided on the mounting base to monitor changes in the distance between the mounting base and the tunnel floor, determining whether the tunnel floor has settled.

[0007] Furthermore, the top of the mounting base is provided with a receiving groove for accommodating the upper ends of the first arc-shaped plate and the second arc-shaped plate. The top of the receiving groove is open, and mounting plates are provided on both sides of the receiving groove. The mounting base is fixed to the tunnel arch through the mounting plates.

[0008] Furthermore, a sensor mounting groove is provided on the upper end face of the first arc-shaped plate or the second arc-shaped plate, and the first distance sensor is installed in the sensor mounting groove.

[0009] Furthermore, a first guide wheel assembly is provided at the upper end of the first arc-shaped plate on both sides of the first arc-shaped plate. The first guide wheel assembly is used to abut against the tunnel arch when the first arc-shaped plate deforms to prevent the first arc-shaped plate from getting stuck in the tunnel arch. A second guide wheel assembly is provided at the upper end of the second arc-shaped plate on both sides of the second arc-shaped plate. The second guide wheel assembly is used to abut against the tunnel arch when the second arc-shaped plate deforms to prevent the second arc-shaped plate from getting stuck in the tunnel arch.

[0010] Furthermore, the mounting base extends downward to provide a vertical support column, and the lower end of the vertical support column is connected to a horizontal mounting rod, on which the second distance sensor is mounted.

[0011] Furthermore, a camera and indicator lights are installed on the horizontal mounting rod.

[0012] The beneficial effects of this utility model are:

[0013] This utility model discloses a tunnel monitoring and early warning device. A first distance sensor monitors the real-time distance changes between the upper ends of the first and second arc-shaped plates. Once the tunnel arch settles, the distance change is immediately detected, triggering an early warning signal. Similarly, a second distance sensor monitors the distance changes between the mounting base and the tunnel floor, promptly issuing an early warning of floor settlement. This timely early warning mechanism helps to identify potential safety hazards in advance and take necessary emergency measures. The first and second arc-shaped plates are fixed to the inner walls of both sides of the tunnel by fixing plates, and the mounting base is fixed to the tunnel arch by mounting plates. This design makes the installation of the monitoring device simple and convenient, requiring no extensive modification or damage to the tunnel structure. The design of the first and second arc-shaped plates can adapt to the arched structures of different tunnels. By adjusting the curvature and length of the arc-shaped plates, a tight fit with the tunnel arch can be ensured. Attached Figure Description

[0014] Figure 1 This is a front view of the tunnel monitoring and early warning device of this utility model;

[0015] Figure 2 This is a top view of the tunnel monitoring and early warning device of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the tunnel monitoring and early warning device of this utility model;

[0017] Figure 4 yes Figure 3 A schematic diagram of the structure at point A in the middle.

[0018] The names corresponding to each mark in the diagram:

[0019] 1. First arc-shaped plate,

[0020] 2. The second arc-shaped plate,

[0021] 3. Mounting base,

[0022] 4. First fixing plate,

[0023] 5. Second fixing plate,

[0024] 7. First distance sensor,

[0025] 8. Second distance sensor,

[0026] 10. Receiving tank,

[0027] 11. Mounting plate,

[0028] 12. Sensor mounting slot,

[0029] 13. First guide wheel assembly,

[0030] 14. Second guide wheel assembly

[0031] 15. Vertical support columns,

[0032] 16. Horizontal mounting bar,

[0033] 17. Camera,

[0034] 18. Indicator lights. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0036] Please see Figures 1 to 4 This utility model provides a tunnel monitoring and early warning device, including a first arc plate 1, a second arc plate 2 and a mounting base 3.

[0037] Figure 1 As shown, a first fixing plate 4 is provided at the lower end of the first arc-shaped plate 1. The first arc-shaped plate 1 is fixed to the inner wall of one side of the tunnel through the first fixing plate 4. The first fixing plate 4 can be connected to the inner wall of the tunnel by bolts or other fasteners to ensure that the first arc-shaped plate 1 is firmly installed on the inner wall of the tunnel.

[0038] A second fixing plate 5 is provided at the lower end of the second arc-shaped plate 2. The second arc-shaped plate 2 is fixed to the inner wall of the tunnel on the other side by the second fixing plate 5. Similarly, the second fixing plate 5 can be connected to the inner wall of the tunnel by bolts or other fasteners to ensure that the second arc-shaped plate 2 is firmly installed on the inner wall of the tunnel.

[0039] The first arc-shaped plate 1 and the second arc-shaped plate 2 both abut against the tunnel arch 6, and the mounting base 3 is fixed on the tunnel arch 6. The upper ends of the first arc-shaped plate 1 and the second arc-shaped plate 2 are both located in the mounting base 3, and the upper ends of the first arc-shaped plate 1 and the second arc-shaped plate 2 are spaced apart.

[0040] Figure 3 and Figure 4 As shown, a first distance sensor 7 is installed at the upper end of the first arc-shaped plate 1 or the second arc-shaped plate 2. The first distance sensor 7 monitors the change in distance between the upper ends of the first arc-shaped plate 1 and the second arc-shaped plate 2 to determine whether the tunnel arch 6 has settled. When the tunnel arch 6 settles, the first arc-shaped plate 1 and the second arc-shaped plate 2 will move accordingly, causing a change in the distance between their upper ends. The first distance sensor 7 can detect this change and issue an early warning signal.

[0041] A second distance sensor 8 is installed on the mounting base 3. The second distance sensor 8 monitors the change in distance between the mounting base 3 and the tunnel bottom surface 9 to determine whether the tunnel bottom surface 9 has settled. When the tunnel bottom surface 9 settles, the distance between the mounting base 3 and the tunnel bottom surface 9 will change, and the second distance sensor 8 can detect this change and issue an early warning signal.

[0042] Furthermore, the top of the mounting base 3 is provided with a receiving groove 10 to accommodate the upper ends of the first arc-shaped plate 1 and the second arc-shaped plate 2, and the top of the receiving groove 10 is open. Mounting plates 11 are provided on both sides of the receiving groove 10, and the mounting base 3 is fixed to the tunnel arch 6 through the mounting plates 11. The mounting plates 11 can be connected to the tunnel arch 6 by bolts or other fasteners to ensure that the mounting base 3 is firmly installed on the tunnel arch 6.

[0043] A sensor mounting groove 12 is provided on the upper end face of the first arc-shaped plate 1 or the second arc-shaped plate 2, and the first distance sensor 7 is installed in the sensor mounting groove 12. The sensor mounting groove 12 can facilitate the installation and fixation of the first distance sensor 7, ensuring its stable and reliable operation.

[0044] Figure 4As shown, a first guide wheel assembly 13 is provided at the upper end of the first arc-shaped plate 1 along both sides of its upper edge. The first guide wheel assembly 13 is used to abut against the tunnel arch 6 when the first arc-shaped plate 1 deforms to prevent it from getting stuck in the tunnel arch 6. A second guide wheel assembly 14 is provided at the upper end of the second arc-shaped plate 2 along both sides of its upper edge. The second guide wheel assembly 14 is used to abut against the tunnel arch 6 when the second arc-shaped plate 2 deforms to prevent it from getting stuck in the tunnel arch 6. The arrangement of the first guide wheel assembly 13 and the second guide wheel assembly 14 ensures that the first arc-shaped plate 1 and the second arc-shaped plate 2 can move smoothly during deformation, avoiding damage or impact on monitoring performance caused by getting stuck in the tunnel arch 6.

[0045] The mounting base 3 extends downwards and is provided with a vertical support column 15. The lower end of the vertical support column 15 is connected to a horizontal mounting rod 16, and the second distance sensor 8 is mounted on the horizontal mounting rod 16. The arrangement of the vertical support column 15 and the horizontal mounting rod 16 can facilitate the installation and fixation of the second distance sensor 8, ensuring its stable and reliable operation.

[0046] A camera 17 and an indicator light 18 are also installed on the horizontal mounting rod 16. The camera 17 can be used to monitor the situation inside the tunnel in real time, and the indicator light 18 can be used to indicate the working status of the monitoring device or to issue a warning signal.

[0047] This utility model's tunnel monitoring and early warning device uses a first distance sensor 7 to monitor changes in the distance between the upper ends of the first arc-shaped plate 1 and the second arc-shaped plate 2 to determine whether the tunnel arch 6 has settled. It also uses a second distance sensor 8 to monitor changes in the distance between the mounting base 3 and the tunnel bottom surface 9 to determine whether the tunnel bottom surface 9 has settled. This device can simultaneously monitor tunnel arch collapse and bottom surface settlement, improving the accuracy and reliability of the monitoring.

[0048] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model are within the protection scope of this utility model.

Claims

1. A tunnel monitoring and early warning device, characterized in that: The system includes a first arc-shaped plate, a second arc-shaped plate, and a mounting base. A first fixing plate is provided at the lower end of the first arc-shaped plate, fixing it to one side of the inner wall of the tunnel. A second fixing plate is provided at the lower end of the second arc-shaped plate, fixing it to the other side of the inner wall of the tunnel. Both the first and second arc-shaped plates abut against the tunnel arch. The mounting base is fixed to the tunnel arch. The upper ends of both the first and second arc-shaped plates are located within the mounting base, spaced apart. A first distance sensor is provided at the upper end of either the first or second arc-shaped plate to monitor changes in the distance between their upper ends, determining whether the tunnel arch has settled. A second distance sensor is provided on the mounting base to monitor changes in the distance between the mounting base and the tunnel floor, determining whether the tunnel floor has settled.

2. The tunnel monitoring and early warning device according to claim 1, characterized in that: The mounting base has a receiving groove at its top to accommodate the upper ends of the first arc-shaped plate and the second arc-shaped plate. The top of the receiving groove is open, and mounting plates are provided on both sides of the receiving groove. The mounting base is fixed to the tunnel arch through the mounting plates.

3. The tunnel monitoring and early warning device according to claim 1, characterized in that: A sensor mounting groove is provided on the upper end face of the first arc plate or the second arc plate, and the first distance sensor is installed in the sensor mounting groove.

4. The tunnel monitoring and early warning device according to claim 2, characterized in that: The upper end of the first arc-shaped plate is provided with a first guide wheel assembly at both sides of the first arc-shaped plate. The first guide wheel assembly is used to abut against the tunnel arch when the first arc-shaped plate deforms to prevent the first arc-shaped plate from getting stuck in the tunnel arch. The upper end of the second arc-shaped plate is provided with a second guide wheel assembly at both sides of the second arc-shaped plate. The second guide wheel assembly is used to abut against the tunnel arch when the second arc-shaped plate deforms to prevent the second arc-shaped plate from getting stuck in the tunnel arch.

5. The tunnel monitoring and early warning device according to claim 2, characterized in that: The mounting base extends downward and is provided with a vertical support column. The lower end of the vertical support column is connected to a horizontal mounting rod, and the second distance sensor is mounted on the horizontal mounting rod.

6. The tunnel monitoring and early warning device according to claim 5, characterized in that: The horizontal mounting rod is equipped with a camera and indicator lights.

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