High fill roadbed settlement monitoring device

Abstract

The utility model relates to the technical field of road construction, in particular to a high fill roadbed settlement monitoring device which comprises a bottom plate body, a first connecting sleeve is fixedly connected to the center of the upper surface of the bottom plate body, a measuring rod body is connected to the upper side of the first connecting sleeve, and a measuring pipe top cap is connected to the upper end of the measuring rod body. The outer side of the measuring rod body is sleeved with a PVC protective sleeve, a fixing assembly is arranged on the surface of the bottom plate body, and the fixing assembly comprises a connecting hole, a fixing anchor rod, a locking screw and an anti-skid protruding block; after the position of the bottom plate body is fixed, the stability of the bottom plate body is improved through cooperation of the fixing anchor rods and the anti-skid protruding blocks, the stability of the settlement plate in the installation process and the roadbed settlement process is improved, deviation of the bottom plate body and the measuring rod body is avoided, and then the monitoring precision is improved.

Description

Technical Field

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

[0002] With the continuous advancement of road construction technology, the stability and safety of high embankment subgrades, as an important component of transportation facilities such as highways and railways, are receiving increasing attention from the engineering community. However, due to their unique filling methods and geological conditions, high embankment subgrades are often prone to settlement problems, posing a potential threat to the normal use of transportation facilities and traffic safety. Therefore, real-time monitoring and early warning of settlement in high embankment subgrades are of great significance for ensuring the safe operation of transportation facilities.

[0003] Currently, the main methods for monitoring the settlement of high embankment subgrades include traditional methods such as settlement plates, settlement cups, and edge piles. Among them, when using settlement plates to monitor subgrade settlement, the settlement plates need to be pre-embedded on the prepared foundation. Existing settlement plates mostly rely on sand and soil for compaction and fixation. During installation and subgrade settlement, the sand and soil are prone to loosening, which in turn causes the angle of the settlement plate to shift, affecting the accuracy of subgrade settlement monitoring.

[0004] Therefore, it is necessary to invent a settlement monitoring device for high embankment subgrades to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-fill roadbed settlement monitoring device to solve the problem that roadbed settlement easily leads to the loosening of sand and soil, which in turn causes the angle of the settlement plate to shift, affecting the accuracy of roadbed settlement monitoring.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high embankment roadbed settlement monitoring device, comprising a base plate body, a first connecting sleeve fixedly connected to the center of the upper surface of the base plate body, a measuring rod body connected to the upper side of the first connecting sleeve, a measuring tube cap connected to the upper end of the measuring rod body, a PVC protective sleeve sleeved on the outer side of the measuring rod body, and a fixing component provided on the surface of the base plate body, the fixing component including a connecting hole, a fixing anchor, a locking screw and an anti-slip protrusion.

[0007] By adopting the above technical solution, the base plate body, the measuring rod body, and the measuring tube cap work together to provide observation points. The PVC sheath is used to protect the measuring rod body and the base plate body. During the installation process, after the position of the base plate body is fixed, the stability of the base plate body is improved by using anchor rods and anti-slip protrusions, thereby improving the stability of the settlement plate during the roadbed settlement process and thus improving the monitoring accuracy.

[0008] Optionally, connection holes are provided at all four corners of the base plate body, and fixed anchor rods are inserted into the four sets of connection holes. The upper end of the fixed anchor rods is threaded with a locking screw.

[0009] By adopting the above technical solution, the fixed anchor rod is inserted into the foundation through the connection hole, and then the locking screw is connected to the upper end of the fixed anchor rod, thereby stably fixing the base plate body to the foundation surface.

[0010] Optionally, multiple sets of anti-slip protrusions are fixedly connected to the lower surface of the base plate body.

[0011] By adopting the above technical solution, multiple sets of protective protrusions work together to prevent displacement when the base plate is filled with sand, thereby further improving the stability of the settlement plate during installation and monitoring.

[0012] Optionally, the upper and lower ends of the measuring rod body are fixedly connected with first threaded tubes, and the first connecting sleeve and the measuring tube cap are respectively threadedly connected to the upper and lower sets of first threaded tubes.

[0013] By adopting the above technical solution, the lower first threaded tube is threadedly connected to the first connecting sleeve, fixing the probe body to the surface of the base plate body, and the probe cap is threadedly connected to the upper first threaded tube, fixing it to the upper end of the probe body.

[0014] Optionally, a first connector is provided between the upper and lower sets of the measuring rod bodies. The first connector is threaded to the first threaded pipe at the end of the upper and lower sets of the measuring rod bodies, and a first adjusting block is fixedly connected to the surface of the first connector.

[0015] By adopting the above technical solution, the first threaded tube at the lower end of the upper measuring rod body and the first threaded tube at the upper end of the lower measuring rod body are respectively threaded to the upper and lower ends of the first connector, thereby locking and fixing the two sets of measuring rod bodies and extending the measuring rod body.

[0016] Optionally, the upper surface of the base plate body is fixedly connected with snap-fit ​​blocks at the positions on both the front and rear sides of the first connecting sleeve, and a second connecting sleeve is sleeved on the outer side of the first connecting sleeve, with the second connecting sleeve snapped between the front and rear snap-fit ​​blocks.

[0017] By adopting the above technical solution, the two sets of snap-fit ​​blocks clamp and fix the second connecting sleeve, thereby improving the stability of the PVC sheath pipe.

[0018] Optionally, the upper end of the PVC sheath is provided with a top sealing sleeve, the upper end of the top sealing sleeve is provided with a connecting hole, and the upper and lower ends of the PVC sheath are fixedly connected with second threaded pipes, and the second connecting sleeve and the top sealing sleeve are respectively threadedly connected to the upper and lower sets of second threaded pipes.

[0019] By adopting the above technical solution, the lower second threaded pipe is threadedly connected to the second connecting sleeve, and the PVC sheath is fixed to the upper surface of the base plate body. The top sealing sleeve is threadedly connected to the upper second threaded pipe, and the top sealing sleeve is fixed to the upper end of the PVC sheath.

[0020] Optionally, a second connector is provided between the upper and lower sets of PVC sheath pipes. The second connector is threaded to the second threaded pipe at the ends of the upper and lower sets of PVC sheath pipes respectively. A second adjusting block is fixedly connected to the surface of the second connector.

[0021] By adopting the above technical solution, the second threaded pipe at the lower end of the upper PVC sheath and the second threaded pipe at the upper end of the lower PVC sheath are respectively threaded to the upper and lower ends of the second connector, connecting the two sets of PVC sheaths together and extending the PVC sheath.

[0022] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0023] 1. This utility model improves the stability of the base plate body by fixing the position of the base plate body and using fixed anchor rods and anti-slip protrusions. This improves the stability of the settlement plate during installation and during roadbed settlement, prevents the base plate body and measuring rod body from shifting, and thus improves the monitoring accuracy.

[0024] 2. This utility model uses two sets of snap-fit ​​blocks to fix the second connecting sleeve to the upper surface of the base plate body, thereby improving the connection strength between the PVC sheath tube and the base plate body. At the same time, a top sealing sleeve is used to seal the upper end of the PVC sheath tube, and the upper end of the measuring rod body is supported by the edge of the sleeve hole, so as to prevent the excessively tall measuring rod body from tilting, thereby further improving the monitoring accuracy. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the upper structure of the base plate body of this utility model;

[0028] Figure 4 This is a schematic diagram of the lower side structure of the base plate body of this utility model;

[0029] Figure 5 This is a schematic diagram of the measuring rod body structure of this utility model;

[0030] Figure 6 This is a schematic diagram of the PVC sheath pipe structure of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Base plate body; 11. Connecting hole; 12. Fixed anchor rod; 13. Locking screw; 14. Anti-slip protrusion; 15. First connecting sleeve; 16. Snap-fit ​​block; 17. Second connecting sleeve; 2. Measuring rod body; 21. First threaded tube; 22. First connector; 23. First adjusting block; 24. Measuring tube top cap; 3. PVC sheath tube; 31. Second threaded tube; 32. Second connector; 33. Second adjusting block; 34. Top sealing sleeve; 35. Connecting hole. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0034] This utility model provides, for example Figures 1 to 4 The high embankment roadbed settlement monitoring device shown includes a base plate body 1. A first connecting sleeve 15 is fixedly connected to the center of the upper surface of the base plate body 1. A measuring rod body 2 is connected to the upper side of the first connecting sleeve 15. A measuring tube cap 24 is connected to the upper end of the measuring rod body 2. A PVC protective sleeve 3 is sleeved on the outer side of the measuring rod body 2. A fixing component is provided on the surface of the base plate body 1. The fixing component includes connecting holes 11, fixing anchor rods 12, locking screws 13 and anti-slip protrusions 14. Connecting holes 11 are opened at the four corners of the base plate body 1. Fixing anchor rods 12 are inserted into the four sets of connecting holes 11. Locking screws 13 are threaded to the upper end of the fixing anchor rods 12. Multiple sets of anti-slip protrusions 14 are fixedly connected to the lower surface of the base plate body 1.

[0035] The base plate body 1 provides mechanical strength and rigidity and is made of A3 steel. The measuring rod body 2 connects the base plate body 1 and the observation point and is made of galvanized steel pipe, aluminum alloy or stainless steel to ensure measurement accuracy and structural stability. The PVC sheath tube 3 protects the measuring rod body 2. The measuring tube top cap 24 is made of stainless steel and is used to mark the position of the observation point to ensure measurement accuracy.

[0036] The specific procedure for monitoring roadbed settlement is as follows: First, connect the measuring rod body 2, PVC sheath 3, and base plate body 1 to complete the assembly of the settlement plate; then, determine the monitoring point on the prepared base, excavate the foundation pit at the monitoring point, and lay a 600mm*600mm*200mm sand cushion layer in the foundation pit, and then place the settlement plate horizontally inside the foundation pit; next, insert the fixing anchor 12 through the connecting hole 11 into the base, and then connect the locking screw 13 to the upper end of the fixing anchor 12 to lock and fix the base plate body 1, thereby improving the stability of the settlement plate. After adjusting to a horizontal position using a level, fill the area around the settlement plate with yellow sand, and then level and compact the backfill soil. During the construction and filling of the roadbed, the fill material around the settlement slab should be compacted first to protect the settlement slab. At the same time, reliable protective measures should be taken for the settlement slab at all times. If any damage occurs, the engineer should be notified immediately, and the damage should be repaired immediately under the engineer's instructions. The elevation of the measuring points should be re-measured and recorded. During the construction period, settlement observation should be carried out after each layer is filled. If the time interval between filling on both sides is long, observation should be carried out every three days. After the roadbed filling is completed and the settlement preloading period begins, observation should be carried out every fourteen days. If any settlement is found, it should be filled in a timely manner to maintain the elevation required by the design. During the monitoring process, original records, settlement summary tables, settlement curve diagrams, and other data should be prepared. Finally, an analysis report on the completion of the preloading period should be prepared.

[0037] See Figure 3 and Figure 5 and Figure 6 The upper and lower ends of the measuring rod body 2 are fixedly connected with first threaded tubes 21. The first connecting sleeve 15 and the measuring tube cap 24 are respectively threaded to the upper and lower sets of first threaded tubes 21. A first connecting head 22 is provided between the upper and lower sets of measuring rod bodies 2. The first connecting head 22 is threaded to the first threaded tubes 21 at the ends of the upper and lower sets of measuring rod bodies 2. A first adjusting block 23 is fixedly connected to the surface of the first connecting head 22. A snap-fit ​​block 16 is fixedly connected to the upper surface of the base plate body 1 at the front and rear sides of the first connecting sleeve 15. A second connecting sleeve 17 is sleeved on the outside of the first connecting sleeve 15. The connecting sleeve 17 is snapped between the front and rear sets of snap-fit ​​blocks 16. The upper end of the PVC sheath tube 3 is provided with a top sealing sleeve 34. The upper end of the top sealing sleeve 34 is provided with a sleeve hole 35. The upper and lower ends of the PVC sheath tube 3 are fixedly connected with second threaded tubes 31. The second connecting sleeve 17 and the top sealing sleeve 34 are respectively threadedly connected to the upper and lower sets of second threaded tubes 31. The upper and lower sets of PVC sheath tubes 3 are provided with a second connector 32. The second connector 32 is respectively threadedly connected to the second threaded tubes 31 at the ends of the upper and lower sets of PVC sheath tubes 3. The surface of the second connector 32 is fixedly connected with a second adjusting block 33.

[0038] In addition, during the assembly of the settlement plate, firstly, the second connecting sleeve 17 is snapped into the inner side of the two sets of snap-fit ​​blocks 16. Then, the first threaded tube 21 at the end of the measuring rod body 2 is threadedly connected to the first connecting sleeve 15, connecting the measuring rod body 2 to the base plate body 1. Next, the PVC sheath tube 3 is fitted onto the outside of the measuring rod body 2, and the lower end of the second threaded tube 31 is connected to the second connecting sleeve 17, fixing the PVC sheath tube 3 to the surface of the base plate body 1. Then, the first connector 22 and the second connector 32 are respectively fixed to the measuring rod body 2. The upper end of the PVC sheath tube 3 is then fixedly connected to the upper ends of the first connector 22 and the second connector 32, respectively, to the upper end of the probe body 2 and the PVC sheath tube 3. The probe body 2 and the PVC sheath tube 3 are extended. Finally, the probe cap 24 is threadedly connected to the first threaded tube 21 at the upper end of the probe body 2. The probe cap 24 is fixed to the upper end of the probe body 2. Then, the top sealing sleeve 34 is fitted onto the surface of the probe body 2 and connected to the upper second threaded tube 31 to seal the upper end of the PVC sheath tube 3.

[0039] The working principle of this utility model is as follows: After the base plate body 1 is fixed in position, the stability of the base plate body 1 is improved by using the fixed anchor rod 12 and the anti-slip protrusion 14. This improves the stability of the settlement plate during installation and during roadbed settlement, preventing the base plate body 1 and the measuring rod body 2 from shifting, thereby improving the monitoring accuracy. At the same time, the second connecting sleeve 17 is fixed to the upper surface of the base plate body 1 by using two sets of snap-fit ​​blocks 16, thereby improving the connection strength between the PVC sheath tube 3 and the base plate body 1. Meanwhile, the upper end of the PVC sheath tube 3 is sealed by the top sealing sleeve 34, and the upper end of the measuring rod body 2 is supported by the edge of the sleeve hole 35, preventing the excessively tall measuring rod body 2 from tilting, further improving the monitoring accuracy.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A settlement monitoring device for high embankment roadbeds, comprising a base plate body (1), characterized in that: A first connecting sleeve (15) is fixedly connected to the center of the upper surface of the base plate body (1). A measuring rod body (2) is connected to the upper side of the first connecting sleeve (15). A measuring tube cap (24) is connected to the upper end of the measuring rod body (2). A PVC protective sleeve (3) is sleeved on the outer side of the measuring rod body (2). A fixing component is provided on the surface of the base plate body (1). The fixing component includes a connecting hole (11), a fixing anchor (12), a locking screw (13), and an anti-slip protrusion (14).

2. The settlement monitoring device for high embankment subgrade according to claim 1, characterized in that: The base plate body (1) has connection holes (11) at all four corners. Fixed anchor rods (12) are inserted into the four sets of connection holes (11). The upper end of the fixed anchor rods (12) is threaded with locking screws (13).

3. The settlement monitoring device for high embankment subgrade according to claim 2, characterized in that: Multiple sets of anti-slip protrusions (14) are fixedly connected to the lower surface of the base plate body (1).

4. The settlement monitoring device for high embankment subgrade according to claim 1, characterized in that: The upper and lower ends of the measuring rod body (2) are fixedly connected with first threaded tubes (21), and the first connecting sleeve (15) and the measuring tube cap (24) are respectively threaded to the upper and lower sets of first threaded tubes (21).

5. A settlement monitoring device for high embankment subgrade according to claim 4, characterized in that: A first connector (22) is provided between the upper and lower sets of the measuring rod bodies (2). The first connector (22) is threadedly connected to the first threaded tube (21) at the ends of the upper and lower sets of the measuring rod bodies (2). A first adjusting block (23) is fixedly connected to the surface of the first connector (22).

6. The settlement monitoring device for high embankment subgrade according to claim 1, characterized in that: The upper surface of the base plate body (1) is fixedly connected with snap-fit ​​blocks (16) on both the front and rear sides of the first connecting sleeve (15). The outer side of the first connecting sleeve (15) is fitted with a second connecting sleeve (17), which is snapped between the front and rear snap-fit ​​blocks (16).

7. A settlement monitoring device for high embankment subgrade according to claim 6, characterized in that: The upper end of the PVC sheath (3) is provided with a top sealing sleeve (34), and the upper end of the top sealing sleeve (34) is provided with a sleeve hole (35). The upper and lower ends of the PVC sheath (3) are fixedly connected with second threaded pipes (31). The second connecting sleeve (17) and the top sealing sleeve (34) are respectively threadedly connected to the upper and lower sets of second threaded pipes (31).

8. A settlement monitoring device for high embankment subgrade according to claim 7, characterized in that: A second connector (32) is provided between the upper and lower sets of PVC sheath pipes (3). The second connector (32) is threadedly connected to the second threaded pipe (31) at the ends of the upper and lower sets of PVC sheath pipes (3). A second adjusting block (33) is fixedly connected to the surface of the second connector (32).

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