Railway tunnel reinforcing section stress monitoring device
By designing a bracket and a force monitoring sensor for the reinforced section of a railway tunnel, and utilizing elastic elements and adjusting screws to adjust the sensor angle, combined with the fixing of the reinforcement strip, the problem of large measurement error in the existing technology is solved, and the monitoring accuracy and stability are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 19 BUREAU GRP CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-24
AI Technical Summary
The existing stress monitoring devices for reinforced sections of railway tunnels have large measurement errors due to poor contact with the reinforced sections, which affects the monitoring accuracy.
By employing mounting brackets and force monitoring sensors, and through the use of elastic elements and adjusting screws, the sensor angle can be adjusted. Combined with the fixing of reinforcing strips and connecting screws, it is ensured that the sensor is in close contact with the reinforced section, thereby improving monitoring accuracy.
This improved the accuracy and stability of stress monitoring in reinforced sections of railway tunnels, enhanced the utilization rate of the device, and ensured the monitoring effect.
Smart Images

Figure CN224552928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of monitoring technology for reinforced sections of tunnels, and in particular to a stress monitoring device for reinforced sections of railway tunnels. Background Technology
[0002] A reinforced section of a railway tunnel refers to a section or area where targeted reinforcement measures are taken during the construction and operation of a railway tunnel due to complex geological conditions, abnormal structural stress, or defects such as deformation, cracking, and water leakage, or to meet safe operational requirements. The stress monitoring device for the reinforced section provides data support for evaluating the safety, stability, and effectiveness of the reinforced tunnel structure. However, the stress monitoring device suffers from significant measurement errors due to insufficient contact with the reinforced section. Utility Model Content
[0003] The purpose of this invention is to provide a stress monitoring device for reinforced sections of railway tunnels, thereby solving the problem of large measurement errors in existing stress monitoring devices for reinforced sections.
[0004] To achieve the above objectives, this utility model provides a stress monitoring device for reinforced sections of railway tunnels, including a mounting bracket and a stress monitoring sensor. The stress monitoring sensor is connected to the mounting bracket, and a mounting plate is provided on the mounting bracket. An adjusting ring is provided between the mounting plate and the stress monitoring sensor. The adjusting ring is connected to the mounting plate via an adjusting screw. An elastic element is provided between the mounting plate and the adjusting ring, and the elastic element is connected to the adjusting screw. Multiple adjusting screws and multiple elastic elements are provided, and the multiple elastic elements and the adjusting screw are circumferentially distributed.
[0005] Preferably, both the adjusting ring and the mounting plate are provided with through holes, and the adjusting screw passes through the through holes and the elastic element to connect with the mounting plate.
[0006] Preferably, the end of the mounting bracket is provided with a connecting hole, the connecting hole is connected to a connecting screw, and the bottom of the connecting screw is connected to a nut.
[0007] Preferably, the upper part of the nut is provided with a reinforcing strip, and there are two reinforcing strips. Both reinforcing strips are connected to the steel profile, and both ends of the reinforcing strips are provided with round holes, which are connected to the connecting screw.
[0008] Preferably, the reinforcing strip is provided with a groove and a reinforcing block, and two reinforcing blocks are provided, which are arranged opposite to each other and are both arranged in the groove.
[0009] Preferably, the lower parts of both reinforcing blocks are connected to screws, the screws pass through the screws at the lower part of the reinforcing blocks, one end of the reinforcing block is connected to a bearing disposed inside the reinforcing strip, and the other end passes through the reinforcing strip and is connected to an adjusting handle.
[0010] Preferably, the upper part of the reinforcing block is provided with a fixing groove.
[0011] Therefore, the above-mentioned stress monitoring device for reinforced sections of railway tunnels has the following beneficial effects: (1) By setting up elastic elements and adjusting screws, the angle of the force monitoring sensor can be adjusted to adapt to the contact surface of the reinforced section with different shapes and angles, thereby improving the monitoring accuracy of the force monitoring sensor.
[0012] (2) By setting the reinforcing strip, the mounting bracket is fixed to ensure the stability of the mounting bracket and the monitoring sensor, and to ensure the monitoring effect.
[0013] (3) By setting up the mounting bracket, multiple measurements are taken at the reinforced section to improve the utilization rate of the device.
[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of an embodiment of a stress monitoring device for reinforced sections of railway tunnels according to the present invention; Figure 2 This is a front view of a stress monitoring device for reinforced sections of railway tunnels according to this utility model; Figure 3 This is a schematic diagram of the reinforcing strip of a railway tunnel reinforcement section stress monitoring device according to the present invention; Figure 4 This is a schematic diagram of the screw structure of a stress monitoring device for reinforced sections of railway tunnels according to the present invention; Figure Labels 1. Structural steel; 2. Mounting bracket; 3. Mounting plate; 4. Adjusting screw; 5. Adjusting ring; 6. Reinforcing strip; 7. Nut; 8. Connecting screw; 9. Force monitoring sensor; 10. Mounting base; 11. Elastic element; 12. Adjusting handle; 13. Fixing groove; 14. Reinforcing block; 15. Round hole; 16. Screw. Detailed Implementation
[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0017] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0018] Example Please see Figures 1-4 This utility model provides a stress monitoring device for reinforced sections of railway tunnels, including a mounting bracket 2 and a stress monitoring sensor 9. The stress monitoring sensor 9 is connected to the mounting bracket 2. A mounting plate 3 is provided on the mounting bracket 2. An adjusting ring 5 is provided between the mounting plate 3 and the stress monitoring sensor 9. The adjusting ring 5 is connected to the mounting plate 3 via an adjusting screw 4. An elastic element 11 is provided between the mounting plate 3 and the adjusting ring 5. The elastic element 11 is connected to the adjusting screw 4. The angle of the stress monitoring sensor 9 can be adjusted by the setting of the elastic element 11 and the adjusting screw 4 to adapt to the structure of the reinforced section of the tunnel. Multiple adjusting screws 4 and multiple elastic elements 11 are provided. The multiple elastic elements 11 and the adjusting screw 4 are circumferentially distributed, and the circumferential arrangement facilitates multi-angle adjustment.
[0019] Both the adjusting ring 5 and the mounting plate 3 have through holes. The adjusting screw 4 passes through the through holes and the elastic element 11, connecting to the mounting plate 3. Rotating the adjusting screw 4 causes the elastic element 11 located at the lower part of the adjusting ring 5 to either elastically recover or compress. The elastic element 11 either pushes upward against the adjusting ring 5 or is compressed downward by the adjusting screw 4, causing the adjusting ring 5 to tilt laterally, creating a height difference between its two ends. The adjusting screw 4 can be adjusted at different positions according to the structural design to ensure that the force monitoring sensor 9 is in close contact with the existing lining, thus improving monitoring accuracy. During use, multiple force monitoring sensors 9 are installed, and their angles are adjusted according to the adjusting screw 4 and the elastic element 11.
[0020] The mounting bracket 2 has a connecting hole at one end, which connects to the connecting screw 8. The adjusting screw 4 passes through the connecting hole and the reinforcing strip 6 to fix the mounting bracket 2. The bottom of the connecting screw 8 is connected to the nut 7. The upper part of the nut 7 is provided with a reinforcing strip 6, which provides secondary fixation for the mounting bracket 2. There are two reinforcing strips 6, both of which are connected to the steel profile 1. Both ends of the reinforcing strip 6 are provided with round holes 15, which are connected to the connecting screw 8.
[0021] The reinforcing strip 6 is equipped with a sliding groove and a reinforcing block 14. The reinforcing block 14 can slide within the sliding groove to accommodate steel sections 1 of different specifications. Two reinforcing blocks 14 are provided, arranged opposite each other, and both are positioned within the sliding groove. The two reinforcing blocks 14 clamp and fix both ends of the steel section 1. A fixing groove 13 is provided on the upper part of the reinforcing block 14. The fixing groove 13 is adapted to the steel section 1 to enhance the stability of the fixation.
[0022] The lower parts of both reinforcing blocks 14 are connected to screws 16. Screws 16 pass through the screws at the bottom of the reinforcing blocks 14. The reinforcing blocks 14 are adjusted by rotating screws 16. One end of the reinforcing block 14 is connected to a bearing set inside the reinforcing strip 6, and the other end passes through the reinforcing strip 6 and is connected to the adjusting handle 12.
[0023] In practical use, the force monitoring sensor 9 is installed on the mounting bracket 2 through the mounting base 10. The mounting bracket 2 is then installed. Multiple force monitoring sensors 9 can be set in different positions. The connecting screw 8 passes through the connecting hole and the round hole and is connected to the nut 7 to fix the mounting bracket 2. The adjusting handle 12 at the end of the reinforcing strip 6 is adjusted to rotate the screw 16, which drives the reinforcing block 14 to move and clamp and fix the steel 1, thus completing the installation process.
[0024] Therefore, this utility model employs the aforementioned force monitoring device for reinforced sections of railway tunnels. Through the inclusion of elastic elements and adjusting screws, the angle of the force monitoring sensor can be adjusted to adapt to contact surfaces of reinforced sections with different shapes and angles, thereby improving the monitoring accuracy of the sensor. The reinforcement strips secure the mounting bracket, ensuring the stability of both the bracket and the monitor, thus guaranteeing effective monitoring. The mounting bracket allows for measurements to be taken at multiple points along the reinforced section, improving the device's utilization rate.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. A stress monitoring device for reinforced sections of railway tunnels, characterized in that: The device includes a mounting bracket and a force monitoring sensor. The force monitoring sensor is connected to the mounting bracket. A mounting plate is provided on the mounting bracket. An adjusting ring is provided between the mounting plate and the force monitoring sensor. The adjusting ring is connected to the mounting plate via an adjusting screw. An elastic element is provided between the mounting plate and the adjusting ring. The elastic element is connected to the adjusting screw. Multiple adjusting screws and multiple elastic elements are provided, and the multiple elastic elements and the adjusting screw are circumferentially distributed.
2. The stress monitoring device for reinforced sections of railway tunnels according to claim 1, characterized in that: Both the adjusting ring and the mounting plate are provided with through holes, and the adjusting screw passes through the through holes and the elastic element to connect with the mounting plate.
3. The stress monitoring device for reinforced sections of railway tunnels according to claim 2, characterized in that: The mounting bracket has a connecting hole at one end, which is connected to a connecting screw, and the bottom of the connecting screw is connected to a nut.
4. The stress monitoring device for reinforced sections of railway tunnels according to claim 3, characterized in that: The nut is provided with a reinforcing strip on its upper part. There are two reinforcing strips, and both reinforcing strips are connected to the steel profile. Both ends of the reinforcing strips are provided with round holes, which are connected to the connecting screw.
5. The stress monitoring device for reinforced sections of railway tunnels according to claim 4, characterized in that: The reinforcing strip is provided with a groove and a reinforcing block. There are two reinforcing blocks, which are arranged opposite to each other and are both located in the groove.
6. The stress monitoring device for reinforced sections of railway tunnels according to claim 5, characterized in that: The lower parts of both reinforcing blocks are connected to screws, which pass through the screws at the bottom of the reinforcing blocks. One end of each reinforcing block is connected to a bearing located inside the reinforcing strip, and the other end passes through the reinforcing strip and is connected to an adjusting handle.
7. The stress monitoring device for reinforced sections of railway tunnels according to claim 6, characterized in that: The upper part of the reinforcing block is provided with a fixing groove.