Intelligent sensing and monitoring system for land subsidence

Abstract

The invention relates to the technical field of intelligent monitoring of land subsidence, in particular to an intelligent sensing and monitoring system for land subsidence. Comprising a monitoring part which comprises a monitoring pipe and a monitoring ring, the monitoring ring is arranged outside the monitoring pipe in a sleeving mode, a plurality of sets of detection modules are arranged in the monitoring ring, each detection module comprises an adjusting rod and a detection magnetic block, and the magnetic force of each detection magnetic block is sequentially reduced from top to bottom; the intelligent sensing monitoring part comprises a monitoring handle, a monitoring head and a connecting seat which are sequentially arranged from top to bottom, a lever is arranged at the upper end of the monitoring handle, a driving motor and a monitoring sensor are arranged in the monitoring head, and the monitoring sensor is used for monitoring magnetic force of different detection magnetic blocks at the same height; vertical settlement and inclined settlement can be distinguished, the inclination angle and direction can be measured, and the relative settlement difference (namely inclination) of rock-soil layers with different depths can be measured by monitoring the position change of the pipe, which is key information for evaluating the stratum stability and the structural risk.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent monitoring of land subsidence, and in particular to an intelligent sensing monitoring system for land subsidence. Background Art

[0002] Land subsidence, also known as ground subsidence or ground subsidence, is a localized downward movement (or engineering geological phenomenon) caused by the consolidation and compression of loose underground strata under the influence of human engineering and economic activities, resulting in a lowering of the Earth's surface elevation. It is currently a major engineering geological problem in major cities around the world. It generally manifests itself in two forms: regional and localized subsidence. It can cause buildings to tilt, undermine foundation stability, and cause seawater backflow in coastal cities, significantly impacting production and daily life.

[0003] During construction, ground settlement needs to be monitored to adjust construction schedules and parameters based on the amount of settlement. The traditional monitoring method is to use a magnetic ring settlement meter, which uses a soft ruler settlement meter in conjunction with a settlement tube and a settlement magnetic ring to monitor foundation settlement.

[0004] In order to enable the settlement magnetic ring to move smoothly along the settlement tube, the inner diameter of the settlement magnetic ring needs to be larger than the settlement tube. When the foundation settlement around the settlement magnetic ring is different, the settlement magnetic ring is prone to tilt, and the tilted settlement magnetic ring affects the accuracy of settlement monitoring; at the same time, after the settlement tube and settlement magnetic ring are placed, the settlement magnetic ring is prone to tilt during the backfilling process, which will also affect the accuracy of settlement monitoring.

[0005] Therefore, the present application provides a ground subsidence intelligent sensing monitoring system to solve the problem in the prior art that the tilt of the subsidence magnetic ring affects the monitoring precision and accuracy. Summary of the Invention

[0006] In order to solve the above problems, the present invention provides a land subsidence intelligent sensing monitoring system.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a land subsidence intelligent sensing monitoring system, including the following parts: The monitoring portion includes a monitoring tube and a monitoring ring. The monitoring ring is sleeved on the outside of the monitoring tube. Several detection modules are arranged inside the monitoring ring. The detection modules include an adjustment rod and a detection magnet. The magnetic force of the detection magnet decreases from top to bottom. The detection magnet is threadedly connected to the adjustment rod. A connecting rod is slidably provided inside the adjustment rod. The connecting end of the connecting rod passes through the monitoring tube and is arranged inside the monitoring tube. The intelligent sensing monitoring part includes a monitoring handle, a monitoring head and a connecting seat arranged in sequence from top to bottom. The upper end of the monitoring handle is configured with a lever. The interior of the monitoring head is configured with a driving motor and a monitoring sensor. The monitoring sensor is used to monitor the magnetic force of different detection magnetic blocks at the same height. The driving motor is used to drive the monitoring head, the monitoring handle and the connecting seat to produce relative rotation. The interior of the connecting seat is configured with a telescopic rod and an adjusting motor. The output shaft of the adjusting motor is detachably connected to the connecting rod. After the adjusting motor is connected to the connecting rod, it drives the connecting rod and the adjusting rod to rotate, so that the detection magnetic block moves along the adjusting rod. The telescopic rod is used to push the connecting rod to move toward the inside of the adjusting rod.

[0008] As an optimization, the inner diameter of the monitoring ring is larger than the outer diameter of the monitoring tube, and a retractable sealing ring is arranged between the inner ring top and the inner ring bottom of the monitoring ring and the monitoring tube, and the retractable sealing ring can be retracted and contracted along the radial direction of the monitoring tube.

[0009] As an optimization, an annular accommodating cavity is provided inside the monitoring ring, a limiting rod arranged parallel to the adjusting rod is provided inside the accommodating cavity, and the detection magnetic block is slidably connected to the limiting rod; The adjusting rod is rotatably connected to the inner wall of the monitoring ring. A connecting thread is provided on the outside of the adjusting rod, and a connecting screw hole is provided on the detection magnetic block.

[0010] As an optimization, a hexagonal hole is opened inside the adjusting rod, and a connecting block is configured at one end of the connecting rod connected to the adjusting rod. The connecting block is slidably arranged in the hexagonal hole, and a support spring is connected between the connecting block and the bottom of the hexagonal hole; A limiting wedge is provided inside the connecting block, and a limiting groove is provided inside the hexagonal hole. When the connecting rod is pushed into the adjusting rod, the outer end of the connecting rod leaves the inner side of the monitoring tube, and the limiting wedge pops into the limiting groove to lock the position of the connecting rod.

[0011] As an optimization, a connecting prism hole is provided at the connecting end of the connecting rod, and a connecting prism is provided at the output shaft of the regulating motor, and the connecting prism is cooperatively connected with the connecting prism hole; An adjustment channel is provided inside the connecting seat, the adjustment motor is arranged in the adjustment channel, the telescopic rod is fixedly connected to the connecting seat, the extended end of the telescopic rod is connected to the housing of the adjustment motor, and when the telescopic rod is extended or retracted, the adjustment motor is driven to move along the adjustment channel.

[0012] As an optimization, a guide groove is provided on the inner wall of the monitoring tube, a guide block is provided at the lower part of the connecting seat, the guide groove is used to accommodate the guide block, and the connecting rod is relatively arranged on the inner wall of the monitoring tube; A receiving opening with a bottom opening is formed at the lower portion of the guide block, and the output shaft of the regulating motor is located inside the receiving opening.

[0013] As an optimization, the monitoring handle is provided with a connecting groove with two ends extending therethrough, and the connecting groove is provided with a guide assembly, which includes a guide rod and a balance wheel rotatably connected to the end of the guide rod. A spring shaft is connected between the middle of the guide rod and the monitoring handle. Limit rods are provided on both sides of the guide rod. The two limit rods are staggered up and down so that the two balance wheels are located at different heights. Under the action of the spring shaft, the balance wheels have a tendency to press against the inner wall of the monitoring tube. The length of the guide rod is greater than the inner diameter of the monitoring tube. After the monitoring handle enters the monitoring tube, the guide rod rotates toward the axis of the monitoring handle.

[0014] As an optimization, after the monitoring part is installed, the intelligent detection sensor part moves downward along the height direction of the monitoring tube to calibrate the monitoring rings one by one. When the monitoring head detects that the magnetic forces of multiple detection modules in the same monitoring ring are different, it connects to the connecting rod of the detection module through the connecting seat, and drives the detection magnetic block of the detection module to move along the adjusting screw until the magnetic force of the detection module on the monitoring head is the same as that of other detection modules; During the settlement monitoring process, when the monitoring ring tilts, the detection magnetic blocks inside the monitoring ring are located at different heights, and the intelligent sensing monitoring part detects different magnetic forces at the same height when performing settlement monitoring.

[0015] This solution is a land subsidence intelligent sensing monitoring system, which has the following benefits: By installing detection magnets with magnetic gradients inside the monitoring ring, when the monitoring ring settles (vertically moves) or tilts (angle changes) with the surrounding soil layer, its position relative to the monitoring tube changes. The intelligent sensing monitoring part can move up and down within the monitoring tube, and use the monitoring sensors it carries to accurately sense the magnetic strength of each detection magnet at the same height horizontal plane in real time at different heights. When a monitoring ring tilts, the detection magnets at the same height inside it will be at different distances from the monitoring head due to the height change, and the perceived magnetic strength will also be different. It can distinguish between vertical settlement and inclined settlement, and measure the angle and direction of inclination. By monitoring the changes in the position of the tube, it can not only measure the absolute settlement at a certain depth, but also measure the relative settlement difference (i.e. inclination) of rock and soil layers at different depths. This is key information for assessing stratum stability and structural risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axial side schematic diagram of the monitoring part of the present invention.

[0017] Figure 2 This is a schematic diagram of the axle side of the intelligent sensing monitoring part of the present invention.

[0018] Figure 3 This is a schematic diagram of the bottom axis of the intelligent sensor monitor of the present invention.

[0019] Figure 4 It is a schematic diagram of the axial side of the present invention.

[0020] Figure 5 It is a main schematic diagram of the present invention.

[0021] Figure 6 For the present invention Figure 5 AA section structure main view schematic diagram.

[0022] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of part B.

[0023] Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged structure of part C.

[0024] Figure 9 For the present invention Figure 6 Schematic diagram of the enlarged structure of part D.

[0025] Among them, 1. monitoring tube, 2. monitoring ring, 3. monitoring handle, 4. monitoring head, 5. connecting seat, 6. lever, 7. adjusting rod, 8. detection magnet, 9. connecting rod, 10. driving motor, 11. monitoring sensor, 12. telescopic rod, 13. adjusting motor, 14. telescopic sealing ring, 15. accommodating chamber, 16. limiting rod, 17. supporting spring, 18. limiting wedge, 19. limiting groove, 20. connecting edge hole, 21. adjusting channel, 22. guide groove, 23. guide block, 24. accommodating opening, 25. connecting groove, 26. guide rod, 27. balance wheel. DETAILED DESCRIPTION

[0026] like Figures 1-9 As shown, a land subsidence intelligent sensing monitoring system includes the following parts: The monitoring portion includes a monitoring tube 1 and a monitoring ring 2. The monitoring ring 2 is sleeved on the outside of the monitoring tube 1. Several detection modules are provided inside the monitoring ring 2. The detection modules include an adjustment rod 7 and a detection magnet 8. The magnetic force of the detection magnet 8 decreases from top to bottom. The detection magnet 8 is threadedly connected to the adjustment rod 7. A connecting rod 9 is slidably provided inside the adjustment rod 7. The connecting end of the connecting rod 9 passes through the monitoring tube 1 and is provided on the inside of the monitoring tube 1. The intelligent sensing monitoring part includes a monitoring handle 3, a monitoring head 4 and a connecting seat 5 arranged in sequence from top to bottom. The upper end of the monitoring handle 3 is configured with a lever 6. The interior of the monitoring head 4 is configured with a drive motor 10 and a monitoring sensor 11. The monitoring sensor 11 is used to monitor the magnetic force of different detection magnetic blocks 8 at the same height. The drive motor 10 is used to drive the monitoring head 4 to rotate relative to the monitoring handle 3 and the connecting seat 5. The interior of the connecting seat 5 is configured with a telescopic rod 12 and an adjusting motor 13. The output shaft of the adjusting motor 13 is detachably connected to the connecting rod 9. After the adjusting motor 13 is connected to the connecting rod 9, it drives the connecting rod 9 and the adjusting rod 7 to rotate, so that the detection magnetic block 8 moves along the adjusting rod 7. The telescopic rod 12 is used to push the connecting rod 9 to move toward the inside of the adjusting rod 7.

[0027] Monitoring tubes 1 are laid vertically in pre-drilled holes in the foundation, with multiple monitoring rings 2 placed at intervals. Backfill soil is then added to secure the rings. Auxiliary belts are placed around the rings to increase contact with the surrounding soil and prevent separation.

[0028] When the settling distance of the monitoring ring 2 needs to be monitored, the intelligent sensing monitoring part is extended into the monitoring tube 1, and the position of the detection magnet 8 in the monitoring ring 2 is monitored by the monitoring sensor 11. The monitoring sensor 11 can be a GMR magnetoresistive sensor, a TMR tunnel magnetoresistive sensor, or any other sensor capable of monitoring the magnetic force of the detection magnet 8.

[0029] like Figure 6 As shown, the inner diameter of the monitoring ring 2 is larger than the outer diameter of the monitoring tube 1 , and a retractable sealing ring 14 is arranged between the inner ring top of the monitoring ring 2 and the inner ring bottom of the monitoring ring 2 and the monitoring tube 1 , and the retractable sealing ring 14 can be retracted and contracted along the radial direction of the monitoring tube 1 .

[0030] The retractable sealing ring 14 is made of soft plastic, silicone, etc. with a certain elasticity. The retractable sealing ring 14 is used to block soil, gravel, etc. to prevent soil from entering between the monitoring tube 1 and the monitoring ring 2. The retractable sealing ring 14 has a certain retractable margin and does not affect the settlement of the monitoring ring 2.

[0031] like Figure 8 As shown, an annular accommodating chamber 15 is provided inside the monitoring ring 2. A limiting rod 16 arranged parallel to the adjusting rod 7 is provided inside the accommodating chamber 15. The detection magnetic block 8 is slidably connected to the limiting rod 16. The adjusting rod 7 is rotatably connected to the inner wall of the monitoring ring 2 . A connecting thread is provided on the outside of the adjusting rod 7 , and a connecting screw hole is provided on the detection magnetic block 8 .

[0032] The limiting rod 16 and the adjusting rod 7 are arranged horizontally and parallel to each other, and are arranged along the radial direction of the monitoring tube 1. The detection magnetic block 8 is vertically connected between the limiting rod 16 and the adjusting rod 7.

[0033] like Figure 8 As shown, a hexagonal hole is formed inside the adjusting rod 7, and a connecting block is provided at one end of the connecting rod 9 connected to the adjusting rod 7. The connecting block is slidably disposed in the hexagonal hole, and a support spring 17 is connected between the connecting block and the bottom of the hexagonal hole; A limiting wedge 18 is provided inside the connecting block, and a limiting groove 19 is provided inside the hexagonal hole. When the connecting rod 9 is pushed into the adjusting rod 7, the outer end of the connecting rod 9 leaves the inner side of the monitoring tube 1, and the limiting wedge 18 bounces into the limiting groove 19 to lock the position of the connecting rod 9.

[0034] The connecting rod 9 can slide along the length direction of the adjusting rod 7, and the two cannot rotate relative to each other. When the telescopic rod 12 extends, the output shaft of the regulating motor 13 pushes the connecting rod 9 to move inside the adjusting rod 7.

[0035] A mounting hole with an outer end opening is provided inside the connecting block, and a compression spring is provided inside the mounting hole. When the mounting hole and the limiting groove 19 are arranged relative to each other, the compression spring pushes the limiting wedge block 18 into the limiting groove 19.

[0036] like Figure 7 and Figure 8 As shown, the connecting end of the connecting rod 9 is provided with a connecting prism hole 20, and the output shaft of the regulating motor 13 is provided with a connecting prism, and the connecting prism is matched and connected with the connecting prism hole 20; An adjustment channel 21 is provided inside the connecting seat 5, and the adjustment motor 13 is arranged in the adjustment channel 21. The telescopic rod 12 is fixedly connected to the connecting seat 5, and the extended end of the telescopic rod 12 is connected to the outer shell of the adjustment motor 13. When the telescopic rod 12 is extended or retracted, the adjustment motor 13 is driven to move along the adjustment channel 21.

[0037] The fixed end of the telescopic rod 12 is fixedly connected to the connecting seat 5, and the extended end of the telescopic rod 12 can be inserted into the adjustment channel 21. In the initial state, the adjustment motor 13 is located at the bottom of the adjustment channel 21, and the telescopic rod 12 is in a shortened state. At this time, the output shaft of the adjustment motor 13 extends out of the adjustment channel 21.

[0038] like Figure 7 and Figure 8 As shown, the inner wall of the monitoring tube 1 is provided with a guide groove 22, and the lower part of the connecting seat 5 is provided with a guide block 23, the guide groove 22 is used to accommodate the guide block 23, and the connecting rod 9 is relatively arranged thereto; A bottom-opening receiving opening 24 is defined at the lower portion of the guide block 23 , and the output shaft of the regulating motor 13 is located inside the receiving opening 24 .

[0039] In the initial state, the outer end of the output shaft of the adjusting motor 13 is located in the accommodating opening 24. When the connecting seat 5 moves from top to bottom to the inside of the monitoring ring 2, the outer end of the connecting rod 9 is also located inside the accommodating opening 24. When the telescopic rod 12 is extended, the output shaft of the pushing adjusting motor 13 can be connected relative to the outer end of the connecting rod 9.

[0040] like Figure 1 and Figure 4 As shown, the diameter of the monitoring head 4 is smaller than the inner diameter of the monitoring tube 1 , and the monitoring head 4 is equipped with a drive motor 10 , the output shaft of the drive motor 10 is fixedly connected to the monitoring handle 3 ; The inner wall of the monitoring tube 1 is provided with a guide groove 22 , and the monitoring handle 3 is provided with a guide component. After the intelligent sensor monitor enters the interior of the monitoring tube 1 , the guide component moves along the guide groove 22 .

[0041] The monitoring handle 3 and the monitoring tube 1 do not rotate relative to each other. The driving motor 10 can drive the monitoring head 4 to rotate slowly and uniformly, so that the monitoring sensor 11 can monitor the multiple detection magnetic blocks 8 inside the monitoring ring 2 one by one.

[0042] like Figure 4 As shown, the monitoring handle 3 is provided with a connecting slot 25 with two ends extending therethrough. The connecting slot 25 is provided with a guide assembly, which includes a guide rod 26 and a balance wheel 27 rotatably connected to the end of the guide rod 26. A spring shaft is connected between the middle portion of the guide rod 26 and the monitoring handle 3. Limit rods 16 are provided on both sides of the guide rod 26. The two limit rods 16 are staggered up and down so that the two balance wheels 27 are located at different heights. Under the action of the spring shaft, the balance wheels 27 have a tendency to press against the inner wall of the monitoring tube 1. The length of the guide rod 26 is greater than the inner diameter of the monitoring tube 1 . After the monitoring handle 3 enters the monitoring tube 1 , the guide rod 26 rotates toward the axis of the monitoring handle 3 .

[0043] The monitoring handle 3 can be moved under the push of the lever 6, and a motor can also be configured to make the monitoring handle 3 move downward on its own. Two balance wheels 27 are arranged one above and one below relative to each other.

[0044] The number of the communication slots 25 is the same as the number of the detection modules, and the detection modules are preferably arranged in 3-4 groups.

[0045] When the monitoring ring 2 tilts, the detection magnetic blocks 8 inside the monitoring ring 2 are located at different heights. When the intelligent sensor monitor is performing settlement monitoring, the magnetic forces detected at the same height are different.

[0046] After the monitoring part is installed, the intelligent detection sensor part moves downward along the height direction of the monitoring tube 1 to calibrate the monitoring rings 2 one by one. When the monitoring head 4 detects that the magnetic forces of multiple detection modules on the same monitoring ring 2 are different, it is connected to the connecting rod 9 of the detection module through the connecting seat 5, and the detection magnetic block 8 of the detection module is driven to move along the adjusting screw until the magnetic force of the detection module on the monitoring head 4 is the same as that of the other detection modules; During the settlement monitoring process, when the monitoring ring 2 tilts, the detection magnetic blocks 8 inside the monitoring ring 2 are located at different heights. When the intelligent sensing monitoring part performs settlement monitoring, the magnetic forces detected at the same height are different.

[0047] Directions: When the device is used, a pre-drilling is first performed at the location to be monitored; According to the monitoring depth, several monitoring rings 2 are connected to the monitoring pipe 1, and the monitoring pipe 1 with the monitoring rings 2 arranged is lowered into the pre-drilled hole; After backfilling, the intelligent sensing monitoring part is extended downward by lever 6, and the initial state of the monitoring ring 2 is verified by the intelligent sensing monitoring part. The specific process is as follows: The intelligent sensing monitoring part moves downward along the guide groove 22 until it moves to the inner side of the monitoring ring 2 and the outer end of the connecting rod 9 is located inside the receiving opening 24 of the guide block 23; By driving the motor 10 to rotate, the monitoring head 4 is driven to rotate, and the magnetic force of multiple detection modules inside the monitoring ring 2 is monitored by the monitoring sensor 11. If the magnetic force monitored at the same position is the same, it indicates that the monitoring ring 2 is in a horizontal state, and the telescopic rod 12 is extended to make the output shaft of the adjustment motor 13 relatively plugged into the connecting rod 9, and the connecting rod 9 is continued to be pushed toward the inside of the adjustment rod 7 until the limit wedge 18 is inserted into the limit groove 19. The intelligent sensing monitoring part is pushed downward by the lever 6 to continue to calibrate other monitoring rings 2; When the monitoring sensor 11 detects that the magnetic forces of multiple detection magnets 8 at the same height are different, it indicates that the position of the monitoring ring 2 has tilted or shifted. In this case, the positions of the detection magnets 8 with different magnetic forces need to be adjusted by the telescopic rod 12 and the adjustment motor 13 so that the magnetic forces of the multiple detection magnets 8 in the same horizontal direction relative to the monitoring head 4 are the same. The specific steps are as follows: For the detection magnet 8 with a smaller magnetic force, the telescopic rod 12 is extended to drive the output shaft of the adjustment motor 13 to be plugged relative to the connecting rod 9. The adjustment motor 13 rotates, which drives the adjustment rod 7 to rotate, and drives the detection magnet 8 to move closer to the monitoring tube 1 until the magnetic force of the detection magnet 8 is the same as that of other detection magnets 8 in the same horizontal direction. For the detection magnet 8 with a larger magnetic force, the telescopic rod 12 is extended to drive the output shaft of the adjustment motor 13 to be plugged into the connecting rod 9. The adjustment motor 13 drives the adjustment rod 7 to rotate in the opposite direction, driving the detection magnet 8 to move away from the monitoring tube 1 until the magnetic forces of multiple detection magnets 8 in the same horizontal direction are the same.

[0048] After all monitoring rings 2 have been verified, the intelligent sensing monitoring part is pulled upward out of the monitoring tube 1. The geological settlement around the monitoring tube 1 is monitored through the monitoring ring 2. The settlement of the monitoring ring 2 is monitored regularly using the intelligent sensing monitoring part. The specific process is as follows: When in use, the lever 6 is used to push the intelligent sensing monitoring part downward to the inner side of the monitoring ring 2, and the monitoring sensor 11 is used to monitor the magnetic force of the monitoring ring 2. When the magnetic forces in the same horizontal direction are the same and the monitoring ring 2 sinks, it indicates that the geological vertical settlement in the area has occurred. When the magnetic forces in the same direction are different, the geology of the surface area undergoes uneven settlement. Based on the height changes of the magnetic forces of multiple detection modules, the settlement height and settlement angle of the monitoring ring 2 can be determined, and a comprehensive judgment can be made based on the settlement conditions of adjacent monitoring rings 2.

[0049] The above-mentioned specific embodiments are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product form and style of the above-mentioned specific embodiments. Any intelligent sensing monitoring system for ground subsidence that complies with the claims of the present invention and any appropriate changes or modifications made thereto by ordinary technicians in the corresponding technical field shall fall within the patent protection scope of the present invention.

Claims

1. A land subsidence intelligent sensing monitoring system, characterized by: Includes the following parts: The monitoring part comprises a monitoring tube (1) and a monitoring ring (2), wherein the monitoring ring (2) is sleeved on the outside of the monitoring tube (1), and a plurality of detection modules are arranged inside the monitoring ring (2), wherein the detection modules comprise an adjusting rod (7) and a detection magnetic block (8), wherein the magnetic force of the detection magnetic block (8) decreases from top to bottom, the detection magnetic block (8) is threadedly connected to the adjusting rod (7), and a connecting rod (9) is slidably arranged inside the adjusting rod (7), and the connecting end of the connecting rod (9) passes through the monitoring tube (1) and is arranged on the inner side of the monitoring tube (1); The intelligent sensing monitoring part comprises a monitoring handle (3), a monitoring head (4) and a connecting seat (5) which are arranged in sequence from top to bottom. The upper end of the monitoring handle (3) is provided with a lever (6). The interior of the monitoring head (4) is provided with a driving motor (10) and a monitoring sensor (11). The monitoring sensor (11) is used to monitor the magnetic force of different detection magnetic blocks (8) at the same height. The driving motor (10) is used to drive the monitoring head (4) to rotate relative to the monitoring handle (3) and the connecting seat (5). The interior of the connecting seat (5) is provided with a telescopic rod (12) and an adjusting motor (13). The output shaft of the adjusting motor (13) is detachably connected to the connecting rod (9). After the adjusting motor (13) is connected to the connecting rod (9), it drives the connecting rod (9) and the adjusting rod (7) to rotate, so that the detection magnetic block (8) moves along the adjusting rod (7). The telescopic rod (12) is used to push the connecting rod (9) to move toward the inside of the adjusting rod (7).

2. The intelligent sensing monitoring system for land subsidence according to claim 1, characterized in that: The inner diameter of the monitoring ring (2) is larger than the outer diameter of the monitoring tube (1). A retractable sealing ring (14) is arranged between the top of the inner ring of the monitoring ring (2), the bottom of the inner ring of the monitoring ring (2) and the monitoring tube (1). The retractable sealing ring (14) can be retracted and contracted along the radial direction of the monitoring tube (1).

3. The intelligent sensing monitoring system for land subsidence according to claim 1, characterized in that: An annular accommodating chamber (15) is provided inside the monitoring ring (2), a limiting rod (16) arranged parallel to the adjusting rod (7) is provided inside the accommodating chamber (15), and the detection magnetic block (8) is slidably connected to the limiting rod (16); The adjusting rod (7) is rotatably connected to the inner wall of the monitoring ring (2); a connecting thread is provided on the outside of the adjusting rod (7); and a connecting screw hole is provided on the detection magnetic block (8).

4. The intelligent sensing monitoring system for land subsidence according to claim 1, characterized in that: A hexagonal hole is provided inside the adjusting rod (7); one end of the connecting rod (9) connected to the adjusting rod (7) is provided with a connecting block, the connecting block is slidably arranged in the hexagonal hole, and a supporting spring (17) is connected between the connecting block and the bottom of the hexagonal hole; A limiting wedge (18) is provided inside the connecting block, and a limiting groove (19) is provided inside the hexagonal hole. When the connecting rod (9) is pushed into the adjusting rod (7), the outer end of the connecting rod (9) leaves the inner side of the monitoring tube (1), and the limiting wedge (18) pops into the limiting groove (19) to lock the position of the connecting rod (9).

5. The intelligent sensing monitoring system for land subsidence according to claim 1 is characterized in that: The connecting end of the connecting rod (9) is provided with a connecting prism hole (20), and the output shaft of the regulating motor (13) is provided with a connecting prism, and the connecting prism is cooperatively connected with the connecting prism hole (20); An adjusting channel (21) is provided inside the connecting seat (5), the adjusting motor (13) is arranged in the adjusting channel (21), the telescopic rod (12) is fixedly connected to the connecting seat (5), the extended end of the telescopic rod (12) is connected to the housing of the adjusting motor (13), and when the telescopic rod (12) is extended or retracted, the adjusting motor (13) is driven to move along the adjusting channel (21).

6. The intelligent sensing monitoring system for land subsidence according to claim 1, characterized in that: The inner wall of the monitoring tube (1) is provided with a guide groove (22), the lower part of the connecting seat (5) is provided with a guide block (23), the guide groove (22) is used to accommodate the guide block (23), and the connecting rod (9) is relatively arranged thereto; A bottom-opening accommodating opening (24) is provided at the lower portion of the guide block (23), and the output shaft of the regulating motor (13) is located inside the accommodating opening (24).

7. The intelligent sensing monitoring system for land subsidence according to claim 6, characterized in that: The monitoring handle (3) is provided with a connecting groove (25) with two ends extending therethrough. The connecting groove (25) is provided with a guide assembly, the guide assembly comprising a guide rod (26) and a balance wheel (27) rotatably connected to the end of the guide rod (26). A spring shaft is connected between the middle of the guide rod (26) and the monitoring handle (3). Limit rods (16) are provided on both sides of the guide rod (26). The two limit rods (16) are staggered up and down so that the two balance wheels (27) are located at different heights. Under the action of the spring shaft, the balance wheel (27) has a tendency to press against the inner wall of the monitoring tube (1). The length of the guide rod (26) is greater than the inner diameter of the monitoring tube (1); after the monitoring handle (3) enters the monitoring tube (1), the guide rod (26) rotates toward the axis of the monitoring handle (3).

8. The intelligent sensing monitoring system for land subsidence according to claim 1, characterized in that: After the monitoring part is installed, the intelligent detection sensor part moves downward along the height direction of the monitoring tube (1) to calibrate the monitoring rings (2) one by one. When the monitoring head (4) detects that the magnetic forces of multiple detection modules of the same monitoring ring (2) are different, it is connected to the connecting rod (9) of the detection module through the connecting seat (5) to drive the detection magnetic block (8) of the detection module to move along the adjusting screw until the magnetic force of the detection module on the monitoring head (4) is the same as that of the other detection modules; During the sedimentation monitoring process, when the monitoring ring (2) tilts, the detection magnetic blocks (8) inside the monitoring ring (2) are located at different heights, and the magnetic forces detected by the intelligent sensing monitoring part at the same height are different when performing sedimentation monitoring.

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