A device for detecting displacement of a slope soil body and a monitoring system

Abstract

The application relates to the technical field of building construction, in particular to a slope soil body displacement detection device and a monitoring system and a slope soil body displacement monitoring device. The slope soil body displacement monitoring device comprises a first support and a second support, a bearing cable is arranged between the first support and the second support, a plurality of mark cables are also arranged on the bearing cable at intervals, and an angle measuring disc is arranged at the connecting position of the mark cable and the bearing cable; the two ends of the bearing cable are provided with lengthening sections, displacement pulleys and fixing components are arranged on the first support and the second support, the bearing cable is fixedly connected with the first support and the second support in the locking state of the fixing components; and the bearing cable can slide between the first support and the second support in the unlocking state of the fixing components. The structure is arranged so that the application can continue to detect the displacement of the soil body after the slope sliding, the application can thus give a warning for the secondary slope sliding of the slope, and the personnel casualty and property loss are effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a slope soil displacement detection device and monitoring system. Background Technology

[0002] A slope is a sloping surface or underground structure formed by topographical undulations or artificial excavation. Slopes are typically composed of soil, rock, or other geological materials, and their gradient can vary depending on topography, engineering requirements, or geological conditions. Slopes play a vital role in civil engineering, geological engineering, and urban planning, and are also significant geological features contributing to geological disasters.

[0003] In geological engineering, the stability and deformation characteristics of slopes are important objects of geological disaster monitoring and prevention. Monitoring and analyzing slopes can effectively prevent and mitigate the occurrence of geological disasters.

[0004] In existing technologies, the stability of slope structures is mainly reflected by monitoring the displacement of the slope soil.

[0005] For example, Chinese invention patent application number CN201910021525.6 discloses a slope displacement monitoring device and method. The slope displacement monitoring device includes multiple measuring units and fixed supports. Each measuring unit includes a unidirectional dial indicator, a probe, and a plate. One end of the probe is vertically fixed to one side of the plate, and the other end is used to insert into the soil of the slope to be monitored. The probe of the unidirectional dial indicator is vertically pressed against the other side of the plate, and the dial indicator body is detachably fixed. The fixed support is erected on the outer side of the slope. Several measuring units are vertically inserted at the top of the slope and horizontally inserted on the slope surface. Each plate of the measuring units inserted on the slope surface has a horizontal and a vertical scale line on the side of its top that rests against the probe. The minimum graduation on both the horizontal and vertical scale lines is 0.1 mm. A zero graduation is marked at the intersection of the horizontal and vertical scale lines at the center of each plate. Compared with the prior art, the advantages of this invention are: the slope displacement monitoring device of this invention has a simple structure, low cost, and can simultaneously detect the displacement of the slope top and slope surface with high accuracy, providing a reliable basis for slope displacement monitoring. Depending on the accuracy of the unidirectional dial gauge, the detection accuracy of this invention for slope displacement can reach above 0.01 mm. The slope displacement monitoring method of this invention has simple steps, is easy to operate, and can achieve rapid and accurate monitoring of the displacement of the slope top and slope surface. However, there are still shortcomings, as detailed below: The aforementioned devices can only detect soil displacement before a landslide occurs. Once a landslide occurs, the displacement monitoring devices will also be destroyed, making it impossible to monitor the displacement data of the slope soil after the landslide. Consequently, it is difficult to provide early warning when a secondary landslide occurs, increasing the risk of casualties and property damage.

[0006] Therefore, there is an urgent need for a slope displacement monitoring device that can monitor the displacement data of the soil after a slope landslide. Summary of the Invention

[0007] The purpose of this invention is to address the problem that existing slope displacement monitoring devices can only detect soil displacement before a landslide occurs. Once a landslide occurs, the displacement monitoring device is also destroyed, making it impossible to monitor the displacement data of the slope soil after the landslide. Consequently, it is difficult to provide early warning of secondary landslides, increasing the risk of casualties and property damage. This invention provides a slope soil displacement detection device and monitoring system.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A slope soil displacement detection device includes a first support and a second support. The first support is set at the top of the slope, and the second support is set at the bottom of the slope. A load-bearing steel cable is set between the first support and the second support. The load-bearing steel cable is parallel to the slope surface. Several marker steel cables are also spaced on the load-bearing steel cable. One end of the marker steel cable is anchored into the soil layer of the slope surface, and the other end is connected to the load-bearing steel cable. An angle measuring disc is also set at the connection between the marker steel cable and the load-bearing steel cable. The angle measuring disc is used to measure the angle change data between the load-bearing steel cable and the marker steel cable. The load-bearing steel cable has extension sections at both ends. The first and second supports are equipped with displacement pulleys and fixing components. The load-bearing steel cable is connected to the displacement pulleys, and the extension sections are connected to the fixing components. The fixing components have a locked state and an unlocked state. When the fixing components are locked, the load-bearing steel cable is fixedly connected to the first and second supports. When the fixing components are unlocked, the load-bearing steel cable can slide between the first and second supports.

[0009] Preferably, a pressure plate is provided at one end of the marking steel cable that is anchored into the soil layer of the slope, and the pressure plate is configured as a flat plate structure.

[0010] Preferably, the marking cable forms an acute angle greater than 90 degrees with the slope edge line on the top side of the slope.

[0011] Preferably, an indicator arrow is provided at the end where the marking cable connects to the load-bearing cable.

[0012] Preferably, the angle measuring disc is further provided with an angle sensor, which is used to measure the angle change data between the load-bearing steel cable and the marking steel cable.

[0013] Preferably, the marking cable is further provided with a tightening device, which is used to keep the marking cable taut at all times.

[0014] Preferably, the heights of the first bracket and the second bracket are adjustable.

[0015] Preferably, a horizontal protective net is provided between adjacent marking cables.

[0016] A slope soil displacement monitoring system includes the aforementioned detection device, and further includes an internal soil displacement detection device, a slope surface and retaining wall crack monitoring device, a stress monitoring device, an earth pressure monitoring device, and an environmental monitoring device. The internal soil displacement detection device monitors the displacement data of the soil inside the slope; the slope surface and retaining wall crack monitoring device monitors the change in the width of the cracks; the stress monitoring device is located at the end of the anchor cable and monitors the stress change data of the anchor cable; the earth pressure monitoring device is located on the side of the retaining wall in contact with the slope and monitors the pressure data exerted by the slope on the retaining wall; the environmental monitoring device monitors rainfall data, slope groundwater level data, wind speed data, and environmental temperature and humidity data.

[0017] Preferably, the slope surface and retaining wall crack monitoring device is installed at the widest point of the crack.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The slope soil displacement detection device of the present invention, with its structural configuration, allows the invention to continue detecting soil displacement after a slope landslide. This enables the invention to provide early warning of secondary landslides, effectively reducing casualties and property damage. Furthermore, in this embodiment, the marker cable anchored into the slope soil layer reinforces the soil layer, reducing the risk of landslides. Additionally, the marker cable anchored into the slope soil layer can also prevent falling rocks and soil from rolling down the slope, slowing their descent and thus reducing the damage to the building structures at the bottom of the slope. 2. The slope soil displacement detection device of the present invention, wherein the bearing plate is provided at the end of the marking steel cable, which increases the contact area between the marking steel cable anchor and the slope soil. This structural arrangement allows the slope soil to apply greater downward pressure to the marking steel cable, thus effectively reducing the risk of the marking steel cable detaching from the slope soil anchor when displacement or sliding occurs. This improves the stability and reliability of the invention in practical use. 3. The slope soil displacement detection device of the present invention includes a tightening device that can retract the marking steel cable after the slope displacement is completed, ensuring that the marking steel cable is always taut, thereby improving the accuracy of the slope soil displacement data measured by the present invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a slope soil displacement detection device. Figure 2 This is a structural diagram of the angle measuring disc. Figure 3 This is a detailed structural diagram of the pressure plate.

[0020] The markings in the diagram are: 1-First support, 2-Second support, 3-Bearing steel cable, 4-Identifying steel cable, 5-Angle measuring disc, 6-Extended section, 7-Displacement pulley, 8-Fixing component, 9-Pressure plate, 10-Indicating arrow, 11-Tightening device, 12-Angle sensor, 13-Loop, 14-Rope loop, 15-First pressure zone, 16-Second pressure zone. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Therefore, the following detailed description of embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely illustrates some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Example 1 like Figure 1 and Figure 2 As shown, the slope soil displacement detection device of the present invention includes a first support 1 and a second support 2. The first support 1 is set at the top of the slope, and the second support 2 is set at the bottom of the slope. A load-bearing steel cable 3 is set between the first support 1 and the second support 2. The load-bearing steel cable 3 is set parallel to the slope surface. A plurality of marker steel cables 4 are also set at intervals on the load-bearing steel cable 3. One end of the marker steel cable 4 is anchored into the soil layer of the slope surface, and the other end is connected to the load-bearing steel cable 3. An angle measuring disc 5 is also set at the connection between the marker steel cable 4 and the load-bearing steel cable 3. The angle measuring disc 5 is used to measure the angle change data between the load-bearing steel cable 3 and the marker steel cable 4. The load-bearing steel cable 3 has extension sections 6 at both ends. The first support 1 and the second support 2 are provided with displacement pulleys 7 and fixing components 8. The load-bearing steel cable 3 is connected to the displacement pulleys 7, and the extension sections 6 are connected to the fixing components 8. The fixing components 8 have a locked state and an unlocked state. When the fixing components 8 are locked, the load-bearing steel cable 3 is fixedly connected to the first support 1 and the second support 2. When the fixing components 8 are unlocked, the load-bearing steel cable 3 can slide between the first support 1 and the second support 2.

[0028] Specifically, the working principle of the soil displacement monitoring device of the present invention is as follows: When the soil on the slope slips, the marker cable 4 anchored in the slope soil layer can be driven to move towards the bottom of the slope, thereby causing the angle between the marker cable 4 and the load-bearing cable 3 to change. By substituting the length of the marker cable 4 and the angle change between the marker cable 4 and the load-bearing cable 3 into trigonometric function formulas, the distance of the slope soil displacement can be calculated. In this invention, one end of the marker cable 4 is anchored in the soil layer on the slope surface, and the other end is connected to the load-bearing cable 3. When a landslide occurs on the slope, the marker cable 4 slides along with the soil layer. The cooperation between the marker cable 4 and the load-bearing cable 3 will not be destroyed by the impact force of the slope soil slippage. Therefore, this invention can continue to detect the soil displacement after the slope landslide. Furthermore, in this embodiment, it is considered that when a landslide occurs, the marking cable 4 will be pushed by the soil towards the bottom of the slope. During this process, the marking cable 4 will move towards the maximum measurement scale of the angle measuring disc 5, causing the dynamic measurement range of the invention to decrease in subsequent use, or even rendering the invention unusable in subsequent measurements. Based on the above reasons, in this embodiment, the displacement pulley 7 is configured to cooperate with the fixing component 8. When the fixing component 8 is unlocked, the load-bearing cable 3 can slide between the first support 1 and the second support 2. By sliding the load-bearing cable 3, the marking cable 4 can move towards the minimum measurement scale of the angle measuring disc 5, thereby restoring the dynamic measurement range of the invention. It should be noted that in this embodiment, when a landslide occurs on the slope, some of the marker cables 4 may detach from their anchorage with the slope, resulting in incomplete slope displacement data detection. In this case, workers can use a pulley assembly in conjunction with the load-bearing cable 3 in this invention to slide it to the part of the marker cable 4 where the anchorage has detached, and re-establish its connection with the slope soil layer.

[0029] Through the aforementioned technical means, this invention can provide early warning of secondary landslides on slopes, effectively reducing casualties and property losses. Furthermore, in this embodiment, the marker cable 4, anchored into the soil layer of the slope, can also reinforce the soil layer, reducing the risk of landslides. Moreover, the marker cable 4 anchored into the soil layer of the slope can also prevent falling rocks and soil from the slope, slowing their descent and thus reducing the damage to the building structures at the bottom of the slope caused by the falling rocks and soil.

[0030] In this embodiment, the fixing component 8 includes a roller, a drive motor, a limiting plate, and a limiting pin. The extended section 6 is wound around the roller. The drive motor is connected to the roller and can drive the roller to rotate clockwise or counterclockwise. The roller is provided with a limiting hole. The pin passes through the limiting hole and is inserted into the limiting plate, which can lock the fixing component 8, preventing the roller from rotating. Removing the limiting pin unlocks the fixing component 8, allowing the roller to rotate normally under the drive of the drive motor.

[0031] As a preferred embodiment, based on the above method, a pressure plate 9 is further provided at one end of the marking steel cable 4 that is anchored into the soil layer of the slope, and the pressure plate 9 is configured as a flat plate structure.

[0032] In this embodiment, the bearing plate 9 is provided at the end of the marking steel cable 4, which increases the contact area between the marking steel cable 4 anchor and the slope soil. This structural arrangement allows the slope soil to exert greater downward pressure on the marking steel cable 4, thus effectively reducing the risk of the marking steel cable 4 detaching from the slope soil when displacement or sliding occurs. This improves the stability and reliability of the invention in practical use.

[0033] Example 2 like Figure 2 and Figure 3 As shown, the slope soil displacement detection device of the present invention, based on the above-mentioned method, further includes a collar 13 on the bearing plate 9 and a rope loop 14 at the end of the marking steel cable 4. The bearing plate 9 and the marking steel cable 4 are fixed by the engagement of the collar and the rope loop. This structural arrangement allows for a movable connection between the bearing plate 9 and the marking steel cable 4. When the bearing plate 9 is embedded in the slope soil layer, adjusting the angle between it and the marking steel cable 4 increases the anchoring depth of the marking steel cable 4 in the slope soil layer. Thus, when the slope soil undergoes displacement or sliding, the risk of the marking steel cable 4 detaching from the slope soil anchorage can be further reduced.

[0034] As a preferred embodiment, based on the above method, the pressure plate 9 is further divided into a first pressure-bearing area 15 and a second pressure-bearing area 16 along its horizontal axis. The first pressure-bearing area 15 corresponds to the top side of the slope, and the second pressure-bearing area 16 corresponds to the bottom side of the slope. The area of ​​the first pressure-bearing area 15 is smaller than the area of ​​the second pressure-bearing area 16. The collar 13 is disposed in the first pressure-bearing area 15.

[0035] With this structural design, the pressure exerted by the soil on the second bearing zone is greater than the pressure exerted by the soil on the first bearing zone. As the bearing plate 9 slides towards the bottom of the slope with the slope soil, it can generate a clockwise deflection tendency, ensuring that the bearing plate 9 can always be embedded in the slope soil, thus further reducing the risk of the marking steel cable 4 detaching from the slope soil anchorage.

[0036] As a preferred embodiment, based on the above method, the marking steel cable 4 further forms an acute angle greater than 90 degrees with the slope edge line on the top side of the slope. This structural arrangement increases the dynamic measurement range of this invention, further improving its practicality in actual use.

[0037] As a preferred embodiment, based on the above method, an indicator arrow 10 is further provided at the end where the marking steel cable 4 connects to the load-bearing steel cable 3. This structural design improves the convenience of reading angle data in practical use and also enhances the accuracy of manual angle data reading to a certain extent.

[0038] As a preferred embodiment, based on the above method, the angle measuring disk 5 is further provided with an angle sensor 12, which is used to measure the angle change data between the load-bearing steel cable 3 and the marking steel cable 4.

[0039] In this embodiment, the angle sensor enables the invention to detect the displacement data of the edge surface soil in real time, thus improving the timeliness of the early warning. Furthermore, the angle sensor eliminates the need for manual collection and recording of the angle change data between the load-bearing steel cable 3 and the marker steel cable 4, further enhancing the practicality of the invention in real-world applications.

[0040] Example 3 like Figure 1 and Figure 2 As shown, the slope soil displacement detection device of the present invention, based on the above method, further includes a tightening device 11 on the marking steel cable 4, which is used to keep the marking steel cable 4 taut at all times.

[0041] In the above embodiment, the bearing plate 9 is provided at the end of the marking steel cable 4, which increases the contact area between the marking steel cable 4 and the slope soil. This structural arrangement allows the slope soil to exert greater downward pressure on the marking steel cable 4, thus effectively reducing the risk of the marking steel cable 4 detaching from the slope soil when displacement or sliding occurs. This improves the stability and reliability of the invention in practical use. However, there are still shortcomings. When large-scale movement of the slope soil occurs, the bearing plate 9 is still at risk of being pushed towards the slope surface, causing the marking steel cable 4 to loosen and affecting the accuracy of displacement measurement. For these reasons, in this embodiment, the tightening device 11 is provided. The tightening device 11 can retract the marking steel cable 4 after the slope displacement is completed, ensuring that the marking steel cable 4 remains taut at all times, thereby improving the accuracy of the slope soil displacement data measured by the invention. Specifically, in this embodiment, the tightening device 11 is an electric winch powered by a battery. The electric winch winds up and down the marker cable 4, ensuring that the marker cable 4 remains taut at all times. Furthermore, the electric winch used in this embodiment has a length measurement function. Thus, when the release length of the marker cable 4 changes, this invention can make corresponding adjustments to the length data of the marker cable 4 when calculating the slope soil displacement data, ensuring the accuracy of the measurement data.

[0042] As a preferred embodiment, based on the above method, the heights of the first support 1 and the second support 2 are further adjustable. This structural arrangement prevents the load-bearing steel cable 3 from being buried by slipping soil, further improving the practicality of the invention in actual use. On the other hand, by adjusting the heights of the first support 1 and the second support 2, the length of the marker steel cable 4 suspended can be changed, thereby adjusting the sensitivity of the invention in measuring soil displacement, further improving the practicality of the invention in actual use.

[0043] As a preferred embodiment, based on the above method, a horizontal protective net is further provided between adjacent marker cables 4. With this structural arrangement, the protective net can block soil clods and gravel sliding down the slope, improving the safety of slope monitoring personnel.

[0044] Example 4 like Figures 1 to 3As shown, the slope soil displacement monitoring system of the present invention includes the aforementioned detection device, and further includes an internal soil displacement detection device, a slope surface and retaining wall crack monitoring device, a stress monitoring device, an earth pressure monitoring device, and an environmental monitoring device. The internal soil displacement detection device is used to monitor the displacement data of the soil inside the slope; the slope surface and retaining wall crack monitoring device is used to monitor the change data of crack width; the stress monitoring device is installed at the end of the anchor cable and is used to monitor the change data of the stress on the anchor cable; the earth pressure monitoring device is installed on the side of the retaining wall in contact with the slope and is used to monitor the pressure data exerted by the slope on the retaining wall; the environmental monitoring device is used to monitor rainfall data, slope groundwater level data, wind speed data, and environmental temperature and humidity data.

[0045] As a preferred embodiment, based on the above method, the slope surface and retaining wall crack monitoring device is further installed at the widest point of the crack.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slope soil displacement detection device, characterized in that, The system includes a first support and a second support. The first support is located at the top of the slope, and the second support is located at the bottom of the slope. A load-bearing steel cable is installed between the first support and the second support. The load-bearing steel cable is parallel to the slope surface. Several marker steel cables are also installed at intervals on the load-bearing steel cable. One end of each marker steel cable is anchored into the soil layer of the slope surface, and the other end is connected to the load-bearing steel cable. An angle measuring disc is also installed at the connection point between the marker steel cable and the load-bearing steel cable. The angle measuring disc is used to measure the angle change data between the load-bearing steel cable and the marker steel cable. The load-bearing steel cable has extension sections at both ends. The first bracket and the second bracket are provided with displacement pulleys and fixing components. The load-bearing steel cable is connected to the displacement pulleys, and the extension sections are connected to the fixing components. The fixing components have a locked state and an unlocked state. When the fixing components are locked, the load-bearing steel cable forms a fixed connection with the first bracket and the second bracket. With the fixed component unlocked, the load-bearing steel cable can slide between the first bracket and the second bracket, so that the marking steel cable moves toward the smallest measurement scale of the angle measuring disc, thereby restoring the dynamic measurement range of the angle measuring disc.

2. The slope soil displacement detection device according to claim 1, characterized in that, The end of the marking steel cable that is anchored into the soil layer of the slope is equipped with a pressure plate, which is a flat plate structure.

3. The slope soil displacement detection device according to claim 2, characterized in that, The marking cable forms an obtuse angle greater than 90 degrees with the slope edge line on the top side of the slope.

4. The slope soil displacement detection device according to claim 3, characterized in that, An indicator arrow is provided at one end of the marking cable that connects to the load-bearing cable.

5. The slope soil displacement detection device according to claim 4, characterized in that, The angle measuring disc is also equipped with an angle sensor, which is used to measure the angle change data between the load-bearing steel cable and the marking steel cable.

6. The slope soil displacement detection device according to claim 5, characterized in that, The marking cable is also equipped with a tightening device, which is used to keep the marking cable taut at all times.

7. The slope soil displacement detection device according to claim 6, characterized in that, The heights of the first and second supports are adjustable.

8. The slope soil displacement detection device according to claim 7, characterized in that, A horizontal protective net is installed between adjacent steel cables used for marking.

9. A slope soil displacement monitoring system, characterized in that, The device includes the slope soil displacement detection device according to any one of claims 1-8, and further includes an internal soil displacement detection device, a slope surface and retaining wall crack monitoring device, a stress monitoring device, an earth pressure monitoring device, and an environmental monitoring device; the internal soil displacement detection device is used to monitor the displacement data of the soil inside the slope, and the slope surface and retaining wall crack monitoring device is used to monitor the change data of crack width; the stress monitoring device is installed at the end of the anchor cable, and the stress monitoring device is used to monitor the change data of the stress on the anchor cable; the earth pressure monitoring device is installed on the side of the retaining wall in contact with the slope, and the earth pressure monitoring device is used to monitor the pressure data applied by the slope to the retaining wall; the environmental monitoring device is used to monitor rainfall data, slope groundwater level data, wind speed data, and environmental temperature and humidity data.

10. The slope soil displacement monitoring system according to claim 9, characterized in that, The slope surface and retaining wall crack monitoring device is installed at the widest point of the crack.

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