Monitoring device for landslide mass surface deformation

Abstract

The utility model discloses a monitoring device for landslide mass surface deformation, which is characterized by comprising a measuring pier, an adjusting base is arranged on the measuring pier and connected with the measuring pier, a corner reflector is connected to the top of the adjusting base, and the adjusting base drives the corner reflector to synchronously perform angle adjustment; a target fixing tube is arranged at the top of the corner reflector, the target fixing tube and the corner reflector are connected with each other through a connecting base, a target is fixed on the outer side wall of the target fixing tube, a forced centering base is arranged at the top of the target fixing tube, a prism is arranged above the forced centering base, and a mounting vertical rod at the bottom of the prism is connected with the forced centering base. According to the utility model, the precision of landslide surface deformation monitoring in various weather environments is improved, and meanwhile, various monitoring results are combined for comparison, so that the accuracy of the monitoring results is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering safety monitoring technology, specifically relating to a monitoring device for surface deformation of landslide bodies. Background Technology

[0002] In the field of safety monitoring engineering, especially in the application of landslide surface deformation monitoring, installing prism measuring points and targets on the landslide surface and using measuring robots and machine vision rangefinders to monitor surface deformation has become a common method for landslide surface deformation monitoring in recent years.

[0003] However, while conventional prism measurements offer high accuracy, they are significantly affected by external weather conditions and measurement methods, and have a relatively small effective measurement area. Poor weather conditions and improper measurement methods can negatively impact the monitoring accuracy of landslide surface deformation. Machine vision measuring instruments require a fixed camera and targets at the monitored areas. Video surveillance is used to record data, and changes in target position over a period of time are used as the measurement point deformation. The measurement principle is simple, and installation is convenient. However, this method is highly sensitive to weather conditions, making monitoring results susceptible to weather influences, and the effective measurement area is relatively small.

[0004] Based on the above, the device integrating prism measuring points, visual rangefinder targets, and synthetic aperture radar corner reflection (radar monitoring base points) will be integrated. By utilizing the advantages of continuous and large-area monitoring in radar monitoring technology, the impact of external climate on surface monitoring will be reduced, solving the problem of large-area measurement. Furthermore, it will enable comparative monitoring using multiple methods, further improving the accuracy of landslide surface deformation. Utility Model Content

[0005] The purpose of this invention is to provide a monitoring device for landslide surface deformation, which improves the accuracy of landslide surface deformation monitoring under various weather conditions. At the same time, it combines multiple monitoring results for comparison to ensure the accuracy of the monitoring results.

[0006] The technical solution adopted by this utility model is a monitoring device for surface deformation of landslide body, including a measuring pier, an adjusting base is set on and connected to the measuring pier, a corner reflector is connected to the top of the adjusting base, and the adjusting base drives the corner reflector to adjust the angle synchronously.

[0007] The top of the corner reflector is equipped with a target fixing tube, and the target fixing tube and the corner reflector are connected to each other through a connecting base. A target is fixed to the outer wall of the target fixing tube, and a forced centering base is set at the top of the target fixing tube. A prism is set above the forced centering base, and the mounting rod at the bottom of the prism is connected to the forced centering base.

[0008] The present invention is further characterized in that,

[0009] The adjustment base includes a connecting block connected to the bottom of the corner reflector. A pair of adjustment plates are fixed to the bottom of the connecting block. A support rod is movably connected between the pair of adjustment plates. An arc-shaped sliding groove is opened on the adjustment plate. A limit bolt passes through the sliding groove and the support rod in sequence to the sliding groove on the other side.

[0010] The bottom of the support rod is connected to a first support chassis, and a second support chassis is movably connected below the first support chassis. The rotation of the first support chassis relative to the second support chassis causes the corner reflector to adjust its angle in the horizontal direction.

[0011] A rotating shaft is threaded through the top of the support rod, and the two ends of the rotating shaft are movably connected to the corresponding adjusting plates.

[0012] The first support chassis has several first limiting holes, which are distributed at equal angles along the circumference of the first support chassis. The second support chassis has several second limiting holes, which are distributed at equal angles along the circumference of the second support chassis. A limiting rod is movably connected between the first limiting holes and the second limiting holes.

[0013] The lower end of the first support base has a first circular groove, and the upper end of the second support base has a second circular groove opposite to the first circular groove. Symmetrical pulleys are provided between the first and second circular grooves, and the pulleys are connected to the bottom of the first support base.

[0014] The forced centering base has a nut inside, and the lower end of the mounting rod is threaded near the bottom, so that the mounting rod is threadedly connected to the forced centering base.

[0015] Forced welding and fixing of the bottom of the centering base and the top of the target fixing tube.

[0016] The top of the connecting base is welded to the bottom of the target fixing tube, and the bottom of the connecting base is welded to the top of the corner reflector.

[0017] The beneficial effects of this utility model are:

[0018] (1) The monitoring device for landslide surface deformation of this utility model adopts radar monitoring. An angle reflector is installed on the monitoring device. The radar wave is reflected by the angle reflector to achieve accurate monitoring of landslide surface deformation. At the same time, radar monitoring can achieve long-term continuous monitoring without being affected by factors such as day and night or weather. It can completely record the entire process of landslide deformation, which helps to analyze the development trend and law of landslide deformation.

[0019] Meanwhile, by integrating a prism, target, and corner reflector into the same monitoring device, this invention enables simultaneous use of manual observation, visual monitoring, and radar monitoring. By comparing the results of these three monitoring methods, the accuracy of the monitoring results is effectively enhanced.

[0020] (2) An adjustment base is provided at the bottom of the corner reflector to realize the vertical and horizontal adjustment of the corner reflector, thereby realizing the transmission and reception of monitoring signals in different directions, which increases the application range of the monitoring device; the pulley between the first support base and the second support base can not only play a supporting role, but also assist the corner reflector in adjusting the angle in the horizontal direction, and fix the adjusted angle through the limit rod. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the monitoring device for surface deformation of landslide bodies according to this utility model;

[0022] Figure 2 This is a utility model Figure 1 Enlarged structural diagram at point A;

[0023] Figure 3 This is a schematic diagram of the structure of the adjusting base in the monitoring device for surface deformation of landslide bodies according to this utility model;

[0024] Figure 4 This is a front view of the first and second support chassis in the monitoring device for landslide surface deformation of this utility model.

[0025] In the diagram, 1. Prism, 2. Forced centering base, 3. Mounting rod, 4. Target, 5. Target fixing tube, 6. Connecting block, 7. Connecting base, 8. Support rod, 9. Corner reflector, 10. Adjusting base, 11. Measuring pier, 12. First support base, 13. Second support base, 14. Rotating shaft, 15. Adjusting plate, 16. Slide groove, 17. Limiting bolt, 18. First limiting hole, 19. Second limiting hole, 20. Pulley, 21. Limiting rod, 22. First circular groove, 23. Second circular groove. 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] Example 1

[0028] This utility model relates to a monitoring device for surface deformation of landslide bodies, such as... Figure 1 As shown, it includes a measuring pier 11, an adjusting base 10 is provided and connected to the measuring pier 11, and a corner reflector 9 is connected to the top of the adjusting base 10. The adjusting base 10 drives the corner reflector 9 to adjust the angle synchronously.

[0029] The top of the corner reflector 9 is provided with a target fixing tube 5. The target fixing tube 5 and the corner reflector 9 are connected to each other through a connecting base 7. A target 4 is fixed on the outer wall of the target fixing tube 5. A forced centering base 2 is provided on the top of the target fixing tube 5. A prism 1 is provided above the forced centering base 2. The mounting vertical rod 3 at the bottom of the prism 1 is connected to the forced centering base 2.

[0030] This invention integrates the prism 1, target 4, and corner reflector 9 into a single monitoring device, enabling simultaneous manual observation, visual monitoring, and radar monitoring. This solves the problem in the prior art where monitoring by the prism 1 and target 4 is easily affected by environmental factors such as weather, leading to inaccurate monitoring results.

[0031] Radar monitoring of landslide deformation has many advantages, mainly in the following aspects:

[0032] Real-time monitoring: Radar can monitor landslides in real time, quickly obtain deformation information of landslides, and issue early warnings in a timely manner once abnormal changes occur, thus gaining valuable time for disaster prevention and mitigation work.

[0033] Continuous observation: It can achieve long-term continuous monitoring, without being greatly affected by factors such as day and night or weather, and can completely record the entire process of landslide deformation, which helps to analyze the development trend and law of landslide deformation.

[0034] Precise measurement: Utilizing the propagation and reflection principles of radar signals, it is possible to accurately measure the minute deformations of landslides. The measurement accuracy can reach the millimeter or even sub-millimeter level, providing accurate data support for the quantitative analysis of landslide deformation.

[0035] Wide coverage: Radar monitoring can be achieved through various platforms such as airborne, spaceborne, or ground stations, enabling rapid scanning and monitoring of large landslide areas and obtaining deformation information of the entire landslide and its surrounding areas, thus avoiding the limitations of traditional monitoring methods that can only perform local monitoring.

[0036] Furthermore, this invention also includes an adjustment base 10 at the bottom of the corner reflector 9. By adjusting the angle of the corner reflector 9, the angle between its reflective surface and the incident direction of the radar wave can be optimized, ensuring that the radar wave undergoes multiple efficient reflections within the corner reflector 9, thereby returning a stronger echo signal along the original incident direction. This improves the radar system's reception quality of reflected signals, especially in complex landslide environments with poor signal reflection conditions, effectively enhancing signal discernibility and accuracy.

[0037] Example 2

[0038] This utility model is a monitoring device for surface deformation of landslide bodies, including a measuring pier 11. The measuring pier 11 is made of concrete and can provide a stable base support. An adjusting base 10 is set on and connected to the measuring pier 11. An angle reflector 9 is connected to the top of the adjusting base 10. The adjusting base 10 drives the angle reflector 9 to adjust the angle synchronously.

[0039] The top of the corner reflector 9 is provided with a target fixing tube 5. The target fixing tube 5 and the corner reflector 9 are connected to each other through a connecting base 7. A target 4 is fixed on the outer wall of the target fixing tube 5. A forced centering base 2 is provided on the top of the target fixing tube 5. A prism 1 is provided above the forced centering base 2. The mounting vertical rod 3 at the bottom of the prism 1 is connected to the forced centering base 2.

[0040] Furthermore, such as Figure 2 As shown, the bottom of the centering base 2 and the top of the target fixing tube 5 are welded and fixed. The top of the connecting base 7 is welded and fixed to the bottom of the target fixing tube 5, and the bottom of the connecting base 7 is welded and fixed to the top of the corner reflector 9.

[0041] Example 3

[0042] This utility model relates to a monitoring device for surface deformation of landslides, comprising a prism 1, a forced centering base 2 below the prism 1, a nut inside the forced centering base 2, and a mounting rod 3 fixedly connected to the bottom of the prism 1. The mounting rod 3 has a threaded connection near its bottom end to the forced centering base 2. The forced centering base 2 ensures that the prism 1 is precisely positioned on the vertical line of the measurement point, guaranteeing that the center of the prism 1 coincides with the measurement point, thus eliminating centering errors. This is crucial for high-precision measurements. In fields such as topographic surveying and engineering surveying, even millimeter-level or smaller errors can significantly impact subsequent work. The forced centering base can control centering errors within a very small range, ensuring the accuracy of the measurement results.

[0043] The bottom of the forced centering base 2 is fixedly connected to a target fixing tube 5, and a target 4 is provided on the outer wall of the target fixing tube 5.

[0044] Furthermore, both the target fixing tube 5 and the mounting rod 3 can be telescopic tubes with adjustable length. The bottom of the target fixing tube 5 is fixedly connected to a connecting base 7, which serves to connect the target fixing tube 5 and the corner reflector 9. Therefore, the bottom of the connecting base 7 is fixedly connected to the corner reflector 9.

[0045] To ensure that the monitoring device of this utility model can effectively perform radar monitoring, an adjustment base 10 is provided at the bottom of the corner reflector 9. The adjustment base 10 drives the corner reflector 9 to change its angle in the horizontal or vertical direction. The adjustment base 10 is fixed to the measuring pier 11 formed by concrete pouring by bolts or the like.

[0046] Example 4

[0047] Based on Example 3, the monitoring device in this example drives the corner reflector 9 to change its angle in the horizontal or vertical direction by installing an adjustment base 10 at the bottom of the corner reflector 9.

[0048] like Figure 3 As shown, the adjustment base 10 includes a connecting block 6 connected to the bottom of the corner reflector 9. A pair of adjustment plates 15 are fixed to the bottom of the connecting block 6. A support rod 8 is movably connected between the pair of adjustment plates 15. An arc-shaped sliding groove 16 is opened on the adjustment plate 15. A limiting bolt 17 passes through the sliding groove 16. The limiting bolt 17 passes through the sliding groove 16 on one side and the support rod 8 in sequence to the sliding groove on the other side.

[0049] When the angle of the corner reflector 9 needs to be adjusted vertically, the limiting bolt 17 is loosened. At this time, the corner reflector 9 can rotate vertically with the connection point between the support rod 8 and the adjusting plate 15 as the center, thereby completing the vertical angle adjustment of the corner reflector 9. When the corner reflector 9 is adjusted to the appropriate position, a nut is attached to one end of the limiting bolt 17 and tightened to fix the angle of the corner reflector 9.

[0050] Furthermore, the limiting bolt 17 is not only a component for fixing the angle of the corner reflector 9, but also, since both ends of the limiting bolt 17 are in the grooves 16 opened on the two side adjustment plates 15, when the angle of the corner reflector 9 is adjusted, the angle can only be adjusted along the opening direction of the grooves 16. This limits the angle adjustment range on the one hand, and facilitates the adjustment operation of the operator on the other hand.

[0051] The bottom of the support rod 8 is connected to the first support base 12, and the second support base 13 is movably connected below the first support base 12. The first support base 12 rotates relative to the second support base 13, which drives the corner reflector 9 to adjust the angle in the horizontal direction.

[0052] Example 5

[0053] Based on embodiment 4, a plurality of first limiting holes 18 are opened on the first support base 12, and the plurality of first limiting holes 18 are distributed at equal angles along the circumference of the first support base 12. A plurality of second limiting holes 19 are opened on the second support base 13, and the plurality of second limiting holes 19 are distributed at equal angles along the circumference of the second support base 13. A limiting rod 21 is movably connected between the first limiting holes 18 and the second limiting holes 19.

[0054] Furthermore, such as Figure 4 As shown, the lower end of the first support base 12 has a first circular groove 22, and the upper end of the second support base 13 has a second circular groove 23 opposite to the first circular groove 22. Symmetrical pulleys 20 are provided between the first circular groove 22 and the second circular groove 23, and the pulleys 20 are connected to the bottom of the first support base 12.

[0055] When it is necessary to adjust the angle of the diagonal reflector 9 or the prism 1 and target 4 in the horizontal direction, first pull out the limiting rod 21 from the first limiting hole 18 and the second limiting hole 19, then rotate the first support base 12. Under the action of the pulley 20, the first support base 12 rotates relative to the second support base 13. When it is rotated to the appropriate position, the limiting rod 21 is then inserted into the corresponding first limiting hole 18 and second limiting hole 19.

[0056] Example 6

[0057] This embodiment provides a monitoring device for surface deformation of landslide bodies. The monitoring device includes a measuring pier 11, an adjusting base 10 is provided and connected to the measuring pier 11, and a corner reflector 9 is connected to the top of the adjusting base 10. The adjusting base 10 drives the corner reflector 9 to adjust the angle synchronously.

[0058] Furthermore, the corner reflector surface is coated with a high-reflectivity optical coating, which has a reflectivity of over 95% within a specific wavelength range. This effectively enhances the intensity of the reflected signal, enabling the monitoring equipment to receive the reflected signal more clearly and accurately during long-distance monitoring, thereby improving the reliability and stability of the monitoring.

[0059] The top of the corner reflector 9 is equipped with a target fixing tube 5, and the target fixing tube 5 and the corner reflector 9 are connected to each other through a connecting base 7. A target 4 is fixed on the outer wall of the target fixing tube 5. The target 4 is made of fluorescent material and can automatically emit fluorescence of a specific wavelength at night or under low light conditions, which is convenient for the monitoring equipment to identify and locate, ensuring continuous monitoring of landslide surface deformation under different lighting conditions, and broadening the applicability of the device.

[0060] A forced centering base 2 is provided at the top of the target fixing tube 5, and a prism 1 is provided above the forced centering base 2. The mounting vertical rod 3 at the bottom of the prism 1 is connected to the forced centering base 2.

[0061] Furthermore, the surface of the target fixing tube 5 is treated with anti-rust treatment to extend its service life and reduce maintenance costs in harsh outdoor environments.

[0062] Furthermore, the adjustment base 10 includes a connecting block 6 connected to the bottom of the corner reflector 9. A pair of adjustment plates 15 are fixed to the bottom of the connecting block 6. A support rod 8 is movably connected between the pair of adjustment plates 15. Specifically, a rotating shaft 14 passes through the top of the support rod 8, and the two ends of the rotating shaft 14 are movably connected to the corresponding adjustment plates 15.

[0063] The adjusting plate 15 has an arc-shaped sliding groove 16, and a limiting bolt 17 passes through the sliding groove 16. The limiting bolt 17 passes through the sliding groove 16 on one side and the support rod 8 in sequence to the sliding groove on the other side.

[0064] The first support base 12 has several first limiting holes 18, which are distributed at equal angles along the circumference of the first support base 12. The second support base 13 has several second limiting holes 19, which are distributed at equal angles along the circumference of the second support base 13. A limiting rod 21 is movably connected between the first limiting holes 18 and the second limiting holes 19.

[0065] Furthermore, the lower end of the first support base 12 has a first circular groove 22, and the upper end of the second support base 13 has a second circular groove 23 opposite to the first circular groove 22. Symmetrical pulleys 20 are provided between the first circular groove 22 and the second circular groove 23, and the pulleys 20 are connected to the bottom of the first support base 12.

[0066] Specifically, the pulley 20 is a mature existing technology, which includes a connecting frame, a rotating shaft, etc. The connection between the pulley 20 and the first support chassis 12 means that the pulley 20 is fixedly connected to the first support chassis 12 through bolts or screws, etc. The pulley 20 plays the role of supporting and assisting rotation.

[0067] When using this invention, the monitoring device is placed in a suitable position, and then the positions of the prism 1 and the target 4 are adjusted. Finally, the angle of the corner reflector 9 is adjusted. After debugging, the staff monitors the deformation of the landslide body in three ways. The results of the three monitoring methods are compared to determine the accuracy of the monitoring results. At the same time, in bad weather, radar monitoring is used to ensure real-time monitoring of the landslide body.

[0068] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0069] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0070] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A monitoring device for surface deformation of a landslide, characterized by, It includes a measuring pier (11), the adjusting base (10) is arranged and connected on the measuring pier (11), the top of the adjusting base (10) is connected with the corner reflector (9), the adjusting base (10) drives the corner reflector (9) to carry out angle adjustment synchronously; The top of the corner reflector (9) is provided with a target fixing tube (5), the target fixing tube (5) and the corner reflector (9) are connected with each other through the connecting base (7), the outer side wall of the target fixing tube (5) is fixed with the target (4), the top of the target fixing tube (5) is provided with a forced centering base (2), the forced centering base (2) is provided with a prism (1) above, and the mounting vertical rod (3) at the bottom of the prism (1) is connected with the forced centering base (2).

2. The device for monitoring surface deformation of landslides according to claim 1, characterized in that, The adjusting base (10) includes a connecting block (6) connected with the bottom of the corner reflector (9), a pair of adjusting plates (15) are fixed on the bottom of the connecting block (6), a supporting rod (8) is movably connected between the pair of adjusting plates (15), arc-shaped sliding grooves (16) are formed in the adjusting plates (15), and limit bolts (17) are penetrated into the sliding grooves (16), the limit bolts (17) are sequentially penetrated through the sliding grooves (16) on one side, the supporting rod (8) and the sliding grooves on the other side. The bottom of the supporting rod (8) is connected with a first supporting base (12), the second supporting base (13) is movably connected below the first supporting base (12), and the first supporting base (12) is rotatable relative to the second supporting base (13) to drive the corner reflector (9) to carry out angle adjustment in the horizontal direction.

3. The device for monitoring surface deformation of landslides according to claim 2, characterized in that, The top of the supporting rod (8) is penetrated with a rotating shaft (14), and the two ends of the rotating shaft (14) are movably connected with the corresponding adjusting plates (15).

4. The device for monitoring surface deformation of landslides according to claim 2, characterized in that, A plurality of first limit holes (18) are formed in the first supporting base (12) and are distributed at equal angles along the circumference of the first supporting base (12), a plurality of second limit holes (19) are formed in the second supporting base (13) and are distributed at equal angles along the circumference of the second supporting base (13), and the first limit holes (18) and the second limit holes (19) are movably connected with a limit rod (21).

5. The device for monitoring surface deformation of landslides according to claim 2, characterized in that, The lower end of the first supporting base (12) is provided with a first circular groove (22), the upper end of the second supporting base (13) is provided with a second circular groove (23) opposite to the first circular groove (22), symmetrical pulleys (20) are arranged between the first circular groove (22) and the second circular groove (23), and the pulleys (20) are connected with the bottom of the first supporting base (12).

6. The device for monitoring surface deformation of landslides according to claim 1, characterized in that, A nut is arranged in the forced centering base (2), the lower end of the mounting vertical rod (3) is provided with a thread near the bottom, and the mounting vertical rod (3) is threadedly connected with the forced centering base (2).

7. The device for monitoring surface deformation of landslides according to claim 1, characterized in that, The bottom of the forced centering base (2) and the top of the target fixing tube (5) are welded and fixed.

8. The device for monitoring surface deformation of landslides according to claim 1, characterized in that, The top of the connecting base (7) and the bottom of the target fixing tube (5) are welded and fixed, and the bottom of the connecting base (7) and the top of the corner reflector (9) are welded and fixed.

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