A real-time monitoring system for settlement of pile foundation in soft soil

Abstract

The present application relates to pile foundation monitoring technical field, disclose a kind of soft soil in pile foundation settlement real-time monitoring system, including the installation ring of movable sleeve being arranged in the outside of pile foundation, the outside of installation ring is movably sleeved with connecting ring, connecting assembly for connecting connecting ring is equipped on installation ring, the top side of connecting ring is fixed with mounting block, the end of mounting block away from connecting ring is equipped with mounting slot, slidingly connected with loading block in the inside of mounting slot, loading block top is fixed with mounting frame, and monitoring card is fixed in the inside of mounting frame. Above all, the present application has made remarkable progress in low cost, high precision, real-time, anti-interference and so on, effectively solved the technical problems of "precision and cost cannot be obtained simultaneously", "benchmark with stratum subsidence" and "difficult to record continuous settlement data in real time" in prior art, with good popularization value and application prospect.

Description

Technical Field

[0001] This invention relates to the field of pile foundation monitoring technology, and in particular to a real-time monitoring system for pile foundation settlement in soft soil. Background Technology

[0002] Soft soil is characterized by high compressibility, high water content, low strength, and significant rheological properties. Under these geological conditions, pile foundations are prone to slow settlement, differential settlement, and creep deformation. Excessive deformation can damage the substructure of buildings and even affect the normal use of the superstructure. Therefore, continuous and accurate settlement monitoring of pile foundations in soft soil sites is of great practical significance for engineering safety.

[0003] Currently, various pile foundation settlement monitoring technologies have been proposed. For example, the utility model patent with authorization announcement number CN224048240U discloses a real-time monitoring device for pile foundation creep in near-shore soft soil sites. This device uses a triaxial tilt sensor and a laser rangefinder mounted on a crossbeam to achieve real-time monitoring of differential settlement between piles and settlement of the pile foundation surface. The invention patent application with application publication number CN108425384A proposes a monitoring device based on a fiber optic grating sensor. This device uses a frame and fiber optic strain gauges or displacement gauges installed within the pile foundation to monitor the settlement or compression of the top of the pile in real time. Furthermore, the utility model patent with authorization announcement number CN202321882631.1 provides a pile foundation settlement monitoring device based on a U-shaped tube and piston structure, utilizing a hydraulic transmission-triggered alarm mechanism to indicate pile foundation settlement.

[0004] However, the aforementioned technologies still have certain limitations. While solutions based on fiber optic gratings or triaxial tilt sensors can achieve automated monitoring, their system structure is complex, deployment costs are high, and they have strict requirements for construction techniques and operating environments. Mechanical alarm devices based on U-tubes and pistons, although simple in structure, have fixed settlement thresholds, making it difficult to record settlement values ​​in a timely manner and resulting in poor adaptability. Traditional manual monitoring methods, such as attaching settlement strips, using levels or total stations, suffer from low efficiency, insufficient accuracy, and the inability to provide real-time feedback.

[0005] Furthermore, in actual engineering projects, pile foundation settlement is often accompanied by deformation of the surrounding soil. Some existing monitoring devices are directly installed on the ground near the pile foundation. When the pile foundation settles, the surrounding soil may settle synchronously, causing the monitoring benchmark to become unstable and affecting the reliability of the measurement results.

[0006] Therefore, there is an urgent need for a pile foundation settlement monitoring system that is structurally sound, easy to install, capable of real-time monitoring and recording of settlement values, and adaptable to the complex deformation characteristics of soft soil sites. Summary of the Invention

[0007] To address the technical problem of poor performance of existing monitoring devices, this invention provides a real-time monitoring system for pile foundation settlement in soft soil.

[0008] This invention employs the following technical solution: a real-time monitoring system for pile foundation settlement in soft soil, comprising an installation ring movably fitted around the outside of the pile foundation, a connecting ring movably fitted around the outside of the installation ring, a connecting component for connecting the connecting ring on the installation ring, an installation block fixed to the top side of the connecting ring, an installation groove formed at the end of the installation block away from the connecting ring, a loading block slidably connected inside the installation groove, an installation frame fixed to the top of the loading block, a monitoring plate fixed inside the installation frame, a base on the outside of the pile foundation, a support column fixed to the top side of the base, a top plate fixed to the end of the support column away from the base, a monitoring camera between the base and the top plate, and a laser emitter on one side of the monitoring camera. The laser emitter illuminates the scale on the monitoring plate, and the monitoring camera monitors the laser point on the monitoring plate. When pile foundation settlement occurs, the monitoring plate will shift with the pile foundation displacement, and the laser point of the laser emitter will shift on the scale of the monitoring plate. The monitoring camera can then record the value of the pile foundation displacement.

[0009] As a further improvement to the above solution, the monitoring sign is provided with scales on the outside, and the output ends of the monitoring camera and laser emitter correspond to the monitoring sign. Through the scales on the monitoring sign, staff can easily observe the numerical value of the pile foundation displacement.

[0010] As a further improvement to the above solution, the connecting assembly includes an annular groove formed on the outer side of the mounting ring. Multiple connecting blocks fixed to the inner wall of the connecting ring are slidably connected inside the annular groove. Rack plates are provided on both sides inside the mounting ring. A drive shaft is provided on one side of the rack plate. A gear is fixedly sleeved on the outer wall of the drive shaft to mesh with the adjacent rack plate. Multiple teeth located below the mounting ring are fixed on the inner wall of the connecting ring. A motor is fixed on the inner wall at the bottom of the mounting ring. A drive shaft is driven to the output end of the motor. A gear is fixedly sleeved on the outer wall of the drive shaft to mesh with the teeth. Fixed connecting blocks are fixed at both ends of the rack plate. A receiving end is provided at the end of the fixed connecting block away from the rack plate. The first receiving slot has a second fixing block slidably inserted inside it. The second fixing block, located outside the first receiving slot, is threadedly connected to a bolt. The pile foundation has a threaded groove corresponding to the bolt. The bolt is threadedly connected inside an adjacent threaded groove. The end of the second fixing block, located inside the first receiving slot, has a second receiving slot. A slider is slidably connected inside the second receiving slot. A locking block fixed on the slider slides through the opening of the second receiving slot. The first fixing block has multiple locking slots corresponding to the locking blocks. The locking blocks slide inside adjacent locking slots. Through the operation of the above components, the height of the monitoring sign can be adjusted, the position of the monitoring sign can be adjusted, and the positions of the second fixing block and the bolt can be adjusted.

[0011] As a further improvement to the above solution, one end of the drive shaft is connected to a motor, and a fixing plate is fixed on the inner wall of the mounting ring on the outside of the motor. The other end of the drive shaft is rotatably connected to the fixing plate, which is also fixed on the inner wall of the mounting ring. The operation of the motor can drive the drive shaft to rotate.

[0012] As a further improvement to the above solution, limiting plates are provided on both sides of the gear one. The limiting plates are fixed to the adjacent rack plate. The limiting plates can limit the gear one on the rack plate, improve the stability of the gear one, and prevent the gear one from deviating during the displacement process.

[0013] As a further improvement to the above solution, the loading block located inside the mounting slot has a mounting hole, and a connecting shaft is fixedly inserted inside the mounting hole. One end of the connecting shaft is rotatably connected to the inner wall of one end of the mounting slot, and the other end of the connecting shaft extends to the outside of the mounting block and is fixed with a lever. A bolt is threadedly connected to the lever. The end of the mounting block near the lever has multiple threaded grooves. The bolts are threadedly connected to the inside of adjacent threaded grooves. Through the operation of the above components, the corresponding angle of the monitoring sign can be adjusted.

[0014] As a further improvement to the above solution, a plurality of push springs are fixed on the side of the slider away from the block. The end of the push spring away from the slider is fixed on the inner wall of the receiving groove. By pushing the elasticity of the spring, the displaced slider and block can be pushed to reset their displacement.

[0015] As a further improvement to the above solution, a mounting plate is fixed to the tail end of the surveillance camera, and the laser emitter is fixed to the mounting plate. A sliding groove is provided at one end of the mounting plate near the top plate. A sliding block fixed to the bottom side of the top plate slides through the sliding groove. A transmission block is fixed to the side of the mounting plate away from the surveillance camera. A threaded sleeve is embedded in the transmission block. A lead screw passes through the internal thread of the threaded sleeve. Rotating the lead screw, through the cooperation of the lead screw and the threaded sleeve, drives the threaded sleeve and the transmission block to move vertically, thereby driving the surveillance camera and the laser emitter to move vertically. At this time, the corresponding positions of the surveillance camera and the laser emitter can be adjusted.

[0016] As a further improvement to the above solution, one end of the lead screw is rotatably connected to the bottom side of the top plate, and the other end of the lead screw is fixed with a handle, which allows the user to easily rotate the lead screw.

[0017] As a further improvement to the above solution, the card block is a rectangular block, the card slot is a rectangular slot, and the depth of the second receiving slot is greater than the length of the card block. Through the second receiving slot, which has a depth greater than the length of the card block, the card block can be effectively stored.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. Achieve low-cost, high-precision real-time settlement monitoring, balancing economy and reliability.

[0020] This invention employs a relative measurement structure of "pile-mounted target + remote ground benchmark." The monitoring sign moves synchronously with the pile foundation, while the laser transmitter and monitoring camera are fixed to a stable, hardened ground surface. This fundamentally eliminates false displacement errors introduced by the monitoring device as the soft soil foundation subsides. The entire system requires only a standard monitoring camera, a linear laser, and mechanical installation components, resulting in significant cost control, far lower than fiber optic grating monitoring solutions. In actual soft soil site testing, it achieved a low-investment, high-precision monitoring objective.

[0021] 2. Supports continuous, real-time, and unmanned settlement data acquisition and recording, improving monitoring efficiency.

[0022] Compared to traditional manual leveling instruments or total stations, this invention utilizes a combination of a monitoring camera and a laser transmitter to continuously capture images of the monitoring marker scale, automatically uploading settlement data to a monitoring terminal or cloud platform. Operators can remotely view settlement values ​​and change curves at any given time without needing to be physically present. This significantly reduces manpower requirements and allows for immediate response when settlement exceeds limits, providing timely early warnings for project safety.

[0023] 3. It has a simple structure and strong adaptability. The monitoring position and angle can be flexibly adjusted, making it suitable for different pile foundation sizes and site conditions.

[0024] By connecting the gears, racks, and motor drive structure in the assembly, this invention allows the height of the monitoring sign to be moved vertically along the pile foundation, and its orientation to be adjusted by horizontal rotation around the pile foundation, adapting to complex sites with different pile diameters and limited installation space. Simultaneously, the monitoring sign achieves angular deflection via a connecting shaft and a lever structure, facilitating rapid on-site calibration of the laser illumination point. This significantly reduces installation and debugging time compared to traditional static levels, substantially improving construction efficiency.

[0025] 4. The benchmark is stable and has strong anti-interference ability, avoiding false measurement errors caused by ground subsidence.

[0026] Unlike methods that directly fix the monitoring device to the ground near the pile foundation, this invention installs the laser transmitter and monitoring camera on a hardened surface (or stable structure) far away from the pile foundation, where settlement is negligible. Even if the entire ground subsides in the monitored area, the monitoring benchmark remains absolutely stable, ensuring the authenticity and reliability of the measurement data. This is especially suitable for sites with significant post-construction settlement, such as highly compressible soft soil and land reclamation sites.

[0027] In summary, this invention has made significant progress in terms of low cost, high precision, real-time performance, and anti-interference capabilities. It effectively solves the technical problems of "precision and cost cannot be achieved simultaneously", "benchmark sinking with the stratum", and "difficulty in recording continuous settlement data in real time" in the prior art, and has good promotional value and application prospects. Attached Figure Description

[0028] Figure 1 A schematic diagram of a real-time monitoring system for pile foundation settlement in soft soil;

[0029] Figure 2 This is a schematic diagram of a connecting ring in a real-time monitoring system for pile foundation settlement in soft soil.

[0030] Figure 3 A cross-sectional view of a connecting ring in a real-time settlement monitoring system for pile foundations in soft soil;

[0031] Figure 4 A cross-sectional view of an installation plate in a real-time settlement monitoring system for pile foundations in soft soil;

[0032] Figure 5 for Figure 2 Enlarged structural diagram at point A;

[0033] Figure 6 for Figure 3 Enlarged structural diagram at point B;

[0034] Figure 7 for Figure 3 Enlarged structural diagram at point C;

[0035] Figure 8 for Figure 4 Enlarged structural diagram at point D.

[0036] Explanation of key symbols:

[0037] 1. Pile foundation; 2. Mounting ring; 3. Connecting ring; 4. Mounting block; 5. Mounting groove; 6. Loading block; 7. Mounting frame; 8. Monitoring plate; 9. Base; 10. Support column; 11. Top plate; 12. Mounting plate; 13. Surveillance camera; 14. Laser emitter; 15. Rack plate; 16. Drive shaft one; 17. Gear one; 18. Limiting plate; 19. Gear two; 20. Gear; 21. Connecting block; 22. Fixed block one; 23. Fixed block two; 24. Bolt one; 25. Threaded groove one; 26. Receiving groove two; 27. Locking block; 28. Locking groove; 29. ​​Connecting shaft; 30. Paddle; 31. Bolt two; 32. Threaded groove two; 33. Sliding groove; 34. Sliding block; 35. Transmission block; 36. Threaded sleeve; 37. Lead screw. Detailed Implementation

[0038] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0039] Example 1:

[0040] Combination Figure 1This embodiment of a real-time monitoring system for pile foundation settlement in soft soil includes an installation ring 2 movably fitted outside the pile foundation 1, a connecting ring 3 movably fitted outside the installation ring 2, and both the installation ring 2 and the connecting ring 3 are composed of two half-rings fixedly connected. The installation ring 2 is provided with a connecting component for connecting the connecting ring 3. An installation block 4 is fixed to the top side of the connecting ring 3. An installation groove 5 is opened at the end of the installation block 4 away from the connecting ring 3. A loading block 6 is slidably connected inside the installation groove 5. An installation frame 7 is fixed to the top of the loading block 6. A monitoring plate 8 is fixed inside the installation frame 7. A base 9 is provided on the outside of the pile foundation 1. The base 9 is fixed on the hardened ground away from the pile foundation 1. A support column 10 is fixed to the top side of the base 9. A top plate 11 is fixed to the end of the support column 10 away from the base 9. A monitoring camera 13 is provided between the base 9 and the top plate 11. A laser emitter 14 is provided on one side of the monitoring camera 13. The monitoring plate 8 is provided with scale on the outside. The output ends of the monitoring camera 13 and the laser emitter 14 correspond to the monitoring plate 8.

[0041] The implementation principle of the real-time monitoring system for pile foundation settlement in soft soil in this embodiment of the application is as follows: by operating the laser transmitter 14, the laser point can be irradiated on the scale of the monitoring plate 8. by operating the monitoring camera 13, the laser point on the monitoring plate 8 can be monitored. When the pile foundation 1 settles, the monitoring plate 8 will move with the displacement of the pile foundation 1, and the laser point of the laser transmitter 14 will shift on the scale of the monitoring plate 8. At this time, the value of the displacement of the pile foundation 1 can be recorded by the monitoring camera 13.

[0042] Example 2:

[0043] Combination Figure 2 , Figure 3 , Figure 6 and Figure 7This embodiment, based on Embodiment 1, further improves upon the following: the connecting assembly includes an annular groove formed on the outer side of the mounting ring 2. Multiple connecting blocks 21 fixed to the inner wall of the connecting ring 3 are slidably connected inside the annular groove. Rack plates 15 are provided on both sides inside the mounting ring 2. A drive shaft 16 is provided on one side of the rack plate 15. A gear 17 that meshes with the adjacent rack plate 15 is fixedly sleeved on the outer wall of the drive shaft 16. Multiple teeth 20 located below the mounting ring 2 are fixed to the inner wall of the connecting ring 3. A motor 1, a forward and reverse stepper motor, is fixed to the inner wall at the bottom of the mounting ring 2. The output of the motor 1... The end drive is connected to a second drive shaft. A gear 19, meshing with the gear 20, is fixedly sleeved on the outer wall of the second drive shaft. Fixed blocks 22 are fixed at both ends of the rack plate 15. A receiving groove is formed at the end of the fixed block 22 away from the rack plate 15. A second fixed block 23 is slidably inserted into the receiving groove. A bolt 24 is threadedly connected to the second fixed block 23 outside the receiving groove. A threaded groove 25 corresponding to the bolt 24 is formed on the pile foundation 1. The bolt 24 is threadedly connected to the adjacent threaded groove 25. A receiving groove 26 is formed at the end of the second fixed block 23 inside the receiving groove. The internal sliding connection of 6 includes a slider. A locking block 27, fixed to the slider, slides through the slot of the second receiving groove 26. The first fixing block 22 has multiple slots 28 corresponding to the locking blocks 27. The locking blocks 27 slide within adjacent slots 28. Rotation of the drive shaft 16 drives the gear 17 to rotate. Through the interaction between the gear 17 and the rack plate 15, the gear 17 drives the mounting ring 2 to move vertically, drives the connecting ring 3 to move vertically, and drives the monitoring plate 8 to move vertically. The height of the monitoring plate 8 can be adjusted accordingly. The operation of the motor 1 can drive the drive shaft 26 to rotate. The rotating shaft 2 drives the rotating gear 2 19. Through the cooperation of the gear 2 19 and the meshing tooth 20, the meshing tooth 20 and the connecting ring 3 are driven to rotate, causing the monitoring plate 8 to rotate around the pile foundation 1. At this time, the corresponding position of the monitoring plate 8 can be adjusted. Pressing the locking block 27 causes the locking block 27 to move. When the locking block 27 is disengaged from the slot 28, the fixing block 23 can be pulled, causing the fixing block 23 to move. At this time, the corresponding positions of the fixing block 23 and the bolt 1 24 can be adjusted, so that the user can use the bolt 1 24 to fix the rack plate 15 to the outside of the pile foundation 1.

[0044] One end of the drive shaft 16 is connected to a motor 2, which is a forward and reverse stepper motor. A fixing plate 1 is fixed on the inner wall of the mounting ring 2 on the outside of the motor 2. The other end of the drive shaft 16 is rotatably connected to the fixing plate 2 fixed on the inner wall of the mounting ring 2. The operation of the motor 2 can drive the drive shaft 16 to rotate.

[0045] The gear 17 is provided with limiting plates 18 on both sides. The limiting plates 18 are fixed on the adjacent rack plate 15. The limiting plates 18 can limit the gear 17 on the rack plate 15, improve the stability of the gear 17, and prevent the gear 17 from deviating during the displacement process.

[0046] Example 3:

[0047] Combination Figure 5 This embodiment is further improved on the basis of embodiment 1 in that: the loading block 6 located inside the mounting groove 5 has a mounting hole, and a connecting shaft 29 is fixedly inserted inside the mounting hole. One end of the connecting shaft 29 is rotatably connected to the inner wall of one end of the mounting groove 5, and the other end of the connecting shaft 29 extends to the outside of the mounting block 4 and is fixed with a lever 30. A bolt 31 is threadedly connected to the lever 30. Multiple threaded grooves 32 are opened on the end of the mounting block 4 near the lever 30. The bolt 31 is threadedly connected to the inside of the adjacent threaded grooves 32. Rotating the bolt 31 causes the bolt 31 to move. When the bolt 31 is disengaged from the threaded groove 32, the lever 30 can be rotated, causing the lever 30 and the connecting shaft 29 to rotate, causing the loading block 6, the mounting frame 7 and the monitoring plate 8 to deflect. At this time, the corresponding angle of the monitoring plate 8 can be adjusted, so that the laser emitter 14 can irradiate the laser point onto the scale of the monitoring plate 8.

[0048] Multiple push springs are fixed on the side of the slider away from the locking block 27. The end of the push spring away from the slider is fixed on the inner wall of the receiving groove 26. By pushing the elasticity of the spring, the displaced slider and locking block 27 can be pushed to reset displacement.

[0049] Example 4:

[0050] Combination Figure 4 and Figure 8 This embodiment is further improved on the basis of embodiment 1 in that: a mounting plate 12 is fixed to the tail end of the monitoring camera 13, and the laser emitter 14 is fixed on the mounting plate 12. A sliding groove 33 is opened at one end of the mounting plate 12 near the top plate 11. A sliding block 34 fixed to the bottom side of the top plate 11 slides through the sliding groove 33. A transmission block 35 is fixed on the side of the mounting plate 12 away from the monitoring camera 13. A screw sleeve 36 is embedded in the transmission block 35. A lead screw 37 is threaded through the internal thread of the screw sleeve 36. By rotating the lead screw 37, the screw sleeve 36 and the transmission block 35 are driven to move vertically through the cooperation of the lead screw 37 and the screw sleeve 36, thereby driving the monitoring camera 13 and the laser emitter 14 to move vertically. At this time, the corresponding positions of the monitoring camera 13 and the laser emitter 14 can be adjusted.

[0051] One end of the lead screw 37 is rotatably connected to the bottom side of the top plate 11, and the other end of the lead screw 37 is fixed with a handle, which allows the user to easily rotate the lead screw 37.

[0052] The card block 27 is a rectangular block, the card slot 28 is a rectangular slot, and the depth of the receiving slot 26 is greater than the length of the card block 27. The card block 27 can be effectively stored through the receiving slot 26, which is deeper than the length of the card block 27.

[0053] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A real-time settlement monitoring system for pile foundations in soft soil, comprising an installation ring movably fitted onto the outside of the pile foundation, characterized in that, A connecting ring is movably fitted onto the outside of the mounting ring. A connecting component for connecting the mounting ring is provided on the mounting ring. A mounting block is fixed to the top side of the connecting ring. A mounting groove is opened at the end of the mounting block away from the connecting ring. A loading block is slidably connected inside the mounting groove. A mounting frame is fixed to the top of the loading block. A monitoring plate is fixed inside the mounting frame. A base is provided on the outside of the pile foundation. A support column is fixed to the top side of the base. A top plate is fixed to the end of the support column away from the base. A monitoring camera is provided between the base and the top plate. A laser emitter is provided on one side of the monitoring camera.

2. The real-time monitoring system for pile foundation settlement in soft soil as described in claim 1, characterized in that, The monitoring sign has scales on its outer side, and the output terminals of the surveillance camera and laser emitter correspond to the monitoring sign.

3. The real-time settlement monitoring system for pile foundations in soft soil as described in claim 1, characterized in that, The connecting assembly includes an annular groove formed on the outer side of the mounting ring. Multiple connecting blocks fixed to the inner wall of the connecting ring are slidably connected inside the annular groove. Rack plates are provided on both sides inside the mounting ring. A drive shaft is provided on one side of each rack plate. A gear is fixedly sleeved on the outer wall of the drive shaft to mesh with an adjacent rack plate. Multiple teeth located below the mounting ring are fixed to the inner wall of the connecting ring. A motor is fixed to the inner wall at the bottom of the mounting ring. A drive shaft is driven to the output end of the motor. A gear is fixedly sleeved on the outer wall of the drive shaft to mesh with the teeth. Fixed blocks are fixed at both ends of the rack plates. The first connecting block has a receiving groove at one end away from the rack plate. The second connecting block is slidably inserted inside the receiving groove. The second connecting block, located outside the receiving groove, is threadedly connected to a bolt. The pile foundation has a threaded groove corresponding to the bolt. The bolt is threadedly connected inside the adjacent threaded groove. The end of the second connecting block, located inside the receiving groove, has a receiving groove. A slider is slidably connected inside the receiving groove. A locking block fixed on the slider slides through the opening of the receiving groove. The first connecting block has multiple locking slots corresponding to the locking blocks. The locking blocks slide inside adjacent locking slots.

4. The real-time settlement monitoring system for pile foundations in soft soil as described in claim 3, characterized in that, One end of the drive shaft is connected to the motor, and the outer side of the motor is fixed with a fixing plate fixed to the inner wall of the mounting ring. The other end of the drive shaft is rotatably connected to the fixing plate fixed to the inner wall of the mounting ring.

5. The real-time settlement monitoring system for pile foundations in soft soil as described in claim 3, characterized in that, The gear one has limiting plates on both sides, and the limiting plates are fixed to the adjacent rack plates.

6. The real-time settlement monitoring system for pile foundations in soft soil as described in claim 1, characterized in that, The loading block located inside the mounting slot has a mounting hole. A connecting shaft is fixedly inserted inside the mounting hole. One end of the connecting shaft is rotatably connected to the inner wall of one end of the mounting slot. The other end of the connecting shaft extends to the outside of the mounting block and is fixed with a lever. A bolt is threadedly connected to the lever. The end of the mounting block near the lever has multiple threaded grooves. The bolts are threadedly connected to the inside of adjacent threaded grooves.

7. The real-time settlement monitoring system for pile foundations in soft soil as described in claim 3, characterized in that, Multiple push springs are fixed on the side of the slider away from the block, and the end of the push spring away from the slider is fixed on the inner wall of the receiving groove.

8. The real-time settlement monitoring system for pile foundations in soft soil as described in claim 1, characterized in that, The rear end of the surveillance camera is fixed with a mounting plate, the laser emitter is fixed on the mounting plate, a sliding groove is opened at one end of the mounting plate near the top plate, a sliding block fixed to the bottom side of the top plate slides through the sliding groove, and a transmission block is fixed on the side of the mounting plate away from the surveillance camera. The transmission block is fitted with a screw sleeve, and a lead screw passes through the internal thread of the screw sleeve.

9. A real-time settlement monitoring system for pile foundations in soft soil as described in claim 8, characterized in that, One end of the lead screw is rotatably connected to the bottom side of the top plate, and the other end of the lead screw is fixed with a handle.

10. A real-time monitoring system for pile foundation settlement in soft soil as described in claim 3, characterized in that, The card block is a rectangular block, the card slot is a rectangular slot, and the depth of the second receiving slot is greater than the length of the card block.

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