Tunnel monitoring and measuring temporary point arrangement device

Abstract

The utility model provides a kind of tunnel monitoring measurement temporary measuring point arrangement device, including telescopic link, the end of telescopic link is detachably provided with connecting column, and hollow bolt is screwed on connecting column, first limit frame is arranged on hollow bolt, and L-shaped plate is overlapped on the end of hollow bolt, one end of L-shaped plate is slidably clamped in first limit frame, reflective sheet is arranged on the side of L-shaped plate, adhesive material is arranged on the top surface of L-shaped plate, limiting nail is penetrated on L-shaped plate, and limiting nail is penetrated in hollow bolt.The device can quickly complete measuring point arrangement, and the whole arrangement process does not need to climb operation, also does not need tedious operation and preparation work, single person can complete measuring point arrangement work, greatly improves work efficiency, reduces work risk.

Description

Technical Field

[0001] This utility model specifically relates to a temporary measuring point arrangement device for tunnel monitoring and measurement. Background Technology

[0002] In the monitoring and measurement work of tunnel or storage construction, it is necessary to collect data on chamber settlement and convergence deformation by arranging total station reflectors at relevant locations in the tunnel. This is a key link to ensure construction safety.

[0003] Due to differences in the purpose of the tunnel and the surrounding rock conditions, support operations are often relatively delayed in high-quality surrounding rock environments. For bare rock areas closest to the tunnel face where initial support has not been implemented in a timely manner, monitoring points must be set up as soon as possible to promptly grasp the deformation dynamics of the cross-section. However, since these monitoring points will be covered by the support structure later and the monitoring cycle is short, temporary monitoring points will also be set up for monitoring.

[0004] However, currently, when setting up temporary monitoring points, most of the work requires staff to use aerial work platforms to carry out the work at height. Since the working face area is in a dynamic deformation stage and there are occasional rockfalls, the work at height will further increase the safety risks to personnel. In addition, the work at height is complicated, the working space in the chamber is limited, and the work of the on-site construction team will be affected when there is cross-operation. This not only consumes a long deployment time, but also directly leads to the low overall deployment efficiency of temporary monitoring points, making it difficult to meet the needs of timely monitoring in the bare rock area. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model proposes a temporary measuring point arrangement device for tunnel monitoring and measurement, in order to solve the technical problems mentioned in the background art, which are that the current arrangement of temporary measuring points mostly requires workers to climb to heights, which is risky, time-consuming, and inefficient.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a temporary measuring point arrangement device for tunnel monitoring and measurement, comprising: Telescopic pole; A connecting column is detachably installed at the end of the telescopic rod and is screwed with a hollow bolt, on which a first limiting bracket is installed; An L-shaped plate, one end of which overlaps the end of the hollow bolt, and the other end which is slidably locked within the first limiting frame; a reflective sheet is provided on one side of the L-shaped plate, and adhesive material is provided on the top surface of the L-shaped plate; and The limiting pin passes through the L-shaped plate and is inserted into the hollow bolt.

[0007] In a preferred embodiment, a threaded post is provided at the bottom of the connecting post, and the threaded post is screwed to the end of the telescopic rod. The telescopic rod is a commonly used carbon telescopic rod, and its length is selected according to the height of the tunnel cross section.

[0008] In a preferred embodiment, two sets of spaced-apart first limiting bolts are screwed onto the hollow bolt, and a first mounting ring is provided on the first limiting frame, which is engaged between the two sets of first limiting bolts.

[0009] In a preferred embodiment, a hollow mounting sleeve is provided on the hollow bolt, the hollow mounting sleeve can swing along one end, and a second limiting bracket is provided on both sides of the hollow mounting sleeve.

[0010] In a preferred embodiment, a second limiting bolt is screwed onto the hollow bolt, and a second mounting ring is engaged between the second limiting bolt and the connecting column. The end of the hollow mounting sleeve is rotatably mounted on the second mounting ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In use, the connecting column is assembled onto the telescopic rod, and an L-shaped plate with reflective strips is overlapped on top of a hollow bolt. Adhesive material is applied to the top of the L-shaped plate. The first limiting frame limits the two sides of the L-shaped plate to prevent lateral swaying. Then, a limiting pin is inserted through the L-shaped plate and into the hollow bolt to limit the longitudinal movement of the L-shaped plate. The telescopic rod is then extended to lift the L-shaped plate to a higher position, and the L-shaped plate is then bonded to the location of the measuring point using adhesive material. This allows for rapid measurement point placement without the need for climbing or complicated operations and preparations. A single person can complete the measurement point placement work, greatly improving work efficiency and reducing work risks. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0013] Figure 1 A three-dimensional structural diagram of a temporary measuring point arrangement device for tunnel monitoring and measurement provided by this utility model; Figure 2 This is a partial structural cross-sectional view of a temporary measuring point arrangement device for tunnel monitoring and measurement according to the present invention.

[0014] Figure label: 1. Telescopic pole; 2. Connecting column; 3. Threaded column; 4. Hollow bolt; 5. First limit bolt; 6. First mounting ring; 7. First limit frame; 8. L-shaped plate; 9. Reflector; 10. Limiting pin; 11. Second limit bolt; 12. Second mounting ring; 13. Hollow mounting sleeve; 14. Second limit frame. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0016] Example: like Figure 1 , 2 As shown, this utility model provides a temporary measuring point arrangement device for tunnel monitoring and measurement, including a telescopic rod 1, a connecting column 2 detachably provided at the end of the telescopic rod 1, a hollow bolt 4 screwed onto the connecting column 2, a first limiting frame 7 provided on the hollow bolt 4, an L-shaped plate 8 overlapping the end of the hollow bolt 4, one end of the L-shaped plate 8 being slidably locked in the first limiting frame 7, a reflector 9 provided on one side of the L-shaped plate 8, an adhesive material provided on the top surface of the L-shaped plate 8, and a limiting nail 10 penetrating the L-shaped plate 8 and passing through the hollow bolt 4.

[0017] A threaded post 3 is provided at the bottom of the connecting post 2. The threaded post 3 is screwed to the end of the telescopic rod 1. The end connection port is the M8 screw connection base of the telescopic rod 1. The installation of the connecting post 2 can be completed quickly through the arrangement of the threaded post 3. In use, the connecting post 2 is connected to the telescopic rod 1. Then, one end of the L-shaped plate 8 with reflector 9 to be installed is overlapped on the top of the hollow bolt 4, and the other end is locked in the first limiting frame 7. The first limiting frame 7 limits the two ends of the L-shaped plate 8 to prevent the L-shaped plate 8 from shifting laterally. Then, the limiting nail 10 is inserted through the L-shaped plate 8 and into the hollow bolt 4. The limiting nail 10 is a traditional nail with a length of about 30~40mm. One end of the nail has a diameter larger than the hole opened on the L-shaped plate 8, thereby limiting the position of the L-shaped plate 8 and preventing the L-shaped plate 8 from falling off the hollow bolt, thus completing the installation of the reflector 9. Then, the telescopic rod 1 is extended to lift the L-shaped plate 8 to the monitoring position. The top surface of the L-shaped plate 8 is provided with adhesive material to be attached to the surrounding rock of the arch. After the adhesive material has initially cured, the initial data acquisition can be carried out. The L-shaped plate 8 can be fixed at the monitoring point by the adhesive material to be used as a temporary measuring point.

[0018] like Figure 2As shown, in this embodiment, two sets of spaced-apart first limiting bolts 5 are screwed onto the hollow bolt 4, and a first mounting ring 6 is provided on the first limiting frame 7. The first mounting ring 6 is engaged between the two sets of first limiting bolts 5. The height of the first mounting ring 6 can be adjusted by rotating the two sets of first limiting bolts 5 to allow them to slide on the hollow bolt 4, thereby facilitating lateral limiting of L-shaped plates 8 of different lengths.

[0019] like Figure 2 As shown, in this embodiment, a hollow mounting sleeve 13 is provided on the hollow bolt 4. The hollow mounting sleeve 13 can swing along one end, and a second limiting bracket 14 is provided on both sides of the hollow mounting sleeve 13. A second limiting bolt 11 is screwed onto the hollow bolt 4, and a second mounting ring 12 is engaged between the second limiting bolt 11 and the connecting column 2. The end of the hollow mounting sleeve 13 is rotatably mounted on the second mounting ring 12.

[0020] One end of the L-shaped plate 8 can be overlapped inside the hollow mounting sleeve 13, and one end of the L-shaped plate 8 can be locked inside the second limiting frame 14. Then, the limiting nail 10 is inserted through the L-shaped plate 8 and into the hollow mounting sleeve 13. The hollow mounting sleeve 13 is then rotated according to the angle of the construction surface where the monitoring point is located. The angle is adjusted according to the required position of the side wall measuring point. When installing measuring points on the left and right side walls, one end of the reflector 9 is slidably locked into the corresponding second limiting frame 14 according to the required direction of the measuring point. The reflector 9 can then be fixed on the inclined surface or side wall. This device is suitable for installing measuring points near the arch line of the side wall of straight wall and curved wall tunnels (straight wall and curved wall chambers), thus improving the applicability of the device.

[0021] The specific usage and beneficial effects of this utility model are as follows: When in use, the connecting column 2 is assembled onto the telescopic rod 1, and the L-shaped plate 8 with reflector 9 is overlapped on the top of the hollow bolt 4. The top of the L-shaped plate 8 is coated with adhesive material. The first limiting frame 7 limits the two sides of the L-shaped plate 8 to prevent lateral swaying. The limiting nail 10 passes through the L-shaped plate 8 and is inserted into the hollow bolt 4 to limit the longitudinal movement of the L-shaped plate 8. The telescopic rod 1 is then extended to lift the L-shaped plate 8 to a high position, and the L-shaped plate 8 is bonded to the monitoring position with adhesive material. The measurement point can be quickly set up, and the entire setup process does not require climbing or complicated operations and preparations. A single person can complete the measurement point setup, which greatly improves work efficiency and reduces work risks.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above. Modifications or improvements can be made to this utility model, which is obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this utility model fall within the scope of protection claimed by this utility model.

Claims

1. A temporary measuring point arrangement device for tunnel monitoring and measurement, characterized in that, Including: Telescopic pole (1); The connecting column (2) is detachably installed at the end of the telescopic rod (1) and is screwed with a hollow bolt (4). A first limiting frame (7) is installed on the hollow bolt (4). An L-shaped plate (8) has one end attached to the end of the hollow bolt (4) and the other end slidably locked inside the first limiting frame (7). A reflective sheet (9) is provided on one side of the L-shaped plate (8), and adhesive material is provided on the top surface of the L-shaped plate (8). The limiting pin (10) passes through the L-shaped plate (8) and is inserted into the hollow bolt (4).

2. The temporary measuring point arrangement device for tunnel monitoring and measurement according to claim 1, characterized in that: The bottom of the connecting column (2) is provided with a threaded column (3), which is screwed to the end of the telescopic rod (1).

3. The temporary measuring point arrangement device for tunnel monitoring and measurement according to claim 1, characterized in that: Two sets of first limiting bolts (5) are screwed onto the hollow bolt (4) at intervals. A first mounting ring (6) is provided on the first limiting frame (7). The first mounting ring (6) is locked between the two sets of first limiting bolts (5).

4. The temporary measuring point arrangement device for tunnel monitoring and measurement according to claim 1, characterized in that: A hollow mounting sleeve (13) is provided on the hollow bolt (4). The hollow mounting sleeve (13) can swing along one end. A second limit frame (14) is provided on both sides of the hollow mounting sleeve (13).

5. The temporary measuring point arrangement device for tunnel monitoring and measurement according to claim 4, characterized in that: A second limiting bolt (11) is screwed onto the hollow bolt (4), and a second mounting ring (12) is engaged between the second limiting bolt (11) and the connecting column (2). The end of the hollow mounting sleeve (13) is rotatably mounted on the second mounting ring (12).

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