Corrugated plate shed tunnel structure

Abstract

The embodiment of the utility model provides a corrugated plate shed tunnel structure, and relates to the technical field of shed tunnels. The corrugated plate shed tunnel structure comprises a corrugated plate composite structure and a side wall. The corrugated plate composite structure comprises a corrugated plate, an outer formwork, a reinforcing mesh and micro-expansive concrete. The corrugated plates are integrally in an arch shape, and the lower ends of the corrugated plates are connected with the side walls and jointly define a shed tunnel channel. The outer template is connected with the corrugated plate, and an accommodating cavity is defined by the outer template and the corrugated plate; the reinforcing mesh is arranged in the containing cavity. The containing cavity is filled with the micro-expansive concrete, and the reinforcing mesh is wrapped with the micro-expansive concrete. The corrugated plate shed tunnel structure provided by the embodiment of the utility model can effectively improve the protection capability of the structure, and the protection forms are richer.

Description

Technical Field

[0001] This utility model relates to the field of shed technology, and more specifically, to a corrugated plate shed structure. Background Technology

[0002] In some areas with extremely complex terrain and geological conditions, the road network is sparse and the access routes are limited. Natural disasters such as landslides, high-altitude collapses, and giant rockfalls are ever-present, posing a huge challenge to the safe operation of highways.

[0003] Highway tunnels, as one of the most effective means of in-situ protection for highways, act like a "safety helmet" protecting the road. However, traditional highway tunnels are limited by a single rectangular reinforced concrete structure, resulting in insufficient structural protection capacity and a limited range of protection methods. Utility Model Content

[0004] The purpose of this utility model is to provide a corrugated plate perforation structure, which can effectively improve the structural protection capability and enrich the protection methods.

[0005] The embodiments of this utility model are implemented as follows:

[0006] In the first aspect, this utility model provides a corrugated plate shed structure, including a corrugated plate composite structure and sidewalls;

[0007] The corrugated plate composite structure includes corrugated plates, outer formwork, steel mesh, and micro-expansion concrete;

[0008] The corrugated plate is arched in shape, and the lower end of the corrugated plate is connected to the side wall, together forming a tunnel.

[0009] The outer template is connected to the corrugated plate and together they form an accommodating cavity;

[0010] The reinforcing mesh is disposed within the accommodating cavity;

[0011] The micro-expansion concrete fills the cavity and covers the steel mesh.

[0012] Furthermore, in an optional embodiment, the reinforcing mesh includes a plurality of transverse reinforcing bars and a plurality of longitudinal reinforcing bars, wherein the plurality of transverse reinforcing bars are perpendicular to and connected to the plurality of longitudinal reinforcing bars.

[0013] Furthermore, in an optional embodiment, the outer template is generally inverted U-shaped, and the lower end of the outer template is detachably connected to the corrugated plate.

[0014] Furthermore, in an optional embodiment, the outer template includes two bases and a corrugated outer template connected between the two bases;

[0015] The two bases are detachably connected to the corrugated plate;

[0016] The two bases, the corrugated plate, and the corrugated outer template together form the accommodating cavity.

[0017] Furthermore, in an optional embodiment, the corrugated plate composite structure further includes a shear force combination connector;

[0018] The shear assembly connector is disposed within the accommodating cavity and is encased in the micro-expansion concrete. The shear assembly connector is connected to the trough of the corrugated plate.

[0019] Furthermore, in an optional embodiment, the shear force assembly includes an arc-shaped plate, a flat plate, a shear force screw, and a plurality of shear force fastening nuts;

[0020] The curved plate is attached to the trough of the corrugated plate, and the two ends of the flat plate are respectively connected to the curved plate. Multiple shear fastening nuts are threadedly engaged with the shear screw to fasten the flat plate and the curved plate to the corrugated plate.

[0021] Furthermore, in an optional embodiment, the corrugated plate composite structure further includes a shock-absorbing plate;

[0022] The damping plate is disposed between the corrugated plate and the micro-expansion concrete.

[0023] Furthermore, in an optional embodiment, the corrugated plate perforation structure further includes anchor bolts, connecting nuts, and washers, and there are multiple corrugated plates;

[0024] Along the length and / or circumferential direction of the corrugated plate perforation structure, two adjacent corrugated plates are connected by the anchor bolt, the connecting nut, and the washer.

[0025] Furthermore, in an optional embodiment, the corrugated plate cavity structure further includes foundation anchor bolts, angle steel, and foundation connecting bolts;

[0026] The lower end of the corrugated plate is connected to the angle steel via the foundation connecting bolts;

[0027] The basic anchor bolts are embedded in the side wall and connected to the angle steel.

[0028] Furthermore, in an optional embodiment, the corrugated plate shed structure further includes a shed top, a clay layer, and a backfill layer;

[0029] The top of the hole is located on top of the outer template, and the top of the hole has a sloping guide surface.

[0030] The clay layer and the backfill soil layer are stacked sequentially on the guide surface of the tunnel top slope.

[0031] The beneficial effects of the corrugated plate perforation structure provided in this embodiment of the utility model include:

[0032] The corrugated plate tunnel structure provided in this embodiment of the invention employs a corrugated plate composite structure. Based on the corrugated plate structure, a steel mesh is added, and the accommodating cavity is filled with micro-expansion concrete, resulting in a higher cross-sectional or structural load-bearing capacity and greater spanning capability. The corrugated plate composite structure, through the combination of corrugated plates and steel mesh, forms a flexible mesh structure, which can significantly reduce the impact force by extending the impact time of falling rocks and increasing the deformation of the flexible mesh structure. Furthermore, the kinetic energy of falling rocks impacting the corrugated plate tunnel structure is converted into strain energy, plastic deformation energy, and fracture energy of the corrugated plate composite structure, effectively reducing the impact kinetic energy on the structure, with the ultimate goal of reducing the impact load from falling rocks. In addition, it also increases the ultimate bearing capacity of the structure. Therefore, the corrugated plate tunnel structure provided in this embodiment of the invention can effectively improve the structural protection capability and enrich the protection methods. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the corrugated plate perforation structure provided in an optional embodiment of the present utility model;

[0035] Figure 2 A schematic diagram of the corrugated plate composite structure of the corrugated plate cavity structure provided in an optional embodiment of this utility model;

[0036] Figure 3 A schematic diagram of the outer template of the corrugated plate perforation structure provided in an optional embodiment of this utility model;

[0037] Figure 4 A schematic diagram of the installation structure of the shear combination connector for the corrugated plate shed structure provided in an optional embodiment of this utility model;

[0038] Figure 5 This is a schematic diagram of the shear combination connector of the corrugated plate shed structure provided in an optional embodiment of the present utility model;

[0039] Figure 6A schematic diagram of the connection structure at the crest of two adjacent corrugated plates in the corrugated plate perforation structure provided in an optional embodiment of this utility model;

[0040] Figure 7 A schematic diagram of the connection structure between two adjacent corrugated plates at the trough of the corrugated plate cavity structure provided in the optional embodiment of this utility model;

[0041] Figure 8 This is a schematic diagram of the connection structure of multiple corrugated plates in the corrugated plate perforation structure provided in an optional embodiment of the present utility model.

[0042] Figure 9 A three-dimensional schematic diagram of the connection structure of multiple corrugated plates in the corrugated plate perforation structure provided in an optional embodiment of this utility model;

[0043] Figure 10 for Figure 1 A magnified schematic diagram of the structure at point X in the middle.

[0044] icon:

[0045] 10-Corrugated board tunnel structure; 11-Corrugated board composite structure; 12-Side wall; 13-Tunnel passage;

[0046] 100-Corrugated sheet;

[0047] 200 - Outer template; 210 - Base; 220 - Corrugated outer template;

[0048] 300 - Steel mesh; 310 - Transverse reinforcement; 320 - Longitudinal reinforcement;

[0049] 400-Micro-expansion concrete;

[0050] 500 - Shear force assembly connector; 510 - Curved plate; 520 - Flat plate; 530 - Shear force bolt; 540 - Shear force fastening nut;

[0051] 600-damping plate;

[0052] 710 - Anchor bolt; 720 - Connecting nut; 730 - Washer;

[0053] 810 - Foundation anchor bolt; 820 - Angle steel; 830 - Foundation connecting bolt;

[0054] 910 - Top of the tunnel; 911 - Sloping guide surface of the tunnel top; 920 - Clay layer; 930 - Backfill layer. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0056] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0057] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0058] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0059] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0060] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0061] Please see Figure 1 and Figure 2 This utility model provides a corrugated plate tunnel structure 10, which includes a corrugated plate composite structure 11 and a sidewall 12. The corrugated plate composite structure 11 includes a corrugated plate 100, an outer formwork 200, a reinforcing mesh 300, and micro-expansion concrete 400. The corrugated plate 100 is generally arched, and its lower end is connected to the sidewall 12, together forming a tunnel passage 13. The outer formwork 200 is connected to the corrugated plate 100, together forming an accommodating cavity. The reinforcing mesh 300 is disposed within the accommodating cavity. The micro-expansion concrete 400 fills the accommodating cavity and covers the reinforcing mesh 300.

[0062] The corrugated plate tunnel structure 10 employs a corrugated plate composite structure 11. Based on the corrugated plate 100 structure, a steel mesh 300 is added, and micro-expansion concrete 400 is filled within the accommodating cavity, resulting in a higher cross-sectional or structural load-bearing capacity and greater spanning capability for the corrugated plate tunnel structure 10. The corrugated plate composite structure 11, through the combination of the corrugated plate 100 and the steel mesh 300, forms a flexible mesh structure, which can significantly reduce the impact force by extending the impact time of falling rocks and increasing the deformation of the flexible mesh structure. Furthermore, the kinetic energy of falling rocks impacting the corrugated plate tunnel structure 10 is converted into strain energy, plastic deformation energy, and fracture energy of the corrugated plate composite structure 11, effectively reducing the impact kinetic energy on the structure, with the ultimate goal of reducing the impact load from falling rocks. Additionally, it also increases the ultimate bearing capacity of the structure. Therefore, the corrugated plate tunnel structure 10 provided by this embodiment can effectively improve the structural protection capability and enrich the protection methods.

[0063] It should be noted that the corrugated plate 100 has a wavy cross-section, and the corrugated plate 100 as a whole forms an arch, which can be used together with the side wall 12 to form a tunnel passage 13. In this embodiment, the corrugated plate 100 is a corrugated steel plate. The corrugated plate 100 is a good energy-absorbing component, and its energy absorption effect can be increased by increasing the wall thickness, etc. The corrugated plate tunnel structure 10 provided by this utility model applies the corrugated plate 100 to the tunnel structure, which not only has a fast construction speed and low project cost, but also good load-bearing performance. In some optional embodiments, the surface of the corrugated plate 100 is treated with hot-dip galvanizing to form a hot-dip galvanized layer. An asphalt coating can also be applied on the construction site, and subsequent maintenance only requires applying the asphalt coating.

[0064] In this embodiment, the steel mesh 300 includes a plurality of transverse steel bars 310 and a plurality of longitudinal steel bars 320, wherein the plurality of transverse steel bars 310 are perpendicular to and connected to the plurality of longitudinal steel bars 320.

[0065] By connecting multiple transverse steel bars 310 and multiple longitudinal steel bars 320, and placing them in the same plane, a mesh structure can be formed, which can buffer falling rocks and effectively reduce the impact kinetic energy on the tunnel structure.

[0066] It should be noted that the transverse reinforcing bars 310 or the longitudinal reinforcing bars 320 can be considered as stiffening ribs in reinforced concrete, which can both strengthen the structure and increase its load-bearing capacity. Additionally, in some optional embodiments, the transverse reinforcing bars 310 and the longitudinal reinforcing bars 320 are connected together by tying, and can be connected to the corrugated plate 100 by vertical reinforcing bars.

[0067] In this embodiment, the outer template 200 is generally inverted U-shaped, and the lower end of the outer template 200 is detachably connected to the corrugated plate 100.

[0068] It should be noted that the outer formwork 200 is in the shape of an inverted U. The outer formwork 200 is upside down on the corrugated plate 100 and is detachably connected to the corrugated plate 100, thereby forming an accommodating space between the outer formwork 200 and the corrugated plate 100, so as to fill the accommodating space with micro-expansion concrete 400.

[0069] Please see Figure 3 Furthermore, in this embodiment, the outer template 200 includes two bases 210 and a corrugated outer template 220 connected between the two bases 210. The two bases 210 are detachably connected to the corrugated plate 100. The two bases 210, the corrugated plate 100, and the corrugated outer template 220 together form an accommodating cavity.

[0070] By setting the corrugated outer template 220, the corrugated plate composite structure 11 forms a double-layer corrugated plate 100 structure, resulting in higher cross-sectional or structural load-bearing capacity and greater spanning capacity. The base 210 facilitates detachable connection with the corrugated plate 100. Optionally, the base 210 is connected to the corrugated plate 100 by bolts.

[0071] Please continue reading. Figure 2 In addition, in this embodiment, the micro-expansion concrete 400 can be made of foamed lightweight concrete, which is easy to construct and the pouring is self-flowing, which can ensure the compactness of the pouring and the quality of the filling. At the same time, it is lightweight, has high load-bearing capacity and good integrity.

[0072] Please see Figure 2 , Figure 4 and Figure 5In addition, in this embodiment, the corrugated plate composite structure 11 also includes a shear force combination connector 500. The shear force combination connector 500 is disposed within the accommodating cavity and covered by micro-expansion concrete 400, and is connected to the trough of the corrugated plate 100. By providing the shear force combination connector 500, the shear force on the corrugated plate 100 can be effectively reduced, preventing shear failure.

[0073] Furthermore, in this embodiment, the shear force assembly connector 500 includes an arc-shaped plate 510, a flat plate 520, a shear force screw 530, and a plurality of shear force fastening nuts 540. The arc-shaped plate 510 is fitted to the trough of the corrugated plate 100, the two ends of the flat plate 520 are connected to the arc-shaped plate 510 respectively, and the plurality of shear force fastening nuts 540 are threadedly engaged with the shear force screw 530 to fasten the flat plate 520 and the arc-shaped plate 510 to the corrugated plate 100.

[0074] By attaching the curved plate 510 to the trough of the corrugated plate 100 and securing the flat plate 520 and the curved plate 510 to the corrugated plate 100 via the threaded engagement of the shear fastening nut 540 and the shear bolt 530, shear force is reduced and shear failure is prevented. The shear bolt 530 may be inverted L-shape for a tighter connection with the micro-expansion concrete 400, further reducing shear force.

[0075] Please see Figure 2 In addition, in this embodiment, the corrugated plate composite structure 11 also includes a damping plate 600. The damping plate 600 is disposed between the corrugated plate 100 and the micro-expansion concrete 400. By setting the damping plate 600, the buffering effect against falling rocks can be further enhanced, effectively reducing the impact kinetic energy on the structure, and the ultimate goal is still to reduce the impact load of falling rocks.

[0076] Optionally, the damping plate 600 can be a retractable EVA buffer plate, which has an energy absorption function to further enhance the buffering effect against falling rocks. Utilizing the low density, good toughness, and strong compressibility of EVA buffer material, the radial compression deformation of the surrounding rock is transformed into the radial contraction deformation of the EVA material, achieving full release of soil pressure and effective utilization of the self-supporting capacity of the surrounding rock, while effectively protecting the rigid secondary lining of the corrugated plate 100 from damage.

[0077] Please see Figure 6 and Figure 7 In addition, in this embodiment, the corrugated plate perforation structure 10 also includes anchor bolts 710, connecting nuts 720, and washers 730, and there are multiple corrugated plates 100. Specifically, along the length and / or circumferential direction of the corrugated plate perforation structure 10, adjacent corrugated plates 100 are connected by anchor bolts 710, connecting nuts 720, and washers 730.

[0078] It should be noted that, along the length and / or circumference of the corrugated plate perforation structure 10, adjacent corrugated plates 100 can be connected by anchor bolts 710, connecting nuts 720, and washers 730. For details, please refer to... Figure 6 If two adjacent corrugated plates 100 are connected at the crests, then the gasket 730 is a concave gasket to match the crest shape of the corrugated plate 100; similarly, please refer to Figure 7 When two adjacent corrugated plates 100 are connected at the trough, the gasket 730 is a convex gasket to match the shape of the trough of the corrugated plate 100. Optionally, the anchor bolt 710 is an M24 high-strength bolt. Both the anchor bolt 710 and the connecting nut 720 are hot-dip galvanized.

[0079] Please see Figure 8 and Figure 9 In addition, along the length of the corrugated plate perforation structure 10, it can be considered that multiple corrugated plates 100 form arched rings connected in sequence. In the figure, they are shown as large rings, small rings, large rings, and small rings connected in sequence. The adjacent two arched rings are staggered to improve the connection stability of the corrugated plates 100.

[0080] Please see Figure 10 In addition, in this embodiment, the corrugated plate canopy structure 10 also includes foundation anchor bolts 810, angle steel 820, and foundation connecting bolts 830. The lower end of the corrugated plate 100 is connected to the angle steel 820 via the foundation connecting bolts 830. The foundation anchor bolts 810 are embedded in the side wall 12 and connected to the angle steel 820.

[0081] The corrugated plate 100 is connected to the side wall 12 by the foundation anchor bolts 810, angle steel 820, and foundation connecting bolts 830, thereby making the connection between the corrugated plate 100 and the side wall 12 more secure. The side wall 12 can be a concrete side wall 12.

[0082] Please see Figure 1 In addition, in this embodiment, the corrugated plate tunnel structure 10 also includes a tunnel top 910, a clay layer 920, and a backfill layer 930. The tunnel top 910 is located on top of the outer formwork 200 and has a tunnel top sloping guide surface 911. The clay layer 920 and the backfill layer 930 are sequentially stacked on the tunnel top sloping guide surface 911.

[0083] By setting a sloping guide surface 911 at the top of the tunnel, and layering clay 920 and backfill soil 930 on the sloping guide surface 911, the impact force can be decomposed and guided along the trajectory, allowing the falling rocks to fall smoothly and avoiding "head-on collision" with the tunnel structure, thus preventing damage. At the same time, the falling objects are guided to roll down the tunnel roof, preventing them from accumulating at the top. Optionally, the sloping guide surface 911 at the top of the tunnel can be an inclined plane or an inclined arc surface.

[0084] Please see Figures 1-10 In the construction of the corrugated plate perforation structure 10 provided in this embodiment of the utility model, the corrugated plates 100 are assembled in sections, and all corrugated plates 100 are hot-dip galvanized, with an average zinc coating thickness greater than 84 μm. Along the length and / or circumference of the corrugated plate perforation structure 10, adjacent corrugated plates 100 can be connected by anchor bolts 710, connecting nuts 720, and washers 730. The shape of the washers 730 is set according to the connection position, and either concave or convex washers 730 can be used. The gaps between the corrugated plates 100 are waterproofed using cold-resistant rubber sealing gaskets. Shock-absorbing plates 600 are laid on the corrugated plates 100. Shear force combined connectors 500 are installed at the troughs of the corrugated plates 100. Multiple shear force fastening nuts 540 are threaded into shear force bolts 530 to fasten the flat plate 520 and the arc-shaped plate 510 to the corrugated plates 100. Multiple transverse reinforcing bars 310 and multiple longitudinal reinforcing bars 320 are tied together, and optionally connected to the corrugated plate 100 via vertical reinforcing bars. An outer formwork 200 is inverted and installed on the corrugated plate 100, detachably connected to the corrugated plate 100 via a base 210. Pouring is carried out in the cavity between the outer formwork 200 and the corrugated plate 100, using the corrugated plate 100 and the outer formwork 200 as templates. Foamed lightweight concrete is poured, forming micro-expansion concrete 400 between the outer formwork 200 and the corrugated plate 100. The pouring is self-flowing, ensuring dense pouring and filling quality. A clay layer 920 is formed by covering the sloping guide surface 911 at the top of the tunnel, and then backfill soil is used to form a backfill layer 930. This converts the kinetic energy of falling rocks impacting the tunnel structure into the strain energy, plastic deformation energy, and fracture energy of the buffer material.

[0085] In summary, the corrugated plate shed structure 10 provided in this embodiment of the present invention adopts a corrugated plate composite structure 11. Based on the corrugated plate 100 structure, a steel mesh 300 is added, and micro-expansion concrete 400 is filled into the accommodating cavity, resulting in a higher cross-sectional or structural load-bearing capacity and greater spanning ability for the corrugated plate shed structure 10. This corrugated plate shed structure 10 adopts a flexible-overcoming-rigidity + active energy dissipation approach, proposing a multi-dimensional, three-dimensional protection technology to enhance the impact resistance of sheds from four dimensions: "guidance-delay-dissipation-resistance". The four dimensions of "guidance-delay-dissipation-resistance" are as follows:

[0086] Guide: The top of the tunnel 910 is a guide surface. A tunnel top slope guide surface 911 is set at the top of the tunnel 910. The tunnel top slope guide surface 911 can be an inclined plane or an inclined arc surface. A clay layer 920 and a backfill soil layer 930 are stacked on the tunnel top slope guide surface 911 in sequence. This can decompose the impact force and guide it along the trajectory, so that the falling rocks can fall smoothly and avoid the falling rocks "head-on impact" with the tunnel structure and cause damage. At the same time, it guides the falling objects to roll down the tunnel top and avoids them accumulating at the top.

[0087] Extension: Flexible time delay. The corrugated plate composite structure 11, through the combination of corrugated plate 100 and steel mesh 300, forms a flexible mesh structure, which can significantly reduce the impact force by extending the impact time of falling rocks and increasing the deformation of the flexible mesh structure.

[0088] Energy dissipation: buffering energy dissipation. The kinetic energy of the impact of falling rocks on the corrugated plate shed structure 10 is converted into the strain energy, plastic deformation energy and fracture energy of the corrugated plate composite structure 11, effectively reducing the impact kinetic energy on the structure. The ultimate goal is still to reduce the impact load of falling rocks.

[0089] Impact resistance: Structural impact resistance. Increases the ultimate bearing capacity of the structure.

[0090] In addition, by applying a multi-level combined tunnel protection system based on a buffer energy dissipation mechanism, the system achieves high-efficiency protection goals such as "strong protection, easy repair, light weight, and prefabricated construction," providing a new solution for high-level, high-energy rockfall protection in strong earthquake zones. This effectively reduces the construction risks of highway tunnels traversing areas prone to geological disasters, resulting in significant economic and social benefits.

[0091] Compared to traditional cast-in-place concrete tunnel structures, corrugated plate tunnel structures (10) offer advantages such as shorter construction cycles, easier concrete construction, better filling quality, and superior structural load-bearing performance. They are more suitable for applications in mountainous areas, high altitudes, snow-covered areas, and for emergency road repairs in mountainous regions. Furthermore, their excellent load-bearing performance allows them to better withstand accidents such as rockfalls and collapses in mountainous areas. Monitoring after construction showed that stress changes fluctuated significantly in the early stages but stabilized later, indicating that the structure stabilizes over time. This demonstrates that the construction technology possesses excellent stability and safety, making it worthy of reference and promotion.

[0092] Therefore, the corrugated plate perforation structure 10 provided in this embodiment of the present invention can effectively improve the structural protection capability and provide more diverse protection methods.

[0093] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A corrugated plate perforation structure, characterized in that, It includes a corrugated plate composite structure (11) and a side wall (12); The corrugated plate composite structure (11) includes a corrugated plate (100), an outer formwork (200), a steel mesh (300), and micro-expansion concrete (400). The corrugated plate (100) is arched in shape. The lower end of the corrugated plate (100) is connected to the side wall (12) and together they form a tunnel (13). The outer template (200) is connected to the corrugated plate (100) and together they form an accommodating cavity; the outer template (200) is generally U-shaped, and the lower end of the outer template (200) is detachably connected to the corrugated plate (100); the outer template (200) includes two bases (210) and a corrugated outer template (220) connected between the two bases (210); the two bases (210) are detachably connected to the corrugated plate (100); the two bases (210), the corrugated plate (100), and the corrugated outer template (220) together form the accommodating cavity; The steel mesh (300) is disposed within the accommodating cavity; The micro-expansion concrete (400) fills the cavity and covers the steel mesh (300). The micro-expansion concrete (400) is made of foamed lightweight concrete.

2. The corrugated plate perforation structure according to claim 1, characterized in that, The steel mesh (300) includes a plurality of transverse steel bars (310) and a plurality of longitudinal steel bars (320), wherein the plurality of transverse steel bars (310) are perpendicular to and connected to the plurality of longitudinal steel bars (320).

3. The corrugated plate perforation structure according to claim 1, characterized in that, The corrugated plate composite structure (11) also includes a shear combination connector (500). The shear assembly connector (500) is disposed in the accommodating cavity and is covered by the micro-expansion concrete (400). The shear assembly connector (500) is connected to the trough of the corrugated plate (100).

4. The corrugated plate perforation structure according to claim 3, characterized in that, The shear force assembly connector (500) includes an arc plate (510), a flat plate (520), a shear force screw (530), and a plurality of shear force fastening nuts (540). The arc-shaped plate (510) is attached to the trough of the corrugated plate (100), and the two ends of the flat plate (520) are respectively connected to the arc-shaped plate (510). A plurality of shear fastening nuts (540) are threadedly engaged with the shear screw (530) to fasten the flat plate (520) and the arc-shaped plate (510) to the corrugated plate (100).

5. The corrugated plate perforation structure according to claim 1, characterized in that, The corrugated plate composite structure (11) also includes a shock-absorbing plate (600). The damping plate (600) is disposed between the corrugated plate (100) and the micro-expansion concrete (400).

6. The corrugated plate perforation structure according to claim 1, characterized in that, The corrugated plate shed structure (10) also includes anchor bolts (710), connecting nuts (720) and washers (730), and there are multiple corrugated plates (100); Along the length and / or circumferential direction of the corrugated plate perforation structure (10), two adjacent corrugated plates (100) are connected by the anchor bolt (710), the connecting nut (720) and the washer (730).

7. The corrugated plate perforation structure according to claim 1, characterized in that, The corrugated plate canopy structure (10) also includes foundation anchor bolts (810), angle steel (820) and foundation connecting bolts (830); The lower end of the corrugated plate (100) is connected to the angle steel (820) by the base connecting bolt (830); The foundation anchor bolt (810) is embedded in the side wall (12) and connected to the angle steel (820).

8. The corrugated plate perforation structure according to claim 1, characterized in that, The corrugated plate shed structure (10) also includes a shed top (910), a clay layer (920), and a backfill layer (930). The top of the hole (910) is located on the top of the outer template (200), and the top of the hole (910) has a sloping guide surface (911). The clay layer (920) and the backfill soil layer (930) are stacked sequentially on the tunnel top slope guide surface (911).

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