Supporting platform for non-blasting excavation construction of hard rock tunnel

Abstract

The utility model relates to the technical field of tunnel construction, and discloses a hard rock tunnel non-blasting excavation construction supporting platform which comprises a base and further comprises a first hinge seat fixed to one side of the top of the base, a supporting shell is hinged to the top of the first hinge seat, an adjusting frame is arranged in the supporting shell, and a second hinge seat is fixed to one side of the top of the base. The top of the adjusting frame is fixedly connected with a supporting rod. The abutting plate is fixed to the top of the supporting rod, and an arc-shaped plate is arranged on the top of the abutting plate. The base is conveniently fixed to the ground of the position needing to be supported through cooperation of the mounting hole and the toothed plate, the friction between the base and the ground can be increased through the toothed plate, then the threaded rod is made to rotate through the motor, the threaded plate can drive the adjusting frame to ascend, and then the inner wall of a tunnel is supported through cooperation of the abutting plate and the arc-shaped plate; and a hydraulic rod is hinged to the base through a second hinge seat, so that the angle of the supporting shell is conveniently adjusted, the supporting angle is conveniently adjusted, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a construction support platform for non-blasting excavation of hard rock tunnels. Background Technique

[0002] Non-blasting excavation construction of hard rock tunnels means that when carrying out tunnel engineering construction underground, instead of using explosive items or other construction methods with greater destructiveness, some other relatively gentle excavation methods with less impact on the surrounding environment are adopted. This method is usually called the "mining method", the "shield method" or the "laser cutting method", etc. The purpose of these methods is to minimize the impact and damage to the surrounding environment while ensuring the quality of tunnel excavation.

[0003] In the current tunnel support work, a fixed support platform formed by welding steel sections and steel bars is usually used to support the top of the tunnel to prevent the top of the tunnel from loosening during construction, which may cause construction workers to be injured. However, due to the small operating space before the tunnel work, manual installation and fixation are required, which brings great inconvenience to the operator. Moreover, the existing steel plate support has a support area in the shape of a cuboid cross-section, with a small support area, and it is laborious to install the steel plate manually, and it is not convenient to adjust the height and support angle after installation. Content of the Utility Model

[0004] The purpose of the utility model is to provide a construction support platform for non-blasting excavation of hard rock tunnels to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A construction support platform for non-blasting excavation of hard rock tunnels, including a base, and further including:

[0006] A first hinge seat fixed on one side of the top of the base, a support shell is hinged on the top of the first hinge seat, an adjustment frame is arranged inside the support shell, and a support rod is fixedly connected to the top of the adjustment frame;

[0007] A pressure-bearing plate fixed on the top of the support rod, an arc plate is arranged on the top of the pressure-bearing plate, an adjusting member for adjusting the support height is fixedly connected to the bottom of the inner cavity of the support shell, the adjusting member includes a motor and a threaded plate, and a reinforcing rib is fixedly connected inside the arc plate.

[0008] Preferably, a second hinge seat is fixedly connected to the top of the base, a hydraulic rod is hinged on the top of the second hinge seat, and the side of the hydraulic rod away from the second hinge seat is hinged to the support shell.

[0009] Preferably, a toothed plate for anti-slip use is fixedly connected to the bottom of the base, and a mounting hole is formed inside the base.

[0010] Preferably, sliding strips for limiting the movement of the adjusting frame are fixedly connected to the front side and the rear side of the adjusting frame, and a sliding groove for cooperating with the sliding strips is formed inside the support shell.

[0011] Preferably, reinforcing plates are fixedly connected to both sides of the pressing plate, and one side of the reinforcing plate is fixedly connected to the support shell.

[0012] Preferably, tapered blocks are fixedly connected to both sides of the top of the pressing plate, extension plates are fixedly connected to the front and rear sides of the pressing plate, and positioning cones are fixedly connected to the tops of the extension plates.

[0013] Preferably, the bottom of the motor is fixedly connected to the inner wall of the support shell, a threaded rod is installed at the output end of the motor, the surface of the threaded rod is in threaded connection with the inside of the threaded plate, the surface of the threaded plate is fixedly connected to the inner wall of the adjusting frame, and a limiting ring for limiting the stroke of the threaded plate is fixedly connected to the top of the threaded rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The present utility model facilitates the fixation of the base on the ground of the required support part through the cooperation of the mounting hole and the toothed plate, and the toothed plate can increase the friction between the base and the ground. Then, the motor rotates the threaded rod, and at this time, the threaded plate drives the adjusting frame to rise. Then, the inner wall of the tunnel is supported by the cooperation of the pressing plate and the arc-shaped plate. And the hydraulic rod is hinged to the base through the second hinge seat, which is convenient for adjusting the angle of the support shell, so as to adjust the support angle and improve the use convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a construction support platform for non-blasting excavation of hard rock tunnels provided by the present utility model;

[0017] Figure 2 is a schematic top view structure diagram provided by the present utility model;

[0018] Figure 3 is a schematic cross-sectional structure diagram of the support shell provided by the present utility model;

[0019] Figure 4 is a schematic structure diagram of the adjusting member provided by the present utility model.

[0020] In the figure: 1. Base; 2. First hinge seat; 3. Support shell; 4. Adjusting frame; 5. Support rod; 6. Pressure plate; 7. Arc plate; 8. Adjusting member; 801. Motor; 802. Threaded rod; 803. Threaded plate; 804. Limiting ring; 9. Second hinge seat; 10. Hydraulic rod; 11. Tooth plate; 12. Mounting hole; 13. Slide bar; 14. Slide groove; 15. Reinforcing plate; 16. Tapered block; 17. Reinforcing rib; 18. Extension plate; 19. Positioning cone. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4 As shown in the figure, a construction support platform for non-explosive excavation of hard rock tunnels includes a base 1, and further includes: a first hinge seat 2 fixed on one side of the top of the base 1, the top of the first hinge seat 2 is hinged with a support shell 3, and the support shell 3 can be conveniently adjusted through the first hinge seat 2. An adjusting frame 4 is arranged inside the support shell 3, a support rod 5 is fixedly connected to the top of the adjusting frame 4, and the pressure plate 6 can be conveniently supported through the support rod 5. Slide bars 13 for limiting the movement of the adjusting frame 4 are fixedly connected to the front side and the rear side of the adjusting frame 4. By cooperating the slide bars 13 with the slide grooves 14, the stability of the adjusting frame 4 during movement can be improved. A slide groove 14 for cooperating with the slide bars 13 is opened inside the support shell 3;

[0023] A pressure plate 6 fixed on the top of the support rod 5, an arc plate 7 is arranged on the top of the pressure plate 6, and the inner wall of the tunnel can be conveniently pressed and supported through the support rod 5, the pressure plate 6 and the arc plate 7. An adjusting member 8 for adjusting the support height is fixedly connected to the bottom of the inner cavity of the support shell 3. The adjusting member 8 includes a motor 801 and a threaded plate 803. A reinforcing rib 17 is fixedly connected inside the arc plate 7. By fixing the reinforcing rib 17 inside the arc plate 7, the support strength of the arc plate 7 can be improved. Reinforcing plates 15 are fixedly connected to both sides of the pressure plate 6, and one side of the reinforcing plate 15 is fixedly connected to the support shell 3. By fixedly connecting the reinforcing plate 15 with the support shell 3 and the pressure plate 6, the support strength of the pressure plate 6 can be improved.

[0024] At the top of the base 1, a second hinge seat 9 is fixedly connected. At the top of the second hinge seat 9, a hydraulic rod 10 is hinged. On the side of the hydraulic rod 10 away from the second hinge seat 9, it is hinged to the support shell 3. By means of the cooperation of the second hinge seat 9 and the hydraulic rod 10, it is convenient to tilt the angle of the support shell 3 so as to adjust the support angle. At the bottom of the base 1, a toothed plate 11 for anti-slip use is fixedly connected. Through the toothed plate 11, the friction between the base 1 and the ground can be increased. And the installation hole 12 facilitates the positioning of the position of the base 1. The installation hole 12 is opened inside the base 1.

[0025] On both sides of the top of the pressure plate 6, conical blocks 16 are fixedly connected. On the front and rear sides of the pressure plate 6, extension plates 18 are fixedly connected. At the top of the extension plate 18, a positioning cone 19 is fixedly connected. Through the conical blocks 16, auxiliary support can be provided. Through the cooperation of the extension plate 18 and the positioning cone 19, the support strength between the arc-shaped plate 7 and the inner wall of the tunnel can be increased.

[0026] At the bottom of the motor 801, it is fixedly connected to the inner wall of the support shell 3. At the output end of the motor 801, a threaded rod 802 is installed. The surface of the threaded rod 802 is threadedly connected to the inside of the threaded plate 803. By turning on the output end of the motor 801 to drive the threaded rod 802 to rotate, at this time the threaded plate 803 will cooperate with the adjusting frame 4 to rise, thereby adjusting the support height. The surface of the threaded plate 803 is fixedly connected to the inner wall of the adjusting frame 4. At the top of the threaded rod 802, a limit ring 804 for limiting the stroke of the threaded plate 803 is fixedly connected. Through the limit ring 804, the final stroke of the threaded plate 803 can be limited to prevent the adjusting frame 4 from detaching from the inside of the support shell 3.

[0027] Working principle: First, fix the base 1 on the ground at the support position through the cooperation of the toothed plate 11 and the installation hole 12. Subsequently, turn on the output end of the motor 801 to drive the threaded rod 802 to rotate. At this time, the threaded plate 803 will cooperate with the adjusting frame 4 to rise, thereby adjusting the support height. During the movement of the adjusting frame 4, the slide bar 13 will be driven to move inside the chute 14. Subsequently, the adjusting frame 4 cooperates with the support rod 5 to make the pressure plate 6 cooperate with the arc-shaped plate 7 to press and support on the inner wall of the tunnel. During this process, the hydraulic rod 10 can be driven to tilt and adjust the angle of the support shell 3, and through the conical blocks 16, the fitting strength between the arc-shaped plate 7 and the inner wall of the tunnel can be increased. Then, cooperate with the extension plate 18 and the positioning cone 19 to penetrate into the inner wall of the tunnel for fixed support.

[0028] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0029] Although the embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hard rock tunnel non-explosive excavation construction support platform, comprising a base (1), characterized in that: Also includes: A first hinge seat (2) is fixed to one side of the top of the base (1), the top of the first hinge seat (2) is hingedly connected to a support shell (3), an adjustment frame (4) is arranged inside the support shell (3), and the top of the adjustment frame (4) is fixedly connected to a support rod (5); A pressure plate (6) is fixed to the top of the support rod (5), and an arc-shaped plate (7) is arranged on the top of the pressure plate (6). An adjusting member (8) for adjusting the support height is fixedly connected to the bottom of the inner cavity of the support shell (3), and the adjusting member (8) includes a motor (801) and a threaded plate (803). A reinforcing rib (17) is fixedly connected to the inside of the arc-shaped plate (7).

2. A hard rock tunnel non-explosive excavation construction support platform according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a second hinge seat (9), the top of the second hinge seat (9) is hinged to a hydraulic rod (10), and the side of the hydraulic rod (10) away from the second hinge seat (9) is hinged to the support shell (3).

3. A hard rock tunnel non-explosion excavation construction support platform according to claim 1, characterized in that: A toothed plate (11) for anti-slip use is fixedly connected to the bottom of the base (1), and a mounting hole (12) is provided inside the base (1).

4. A hard rock tunnel non-explosion construction support platform according to claim 1, characterized in that: The front and rear sides of the adjustment frame (4) are fixedly connected with a slide bar (13) for limiting the movement of the adjustment frame (4), and a slide groove (14) for matching the slide bar (13) is provided inside the support shell (3).

5. The non-explosive excavation construction support platform for hard rock tunnels according to claim 1 is characterized by: Both sides of the pressure plate (6) are fixedly connected to reinforcing plates (15), and one side of the reinforcing plate (15) is fixedly connected to the supporting shell (3).

6. The non-explosive excavation construction support platform for hard rock tunnels according to claim 1, characterized in that: Conical blocks (16) are fixedly connected to both sides of the top of the pressure plate (6), extension plates (18) are fixedly connected to both the front and rear sides of the pressure plate (6), and a positioning cone (19) is fixedly connected to the top of the extension plate (18).

7. The non-explosive excavation construction support platform for hard rock tunnels according to claim 1, characterized in that: The bottom of the motor (801) is fixedly connected to the inner wall of the support shell (3); a threaded rod (802) is installed at the output end of the motor (801); the surface of the threaded rod (802) is connected to the internal thread of the threaded plate (803); the surface of the threaded plate (803) is fixedly connected to the inner wall of the adjustment frame (4); and a limit ring (804) for limiting the travel of the threaded plate (803) is fixedly connected to the top of the threaded rod (802).

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