Device and method for monitoring stability state of pebble clay layer slope

Abstract

The present invention discloses a monitoring device and method for the stability state of a pebble clay layer slope, which relates to the technical field of slope state monitoring of pebble clay layers. The device includes a support vertical rod, a plurality of baffles, a rectangular guiding sleeve, and a plurality of pressure sensors. The bottom end of the baffle is fixed with a sliding plate inclined downward inside the cavity, and the upper end of the side wall of the baffle is horizontally fixed with a pushing block extending into the cavity. The rectangular guiding sleeve slidably penetrates through the upper end surface of the support vertical rod and then extends into the cavity. A plurality of counterweight blocks are arranged on the outer wall of the rectangular guiding sleeve, and a downward pressing inclined surface inclined downward toward the side close to the rectangular guiding sleeve and capable of pressing down the pushing block is arranged on the side wall of each counterweight block. Each pressure sensor is fixed on the downward pressing inclined surface of the corresponding counterweight block. The present invention can arbitrarily arrange and encrypt measurement points according to the actual landform of the pebble clay layer slope, solving the problems of high difficulty in discovery by traditional manual inspections and inability to timely and accurately give early warnings and discover landslides.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring the state of pebble clay layer slopes, and specifically to a device and method for monitoring the stability state of pebble clay layer slopes. Background Technique

[0002] The problem of slope stability is the most common geological problem in highway engineering. The instability and landslide of slopes are characterized by strong suddenness and great harm. For expressways in the operation stage, sudden slope landslides are likely to damage passing vehicles and pose a huge threat to the lives and property safety of the people. The earliest monitoring and measurement technology for slopes and structures has low requirements for equipment and small one-time investment, and can arbitrarily arrange and encrypt measurement points according to the actual topography of the slope. However, for the case of high-density measurement points, although the monitoring efficiency is significantly improved, it still requires monitoring personnel to go to the site for observation, which leads to high difficulty in manual inspection and discovery, resulting in low monitoring efficiency and inability to timely and accurately warn and detect safety accidents of landslides. Therefore, a device and method for monitoring the stability state of pebble clay layer slopes are designed here to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a device and method for monitoring the stability state of pebble clay layer slopes to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A device for monitoring the stability state of pebble clay layer slopes includes a support vertical rod, a plurality of baffles, a rectangular guide sleeve, and a plurality of pressure sensors. The bottom end of the support vertical rod is a threaded drill bit with a conical structure, and different numbers of support members are added according to the actual topography of the pebble clay layer slope to arbitrarily arrange and encrypt measurement points.

[0005] An axially distributed cavity is provided inside the support vertical rod, and a plurality of adjustment holes are opened on the outer wall of the support vertical rod along the axial direction of the support vertical rod. A slide plate inclined downward toward the inside of the cavity is fixed at the bottom end of the baffle. A T-shaped slider is fixed at the bottom end inside the adjustment hole, and a T-shaped card slot for sliding and engaging with the T-shaped slider is opened at the bottom end of the slide plate. After the support vertical rod is inserted into a pre-opened groove on the surface of the slope, all the baffles are slid out of the adjustment holes along the radial direction of the support vertical rod, that is, the T-shaped card slots of the slide plates corresponding to each baffle slide along the outer wall of the T-shaped slider until they cannot slide anymore, and the outer walls of the baffles can be in real-time contact with the radial side walls inside the pre-opened groove.

[0006] A push block extending into the cavity is horizontally fixed at the upper end of the side wall of the baffle. The rectangular guide sleeve slides through the upper end face of the support vertical rod and then extends into the cavity. A number of counterweight blocks are provided on the outer wall of the rectangular guide sleeve, and a downward pressing inclined surface that inclines downward to the lower side close to the rectangular guide sleeve and can press down the push block is provided on the side wall of each counterweight block. Sliding the rectangular guide sleeve downward along the cavity of the support vertical rod can drive all the counterweight blocks to slide synchronously, that is, each counterweight block slides down and presses on the end of the corresponding push block. As the rectangular guide sleeve continuously slides downward, the push block is driven by the downward pressure of the downward pressing inclined surface of the counterweight block to drive the baffle to slide away from the cavity side of the support vertical rod until it cannot slide, ensuring that all the baffles can fit on the inner wall of the pre-grooved slot, and is used to detect whether the soil layer on the inner wall of the pre-grooved slot has displacement.

[0007] Each pressure sensor is fixed on the downward pressing inclined surface of the corresponding counterweight block. The signal output ports of a number of pressure sensors are connected to the signal input port of the GNSS monitoring system through wireless signals. After the pressure sensor senses the thrust from the push block, on the one hand, it will slide the counterweight block and the rectangular guide sleeve upward along the axial direction of the cavity. On the other hand, the pressure signal sensed by the pressure sensor is transmitted to the monitoring center of the GNSS monitoring system through wireless signals, and combined with the monitoring data and the starting coordinates, it is quasi-real-time solved and processed by the control center software, and finally the three-dimensional coordinates of the monitoring point are obtained, and the staff can timely know the stability status of the pebble clay layer of the slope.

[0008] In a further embodiment, a number of adjustment holes are respectively located on both sides of the support vertical rod, and the adjustment holes on both sides are staggeredly distributed.

[0009] In a further embodiment, the sum of the heights of the baffle and the sliding plate is equal to the internal height of the adjustment hole, and the baffle, the sliding plate and the adjustment hole have the same width.

[0010] In a further embodiment, a matching inclined surface parallel to the downward pressing inclined surface of the counterweight block is provided at the end of the push block where there is a vacancy.

[0011] In a further embodiment, a guide rod is slidably inserted into the rectangular guide sleeve. The bottom end of the guide rod penetrates through the rectangular guide sleeve and is connected to a rubber airbag. The rubber airbag is located at the inner bottom end of the cavity. A temperature and humidity sensor is provided at the inner bottom end of the rubber airbag, and the sensing head of the temperature and humidity sensor penetrates through the side wall of the bottom end of the rubber airbag. The signal port of the temperature and humidity sensor is connected to the signal input port of the GNSS monitoring system through a wireless signal. An immersion hole is formed at the outer bottom end of the support vertical rod, and a filter screen is provided in the immersion hole. The sensing head of the temperature and humidity sensor can sense the groundwater immersed into the cavity, and transmit the sensing signal to the monitoring center of the GNSS monitoring system through a wireless signal remotely. By combining the monitoring data with the starting coordinates and performing quasi-real-time calculation and processing through the control center software, the three-dimensional coordinates of the monitoring point can be finally obtained. The staff can judge the stability of the pebble clay layer of the slope through the obtained temperature and humidity data.

[0012] In a further embodiment, the top end of the guide rod penetrates through the top end of the rectangular guide sleeve and is connected to an installation top seat. An installation groove is formed at the bottom end of the installation top seat. The inner top surface of the installation groove is fixedly connected to the bottom end surface of the guide rod. A displacement sensor is fixed on the inner top surface of the installation groove. The signal port of the displacement sensor is connected to the signal input port of the GNSS monitoring system through a wireless signal. Once the phenomenon of groundwater influx occurs, the buoyancy of the rubber airbag floats the temperature and humidity sensor, and the guide rod slides upward synchronously, and the displacement sensor rises synchronously to facilitate sensing the displacement signal. Subsequently, the data is transmitted to the monitoring center of the GNSS monitoring system through a wireless signal. By combining the monitoring data with the starting coordinates and performing quasi-real-time calculation and processing through the control center software, the three-dimensional coordinates of the monitoring point can be finally obtained. The staff can judge the groundwater level condition through the obtained displacement value.

[0013] In a further embodiment, the counterweight is connected to the outer wall of the rectangular guide sleeve through a connecting piece. The connecting piece includes a plurality of oval steel rings. The plurality of oval steel rings are equally divided into two groups, and the two groups of oval steel rings are distributed in parallel. Adjacent oval steel rings in the same group are fixedly connected through a connecting block. One end between the two groups of oval steel rings is fixedly connected with a guide slider, and the other end of the two groups of oval steel rings is fixedly connected to the outer wall of the rectangular guide sleeve. A T-shaped buffer groove for sliding and clamping with the guide slider is formed on the side wall of the counterweight. When the end of the push block abuts against the downward inclined surface of the counterweight reversely, that is, the T-shaped buffer groove of the counterweight slides along the outer wall of the guide slider connected by the two groups of oval steel rings to compensate for the impact force generated on the pressure sensor when the push block is pushed reversely.

[0014] In a further embodiment, a T-shaped insertion rod is fixed on the side wall of one group of oval steel rings, and a socket sleeve is fixed on the side wall of the other group of oval steel rings. The T-shaped insertion rod is slidably inserted into the socket sleeve.

[0015] In a further embodiment, a support mechanism is provided outside the support vertical rod.

[0016] The support mechanism includes two semicircular clamping seats. One side wall of one end of the clamping seat is fixedly provided with a plug connector, and the other end of the clamping seat is provided with a plug slot. The plug connector of one clamping seat is inserted into the plug slot of the other clamping seat. Inverted L-shaped steel pins are rotatably provided on the side walls of the two clamping seats away from each other. Place the two clamping seats on both sides of the outer wall of the support vertical rod, insert the plug connector of one clamping seat into the plug slot of the other clamping seat, and at the same time, insert the plug connector of the other clamping seat into the plug slot of the corresponding clamping seat. The two clamping seats are assembled and rotatably clamped on the outer wall of the support vertical rod. Then, the inverted L-shaped steel pins of the two clamping seats are embedded into the surface of the monitored ground through tools to serve as support components to straighten the support vertical rod.

[0017] Preferably, based on the above monitoring method of a monitoring device for the stability state of a pebble clay layer slope, the following steps are included:

[0018] A1. Arbitrarily arrange encrypted measurement points according to the actual landform of the pebble clay layer slope, that is, add different numbers of support members. Grooves are opened on the surface of each measurement point, and then the support vertical rods are inserted into the grooves.

[0019] A2. After the support vertical rods are inserted into the pre-opened grooves on the surface of the slope, slide all the baffles out of the adjustment holes along the radial direction of the support vertical rods, that is, use the T-shaped card slots of the sliding plates corresponding to each baffle to slide along the outer wall of the T-shaped slider until it cannot slide. The outer wall of the baffle can be in real-time contact with the radial side wall inside the pre-opened groove.

[0020] A3. Once the soil layer at the corresponding position of a baffle undergoes displacement, it will laterally push the baffle to synchronously displace. In this way, the end of the push block will reversely press against the downward inclined surface of the counterweight pressing block. After the pressure sensor senses the thrust from the push block, on the one hand, it will slide the counterweight pressing block and the rectangular guide sleeve upward along the axial direction of the cavity. On the other hand, the pressure signal sensed by the pressure sensor is transmitted to the monitoring center of the GNSS monitoring system through wireless signals, and combined with the monitoring data and the starting coordinates, it is quasi-real-time solved and processed by the control center software. Finally, the three-dimensional coordinates of the measurement point are obtained, and the staff can timely know the stability status of the pebble clay layer of the slope.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The present invention relates to a monitoring device and method for the stability state of a pebble clay layer slope, which can arbitrarily arrange and encrypt measurement points according to the actual landform of the pebble clay layer slope. Each measurement point is embedded into the slope surface to a specific depth through a support vertical rod, so as to facilitate the real-time monitoring of the displacement of the pebble clay layer at different depths below the slope surface, and upload it to the monitoring and control platform in real time, so that the background staff can grasp the real-time situation of the pebble clay layer slope in real time. There is no need for monitoring personnel to go to the site for observation, which solves the problems of high difficulty in discovery by traditional manual inspections, resulting in low monitoring efficiency and inability to timely and accurately warn and discover safety accidents such as landslides. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 It is a cross-sectional view of the structure of the support vertical rod of the present invention;

[0025] Figure 3 For the present invention Figure 2 The enlarged view of the structure at A in

[0026] Figure 4 It is a schematic diagram of the baffle structure of the present invention;

[0027] Figure 5 It is a cross-sectional view of the structure of the rectangular guide sleeve, guide rod, rubber airbag, installation top seat and several counterweight blocks of the present invention;

[0028] Figure 6 For the present invention Figure 5 The enlarged view of the structure at B in

[0029] Figure 7 It is a schematic diagram of the structure of Embodiment III of the present invention

[0030] Figure 8 It is a cross-sectional view of the top view of the card seat with two semi-circular structures of the present invention.

[0031] In the figure: 1. Installation top seat; 2. Rectangular guide sleeve; 3. Support vertical rod; 4. Baffle; 5. Filter screen; 6. Photovoltaic panel; 7. Push block; 8. Slide plate; 9. T-shaped card slot; 10. T-shaped slider; 11. Displacement sensor; 12. Guide rod; 13. Counterweight block; 14. Pressure sensor; 15. Rubber airbag; 16. Temperature and humidity sensor; 17. Guide slider; 18. Oval steel ring; 19. Insertion sleeve; 20. T-shaped insertion rod; 21. Card seat; 22. Inverted L-shaped steel drill; 23. Insertion joint; 24. Insertion slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1

[0034] Please refer to Figure 1 , this embodiment provides a monitoring device and method for the stability state of a pebble clay layer slope, including a support vertical rod 3, a plurality of baffles 4, a rectangular guide sleeve 2, and a plurality of pressure sensors 14. The support vertical rod 3 serves as a support member of the monitoring device. According to the actual topography of the pebble clay layer slope, encryption measurement points are arranged arbitrarily, that is, different numbers of support members are added. Slots are opened on the ground surface of each measurement point, and then the support vertical rod 3 is inserted into the slot. According to the measurement depth, the specific depth of the slot is preset to meet the monitoring requirements.

[0035] Please refer to Figure 1-3 , an axially distributed cavity is provided inside the support vertical rod 3. A plurality of adjustment holes are opened on the outer wall of the support vertical rod 3 along the axial direction of the support vertical rod 3. The bottom end of the baffle 4 is fixed with a sliding plate 8 that inclines downward into the cavity. The bottom end inside the adjustment hole is fixed with a T-shaped slider 10. A T-shaped card slot 9 for sliding and engaging with the T-shaped slider 10 is opened at the bottom end of the sliding plate 8. The sliding plate 8 can adjust the position of the baffle 4 by sliding relative to the T-shaped slider 10 using the T-shaped card slot 9.

[0036] It should be noted that during the process of vertically inserting the support vertical rod 3 into the pre-opened slot, please refer to Figure 2 , the sliding plate 8 is inclined. The sliding plate 8 and the baffle 4 have a tendency to slide along the T-shaped slider 10 towards the side close to the inside of the cavity in real time, rather than sliding away from the cavity to adjust the position. This ensures that the baffle 4 and the sliding plate 8 will not become obstacles during the process of inserting the support vertical rod 3 into the pre-opened slot.

[0037] After the support vertical rod 3 is inserted into the slot pre-opened on the slope surface, all the baffles 4 are slid out of the adjustment holes along the radial direction of the support vertical rod 3, that is, the T-shaped card slot 9 of the sliding plate 8 corresponding to each baffle 4 slides along the outer wall of the T-shaped slider 10 until it cannot slide anymore. The outer wall of the baffle 4 can be in real-time contact with the radial side wall inside the pre-opened slot.

[0038] Please refer to Figure 1-5, a push block 7 extending into the cavity is horizontally fixed at the upper end of the side wall of the baffle 4. The rectangular guide sleeve 2 slidably penetrates through the upper end surface of the support vertical rod 3 and then extends into the cavity. A number of counterweight blocks 13 are provided on the outer wall of the rectangular guide sleeve 2, and a downward pressing inclined surface that inclines downward to the lower side close to the rectangular guide sleeve 2 and can press down the push block 7 is provided on the side wall of each counterweight block 13. Sliding the rectangular guide sleeve 2 downward along the cavity of the support vertical rod 3 can drive all the counterweight blocks 13 to slide synchronously, that is, each counterweight block 13 slides down and presses on the end of the corresponding push block 7. As the rectangular guide sleeve 2 continuously slides down, the push block 7 is driven by the downward pressure of the downward pressing inclined surface of the counterweight block 13 to drive the baffle 4 to slide away from the cavity side of the support vertical rod 3 until it cannot slide anymore, ensuring that all the baffles 4 can fit on the inner wall of the pre-grooved slot, and is used to detect whether the soil layer on the inner wall of the pre-grooved slot has displacement.

[0039] Once the soil layer at the corresponding position of a baffle 4 has displacement, it will laterally push the baffle 4 to displace synchronously. In this way, it will reversely abut against the downward pressing inclined surface of the counterweight block 13 through the end of the push block 7. Please refer to Figure 5 , each pressure sensor 14 is fixed on the downward pressing inclined surface of the corresponding counterweight block 13. The signal output ports of a number of pressure sensors 14 are connected to the signal input port of the GNSS monitoring system through wireless signals. After the pressure sensor 14 senses the thrust from the push block 7, on the one hand, it will slide the counterweight block 13 and the rectangular guide sleeve 2 upward along the axial direction of the cavity. On the other hand, the pressure signal sensed by the pressure sensor 14 is transmitted to the monitoring center of the GNSS monitoring system through wireless signals, and combined with the monitoring data and the starting coordinates, it is quasi-real-time solved and processed through the control center software, and finally the three-dimensional coordinates of the monitoring point are obtained, and the staff can timely know the stability status of the pebble clay layer of the slope.

[0040] In addition, a photovoltaic panel 6 is provided on the top end of the side wall of the support vertical rod 3 through an L-shaped bracket to provide power for the pressure sensor 14.

[0041] By setting monitoring devices at different monitoring points, it is convenient for the backstage staff to grasp in real time whether the soil layer of the pebble clay layer slope has displacement. There is no need for monitoring personnel to go to the site for observation, which solves the problems of high difficulty in discovery by traditional manual inspections, resulting in low monitoring efficiency, and inability to timely and accurately warn and discover safety accidents of landslides.

[0042] Please refer to Figure 6 , the counterweight block 13 is connected to the outer wall of the rectangular guide sleeve 2 through a connecting piece. When the end of the push block 7 reversely abuts against the downward pressing inclined surface of the counterweight block 13, the pressure sensor 14 will sense the pressure signal. In order to reduce the impact force on the pressure sensor 14 when the end of the push block 7 reversely pushes, relative sliding occurs between the counterweight block 13 and the connecting piece to buffer the impact force.

[0043] The connecting piece includes several oval steel rings 18. The several oval steel rings 18 are equally divided into two groups, and the two groups of oval steel rings 18 are distributed in parallel. Adjacent oval steel rings 18 in the same group are fixedly connected by connecting blocks. A guiding slider 17 is fixedly connected between one ends of the two groups of oval steel rings 18, and the other ends of the two groups of oval steel rings 18 are fixedly connected to the outer wall of the rectangular guiding sleeve 2. A T-shaped buffer groove for sliding and clamping with the guiding slider 17 is formed in the side wall of the counterweight pressing block 13. When the end of the pushing block 7 abuts against the downward inclined surface of the counterweight pressing block 13 in the reverse direction, that is, the T-shaped buffer groove of the counterweight pressing block 13 slides along the outer wall of the guiding slider 17 connected by the two groups of oval steel rings 18 to compensate for the impact force generated on the pressure sensor 14 when the pushing block 7 is pushed in the reverse direction.

[0044] In addition, two groups of oval steel rings 18 are used as the supporting components for supporting the guiding slider 17. On the one hand, it can stably support the guiding slider 17. On the other hand, when the relative sliding between the guiding slider 17 and the T-shaped buffer groove is no longer possible, relative sliding can be generated by each oval steel ring 18 itself to shorten the length of the entire connecting piece and further expand the buffer range.

[0045] Please refer to Figure 1 and 5 As shown in, an immersion hole is formed in the bottom end of the outer wall of the supporting vertical rod 3, and a filter screen 5 is arranged in the immersion hole. Once groundwater appears, the groundwater enters the immersion hole through the filter screen 5 and then enters the cavity. A guiding rod 12 is slidably inserted into the rectangular guiding sleeve 2. The bottom end of the guiding rod 12 penetrates through the rectangular guiding sleeve 2 and is connected with a rubber airbag 15. The rubber airbag 15 is located at the inner bottom end position of the cavity. A temperature and humidity sensor 16 is arranged at the inner bottom end of the rubber airbag 15, and the sensing head of the temperature and humidity sensor 16 penetrates through the side wall at the bottom end of the rubber airbag 15. The signal port of the temperature and humidity sensor 16 is connected to the signal input port of the GNSS monitoring system through a wireless signal. The photovoltaic panel 6 provides power for the temperature and humidity sensor 16. The sensing head of the temperature and humidity sensor 16 can sense the groundwater immersed in the cavity and remotely transmit the sensing signal to the monitoring center through the wireless signal. By combining the monitoring data with the starting coordinates and performing quasi-real-time solution processing through the control center software, the three-dimensional coordinates of the monitoring point are finally obtained, and the staff can judge the stability status of the pebble clay layer of the slope by the known temperature and humidity data.

[0046] Please refer to Figure 5, the top end of the guide rod 12 penetrates through the top end of the rectangular guide sleeve 2 and is connected with an installation top seat 1. An installation groove is opened at the bottom end of the installation top seat 1. The inner top end surface of the installation groove is fixedly connected with the bottom end surface of the guide rod 12. A displacement sensor 11 is fixed on the inner top end surface of the installation groove. The signal port of the displacement sensor 11 is connected with the signal input port of the GNSS monitoring system through a wireless signal. The photovoltaic panel 6 provides power for the displacement sensor 11. Once groundwater surges in, the buoyancy of the rubber airbag 15 floats the temperature and humidity sensor 16, the guide rod 12 slides upward synchronously, and the displacement sensor 11 rises synchronously to facilitate sensing displacement signals. Subsequently, the wireless signal transmits the data to the monitoring center of the GNSS monitoring system, and through the control center software, the monitoring data and the starting coordinates are quasi-real-time solved and processed. Finally, the three-dimensional coordinates of the monitoring point are obtained, and the staff can judge the underground water level condition by the obtained displacement value.

[0047] Embodiment 2

[0048] On the basis of Embodiment 1, further improvements are made:

[0049] Please refer to Figure 2 and Figure 5 , several adjusting holes are respectively located on both sides of the support vertical rod 3, and the adjusting holes on both sides are staggeredly distributed. The purpose of this setting is to meet the requirement of arranging the baffle 4 at different depths, that is, arranging the corresponding pressure sensor 14, so as to facilitate real-time monitoring of the displacement of the pebble clay layer at different depths below the surface of the same monitoring area of the slope.

[0050] The sum of the heights of the baffle 4 and the sliding plate 8 is equal to the inner height of the adjusting hole, and the widths of the baffle 4, the sliding plate 8 and the adjusting hole are the same. This ensures that when the baffle 4 is located inside the adjusting hole, it can completely block the adjusting hole, avoiding soil entering the cavity of the support vertical rod 3 through the gap during the process of inserting the support vertical rod 3 into the pre-opened hole.

[0051] Please refer to Figure 2 , a matching inclined surface parallel to the pressing inclined surface of the counterweight pressing block 13 is provided at one end of the push block 7 where there is a vacancy. By setting the matching inclined surface, it can be ensured that the pressing inclined surface of the counterweight pressing block 13 fits with the matching inclined surface during the downward pressing process. As long as the counterweight pressing block 13 presses downward, relative sliding can occur between the pressing inclined surface and the matching inclined surface, which can not only ensure the lateral sliding of the push block 7 but also reduce the resistance when the counterweight pressing block 13 presses downward.

[0052] Please refer to Figure 6, where a T-shaped insertion rod 20 is fixed to the side wall of one group of oval steel rings 18, and an insertion sleeve 19 is fixed to the side wall of the other group of oval steel rings 18. The T-shaped insertion rod 20 is slidably inserted into the insertion sleeve 19. When the oval steel ring 18 deforms itself, relative sliding occurs between the insertion sleeve 19 and the T-shaped insertion rod 20, which can not only compensate for the displacement difference during the deformation of the oval steel ring 18, but also enhance the strength of the entire connector.

[0053] Embodiment 3

[0054] On the basis of Embodiment 2, further improvements are made:

[0055] Please refer to Figure 1 and Figure 7 , a threaded drill bit with a conical structure is provided at the bottom end of the support vertical rod 3. Rotate the support vertical rod 3, and use the threaded drill bit to drill holes on the surface of the monitoring ground. According to the monitoring depth requirement, the embedding depth of the support vertical rod 3 can be adjusted by rotating it by itself, without the need to pre-open holes on the surface.

[0056] Please refer to Figure 7 , a support mechanism is provided outside the support vertical rod 3. During the process of the support vertical rod 3 opening holes with the threaded drill bit, in order to efficiently and directly face the rotation of the threaded drill bit, the support mechanism is used to stably straighten the support vertical rod 3, ensuring that the support vertical rod 3 does not shake significantly during the rotation process, and improving the efficiency of the support vertical rod 3 being embedded below the surface of the slope.

[0057] Please refer to Figure 7-8 , the support mechanism includes two semi-circular structure clamping seats 21. One end side wall of the clamping seat 21 is fixedly provided with an insertion head 23, and the other end of the clamping seat 21 is provided with an insertion slot 24. The insertion head 23 of one clamping seat 21 is inserted into the insertion slot 24 of the other clamping seat 21. Inverted L-shaped steel pins 22 are rotatably provided on the side walls of the two clamping seats 21 away from each other. Place the two clamping seats 21 on both sides of the outer wall of the support vertical rod 3, and insert the insertion head 23 of one clamping seat 21 into the insertion slot 24 of the other clamping seat 21. At the same time, the insertion head 23 of the other clamping seat 21 is inserted into the corresponding insertion slot 24 of the clamping seat 21. The two clamping seats 21 are assembled and rotatably clamped on the outer wall of the support vertical rod 3. Then, the inverted L-shaped steel pins 22 of the two clamping seats 21 are embedded into the surface of the monitoring ground through tools to straighten the support vertical rod 3 as a support component.

[0058] In addition, if the surface of the monitoring point is in an inclined state, then through the relative rotation between the clamping seat 21 and the inverted L-shaped steel pin 22, the clamping seat 21 is in a relatively horizontal state, so as to provide a stable support frame for the support vertical rod 3 to insert into the surface.

[0059] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A monitoring device for the stability state of a pebble clay layer slope, comprising a support vertical rod (3), a plurality of baffles (4), a rectangular guide sleeve (2), and a plurality of pressure sensors (14). The bottom end of the support vertical rod (3) is a threaded drill bit with a conical structure. The signal output ports of the plurality of pressure sensors (14) are connected to the signal input port of the GNSS monitoring system through wireless signals. It is characterized in that: The interior of the support vertical rod (3) is provided with an axially distributed cavity. The outer wall of the support vertical rod (3) is provided with a plurality of adjustment holes distributed along the axial direction of the support vertical rod (3). The bottom end of the baffle (4) is fixed with a sliding plate (8) inclined downward inside the cavity. The inner bottom end of the adjustment hole is fixed with a T-shaped slider (10). The bottom end of the sliding plate (8) is provided with a T-shaped card slot (9) that slidably engages with the T-shaped slider (10). The upper end of the side wall of the baffle (4) is horizontally fixed with a pushing block (7) extending into the cavity. The rectangular guiding sleeve (2) slidably penetrates through the upper end surface of the support vertical rod (3) and then extends into the cavity. The outer wall of the rectangular guiding sleeve (2) is provided with a plurality of counterweight pressing blocks (13). And each side wall of the counterweight pressing block (13) is provided with a downward pressing inclined surface that inclines downward toward the side close to the rectangular guiding sleeve (2) and can press down the pushing block (7). Each pressure sensor (14) is fixed on the downward pressing inclined surface of the corresponding counterweight pressing block (13).

2. The monitoring device for the stability state of a pebble clay layer slope according to claim 1, wherein: The plurality of adjustment holes are respectively located on both sides of the support vertical rod (3), and the adjustment holes on both sides are staggeredly distributed.

3. The monitoring device for the stability state of a pebble clay layer slope according to claim 1, wherein: The sum of the heights of the baffle (4) and the sliding plate (8) is equal to the internal height of the adjustment hole. The baffle (4), the sliding plate (8), and the adjustment hole have the same width.

4. The monitoring device for the stability state of a pebble clay layer slope according to claim 1, characterized in that: The end of the pushing block (7) located at the vacant end is provided with a matching inclined surface parallel to the downward pressing inclined surface of the counterweight pressing block (13).

5. The monitoring device for the stability state of a pebble clay layer slope according to claim 1, characterized in that: The rectangular guiding sleeve (2) is slidably inserted with a guiding rod (12). The bottom end of the guiding rod (12) penetrates through the rectangular guiding sleeve (2) and is connected with a rubber airbag (15). The rubber airbag (15) is located at the inner bottom end position of the cavity. The inner bottom end of the rubber airbag (15) is provided with a temperature and humidity sensor (16). And the sensing head of the temperature and humidity sensor (16) penetrates through the bottom side wall of the rubber airbag (15). The signal port of the temperature and humidity sensor (16) is connected with the signal input port of the GNSS monitoring system through a wireless signal. The outer wall bottom end of the support vertical rod (3) is provided with an immersion hole, and a filter screen (5) is arranged in the immersion hole.

6. The monitoring device for the stability state of a pebble clay layer slope according to claim 5, characterized in that: The top end of the guiding rod (12) penetrates through the top end of the rectangular guiding sleeve (2) and is connected with an installation top seat (1). The bottom end of the installation top seat (1) is provided with an installation groove. The inner top end surface of the installation groove is fixedly connected with the bottom end surface of the guiding rod (12). The inner top end surface of the installation groove is fixed with a displacement sensor (11). The signal port of the displacement sensor (11) is connected with the signal input port of the GNSS monitoring system through a wireless signal.

7. The monitoring device for the stability state of a pebble clay layer slope according to claim 1, characterized in that: The counterweight block (13) is connected to the outer wall of the rectangular guide sleeve (2) through a connecting member. The connecting member includes a plurality of oval steel rings (18). The plurality of oval steel rings (18) are equally divided into two groups, and the two groups of oval steel rings (18) are distributed in parallel. Adjacent oval steel rings (18) in the same group are fixedly connected through a connecting block. A guide slider (17) is fixedly connected between one ends of the two groups of oval steel rings (18), and the other ends of the two groups of oval steel rings (18) are fixedly connected to the outer wall of the rectangular guide sleeve (2). A T-shaped buffer groove for sliding and clamping the guide slider (17) is formed in the side wall of the counterweight block (13).

8. The monitoring device for the stability state of a pebble clay layer slope according to claim 7, characterized in that: A T-shaped insertion rod (20) is fixedly arranged on the side wall of one group of oval steel rings (18), and an insertion sleeve (19) is fixedly arranged on the side wall of the other group of oval steel rings (18). The T-shaped insertion rod (20) is slidably inserted into the insertion sleeve (19).

9. The monitoring device for the stability state of a pebble clay layer slope according to claim 1, wherein: A support mechanism is arranged outside the support vertical rod (3); The support mechanism includes two semi-circular clamping seats (21). An insertion head (23) is fixedly arranged on the side wall of one end of the clamping seat (21), and an insertion groove (24) is formed in the other end of the clamping seat (21). The insertion head (23) of one clamping seat (21) is inserted into the insertion groove (24) of the other clamping seat (21). Inverted L-shaped steel pins (22) are rotatably arranged on the side walls of the two clamping seats (21) away from each other.

10. A monitoring method for the stability state of a pebble clay layer slope, which uses a monitoring device for the stability state of a pebble clay layer slope according to any one of claims 1-9, characterized in that, It includes the following steps: A1. Arbitrarily arrange encrypted measurement points according to the actual landform of the pebble clay layer slope, that is, add different numbers of support members. Slots are opened on the ground surface of each measurement point, and then the support vertical rod (3) is inserted into the slots; A2. After the support vertical rod (3) is inserted into the pre-opened slot on the slope surface, all the baffles (4) are slid out of the adjustment holes along the radial direction of the support vertical rod (3), that is, the T-shaped card slots (9) of the corresponding slide plates (8) of each baffle (4) slide along the outer wall of the T-shaped slider (10) until they cannot slide. The outer wall of the baffle (4) can be in real-time contact with the radial side wall inside the pre-opened slot; A3. Once the soil layer at the corresponding position of the baffle (4) is displaced, it will laterally push the baffle (4) to displace synchronously. In this way, the end of the push block (7) will reversely abut against the downward inclined surface of the counterweight block (13). After the pressure sensor (14) senses the thrust from the push block (7), on the one hand, it will slide the counterweight block (13) and the rectangular guide sleeve (2) upward along the axial direction of the cavity. On the other hand, the pressure signal sensed by the pressure sensor (14) is transmitted to the monitoring center of the GNSS monitoring system through a wireless signal. Combined with the monitoring data and the starting coordinates, the control center software performs quasi-real-time solution processing, and finally obtains the three-dimensional coordinates of the monitoring point. The staff can timely know the stability status of the pebble clay layer of the slope.

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