Tunnel embedded channel inspection and correction platform

Abstract

The utility model discloses a tunnel pre-buried channel inspection and correction platform, which comprises an inspection unit, a correction unit and a correction unit, the inspection unit comprises supporting legs and an arc-shaped table, the arc-shaped table is arranged on the supporting legs, and the arc shape of the upper end face of the arc-shaped table is the same as that of a pre-buried channel; the correction unit comprises an arc-shaped frame and adjusting bolts, the arc-shaped frame is erected on the arc-shaped table, the multiple adjusting bolts are in threaded connection to the arc-shaped frame at intervals in an arc shape, and the axial direction of the adjusting bolts is the same as the radial direction of the arc-shaped table; by arranging the checking unit and the correcting unit, due to the fact that the arc shape of the arc-shaped table is matched with the arc shape of the pre-buried channel, the pre-buried channel is placed on the arc-shaped table in the checking process, and if the channel can be tightly attached to the arc-shaped table, it is indicated that the channel does not deform, and the structural size meets the design requirement; otherwise, the pre-buried channel can be placed on the arc-shaped table, and the pre-buried channel is tightly attached to the arc-shaped table by screwing the adjusting bolt through an electric wrench, so that correction of the pre-buried channel is achieved.

Description

Technical Field

[0001] The utility model relates to a checking and correcting platform for tunnel embedded channels, belonging to the technical field of tunnel embedded channel detection. Background Art

[0002] In the construction of railway tunnels, the embedded channel for catenary is a very crucial process, and its embedded installation quality directly affects the subsequent use of the catenary. During the processing, transportation and storage of the embedded channel for catenary, it will be deformed to a certain extent due to various reasons, resulting in its inability to be closely attached to the formwork during the installation process. After the formwork is removed, part or the whole is embedded too deep into the concrete, thus affecting the later use, not meeting the installation requirements, and the treatment or rectification cost is high. Therefore, before using the channel, it is necessary to verify its dimensions in advance and measure whether there is deformation. The traditional detection method is to use a steel tape to measure the inner arc length, chord length and chord height of the channel to determine whether the channel dimensions meet the requirements. However, the detection process using a steel tape is cumbersome and inefficient. Content of the Utility Model

[0003] Based on the above, the utility model provides a checking and correcting platform for tunnel embedded channels to overcome the deficiencies of the prior art.

[0004] The technical solution of the utility model is: a checking and correcting platform for tunnel embedded channels, comprising:

[0005] A checking unit, including legs and an arc-shaped platform, the arc-shaped platform is arranged on the legs, and the upper end surface arc of the arc-shaped platform is the same as the arc of the embedded channel;

[0006] A correcting unit, including an arc-shaped frame and adjusting bolts, the arc-shaped frame is erected on the arc-shaped platform, and a plurality of the adjusting bolts are threadedly connected to the arc-shaped frame at arc-shaped intervals, and the axial direction of the adjusting bolts is the same as the radial direction of the arc-shaped platform.

[0007] In one example, supporting plates are arranged on both sides of the arc-shaped platform, walking mechanisms are arranged on both sides of the arc-shaped frame, and the walking mechanisms can be slidably installed on the supporting plates.

[0008] In one example, the walking mechanism includes an upper supporting plate, a lower supporting plate, a connecting plate and rollers, the upper supporting plate is connected to the end of the arc-shaped frame, the connecting plate is located outside the supporting plate and its two ends are respectively connected to the upper supporting plate and the lower supporting plate, and the rollers are installed at the bottom of the upper supporting plate and the upper part of the lower supporting plate.

[0009] In one example, fixing plates are arranged on both sides of the connecting plate, fixing holes are arranged on the fixing plates, jacking holes are arranged on the outer end surfaces of the corresponding supporting plates, and pins are installed in the fixing holes and the jacking holes to fix the arc-shaped frame on the arc-shaped platform.

[0010] In one example, there are at least two arc-shaped frames, which are respectively arranged on both sides of the arc-shaped table.

[0011] In one example, baffles are provided at both ends of the supporting plate.

[0012] In one example, a handle is provided on the arc-shaped frame.

[0013] In one example, a cushion block is provided at the end of the adjusting bolt.

[0014] The beneficial effects of the utility model are as follows: through the provided inspection unit and correction unit, since the arc of the arc-shaped table matches the arc of the embedded channel, when inspecting, the embedded channel is placed on the arc-shaped table. If the channel can be closely attached to the arc-shaped table (the gap ≤ 5 mm), it indicates that the channel has not deformed and the structural dimensions meet the design requirements. If the channel does not meet the foregoing requirements, it can be placed on the arc-shaped table, and the adjusting bolt is screwed by an electric wrench so that the end of the adjusting bolt presses against the embedded channel, tightly fitting the embedded channel on the arc-shaped table, thereby realizing the correction of the deformed embedded channel, which has the characteristics of simple and fast operation. Description of the Drawings

[0015] Figure 1 It is a perspective view of the inspection and correction platform for the tunnel embedded channel;

[0016] Figure 2 It is a front view of the inspection and correction platform for the tunnel embedded channel;

[0017] Figure 3 It is a schematic diagram of the arc-shaped frame;

[0018] Figure 4 It is a schematic diagram of the traveling mechanism;

[0019] Figure 5 It is a schematic diagram of the inspection and correction platform for the tunnel embedded channel with two groups of arc-shaped frames;

[0020] Description of the Reference Numerals:

[0021] Inspection unit: 11 legs, 12 arc-shaped tables;

[0022] Correction unit: 21 arc-shaped frames, 22 adjusting bolts, 23 supporting plates, 24 traveling mechanisms, 25 baffles, 26 handles, 27 cushion blocks;

[0023] 241 upper supporting plate, 242 lower supporting plate, 243 connecting plate, 244 rollers, 245 fixing plates, 246 pins. Detailed Implementation Modes

[0024] To make the above - mentioned objects, features and advantages of the present utility model more obvious and understandable, the following will describe the specific embodiments of the present utility model in detail with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] Please refer to Figures 1 to 5 , in this embodiment, a tunnel embedded channel inspection and correction platform includes an inspection unit and a correction unit. The inspection unit includes legs 11 and an arc - shaped platform 12. The arc - shaped platform 12 is installed on multiple legs 11. The upper - end arc of the arc - shaped platform 12 is the same as the arc of the embedded channel, and its length is slightly longer than the length of the embedded channel. The correction unit includes an arc - shaped frame 21 and adjusting bolts 22. The arc - shaped frame 21 is erected on the arc - shaped platform 12. The arc - shaped frame 21 has a predetermined distance from the arc - shaped platform 12. Multiple adjusting bolts 22 are thread - connected at intervals in an arc shape on the arc - shaped frame 21, and the axial direction of the adjusting bolts 22 is set to be the same as the radial direction of the arc - shaped platform 12.

[0026] Since the arc of the arc - shaped platform 12 matches the arc of the embedded channel, when inspecting, the embedded channel is placed on the arc - shaped platform 12. If the channel can be closely attached to the arc - shaped platform 12 (gap ≤ 5 mm), it indicates that the channel has not been deformed and the structural dimensions meet the design requirements. If the channel does not meet the above requirements, it can be placed on the arc - shaped platform 12, and the adjusting bolts 22 are rotated by an electric wrench so that the ends of the adjusting bolts 22 press against the embedded channel, tightly fitting the embedded channel on the arc - shaped platform 12, thereby realizing the correction of the embedded channel.

[0027] For the convenience of operation, support plates 23 are connected to both sides of the arc - shaped platform 12. Walking mechanisms 24 are provided on both sides of the arc - shaped frame 21. The walking mechanisms 24 can be slidably installed on the support plates 23. The walking mechanisms 24 include upper support plates 241, lower support plates 242, connecting plates 243 and rollers 244. The upper support plates 241 are connected to the ends of the arc - shaped frame 21. The connecting plates 243 are located outside the support plates 23 and are respectively connected to the upper support plates 241 and the lower support plates 242 at both ends. The lower support plates 242 are located below the support plates 23. Multiple rollers 244 are installed at the bottom of the upper support plates 241 and the upper part of the lower support plates 242. The rollers 244 are in contact with the support plates 23. The movement of the walking mechanisms 24 can be realized through the rollers 244, and then the movement of the arc - shaped frame 21 is driven. During inspection, the arc - shaped platform 12 can be moved to the middle position of the arc - shaped platform 12, and both sides can be used as the detection positions for the embedded channel.

[0028] To ensure the calibration effect, fixing plates 245 are provided on both sides of the connecting plate 243. Fixing holes are provided on the fixing plates 245, and corresponding jacks are provided on the outer end faces of the supporting plates 23. A pin 246 is installed in the fixing holes and the jacks to fix the arc-shaped frame 21 to the arc-shaped table 12. During calibration, the arc-shaped frame 21 can be fixed at the end by the pin 246.

[0029] To improve the detection efficiency, at least two arc-shaped frames 21 are provided, which are respectively installed on both sides of the arc-shaped table 12, and detection and calibration operations can be carried out on both sides of the arc-shaped table 12.

[0030] To prevent the traveling mechanism 24 from detaching from the supporting plate 23, baffles 25 are installed at both ends of the supporting plate 23. To facilitate operation, a handle 26 is provided on the arc-shaped frame 21. To reduce the damage to the embedded channel by the adjusting bolt 22 during calibration, a cushion block 27 is installed at the end of the adjusting bolt 22, and the cushion block 27 can be a flexible rubber block.

[0031] Engineering case: Mangkangshan Tunnel of Sichuan-Tibet Railway. The import mileage of Mangkangshan Tunnel is D2K839+510, the export mileage is D2K870+210, with a total length of 30,700 m. It is located in Wangka Township, Chaya County, Changdu City, Tibet Autonomous Region. The import is located in Wangka Township, Chaya County, and the import section is adjacent to the Chaya left and right line special bridges. There is National Highway 214 at the export end. The altitude of the tunnel import is 3,743 m, the altitude of the export is 3,280 m, and the maximum buried depth of the tunnel is 1,180 m. Since the embedded channels of Mangkangshan Tunnel have been constructed using crossbow-type elastic positioners, this calibration platform has been used to inspect and calibrate the channels, and there has never been a situation where the embedded depth of the channels is greater than 5 mm, and the installation accuracy fully meets the requirements.

[0032] The above-described embodiments merely represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A tunnel embedded channel inspection and correction platform, characterized in that: include: An inspection unit comprises a support leg (11) and an arc-shaped platform (12), wherein the arc-shaped platform (12) is arranged on the support leg (11), and the arc shape of the upper end surface of the arc-shaped platform (12) is the same as the arc shape of the embedded groove; The correction unit comprises an arc frame (21) and adjustment bolts (22), wherein the arc frame (21) is mounted on the arc platform (12), a plurality of adjustment bolts (22) are threadedly connected to the arc frame (21) at intervals in an arc shape, and the axial direction of the adjustment bolts (22) is arranged to be the same as the radial direction of the arc platform (12).

2. The tunnel pre-buried channel inspection and correction platform according to claim 1 is characterized in that: Support plates (23) are provided on both sides of the arc-shaped platform (12), and walking mechanisms (24) are provided on both sides of the arc-shaped frame (21). The walking mechanisms (24) are slidably mounted on the support plates (23).

3. The tunnel pre-buried channel inspection and correction platform according to claim 2 is characterized in that: The walking mechanism (24) comprises an upper supporting plate (241), a lower supporting plate (242), a connecting plate (243) and a roller (244); the upper supporting plate (241) is connected to the end of the arc frame (21); the connecting plate (243) is located outside the supporting plate (23) and its two ends are respectively connected to the upper supporting plate (241) and the lower supporting plate (242); the roller (244) is installed at the bottom of the upper supporting plate (241) and the top of the lower supporting plate (242).

4. The tunnel pre-buried channel inspection and correction platform according to claim 3 is characterized in that: Fixed plates (245) are provided on both sides of the connecting plate (243), the fixed plates (245) are provided with fixing holes, and the corresponding outer end surface of the supporting plate (23) is provided with a plug hole, and the fixing holes and the plug holes are provided with plug pins (246) to fix the arc frame (21) on the arc platform (12).

5. The tunnel pre-buried channel inspection and correction platform according to claim 2 is characterized in that: There are at least two arc-shaped frames (21), which are respectively arranged on two sides of the arc-shaped platform (12).

6. The tunnel pre-buried channel inspection and correction platform according to claim 2 is characterized in that: Baffles (25) are provided at both ends of the supporting plate (23).

7. The tunnel pre-buried channel inspection and correction platform according to claim 1 is characterized in that: The arc-shaped frame (21) is provided with a handle (26).

8. The tunnel pre-buried channel inspection and correction platform according to claim 1 is characterized in that: A cushion block (27) is provided at the end of the adjusting bolt (22).

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