A tunnel ground surface settlement automatic monitoring device

Abstract

The utility model provides a kind of tunnel ground surface settlement automation monitoring device.The tunnel ground surface settlement automation monitoring device includes: multiple settlement automation monitoring mechanisms and multiple measuring point bases being arranged on tunnel ground surface, the settlement automation monitoring mechanism includes two beam frame bases and mounting bracket assembly, the mounting bracket assembly is installed on two beam frame bases;The mounting bracket assembly includes two groups of beam frame mounting holes, two beam frames and reference beam.The tunnel ground surface settlement automation monitoring device provided by the utility model can solve the continuous monitoring problem of ground surface settlement in dense forest, steep slope and other non-visibility environments, and by setting up a solar comprehensive collector, using solar power supply and low-power design, long-term unattended monitoring in remote areas can be realized. Dynamic hibernation strategy can greatly reduce energy consumption, reduce dependence on external power supply and reduce maintenance costs.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel surface settlement monitoring technology, and in particular relates to an automated monitoring device for tunnel surface settlement. Background Technology

[0002] During tunnel construction and operation, surface settlement monitoring is a key step in assessing structural safety and preventing geological disasters. Traditional monitoring methods (such as total stations, levels, GNSS, etc.) rely on optical line of sight or satellite signal reception. However, in complex terrains such as dense forests and tunnel entrances, poor line of sight and severe signal obstruction result in many monitoring blind spots and poor data continuity.

[0003] Existing automated monitoring technologies still have many problems. For example, they rely on line-of-sight conditions, requiring optical equipment to have an unobstructed line of sight, making it difficult to set up benchmarks and monitoring points in dense forest environments; power supply is limited, with most field monitoring equipment using wired or battery power, leading to difficulties in wiring, frequent battery replacements, and high maintenance costs in remote areas; adaptability is insufficient, as traditional pull-wire displacement gauges require linear deployment and have limited distances between the fixed and measuring ends, making them unsuitable for monitoring irregular settlement surfaces in vegetated areas; and real-time performance is poor, with existing systems mostly relying on periodic manual data collection or inefficient wireless transmission, making it difficult to provide timely warnings of sudden settlement risks. Therefore, it is necessary to provide a new automated monitoring device for tunnel surface settlement to solve the above technical problems. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a continuous monitoring device for surface subsidence in environments with poor visibility, such as dense forests and steep slopes. By setting up a solar-powered integrated data acquisition instrument and adopting solar power supply and low power consumption design, it can realize long-term unattended monitoring in remote areas. The dynamic dormancy strategy can greatly reduce energy consumption, reduce dependence on external power supply, and reduce maintenance costs.

[0005] To solve the above-mentioned technical problems, the automated monitoring device for tunnel surface settlement provided by this utility model includes: multiple automated settlement monitoring mechanisms and multiple measuring point foundations installed on the tunnel surface. The automated settlement monitoring mechanism includes two beam frame foundations and an installation frame assembly, and the installation frame assembly is installed on the two beam frame foundations.

[0006] The mounting bracket assembly includes two sets of beam mounting holes, two beams, and a reference beam. The two beams are respectively set on the top of the two beam foundations and are fixedly connected to the top of the two beam foundations through the two sets of beam mounting holes. The reference beam is set between the two beams, and the outer walls on both sides of the reference beam are respectively connected to the outer walls of the two beams that are close to each other.

[0007] Two wire-type displacement gauges are installed on one outer wall of the reference beam. Each wire-type displacement gauge contains a wire, and the end of the wire away from the wire-type displacement gauge is connected to the foundation of the corresponding measuring point.

[0008] As a further embodiment of this utility model, a bracket is installed on the top of the corresponding beam foundation, and a solar energy data acquisition device is installed on the bracket. The solar energy data acquisition device includes a waterproof and explosion-proof box, and the data acquisition device is installed inside the waterproof and explosion-proof box.

[0009] As a further embodiment of this utility model, the waterproof and explosion-proof box is also equipped with a lithium battery, an MPPT solar controller and a multi-channel data acquisition module. The multi-channel data acquisition module is model YJ-IDC2004 and supports RS485 / LoRa.

[0010] As a further embodiment of this utility model, the solar energy integrated data acquisition device also includes a solar panel, which is installed on the upper half of the bracket and located above the top of the waterproof and explosion-proof box.

[0011] As a further embodiment of this utility model, the model number of the wire displacement gauge is WPS-SP-1500.

[0012] As a further embodiment of this utility model, the waterproof and explosion-proof box is also equipped with a wireless module, the model of which is 4G / NB-IoT, and the waterproof and explosion-proof box uploads data to a remote cloud platform through the wireless module.

[0013] Compared with related technologies, the automated monitoring device for tunnel surface settlement provided by this utility model has the following advantages:

[0014] 1. This utility model solves the problem of continuous monitoring of ground subsidence in environments with poor visibility, such as dense forests and steep slopes, by setting up a wire displacement gauge array and adopting non-line-of-sight measurement technology. The wire displacement array decomposes long-distance monitoring into multiple short-distance measurement segments through the measuring point foundation, bypassing vegetation obstacles. Based on a flexible path compensation algorithm, the subsidence displacement is dynamically corrected according to the anchor point coordinates and wire angle, which can achieve continuous coverage of any monitoring range.

[0015] 2. This utility model, by setting up a solar integrated data acquisition instrument, adopts solar power supply and low power consumption design, which can realize long-term unattended monitoring in remote areas. The dual-mode power supply design ensures stable power supply for the system under different weather conditions, with a battery life of ≥30 days. The dynamic sleep strategy greatly reduces energy consumption, reduces dependence on external power supply, and reduces maintenance costs, saving manual maintenance costs compared with traditional monitoring solutions. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a block diagram showing the components of a partial solar energy data acquisition device in this utility model.

[0019] In the diagram: 1. Beam frame foundation; 2. Beam frame mounting hole; 3. Beam frame; 4. Base beam; 5. Measuring point foundation; 6. Guy wire; 7. Guy wire displacement gauge; 8. Waterproof and explosion-proof box; 81. Data acquisition instrument; 82. Lithium battery; 83. MPPT solar controller; 84. Multi-channel data acquisition module; 85. Wireless module; 9. Bracket; 10. Solar panel. Detailed Implementation

[0020] Please refer to the following: Figure 1 and Figure 2 ,in, Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a block diagram of the components of a solar energy integrated data acquisition device in this utility model. The automated monitoring device for tunnel surface settlement includes: multiple automated settlement monitoring mechanisms installed on the tunnel surface and multiple measuring point foundations 5. Each automated settlement monitoring mechanism includes two beam frame foundations 1 and a mounting frame assembly, which is installed on the two beam frame foundations 1.

[0021] The mounting frame assembly includes two sets of beam frame mounting holes 2, two beam frames 3, and a reference beam 4. The two beam frames 3 are respectively set on the top of the two beam frame foundations 1 and are fixedly connected to the top of the two beam frame foundations 1 through the two sets of beam frame mounting holes 2. The reference beam 4 is set between the two beam frames 3, and the outer walls on both sides of the reference beam 4 are respectively connected to the outer walls on the sides of the two beam frames 3 that are close to each other.

[0022] Two pull-wire displacement gauges 7 are installed on one side of the outer wall of the reference beam 4. Each pull-wire displacement gauge 7 contains a pull wire 6. The end of the pull wire 6 away from the pull-wire displacement gauge 7 is connected to the foundation 5 of the corresponding measuring point.

[0023] A bracket 9 is installed on the top of the corresponding beam foundation 1. A solar energy data acquisition device is installed on the bracket 9. The solar energy data acquisition device includes a waterproof and explosion-proof box 8, and the data acquisition device 81 is installed inside the waterproof and explosion-proof box 8.

[0024] The waterproof and explosion-proof box 8 is also equipped with a lithium battery 82, an MPPT solar controller 83 and a multi-channel data acquisition module 84. The multi-channel data acquisition module 84 is model YJ-IDC2004 and supports RS485 / LoRa.

[0025] The solar energy integrated data acquisition device also includes a solar panel 10, which is installed on the upper half of the bracket 9 and located above the top of the waterproof and explosion-proof box 8.

[0026] The model number of the wire displacement gauge 7 is WPS-SP-1500.

[0027] The waterproof and explosion-proof box 8 is also equipped with a wireless module 85, which is a 4G / NB-IoT model. The waterproof and explosion-proof box 8 uploads data to a remote cloud platform through the wireless module 85.

[0028] The working principle of the automated monitoring device for tunnel surface settlement provided by this utility model is as follows:

[0029] The first step involves an array of multiple WPS-SP-1500 wire-type displacement gauges 7, which are high-precision wire sensors with a resolution of ≤0.1mm. They are deployed in the monitoring area using a parallel anchoring method. The spring reset mechanism (built into the wire-type displacement gauge 7) and waterproof wires are used to adapt to the vegetation-covered terrain. One end of the wire 6 of the wire-type displacement gauge 7 is connected to the measuring point foundation 5. When the ground surface settles, the measuring point foundation 5 moves accordingly, causing the wire 6 to displace. The wire-type displacement gauge 7 collects this relative displacement of the ground surface in real time and transmits the data to the solar integrated data acquisition instrument 81 through an anti-interference signal line.

[0030] The second step involves a dual-mode power supply design. On sunny days, solar power is prioritized, and when the solar power output exceeds the device's energy consumption, the lithium battery 82 is charged. On cloudy days or when the solar voltage is insufficient, the lithium battery 82 provides power, with a battery life of ≥30 days. Simultaneously, the MPPT algorithm optimizes energy management during periods of insufficient sunlight. The data acquisition unit 81 also employs a dynamic sleep strategy, waking up at preset intervals (e.g., 1 hour) and entering a microampere-level standby mode during non-working periods to reduce energy consumption. After receiving displacement data, the data acquisition unit 81 combines this with a temperature compensation algorithm to eliminate environmental interference. The temperature compensation formula is as follows:

[0031]

[0032] in, To compensate for the displacement (mm). This is the sensor's raw reading (mm). The comprehensive coefficient of thermal expansion ( / ℃, typical value for stainless steel is 17×10) is given. 6 / ℃), Standard range (mm) The current temperature (°C) This is a reference temperature (usually taken as 20℃).

[0033] The third step: The processed displacement data is uploaded to the remote cloud platform via the 4G / NB-IoT wireless module 85. The cloud platform analyzes the data through threshold warning and trend analysis models. If an abnormal settlement is detected, it can push the abnormal information in real time within 10 seconds, supporting SMS / APP multi-channel push, and timely warning of sudden settlement risks.

[0034] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0035] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. An automated monitoring device for tunnel surface settlement, characterized in that, include: Multiple automated settlement monitoring mechanisms and multiple measuring point foundations are installed on the tunnel surface. The automated settlement monitoring mechanism includes two beam frame foundations and an installation frame assembly, which is installed on the two beam frame foundations. The mounting bracket assembly includes two sets of beam mounting holes, two beams, and a reference beam. The two beams are respectively set on the top of the two beam foundations and are fixedly connected to the top of the two beam foundations through the two sets of beam mounting holes. The reference beam is set between the two beams, and the outer walls on both sides of the reference beam are respectively connected to the outer walls of the two beams that are close to each other. Two wire-type displacement gauges are installed on one side of the outer wall of the reference beam. Each wire-type displacement gauge contains a wire, and the end of the wire away from the wire-type displacement gauge is connected to the foundation of the corresponding measuring point.

2. The automated monitoring device for tunnel surface settlement according to claim 1, characterized in that: A bracket is installed on the top of the corresponding beam foundation, and a solar energy data acquisition device is installed on the bracket. The solar energy data acquisition device includes a waterproof and explosion-proof box, and the data acquisition device is installed inside the waterproof and explosion-proof box.

3. The automated monitoring device for tunnel surface settlement according to claim 2, characterized in that: The waterproof and explosion-proof box is also equipped with a lithium battery, an MPPT solar controller, and a multi-channel data acquisition module. The multi-channel data acquisition module is model YJ-IDC2004 and supports RS485 / LoRa.

4. The automated monitoring device for tunnel surface settlement according to claim 2, characterized in that: The solar energy collection device also includes a solar panel, which is installed on the upper half of the bracket and located above the top of the waterproof and explosion-proof box.

5. The automated monitoring device for tunnel surface settlement according to claim 1, characterized in that: The model number of the wire displacement gauge is WPS-SP-1500.

6. The automated monitoring device for tunnel surface settlement according to claim 3, characterized in that: The waterproof and explosion-proof box is also equipped with a wireless module, which is a 4G / NB-IoT model. The waterproof and explosion-proof box uploads data to a remote cloud platform through the wireless module.

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