A system and method for monitoring highway subgrade slope displacement

Abstract

The present invention relates to the field of slope displacement monitoring technology, and in particular to a system and method for monitoring the displacement of highway roadbed slopes. The monitoring components are distributed in a rectangular queue, and the monitoring components include an upper cylinder and a lower vertical rod. The cylinder and the vertical rod are detachably connected. The vertical rod can be inserted and anchored on the inner side of the slope at an angle perpendicular to the ground to prevent the monitoring component from self-deviating. The bottom end of the vertical rod is fixedly connected with a cone head. In order to prevent the existing sensors from being difficult to fix during burial and easily deviating individually due to environmental changes, resulting in the monitoring elements and monitored points not being able to synchronously displace as a whole and not being able to accurately display the slope offset, the monitoring components in the present invention can be firmly rooted on the inner side of the slope. After the elastic strip at the bottom of the vertical rod is inserted into the soil, the surface area of the bottom of the vertical rod in contact with the soil is greatly increased from multiple angles, thereby playing a role in stabilizing the monitoring component.

Description

Technical Field

[0001] The present invention relates to the technical field of slope displacement monitoring, and in particular to a system and method for monitoring the displacement of highway subgrade slopes. Background Art

[0002] Highway slope deformation directly affects the safety and management of operating highways. The use of effective monitoring technology can not only respond to abnormal deformation areas in a timely manner and take remedial measures, thereby avoiding traffic control and reducing economic losses, but also pre-identify the risks of potential geological disasters and issue early warnings, thereby avoiding major casualties. Generally speaking, slope safety monitoring is attributed to the stability of rock and soil, that is, studying the stress and strength in the rock and soil. When the shear strength in the rock and soil is not sufficient to resist the sliding of the rock and soil, it will lead to slope instability or damage. Currently, in terms of slope safety monitoring, the main monitoring methods can be divided into two categories, namely contact and non-contact monitoring.

[0003] Given the unique nature of highway slope engineering, current monitoring methods and instruments have varying degrees of deficiencies. For contact-based slope safety monitoring, the primary approach involves pre-planning monitoring points and embedding various stress or displacement sensors, such as GNSS and inclinometers, at these locations. These sensors assess the slope's structural stability based on internal stress or deformation, ultimately assessing its safety. This method offers high accuracy and has been successfully applied in numerous engineering cases.

[0004] However, due to the high cost of installing a large number of sensors, such as a deep foundation pit deformation and inclination monitoring and alarm device with application number 201710753271.8, which uses "precision sensors" to detect displacement, the buried sensors need to keep synchronized movement with the surrounding soil to ensure the effectiveness of monitoring. Existing sensors are difficult to fix during burial and are prone to individual deviations due to environmental changes. In addition, the data obtained through the sensors requires professional processing and analysis of the subsequent data, which cannot intuitively reflect the movement change trend after the slope becomes unstable.

[0005] Therefore, in order to solve the above problems, a system and method for monitoring the displacement of highway subgrade slopes are proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a system and method for monitoring the displacement of highway roadbed slopes, so as to solve the problems raised in the above background technology: "the installation cost of a large number of sensors is high, the existing sensors are difficult to fix during burial, and are prone to individual deviations due to environmental changes and cannot intuitively reflect the movement changes after the slope becomes unstable."

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a system for monitoring the displacement of a highway embankment slope, comprising monitoring assemblies anchored at monitoring points on the slope, the monitoring assemblies arranged in a rectangular array, the monitoring assemblies comprising an upper cylinder and a lower vertical rod, the cylinder and the vertical rod being detachably connected, the vertical rod being insertable and anchored on the inner side of the slope at an angle perpendicular to the ground to prevent the monitoring assemblies from self-deviating;

[0008] The bottom end of the vertical rod is fixedly connected to a cone head, and a guide channel is provided on the inner side of the bottom end of the vertical rod and the inner side of the cone head. An elastic strip is slidably connected to the inner side of the guide channel. The bottom end of the elastic strip is arranged in a spike shape, and a flow channel for liquid flow is provided inside the elastic strip. A groove is provided on the lower side of the elastic strip, and the cross section of the groove is arranged in an obtuse triangle shape, and the obtuse angle is arranged on the side of the extending direction of the bottom end of the elastic strip. A pulp outlet hole is provided at the top of the groove.

[0009] A rotating ball is rotatably connected to the inner center of the top end of the cylinder, and the bottom end of the rotating ball is fixedly connected to a counterweight ball through a connecting rod. When displacement occurs at the monitoring point, the cylinder tilts, and the monitoring point is monitored by obtaining the direction and position changes of the counterweight ball in the cylinder. A data transmission module for transmitting data is provided on the inside of the cylinder.

[0010] Under the above-mentioned setting, in order to prevent the existing sensors from being difficult to fix during burial and easily deviating individually due to environmental changes, resulting in the monitoring element and the monitored point not being able to move synchronously as a whole and not being able to accurately display the slope offset, the monitoring assembly of the present invention can be firmly rooted on the inner side of the slope. After the elastic strip at the bottom of the vertical rod is inserted into the soil, the surface area of the vertical rod bottom in contact with the soil is greatly increased from multiple angles, thereby playing a role in stabilizing the monitoring assembly. At the same time, after being inserted into the soil, the elastic strip of the present invention can discharge slurry through the slurry outlet to solidify the soil around it, further playing a role in increasing the stability of the vertical rod.

[0011] The slurry outlet hole in the present invention is provided in a groove having an obtuse triangle cross section, wherein the obtuse angle is provided on the side of the extending direction of the bottom end of the elastic strip. During the advancement of the elastic strip, the groove of this shape can effectively prevent mud from entering the inner side of the top thereof, thereby protecting the slurry outlet hole from being blocked.

[0012] As a system for monitoring the displacement of highway roadbed slopes according to the present invention, preferably, a first slider and a second slider are slidably connected to the inner side of the vertical rod, grouting liquid is stored between the first slider and the second slider, the bottom end of the first slider is fixedly connected to the top end of the elastic strip, and the elastic strip is inserted into the slope by descending the first slider and cooperating with the guiding action of the guide channel.

[0013] As a system for monitoring the displacement of highway roadbed slopes according to the present invention, preferably, the bottom end of the first slider is fixedly connected to a convex ring, the interior of the first slider is hollow, the bottom end of the first slider is connected to the flow channel in the elastic strip through an opening, a slurry inlet hole is provided at the upper end of the first slider, and the vertical rod is fixedly connected to a flow pipe near the bottom.

[0014] As a system for monitoring the displacement of highway roadbed slopes according to the present invention, preferably, after the first slider is lowered to the extreme position, the grouting hole is connected to the outlet end of the flow pipe, and the inlet end of the flow pipe is connected to the grouting liquid between the first slider and the second slider. At this time, the grouting liquid between the first slider and the second slider will pass through the flow pipe, the first slider and the inner side of the elastic strip and be discharged from the grouting hole, thereby solidifying the slope soil at the monitoring point.

[0015] Under the above configuration, the elastic strips are inserted into the slope by vertically inserting a vertical rod into the monitoring point of the slope and rotating a screw rod, which causes the screw rod to move downward, thereby driving the second slider to move downward and gradually descend. The first slider follows the downward movement, and the multiple elastic strips gradually emerge from the guide channel under the guidance of the guide channel and are inserted into the soil.

[0016] When the first slider descends to the limit position, the grouting hole is connected to the outlet end of the flow pipe, and the second slider continues to descend. The grouting liquid between the first and second sliders will pass through the flow pipe, the first slider and the inner side of the elastic strip and be discharged from the grouting hole, solidifying the slope soil at the monitoring point;

[0017] As a system for monitoring the displacement of highway roadbed slopes according to the present invention, preferably, the top end of the second slider is rotatably connected to a screw, the outer side of the screw is spirally connected to the inner side of the top end of the vertical rod, and the downward movement of the second slider is achieved by the rotation of the screw, and the top end of the screw is fixedly connected to a turntable, and the rotation of the screw is achieved by the rotation of the turntable.

[0018] As a system for monitoring the displacement of highway embankment slopes of the present invention, preferably, a placement groove is opened on the inner side of the top end of the vertical pole, and the size of the placement groove matches the size of the turntable. After the turntable drops to the extreme position, it can completely enter the inner side of the placement groove to be hidden.

[0019] As a system for monitoring the displacement of highway embankment slopes according to the present invention, preferably, a mounting hole is provided on the inner side of the top end of the vertical rod, and the bottom end of the cylinder is detachably connected to the mounting hole via a snap mechanism. The snap mechanism is conventional, such as by using a spring and a block, and will not be elaborated on here.

[0020] As a system for monitoring the displacement of highway roadbed slopes according to the present invention, preferably, two slide cylinders are fixedly connected to the inner edge of the cylinder, and the azimuth angle between the two slide cylinders is 90°. The inner side of the slide cylinder is slidably connected to a piston, and the inner side of the piston is rotatably connected to a connecting rod through a connecting ball. The other end of the connecting rod is rotatably connected to the inner side of the counterweight ball through the connecting ball. In the initial state, the piston is in the middle position in the slide cylinder and the connecting rod is in a horizontal state.

[0021] As a system for monitoring the displacement of highway embankment slopes of the present invention, preferably, a position sensor is fixedly connected to the inner side of the slide cylinder, the piston slides on the position sensor, and the position of the piston in the slide cylinder is obtained by the position sensor.

[0022] Under the above settings, when the soil at the monitoring point tilts or deflects, the cylinder will inevitably tilt, and the relative position of the weighted ball and the cylinder will change. At this time, the two pistons will be displaced. By obtaining the displacement direction and size of the two pistons, the deflection direction of the monitoring point can be roughly estimated.

[0023] Because there are two slide cylinders fixedly connected to the inner edge of the cylinder, the azimuth angle between the two slide cylinders is 90 degrees, the slide cylinder on the left side can identify the left and right deviation direction of the counterweight ball, and the slide cylinder on the front side can identify the front and back deviation direction of the counterweight ball. If the piston in each slide cylinder moves in the direction away from the center of the cylinder as "+", and the piston in each slide cylinder moves in the direction close to the center of the cylinder as "-", then the cylinder can be divided into 4 sector-shaped intervals, namely "++", "+-", "-+" and "--". By combining the readings on the two pistons, the position interval of the counterweight ball after deviation can be obtained, thereby roughly estimating the deviation direction of the monitoring point;

[0024] Because the monitoring points on the slope are distributed in a rectangular array, after obtaining the data of all monitoring components on the slope, the direction of the slope's future displacement can be intuitively obtained, thereby realizing the monitoring of the slope displacement;

[0025] Specifically, when the displacement values of the two pistons are close, the counterweight ball is closer to the middle line of the sector interval. When the displacement values of the two pistons are significantly different, the counterweight ball is closer to the edge line of the sector interval, thereby achieving relatively accurate deviation direction monitoring.

[0026] A method for monitoring the displacement of a highway embankment slope comprises the following steps:

[0027] Step 1: Insert the vertical rod vertically into the monitoring point of the slope, rotate the screw rod to make it gradually descend, and the first slider follows the fall, so that multiple elastic strips are inserted into the soil;

[0028] Step 2: After the first slider descends to its limit position, the grouting hole is connected to the outlet of the flow pipe. The second slider continues to descend. The grouting liquid between the first and second sliders passes through the flow pipe, the first slider, and the inner side of the elastic strip and is discharged from the grouting hole, solidifying the slope soil at the monitoring point.

[0029] Step 3: Place the cylinder on the vertical pole for monitoring;

[0030] Step 4: When the monitoring point is tilted or offset, the cylinder will inevitably tilt, and the relative position of the counterweight ball and the cylinder will change. At this time, the two pistons will be displaced. By obtaining the displacement direction and size of the two pistons, the offset direction of the monitoring point can be roughly estimated.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. This system for monitoring the displacement of highway roadbed slopes, in order to prevent the existing sensors from being difficult to fix during installation and easily deviating individually due to environmental changes, resulting in the monitoring elements and monitored points not being able to move synchronously as a whole and not being able to accurately display the slope offset, the monitoring component in the present invention can be firmly rooted on the inner side of the slope. After the elastic strip at the bottom of the vertical rod is inserted into the soil, the surface area of the contact between the bottom of the vertical rod and the soil is greatly increased from multiple angles, thereby playing a role in stabilizing the monitoring component. At the same time, after being inserted into the soil, the elastic strip in the present invention can discharge slurry through the slurry outlet to solidify the soil around it, further playing a role in increasing the stability of the vertical rod.

[0033] 2. A system for monitoring the displacement of highway embankment slopes. The slurry outlet in the present invention is arranged in a groove with an obtuse triangle cross-section, and the obtuse angle is arranged on the side of the extending direction of the bottom end of the elastic strip. During the advancement of the elastic strip, this shape of the groove can effectively prevent mud from entering the inner side of its top, protecting the slurry outlet from being blocked.

[0034] 3. A system for monitoring the displacement of highway roadbed slopes, wherein the elastic strips are inserted into the slope in the following manner: a vertical rod is inserted vertically into the monitoring point of the slope, and a screw is rotated so that the screw can move downward, and the screw drives the second slider to move downward and gradually descend, and the first slider follows the fall, and multiple elastic strips gradually emerge from the guide channel under the guidance of the guide channel, and multiple elastic strips are inserted into the soil. When the first slider descends to the extreme position, the slurry inlet is connected to the outlet end of the flow pipe, and the second slider continues to descend. The grouting liquid between the first slider and the second slider will pass through the flow pipe, the first slider and the inner side of the elastic strip and be discharged from the slurry outlet, thereby solidifying the slope soil at the monitoring point.

[0035] 4. This system is used to monitor the displacement of highway roadbed slopes. Because two slide cylinders are fixedly connected to the inner edge of the cylinder, and the azimuth angle between the two slide cylinders is 90 degrees, the slide cylinder on the left side can identify the left and right offset direction of the counterweight ball, and the slide cylinder on the front side can identify the front and rear offset direction of the counterweight ball. If the piston in each slide cylinder moves in the direction away from the center of the cylinder as "+", and the piston in each slide cylinder moves in the direction close to the center of the cylinder as "-", then the cylinder can be divided into 4 fan-shaped intervals, which are "++", "+-", "-+" and "--". By combining the readings on the two pistons, the position interval of the counterweight ball after offset can be obtained, thereby roughly estimating the offset direction of the monitoring point. Because the monitoring points on the slope are distributed in a rectangular display, after obtaining the data of all monitoring components on the slope, the future offset direction of the slope can be intuitively obtained, thereby realizing the monitoring of the slope displacement.

[0036] 5. This system is used to monitor the displacement of highway roadbed slopes. When the displacement values of the two pistons are close, the counterweight ball is closer to the middle line of the sector interval. When the displacement values of the two pistons are significantly different, the counterweight ball is closer to the edge line of the sector interval, thereby achieving relatively accurate monitoring of the offset direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the overall installation structure of the present invention;

[0038] Figure 2 A guide map for predicting slope instability according to the present invention;

[0039] Figure 3 This is a schematic diagram of the appearance and structure of the monitoring component of the present invention;

[0040] Figure 4 This is a schematic diagram of the cross-sectional structure of the monitoring assembly of the present invention when it is not installed;

[0041] Figure 5 This is a schematic cross-sectional view of the intermediate process of installing the monitoring component of the present invention;

[0042] Figure 6 This is a schematic diagram of the cross-sectional structure of the monitoring assembly after installation of the present invention;

[0043] Figure 7 This is a schematic diagram of the installation structure in the cylinder of the present invention;

[0044] Figure 8 For the present invention Figure 5 Schematic diagram of the structure at A in FIG;

[0045] Figure 9 For the present invention Figure 5 Schematic diagram of the structure at B in FIG;

[0046] Figure 10 This is a schematic diagram of the installation structure of the convex ring of the present invention;

[0047] Figure 11 This is a schematic diagram of the orientation structure of the counterweight ball when the slope does not deviate;

[0048] Figure 12 This is a schematic diagram of the orientation structure of the counterweight ball when the slope deflects according to the present invention.

[0049] In the figure: 1. Highway; 2. Slope; 3. Monitoring component;

[0050] 31. Vertical rod; 32. Cone head; 33. Guide channel; 34. Mounting hole; 35. Screw; 36. Rotary disk; 37. Cylinder; 38. Placement slot; 39. Elastic strip; 310. Raised ring; 311. Grouting liquid; 312. First slider; 313. Flow channel; 314. Second slider; 315. Groove; 316. Slurry outlet; 317. Data transmission module; 318. Slurry inlet.

[0051] 371. Slide; 372. Piston; 373. Counterweight ball; 374. Rotating ball; 375. Connecting rod; 376. Position sensor. DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0053] Example 1, please refer to Figure 1-10 The present invention provides a technical solution: a system for monitoring the displacement of a highway embankment slope, comprising a monitoring assembly 3 anchored at a monitoring point on a slope 2, the monitoring assembly 3 being arranged in a rectangular array, the monitoring assembly 3 comprising an upper cylinder 37 and a lower vertical rod 31, the cylinder 37 and the vertical rod 31 being detachably connected, the vertical rod 31 being insertable and anchored on the inner side of the slope 2 at a perpendicular angle to the ground to prevent the monitoring assembly 3 from self-deviating;

[0054] The bottom end of the vertical rod 31 is fixedly connected to a cone head 32. A guide channel 33 is provided on the inner side of the bottom end of the vertical rod 31 and the inner side of the cone head 32. An elastic strip 39 is slidably connected to the inner side of the guide channel 33. The bottom end of the elastic strip 39 is shaped like a spike. A flow channel for liquid flow is provided inside the elastic strip 39. A groove 315 is provided on the lower side of the elastic strip 39. The cross section of the groove 315 is an obtuse triangle. The obtuse angle is provided on the side of the extending direction of the bottom end of the elastic strip 39. A pulp outlet hole 316 is provided at the top of the groove 315.

[0055] A rotating ball 374 is rotatably connected to the inner center of the top of the cylinder 37, and the bottom end of the rotating ball 374 is fixedly connected to a counterweight ball 373 through a connecting rod. When displacement occurs at the monitoring point, the cylinder 37 tilts, and the monitoring point is monitored by obtaining the direction and position changes of the counterweight ball 373 in the cylinder 37. A data transmission module 317 for transmitting data is provided inside the cylinder 37.

[0056] Under the above arrangement, in order to prevent the existing sensors from being difficult to fix during burial and easily deviating individually due to environmental changes, resulting in the monitoring element and the monitored point not being able to move synchronously as a whole and not being able to accurately display the offset of the slope 2, the monitoring assembly 3 of the present invention can be firmly rooted on the inner side of the slope 2. After the elastic strip 39 at the bottom of the vertical rod 31 is inserted into the soil, the surface area of the bottom of the vertical rod 31 in contact with the soil is greatly increased from multiple angles, thereby stabilizing the monitoring assembly 3. At the same time, after being inserted into the soil, the elastic strip 39 of the present invention can discharge slurry through the slurry outlet 316 to solidify the soil around it, further increasing the stability of the vertical rod 31.

[0057] The slurry outlet hole 316 of the present invention is provided in a groove 315 having an obtuse triangle cross section, with the obtuse angle being provided on the side of the extending direction of the bottom end of the elastic strip 39. During the advancement of the elastic strip 39, the groove 315 of this shape can effectively prevent mud from entering the inner side of the top thereof, thereby protecting the slurry outlet hole 316 from being blocked.

[0058] The inner side of the vertical rod 31 is slidably connected with a first slider 312 and a second slider 314. Grouting liquid 311 is stored between the first slider 312 and the second slider 314. The bottom end of the first slider 312 is fixedly connected to the top end of the elastic strip 39. The elastic strip 39 is inserted into the slope 2 by descending the first slider 312 and cooperating with the guiding action of the guide channel 33.

[0059] Specifically, the bottom end of the first slider 312 is fixedly connected to the convex ring 310, the interior of the first slider 312 is hollow, the bottom end of the first slider 312 is connected to the flow channel in the elastic strip 39 through an opening, the upper end of the first slider 312 is provided with a slurry inlet hole 318, and the vertical rod 31 is fixedly connected to the flow pipe 313 near the bottom.

[0060] Specifically, after the first slider 312 drops to the extreme position, the slurry inlet 318 is connected to the outlet end of the flow pipe 313, and the inlet end of the flow pipe 313 is connected to the grouting liquid 311 between the first slider 312 and the second slider 314. At this time, the grouting liquid 311 between the first slider 312 and the second slider 314 will pass through the flow pipe 313, the first slider 312 and the inner side of the elastic strip 39 and be discharged from the slurry outlet 316, solidifying the soil of the slope 2 at the monitoring point, and providing a more effective safety warning for the highway 1 near the slope 2.

[0061] Under the above configuration, the elastic strips 39 are inserted into the slope 2 by vertically inserting the vertical rod 31 into the monitoring point of the slope 2 and rotating the screw 35. The screw 35 is then moved downward, driving the second slider 314 downward and gradually descending. The first slider 312 then descends, and the multiple elastic strips 39 gradually emerge from the guide channel 33 under the guidance of the guide channel 33 and are inserted into the soil.

[0062] When the first slider 312 descends to its limit position, the grouting hole 318 is connected to the outlet end of the flow pipe 313, and the second slider 314 continues to descend. The grouting liquid 311 between the first slider 312 and the second slider 314 passes through the flow pipe 313, the first slider 312, and the inner side of the elastic strip 39 and is discharged from the grouting hole 316, thereby solidifying the soil of the slope 2 at the monitoring point.

[0063] Specifically, the top end of the second slider 314 is rotatably connected to a screw 35, the outer side of the screw 35 is spirally connected to the inner side of the top end of the vertical rod 31, and the downward movement of the second slider 314 is achieved by the rotation of the screw 35. The top end of the screw 35 is fixedly connected to a turntable 36, and the rotation of the screw 35 is achieved by the rotation of the turntable 36.

[0064] Specifically, a placement groove 38 is opened on the inner side of the top of the vertical rod 31. The size of the placement groove 38 matches the size of the turntable 36. After the turntable 36 drops to the extreme position, it can completely enter the inner side of the placement groove 38 to be hidden.

[0065] Specifically, a mounting hole 34 is provided on the inner side of the top of the vertical rod 31, and the bottom end of the cylinder 37 is detachably connected to the mounting hole 34 through a snap mechanism. The snap mechanism is a prior art, such as one implemented by a spring and a block, and will not be elaborated on here.

[0066] Example 2: This example is a further improvement of Example 1. Figure 1-12, the parts of this embodiment that are the same as those in Example 1 are not repeated here, the difference is that: two slide cylinders 371 are fixedly connected to the inner edge of the cylinder 37, the azimuth angle between the two slide cylinders 371 is 90°, the inner side of the slide cylinder 371 is slidably connected to the piston 372, the inner side of the piston 372 is rotatably connected to the connecting rod 375 through the connecting ball, the other end of the connecting rod 375 is rotatably connected to the inner side of the counterweight ball 373 through the connecting ball, and in the initial state, the piston 372 is in the middle position in the slide cylinder 371, and the connecting rod 375 is in a horizontal state.

[0067] Specifically, a position sensor 376 is fixedly connected to the inner side of the slide cylinder 371 , and the piston 372 slides on the position sensor 376 , and the position of the piston 372 in the slide cylinder 371 is obtained through the position sensor 376 .

[0068] Under the above settings, when the soil at the monitoring point tilts or deflects, the cylinder 37 will inevitably tilt, and the relative position of the weighted ball 373 and the cylinder 37 will change. At this time, the two pistons 372 will be displaced. By obtaining the displacement direction and size of the two pistons 372, the deflection direction of the monitoring point can be roughly estimated.

[0069] Because two slide cylinders 371 are fixedly connected to the inner edge of the cylinder 37, and the azimuth angle between the two slide cylinders 371 is 90 degrees, the left slide cylinder 371 can identify the left and right deviation direction of the counterweight ball 373, and the front slide cylinder 371 can identify the front and back deviation direction of the counterweight ball 373. If the piston 372 in each slide cylinder 371 moves in the direction away from the center of the cylinder 37 as "+", and the piston 372 in each slide cylinder 371 moves in the direction close to the center of the cylinder 37 as "-", then the cylinder 37 can be divided into four sector-shaped intervals, namely "++", "+-", "-+" and "--". By combining the readings on the two pistons 372, the position interval of the counterweight ball 373 after deviation can be obtained, thereby roughly estimating the deviation direction of the monitoring point;

[0070] Because the monitoring points on the slope 2 are distributed in a rectangular array, after obtaining the data of all monitoring components 3 on the slope 2, the future displacement direction of the slope 2 can be intuitively obtained, thereby realizing the monitoring of the displacement of the slope 2;

[0071] Specifically, when the movement displacement values of the two pistons 372 are close, the counterweight ball 373 is closer to the middle line of the sector-shaped interval; when the movement displacement values of the two pistons 372 are significantly different, the counterweight ball 373 is closer to the edge line of the sector-shaped interval, thereby achieving relatively accurate offset direction monitoring and providing a more effective safety warning for the highway 1 near the slope 2.

[0072] The present invention also discloses a method for monitoring the displacement of a highway roadbed slope, the method comprising the following steps:

[0073] Step 1: Insert the vertical rod 31 vertically into the monitoring point of the slope 2, rotate the screw 35 to gradually lower it, and the first slider 312 follows it to fall, so that the multiple elastic strips 39 are inserted into the soil;

[0074] Step 2: After the first slider 312 descends to its limit position, the grouting hole 318 is connected to the outlet end of the flow pipe 313, and the second slider 314 continues to descend. The grouting liquid 311 between the first slider 312 and the second slider 314 passes through the flow pipe 313, the first slider 312, and the inner side of the elastic strip 39 and is discharged from the grouting hole 316, thereby solidifying the soil of the slope 2 at the monitoring point;

[0075] Step 3: Place the cylinder 37 on the vertical rod 31 for monitoring;

[0076] Step 4: When the monitoring point is tilted or offset, the cylinder 37 will inevitably tilt, and the relative position of the counterweight ball 373 and the cylinder 37 will change. At this time, the two pistons 372 will be displaced. By obtaining the displacement direction and size of the two pistons 372, the offset direction of the monitoring point can be roughly estimated.

[0077] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A system for monitoring the displacement of a highway embankment slope, comprising a monitoring assembly (3) anchored at a monitoring point on the slope (2), characterized in that: The monitoring components (3) are arranged in a rectangular array. The monitoring components (3) include an upper cylinder (37) and a lower vertical rod (31). The cylinder (37) and the vertical rod (31) are detachably connected. The vertical rod (31) can be inserted and anchored on the inner side of the slope (2) at an angle perpendicular to the ground to prevent the monitoring components (3) from self-deviating. The bottom end of the vertical rod (31) is fixedly connected to a cone head (32), and a guide channel (33) is provided on the inner side of the bottom end of the vertical rod (31) and the inner side of the cone head (32). The inner side of the guide channel (33) is slidably connected to an elastic strip (39), and the bottom end of the elastic strip (39) is arranged in a spike shape. A flow channel for liquid flow is provided inside the elastic strip (39). A groove (315) is provided on the lower side of the elastic strip (39), and the cross section of the groove (315) is arranged in an obtuse triangle shape, with the obtuse angle being arranged on the side of the extending direction of the bottom end of the elastic strip (39). A pulp outlet hole (316) is provided at the top of the groove (315); A rotating ball (374) is rotatably connected to the inner center of the top of the cylinder (37), and a counterweight ball (373) is fixedly connected to the bottom of the rotating ball (374) via a connecting rod. When displacement occurs at the monitoring point, the cylinder (37) tilts, and the monitoring point is monitored by obtaining the direction and position change of the counterweight ball (373) in the cylinder (37). A data transmission module (317) for transmitting data is provided on the inside of the cylinder (37). Two slide cylinders (371) are fixedly connected to the inner edge of the cylinder (37). The azimuth angle between the two slide cylinders (371) is 90 degrees. The inner edge of the slide cylinder (371) is fixedly connected to the inner edge of the cylinder (37). A piston (372) is connected to the side slidingly, and the inner side of the piston (372) is rotatably connected to a connecting rod (375) via a connecting ball. The other end of the connecting rod (375) is rotatably connected to the inner side of the counterweight ball (373) via a connecting ball. In the initial state, the piston (372) is in the middle position in the slide cylinder (371), and the connecting rod (375) is in a horizontal state. A position sensor (376) is fixedly connected to the inner side of the slide cylinder (371). The piston (372) slides on the position sensor (376), and the position of the piston (372) in the slide cylinder (371) is obtained through the position sensor (376). The inner side of the vertical rod (31) is slidably connected to a first slider (312) and a second slider (314), grouting liquid (311) is stored between the first slider (312) and the second slider (314), the bottom end of the first slider (312) is fixedly connected to the top end of the elastic strip (39), and the elastic strip (39) is inserted into the slope (2) by descending the first slider (312) and cooperating with the guiding action of the guide channel (33), so that the monitoring component (3) and the monitoring area move synchronously.

2. A system for monitoring the displacement of a highway embankment slope according to claim 1, characterized in that: The bottom end of the first slider (312) is fixedly connected to a convex ring (310), the interior of the first slider (312) is hollow, the bottom end of the first slider (312) is connected to the flow channel in the elastic strip (39) through an opening, the upper end of the first slider (312) is provided with a pulp inlet hole (318), and the vertical rod (31) is fixedly connected to a flow pipe (313) near the bottom.

3. The system for monitoring the displacement of highway embankment slopes according to claim 2, characterized in that: After the first slider (312) descends to the limit position, the grouting hole (318) is connected to the outlet end of the flow pipe (313), and the inlet end of the flow pipe (313) is connected to the grouting liquid (311) between the first slider (312) and the second slider (314). At this time, the grouting liquid (311) between the first slider (312) and the second slider (314) will pass through the flow pipe (313), the first slider (312) and the inner side of the elastic strip (39) and be discharged from the grouting hole (316), thereby solidifying the soil of the slope (2) at the monitoring point.

4. The system for monitoring the displacement of highway embankment slopes according to claim 3, characterized in that: The top end of the second slider (314) is rotatably connected to a screw rod (35), the outer side of the screw rod (35) is spirally connected to the inner side of the top end of the vertical rod (31), and the downward movement of the second slider (314) is achieved by the rotation of the screw rod (35). The top end of the screw rod (35) is fixedly connected to a turntable (36), and the rotation of the turntable (36) is achieved by the rotation of the screw rod (35).

5. The system for monitoring the displacement of highway embankment slopes according to claim 4, characterized in that: A placement groove (38) is provided on the inner side of the top end of the vertical rod (31). The size of the placement groove (38) matches the size of the turntable (36). After the turntable (36) is lowered to the limit position, it can completely enter the inner side of the placement groove (38) to be hidden.

6. The system for monitoring the displacement of highway embankment slopes according to claim 5, characterized in that: A mounting hole (34) is provided on the inner side of the top end of the vertical rod (31), and the bottom end of the cylinder (37) is detachably connected to the mounting hole (34) via a snap mechanism.

7. A method for monitoring the displacement of a highway embankment slope, characterized in that: The system for monitoring the displacement of highway embankment slopes according to claim 6 is used, wherein the steps are: Step 1: vertically insert the vertical rod (31) into the monitoring point of the slope (2), rotate the screw (35) to gradually lower it, and the first slider (312) follows the fall, so that the multiple elastic strips (39) are inserted into the soil; Step 2: After the first slider (312) descends to the limit position, the grouting hole (318) is connected to the outlet end of the flow pipe (313), and the second slider (314) continues to descend. The grouting liquid (311) between the first slider (312) and the second slider (314) passes through the flow pipe (313), the first slider (312) and the inner side of the elastic strip (39) and is discharged from the grouting hole (316), thereby solidifying the soil of the slope (2) at the monitoring point; Step 3: Place the cylinder (37) on the vertical rod (31) for monitoring; Step 4: When the monitoring point is tilted or offset, the cylinder (37) will inevitably tilt, and the relative position of the counterweight ball (373) and the cylinder (37) will change. At this time, the two pistons (372) will be displaced. The offset direction of the monitoring point can be roughly estimated by obtaining the displacement direction and size of the two pistons (372).

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