Bridge pier settlement monitoring device and use method thereof

Abstract

The invention relates to the technical field of bridge pier settlement monitoring, and discloses a bridge pier settlement monitoring device which comprises a hoop arranged on the outer side wall of a bridge pier in a sleeving mode, a first annular plate and a second annular plate are arranged on the hoop, and the outer side wall of the first annular plate and the outer side wall of the second annular plate are a vertical face and an inclined face respectively; the first distance measuring module and the second distance measuring module revolve around the hoop, the first distance measuring module is arranged opposite to the outer side wall of the first ring plate and used for measuring the horizontal distance between the first ring plate and the second ring plate, and the second distance measuring module is arranged opposite to the outer side wall of the second ring plate and used for measuring the horizontal distance between the second ring plate and the second ring plate; and the control module is electrically connected with the first distance measuring module and the second distance measuring module, and is used for reading measurement information of the first distance measuring module and the second distance measuring module and calculating inclination and vertical settlement information of the pier. In addition, the invention further discloses a using method of the bridge pier settlement monitoring device. The settlement condition of the bridge pier in all directions can be monitored in all directions.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge pier settlement monitoring technology, and in particular to a bridge pier settlement monitoring device and a use method thereof. Background Art

[0002] As a key supporting structure for bridges, the stability of bridge piers is directly related to the safe operation of the entire bridge. With the rapid development of my country's transportation infrastructure and the increasing number of bridges, the need for bridge safety monitoring has become increasingly prominent. Real-time monitoring of pier settlement can promptly identify potential safety hazards, providing a scientific basis for bridge maintenance and reinforcement, thereby ensuring the long-term stability and reliability of bridges.

[0003] In the prior art, the patent document with the announcement number CN118565435B discloses a device and method for observing the settlement of a bridge pier. The technical solution of this patent mainly includes components such as a large scale plate, a connecting plate, a limit frame, a mounting tube, a T-shaped plug, a load-bearing column, and a plurality of small scale plates. The large scale plate is arranged vertically, and a connecting plate is provided on its right side. Two limit frames are symmetrically installed on the left end of the connecting plate, and the two limit frames are slidably connected to the outer end of the large scale plate. A mounting piece is provided on the right end of the connecting plate for installation on the bridge pier. A mounting tube is provided at the upper end of the large scale plate, and the upper end of the mounting tube is threadedly connected to the T-shaped plug. A connecting rope is installed in the middle of the lower end of the T-shaped plug, and the lower end of the connecting rope is connected to the load-bearing column. A plurality of movable connectors are equidistantly provided at the outer end of the load-bearing column, and a small scale plate is provided toward the outer end of each movable connector. The small scale plate passes through the through groove on the outer end face of the mounting tube. The device uses the position of the indicator plate on the large scale plate to measure the linear movement of the pier. It also uses the extended distance of the small scale plate to measure the pier's tilt angle and direction, thereby calculating the pier's settlement. However, the patent's large scale plate is located only on one side of the pier. This means that when the pier tilts and settles toward the large scale plate, the change in the indicator plate on the large scale plate can relatively accurately reflect the settlement. However, in reality, piers can tilt and settle in any direction. When the pier tilts in other directions, the change in the large scale plate's indication will deviate from the actual settlement value, resulting in the monitoring data not accurately reflecting the pier's actual settlement. This limitation makes it difficult for the device to comprehensively and accurately monitor pier settlement in practice. This is especially true for piers with multi-directional settlement risks, where monitoring accuracy is significantly reduced, significantly limiting the device's applicability and reliability.

[0004] How to overcome this limitation and improve the accuracy of pier settlement monitoring has become a technical problem that technicians in this field urgently need to solve. Summary of the Invention

[0005] The present invention aims to provide a pier settlement monitoring device and a method of using the same to overcome the above-mentioned shortcomings.

[0006] In order to achieve the above-mentioned object, a first aspect of the present invention provides a pier settlement monitoring device, comprising:

[0007] A clamp sleeved on the outer side wall of the pier, wherein the clamp is provided with a first ring plate and a second ring plate, wherein the outer side wall of the first ring plate and the outer side wall of the second ring plate are respectively a vertical surface and an inclined surface;

[0008] a first distance measuring module and a second distance measuring module revolving around the clamp, wherein the first distance measuring module is disposed opposite to the outer side wall of the first ring plate and is used to measure the horizontal distance therebetween, and the second distance measuring module is disposed opposite to the outer side wall of the second ring plate and is used to measure the horizontal distance therebetween; and

[0009] A control module electrically connected to the first distance measuring module and the second distance measuring module respectively, wherein the control module is used to read the measurement information of the first distance measuring module and the second distance measuring module and calculate the inclination and vertical settlement information of the pier.

[0010] Furthermore, it also includes:

[0011] A slide rail is arranged horizontally and sleeved on the circumference of the pier, wherein the distance between the slide rail and the outer side wall of the pier is equal at all places, and the first distance measuring module and the second distance measuring module are respectively slidably connected to the slide rail; and

[0012] A power module is used to drive the first and second distance measuring modules to move along the slide rail. The power module is electrically connected to a control module, and the control module is used to open and close the power module.

[0013] Furthermore, the bridge pier is cylindrical, and the slide rail is annular;

[0014] The power module includes:

[0015] The outer gear ring is coaxially connected to the slide rail, and a bracket is fixedly connected to the outer gear ring. The first and second ranging modules are installed on the bracket.

[0016] a driving gear meshing with the outer gear ring, and

[0017] A drive motor is electrically connected to the control module, the control module is used to start and close the drive motor, and the output shaft of the drive motor is spline-connected to the driving gear.

[0018] Furthermore, it also includes:

[0019] A sealing cover is provided on the peripheral sides of the control module, the slide rail, the outer gear ring, the bracket, the first distance measuring module, the second distance measuring module, the driving gear and the drive motor. The sealing cover is annular, and the slide rail and the drive motor are respectively fixedly connected to the sealing cover;

[0020] The sealing cover is hinged to one end of a plurality of supporting legs, and the plurality of supporting legs are distributed at intervals along the circumference of the pier. The supporting legs are telescopic structures and are arranged obliquely, and the other ends thereof are supported on the ground.

[0021] Furthermore, the top plate of the sealing cover is made of a transparent material and is provided with angle scale lines. The top end of the bracket is provided with a pointer, and the pointer is arranged opposite to the angle scale lines.

[0022] Furthermore, a support plate is hingedly connected to the other end of the support leg, and the support plate is fixedly connected to the ground by anchor nails provided through the support leg.

[0023] Furthermore, the first ranging module and the second ranging module are laser ranging sensors, ultrasonic ranging sensors or infrared ranging sensors, and the driving motor is a stepping motor or a servo motor.

[0024] Furthermore, it also includes a wireless communication module and a power supply module arranged in the sealing cover, and the wireless communication module and the power supply module are electrically connected to the control module respectively. The control module calculates the inclination and vertical settlement information of the pier and sends it to the background server via the communication module.

[0025] Compared with the prior art, the bridge pier settlement monitoring device and its use method of the present invention have the following advantages:

[0026] By providing a clamp, a first ring plate, a second ring plate 4, and first and second ranging modules that orbit around the clamp, this present invention overcomes the limitation of existing monitoring devices that only monitor pier settlement in a single direction. As the first and second ranging modules orbit around the clamp, they can comprehensively monitor pier settlement in all directions, accurately capturing vertical, inclined, and complex multi-directional settlement. This avoids the problem of excessive deviation in monitoring data and a lack of accurate reflection of settlement due to pier tilt in other directions, effectively improving the comprehensiveness and accuracy of monitoring.

[0027] A second aspect of the present invention provides a method for using a pier settlement monitoring device, comprising the following steps:

[0028] In the first step, the first and second ranging modules are rotated around the first and second ring plates, respectively. The initial distance between the first ranging module and the outer wall of the first ring plate is defined as L1, and the real-time measured distance between the first ranging module and the outer wall of the first ring plate is defined as L2. The initial distance between the second ranging module and the outer wall of the second ring plate is defined as L3, and the real-time measured distance between the second ranging module and the outer wall of the second ring plate is defined as L4. When L1 = L2 and L3 ≠ L4, the second step is performed. When L1 ≠ L2 and L3 ≠ L4, the third step is performed.

[0029] In the second step, when L1=L2 and L3≠L4, it means that the bridge pier only experiences vertical settlement. The minimum value of L4 is measured by revolving the first and second distance measuring modules around the clamp, which is recorded as L4. min , then the settlement height is h=|L3-L4 min |tanα,α is the angle between the inclined surface and the horizontal direction;

[0030] Step 3: When L1≠L2 and L3≠L4, it indicates that the bridge pier is simultaneously vertically subsiding and tilting. By revolving the first and second distance measuring modules around the clamp, the minimum value of L2 is measured and recorded as L2. min , determine the minimum value of L4, record it as L4 min , the settlement height is recorded as h, the pier inclination angle is recorded as β, and the angle between the inclined surface and the horizontal direction is recorded as α, then we can get tanβ=h / |L1-L2 min |, tan=h / |L3-L4 min |, from this the settlement height and the pier inclination angle are calculated.

[0031] Furthermore, the third step also includes: recording the direction angle γ corresponding to the position of the first distance measuring module and the second distance measuring module when they rotate, when L3=L4 min When the first and second ranging modules rotate counterclockwise, the tilt angle γ' of the bridge pier is γ+γ'; when the first and second ranging modules rotate counterclockwise, the tilt angle of the bridge pier is γ-γ'.

[0032] The advantages of the bridge pier settlement monitoring device and the method of use thereof are the same as those of the above-mentioned bridge pier settlement monitoring device and the method of use relative to the prior art, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 This is a schematic diagram of the overall structure of the bridge pier settlement monitoring device and its use method of the present invention;

[0035] Figure 2 is a cross-sectional view of the bridge pier settlement monitoring device and its use method of the present invention;

[0036] Figure 3 It is a block diagram of the connection between the various modules of the bridge of the present invention;

[0037] Figure 4 This is an effect diagram of the clamp, the first ring plate, the second ring plate, the bracket, the first ranging module, and the second ranging module of the present invention in the initial state;

[0038] Figure 5 This is an effect diagram of the clamp, the first ring plate, the second ring plate, the bracket, the first distance measuring module, and the second distance measuring module of the present invention when the bridge pier undergoes vertical settlement;

[0039] Figure 6 This is an effect diagram of the clamp, first ring plate, second ring plate, bracket, first distance measuring module and second distance measuring module of the present invention when the bridge pier is vertically settled and tilted simultaneously.

[0040] Figure numerals: 1. Bridge pier; 2. Clamp; 3. First ring plate; 4. Second ring plate; 5. Control module; 6. Slide rail; 7. Outer ring gear; 8. Bracket; 9. First distance measuring module; 10. Second distance measuring module; 11. Driving gear; 12. Driving motor; 13. Sealing cover; 14. Support leg; 15. Angle scale line; 16. Pointer; 17. Support plate; 18. Anchor nail; 19. Wireless communication module; 20. Power supply module; 21. Backend server. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] Reference Figure 1-3 In a first aspect, the present invention provides a pier settlement monitoring device, which is mainly composed of a clamp 2, a ring plate assembly, a distance measurement module and a control module 5.

[0044] The clamp 2 of the bridge pier settlement monitoring device of the present invention is tightly fitted onto the outer wall of the cylindrical bridge pier 1, with the clamp 2 positioned above the ground. Clamp 2 is made of a high-strength aluminum alloy, combining excellent corrosion resistance and mechanical strength, effectively resisting environmental erosion. Clamp 2 is secured with two centrally symmetrically distributed bolts and nuts, ensuring a close fit with the surface of the bridge pier 1. A first ring plate 3 and a second ring plate 4 are integrally formed with the clamp 2, with the first ring plate 3 and the second ring plate 4 positioned above and below the clamp 2, respectively. The outer wall of the first ring plate 3 is a vertical surface, parallel to the outer wall of the bridge pier 1; the outer wall of the second ring plate 4 is an inclined surface. In a specific embodiment of the present invention, to facilitate subsequent calculations, the inclined surface is tilted from top to bottom toward the bridge pier 1. Alternatively, the inclined surface can be tilted from top to bottom away from the bridge pier 1, but these are not listed here.

[0045] The distance measuring module includes a first distance measuring module 9 and a second distance measuring module 10, both of which can revolve around the clamp 2. The first distance measuring module 9 is positioned opposite the outer wall of the first ring plate 3 to measure the horizontal distance between them; the second distance measuring module 10 is positioned opposite the outer wall of the second ring plate 4 to measure the horizontal distance between them.

[0046] The control module 5 utilizes a PLC device and is electrically connected to the first and second distance measurement modules 9, 10. The control module 5 reads the distance information measured by the first and second distance measurement modules 9, 10 and compares it with the initial distance information to determine whether the pier 1 has experienced vertical settlement or tilt. If vertical settlement or tilt occurs, the control module 5 calculates the tilt angle and amount of vertical settlement.

[0047] Furthermore, the present invention is also provided with a slide rail 6 and a power module. The slide rail 6 is arranged in the horizontal direction, and its horizontal arrangement can be ensured by means of a level meter or other device during installation. The slide rail 6 is sleeved on the side of the pier 1, and its shape matches the outer wall of the pier 1, and the distance between the slide rail 6 and the outer wall of the pier 1 is kept consistent. The first distance measuring module 9 and the second distance measuring module 10 are slidably connected to the slide rail 6. During the sliding process along the slide rail 6, the distance between them and the outer wall of the pier 1 is synchronously measured and fed back to the control module 5. The power module is used to drive the first distance measuring module 9 and the second distance measuring module 10 to move along the slide rail 6, and is electrically connected to the control module 5, and its opening and closing is controlled by the control module 5. When the control module 5 starts the power module, it can drive the two distance measuring modules to slide along the slide rail 6; when the control module 5 turns off the power module, the two distance measuring modules remain stationary relative to the slide rail 6.

[0048] Specifically, the bridge pier 1 of the present invention is cylindrical, and the slide rail 6 is annular. The power module primarily comprises an outer ring gear 7, a driving gear 11, and a drive motor 12. The outer ring gear 7 is coaxially rotatably connected to the slide rail 6. A sliding protrusion is provided on the underside of the outer ring gear 7. The slide rail 6 is located below the outer ring gear 7 and has a sliding groove on its upper surface. The sliding protrusion and the sliding groove are coaxially rotatably connected, enabling relative rotation between the outer ring gear 7 and the slide rail 6. The first and second distance measuring modules 9 and 10 are fixed to the inner sidewall of the outer ring gear 7 via a bracket 8. The output shaft of the drive motor 12 is splined to the driving gear 11. The drive motor 12 is preferably a stepper motor or servo motor and is electrically connected to the control module 5, which controls the opening and closing of the drive motor 12 and its rotation angle. Because the driving gear 11 meshes with the outer ring gear 7, the control module 5 can precisely control the rotation of the outer ring gear 7 by controlling the rotation angle of the drive motor 12, thereby achieving precise control of the rotation angle of the first and second distance measuring modules 9 and 10.

[0049] To enhance the dust and corrosion resistance of the control module 5, slide rail 6, outer ring gear 7, and bracket 8, the present invention provides a sealing cover 13. The sealing cover 13 is annular and surrounds the control module 5, slide rail 6, outer ring gear 7, bracket 8, first and second distance measurement modules 9 and 10, driving gear 11, and drive motor 12. The slide rail 6 and drive motor 12 are each fixedly connected to the sealing cover 13. Activating the drive motor 12 drives the outer ring gear 7 to rotate within the sealing cover 13. Furthermore, the sealing cover 13 is hingedly connected to a plurality of support legs 14, one end of which is connected to the sealing cover 13 and the other end is supported on the ground. Preferably, three support legs 14 are provided. The support legs 14 are telescopic and tilted, forming a circumferential array along the axis of the bridge pier 1. In other embodiments of the present invention, if the bridge pier 1 has a shape other than cylindrical, the support legs 14 can be evenly distributed around the pier 1 to similarly support the sealing cover 13.

[0050] In order to ensure the stability of the sealing cover 13 and prevent displacement or settlement due to external weather factors such as wind and rain, the other end of the support leg 14 is hinged with a support plate 17, which is fixed to the ground by an anchor nail 18.

[0051] It should be noted that the slide rail 6, outer gear ring 7 and sealing cover 13 in the present invention are all circular ring structures, which can be directly installed on the circumference of the pier 1 after the completion of the pier 1, or they can be set as a multi-section structure to achieve subsequent installation after the completion of the bridge.

[0052] Optionally, the top plate of the sealing cover 13 of the present invention is made of a transparent material, and an angle scale line 15 is provided on the sealing cover 13 to represent various direction angles. For example, the 0 degree scale line is set to face north. This process can be determined by means of a compass or other device to determine the north direction. After aligning the 0 degree scale line with the north, the sealing cover 13 is installed. Then the 90 degree scale line is east, the 180 degree scale line is south, the 270 degree scale line is west, and so on. The top of the bracket 8 is provided with a pointer 16, which is arranged relative to the angle scale line 15. The position of the angle scale line 15 pointed by the pointer 16 can be used to know the rotation angle of the first distance measuring module 9 and the second distance measuring module 10. Initially, the pointer 16 can be aligned with the zero degree scale line to achieve the calibration of the initial angles of the two distance measuring modules; during the measurement process, the rotation angles of the two distance measuring modules can be calculated by the rotation angle of the drive motor 12 and the transmission ratio of the driving gear 11 and the outer gear ring 7, or can be directly read by observing the relative position of the pointer 16 and the scale line.

[0053] In the present invention, the first and second ranging modules 9, 10 can be configured as laser ranging sensors, ultrasonic ranging sensors, or infrared ranging sensors. The sealing cover 13 located between the first ranging module 9 and the first ring plate 3, and between the second ranging module 10 and the second ring plate 4, should be constructed from a material that minimizes interference with the ranging instrument. For example, for infrared ranging sensors, the sealing cover 13 in this area is preferably made of quartz glass, silica glass, infrared crystal, or polypropylene to minimize infrared reflection. Other materials are not listed in detail here.

[0054] In addition, the sealing cover 13 is provided with a wireless communication module 19 and a power supply module 20, both of which are electrically connected to the control module 5. The inclination and vertical settlement information of the pier 1 calculated by the control module 5 can be sent to the backend server 21 via the wireless communication module 19.

[0055] It is important to emphasize that during installation, positioning marks should be placed on the outer surface of the pier 1, ensuring that one edge of the clamp 2, first ring plate 3, and second ring plate 4 is aligned with the positioning mark to prevent displacement of the clamp 2 and prevent proper monitoring. Regular inspections should also be conducted. Furthermore, personnel should regularly remeasure the elevation of the sealing cover 13 to ensure it remains consistent with the initial elevation.

[0056] The beneficial effects of the present invention are as follows:

[0057] By providing a clamp 2, a ring plate assembly, and a ranging module capable of revolving around the clamp 2, the present invention overcomes the limitation of the existing monitoring device that can only monitor the settlement of the pier 1 in a single direction. The clamp 2 is tightly fitted onto the outer wall of the pier 1, with the first ring plate 3 and the second ring plate 4 located above and below the clamp 2, respectively. The first ranging module 9 is opposite the vertical surface of the first ring plate 3, and the second ranging module 10 is opposite the inclined surface of the second ring plate 4. When the ranging module revolves around the clamp 2, it can fully monitor the settlement of the pier 1 in all directions, accurately capturing vertical settlement, inclined settlement, and complex settlement in multiple directions. This avoids the problem of excessive deviation in monitoring data and failure to truly reflect settlement conditions due to the tilt of the pier 1 in other directions, effectively improving the comprehensiveness and accuracy of monitoring.

[0058] Control module 5 utilizes a PLC device and is electrically connected to first and second distance measurement modules 9 and 10. It can read the distance information measured by the distance measurement modules in real time and compare it with the initial distance information to quickly determine whether pier 1 has settled or tilted. When pier 1 settles or tilts, control module 5 calculates the settlement height and the tilt angle of pier 1 according to the corresponding formula, enabling quantitative analysis of the settlement. Furthermore, by recording the azimuth and rotation angle corresponding to the position of the distance measurement modules during rotation, the tilt angle of pier 1 can also be determined, providing more detailed and accurate data support for subsequent analysis of the cause of settlement and the development of maintenance plans. Compared to existing technologies, this provides more intelligent data processing and more accurate calculation results, facilitating timely and accurate understanding of the settlement status of pier 1.

[0059] The wireless communication module 19 and power module 20 housed within the sealed enclosure 13 enable the settlement information of pier 1, calculated by the control module 5, to be transmitted in real time to the backend server 21 via the wireless communication module 19. This allows staff to remotely monitor the settlement of pier 1 from the control center without having to be physically present, obtaining timely monitoring data and significantly improving work efficiency. Furthermore, the power module 20 provides stable power to the ranging module and power module, ensuring long-term, continuous, and stable operation of the device. This facilitates maintenance and management, reduces maintenance costs and workload, and is an advantage not found in existing technologies.

[0060] Reference Figure 4-6 The second aspect of the present invention provides a method for using the above-mentioned pier settlement monitoring device, and the specific steps are as follows:

[0061] The following steps are involved:

[0062] In the first step, the first ranging module 9 and the second ranging module 10 are respectively rotated around the first ring plate 3 and the second ring plate 4. The initial distance between the first ranging module 9 and the outer wall of the first ring plate 3 is defined as L1, and the real-time measured distance between the first ranging module 9 and the outer wall of the first ring plate 3 is defined as L2. The initial distance between the second ranging module 10 and the outer wall of the second ring plate 4 is defined as L3, and the real-time measured distance between the second ranging module 10 and the outer wall of the second ring plate 4 is defined as L4. When L1 = L2 and L3 ≠ L4, the process proceeds to the second step. When L1 ≠ L2 and L3 ≠ L4, the process proceeds to the third step.

[0063] In the second step, when L1=L2 and L3≠L4, it means that the pier 1 only experiences vertical settlement. By rotating the first distance measuring module 9 and the second distance measuring module 10, the minimum value of L4 is measured and recorded as L4. min , then the settlement height is h=|L3-L4 min |tanα,α is the angle between the inclined surface and the horizontal direction;

[0064] Step 3: When L1≠L2 and L3≠L4, it indicates that the pier 1 is simultaneously vertically subsiding and tilting. By rotating the first distance measuring module 9 and the second distance measuring module 10, the minimum value of L2 is measured and recorded as L2. min , determine the minimum value of L4, record it as L4 min , the settlement height is recorded as h, the inclination angle of pier 1 is recorded as β, and the angle between the inclined surface and the horizontal direction is recorded as α, then we can get tanβ=h / |L1-L2 min |, tan(α-β)=h / |L3-L4 min |, from this the settlement height and the inclination angle of pier 1 are calculated.

[0065] Preferably, the third step further includes: recording the direction angle γ corresponding to the position of the first distance measuring module 9 and the second distance measuring module 10 when they rotate, when L3=L4 min The first and second distance measuring modules 9 and 10 rotate in a counterclockwise direction, and the rotation angle γ' is recorded. Looking down, when the first and second distance measuring modules 9 and 10 rotate counterclockwise, the tilt angle of the bridge pier 1 is γ+γ'. When the first and second distance measuring modules 9 and 10 rotate counterclockwise, the tilt angle of the bridge pier 1 is γ-γ'. The above tilt angle is the scale mark on the angle scale line 15 corresponding to the direction of the bridge's tilt.

[0066] The method of using the bridge pier settlement monitoring device is the same as the advantages of the above-mentioned bridge pier settlement monitoring device over the existing technology, and will not be repeated here.

[0067] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0068] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A pier settlement monitoring device, characterized in that: include: A clamp (2) sleeved on the outer side wall of the pier (1), wherein a first ring plate (3) and a second ring plate (4) are provided on the clamp (2), wherein the outer side wall of the first ring plate (3) and the outer side wall of the second ring plate (4) are respectively a vertical surface and an inclined surface; a first distance measuring module (9) and a second distance measuring module (10) that revolve around the clamp (2), wherein the first distance measuring module (9) and the outer side wall of the first ring plate (3) are arranged relative to each other and are used to measure the horizontal distance between the two, and the second distance measuring module (10) and the outer side wall of the second ring plate (4) are arranged relative to each other and are used to measure the horizontal distance between the two; and A control module (5) electrically connected to the first distance measuring module (9) and the second distance measuring module (10), respectively, wherein the control module (5) is used to read measurement information of the first distance measuring module (9) and the second distance measuring module (10), and calculate the inclination and vertical settlement information of the bridge pier (1).

2. The pier settlement monitoring device according to claim 1, characterized in that: Also includes: A slide rail (6) is arranged in a horizontal direction and sleeved on the circumference of the bridge pier (1), the distance between the slide rail (6) and the outer wall of the bridge pier (1) being equal at all locations, and the first distance measuring module (9) and the second distance measuring module (10) are respectively slidably connected to the slide rail (6); and A power module for driving the first distance measuring module (9) and the second distance measuring module (10) to move along the slide rail (6); the power module is electrically connected to a control module (5); and the control module (5) is used to open and close the power module.

3. The pier settlement monitoring device according to claim 2, characterized in that: The bridge pier (1) is cylindrical, and the slide rail (6) is annular; The power module includes: An outer gear ring (7) is coaxially rotatably connected to the slide rail (6), a bracket (8) is fixedly connected to the outer gear ring (7), and the first distance measuring module (9) and the second distance measuring module (10) are installed on the bracket (8). a driving gear (11) meshing with the outer gear ring (7), and A drive motor (12) is electrically connected to the control module (5), the control module (5) is used to start and close the drive motor (12), and the output shaft of the drive motor (12) is spline-connected to the driving gear (11).

4. The pier settlement monitoring device according to claim 3, characterized in that: Also includes: A sealing cover (13) is provided on the peripheral sides of the control module (5), the slide rail (6), the outer gear ring (7), the bracket (8), the first distance measuring module (9), the second distance measuring module (10), the driving gear (11) and the drive motor (12); the sealing cover (13) is annular, and the slide rail (6) and the drive motor (12) are respectively fixedly connected to the sealing cover (13); The sealing cover (13) is hinged to one end of a plurality of supporting legs (14), and the plurality of supporting legs (14) are distributed at intervals along the circumference of the bridge pier (1). The supporting legs (14) are of a telescopic structure and are tilted, with the other end supported on the ground.

5. The pier settlement monitoring device according to claim 4, characterized in that: The top plate of the sealing cover (13) is made of a transparent material and is provided with an angle scale line (15). The top end of the bracket (8) is provided with a pointer (16), and the pointer (16) is arranged opposite to the angle scale line (15).

6. The pier settlement monitoring device according to claim 4, characterized in that: The other end of the support leg (14) is hinged with a support plate (17), and the support plate (17) is fixedly connected to the ground via an anchoring nail (18) provided through the support plate.

7. The pier settlement monitoring device according to claim 4, characterized in that: The first distance measuring module (9) and the second distance measuring module (10) are laser distance measuring sensors, ultrasonic distance measuring sensors or infrared distance measuring sensors, and the driving motor (12) is a stepping motor or a servo motor.

8. The pier settlement monitoring device according to claim 4, characterized in that: The invention also includes a wireless communication module (19) and a power supply module (20) arranged in the sealing cover (13), wherein the wireless communication module (19) and the power supply module (20) are electrically connected to the control module (5) respectively, and the control module (5) calculates the inclination and vertical settlement information of the bridge pier (1) and sends the information to the background server (21) via the communication module.

9. The method for using the bridge pier settlement monitoring device according to any one of claims 1 to 8, characterized in that: The following steps are involved: In the first step, a first distance measuring module (9) and a second distance measuring module (10) are respectively rotated around a first ring plate (3) and a second ring plate (4), an initial distance between the first distance measuring module (9) and the outer side wall of the first ring plate (3) is defined as L1, a real-time measured distance between the first distance measuring module (9) and the outer side wall of the first ring plate (3) is defined as L2, an initial distance between the second distance measuring module (10) and the outer side wall of the second ring plate (4) is defined as L3, and a real-time measured distance between the second distance measuring module (10) and the outer side wall of the second ring plate (4) is defined as L4; when L1=L2 and L3≠L4, the second step is entered; when L1≠L2 and L3≠L4, the third step is entered; In the second step, when L1=L2 and L3≠L4, it means that the bridge pier (1) only undergoes vertical settlement. The minimum value of L4 is measured by rotating the first distance measuring module (9) and the second distance measuring module (10) around the clamp (2), and is recorded as L4. min , then the settlement height is h=|L3-L4 min |tanα,α is the angle between the inclined surface and the horizontal direction; In the third step, when L1≠L2 and L3≠L4, it indicates that the bridge pier (1) is simultaneously vertically subsided and tilted. The minimum value of L2 is measured by rotating the first distance measuring module (9) and the second distance measuring module (10) around the clamp (2), and recorded as L2. min , determine the minimum value of L4, record it as L4 min , the settlement height is recorded as h, the inclination angle of the pier (1) is recorded as β, and the angle between the inclined surface and the horizontal direction is recorded as α, then we can get tanβ=h / |L1-L2 min |, tan(α-β)=h / |L3-L4 min |, from which the settlement height and the inclination angle of the pier (1) are calculated.

10. The method of use according to claim 9, characterized in that: The third step also includes: recording the direction angle γ corresponding to the position of the first distance measuring module (9) and the second distance measuring module (10) when they rotate, when L3=L4 min When the first distance measuring module (9) and the second distance measuring module (10) rotate, the rotation angle γ' of the first distance measuring module (9) and the second distance measuring module (10) is recorded. In the overhead direction, when the first distance measuring module (9) and the second distance measuring module (10) rotate counterclockwise, the tilt direction angle of the bridge pier (1) is γ+γ'; when the first distance measuring module (9) and the second distance measuring module (10) rotate counterclockwise, the tilt direction angle of the bridge pier (1) is γ-γ'.

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