Method for monitoring displacement inside soil body of bank slope and monitoring anchor rod

Abstract

A method for monitoring internal displacement of bank slope soil and a monitoring anchor rod with a self-calibration module are disclosed. The method includes a monitoring anchor rod body with a limiting seat fixed to one end and a handle fixed to the other end. An air source pipe and a monitoring line are also installed on the monitoring anchor rod body. An anchoring and limiting stabilization component is installed at the end of the monitoring anchor rod body away from the limiting seat. The anchoring and limiting stabilization component includes an air cylinder, and an inflatable anchoring airbag is installed on the outside of the air cylinder. This bank slope soil internal displacement monitoring anchor rod with a self-calibration module, by setting an inflatable anchoring airbag and a spiral inflatable anchoring rib with a communicating inner cavity, expands outward after inflation and makes large-area contact with the borehole wall of the high-water-content loose soil, improving the softening and fluid sliding state of the soil and enhancing the shear resistance of the soil at the anchoring location.

Description

Technical Field

[0001] This invention relates to the field of water conservancy monitoring, specifically to a method for monitoring the internal displacement of slope soil and an anchor rod. Background Technology

[0002] Monitoring the internal displacement of the slope soil can obtain real-time deformation data of soil at different depths, accurately identify the location of potential sliding zones and the trend of sliding development, determine the stability of the slope based on the rate of displacement change, capture early signs of landslide instability, and quantitatively evaluate the protective effectiveness of support and reinforcement, drainage and other treatment projects, providing reliable measured data for flood season risk warning, slope safety operation and maintenance and emergency response.

[0003] When monitoring the internal displacement of slope soil, monitoring anchors are typically used. Taking the VWD type vibrating wire settlement gauge as an example, it is suitable for measuring the settlement deformation (bedrock settlement deformation) of earth-rock dams, slopes, foundations, and other backfill soil structures, and can simultaneously measure the temperature at the installation point. The sensor used in the vibrating wire settlement gauge is a VWD type vibrating wire displacement gauge, which is composed of a set of accessories.

[0004] The most commonly used vibrating wire settlement gauge has a spiral blade at the bottom for anchoring with deep, stable soil. However, for soils with high water content and loose structure, the shear strength is extremely low. After the spiral blade is inserted, the surrounding soil is easily crushed, softened, and undergoes plastic slippage, failing to form an effective gripping force. This results in insufficient bearing capacity of the anchoring foundation, failure of the deep stability benchmark, and synchronous settlement and slippage of the measurement benchmark point with the shallow soil, causing distortion of the relative displacement measurement data between the dam abutment and the soil. Summary of the Invention

[0005] The purpose of this invention is to provide a method for monitoring the internal displacement of slope soil and the anchor rod used therein, so as to solve the problems mentioned in the background art.

[0006] A method for monitoring internal displacement of slope soil involves burying the instrument in a borehole in the slope, fixing the deep stable soil at the bottom with an anchoring component as a reference, and attaching the upper settlement plate to the soil layer to be measured. When the soil is compressed or slipped, it will drive the measuring rod to transmit relative displacement. Pulling the steel string inside the instrument changes the vibration frequency, and the acquisition equipment reads the frequency to calculate the displacement value. The method continuously acquires settlement deformation data at different depths inside the slope soil to complete the monitoring of internal displacement of the soil. By setting up inflatable expansion anchoring airbags and spiral expansion anchoring ribs with connected inner cavities, the entire structure expands outward after inflation and comes into large-area contact with the borehole wall of the high-water-content loose soil. This improves the softening and fluid sliding state of the soil, enhances the shear resistance of the soil at the anchoring location, forms a large-area contact anchoring structure, improves the bearing capacity of the anchoring foundation, reduces the situation where the anchoring point settles and slides synchronously with the shallow soil, and alleviates the problem of deviation in the relative displacement monitoring data between the dam abutment and the soil caused by the offset of the deep monitoring benchmark. First, the monitoring anchor rod is inserted into the borehole of the bank slope, and the air source pipe enters the air inlet to expand the anchoring airbag through the air cylinder; the airbag is inflated and expanded; after inflation, the expanded anchoring airbag (25) and the spiral expanded anchoring rib (251) together squeeze and adhere to the hole wall of the high water content loose soil, so that the soil particles adhere to each other and improve the structural strength of the soil itself. The expanded airbag, rib and hole wall soil are closely attached to a large area to form a multi-faceted contact anchoring structure, so that the anchoring limit stabilizing component (200) is firmly stuck in the deep stable soil layer. When the soil settles or slides during the monitoring process, the monitoring line (103) transmits the soil displacement data synchronously to complete the continuous monitoring of the relative displacement between the dam shoulder and the bank slope soil.

[0007] The aforementioned method for monitoring displacement within the slope soil, specifically the method of inserting a monitoring anchor rod into a borehole in the slope, allowing the air source pipe to enter the air inlet and inflate the airbag through an air cylinder, refers to inserting the monitoring anchor rod body (100) with the air source pipe (21) and monitoring line (103) into the borehole of the slope by holding the handle (102). The limiting seat (101) at one end of the monitoring anchor rod body (100) acts as a limiting and blocking function, and the end of the monitoring anchor rod body (100) The force-bearing wheel (23) is threaded through the screw seat (22). The force-bearing protrusion (231) on the outer wall of the force-bearing wheel (23) can contact the soil of the hole wall during the feeding process to assist in pushing. The air source pipe (21) passes through the force-bearing wheel (23) and connects to the internal air inlet (28). The L-shaped docking seat A (26) and docking seat B (27) are respectively installed in the air inlet (28). The air source is introduced into the expansion anchoring airbag (25) through the air inlet (28) and docking seat A (26).

[0008] The method for monitoring internal displacement of the slope soil, wherein the inflation and expansion of the airbag refers to: the air source is sent into the air cylinder (24) through the air inlet (28) and the docking seat B (27), the gas is released outward from multiple sets of exhaust holes (241) on the outer wall of the air cylinder (24), the expansion anchoring airbag (25) expands outward after inflation, the spiral expansion anchoring ribs (251) on the outer side of the airbag expand synchronously with the airbag, the inner cavity (2511) of the ribs is connected to the inner cavity (2511) of the airbag synchronously filled with gas to improve the support hardness of the ribs, and the tip (252) at the bottom of the expansion anchoring airbag (25) is convenient to break the loose soil when the drill rod is pushed in the early stage.

[0009] The aforementioned method for monitoring internal displacement of slope soil involves the expansion anchoring airbag (25) and the spiral expansion anchoring rib (251) working together to press and adhere to the borehole wall of the loose soil with high water content, allowing soil particles to adhere to each other and improving the structural strength of the soil itself. Specifically, multiple sets of force-bearing protrusions (231) are set on the outer wall of the force-bearing wheel (23), and a tip (252) is set at the bottom of the expansion anchoring airbag (25). The tip (252) can reduce the resistance of the loose soil when the device is sent into the borehole. During the pushing process of the force-bearing protrusion (231), it can slightly scrape the loose soil on the surface of the borehole wall, making it convenient for the expansion anchoring airbag (25) to fully expand and adhere to the deep original soil.

[0010] The method for monitoring internal displacement of the slope soil uses concentrically arranged air cylinders (24) and expansion anchoring airbags (25) with separate L-shaped docking seats A (26) and B (27) for separate air supply. The expansion amplitude of the airbags and the size of the soil pressure relief airflow can be adjusted separately to adapt to soil conditions with different looseness and moisture content. The split structure of the screw seat (22) with threaded assembly also facilitates on-site disassembly and replacement of the anchoring and limiting stabilizing components (200), reducing the difficulty of on-site installation and extending the service life of the device for long-term buried monitoring.

[0011] The method uses a slope soil internal displacement monitoring anchor rod, including a monitoring anchor rod body (100), a limiting seat (101) fixed at the end of the monitoring anchor rod body (100), and a handle (102) fixed at the end of the limiting seat (101). An air source pipe (21) and a monitoring line (103) are also installed on the monitoring anchor rod body (100). An anchoring limiting and stabilizing component (200) is installed at the end of the monitoring anchor rod body (100) away from the limiting seat (101). The anchoring limiting and stabilizing component (200) includes an air cylinder (24), and an expansion anchoring airbag (25) is installed on the outside of the air cylinder (24).

[0012] The displacement monitoring anchor rod inside the slope soil has multiple sets of exhaust holes (241) on the outer circumference of the air cylinder (24), and the axial cross section of the air cylinder (24) and the expansion anchoring airbag (25) is a concentric circle structure; the expansion anchoring rib (251) is fixed on the outer circumference of the expansion anchoring airbag (25), and an inner cavity (2511) is opened in the expansion anchoring rib (251), which is connected to the expansion anchoring airbag (25), and the expansion anchoring rib (251) has a spiral structure.

[0013] The displacement monitoring anchor rod inside the slope soil has a tip (252) fixed at the bottom of the expansion anchoring airbag (25), and the tip (252) has a circular cross-section; the anchoring limiting and stabilizing component (200) also includes a force-bearing wheel (23), and multiple sets of force-bearing protrusions (231) are fixed on the outer circumference of the force-bearing wheel (23). A screw seat (22) is fixed at the upper end of the force-bearing wheel (23), and the screw seat (22) is screwed into the screw hole opened on the end face of the monitoring anchor rod body (100).

[0014] The displacement monitoring anchor rod inside the slope soil has an air source pipe (21) inserted through the force wheel (23), and an air inlet (28) is provided inside the force wheel (23). The end of the air source pipe (21) is fixed inside the air inlet (28). A docking seat A (26) and a docking seat B (27) are fixed on the cross-section of the air inlet (28), and the cross-sections of docking seat A (26) and docking seat B (27) are both L-shaped. The docking seat A (26) and docking seat B (27) are sealed and connected to the bottom surface of the force wheel (23).

[0015] The displacement monitoring anchor rod inside the slope soil has the expansion anchoring airbag (25) fixedly connected to the end of the docking seat A (26), and the air cylinder (24) fixedly connected to the end of the docking seat B (27). The cross-section of the docking seat A (26), docking seat B (27) and air inlet (28) is circular. Beneficial effects

[0016] 1. This solution uses an inflatable, expandable anchoring airbag and a spiral expandable anchoring rib with a connected inner cavity. After inflation, the entire structure expands outward and makes large-area contact with the borehole wall of the high-water-content loose soil. This improves the softening and fluid sliding state of the soil, enhances the shear resistance of the soil at the anchoring location, and compared to a structure where a single spiral blade only partially engages with the soil, this device can form a large-area contact anchoring structure, improve the bearing capacity of the anchoring foundation, reduce the situation where the anchoring point settles and slides synchronously with the shallow soil, and alleviate the problem of deviation in the relative displacement monitoring data between the dam abutment and the soil caused by the offset of the deep monitoring benchmark.

[0017] 2. This design incorporates multiple sets of force-bearing protrusions on the outer wall of the force-bearing wheel and a pointed tip at the bottom of the expansion anchoring airbag. The pointed tip reduces the resistance of loose soil when the device is inserted into the borehole. During the pushing process, the force-bearing protrusions can slightly scrape the loose soil on the surface of the borehole wall, facilitating the expansion anchoring airbag to fully expand and conform to the deep undisturbed soil. Simultaneously, the concentrically arranged air cylinders and expansion anchoring airbags are paired with separate L-shaped docking seats A and B for separate air supply. The expansion amplitude of the airbag and the amount of airflow for soil decompression can be adjusted separately to adapt to soil conditions with different degrees of looseness and moisture content. The split structure of the threaded assembly of the bolted seat also facilitates on-site disassembly and replacement of the anchoring and limiting stabilizing components, reducing the difficulty of on-site installation and extending the service life of the device for long-term buried monitoring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the anchoring and limiting stabilizing component of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the three-dimensional structure of the anchoring and limiting stabilizing component of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the air cylinder and its connection structure of the present invention; Figure 6 This is a schematic diagram of the inflatable anchoring airbag and its connection structure of the present invention.

[0019] The diagram is labeled as follows: 100, monitoring anchor body; 101, limiting seat; 102, handle; 103, monitoring line; 200, anchoring and limiting stabilizing component; 21, air supply pipe; 22, bolt seat; 23, force-bearing wheel; 231, force-bearing protrusion; 24, air cylinder; 241, exhaust port; 25, expansion anchoring airbag; 251, expansion anchoring rib; 2511, inner cavity; 252, tip; 26, docking seat A; 27, docking seat B; 28, air inlet. Detailed Implementation

[0020] This invention provides a slope soil internal displacement monitoring anchor with a self-calibration module, including a monitoring anchor body 100, a limiting seat 101 fixed at one end of the monitoring anchor body 100, and a handle 102 fixed at the end of the limiting seat 101. An air source pipe 21 and a monitoring line 103 are also installed on the monitoring anchor body 100. An anchoring limiting and stabilizing component 200 is installed at one end of the monitoring anchor body 100 away from the limiting seat 101. The anchoring limiting and stabilizing component 200 includes an air cylinder 24, and an inflatable anchoring airbag 25 is installed on the outside of the air cylinder 24.

[0021] In a preferred embodiment, multiple sets of exhaust holes 241 are provided on the outer circumferential wall of the air cylinder 24, and the axial cross-section of the air cylinder 24 and the expansion anchoring airbag 25 is a concentric circle structure.

[0022] An expansion anchoring rib 251 is fixed on the outer circumference of the expansion anchoring airbag 25, and an inner cavity 2511 is opened inside the expansion anchoring rib 251. The inner cavity 2511 is connected to the expansion anchoring airbag 25, and the expansion anchoring rib 251 has a spiral structure.

[0023] The bottom of the inflatable anchoring airbag 25 is fixed with a tip 252, and the tip 252 has a circular cross-section.

[0024] The anchoring and stabilizing component 200 also includes a force-bearing wheel 23, and multiple sets of force-bearing protrusions 231 are fixed on the outer circumference of the force-bearing wheel 23. A screw seat 22 is fixed on the upper end of the force-bearing wheel 23, and the screw seat 22 is screwed into a screw hole opened on the end face of the monitoring anchor body 100.

[0025] An air supply pipe 21 is also inserted through the force-bearing wheel 23, and an air inlet 28 is provided through the force-bearing wheel 23. The end of the air supply pipe 21 is fixed inside the air inlet 28.

[0026] A docking seat A26 and a docking seat B27 are fixed on the cross-section of the air inlet 28, and the cross-sections of docking seat A26 and docking seat B27 are both L-shaped. Both docking seat A26 and docking seat B27 are sealed and connected to the bottom surface of the force-bearing wheel 23.

[0027] An expansion anchoring airbag 25 is fixedly connected to the end of docking seat A26, and an air cylinder 24 is fixedly connected to the end of docking seat B27. The cross-section of docking seat A26, docking seat B27 and air inlet 28 is circular.

[0028] By setting up an inflatable, expandable anchoring airbag 25 and a spiral expandable anchoring rib 251 with a connected inner cavity 2511, the entire structure expands outward after inflation and comes into large-area contact with the borehole wall of the high-water-content loose soil. This improves the softening and fluid sliding state of the soil, enhances the shear resistance of the soil at the anchoring location, and compared to a structure where a single spiral blade only partially engages with the soil, this device can form a large-area contact anchoring structure, improve the bearing capacity of the anchoring foundation, reduce the situation where the anchoring point settles and slides synchronously with the shallow soil, and alleviate the problem of deviation in the relative displacement monitoring data between the dam shoulder and the soil caused by the offset of the deep monitoring benchmark.

[0029] The operator, holding handle 102, inserts the monitoring anchor body 100, equipped with air supply pipe 21 and monitoring line 103, into the borehole on the bank slope. A limiting seat 101 at one end of the monitoring anchor body 100 acts as a limiting and blocking mechanism. A force-bearing wheel 23 is threaded onto the end of the monitoring anchor body 100 via a bolted connector 22. A force-bearing protrusion 231 on the outer wall of the force-bearing wheel 23 can contact the borehole wall soil during insertion to assist in pushing the anchor. The air supply pipe 21 passes through the force-bearing wheel 23 and connects to an internal air inlet 28. L-shaped docking seats A26 and B27 are respectively installed inside the air inlet 28. Air is supplied through the air inlet 28 and docking seat A26 into the expansion anchoring airbag 25. Simultaneously, air is supplied through the air inlet 28 and docking seat B27 into an air cylinder 24. Gas is released outwards from multiple sets of exhaust holes 241 on the outer wall of the air cylinder 24. The expansion anchoring airbag 25 inflates and expands outwards. The spiral-shaped expansion anchoring rib 251 expands synchronously with the airbag. The inner cavity 2511 of the rib, which is connected to the airbag, is simultaneously filled with gas to enhance the support hardness of the rib. The tip 252 at the bottom of the expansion anchoring airbag 25 facilitates the breaking of loose soil during the initial drilling rod push. After inflation, the expansion anchoring airbag 25 and the spiral expansion anchoring rib 251 together compress and adhere to the borehole wall of the high water content loose soil, allowing the soil particles to adhere to each other and enhance the structural strength of the soil itself. The expanded airbag, rib, and borehole wall soil are tightly adhered to a large area, forming a multi-faceted contact anchoring structure, replacing the original single spiral blade interlocking fixation form, so that the anchoring limit stabilizing component 200 is firmly stuck in the deep stable soil layer. When the soil settles or slides during the monitoring process, the monitoring line 103 synchronously transmits the soil displacement data, completing the continuous monitoring of the relative displacement between the dam abutment and the bank slope soil.

[0030] Multiple sets of force-bearing protrusions 231 are set on the outer wall of the force-bearing wheel 23, and a tip 252 is set at the bottom of the expansion anchoring airbag 25. The tip 252 can reduce the resistance of loose soil when the device is sent into the borehole. During the pushing process, the force-bearing protrusions 231 can slightly scrape the loose soil on the surface of the borehole wall, which makes it easier for the expansion anchoring airbag 25 to fully expand and fit into the deep original soil. At the same time, the air cylinders 24 arranged in concentric circles are used with the expansion anchoring airbag 25 and the split L-shaped docking seats A26 and B27 to supply air separately. The expansion amplitude of the airbag and the size of the soil pressure relief airflow can be adjusted separately to adapt to soil conditions with different degrees of looseness and moisture content. The split structure of the threaded assembly of the screw seat 22 also facilitates on-site disassembly and replacement of the anchoring limit stabilization component 200, reduces the difficulty of on-site installation, and extends the service life of the device for long-term buried monitoring.

[0031] We recommend using the VWD vibrating wire settling meter, which features automatic temperature compensation and a temperature correction factor less than the minimum reading, eliminating the need for temperature correction during use. The vibrating wire settling meter has a parameter recognition function. It is manufactured with this function built-in, storing the factory-calibrated basic sensor parameters and temperature-related parameters. The acquisition device reads and recognizes all built-in parameters, automatically offsetting data interference caused by temperature using the temperature correction factor (less than the minimum reading), and simultaneously retrieves the standard calibration curve to compare with the real-time sensor signal. It then uses the built-in calibration parameters to correct the measured output value in real time, thus achieving self-calibration.

[0032] The process of monitoring the displacement of the anchor rod body 100 inside the slope soil is as follows: it is buried in the borehole of the slope, the bottom anchoring component fixes the deep stable soil as a reference, the upper settlement plate is attached to the soil layer to be measured, when the soil compresses or slides, it will drive the measuring rod to transmit the relative displacement, pull the steel string inside the instrument to change the vibration frequency, the acquisition equipment reads the frequency and converts the displacement value, continuously acquires settlement deformation data at different depths inside the slope soil, and completes the internal displacement monitoring of the soil.

Claims

1. A method for monitoring displacement within a bank slope soil mass, characterized by: The instrument is buried in a borehole on the bank slope. The bottom anchoring component fixes the deep stable soil as a reference, and the upper settlement plate is attached to the soil layer to be measured. When the soil is compressed or slipped, it will drive the measuring rod to transmit relative displacement. The internal steel string of the instrument is pulled to change the vibration frequency. The acquisition equipment reads the frequency and converts it into displacement value. The settlement deformation data at different depths inside the bank slope soil are continuously acquired to complete the internal displacement monitoring of the soil. By setting up inflatable expansion anchoring airbags and spiral expansion anchoring ribs with connected inner cavities, the entire structure expands outward after inflation and comes into large-area contact with the borehole wall of the high-water-content loose soil. This improves the softening and fluid sliding state of the soil, enhances the shear resistance of the soil at the anchoring location, forms a large-area contact anchoring structure, improves the bearing capacity of the anchoring foundation, reduces the situation where the anchoring point settles and slides synchronously with the shallow soil, and alleviates the problem of deviation in the relative displacement monitoring data between the dam abutment and the soil caused by the offset of the deep monitoring benchmark. First, the monitoring anchor rod is inserted into the borehole of the bank slope, and the air source pipe enters the air inlet to expand the anchoring airbag through the air cylinder; the airbag is inflated and expanded; after inflation, the expanded anchoring airbag (25) and the spiral expanded anchoring rib (251) together squeeze and adhere to the hole wall of the high water content loose soil, so that the soil particles adhere to each other and improve the structural strength of the soil itself. The expanded airbag, rib and hole wall soil are closely attached to a large area to form a multi-faceted contact anchoring structure, so that the anchoring limit stabilizing component (200) is firmly stuck in the deep stable soil layer. When the soil settles or slides during the monitoring process, the monitoring line (103) transmits the soil displacement data synchronously to complete the continuous monitoring of the relative displacement between the dam shoulder and the bank slope soil.

2. The method for monitoring internal displacement of slope soil according to claim 1, characterized in that: The process of sending the monitoring anchor rod into the borehole of the bank slope, allowing the air source pipe to enter the air inlet and the gas to expand the anchoring airbag through the air cylinder, refers to sending the monitoring anchor rod body (100) with the air source pipe (21) and monitoring line (103) into the borehole of the bank slope by holding the handle (102). The limiting seat (101) at one end of the monitoring anchor rod body (100) plays a limiting and blocking role. The end of the monitoring anchor rod body (100) is threadedly fitted with the force wheel (23) through the screw seat (22). The force-bearing protrusion (231) on the outer wall of the force wheel (23) can contact the soil of the borehole wall during the sending process to assist in pushing. The air source pipe (21) passes through the force wheel (23) and connects to the internal air inlet (28). The air inlet (28) is fitted with L-shaped docking seat A (26) and docking seat B (27) respectively. The air source is introduced into the expansion anchoring airbag (25) through the air inlet (28) and docking seat A (26).

3. The method for monitoring internal displacement of slope soil according to claim 1 or 2, characterized in that: The inflation and expansion of the airbag refers to: the air source is sent into the air cylinder (24) through the air inlet (28) and the docking seat B (27), the gas is released outward from the multiple exhaust holes (241) on the outer wall of the air cylinder (24), the expansion anchoring airbag (25) expands outward after inflation, the spiral expansion anchoring ribs (251) on the outer side of the airbag expand synchronously with the airbag, the inner cavity (2511) of the ribs is connected to the inner cavity (2511) of the airbag and gas is simultaneously filled in to improve the support hardness of the ribs, and the tip (252) at the bottom of the expansion anchoring airbag (25) is convenient to break the loose soil when the drill rod is pushed in the early stage.

4. The method for monitoring internal displacement of slope soil according to claim 1, 2, or 3, characterized in that: The expansion anchoring airbag (25) and the spiral expansion anchoring rib (251) together compress and adhere to the hole wall of the loose soil with high water content, so that the soil particles adhere to each other and improve the structural strength of the soil itself. Specifically, multiple sets of force-bearing protrusions (231) are set on the outer wall of the force-bearing wheel (23), and a tip (252) is set at the bottom of the expansion anchoring airbag (25). The tip (252) can reduce the resistance of the loose soil when the device is sent into the borehole. During the pushing process of the force-bearing protrusion (231), it can slightly scrape the loose soil on the surface of the hole wall, so that the expansion anchoring airbag (25) can fully expand and adhere to the deep original soil.

5. The method for monitoring internal displacement of slope soil according to claim 1, 2, 3, or 4, characterized in that: The concentrically arranged air cylinder (24) and the expansion anchoring airbag (25) are paired with separate L-shaped docking seats A (26) and B (27) for separate air supply. The expansion amplitude of the airbag and the size of the soil pressure relief airflow can be adjusted separately to adapt to soil conditions with different looseness and moisture content. The split structure of the screw seat (22) is also convenient for on-site disassembly and replacement of the anchoring limit stabilizing component (200), reducing the difficulty of on-site installation and extending the service life of the device for long-term buried monitoring.

6. A slope soil internal displacement monitoring anchor used in the method according to any one of claims 1-5, comprising a monitoring anchor body (100), characterized in that: The monitoring anchor body (100) is fixed with a limiting seat (101) at one end, and a handle (102) is fixed at the end of the limiting seat (101). An air source pipe (21) and a monitoring line (103) are also installed on the monitoring anchor body (100). An anchoring limiting and stabilizing component (200) is installed at one end of the monitoring anchor body (100) away from the limiting seat (101). The anchoring limiting and stabilizing component (200) includes an air cylinder (24), and an expansion anchoring airbag (25) is installed on the outside of the air cylinder (24).

7. The anchor rod for monitoring displacement inside the slope soil according to claim 6, characterized in that: The air cylinder (24) has multiple sets of exhaust holes (241) on its outer circumference, and the axial cross-section of the air cylinder (24) and the expansion anchoring airbag (25) is a concentric circle structure; the expansion anchoring rib (251) is fixed on the outer circumference of the expansion anchoring airbag (25), and an inner cavity (2511) is opened in the expansion anchoring rib (251). The inner cavity (2511) and the expansion anchoring airbag (25) are connected. The expansion anchoring rib (251) has a spiral structure.

8. The slope soil internal displacement monitoring anchor according to claim 6 or 7, characterized in that: The bottom of the inflatable anchoring airbag (25) is fixed with a tip (252), and the tip (252) has a circular cross-section; the anchoring limiting and stabilizing component (200) also includes a force-bearing wheel (23), and multiple sets of force-bearing protrusions (231) are fixed on the outer circumference of the force-bearing wheel (23). A screw seat (22) is fixed at the upper end of the force-bearing wheel (23), and the screw seat (22) is screwed into the screw hole opened on the end face of the monitoring anchor body (100).

9. The slope soil internal displacement monitoring anchor according to claim 6, 7, or 8, characterized in that: The force-bearing wheel (23) is also inserted with the air source pipe (21), and the force-bearing wheel (23) is provided with an air inlet (28). The end of the air source pipe (21) is fixed in the air inlet (28). The air inlet (28) is fixed with a docking seat A (26) and a docking seat B (27) respectively. The docking seat A (26) and the docking seat B (27) are both L-shaped in cross-section. The docking seat A (26) and the docking seat B (27) are both sealed and connected to the bottom surface of the force-bearing wheel (23).

10. The slope soil internal displacement monitoring anchor according to claim 6 or 7, or 8 or 9, characterized in that: The end of the docking seat A (26) is fixedly connected to the expansion anchoring airbag (25), and the end of the docking seat B (27) is fixedly connected to the air cylinder (24). The cross-section of the docking seat A (26), docking seat B (27) and air inlet (28) is circular.

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