Multi-parameter fusion rock slope landslide monitoring device

Abstract

The utility model relates to rock quality side slope landslide monitoring technical field, and disclose a multi parameter fusion's rock quality side slope landslide monitoring equipment, including have: side slope, the inside of side slope is provided with crack, monitoring subassembly, monitoring subassembly sets up inside in side slope, wherein, monitoring subassembly includes fixed point part, monitoring site no.

Description

Technical Field

[0001] This utility model relates to the field of rock slope landslide monitoring technology, specifically to a rock slope landslide monitoring device with multi-parameter fusion. Background Technology

[0002] Rock slopes serve as a crucial interface between mountainous engineering projects and the natural geological environment, and their stability directly impacts the safe operation of highways, mines, and water conservancy projects. These slopes are formed from various types of rock masses through long-term weathering and tectonic processes, and commonly contain weak structural surfaces such as joints and fissures. These surfaces are prone to becoming potential trigger points for landslides under conditions of groundwater infiltration, seismic loads, or human disturbance. For example, the shear strength of granite slopes can decrease by more than 30% after being soaked by rainwater; shale slopes are prone to surface spalling and deep-seated slippage due to mineral swelling upon contact with water. Traditional slope instability often exhibits a "gradual development" characteristic—slowly expanding from deep fissures to surface macroscopic deformation, and finally to instability and sliding, a process that can last from months to years. However, critical warning windows are often missed due to limitations in monitoring technology. Therefore, capturing subtle changes in acoustics, temperature, and stress within the rock mass through multi-parameter monitoring is of great significance for early identification of rock slope instability risks.

[0003] In actual engineering, slope instability often begins with the slow expansion of deep fissures. As rock fissures gradually connect under stress, they are accompanied by the release of low-frequency sound waves and the decay of rock mechanical properties. However, traditional monitoring equipment lacks acoustic sensing capabilities and is unable to capture this early sign, often resulting in early warnings lagging behind the actual development of the danger. Traditional monitoring can only indirectly infer the hydrological and thermal state through surface soil moisture or external meteorological data, and cannot directly obtain the temperature dynamics and seepage paths of deep rock masses. The accuracy of identifying the chain reaction of "sudden increase in water content - sudden change in temperature - fissure expansion" is insufficient, and it is very easy to miss potential risks in complex geological environments. Utility Model Content

[0004] The purpose of this invention is to provide a multi-parameter fusion rock slope landslide monitoring device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-parameter fusion rock slope landslide monitoring device, comprising: a slope, wherein cracks are provided inside the slope;

[0006] Monitoring components are installed inside the slope;

[0007] The monitoring component includes a fixed point and a monitoring point one, both of which are located inside the slope.

[0008] A power supply component, wherein the power supply component is disposed inside the slope;

[0009] The power supply component includes a second monitoring part and a power supply part. The second monitoring part is located inside the slope, and the power supply part is located at the top of the slope.

[0010] Preferably, the fixed point includes a mounting frame, which is fixedly installed inside the slope. A positioning module is fixedly installed inside the mounting frame. A solar power supply panel is fixedly installed on one side of the mounting frame. Soil moisture sensors and meteorological monitoring modules are fixedly installed on both sides of the top of the slope. The positioning module is electrically connected to the solar power supply panel.

[0011] Preferably, the monitoring part includes a stress sensor, which is installed inside the crack. An anchor rod is fixedly installed on one side of the stress sensor. A housing is fixedly installed inside the slope. A vibration sensor is fixedly installed inside the housing. A cover is fixedly installed on the top of the housing. One end of the anchor rod is fixedly installed to the slope.

[0012] Preferably, the second monitoring point includes a temperature sensor, which is installed inside the slope. A connecting frame is fixedly installed on one side of the temperature sensor, and a rock acoustic monitoring module is fixedly installed on one side of the connecting frame. Both the connecting frame and the rock acoustic monitoring module are installed inside the slope.

[0013] Preferably, the power supply unit includes a wireless charging module, which is located inside the slope. A receiving coil is provided on one side of the wireless charging module, and a pole is fixedly installed on the top of the slope. A transmitting coil is fixedly installed on the top of the pole.

[0014] Preferably, the wireless charging module and the receiving coil are respectively disposed on one side of the temperature sensor and the stress sensor, and the wireless charging module is electrically connected to the temperature sensor and the stress sensor respectively.

[0015] This invention provides a multi-parameter fusion monitoring device for rock slope landslides. It has the following beneficial effects:

[0016] (1) By setting up a second monitoring point, the rock mass acoustic monitoring module adopts a distributed optical fiber sensor and is deployed along the slope borehole to capture the 10-1000Hz sound wave signal generated by the expansion of rock mass fissures in real time. The trend of fissure penetration is predicted by the change of sound velocity. At the same time, temperature sensors are integrated at deep nodes to monitor groundwater heat exchange anomalies. This effectively makes up for the shortcomings of traditional monitoring that only relies on parameters such as displacement and stress and lacks sufficient perception of the dynamic hydrological and thermal properties inside the rock mass. This makes the monitoring dimensions of the physical properties inside the slope more comprehensive and further improves the accuracy of identifying potential disaster signs.

[0017] (2) By setting up a power supply part, when the receiving coil is within the range of the alternating magnetic field generated by the transmitting coil, according to the law of electromagnetic induction, an alternating electromotive force will be induced at both ends of the coil. After rectification and filtering circuit, it will be converted into a stable DC voltage to charge the built-in lithium battery of the sensor. This wireless charging of the sensor avoids the problem of secondary drilling required for the replacement of traditional cables. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is the left view of the present invention;

[0020] Figure 3 This is a left view of the internal structure of this utility model;

[0021] Figure 4 This is a right view of the present invention;

[0022] Figure 5 This utility model Figure 4 A magnified view of part A;

[0023] Figure 6 This utility model Figure 3 A magnified view of part B;

[0024] Figure 7 This is a right view of the internal structure of this utility model.

[0025] In the diagram: 1. Slope, 2. Crack, 3. Monitoring component, 31. Fixed point, 311. Mounting frame, 312. Positioning module, 313. Solar power supply panel, 314. Soil moisture sensor, 315. Meteorological monitoring module, 32. Monitoring point one, 321. Stress sensor, 322. Anchor bolt, 323. Housing, 324. Vibration sensor, 325. Cover, 4. Power supply component, 41. Monitoring point two, 411. Temperature sensor, 412. Connecting frame, 413. Rock acoustic monitoring module, 42. Power supply point, 421. Wireless charging module, 422. Receiving coil, 423. Pole, 424. Transmitting coil. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] Example 1

[0029] A preferred embodiment of the multi-parameter fusion rock slope landslide monitoring device provided by this utility model is, for example... Figure 1-7 As shown: A multi-parameter fusion rock slope landslide monitoring device, including: slope 1, with cracks 2 inside slope 1;

[0030] Monitoring component 3 is installed inside slope 1;

[0031] Among them, the monitoring component 3 includes a fixed point 31 and a monitoring point 32, both of which are located inside the slope 1;

[0032] The fixed point 31 includes a mounting frame 311, which is fixedly installed inside the slope 1. A positioning module 312 is fixedly installed inside the mounting frame 311. A solar power supply panel 313 is fixedly installed on one side of the mounting frame 311. A soil moisture sensor 314 and a meteorological monitoring module 315 are fixedly installed on both sides of the top of the slope 1. The positioning module 312 is electrically connected to the solar power supply panel 313.

[0033] The monitoring part 32 includes a stress sensor 321, which is installed inside the crack 2. An anchor rod 322 is fixedly installed on one side of the stress sensor 321. A housing 323 is fixedly installed inside the slope 1. A vibration sensor 324 is fixedly installed inside the housing 323. A cover 325 is fixedly installed on the top of the housing 323. One end of the anchor rod 322 is fixedly installed to the slope 1.

[0034] Solar panel 313 provides power to positioning module 312;

[0035] The positioning module 312 adopts a Beidou / GPS dual-mode positioning module to capture the three-dimensional deformation of the slope surface and deep parts in real time. The soil moisture sensor 314 monitors the change of slope water content and identifies the groundwater seepage path. The stress sensor 321 is buried at the key fissure 2 to record the stress release process of the rock mass. The vibration sensor 324 captures the micro-vibration signal inside the slope and provides early warning of frictional sliding of loose rock mass. The meteorological monitoring module 315 integrates a rain gauge, wind speed sensor and temperature and humidity sensor, and is installed at the top of the slope 1. The data sampling frequency is 1 time / minute, and it synchronously collects external environmental parameters such as rainfall and wind speed. All monitoring data are aggregated to the edge computing terminal through LoRa wireless transmission technology. The machine learning algorithm built into the terminal performs spatiotemporal correlation analysis on multiple parameters. For example, when the displacement rate is >5mm / d and the water content suddenly increases by 20% and the stress drops sharply, the landslide warning level is automatically triggered and pushed to the monitoring platform through the 5G network.

[0036] Example 2

[0037] Based on Example 1, a preferred embodiment of the multi-parameter fusion rock slope landslide monitoring device provided by this utility model is as follows: Figure 1-7 As shown: Power supply component 4, which is installed inside the slope 1;

[0038] The power supply component 4 includes a monitoring part 2 41 and a power supply part 42. The monitoring part 2 41 is located inside the slope 1, and the power supply part 42 is located at the top of the slope 1.

[0039] Monitoring point 2 41 includes a temperature sensor 411, which is installed inside the slope 1. A connecting frame 412 is fixedly installed on one side of the temperature sensor 411, and a rock acoustic monitoring module 413 is fixedly installed on one side of the connecting frame 412. Both the connecting frame 412 and the rock acoustic monitoring module 413 are installed inside the slope 1.

[0040] The power supply unit 42 includes a wireless charging module 421, which is installed inside the slope 1. A receiving coil 422 is provided on one side of the wireless charging module 421. A pole 423 is fixedly installed on the top of the slope 1, and a transmitting coil 424 is fixedly installed on the top of the pole 423. The wireless charging module 421 and the receiving coil 422 are respectively located on one side of the temperature sensor 411 and the stress sensor 321. The wireless charging module 421 is electrically connected to the temperature sensor 411 and the stress sensor 321 respectively.

[0041] The rock mass acoustic monitoring module 413 is equipped with distributed fiber optic sensors, which are deployed along the entire length of the pre-drilled holes along slope 1. The optical fibers are closely attached to the rock surface. With the help of Brillouin scattering technology, the module can capture the 10-1000Hz broadband acoustic signal generated during the expansion of rock fissures in real time. By analyzing the changes in the propagation speed of sound waves in the rock mass, the module can accurately predict the expansion direction and penetration trend of fissures, providing acoustic characteristic basis for identifying potential sliding risks. At the same time, the temperature sensor 411 integrated in the deep monitoring node of the slope penetrates into key areas inside the rock mass (such as groundwater enrichment zones and fault fracture zones) to continuously monitor the subtle fluctuations in the rock mass temperature field. When encountering abnormal groundwater heat exchange in the hot spring area slope or drastic temperature changes caused by freeze-thaw cycles in cold regions, the sensor can quickly capture this change in physical characteristics.

[0042] The transmitting coil 424 is deployed on the upright 423 at the top of the slope 1. It is provided with high-frequency alternating current by the driving circuit of the wireless charging module 421. When the current passes through the transmitting coil 424, it generates an alternating magnetic field around it, forming an energy radiation field. The receiving coil 422 in the deep borehole is integrated with monitoring nodes such as stress sensor 321 and temperature sensor 411. It adopts a miniaturized design and fits into the sensor shell. When the receiving coil 422 is within the range of the alternating magnetic field generated by the transmitting coil 424, according to the law of electromagnetic induction, an alternating electromotive force will be induced at both ends of the coil. After rectification and filtering circuit, it is converted into a stable DC voltage to charge the built-in lithium battery of the sensor.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-parameter fusion rock slope landslide monitoring device, characterized in that, It includes: a slope (1), wherein cracks (2) are provided inside the slope (1); Monitoring component (3), said monitoring component (3) is disposed inside the slope (1); The monitoring component (3) includes a fixed point (31) and a monitoring point (32), both of which are located inside the slope (1). Power supply component (4), wherein the power supply component (4) is disposed inside the slope (1); The power supply component (4) includes a monitoring part (41) and a power supply part (42). The monitoring part (41) is located inside the slope (1), and the power supply part (42) is located at the top of the slope (1).

2. The multi-parameter fusion rock slope landslide monitoring device according to claim 1, characterized in that: The fixed point (31) includes a mounting frame (311), which is fixedly installed inside the slope (1). A positioning module (312) is fixedly installed inside the mounting frame (311). A solar power supply panel (313) is fixedly installed on one side of the mounting frame (311). A soil moisture sensor (314) and a meteorological monitoring module (315) are fixedly installed on both sides of the top of the slope (1). The positioning module (312) is electrically connected to the solar power supply panel (313).

3. The multi-parameter fusion rock slope landslide monitoring device according to claim 1, characterized in that: The monitoring part (32) includes a stress sensor (321), which is located inside the crack (2). An anchor rod (322) is fixedly installed on one side of the stress sensor (321). A shell (323) is fixedly installed inside the slope (1). A vibration sensor (324) is fixedly installed inside the shell (323). A cover (325) is fixedly installed on the top of the shell (323). One end of the anchor rod (322) is fixedly installed to the slope (1).

4. The multi-parameter fusion rock slope landslide monitoring device according to claim 1, characterized in that: The second monitoring part (41) includes a temperature sensor (411), which is located inside the slope (1). A connecting frame (412) is fixedly installed on one side of the temperature sensor (411), and a rock acoustic monitoring module (413) is fixedly installed on one side of the connecting frame (412). Both the connecting frame (412) and the rock acoustic monitoring module (413) are located inside the slope (1).

5. The multi-parameter fusion rock slope landslide monitoring device according to claim 1, characterized in that: The power supply unit (42) includes a wireless charging module (421), which is located inside the slope (1). A receiving coil (422) is provided on one side of the wireless charging module (421), and a pole (423) is fixedly installed on the top of the slope (1). A transmitting coil (424) is fixedly installed on the top of the pole (423).

6. The multi-parameter fusion rock slope landslide monitoring device according to claim 5, characterized in that: The wireless charging module (421) and the receiving coil (422) are respectively disposed on one side of the temperature sensor (411) and the stress sensor (321), and the wireless charging module (421) is electrically connected to the temperature sensor (411) and the stress sensor (321).

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