Tunnel underground excavation reinforcing structure

Abstract

The utility model relates to the technical field of tunnel construction, and discloses a tunnel underground excavation reinforcing structure which comprises a cavity, a framework mechanism is arranged in the cavity and used as a framework for concrete pouring, a bottom plate is fixedly connected to the bottom of the inner wall of the cavity, a plurality of supporting mechanisms are arranged on the top of the bottom plate, and the supporting mechanisms are arranged on the bottom plate. The multiple supporting mechanisms are all used for reinforcing and supporting a concrete pouring structure, the top of the bottom plate is slidably connected with multiple panels, the outer walls of the multiple panels are all provided with connecting mechanisms, the multiple connecting mechanisms are all used for connecting two adjacent panels, and the multiple supporting mechanisms all comprise supporting columns. According to the supporting mechanism, through the design that the rotating block is rotationally connected with the rotating shell, the angle of the supporting column can be adjusted so as to meet different installation requirements, and by means of a threaded transmission structure of the supporting rod and the supporting column, an operator can accurately adjust the length of the supporting mechanism by rotating the stress block so as to adapt to panels with different intervals.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a tunnel reinforcement structure for underground excavation. Background Technology

[0002] Tunnels, as passageways excavated from existing buildings or earth-rock structures, are used in transportation engineering, water conservancy engineering, and underground space development. They can overcome terrain obstacles, shorten travel distances, and improve transportation efficiency, making them an important component of modern infrastructure construction.

[0003] Traditional tunnel reinforcement structures consist of steel arches, steel mesh, and shotcrete layers. During construction, the steel arches are first installed at designed intervals along the tunnel excavation surface. Then, the steel mesh is laid and welded to the arches. Finally, shotcrete is applied to the surface to form the reinforcement layer. However, because the supporting steel frame has a fixed length, it cannot be flexibly adjusted according to the actual tunnel excavation dimensions, geological conditions, and installation requirements at different construction stages. This results in insufficient support in some areas and difficulty in installation in others due to size mismatches, affecting construction progress and reinforcement effectiveness.

[0004] Existing technologies address the issue of the non-adjustable length of traditional support steel frames by employing modular splicing support structures. Multiple standard segments are connected by bolts to change the overall length. However, in practical use, this splicing structure still has limitations. During construction, standard segments need to be disassembled and reassembled multiple times according to site conditions to adapt to different installation requirements. The operation process is cumbersome and time-consuming. The splicing structure makes it difficult to achieve precise adjustment of the support length and cannot meet the installation requirements of panels with different spacings, resulting in uneven stress on the panels and deformation during concrete pouring. This affects the construction quality and stability of the tunnel excavation reinforcement structure. Therefore, a tunnel excavation reinforcement structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a tunnel excavation reinforcement structure, which aims to improve the problem that the existing technology is difficult to finely adjust the support length, cannot meet the installation requirements of panels with different spacing, and causes uneven stress on the panels.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tunnel excavation reinforcement structure, comprising a cavern, wherein a skeleton mechanism is provided inside the cavern, the skeleton mechanism is used as a skeleton for concrete pouring, a base plate is fixedly connected to the bottom of the inner wall of the cavern, and multiple support mechanisms are provided on the top of the base plate, the multiple support mechanisms are used to reinforce and support the concrete pouring structure, and multiple panels are slidably connected to the top of the base plate, and connecting mechanisms are provided on the outer walls of the multiple panels, the multiple connecting mechanisms are used to connect two adjacent panels;

[0007] Each of the multiple support mechanisms includes a column, and the multiple columns are all located inside the cavity. A rotating block is fixedly connected to the right end of each of the multiple columns. A foot is slidably connected to the outer wall of each of the multiple panels on one adjacent side. A rotating shell is fixedly connected to the left side of the outer wall of each of the multiple right feet. A support rod is threadedly connected to the inner wall of each of the multiple columns. Two force-bearing blocks are fixedly connected to the outer wall of each of the multiple support rods. A quick-release assembly is provided on the right side of each of the multiple left feet.

[0008] As a further description of the above technical solution:

[0009] The connecting mechanism includes a locking plate, the outer wall of which is fixedly connected to the right side of the outer wall of the panel. A semi-circular rotary lock is rotatably connected to the left side of the outer wall of the panel. A rotary handle is fixedly connected to the outer wall of the semi-circular rotary lock. Two limiting blocks are fixedly connected to the left side of the outer wall of the panel. A sealing component is provided on the outer wall of the panel.

[0010] As a further description of the above technical solution:

[0011] The skeleton structure includes multiple reinforcing ribs, the outer walls of which are fixedly connected to the inner wall of the cavity, and multiple reinforcing ribs and transverse ribs are fixedly connected to the outer walls of the reinforcing ribs.

[0012] As a further description of the above technical solution:

[0013] The quick-assembly assembly includes a slide cylinder, the left side of the outer wall of the slide cylinder is fixedly connected to the right side of the left support leg, the outer wall of the slide cylinder is provided with a sliding groove, and the left end of the support rod is fixedly connected to a slider.

[0014] As a further description of the above technical solution:

[0015] The sealing assembly includes a locking block, the outer wall of which is fixedly connected to the front side of the outer wall of the panel, a sealing strip is fixedly connected to the front side of the outer wall of the locking block, and a locking groove is provided on the rear side of the outer wall of the panel.

[0016] As a further description of the above technical solution:

[0017] Each of the outer walls of the multiple panels is fixedly connected to a slotted block on the side away from each other, and each of the outer walls of the multiple panels is fixedly connected to two unloading plates on the adjacent side.

[0018] As a further description of the above technical solution:

[0019] The outer walls of the plurality of rotating blocks are rotatably connected to the inner walls of the plurality of rotating shells, and the outer walls of the plurality of sliders are rotatably connected to the inner walls of the plurality of sliding cylinders.

[0020] As a further description of the above technical solution:

[0021] The outer walls of the multiple semi-circular rotary locks are rotatably connected to the inner walls of the multiple lock plates, and the outer walls of the multiple locking blocks are slidably connected to the inner walls of the multiple locking slots.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the rotating connection design of the rotating block and the rotating shell allows the support column to adjust its angle to adapt to different installation requirements. The threaded transmission structure of the support rod and the support column allows the operator to precisely adjust the length of the support mechanism by rotating the force block, adapting to panels with different spacing and forming a stable support. At the same time, the sliding groove of the slider and the slide cylinder in the quick-installation component enables the support mechanism to be quickly fastened, shortening the installation time.

[0024] 2. In this utility model, through the mechanical connection between the locking plate and the semi-ring rotary lock, the anti-loosening limit of the limiting block, and the sealing treatment of the sealing component, the connecting mechanism realizes the reliable connection of adjacent panels from both the fixing and sealing levels. The coordinated action of multiple connecting mechanisms not only enhances the integrity of the panels in the entire reinforced structure, but also improves the waterproof performance of the structure, providing a stable support environment for tunnel excavation and ensuring construction safety and project quality. Attached Figure Description

[0025] Figure 1 This is a perspective view of a tunnel reinforcement structure proposed in this utility model.

[0026] Figure 2 This is a front view of a tunnel reinforcement structure proposed in this utility model.

[0027] Figure 3 This is a split view of the support column of a tunnel excavation reinforcement structure proposed in this utility model;

[0028] Figure 4 This is a split view of the support rod of a tunnel excavation reinforcement structure proposed in this utility model;

[0029] Figure 5 This is a top view of the panel of a tunnel reinforcement structure proposed in this utility model;

[0030] Figure 6 This is a cross-sectional view of the connection mechanism of a tunnel reinforcement structure proposed in this utility model.

[0031] Legend:

[0032] 1. Cavern; 2. Skeleton mechanism; 201. Reinforcing rib; 202. Strengthening rib; 203. Horizontal rib; 3. Base plate; 4. Support mechanism; 401. Support column; 402. Rotating block; 403. Support leg; 404. Rotating shell; 405. Support rod; 406. Reinforcing block; 407. Quick-release assembly; 4071. Slide cylinder; 4072. Slide groove; 4073. Slider; 5. Panel; 6. Connecting mechanism; 601. Locking plate; 602. Semi-ring rotary lock; 603. Turning handle; 604. Limiting block; 605. Sealing assembly; 6051. Locking block; 6052. Sealing strip; 6053. Locking groove; 7. Slotted block; 8. Unloading through plate. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] See attached document Figure 1 Appendix Figure 3 and attached Figure 4 An embodiment of this utility model provides a tunnel excavation reinforcement structure, including a cavern 1. A skeleton mechanism 2 is provided inside the cavern 1. The skeleton mechanism 2 is used as a skeleton for concrete pouring. A base plate 3 is fixedly connected to the bottom of the inner wall of the cavern 1. Multiple support mechanisms 4 are provided on the top of the base plate 3. The multiple support mechanisms 4 are used to reinforce and support the concrete pouring structure. Multiple panels 5 are slidably connected to the top of the base plate 3. A connecting mechanism 6 is provided on the outer wall of each of the multiple panels 5. The multiple connecting mechanisms 6 are used to connect two adjacent panels 5.

[0035] Multiple support mechanisms 4 each include a column 401, which is located inside the cavity 1. A rotating block 402 is fixedly connected to the right end of each column 401. The rotating block 402 provides a basis for the rotatable connection between the column 401 and the support leg 403, facilitating adjustment of the angle and position of the column 401. Support legs 403 are slidably connected to adjacent sides of the outer walls of multiple panels 5. The support legs 403 are used to connect the support mechanism 4 to the panel 5; their sliding connection facilitates installation and positioning. The right side of the multiple support legs 403... A rotating shell 404 is fixedly connected to the left side of the outer wall. The rotating shell 404 cooperates with the rotating block 402, allowing the support column 401 to rotate relative to the support foot 403 to adapt to different installation requirements. The outer walls of multiple rotating blocks 402 are rotatably connected to the inner walls of multiple rotating shells 404, ensuring the rotational flexibility and connection reliability between the support column 401 and the support foot 403. The inner walls of multiple support columns 401 are threadedly connected to support rods 405. Through the threaded transmission between the support rods 405 and the support column 401, the length of the support mechanism 4 can be adjusted to adapt to different installation requirements. Panels 5 with varying spacing, and multiple support rods 405, each have two force-bearing blocks 406 fixedly connected to their outer walls. These force-bearing blocks 406 provide a point of force application for the operator, facilitating the rotation of the support rods 405. Each of the left-side support legs 403 has a quick-connect assembly 407 on its right side. The quick-connect assembly 407 includes a slide cylinder 4071, whose outer left side is fixedly connected to the right side of the left-side support leg 403, thus achieving a fixed connection between the slide cylinder 4071 and the support leg 403 and ensuring structural integrity. The outer wall of 4071 is provided with a sliding groove 4072, which provides a guiding path for the sliding of the slider 4073 and limits its radial movement range. The left end of the support rod 405 is fixedly connected to the slider 4073. The slider 4073 cooperates with the sliding groove 4072 to realize the length adjustment of the support rod 405 while ensuring that it does not detach from the slide cylinder 4071 during rotation. The outer walls of multiple sliders 4073 are respectively rotatably connected to the inner walls of multiple slide cylinders 4071 to ensure the smoothness of the rotation of the support rod 405 and the structural stability.

[0036] Specifically, during installation, the rotating block 402 at the right end of the support column 401 is inserted into the rotating shell 404 of the right support leg 403. Utilizing the rotational connection between the two, the support column 401 can rotate relative to the support leg 403 without moving the rotating block 402. By rotating the force-bearing block 406, the support rod 405, which is threadedly connected to the support column 401, is driven to screw in or out of the inner wall of the support column 401. The combined length of the support column 401 and support rod 405 is adjusted. When this length is close to the distance between the two side panels 5, the two support legs 403 are fixed to the surface of the panel 5, completing the initial positioning. In the quick-installation assembly 407, the sliding cylinder 4071 is fixed to the right side of the left support leg 403, and its outer... The wall groove 4072 cooperates with the slider 4073 at the left end of the support rod 405. After the slider 4073 slides into the inner wall of the slide cylinder 4071 along the groove 4072, the force block 406 continues to rotate to make the support rod 405 rotate out, pushing the slider 4073 to move inside the slide cylinder 4071, further increasing the combined length of the support column 401 and the support rod 405 until the panel 5 is pressed tightly. The rotational connection between the slider 4073 and the slide cylinder 4071 ensures that the support rod 405 does not disengage when rotating. At the same time, the movement of the slider 4073 makes the support mechanism 4 closely abut against the panel 5, achieving stable support for the panel 5, effectively distributing the concrete pouring pressure, and preventing the panel 5 from deforming.

[0037] See attached document Figure 5 and attached Figure 6The connecting mechanism 6 includes a locking plate 601. The outer wall of the locking plate 601 is fixedly connected to the right side of the outer wall of the panel 5. A semi-circular rotary lock 602 is rotatably connected to the left side of the outer wall of the panel 5. The outer walls of multiple semi-circular rotary locks 602 are rotatably connected to the inner walls of multiple locking plates 601. The semi-circular rotary locks 602 are key components for connecting adjacent panels 5. They engage and disengage with the locking plate 601 through rotation. The outer walls of multiple semi-circular rotary locks 602 are rotatably connected to the inner walls of multiple locking plates 601, forming a mechanical connection between adjacent panels 5 in the horizontal direction to ensure connection strength. A handle 603 is fixedly connected to the outer wall of the semi-circular rotary lock 602. The handle 603 provides a force application point for the operator to easily drive the semi-circular rotary lock 602 to rotate, achieving a quick connection operation. Two limit blocks 604 are fixedly connected to the left side of the outer wall of the panel 5. The limiting block 604 is used to limit the rotation range of the semi-ring rotary lock 602. The outer wall of the panel 5 is provided with a sealing component 605, which includes a locking block 6051. The outer wall of the locking block 6051 is fixedly connected to the front side of the outer wall of the panel 5 to achieve a fixed connection between the locking block 6051 and the panel 5, ensuring the stability of the sealing structure. A sealing strip 6052 is fixedly connected to the front side of the outer wall of the locking block 6051. The sealing strip 6052 is deformed by compression when the panels 5 are spliced ​​to fill the gaps and play a role in waterproofing and dustproofing. A slot 6053 is opened on the rear side of the outer wall of the panel 5. The slot 6053 cooperates with the locking block 6051 to provide guidance and positioning functions for the splicing of the panels 5. The outer walls of multiple locking blocks 6051 are slidably connected to the inner walls of multiple slots 6053 respectively to achieve a tight fit when adjacent panels 5 are spliced, ensuring the sealing effect.

[0038] Specifically, the operator turns the handle 603, causing the semi-circular rotary lock 602 to rotate until it engages with the inner wall of the lock plate 601, thus achieving a horizontal connection between adjacent panels 5. Two limiting blocks 604 on the outer left side of panel 5 restrict the rotation range of the semi-circular rotary lock 602 to prevent loosening after engagement. The sealing assembly 605 consists of a locking block 6051, a sealing strip 6052, and a slot 6053: the locking block 6051 is fixed to the outer front wall of panel 5, and the sealing strip 6052 is connected to its front side. A slot 6053 is opened on the outer rear wall of another panel 5. During splicing, the locking block 6051 slides and embeds itself along the inner wall of the slot 6053. At the same time, the sealing strip 6052 is compressed and deformed, filling the gap between the panels 5 to form a sealing barrier.

[0039] See attached document Figure 1 Appendix Figure 2 and attached Figure 5The skeleton structure 2 includes multiple reinforcing ribs 201. The outer walls of the reinforcing ribs 201 are fixedly connected to the inner wall of the cavern 1. The reinforcing ribs 201 serve as the main load-bearing components of the skeleton structure 2, bearing the pressure from the concrete pouring and surrounding rock. The outer walls of the reinforcing ribs 201 are fixedly connected to the inner wall of the cavern 1, achieving a stable connection with the cavern 1 and providing basic support for the entire reinforcement structure. Multiple reinforcing ribs 202 are fixedly connected to the outer walls of each reinforcing rib 201. The reinforcing ribs 202 enhance the stability and deformation resistance of the reinforcing ribs 201, improving the overall strength of the skeleton structure 2. Multiple horizontal reinforcing bars 203 are connected to the panel 5. The horizontal reinforcing bars 203, together with the main reinforcing bars 201 and the reinforcing bars 202, form a grid structure, which provides an attachment frame for concrete pouring and improves the overall integrity of the reinforced structure. The outer walls of multiple panels 5 are fixedly connected to slotted blocks 7 on opposite sides. The slotted blocks 7 are used to form grooves after cement pouring, providing a buffer space for the thermal expansion and contraction of cement and preventing concrete cracking due to temperature stress. Two disassembly plates 8 are fixedly connected to adjacent sides of the outer walls of multiple panels 5. The disassembly plates 8 are used to provide force points when disassembling the panels 5, making it easier for construction personnel to separate the panels 5 from other structures by applying external force, thereby improving disassembly efficiency.

[0040] Specifically, the reinforcing bar 201 is tightly fixed to the inner wall of the cavern 1, serving as the main load-bearing component and bearing the pressure from the surrounding rock and the hardened cement. The reinforcing bars 202 and the transverse bars 203 are interlaced and fixed to the outer wall of the reinforcing bar 201, together forming a stable grid frame, enhancing the overall rigidity of the skeleton, preventing deformation under stress, and providing reliable support for cement pouring. During the cement pouring process, the slotted block 7 creates grooves on the cement surface. When the cement expands and contracts due to changes in ambient temperature, the grooves provide space for the expansion and contraction of the cement, relieving the stress caused by thermal expansion and contraction, preventing cement cracking, and ensuring the durability of the structure. When the panel 5 needs to be disassembled later, the construction personnel apply external force by unloading through the plate 8, using the lever principle or mechanical tools to separate the panel 5 from the cement and the skeleton structure 2, reducing the difficulty of disassembly and improving construction efficiency and structural maintenance convenience.

[0041] Working Principle: The installation and operation of the support mechanism 4 is crucial to the reinforcement process. Each support mechanism 4 consists of a support column 401, a rotating block 402, a support leg 403, a rotating shell 404, a support rod 405, a force-bearing block 406, and a quick-release assembly 407. During installation, the rotating block 402 is engaged with the inner wall of the rotating shell 404. Utilizing the rotational connection characteristics, the support column 401 can rotate relative to the support leg 403, preventing the rotation of the support column 401 from causing the rotating block 402 to rotate. By rotating the force-bearing block 406, the support rod 405 rotates within the inner wall of the support column 401. Since the support rod 405 is threadedly connected to the support column 401, as the support rod 405 rotates, it screws in or out within the support column 401, changing the overall length of the combined support column 401 and support rod 405. When the length of the entire support mechanism 4 is close to the distance between the left and right side panels 5, the two support legs 403 are fixed to the surface of the panel 5, completing the connection between the support mechanism 4 and the panel 5. The initial positioning is achieved by using the quick-installation assembly 407 to quickly fasten the support mechanism 4. The slide cylinder 4071 in the quick-installation assembly 407 is fixed, and the slide groove 4072 opened on its outer wall cooperates with the slider 4073 at the left end of the support rod 405. The slider 4073 slides into the inner wall of the slide cylinder 4071 through the slide groove 4072. The slider 4073 can rotate inside the slide cylinder 4071. The force block 406 continues to rotate, causing the support rod 405 to rotate out further, pushing the slider 4073 to move inside the slide cylinder 4071, increasing the length of the combination of the support column 401 and the support rod 405 until it presses against the surface of the panel 5. The rotational connection between the slider 4073 and the slide cylinder 4071 ensures that the support rod 405 will not detach from the slide cylinder 4071 when it rotates. At the same time, the movement of the slider 4073 inside the slide cylinder 4071 allows the support mechanism 4 to closely abut against the panel 5, forming a stable support for the panel 5, sharing the pressure of the concrete pouring structure, and preventing the panel 5 from deforming.

[0042] Furthermore, when connecting adjacent panels 5, mechanical fixation is first achieved using a locking plate 601 and a semi-circular rotary lock 602. The locking plate 601 is fixed to the outer right wall of panel 5, and the semi-circular rotary lock 602 is rotatably connected to the outer left wall of panel 5 via a rotating shaft. The outer wall of the semi-circular rotary lock 602 can be embedded into the inner wall of the locking plate 601. The operator rotates the semi-circular rotary lock 602 by turning the handle 603. When the semi-circular rotary lock 602 rotates to engage with the inner wall of the locking plate 601, the two adjacent panels 5 are tightly connected together in the horizontal direction. Two limiting blocks 604 set on the outer left wall of panel 5 restrict the rotation range of the semi-circular rotary lock 602, ensuring that the semi-circular rotary lock 602 is engaged with the locking plate 601. Once engaged, the connection will not rotate freely, preventing loosening and ensuring the stability of the connecting mechanism 6. While achieving mechanical connection, the sealing component 605 ensures the sealing of the panel 5 connection. The locking block 6051 in the sealing component 605 is fixed to the front outer wall of the panel 5, and the front of the locking block 6051 is connected to the sealing strip 6052. On the rear outer wall of the other panel 5, a slot 6053 is provided. When adjacent panels 5 are close to be spliced, the locking block 6051 slides and embeds itself along the inner wall of the slot 6053. During this process, the sealing strip 6052 is squeezed and deformed, tightly filling the gap between the two panels 5, preventing leakage from affecting the stability and durability of the reinforced structure.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tunnel reinforcement structure for underground excavation, comprising a cavern (1), characterized in that: The interior of the cavern (1) is provided with a skeleton mechanism (2), which serves as the skeleton for concrete pouring. The bottom of the inner wall of the cavern (1) is fixedly connected to a base plate (3), and the top of the base plate (3) is provided with multiple support mechanisms (4). The multiple support mechanisms (4) are used to reinforce and support the concrete pouring structure. The top of the base plate (3) is slidably connected with multiple panels (5), and the outer walls of the multiple panels (5) are provided with connecting mechanisms (6). The multiple connecting mechanisms (6) are used to connect two adjacent panels (5). Each of the multiple support mechanisms (4) includes a support column (401), and each of the multiple support columns (401) is located inside the cavern (1). A rotating block (402) is fixedly connected to the right end of each of the multiple support columns (401). Each of the multiple panels (5) has a foot (403) slidably connected to the adjacent side of its outer wall. A rotating shell (404) is fixedly connected to the left side of the outer wall of each of the multiple right foot (403). Each of the multiple support columns (401) has a support rod (405) threadedly connected to its inner wall. Each of the multiple support rods (405) has two force-bearing blocks (406) fixedly connected to its outer wall. Each of the multiple left foot (403) has a quick-installation assembly (407) on its right side.

2. The tunnel reinforcement structure according to claim 1, characterized in that: The connecting mechanism (6) includes a locking plate (601), the outer wall of which is fixedly connected to the right side of the outer wall of the panel (5), a semi-circular rotary lock (602) is rotatably connected to the left side of the outer wall of the panel (5), a rotary handle (603) is fixedly connected to the outer wall of the semi-circular rotary lock (602), two limiting blocks (604) are fixedly connected to the left side of the outer wall of the panel (5), and a sealing component (605) is provided on the outer wall of the panel (5).

3. The tunnel reinforcement structure according to claim 1, characterized in that: The skeleton structure (2) includes multiple reinforcing ribs (201), the outer walls of the multiple reinforcing ribs (201) are fixedly connected to the inner wall of the cavern (1), the outer walls of the multiple reinforcing ribs (201) are fixedly connected to multiple reinforcing ribs (202), and the outer walls of the multiple reinforcing ribs (201) are fixedly connected to multiple transverse ribs (203).

4. The tunnel reinforcement structure according to claim 1, characterized in that: The quick-installation assembly (407) includes a slide cylinder (4071), the outer wall of which is fixedly connected to the right side of the left support leg (403) on the left side. The outer wall of the slide cylinder (4071) is provided with a slide groove (4072), and the left end of the support rod (405) is fixedly connected to a slider (4073).

5. The tunnel reinforcement structure according to claim 2, characterized in that: The sealing assembly (605) includes a locking block (6051), the outer wall of which is fixedly connected to the front side of the outer wall of the panel (5), a sealing strip (6052) is fixedly connected to the front side of the outer wall of the locking block (6051), and a locking groove (6053) is provided on the rear side of the outer wall of the panel (5).

6. The tunnel reinforcement structure according to claim 1, characterized in that: A slotted block (7) is fixedly connected to the outer wall of the plurality of panels (5) on the side away from each other, and two unloading plates (8) are fixedly connected to the adjacent side of the outer wall of the plurality of panels (5).

7. The tunnel reinforcement structure according to claim 4, characterized in that: The outer walls of the plurality of rotating blocks (402) are rotatably connected to the inner walls of the plurality of rotating shells (404), and the outer walls of the plurality of sliders (4073) are rotatably connected to the inner walls of the plurality of sliding cylinders (4071).

8. A tunnel reinforcement structure according to claim 5, characterized in that: The outer walls of the multiple semi-circular rotary locks (602) are rotatably connected to the inner walls of the multiple lock plates (601), and the outer walls of the multiple locking blocks (6051) are slidably connected to the inner walls of the multiple locking slots (6053).

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