A roadbed construction settlement monitoring device and system

Abstract

This utility model provides a roadbed construction settlement monitoring device and system, belonging to the technical field of roadbed settlement monitoring. The roadbed construction settlement monitoring device provided by this utility model includes a housing, settlement sensing components, settlement reaction components, and data reading components. The housing has an internal cavity. The settlement sensing component includes a sensing cylinder and a sensing rod, with the lower end of the sensing rod passing through the sensing cylinder and the upper end extending upwards through the upper surface of the housing. The settlement reaction component includes a connecting rod and a reaction rod, with the connecting rod connecting the side wall of the sensing rod and the upper end of the reaction rod. The data reading component reads the position data of the lower end of the reaction rod. Two sets of settlement sensing components are symmetrically arranged at both ends of the cavity. In this roadbed construction settlement monitoring device, the two sets of sensing rods respectively bear the settlement of the roadbed, transmitting it to the reaction rod. By reading the position data of the two sets of reaction rods, the height difference between the two sets of sensing rods is obtained, i.e., the lateral displacement deviation of the roadbed.

Description

Technical Field

[0001] This utility model belongs to the field of road and subgrade settlement monitoring technology, and specifically relates to a roadbed construction settlement monitoring device. Background Technology

[0002] A roadbed is a strip-shaped structure built according to the route location and certain technical requirements, serving as the foundation for the pavement. It is a linear structure constructed of earth or stone, bearing its own weight, the weight of the pavement, and the traffic load transmitted from the pavement. It is an important component of the entire highway structure. High embankment roadbeds generally refer to roadbed projects with large cumulative embankment settlement, high embankment height, and a large embankment area. They are particularly widely used in mountainous and hilly areas and plains. Layered filling and compaction methods should be used during construction, with the thickness of each layer determined by the type of fill material used.

[0003] Roadbed settlement refers to the subsidence of the roadbed surface caused by the compaction of the roadbed soil layer under additional stress. Excessive settlement, especially uneven settlement, can cause the road surface to tilt, crack, and become unusable. It may also have a certain impact on surrounding buildings and underground pipelines. Therefore, it is often necessary to monitor the settlement of the roadbed. This can be done to monitor the stability of the roadbed during construction, and after construction, by analyzing the settlement monitoring data, to ensure that the post-construction settlement meets the design requirements, to promptly identify potential settlement risks, and to avoid safety accidents.

[0004] Common settlement detection methods mainly include vertical displacement observation and horizontal displacement observation. Vertical settlement observation often uses monitoring piles, settlement cups, settlement plates, etc.; horizontal displacement monitoring methods often use edge piles to observe the horizontal displacement of the ground surface and inclinometers to observe the horizontal displacement of soil depth. Traditional monitoring methods are technically mature and simple to operate, but they are also easily affected by external factors, have many human influences, and require a large workload. They can only monitor settlement deformation at a certain point or location, and cannot accurately obtain the internal angular deviation of the roadbed. They lack monitoring of the lateral displacement deviation of the roadbed or only perform simple observations, which affects the construction and operation of the roadbed. Utility Model Content

[0005] The purpose of this invention is to provide a roadbed construction settlement monitoring device and system, which aims to solve the problem that the lateral displacement deviation of the roadbed is not easy to monitor.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a roadbed construction settlement monitoring device, comprising: a box body with an internal receiving cavity;

[0007] The settlement sensing component includes a sensing slide and a sensing rod. The sensing slide is vertically installed inside the box. The lower end of the sensing rod passes through the upper end of the sensing slide and has the freedom to slide up and down. The upper end of the sensing rod extends upward through the upper surface of the box. The upper end of the sensing rod is used to receive external settlement.

[0008] A sedimentation reaction assembly, disposed within the tank, includes a connecting rod and a reaction rod. One end of the connecting rod is disposed on the side wall of the sensing rod located inside the tank, and above the sensing slide cylinder. The reaction rod is vertically disposed on the lower end face of the other end of the connecting rod.

[0009] A data reading component is used to read the position data of the lower end of the reaction rod and to transmit the data.

[0010] Two sets of the settling sensing components are symmetrically arranged at both ends of the receiving cavity, two sets of the settling reaction components are arranged between the two sets of the settling sensing components, and two sets of the data reading components are arranged in a one-to-one correspondence with the two sets of the settling reaction components.

[0011] In one possible implementation, the sedimentation reaction assembly further includes a monitoring liquid pipe with both openings facing upwards. The lower end of the reaction rod passes through the opening of the first side pipe of the monitoring liquid pipe, and a float is disposed inside the second side pipe of the monitoring liquid pipe. Monitoring liquid is disposed between the lower end of the reaction rod and the float. The data reading assembly is used to read the position data of the float.

[0012] In one possible implementation, the lower end of the reaction rod is provided with a piston that matches the first side conduit.

[0013] In one possible implementation, the inner diameter of the second-side pipe is smaller than the inner diameter of the first-side pipe.

[0014] In one possible implementation, the data reading component includes:

[0015] A displacement sensor, positioned directly above the float, is used to read the distance between the float and the displacement sensor. The displacement sensor is connected to a power supply line and a data transmission line.

[0016] A cable tee tube, suitable for the passage of the power supply line and the data transmission line, includes a first branch tube, a second branch tube and a third branch tube, the lower end of the third branch tube is rotatably disposed on the upper end surface of the housing, and the first branch tube and the second branch tube are respectively disposed on the upper end of the third branch tube.

[0017] In one possible implementation, a buffer block is provided inside the sensing slide, and the buffer block is located below the sensing rod.

[0018] In one possible implementation, the outer diameter of the sensing rod is smaller than the inner diameter of the sensing slide, and a corrugated pipe is provided at the upper end of the sensing slide. The upper end of the corrugated pipe is sleeved on the middle part of the sensing rod and located below the connecting rod.

[0019] In one possible implementation, a sensing plate is provided at the upper end of the sensing rod.

[0020] A roadbed construction settlement monitoring system is provided, which adopts a roadbed construction settlement monitoring device as described above. Two sets of the roadbed construction settlement monitoring devices are symmetrically arranged in the roadbed along the length direction perpendicular to the roadbed.

[0021] In one possible implementation, multiple sets of roadbed construction settlement monitoring devices are provided along the length of the roadbed, and the length directions of two adjacent sets of roadbed construction settlement monitoring devices are perpendicular to each other.

[0022] The beneficial effects of the roadbed construction settlement monitoring device provided by this utility model are as follows:

[0023] Compared with existing technologies, the enclosure is used to install at the bottom of the roadbed, and the settlement sensing component, settlement reaction component and data reading component are set in the receiving cavity inside the enclosure. The enclosure is used to protect the settlement sensing component, settlement reaction component and data reading component.

[0024] The settlement sensing component is used to receive external settlement data. The sensing cylinder and sensing rod are vertically arranged. The sensing cylinder is placed inside the receiving cavity. The sensing rod is inserted into the sensing cylinder through the upper opening and has the freedom to slide up and down inside the sensing cylinder. The upper end of the sensing rod extends out of the box and into the roadbed. Once the roadbed settles, it will squeeze the sensing rod, causing the sensing rod to move downward and transmit the settlement data of the roadbed to the settlement response component.

[0025] The sedimentation reaction component is used to receive sedimentation data from the sensing rod. It is installed inside the box. The connecting rod connects the side wall of the sensing rod and the upper end of the reaction rod. The reaction rod and the sensing rod descend synchronously. The data reading component reads the position change data of the lower end of the reaction rod, and thus obtains the position change data of the sensing rod.

[0026] The settlement sensing component, settlement reaction component, and data reading component are each provided in two sets. The two sets of settlement sensing components are symmetrically arranged at both ends of the receiving cavity. The two sets of sensing rods can respectively receive the settlement data of the roadbed at their respective locations. By the height difference between the two sets of sensing rods, the difference in settlement of the roadbed in the length direction of the box can be obtained, that is, the lateral displacement deviation of the roadbed. This helps to analyze the internal settlement change trend of the roadbed and obtain the internal angle deviation of the roadbed. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A front view structural schematic diagram of the roadbed construction settlement monitoring device provided in this embodiment of the utility model;

[0029] Figure 2 A schematic diagram of the left-hand structure of the roadbed construction settlement monitoring device provided in this embodiment of the utility model;

[0030] Figure 3 A schematic diagram of the internal structure of the roadbed construction settlement monitoring device provided in this embodiment of the utility model;

[0031] Figure 4 A schematic diagram of the installation of the roadbed construction settlement monitoring device provided in this embodiment of the utility model. Figure 1 ;

[0032] Figure 5 A schematic diagram of the installation of the roadbed construction settlement monitoring device provided in this embodiment of the utility model. Figure 2 .

[0033] In the diagram: 1. Housing; 2. Receiving cavity; 3. Induction slide; 4. Induction rod; 5. Connecting rod; 6. Response rod; 7. Monitoring liquid pipe; 8. First side pipe; 9. Second side pipe; 10. Float; 11. Monitoring liquid; 12. Piston; 13. Displacement sensor; 14. First branch pipe; 15. Second branch pipe; 16. Third branch pipe; 17. Buffer block; 18. Corrugated pipe fitting; 19. Induction plate; 20. Wiring pipe. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] Please refer to Figure 1 This invention provides a specific embodiment of a roadbed construction settlement monitoring device, comprising a housing 1, a settlement sensing component, a settlement response component, and a data reading component. The housing 1 has an internal cavity 2. The settlement sensing component includes a sensing slide cylinder 3 and a sensing rod 4. The sensing slide cylinder 3 is vertically arranged inside the housing 1. The lower end of the sensing rod 4 passes through the upper end of the sensing slide cylinder 3 and has the freedom to slide up and down. The upper end of the sensing rod 4 extends upward through the upper surface of the housing 1 and is used to receive external settlement data. The settlement response component... The components are installed inside the housing 1, including a connecting rod 5 and a reaction rod 6. One end of the connecting rod 5 is located on the side wall inside the housing 1 where the sensing rod 4 is located, and above the sensing slide cylinder 3. The reaction rod 6 is vertically installed on the lower end face of the other end of the connecting rod 5. The data reading component is used to read the position data of the lower end of the reaction rod 6 and transmit the data. Two sets of settlement sensing components are symmetrically arranged at both ends of the receiving cavity 2, and two sets of settlement reaction components are arranged between the two sets of settlement sensing components. The two sets of data reading components are arranged one-to-one with the two sets of settlement reaction components.

[0036] For details, please refer to Figure 1 The housing 1 is used for installation inside the roadbed and at the bottom of the roadbed. The settlement sensing component, settlement reaction component, and data reading component are housed in the receiving cavity 2 of the housing 1. The housing 1 isolates and protects the settlement sensing component, settlement reaction component, and data reading component.

[0037] The settlement sensing component is used to receive external settlement. The sensing cylinder 3 and the sensing rod 4 are arranged vertically. The sensing cylinder 3 is set in the receiving cavity 2 and has an upper opening. The lower end of the sensing rod 4 passes through the upper opening into the sensing cylinder 3 and can slide up and down in the sensing cylinder 3. The upper end of the sensing rod 4 passes out of the box 1 and into the roadbed. The upper end of the sensing rod 4 is used to receive the settlement of the roadbed. Once the roadbed settles, it will squeeze the sensing rod 4 and move the sensing rod 4 downward, transmitting the settlement data of the roadbed to the settlement reaction component.

[0038] The settling reaction assembly is used to receive the settling data of the sensing rod 4. It is set inside the housing 1 and next to the settling sensing assembly. The connecting rod 5 is set horizontally. The first end of the connecting rod 5 is set on the side wall of the sensing rod 4, and the upper end of the reaction rod 6 is set on the lower end face of the second end of the connecting rod 5. The connecting rod 5 and the reaction rod 6 have the freedom to move up and down in the receiving cavity 2. The connecting rod 5 and the reaction rod 6 descend synchronously with the sensing rod 4. The data reading assembly reads the position change data of the lower end of the reaction rod 6, and thus obtains the position change data of the sensing rod 4. The position change data of the sensing rod 4 can be equivalent to the position change data of the sensing rod 4, and the settling data of the sensing rod 4 can be obtained.

[0039] Two sets of settlement sensing components, two sets of settlement reaction components, and two sets of data reading components are provided. The two sets of settlement sensing components are symmetrically arranged at both ends of the receiving cavity 2. The two sets of settlement reaction components are symmetrically arranged inside the receiving cavity 2. The two sets of settlement reaction components and the two sets of data reading components are arranged between the two sets of settlement sensing components. The two sets of sensing rods 4 can receive the settlement data of the roadbed at their respective locations. By the height difference between the two sets of sensing rods 4, the difference in settlement of the roadbed in the length direction of the box 1 can be obtained, that is, the lateral displacement deviation of the roadbed. This helps to analyze the internal settlement change trend of the roadbed and obtain the internal angle deviation of the roadbed.

[0040] As a specific embodiment of the roadbed construction settlement monitoring device provided by this utility model, please refer to Figure 1 The sedimentation reaction assembly also includes a monitoring liquid pipe 7, with both openings of the monitoring liquid pipe 7 facing upwards. The lower end of the reaction rod 6 passes through the opening of the first side pipe 8 of the monitoring liquid pipe 7. A float 10 is installed inside the second side pipe 9 of the monitoring liquid pipe 7. A monitoring liquid 11 is installed between the lower end of the reaction rod 6 and the float 10. A data reading assembly is used to read the position data of the float 10.

[0041] For details, please refer to Figure 1 The monitoring liquid tube 7 is a U-shaped tube with two upward openings. The monitoring liquid tube 7 includes a first side pipe 8, a connecting pipe, and a second side pipe 9 connected end to end. The connecting pipe connects the lower end of the first side pipe 8 and the lower end of the second side pipe 9. The connecting pipe can be an arc-shaped bend. The first side pipe 8 is located close to the sensing rod 4, and the second side pipe 9 is located on the side of the first side pipe 8 away from the sensing rod 4. The monitoring liquid tube 7 contains monitoring liquid 11, and the liquid level of the monitoring liquid 11 is lower than the two openings of the monitoring liquid tube 7.

[0042] The lower end of the reaction rod 6 is inserted into the first side pipe 8 and has the freedom to move up and down within the first side pipe 8. The lower end of the reaction rod 6 is located above the surface of the monitoring liquid 11 and is in contact with the surface of the liquid. A float 10 is installed inside the second side pipe 9. The float 10 floats on the surface of the monitoring liquid 11 and the outer side wall of the float 10 matches the inner side wall of the second side pipe 9.

[0043] In the initial state, the liquid levels of the monitoring liquid 11 in the first side pipe 8 and the second side pipe 9 are the same. Once sedimentation occurs at the sensing rod 4, the lower end of the reaction rod 6 descends synchronously, pushing the monitoring liquid 11 to flow. The float 10 floats upward, and the data reading component reads the position data of the float 10 to obtain the sedimentation data at the sensing rod 4.

[0044] As a specific embodiment of the roadbed construction settlement monitoring device provided by this utility model, please refer to Figure 1 The lower end of the reaction rod 6 is provided with a piston 12 that matches the first side pipe 8.

[0045] For details, please refer to Figure 1 The piston 12 is located at the lower end of the reaction rod 6. The outer wall of the piston 12 matches the inner wall of the first side pipe 8 to prevent the monitoring liquid 11 from flowing towards the reaction rod 6 and affecting the accuracy of the data.

[0046] As a specific embodiment of the roadbed construction settlement monitoring device provided by this utility model, please refer to Figure 1 The inner diameter of the second side pipe 9 is smaller than the inner diameter of the first side pipe 8.

[0047] For details, please refer to Figure 1 When the liquid level in the first side pipe 8 changes, the degree of change in the liquid level in the second side pipe 9 is greater than that in the first side pipe 8, which can amplify the distance the reaction rod 6 descends, thus aiding in data monitoring.

[0048] As a specific embodiment of the roadbed construction settlement monitoring device provided by this utility model, please refer to Figure 1 The data reading component includes a displacement sensor 13 and a cable tee. The displacement sensor 13 is positioned directly above the float 10 and is used to read the distance between the float 10 and the displacement sensor 13. The displacement sensor 13 is connected to a power supply line and a data transmission line. The cable tee is suitable for the passage of the power supply line and the data transmission line and includes a first branch pipe 14, a second branch pipe 15, and a third branch pipe 16. The lower end of the third branch pipe 16 is rotatably positioned on the upper surface of the housing 1, and the first branch pipe 14 and the second branch pipe 15 are respectively positioned on the upper end of the third branch pipe 16.

[0049] For details, please refer to Figure 1An installation plate is provided on the side wall of the receiving cavity 2. The installation plate is positioned directly above the two sets of second side pipes 9. Two sets of displacement sensors 13 are provided on the lower end face of the installation plate. The displacement sensors 13 are arranged in a one-to-one correspondence with the floats 10. A cable tee is suitable for the passage of power supply lines and data transmission lines connected to the displacement sensors 13. The third branch pipe 16 is set vertically. The lower end of the third branch pipe 16 is rotatably set on the upper end face of the housing 1. The third branch pipe 16 is connected to the receiving cavity 2. The first branch pipe 14 and the second branch pipe 15 are respectively set on the upper end of the third branch pipe 16, and both the first branch pipe 14 and the second branch pipe 15 are connected to the third branch pipe 16. The power supply lines and data transmission lines pass into the third branch pipe 16 from bottom to top and exit from the first branch pipe 14 or the second branch pipe 15.

[0050] The ends of the first branch pipe 14 and the second branch pipe 15, which are far from the third branch pipe 16, are each connected to other overhead pipes 20. The overhead pipes 20 can connect multiple sets of roadbed construction settlement monitoring devices in series, which facilitates the protection of power supply lines and data transmission lines.

[0051] As a specific embodiment of the roadbed construction settlement monitoring device provided by this utility model, please refer to Figure 1 A buffer block 17 is provided inside the sensing slide cylinder 3, and the buffer block 17 is located below the sensing rod 4.

[0052] For details, please refer to Figure 1 The buffer block 17 is filled inside the sensing slide cylinder 3 and is located below the sensing rod 4. The buffer block 17 can be made of materials such as sponge. In the initial state, the buffer block 17 can support the sensing rod 4. As the sensing rod 4 descends, the buffer block 17 is pressed down and the height of the buffer block 17 decreases.

[0053] As a specific embodiment of the roadbed construction settlement monitoring device provided by this utility model, please refer to Figure 1 The outer diameter of the sensing rod 4 is smaller than the inner diameter of the sensing slide cylinder 3. A corrugated pipe fitting 18 is provided at the upper end of the sensing slide cylinder 3. The upper end of the corrugated pipe fitting 18 is sleeved in the middle of the sensing rod 4 and located below the connecting rod 5.

[0054] For details, please refer to Figure 1 There is a gap between the sensing rod 4 and the sensing slide cylinder 3 to reduce the resistance when the sensing rod 4 slides down. The corrugated pipe 18 is set above the sensing slide cylinder 3. The upper end of the corrugated pipe 18 is sleeved on the outside of the sensing rod 4. The upper end of the corrugated pipe 18 is located below the connecting rod 5. The length of the corrugated pipe 18 can be reduced. The corrugated pipe 18 can seal the upper end of the sensing slide cylinder 3 to prevent external debris from entering the sensing slide cylinder 3.

[0055] As a specific embodiment of the roadbed construction settlement monitoring device provided by this utility model, please refer to Figure 1 A sensor plate 19 is provided at the upper end of the sensor rod 4.

[0056] For details, please refer to Figure 1 The sensing plate 19 is set at the upper end of the sensing rod 4 to increase the sensing area for settlement.

[0057] Please refer to Figure 1 The present invention provides a specific implementation of a roadbed construction settlement monitoring system, which adopts a roadbed construction settlement monitoring device as described above. The feature is that two sets of roadbed construction settlement monitoring devices are symmetrically arranged in the roadbed along the length direction perpendicular to the roadbed.

[0058] For details, please refer to Figure 1 Two sets of roadbed construction settlement monitoring devices are installed on the cross section perpendicular to the length direction of the roadbed. The two sets of roadbed construction settlement monitoring devices can monitor the settlement on both sides of the roadbed at the same time.

[0059] As a specific implementation of the roadbed construction settlement monitoring system provided by this utility model, please refer to Figure 1 Multiple sets of roadbed construction settlement monitoring devices are installed along the length of the roadbed, and the length directions of two adjacent sets of roadbed construction settlement monitoring devices are perpendicular to each other.

[0060] For details, please refer to Figure 1 Along the length of the roadbed, multiple sets of roadbed construction settlement monitoring devices are installed. The pipeline 20 can connect the roadbed construction settlement monitoring devices located on the same side in series, which facilitates the protection of power supply lines and data transmission lines. The two adjacent sets of roadbed construction settlement monitoring devices are set in perpendicular directions. That is, one set of roadbed construction settlement monitoring devices is set along the length of the roadbed, and the roadbed construction settlement monitoring device next to it is set perpendicular to the length of the roadbed, which can monitor the settlement situation more comprehensively.

[0061] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for monitoring settlement of subgrade construction, characterized in that, include: The box has an internal cavity for receiving contents; The settlement sensing component includes a sensing slide and a sensing rod. The sensing slide is vertically installed inside the box. The lower end of the sensing rod passes through the upper end of the sensing slide and has the freedom to slide up and down. The upper end of the sensing rod extends upward through the upper surface of the box. The upper end of the sensing rod is used to receive external settlement. A sedimentation reaction assembly is installed inside the box, including a connecting rod and a reaction rod. One end of the connecting rod is located on the side wall inside the box where the sensing rod is located, and is located above the sensing slide cylinder. The reaction rod is vertically installed on the lower end face of the other end of the connecting rod. as well as A data reading component is used to read the position data of the lower end of the reaction rod and to transmit the data. Two sets of the settling sensing components are symmetrically arranged at both ends of the receiving cavity, two sets of the settling reaction components are arranged between the two sets of the settling sensing components, and two sets of the data reading components are arranged in a one-to-one correspondence with the two sets of the settling reaction components.

2. The settlement monitoring device for roadbed construction according to claim 1, wherein The sedimentation reaction assembly also includes a monitoring liquid pipe with both openings facing upwards. The lower end of the reaction rod passes through the opening of the first side pipe of the monitoring liquid pipe, and a float is installed inside the second side pipe of the monitoring liquid pipe. Monitoring liquid is disposed between the lower end of the reaction rod and the float. The data reading assembly is used to read the position data of the float.

3. The settlement monitoring device for roadbed construction according to claim 2, wherein The lower end of the reaction rod is provided with a piston that matches the first side pipe.

4. The settlement monitoring device for roadbed construction according to claim 2, wherein The inner diameter of the second side pipe is smaller than the inner diameter of the first side pipe.

5. The settlement monitoring device for roadbed construction according to claim 2, wherein The data reading component includes: A displacement sensor, positioned directly above the float, is used to read the distance between the float and the displacement sensor. The displacement sensor is connected to a power supply line and a data transmission line. A cable tee tube, suitable for the passage of the power supply line and the data transmission line, includes a first branch tube, a second branch tube and a third branch tube, the lower end of the third branch tube is rotatably disposed on the upper end surface of the housing, and the first branch tube and the second branch tube are respectively disposed on the upper end of the third branch tube.

6. The settlement monitoring device for roadbed construction of claim 1, wherein A buffer block is provided inside the sensing slide, and the buffer block is located below the sensing rod.

7. The settlement monitoring device for roadbed construction according to claim 1, wherein The outer diameter of the sensing rod is smaller than the inner diameter of the sensing slide cylinder. A corrugated pipe is provided at the upper end of the sensing slide cylinder. The upper end of the corrugated pipe is sleeved on the middle part of the sensing rod and located below the connecting rod.

8. The settlement monitoring device for roadbed construction of claim 1, wherein, A sensing plate is provided at the upper end of the sensing rod.

9. A system for monitoring settlement of subgrade construction using a device for monitoring settlement of subgrade construction as claimed in claim 1, characterized in that, Two sets of roadbed construction settlement monitoring devices are symmetrically installed within the roadbed along the length direction perpendicular to the roadbed.

10. A roadbed construction settlement monitoring system as described in claim 9, characterized in that, Multiple sets of roadbed construction settlement monitoring devices are installed along the length of the roadbed, and the length directions of two adjacent sets of roadbed construction settlement monitoring devices are perpendicular to each other.

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