Settlement monitoring device suitable for being installed in drill hole

Abstract

The utility model discloses a settlement monitoring device suitable for being installed in a drill hole, belongs to the technical field of settlement monitoring devices, and can solve the problems that an existing settlement ring easily slides upwards along a settlement pipe in the installation process and deviates from the installation position. The device comprises a settling pipe, wherein a guide groove is formed in the outer wall of the settling pipe in the axial direction of the settling pipe; the top end of the guide groove is a preset length away from the top surface of the settling pipe; the inner diameter of the settlement ring is matched with the outer diameter of the settlement pipe; the settling ring sleeves the settling pipe and is positioned at the top end of the guide groove; the inner wall of the settlement ring is provided with a protruding buckle, and the buckle is clamped in the guide groove and can move along the guide groove under the action of external force. The settlement monitoring device is used for settlement monitoring.

Description

Technical Field

[0001] The utility model relates to a settlement monitoring device suitable for installation in a borehole, belonging to the technical field of settlement monitoring devices. Background Art

[0002] In civil engineering, settlement monitoring devices are often used to monitor the settlement of soil masses. The settlement monitoring device usually includes a settlement pipe and a settlement ring sleeved thereon. The settlement ring can slide along the settlement pipe under the action of external forces other than its own gravity. After the settlement pipe and the settlement ring are installed in the soil mass, when the soil mass settles, it will drive the settlement ring to slide down along the settlement pipe, so as to realize settlement monitoring.

[0003] There are generally two installation methods for the settlement monitoring device. One is to bury it in the soil mass in advance during the engineering construction, and the other is to drill holes in the soil mass for installation after the engineering construction is completed. When installing by drilling, first drill a hole in the soil mass, then sleeve the settlement ring at a preset height of the settlement pipe, and then send the settlement pipe to a preset depth underground so that the settlement ring reaches the preset installation position. Finally, fill the gap between the settlement pipe and the borehole. To prevent the borehole from collapsing, a casing is generally set in the borehole. After the settlement pipe is placed, the casing is pulled out. Due to the narrow diameter of the borehole, the settlement ring is prone to friction with the casing during the process of being placed into the borehole, and the casing is also prone to friction with the settlement ring during the process of being pulled out. Under the action of friction force, the settlement ring will move upward with the casing, thus deviating from its preset installation position and affecting its installation accuracy.

[0004] At the same time, the circumferential direction of the existing settlement ring is usually provided with anchoring pieces for inserting into the soil mass to strengthen the connection between the settlement ring and the soil mass. However, when filling the gap between the settlement pipe and the borehole, the anchoring pieces will block the falling of sand, resulting in insufficient compaction of the gap below the settlement ring and affecting the accuracy of settlement monitoring. Summary of the Utility Model

[0005] The utility model provides a settlement monitoring device suitable for installation in a borehole, which can solve the problem that the existing settlement ring is prone to slide upward along the settlement pipe during the installation process and deviate from its preset installation position.

[0006] The utility model provides a settlement monitoring device suitable for installation in a borehole, and the device includes:

[0007] A settlement pipe, on the outer wall of which a guide groove is opened along its axial direction; the top end of the guide groove is at a preset length from the top surface of the settlement pipe;

[0008] A settlement ring, the inner diameter of which matches the outer diameter of the settlement pipe; the settlement ring is sleeved on the settlement pipe and is located at the top end of the guide groove; a protruding buckle is provided on the inner wall of the settlement ring, and the buckle is clamped in the guide groove and can move along the guide groove under the action of an external force.

[0009] Optionally, the settlement pipe includes:

[0010] An upper pipe section;

[0011] A lower pipe section, the top end of which is connected to the bottom end of the upper pipe section, and the outer diameter of which matches the outer diameter of the upper pipe section; the guide groove is opened on the outer wall of the lower pipe section, and the top end of the guide groove penetrates the top surface of the lower pipe section; the settlement ring is sleeved on the top end of the lower pipe section.

[0012] Optionally, the settlement ring is sleeved at the connection between the upper pipe section and the lower pipe section.

[0013] Optionally, the settlement ring includes:

[0014] An upper ring body, sleeved on the bottom end of the upper pipe section;

[0015] A lower ring body, sleeved on the top end of the lower pipe section; the top end of the lower ring body is connected to the bottom end of the upper ring body, and the inner diameter of the lower ring body matches the inner diameter of the upper ring body; the buckle is provided on the inner wall of the lower ring body.

[0016] Optionally, the outer diameters of the top end and the bottom end of the settlement ring are both smaller than the outer diameter of the middle part thereof.

[0017] Optionally, the shape of the settlement ring is a spindle.

[0018] Optionally, there are multiple settlement pipes, and the multiple settlement pipes are coaxially arranged and connected in sequence; there are multiple settlement rings, and the settlement rings are in one-to-one correspondence with the settlement pipes.

[0019] Optionally, the top end of the settlement pipe has an upper joint, and the bottom end of the settlement pipe has a lower joint; the upper joint and the lower joint match each other.

[0020] Optionally, the upper joint is a flange located at the top end of the settlement pipe, and the lower joint is a recessed part located at the bottom end of the settlement pipe; the flange and the recessed part match each other.

[0021] Optionally, the upper pipe section includes multiple first sub-pipes connected in sequence, and the lower pipe section includes multiple second sub-pipes connected in sequence; the first sub-pipes and the second sub-pipes are coaxially arranged.

[0022] The beneficial effects that the present utility model can produce include:

[0023] The utility model realizes the limit of the settlement ring by respectively arranging guide grooves and buckles on the settlement pipe and the settlement ring, and uses the pipe wall at the top end of the guide groove on the settlement pipe to prevent the settlement ring from slipping upward due to external force during the installation process, so as to avoid the settlement ring deviating from its preset installation position and ensure the accuracy of installation.

[0024] The utility model sets the settlement ring in a shape that is thin at both ends and thick in the middle. On the one hand, there is no need to set anchor plates, and the protruding part in the middle of the settlement ring can also be tightly connected to the soil after landfill. On the other hand, since there is no need to set anchor plates, the settlement ring will not block the falling of sand during the landfill of the gap, and the falling sand can smoothly slide down along the outer surface of the settlement ring to the lower part of the settlement ring, so that the gap under the settlement ring is filled tightly with sand, thus ensuring the accuracy of settlement monitoring. Brief Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of a settlement monitoring device suitable for installation in a borehole provided by an embodiment of the utility model;

[0026] Figure 2 provided by an embodiment of the utility model Figure 1 Sectional view taken in the direction of A;

[0027] Figure 3 provided by an embodiment of the utility model Figure 1 Sectional view taken in the direction of B;

[0028] Figure 4 Sectional view of the upper ring body provided by an embodiment of the utility model;

[0029] Figure 5 Sectional view of the lower ring body provided by an embodiment of the utility model;

[0030] Figure 6 Sectional view of the flange provided by an embodiment of the utility model;

[0031] Figure 7 Sectional view of the recess provided by an embodiment of the utility model.

[0032] Reference Signs:

[0033] 1. Settlement ring; 2. Settlement pipe; 3. Flange; 4. Recess; 5. Guide groove; 6. Buckle. Detailed Description of the Embodiment

[0034] The following describes the utility model in detail with reference to the embodiments, but the utility model is not limited to these embodiments.

[0035] An embodiment of the utility model provides a settlement monitoring device suitable for installation in a borehole. As Figure 1 shown, the device includes:

[0036] A settlement pipe 2, on the outer wall of which a guide groove 5 is provided along its axial direction; the top end of the guide groove 5 is at a preset length from the top surface of the settlement pipe 2;

[0037] A settlement ring 1, the inner diameter of which matches the outer diameter of the settlement pipe 2; the settlement ring 1 is sleeved on the settlement pipe 2 and is located at the top end of the guide groove 5; a protruding buckle 6 is provided on the inner wall of the settlement ring 1, and the buckle 6 is clamped in the guide groove 5 and can move along the guide groove 5 under the action of an external force.

[0038] Specifically, the settlement pipe 2 may include:

[0039] An upper pipe section;

[0040] A lower pipe section, the top end of which is connected to the bottom end of the upper pipe section, and the outer diameter of which matches the outer diameter of the upper pipe section; the guide groove 5 is provided on the outer wall of the lower pipe section, and the top end thereof penetrates the top surface of the lower pipe section; the settlement ring 1 is sleeved on the top end of the lower pipe section.

[0041] In this embodiment, as Figure 2 and Figure 3 shown, the outer wall of the upper pipe section is a complete toroidal surface, and the guide groove 5 is provided on the outer wall of the lower pipe section.

[0042] In this embodiment, the settlement ring 1 is sleeved at the connection between the upper pipe section and the lower pipe section.

[0043] Specifically, the settlement ring 1 may include:

[0044] An upper ring body, sleeved on the bottom end of the upper pipe section;

[0045] A lower ring body, sleeved on the top end of the lower pipe section; the top end of the lower ring body is connected to the bottom end of the upper ring body, and the inner diameter of the lower ring body matches the inner diameter of the upper ring body; the buckle 6 is provided on the inner wall of the lower ring body.

[0046] In this embodiment, the height of the contact surface when the top end of the buckle 6 contacts the top end of the guide groove 5 is determined as the preset installation height of the settlement ring 1.

[0047] In this embodiment, as Figure 4 and Figure 5 shown, the inner wall of the upper ring body is a complete toroidal surface, and the buckle 6 is provided on the inner wall of the lower ring body.

[0048] Specifically, the upper ring body and the lower ring body have the same thickness, and the top end of the buckle 6 is flush with the top end of the lower ring body.

[0049] Specifically, a plurality of guide grooves 5 are axially provided on the outer wall of the settlement pipe 2, and the plurality of guide grooves 5 are evenly distributed along the circumferential direction of the settlement pipe 2; a plurality of buckles 6 are axially provided on the inner wall of the settlement ring 1, and the plurality of buckles 6 are evenly distributed along the circumferential direction of the settlement ring 1; the plurality of buckles 6 correspond to the plurality of guide grooves 5 one by one.

[0050] In this embodiment, guide grooves 5 and buckles 6 are respectively arranged on the settlement pipe 2 and the settlement ring 1. The pipe wall at the top end of the guide groove 5 on the settlement pipe 2 is used to block the upward sliding of the settlement ring 1 due to external force during the installation process, so as to realize the limit of the settlement ring 1, avoid the settlement ring 1 deviating from its preset installation position, and ensure the accuracy of installation.

[0051] Specifically, the outer diameters of the top end and the bottom end of the settlement ring 1 are both smaller than the outer diameter of the middle part thereof, which is beneficial for the sandy soil to slide down along the upper half surface of the settlement ring 1 to the lower part of the settlement ring 1 during landfill and tightly accumulate under the settlement ring 1.

[0052] Specifically, the external shape of the upper ring body is symmetrical with the external shape of the lower ring body.

[0053] In this embodiment, the shape of the settlement ring 1 can be a spindle.

[0054] In this embodiment, by setting the settlement ring 1 to be thin at both ends and thick in the middle, on the one hand, there is no need to set anchor plates, and the protruding part in the middle of the settlement ring 1 can also be tightly connected with the soil body after landfill; on the other hand, since there is no need to set anchor plates, the sandy soil will not be blocked from falling during the landfill of the gap, and the falling sandy soil can smoothly slide down along the outer surface of the settlement ring 1 to the lower part of the settlement ring 1, so that the gap under the settlement ring 1 is filled and compacted by the sandy soil, thus ensuring the accuracy of settlement monitoring.

[0055] Specifically, there can be multiple settlement pipes 2, and the multiple settlement pipes 2 are coaxially arranged and connected end to end in sequence; there can be multiple settlement rings 1, and the multiple settlement rings 1 are in one-to-one correspondence with the multiple settlement pipes 2.

[0056] In this embodiment, by setting multiple settlement pipes 2 and multiple settlement rings 1, it is convenient to monitor the settlement conditions at different elevations of the soil body.

[0057] Specifically, the top end of the settlement pipe 2 has an upper joint, and the bottom end of the settlement pipe 2 has a lower joint; the upper joint and the lower joint are matched with each other.

[0058] By setting the upper joint and the lower joint, when it is necessary to connect multiple settlement pipes 2 end to end in sequence, the lower joint of the settlement pipe 2 located above can be clamped with the upper joint of the settlement pipe 2 located below, so as to realize the rapid connection of multiple settlement pipes 2.

[0059] Specifically, as shown in Figure 6 and Figure 7 , the upper joint is a flange 3 located at the top end of the settlement pipe 2, and the lower joint is a recessed part 4 located at the bottom end of the settlement pipe 2; the flange 3 and the recessed part 4 are matched with each other.

[0060] Specifically, the upper pipe section may include a plurality of first sub-pipes connected in sequence, and the lower pipe section may include a plurality of second sub-pipes connected in sequence; the first sub-pipes and the second sub-pipes are coaxially arranged.

[0061] By splitting the settlement pipe 2 into a plurality of first sub-pipes and a plurality of second sub-pipes, it is possible to avoid the difficulty in installation caused by the excessive length of the settlement pipe 2, and it is also convenient to adjust the length of the settlement pipe 2 according to the monitoring requirements. During installation, only need to sequentially place a plurality of second sub-pipes and a plurality of first sub-pipes into the borehole and connect them to complete the splicing of the settlement pipe 2.

[0062] The above are only several embodiments of the present application and do not impose any form of limitation on the present application. Although the present application is disclosed above with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art, without departing from the scope of the technical solution of the present application, makes some changes or modifications using the technical content disclosed above, which are equivalent to equivalent implementation cases and all fall within the scope of the technical solution.

Claims

1. A settlement monitoring device suitable for installation in a borehole, characterized in that, The device includes: A sedimentation tube, on the outer wall of which there is a guide groove along its axial direction; the top end of the guide groove is at a preset length from the top surface of the sedimentation tube; A sedimentation ring, the inner diameter of which matches the outer diameter of the sedimentation tube; the sedimentation ring is sleeved on the sedimentation tube and is located at the top end of the guide groove; on the inner wall of the sedimentation ring, there are protruding buckles, and the buckles are clamped in the guide groove and can move along the guide groove under the action of an external force.

2. The device according to claim 1, wherein The sedimentation tube includes: An upper pipe section; A lower pipe section, the top end of which is connected to the bottom end of the upper pipe section, and the outer diameter of which matches the outer diameter of the upper pipe section; the guide groove is opened on the outer wall of the lower pipe section, and the top end thereof penetrates the top surface of the lower pipe section; the sedimentation ring is sleeved on the top end of the lower pipe section.

3. The device according to claim 2, characterized in that The sedimentation ring is sleeved at the connection between the upper pipe section and the lower pipe section.

4. The device according to claim 3, characterized in that, The sedimentation ring includes: An upper ring body, sleeved on the bottom end of the upper pipe section; A lower ring body, sleeved on the top end of the lower pipe section; the top end of the lower ring body is connected to the bottom end of the upper ring body, and the inner diameter of the lower ring body matches the inner diameter of the upper ring body; the buckles are arranged on the inner wall of the lower ring body.

5. The device according to claim 4, characterized in that, The outer diameters of the top end and the bottom end of the sedimentation ring are both smaller than the outer diameter of the middle part thereof.

6. The device according to claim 5, characterized in that, The shape of the sedimentation ring is a spindle.

7. The device according to claim 1, characterized in that, There are multiple sedimentation tubes, and the multiple sedimentation tubes are coaxially arranged and connected in sequence; there are multiple sedimentation rings, and the sedimentation rings are in one-to-one correspondence with the sedimentation tubes.

8. The device according to claim 7, wherein, The top end of the sedimentation tube has an upper joint, and the bottom end of the sedimentation tube has a lower joint; the upper joint and the lower joint are matched with each other.

9. The device according to claim 8, characterized in that, The upper joint is a flange located at the top end of the sedimentation tube, and the lower joint is a recessed part located at the bottom end of the sedimentation tube; the flange and the recessed part are matched with each other.

10. The device according to claim 2, characterized in that, The upper pipe section includes multiple first sub-tubes connected in sequence, and the lower pipe section includes multiple second sub-tubes connected in sequence; the first sub-tubes and the second sub-tubes are coaxially arranged.

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