Tunnel construction surrounding rock reinforcing device

Abstract

The utility model provides a tunnel construction surrounding rock reinforcing device, which belongs to the technical field of surrounding rock reinforcing devices and structurally comprises a moving table, a rotating shaft group is embedded in the middle of the top surface of the moving table, and a construction track frame is vertically arranged on the top surface of the rotating shaft group. The middle of the bottom face of the construction track frame movably abuts against the periphery of the top face of the moving table for walking supporting, the outer side of the construction track frame is movably sleeved with a track walking device body, the front side face of the track walking device body is transversely provided with an extending end, and the lower end of the right side of the extending end is connected with a nozzle piece. The spray head piece of the reinforcing device can perform auxiliary infrared sensing extension through the extension end, so that the spray head piece can be accurately close to the surface of the surrounding rock without the collision problem, and the construction track frame and the track walking device main body are matched to assist the spray head piece to perform vertical arc displacement, so that the spray head piece can spray the surface of the high-position surrounding rock; and the spraying construction operation on the surrounding rock is convenient, fast and efficient, high-position construction risks are avoided, and practicability is high.

Description

Technical Field

[0001] This utility model relates to a rock reinforcement device for tunnel construction, and belongs to the technical field of rock reinforcement devices. Background Technology

[0002] During tunnel construction, surrounding rock reinforcement is a crucial step in ensuring construction safety and tunnel stability. Currently, the common method for surrounding rock reinforcement involves first fixing the rock with anchor bolts through drilling, then splicing and hanging wire mesh, and finally applying high-pressure sprayed concrete to form a solid outer shell on the surface of the surrounding rock, thereby achieving the purpose of reinforcing the surrounding rock.

[0003] However, complex geological conditions are often encountered during tunnel construction. When the tunnel body is composed of moderately weathered dolomite, the rock mass has well-developed fissures and karst formations, resulting in poor surrounding rock stability. If the tunnel body is composed of moderately weathered nodular limestone, not only are the rock mass fissures well-developed and highly fragmented, but karst formations are also present, further exacerbating the problem of poor surrounding rock stability. These complex geological conditions place higher demands on the surrounding rock reinforcement construction.

[0004] In the crucial process of high-pressure sprayed concrete, existing technologies mostly rely on manual operation, with workers holding the spray nozzles by hand. Especially for high-level sprayed concrete work, scaffolding is often required as a working platform. This method is not only cumbersome and inefficient but also poses certain safety risks, making it difficult to meet the demands for efficient and safe construction under complex geological conditions. Therefore, to address these shortcomings, this invention proposes a rock reinforcement device for tunnel construction. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device for reinforcing the surrounding rock in tunnel construction to solve the existing problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a tunnel construction surrounding rock reinforcement device, the structure of which includes a mobile platform, and a rotating shaft assembly is embedded in the middle of the top surface of the mobile platform, and a construction track frame is vertically arranged on the top surface of the rotating shaft assembly. The middle of the bottom surface of the construction track frame is movably supported against the periphery of the top surface of the mobile platform. A track walker body is movably sleeved on the outside of the construction track frame. A nozzle wiring rod is hinged to the left end of the track walker body and the lower left end of the construction track frame. An extension end is laterally arranged on the front side of the track walker body. A nozzle component is connected to the lower right end of the extension end. A motor is engaged on the left side of the rotating shaft assembly. The nozzle component is composed of a nozzle and a nozzle pipe. The nozzle pipe body is hung on the nozzle wiring rod.

[0007] A further improvement is that a support and travel groove is provided around the top surface of the mobile platform, and a rotating bushing groove is provided in the middle of the top surface of the mobile platform. A motor mounting groove is provided on one side of the rotating bushing groove, and the support and travel groove is annular.

[0008] A further improvement is that the rotating shaft assembly includes a bearing, on which a rotating shaft is vertically embedded, and a gear disk is sleeved on the shaft body of the rotating shaft. The motor is provided with a drive gear that meshes with the gear disk.

[0009] A further improvement is that the construction track frame includes a support frame, and an arc-shaped track for the main body of the track walker to move in an arc shape is connected to the outside of the support frame. A roller for moving against the support walking groove is provided in the middle of the bottom surface of the support frame, and an anti-detachment block is provided at the upper end of the arc-shaped track.

[0010] A further improvement is that the extension end includes a support, on which a telescopic device is arranged laterally, and a construction plate is arranged vertically on the right side of the telescopic device. A support slide rod passing through the support is arranged laterally on the upper left side of the construction plate, and an infrared sensor is arranged on the upper right side of the construction plate. An opening for the nozzle assembly is provided through the lower end of the construction plate.

[0011] A further improvement is that the main body of the track walker and the moving platform are existing technologies, and their structures will not be described in detail here.

[0012] A further improvement is that the mobile platform has a built-in horizontal adjustment mechanism, which is existing technology and will not be described in detail here.

[0013] A further improvement is that a high-pressure concrete pump truck is connected to the other end of the nozzle.

[0014] The beneficial effects of the utility model are:

[0015] This utility model provides a tunnel construction surrounding rock reinforcement device. Through a structural combination design of a moving platform, a rotating shaft assembly, a construction track frame, a track walker body, a nozzle wiring rod, an extension end, a nozzle component, and a motor, it constitutes a reinforcement device suitable for tunnel surrounding rock construction. The nozzle component of this reinforcement device can extend with auxiliary infrared sensing via the extension end, allowing the nozzle component to accurately approach the surrounding rock surface without collision. The construction track frame and the track walker body assist the nozzle component in vertical arc movement, enabling the nozzle component to spray high-level surrounding rock surfaces. The rotating shaft assembly, motor, and moving platform work together to achieve side-changing movement of the nozzle component, and the moving platform itself also has a longitudinal movement function, allowing the nozzle component to spray all areas of the surrounding rock surface. Through the above, the spraying operation of the surrounding rock is convenient, efficient, and eliminates the risks of high-level construction, making it highly practical. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of a tunnel construction surrounding rock reinforcement device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the top surface structure of the mobile platform of this utility model;

[0018] Figure 3 This is a schematic diagram of the rotating shaft assembly structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the construction track frame structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the extension end structure of this utility model. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figure 1-5 The present invention relates to a schematic diagram of a tunnel construction surrounding rock reinforcement device. The device comprises a mobile platform 1, with a rotating shaft assembly 2 embedded in the center of its top surface. A construction track frame 3 is vertically mounted on the top surface of the rotating shaft assembly 2. The bottom center of the construction track frame 3 movably abuts against the periphery of the top surface of the mobile platform 1 for support. A track walker body 4 is movably fitted onto the outer side of the construction track frame 3. A nozzle wiring rod 5 is hinged to the lower left side of the construction track frame 3 at the left end of the track walker body 4. An extension end 6 is laterally arranged on the front side of the track walker body 4. A nozzle component 7 is connected to the lower right side of the extension end 6. A motor 8 is engaged on the left side of the rotating shaft assembly 2. The nozzle component 7 is composed of a nozzle and a nozzle connection, and the nozzle body is hooked onto the nozzle wiring rod 5.

[0023] The top surface of the mobile platform 1 is provided with a support and travel groove 11 around its perimeter, and a rotating bushing groove 12 is provided in the middle of the top surface of the mobile platform 1. A motor mounting groove 13 is provided on one side of the rotating bushing groove 12. The support and travel groove 11 is circular.

[0024] The rotating shaft assembly 2 includes a bearing 21, and a rotating shaft 22 is vertically embedded on the bearing 21. A gear 23 is sleeved on the shaft body of the rotating shaft 22, and the motor 8 is provided with a drive gear that meshes with the gear 23.

[0025] The construction track frame 3 includes a support frame 31, and an arc-shaped track 32 for the main body 4 of the track walker to move in an arc is connected to the outside of the support frame 31. A roller 33 for moving against the support walking groove 11 is provided in the middle of the bottom surface of the support frame 31. An anti-detachment block 34 is provided at the upper end of the arc-shaped track 32.

[0026] The extension end 6 includes a support 61, and a telescopic device 62 is arranged laterally on the support 61. A construction plate 63 is arranged vertically on the right side of the telescopic device 62. A support slide rod 64 passing through the support 61 is arranged laterally on the upper left side of the construction plate 63. An infrared sensor 65 is arranged on the upper right side of the construction plate 63. An opening 66 for nozzle assembly is provided through the lower end of the construction plate 63.

[0027] Working principle:

[0028] During construction, the equipment is first moved to the middle of the tunnel in the surrounding rock area. Then, driven by the motor 8 and the rotating shaft assembly 2, the construction track frame 3 is adjusted to be horizontal. At this time, the nozzle 7 will be aligned with the surrounding rock. Then, the expansion joint 62 on the extension end 6 extends, passing through the construction plate 63 to bring the nozzle close to the surface of the surrounding rock. When the expansion joint 62 extends, the infrared sensor 65 assists in distance measurement, thereby ensuring a safe distance between the nozzle and the surface of the surrounding rock to prevent collision. In addition, the nozzle passes through the concrete connected to the other end of the nozzle pipe. When the high-pressure pump truck sprays concrete, the main body 4 of the track walker moves in an arc shape on the arc-shaped track 32 with the auxiliary extension end 6, so that the nozzle can also spray the surrounding rock at high level. It should be noted that the maximum arc angle of the main body 4 of the track walker on the arc-shaped track 32 is 100°. When the equipment has finished spraying the surrounding rock on one side of the tunnel, the construction track frame 3 is rotated 180° on the moving platform 1 to change sides through the cooperation of the motor 8 and the rotating shaft group 2. The longitudinal movement of the equipment is achieved by the moving platform 1 moving longitudinally in the middle of the tunnel.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for reinforcing surrounding rock during tunnel construction, characterized in that: Its structure includes a mobile platform, and a rotating shaft assembly is embedded in the center of the top surface of the mobile platform. A construction track frame is vertically installed on the top surface of the rotating shaft assembly. The bottom center of the construction track frame is movably supported against the periphery of the top surface of the mobile platform. A track walker body is movably sleeved on the outside of the construction track frame. A nozzle wiring rod is hinged to the left end of the track walker body and the lower left end of the construction track frame. An extension end is provided laterally on the front side of the track walker body. A nozzle component is connected to the lower right end of the extension end. A motor is engaged on the left side of the rotating shaft assembly. The nozzle component is composed of a nozzle and a nozzle pipe. The nozzle pipe body is hung on the nozzle wiring rod.

2. The tunnel construction surrounding rock reinforcement device according to claim 1, characterized in that: The top surface of the mobile platform is provided with a support and travel groove around its perimeter, and a rotating bushing groove is provided in the middle of the top surface of the mobile platform. A motor mounting groove is provided on one side of the rotating bushing groove. The support and travel groove is circular.

3. The tunnel construction surrounding rock reinforcement device according to claim 2, characterized in that: The rotating shaft assembly includes a bearing, on which a rotating shaft is vertically embedded, and a gear disk is fitted on the shaft body of the rotating shaft. The motor is provided with a drive gear that meshes with the gear disk.

4. The tunnel construction surrounding rock reinforcement device according to claim 3, characterized in that: The construction track frame includes a support frame, and an arc-shaped track for the main body of the track walker to move in an arc shape is connected to the outside of the support frame. A roller for moving against the support track groove is provided in the middle of the bottom surface of the support frame, and an anti-detachment block is provided at the upper end of the arc-shaped track.

5. The tunnel construction surrounding rock reinforcement device according to claim 4, characterized in that: The extension end includes a support, on which a telescopic device is arranged laterally, and a construction plate is arranged vertically on the right side of the telescopic device. A support slide rod passing through the support is arranged laterally on the upper left side of the construction plate, and an infrared sensor is arranged on the upper right side of the construction plate. A through-hole for nozzle assembly is provided at the lower end of the construction plate.

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