Advanced cyclic support structure for tunnel construction

Abstract

This utility model discloses an advanced cyclic support structure for tunnel construction, including a hollow slab. A rapid support assembly is connected to the top of the hollow slab via a bearing. A movable component is fixedly installed on one side of the rapid support assembly. The rapid support assembly includes a threaded rod and a lifting plate. The threaded rod is connected to the top of the hollow slab via a bearing, and the lifting plate is threadedly connected to the side wall of the threaded rod. U-shaped frames are fixedly installed on both sides of the lifting plate, and connecting rods are hinged to the inner side walls of the U-shaped frames. This utility model relates to the field of tunnel construction technology. This advanced cyclic support structure for tunnel construction, through its rapidly installed rapid support assembly, facilitates rapid support work, enabling immediate application of support force to the surrounding rock after excavation, quickly controlling rock deformation, significantly reducing the probability of collapse, effectively ensuring the safety of construction personnel, shortening the connection time between various construction stages, improving construction efficiency, avoiding project delays, and quickly sealing the surrounding rock.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to an advanced cyclic support structure for tunnel construction. Background Technology

[0002] Support structures are indeed necessary in tunnel construction. Their function is to maintain the stability of the surrounding rock. After tunnel excavation, the original stress balance of the surrounding rock is disrupted, leading to deformation, loosening, and even collapse. Support structures provide support, constraining rock deformation and preventing excessive deformation and instability, maintaining the rock in a relatively stable state to ensure construction safety and the normal use of the tunnel. They also bear the pressure from the surrounding rock, which exerts pressure on the tunnel. Support structures can withstand vertical, horizontal, and other complex combinations of pressure from the surrounding rock, rationally transferring and dispersing these pressures to prevent the tunnel lining and other main structures from being damaged by excessive loads.

[0003] The patent publication number "CN222376498U" discloses "This utility model relates to the field of tunnel construction and proposes a tunnel support structure, including an arc-shaped concrete slab, a vertical concrete slab installed at the bottom of the arc-shaped concrete slab, an upper arc-shaped block installed on the inner side of the two arc-shaped concrete slabs, a lower arc-shaped block installed on the inner side of the arc-shaped concrete slab and the vertical concrete slab, an insert rod installed in the middle of the arc-shaped concrete slab, a fixing ring provided on the outer circumference of the insert rod, a fixing plate installed at the bottom of the vertical concrete slab, and a fixing rod installed in the middle of the fixing plate. This utility model uses the upper arc-shaped blocks installed on the inner side of the two arc-shaped concrete slabs and the lower arc-shaped blocks installed on the inner side of the arc-shaped concrete slab and the vertical concrete slab. By utilizing the shapes of the upper and lower arc-shaped blocks, the force can be dispersed, so that the force of the support structure is distributed to the overall structure, which can form a strong support for the surrounding rock, thereby improving the safety of tunnel construction."

[0004] The existing support structure described in the aforementioned patent has a complicated support process, which is troublesome to support and thus affects work efficiency. In addition, it is relatively bulky and difficult to move.

[0005] To address these issues, this invention provides an advanced cyclic support structure for tunnel construction. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an advanced cyclic support structure for tunnel construction, which solves the problem that the support steps of the existing support structures are cumbersome and troublesome, thus affecting work efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a tunnel construction advanced cyclic support structure, comprising a hollow slab, the top of which is connected to a rapid support assembly via a bearing, and a movable assembly fixedly installed on one side of the rapid support assembly; the rapid support assembly comprises a threaded rod and a lifting plate, the threaded rod being connected to the top of the hollow slab via a bearing, the lifting plate being threadedly connected to the side wall of the threaded rod, U-shaped frames being fixedly installed on both sides of the lifting plate, a connecting rod being hinged to the inner side wall of the U-shaped frame, a support plate being provided on one side of the connecting rod, a second U-shaped frame being fixedly installed on one side of the support plate, the connecting rod being hinged to the second U-shaped frame, and a sliding plate being fixedly installed on one side of the support plate, the sliding plate being slidably connected to the hollow slab.

[0008] Furthermore, the quick support assembly also includes a knob, which is fixedly connected to the top of the threaded rod.

[0009] The above technical solution facilitates the rotation of the threaded rod, reduces operational effort, and promotes rapid support operations.

[0010] Furthermore, the moving component includes a fixed plate and a threaded rod II. The fixed plate is fixedly installed on the inner side wall of the support plate. The threaded rod II is threadedly connected to the top of the fixed plate. The bottom end of the threaded rod II is connected to a lifting plate II via a bearing. A wheel I is fixedly installed at the bottom of the lifting plate II.

[0011] By adopting the above technical solution, the height of the wheels can be adjusted to adapt to different road conditions, making movement more convenient.

[0012] Furthermore, the moving component also includes a second wheel, which is fixedly installed at the bottom of the second lifting plate.

[0013] By adopting the above technical solution, support points and stability are increased, ensuring smooth movement.

[0014] Furthermore, the moving component also includes a stabilizing rod, which is fixedly installed on the top of the second lifting plate and is slidably connected to the fixed plate.

[0015] The above technical solution is adopted to assist in lifting, prevent swaying, and ensure the reliable operation of the moving components.

[0016] Furthermore, the movable component also includes a second knob, which is fixedly connected to the top end of the second threaded rod.

[0017] The above technical solution facilitates the operation of the threaded rod and allows for precise adjustment of the wheel height.

[0018] Furthermore, an anti-wear pad is provided on one side of the support plate, and the anti-wear pad is bonded to the support plate.

[0019] By adopting the above technical solution, wear can be reduced, the service life of the support plate can be extended, and costs can be reduced.

[0020] Beneficial effects

[0021] This utility model provides an advanced cyclic support structure for tunnel construction. Compared with the prior art, it has the following advantages:

[0022] 1. The advanced cyclic support structure for tunnel construction, through the installation of rapid support components, facilitates rapid support work, enabling immediate application of support force to the surrounding rock after excavation, quickly controlling rock deformation, significantly reducing the probability of collapse, effectively ensuring the safety of construction personnel, shortening the connection time between various construction stages, improving construction efficiency, avoiding project delays, and quickly sealing the surrounding rock to reduce weathering and water erosion hazards, stabilizing the surrounding rock, and laying a solid foundation for subsequent construction, which is of great significance.

[0023] 2. The advanced circulating support structure for tunnel construction, through the installation of movable components, allows for easier movement of the entire structure. This enables flexible adjustment of its position during construction, saving manpower and time costs. Its lightweight nature facilitates its movement through complex tunnel spaces, accurately reaching support points, better conforming to the contours of the surrounding rock, enhancing the support effect, adapting to changes in the surrounding rock in different sections, and helping to facilitate the smooth progress of construction. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0027] Figure 3 This is a front view of the overall structure of this utility model;

[0028] Figure 4 This is an exploded view of the overall structure of this utility model.

[0029] Figure 5 This is a side view of the overall structure of this utility model.

[0030] In the diagram: 1. Hollow plate; 2. Quick support assembly; 21. Threaded rod one; 22. Lifting plate one; 23. U-shaped frame one; 24. Connecting rod; 25. Support plate; 26. U-shaped frame two; 27. Sliding plate; 28. Knob one; 3. Moving assembly; 31. Fixed plate; 32. Threaded rod two; 33. Lifting plate two; 34. Wheel one; 35. Wheel two; 36. Stabilizing rod; 37. Knob two; 4. Anti-wear pad. Detailed Implementation

[0031] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0032] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] Reference Figures 1 to 5 This application provides an advanced cyclic support structure for tunnel construction, including a hollow slab 1. A quick support assembly 2 is connected to the top of the hollow slab 1 via a bearing. A movable assembly 3 is fixedly installed on one side of the quick support assembly 2. The quick support assembly 2 includes a threaded rod 21 and a lifting plate 22. The threaded rod 21 is connected to the top of the hollow slab 1 via a bearing, and the lifting plate 22 is threadedly connected to the side wall of the threaded rod 21. U-shaped frames 23 are fixedly installed on both sides of the lifting plate 22. A connecting rod 24 is hinged to the inner wall. A support plate 25 is provided on one side of the connecting rod 24. A U-shaped frame 26 is fixedly installed on one side of the support plate 25. The connecting rod 24 and the U-shaped frame 26 are hinged together. A sliding plate 27 is fixedly installed on one side of the support plate 25. The sliding plate 27 is slidably connected to the hollow plate 1. The quick support assembly 2 also includes a knob 28. The knob 28 is fixedly connected to the top of the threaded rod 21. An anti-wear pad 4 is provided on one side of the support plate 25. The anti-wear pad 4 is bonded to the support plate 25.

[0034] In this embodiment, when support operation is required, knob 28 can be rotated, which drives threaded rod 21 to rotate. Since lifting plate 22 is threadedly connected to the side wall of threaded rod 21, when threaded rod 21 rotates, lifting plate 22 will move up and down along threaded rod 21. When lifting plate 22 moves upward, the U-shaped frame 23 fixedly installed on both sides will also move upward. Through the hinge action of connecting rod 24, the support plate 25 will be pushed outward. The sliding plate 27 fixedly installed on one side of support plate 25 is slidably connected to hollow plate 1, which ensures that support plate 25 can slide smoothly in a predetermined direction, thereby allowing multiple support plates 25 to gradually unfold and achieve support for the tunnel construction face. Moreover, a wear-resistant pad 4 is provided on one side of support plate 25. The wear-resistant pad 4 is bonded to support plate 25, which can reduce the friction between support plate 25 and tunnel wall during the support process and play a protective role. In this case, the thread helix angle is smaller than the equivalent friction angle.

[0035] Reference Figures 1 to 5 In one aspect of this embodiment, the moving component 3 includes a fixed plate 31 and a threaded rod 32. The fixed plate 31 is fixedly installed on the inner side wall of the support plate 25. The threaded rod 32 is threadedly connected to the top of the fixed plate 31. The bottom end of the threaded rod 32 is connected to a lifting plate 33 via a bearing. A wheel 34 is fixedly installed at the bottom of the lifting plate 33. The moving component 3 also includes a wheel 35, which is fixedly installed at the bottom of the lifting plate 33. The moving component 3 also includes a stabilizing rod 36, which is fixedly installed at the top of the lifting plate 33. The stabilizing rod 36 is slidably connected to the fixed plate 31. The moving component 3 also includes a knob 37, which is fixedly connected to the top end of the threaded rod 32.

[0036] In this embodiment, when the entire support structure needs to be moved, knob 2 37 is rotated, which drives threaded rod 2 32 to rotate. Since threaded rod 2 32 is connected to the top of fixed plate 31 by threads, its rotation will cause lifting plate 2 33, which is connected to the bottom end by bearings, to move up and down. When lifting plate 2 33 moves down, wheels 1 34 and 2 35, which are fixedly installed at its bottom, will contact the ground, supporting the entire support structure and lifting it off the ground for easy movement. At the same time, stabilizing rod 36 is fixedly installed on the top of lifting plate 2 33 and is slidably connected to fixed plate 31. This ensures that lifting plate 2 33 is more stable during up and down movement, ensuring that the wheels can smoothly achieve the support and movement functions, facilitating the movement of the entire advanced circulation support structure in the tunnel as needed, and playing a protective role. In this case, the thread helix angle is less than the equivalent friction angle.

[0037] Working principle: When support operation is required, knob 28 can be rotated, which drives threaded rod 21 to rotate. Since lifting plate 22 is threadedly connected to the side wall of threaded rod 21, lifting plate 22 will move up and down along threaded rod 21 when threaded rod 21 rotates. When lifting plate 22 moves upward, U-shaped frame 23 fixedly installed on both sides will also move upward. Through the hinge action of connecting rod 24, the support plate 25 will be pushed outward. The sliding plate 27 fixedly installed on one side of support plate 25 is slidably connected to hollow plate 1, which ensures that support plate 25 can slide smoothly in a predetermined direction, so that multiple support plates 25 can be gradually unfolded to support the tunnel construction face. Moreover, anti-wear pad 4 is provided on one side of support plate 25. Anti-wear pad 4 is bonded to support plate 25, which can reduce the friction between support plate 25 and tunnel wall during support, and play a protective role. In this case, the thread helix angle is less than the equivalent friction angle.

[0038] When the entire support structure needs to be moved, knob 2 37 is turned, which drives threaded rod 2 32 to rotate. Since threaded rod 2 32 is connected to the top of fixed plate 31 by threads, its rotation will cause lifting plate 2 33, which is connected to the bottom end by bearings, to move up and down. When lifting plate 2 33 moves down, wheels 1 34 and 2 35, which are fixedly installed at its bottom, will contact the ground, supporting the entire support structure and lifting it off the ground for easy movement. At the same time, stabilizing rod 36 is fixedly installed on the top of lifting plate 2 33 and is slidably connected to fixed plate 31. This ensures that lifting plate 2 33 is more stable during up and down movement, ensuring that the wheels can smoothly achieve the support and movement functions, facilitating the movement of the entire advanced circulation support structure in the tunnel as needed, and playing a protective role. In this case, the thread helix angle is less than the equivalent friction angle.

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

Claims

1. A tunnel construction advanced cyclic support structure, comprising hollow slabs (1), characterized in that: The top of the hollow plate (1) is connected to a quick support assembly (2) via a bearing, and a movable assembly (3) is fixedly installed on one side of the quick support assembly (2). The quick support assembly (2) includes a threaded rod (21) and a lifting plate (22). The threaded rod (21) is connected to the top of the hollow plate (1) by a bearing. The lifting plate (22) is threaded to the side wall of the threaded rod (21). A U-shaped frame (23) is fixedly installed on both sides of the lifting plate (22). A connecting rod (24) is hinged to the inner side wall of the U-shaped frame (23). A support plate (25) is provided on one side of the connecting rod (24). A U-shaped frame (26) is fixedly installed on one side of the support plate (25). The connecting rod (24) and the U-shaped frame (26) are hinged together. A sliding plate (27) is fixedly installed on one side of the support plate (25). The sliding plate (27) is slidably connected to the hollow plate (1).

2. The tunnel construction advanced cyclic support structure according to claim 1, characterized in that: The quick support assembly (2) also includes a knob (28), which is fixedly connected to the top of the threaded rod (21).

3. The tunnel construction advanced cyclic support structure according to claim 1, characterized in that: The moving component (3) includes a fixed plate (31) and a threaded rod (32). The fixed plate (31) is fixedly installed on the inner side wall of the support plate (25). The threaded rod (32) is threadedly connected to the top of the fixed plate (31). The bottom end of the threaded rod (32) is connected to a lifting plate (33) via a bearing. A wheel (34) is fixedly installed at the bottom of the lifting plate (33).

4. The tunnel construction advanced cyclic support structure according to claim 3, characterized in that: The moving component (3) also includes a second wheel (35), which is fixedly installed at the bottom of the second lifting plate (33).

5. The tunnel construction advanced cyclic support structure according to claim 4, characterized in that: The moving component (3) also includes a stabilizing rod (36), which is fixedly installed on the top of the lifting plate (33) and is slidably connected to the fixed plate (31).

6. A pre-circulating support structure for tunnel construction according to claim 5, characterised in that: The moving component (3) also includes a second knob (37), which is fixedly connected to the top of the second threaded rod (32).

7. The advance cycle of supports for tunnel construction according to claim 1, characterized in that: A wear-resistant pad (4) is provided on one side of the support plate (25), and the wear-resistant pad (4) is bonded to the support plate (25).

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