Surrounding rock deformation monitoring device for shallow-buried tunnel construction

Abstract

The utility model relates to the technical field of tunnel construction, and discloses a surrounding rock deformation monitoring device for shallow-buried tunnel construction, which comprises a fixing frame, and a supporting rod is hinged to the edge of the bottom of the fixing frame. Through the arrangement of the telescopic rod, the sliding groove, the rectangular groove, the spring and the clamping block, the clamping block is pressed firstly, the clamping block overcomes the elastic force effect of the spring and retracts into the spring, at the moment, the fixing effect on the telescopic rod is relieved, meanwhile, the telescopic rod is pulled outwards, the telescopic rod drives the clamping block to rotate under the limiting effect of the sliding groove, and therefore the clamping block is fixed. The telescopic rods extend outwards along the interiors of the supporting rods, and when the telescopic rods move to the needed positions, the clamping blocks move outwards under the elastic force action of springs and extend out of the interiors of the corresponding rectangular grooves again, so that the telescopic rods are fixed, segmented extension of the multiple telescopic rods is achieved, and therefore the device can be used in various complex terrains. And the horizontal posture of the total station body is always ensured.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and more specifically, to a device for monitoring the deformation of surrounding rock in shallow-buried tunnel construction. Background Technology

[0002] Surrounding rock deformation monitoring measures displacement and stress changes in the rock mass surrounding the tunnel in real time or periodically to promptly grasp the stability status of the surrounding rock, providing early warning and decision-making basis for engineering safety. Monitoring data can help evaluate the rationality of tunnel design schemes, optimize construction technology, prevent disasters such as surrounding rock collapse and deformation, and ensure construction and operation safety. At the same time, long-term monitoring can also provide a scientific basis for tunnel maintenance and management, extend service life, reduce maintenance costs, and is of great significance to ensuring the sustainability and safety of tunnel projects.

[0003] During the construction of shallow-buried tunnels, operators often use corresponding surrounding rock deformation monitoring devices to monitor the deformation of the surrounding rock. Common monitoring devices on the market generally use total stations for surrounding rock deformation monitoring. However, in actual use, although such monitoring devices have basic monitoring functions, the support structure of the monitoring device itself is relatively simple and can only serve a supporting function. When encountering monitoring environments with uneven terrain and poor topography, it is often difficult to ensure the horizontal attitude of the total station, which can easily affect the statistical data of subsequent monitoring results. Therefore, it is necessary to improve it. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a surrounding rock deformation monitoring device for shallow buried tunnel construction, which has the advantage of adapting to complex terrain.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rock deformation monitoring device for shallow-buried tunnel construction, comprising a fixed frame, a support rod hinged to the bottom edge of the fixed frame, a telescopic rod movably sleeved inside the support rod, a sliding groove formed at the top of the inner cavity of the support rod, the outer surface of the telescopic rod movably connected to the inside of the sliding groove, a rectangular groove evenly formed at the bottom right side of the outer surface of the support rod, a spring fixedly installed on the left side of the inner surface of the spring, a locking block fixedly connected to the right side of the spring, and the outer surface of the locking block movably connected to the telescopic rod and the inside of the rectangular groove respectively.

[0006] As a preferred embodiment of this utility model, the bottom of the telescopic rod is hinged with a support foot, and the bottom of the support foot is rough.

[0007] As a preferred embodiment of this utility model, a fixing plate is fixedly connected to both the front and rear sides of the inner cavity of the fixing frame, a motor is fixedly connected to the back of the fixing plate, and a threaded rod is fixedly sleeved at the other end of the motor output shaft.

[0008] As a preferred embodiment of this utility model, the other end of the threaded rod passes through the fixed plate and extends into the interior of the fixed plate and is movably sleeved with the interior of the fixed plate, and a moving block is threaded onto the outer surface of the threaded rod.

[0009] As a preferred embodiment of this utility model, a limiting groove is provided at the bottom of the inner cavity of the fixing frame, and the inside of the limiting groove is movably connected to the outer surface of the moving block.

[0010] As a preferred embodiment of this utility model, the moving block is hinged with diagonal rods on both the left and right sides, and a connecting plate is hinged to the other end of the diagonal rods.

[0011] As a preferred technical solution of this utility model, the top left and right sides of the fixing frame are provided with transverse grooves, the inside of the transverse grooves are movably connected to the outer surface of the connecting plate, the top left and right sides of the fixing frame are movably connected with clamping plates, the bottom of the clamping plates are fixedly connected to the top of the connecting plate, the inner side of the clamping plates is movably connected with a base, and the top of the base is movably sleeved with the total station body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting up a telescopic rod, a sliding groove, a rectangular groove, a spring, and a locking block, first presses the locking block, causing it to overcome the elastic force of the spring and retract into the spring. At this time, the fixing effect on the telescopic rod is released. Simultaneously, the telescopic rod is pulled outward, causing the telescopic rod to drive the locking block to extend outward along the inside of the support rod under the limiting action of the sliding groove. When the telescopic rod moves to the desired position, the locking block will move outward under the elastic force of the spring and extend outward again into the corresponding rectangular groove, thereby achieving the fixing effect on the telescopic rod. This realizes the segmented extension of multiple telescopic rods, thus enabling the device to maintain the horizontal attitude of the total station body in various complex terrains.

[0014] 2. This utility model, by setting a limiting groove, inclined rods, connecting plates, horizontal grooves, and clamping plates, causes the threaded rod to rotate when the motor is started, and the moving block to move horizontally forward under the limiting action of the limiting groove. This causes the two inclined rods to move. At this time, due to the elastic force of the horizontal groove, the two inclined rods will squeeze and push the two connecting plates and clamping plates, causing them to move horizontally in opposite directions. This releases the fixing effect on the base and the total station body, realizing the function of easy disassembly and assembly of the total station body. No special tools are required for disassembly and assembly by the operator, reducing the labor intensity of the operator and improving the efficiency of the operator in disassembling and assembling the total station body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the threaded rod of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the fixing frame of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the telescopic rod of this utility model;

[0019] Figure 5 This is a cross-sectional view of the motor of this utility model.

[0020] In the diagram: 1. Fixed frame; 2. Support rod; 3. Telescopic rod; 4. Slide groove; 5. Rectangular groove; 6. Spring; 7. Locking block; 8. Support foot; 9. Fixed plate; 10. Motor; 11. Threaded rod; 12. Moving block; 13. Limiting groove; 14. Diagonal rod; 15. Connecting plate; 16. Horizontal groove; 17. Clamping plate; 18. Base; 19. Total station body. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 5As shown, this utility model provides a rock deformation monitoring device for shallow tunnel construction, including a fixed frame 1, a support rod 2 hinged to the bottom edge of the fixed frame 1, a telescopic rod 3 movably sleeved inside the support rod 2, a groove 4 opened at the top of the inner cavity of the support rod 2, the outer surface of the telescopic rod 3 movably connected to the inside of the groove 4, a rectangular groove 5 evenly opened at the bottom right side of the outer surface of the support rod 2, a spring 6 fixedly installed on the left side of the inner surface of the spring 6, a locking block 7 fixedly connected to the right side of the spring 6, and the outer surface of the locking block 7 movably connected to the telescopic rod 3 and the inside of the rectangular groove 5 respectively.

[0023] When the extension length of the telescopic rod 3 needs to be adjusted to adapt to complex terrain, the operator first needs to press the locking block 7, so that the locking block 7 overcomes the elastic force of the spring 6 and retracts into the interior of the spring 6. At this time, the fixing effect on the telescopic rod 3 will be released. At the same time, the telescopic rod 3 is pulled outward, so that the telescopic rod 3 drives the locking block 7 to extend outward along the interior of the support rod 2 under the limiting action of the slide groove 4. When the telescopic rod 3 moves to the desired position, the locking block 7 will move outward under the elastic force of the spring 6 and extend outward again into the interior of the corresponding rectangular groove 5, thereby achieving the fixing effect on the telescopic rod 3.

[0024] The bottom of the telescopic rod 3 is hinged with a support foot 8, and the bottom of the support foot 8 is rough.

[0025] This design improves the connection between the support leg 8 and the ground, preventing the entire device from tipping over when placed on water or a slippery surface.

[0026] Among them, the front and rear sides of the inner cavity of the fixed frame 1 are fixedly connected to the fixed plate 9, the back of the fixed plate 9 is fixedly connected to the motor 10, and the other end of the output shaft of the motor 10 is fixedly sleeved with the threaded rod 11.

[0027] When the motor 10 starts running, it will cause the threaded rod 11 to rotate.

[0028] The other end of the threaded rod 11 passes through the fixed plate 9 and extends into the interior of the fixed plate 9 and is movably sleeved with the interior of the fixed plate 9. The outer surface of the threaded rod 11 is threaded with a moving block 12.

[0029] When the threaded rod 11 starts to rotate, it will cause the moving block 12 to move back and forth.

[0030] The bottom of the inner cavity of the fixed frame 1 is provided with a limiting groove 13, and the inside of the limiting groove 13 is movably connected to the outer surface of the moving block 12.

[0031] Due to the limiting effect of the limiting groove 13, the moving block 12 will move horizontally back and forth.

[0032] The moving block 12 has a diagonal rod 14 hinged to both its left and right sides, and a connecting plate 15 hinged to the other end of the diagonal rod 14.

[0033] When the moving block 12 moves forward, it will cause the two diagonal rods 14 to move, and the diagonal rods 14 will squeeze and push the connecting plate 15, thereby causing the two connecting plates 15 to move in opposite directions.

[0034] The top left and right sides of the fixed frame 1 are provided with horizontal grooves 16. The inside of the horizontal grooves 16 is movably connected to the outer surface of the connecting plate 15. The top left and right sides of the fixed frame 1 are movably connected with clamping plates 17. The bottom of the clamping plates 17 is fixedly connected to the top of the connecting plate 15. The inner side of the clamping plates 17 is movably connected with a base 18. The top of the base 18 is movably sleeved with the total station body 19.

[0035] Due to the limiting effect of the transverse groove 16, the two connecting plates 15 will drive the two clamping plates 17 to move horizontally in opposite directions, thereby releasing the fixing effect on the base 18 and the total station body 19.

[0036] Working principle and usage process of this utility model:

[0037] When monitoring terrain that is unfavorable and the length of the telescopic rod 3 needs to be adjusted, the operator first needs to press the locking block 7, so that the locking block 7 overcomes the elastic force of the spring 6 and retracts into the interior of the spring 6. At this time, the fixing effect on the telescopic rod 3 will be released. At the same time, the telescopic rod 3 is pulled outward, so that the telescopic rod 3 drives the locking block 7 to extend outward along the interior of the support rod 2 under the limiting action of the slide groove 4. When the telescopic rod 3 moves to the desired position, the locking block 7 will move outward under the elastic force of the spring 6 and extend outward again into the interior of the corresponding rectangular groove 5, thereby achieving the fixing effect on the telescopic rod 3. This realizes the segmented extension of multiple telescopic rods 3, so that the device can always maintain the horizontal attitude of the total station body 19 under various complex terrains.

[0038] When the monitoring operation is completed and the total station body 19 needs to be removed, the motor 10 is started, which causes the threaded rod 11 to rotate and the moving block 12 to move horizontally forward under the limiting action of the limiting groove 13. This causes the two inclined rods 14 to move. At this time, due to the elastic force of the transverse groove 16, the two inclined rods 14 will squeeze and push the two connecting plates 15 and the clamping plate 17, causing them to move horizontally in opposite directions. This releases the fixing effect on the base 18 and the total station body 19, realizing the function of easy disassembly and assembly of the total station body 19. No special tools are required for disassembly and assembly by the operator, reducing the labor intensity of the operator and improving the efficiency of the operator in disassembling and assembling the total station body 19.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring the deformation of surrounding rock during shallow tunnel construction, comprising a fixing frame (1), characterized in that: A support rod (2) is hinged to the bottom edge of the fixed frame (1). A telescopic rod (3) is movably sleeved inside the support rod (2). A groove (4) is opened at the top of the inner cavity of the support rod (2). The outer surface of the telescopic rod (3) is movably connected to the inside of the groove (4). A rectangular groove (5) is evenly opened at the bottom right side of the outer surface of the support rod (2). A spring (6) is fixedly installed on the left side of the inner surface of the support rod (2). A locking block (7) is fixedly connected to the right side of the spring (6). The outer surface of the locking block (7) is movably connected to the telescopic rod (3) and the inside of the rectangular groove (5).

2. The surrounding rock deformation monitoring device for shallow tunnel construction according to claim 1, characterized in that: The bottom of the telescopic rod (3) is hinged with a support foot (8), and the bottom of the support foot (8) is rough.

3. The surrounding rock deformation monitoring device for shallow tunnel construction according to claim 1, characterized in that: The front and rear sides of the inner cavity of the fixed frame (1) are fixedly connected to a fixed plate (9), the back side of the fixed plate (9) is fixedly connected to a motor (10), and the other end of the output shaft of the motor (10) is fixedly sleeved with a threaded rod (11).

4. The surrounding rock deformation monitoring device for shallow tunnel construction according to claim 3, characterized in that: The other end of the threaded rod (11) passes through the fixed plate (9) and extends into the interior of the fixed plate (9) and is movably sleeved with the interior of the fixed plate (9). The outer surface of the threaded rod (11) is threaded with a moving block (12).

5. The surrounding rock deformation monitoring device for shallow tunnel construction according to claim 1, characterized in that: The bottom of the inner cavity of the fixed frame (1) is provided with a limiting groove (13), and the inside of the limiting groove (13) is movably connected to the outer surface of the moving block (12).

6. The surrounding rock deformation monitoring device for shallow tunnel construction according to claim 4, characterized in that: The moving block (12) is hinged to diagonal rods (14) on both the left and right sides, and a connecting plate (15) is hinged to the other end of the diagonal rods (14).

7. The surrounding rock deformation monitoring device for shallow tunnel construction according to claim 1, characterized in that: The top left and right sides of the fixed frame (1) are provided with transverse grooves (16). The inside of the transverse grooves (16) is movably connected to the outer surface of the connecting plate (15). The top left and right sides of the fixed frame (1) are movably connected with clamping plates (17). The bottom of the clamping plates (17) is fixedly connected to the top of the connecting plate (15). The inner side of the clamping plates (17) is movably connected with a base (18). The top of the base (18) is movably sleeved with the total station body (19).

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