A shed hole structure for preventing power lines from falling off

Abstract

The utility model relates to the technical field of transportation, in particular to a shed tunnel structure for preventing power lines from falling off, comprising a corrugated steel arch frame, a leveling layer, an insulating layer, a fixed support and a foundation, wherein the outer surface of the corrugated steel arch frame is paved with a leveling layer, the outer surface of the leveling layer is flat, the outer surface of the leveling layer is connected to the insulating layer, a cushion block is arranged between the fixed support and the foundation, the corrugated steel arch frame is connected to the foundation through the fixed support, and the scheme improves the safety of high-speed driving at the intersection of power lines, the rigidity and stability of the corrugated steel arch frame provide a stable support for the fallen high-voltage power lines, and reduce the threat of the falling power lines to the driving on the lane, the cushion block can play a buffering role between the fixed support and the foundation, absorb and disperse the energy generated by the external force or natural disasters such as earthquakes, and the shed tunnel structure is safe and reliable, has high impact resistance, is simple to construct, and has low foundation bearing capacity requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation, in particular to a shed tunnel structure for preventing power lines from falling off. Background Art

[0002] With the continuous development of the transportation sector, the intersections of highways, railways and high-voltage power lines are increasing. When high-voltage power lines near these intersections fail or age, there is a risk that the lines will break and fall onto the highway or railway pavement in operation. Therefore, it is particularly important to take necessary protective measures in the intersection areas.

[0003] At present, in order to deal with the above problems, the common solution is to build permanent sheds made of steel or concrete. However, traditional steel sheds are easily damaged and have a limited service life when subjected to the impact load caused by the falling of high-voltage wires. On the other hand, although traditional concrete sheds are more stable, they are expensive, the construction process is complicated, and they are prone to cracks caused by uneven settlement, which in turn endangers the safety of the overall structure. In view of this, it is imperative to seek a more economical, efficient and safe cross-area protection solution. Utility Model Content

[0004] The purpose of the utility model is to solve the problems that the existing steel structure shed tunnels are easy to be damaged and the existing concrete shed tunnels are prone to uneven settlement cracks, which leads to a short life of the shed tunnels and affects the structural safety, and provides a shed tunnel structure that prevents power lines from falling off.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A shed tunnel structure for preventing power lines from falling off comprises a corrugated steel arch frame, a leveling layer, an insulating layer, a fixed support and a foundation. The outer surface of the corrugated steel arch frame is paved with a leveling layer, the outer surface of the leveling layer is flat, and the insulating layer is connected to the outer surface of the leveling layer. A pad is arranged between the fixed support and the foundation, and the corrugated steel arch frame is connected to the foundation through the fixed support.

[0007] This scheme recommends the use of corrugated steel arches as the main load-bearing structure. Corrugated steel plates refer to corrugated round tubes or curved corrugated steel plates made by corrugating and cold-bending hot-rolled steel plates or steel strips of a certain thickness according to specified dimensions. Due to the unique "accordion effect", corrugated steel plates have greater out-of-plane stiffness, which not only retains the advantages of flat steel plates but also overcomes their disadvantages, significantly reduces the out-of-plane deformation of steel plates, and improves the shear yield strength of steel plates, giving them better load-bearing stability.

[0008] A leveling layer is also laid on the outer surface of the corrugated steel arch frame. The purpose of laying the leveling layer is to fill the outer surface of the corrugated steel arch frame, increase the contact area with the upper insulating layer, and improve the connection stability with the insulating layer. The outer surface of the leveling layer needs to be flat to further improve the connection effect with the insulating layer, thereby reducing the risk of electric shock caused by the falling of high-voltage power lines. The insulating layer is used to protect the vehicles under the shed tunnel when the high-voltage power lines in the intersection areas of highways and railways fail or age, resulting in line breakage, and the lines fall off to the operating highway and railway pavement to prevent electric shock injuries to people, and effectively prevent the current from directly contacting the corrugated steel arch frame to form a conductive structure. At the same time, it also protects the lanes from the influence of harsh environments, such as wind, rain, frost, etc., to protect the driving safety of passing vehicles.

[0009] This solution also includes a foundation and a fixed support. The function of the foundation is to provide stable support to prevent the shed structure from moving or deforming under various external forces. The foundation is usually deep underground to increase the stability of the structure. The fixed support enables the corrugated steel arch frame to be firmly installed on the foundation. It is recommended that a pad is set between the fixed support and the foundation.

[0010] This scheme improves the safety of high-speed driving at the intersection of power lines. The rigidity and stability of the corrugated steel arch frame provide a solid support for the high-voltage power lines, reduce the threat of power lines falling off to the safety of driving on the lane, and have strong impact resistance. The pads are set between the fixed support and the foundation of the structure, which can effectively absorb the impact load, improve the impact resistance of the structure of this scheme, and thus improve the safety and reliability of the structure. The anti-electric shock effect is good. The outer surface of the structure is provided with an insulating layer to effectively isolate the falling high-voltage power lines from the driving road, avoid the hazard of electric shock, improve the safety of high-speed driving at the intersection of power lines, and adapt to complex environments. The structure can be flexibly designed and installed according to different terrain and environmental conditions, has strong adaptability, and can provide stable protective support in complex environments. Compared with the existing technology, the corrugated steel arch frame on the inner surface of the structure serves as a load-bearing structure and inner mold, eliminating the complex process of a large number of formwork supports required for concrete during construction, and improving construction efficiency. The shed tunnel structure is safe and reliable, has high impact resistance, is simple to construct, and has low foundation bearing capacity requirements. The pads set between the fixed support and the foundation are used to adjust the height and levelness to ensure the correct alignment and stable connection between the two, so as to ensure the verticality and stability of the shed tunnel structure to prevent the power line from falling off; increase the buffering effect, the pads can play a buffering role between the fixed support and the foundation, absorbing and dispersing the energy generated by external forces or natural disasters such as earthquakes. This can reduce the impact and damage to the structure and improve the impact resistance of the structure. The pads can be pre-made or adjusted as needed to facilitate installation and fixation; enhance the stability of the structure, the pads can enhance the connection stability between the fixed support and the foundation, and prevent loosening or displacement caused by vibration, wind and other factors. This can improve the stability of the entire structure and ensure the safe operation of high-voltage power lines and the safety of high-speed driving.

[0011] As a preferred solution of the utility model, the corrugated steel arch frame includes at least one corrugated steel plate, and adjacent corrugated steel plates are butt-jointed at the troughs and overlap-jointed at the crests.

[0012] In this solution, it is recommended that the corrugated steel arch frame includes at least one corrugated steel plate, and the adjacent corrugated steel plates are butt-jointed at the trough and overlapped at the crest. The shape characteristics of the corrugated steel plate make it have different stress characteristics at the trough and crest. Butt-jointing at the trough can make full use of the compressive properties of the corrugated steel plate, while overlapping at the crest can better exert its tensile properties. This design method can optimize material utilization and improve material utilization.

[0013] As a preferred solution of the utility model, the leveling layer includes concrete filler, and the concrete filler is poured on the outer surface of the corrugated steel arch frame.

[0014] In this solution, the leveling layer includes concrete filler, which is poured on the outer surface of the corrugated steel arch frame to improve the structural strength. Concrete is a high-strength material. Using it as a filler for the leveling layer can significantly improve the strength and stability of the overall structure, and further enhance the supporting capacity for high-voltage power lines; enhance durability. Concrete has good durability and corrosion resistance, and can withstand the influence of various harsh environments for a long time, such as wind, rain, ice and snow, to ensure the long-term use of the structure; reduce maintenance costs. Due to the durability of concrete, daily maintenance and repair work on the structure can be reduced, thereby reducing long-term maintenance costs; good insulation performance. Concrete is also an insulating material. Using concrete filler in the leveling layer can further enhance the insulation performance of the insulating layer and ensure the safe operation of the power line; strong adaptability. Concrete has good adaptability and can be flexibly constructed according to different terrains and environmental conditions to ensure a close connection and stable support between the leveling layer and the foundation.

[0015] As a preferred solution of the present invention, the leveling layer further comprises an anti-crack mesh, and the anti-crack mesh is laid inside the concrete filler.

[0016] This solution recommends that the leveling layer also include an anti-crack mesh, which is laid inside the concrete filler. The anti-crack mesh can effectively enhance the anti-crack performance of the leveling layer. Shrinkage cracks may occur in the concrete during the solidification process. Laying anti-crack mesh can absorb these shrinkage stresses and prevent the generation or expansion of cracks; the anti-crack mesh can be laid flat on the concrete surface to further enhance the surface flatness and provide a better foundation for the subsequent insulation layer construction; the anti-crack mesh combined with the concrete filler can further improve the overall strength and stability of the leveling layer and provide a more stable support for the fall of high-voltage power lines. The anti-crack mesh is easy to lay and fix, which can reduce the difficulty and time of construction; the use of anti-crack mesh can enhance the durability of the leveling layer, so that it remains stable during long-term use and is not prone to damage or aging; by enhancing the anti-crack performance and flatness of the leveling layer, the safety hazards caused by surface unevenness or cracks can be reduced, and the safety of line operation can be improved.

[0017] As a preferred embodiment of the present invention, the leveling layer further comprises a hollow steel pipe, which is laid on the outer surface of the corrugated steel arch frame and is arranged in a concrete filler.

[0018] This solution recommends that the leveling layer also include hollow steel pipes, which are laid on the outer surface of the corrugated steel arch frame and are arranged in concrete fillers. The hollow steel pipes are embedded in the concrete fillers to form a whole with the leveling layer, thereby enhancing the stability of the structure, which helps to improve the supporting capacity for high-voltage power lines and reduce the risk of line falling off; optimize the bearing capacity, the hollow steel pipes can be used as reinforcing components to improve the bearing capacity of the leveling layer, and when subjected to external forces, the hollow steel pipes can effectively transfer and disperse stress to prevent the structure from deformation or damage; improve construction efficiency, by pre-laying hollow steel pipes, the construction process can be simplified and work efficiency can be improved; reduce costs and reduce the amount of concrete fillers; enhance the ability to resist natural disasters, the combination of hollow steel pipes and concrete fillers can enhance the resistance of the shed tunnel structure to natural disasters to prevent the falling of power lines. For example, when an earthquake occurs, hollow steel pipes can absorb and disperse the energy generated by the earthquake, reducing damage to the structure; to enhance durability, by embedding the hollow steel pipes in concrete fillers, a protective layer can be formed to prevent corrosion of the steel pipes by external environmental factors. This helps to extend the service life of the structure and reduce maintenance and replacement work caused by corrosion.

[0019] As a preferred solution of the utility model, the diameter of the hollow steel pipe is matched with the height of the wave shape of the corrugated steel arch.

[0020] This solution recommends that the diameter of the hollow steel pipe be matched to the height of the corrugated steel arch. Through the matched diameter and corrugated height, the hollow steel pipe can better adapt to the shape and size of the corrugated steel arch. This can ensure a close connection and stable fixation between the two, improve the stability and reliability of the overall structure, and the matched diameter and corrugated height reduce the need for additional adjustment or adaptation of the steel pipe and the corrugated steel arch during the construction process. This can simplify the construction process, improve work efficiency, and reduce construction costs. Through the matched diameter and corrugated height, the hollow steel pipe can better disperse and transmit external forces and enhance the bearing capacity of the leveling layer and the entire structure. This helps to reduce the risk of structural deformation or damage and improve the stability and safety of the line.

[0021] As a preferred solution of the utility model, a hollow steel pipe is placed in each groove on the outer surface of the corrugated steel arch frame.

[0022] This proposal recommends placing a hollow steel pipe in each groove on the outer surface of the corrugated steel arch frame, which can ensure that the shed hole structure has sufficient impact resistance, greatly reduce the amount of concrete filling in the leveling layer, and reduce the project cost; optimize the bearing capacity, by placing a hollow steel pipe in each groove, the external force can be better dispersed and transmitted. This can reduce stress concentration, prevent deformation or damage to the structure, and improve the bearing capacity of the structure; the construction is simple, placing a hollow steel pipe in each groove can simplify the construction process and improve work efficiency.

[0023] As a preferred solution of the present utility model, the material of the cushion block is rubber.

[0024] This proposal recommends that the material of the pad is rubber. For cushioning performance, the rubber pad has good elasticity and cushioning performance, can absorb and disperse external forces, and reduce the impact and vibration on the structure. This helps to improve the stability and durability of the shed tunnel structure to prevent the power line from falling off; anti-aging performance, the rubber material has good anti-aging performance and can maintain a long service life under various environmental conditions. This helps to reduce the need for maintenance and replacement and reduce long-term operating costs; the rubber material has certain insulation properties and can be used as part of the insulation layer to enhance the insulation performance of the shed tunnel structure to prevent the power line from falling off; environmental sustainability, the rubber pad can be recycled and reused, is environmentally sustainable, and is in line with the trend of modern green energy development.

[0025] As a preferred embodiment of the utility model, the fixed support includes embedded parts, support parts and support part connecting parts, the two support parts are arranged on the inner and outer surfaces of the corrugated steel arch frame at the arch foot, the embedded parts are embedded in the foundation, the embedded parts are connected to the support parts, and the support part connecting parts connect the corrugated steel arch frame and the support parts on the inner and outer surfaces of the corrugated steel arch frame at the arch foot.

[0026] In this solution, the support connector connects the corrugated steel arch frame and the support member, which can transfer pressure and tension to the support member and then disperse it to the foundation. This design improves the bearing capacity of the structure and reduces deformation or damage caused by external forces. The embedded parts are pre-buried in the foundation, and the support member is connected to the embedded parts. The support connector connects the corrugated steel arch frame to the support member. This combination method simplifies the construction process, improves installation efficiency, and reduces construction difficulty. Fixing the angle steel in the foundation through the embedded parts can reduce the impact of external environmental factors on the fixed support, such as corrosion, vibration, etc. This can extend the service life of the fixed support and reduce the need for maintenance and replacement.

[0027] As a preferred solution of the utility model, the embedded parts are anchor bolts.

[0028] Anchor bolts are a common connector in construction and mechanical design. They can be fixed to concrete frame structures. Pre-embedded anchor bolts are fixed in the concrete foundation before construction, and have a good combination with concrete, so that they have higher fixing strength, can better fix the building, and improve its earthquake resistance, wind resistance and other capabilities. Through pre-embedded anchor bolts, the concrete can be fixed before entering the solidification period, simplifying the construction process, reducing the construction period, and reducing the impact on the construction site. Pre-embedded anchor bolts eliminate the bolt fixing link and reduce the construction period. Pre-embedded bolts are generally fixed before pouring concrete, and then there is no need to fix the bolts, which saves a lot of time. For engineering projects with tight construction periods, pre-embedded anchor bolts can improve the progress of the project and shorten the construction period.

[0029] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0030] 1. This scheme improves the safety of high-speed driving at the intersection of power lines. The rigidity and stability of the corrugated steel arch frame provide a solid support for the high-voltage power lines, reduce the threat of power lines falling off to the safety of driving on the lane, and have strong impact resistance. The pads are set between the fixed support and the foundation of the structure, which can effectively absorb the impact load, improve the impact resistance of the structure of this scheme, and thus improve the safety and reliability of the structure. The anti-electric shock effect is good. The outer surface of the structure is provided with an insulating layer to effectively isolate the falling high-voltage power lines from driving, avoid the hazard of electric shock, improve the safety of the structure, and adapt to complex environments. The structure can be flexibly designed and installed according to different terrain and environmental conditions, with strong adaptability, and can provide stable protective support in complex environments. Compared with the existing technology, the corrugated steel arch frame on the inner surface of the structure serves as a load-bearing structure and inner mold, eliminating the complex process of a large number of formwork supports required for concrete during construction, and improving construction efficiency. The shed tunnel structure is safe and reliable, has high impact resistance, is simple to construct, and has low foundation bearing capacity requirements. The pads set between the fixed support and the foundation are used to adjust the height and level. The pads can be used to adjust the height and level between the fixed support and the foundation to ensure the correct alignment and stable connection between the two, so as to ensure the verticality and stability of the shed tunnel structure to prevent the power line from falling off; increase the buffering effect. The pads can play a buffering role between the fixed support and the foundation, absorbing and dispersing the energy generated by external forces or natural disasters such as earthquakes. This can reduce the impact and damage to the structure and improve the impact resistance of the structure. The pads can be pre-made or adjusted as needed to facilitate installation and fixation; enhance the stability of the structure. The pads can enhance the connection stability between the fixed support and the foundation to prevent loosening or displacement caused by vibration, wind and other factors. This can improve the stability of the entire structure and ensure the safe operation of high-voltage power lines and the safety of high-speed driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a shed tunnel structure for preventing power lines from falling off according to the utility model;

[0032] Figure 2 It is a cross-sectional structural schematic diagram of a shed tunnel structure for preventing power lines from falling off according to the utility model;

[0033] Figure 3 It is a structural schematic diagram of a fixed support of a shed tunnel structure for preventing power lines from falling off according to the utility model;

[0034] Icons: 1-corrugated steel arch; 2-leveling layer; 21-hollow steel pipe; 22-anti-crack mesh; 23 concrete filler; 3-insulating layer; 4-fixed support; 41-embedded parts; 42-support parts; 43-support part connectors; 44-pads; 5-foundation. DETAILED DESCRIPTION

[0035] The utility model is described in detail below in conjunction with the accompanying drawings.

[0036] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0037] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] Example 1

[0039] like Figure 1 As shown, the utility model adopts a shed tunnel structure for preventing power lines from falling off, comprising a corrugated steel arch frame 1, a leveling layer 2 and an insulating layer 3. The outer surface of the corrugated steel arch frame 1 is paved with the leveling layer 2, the outer surface of the leveling layer 2 is flat, and the insulating layer 3 is connected to the outer surface of the leveling layer 2.

[0040] Specifically, Figure 2 and Figure 3As shown, the corrugated steel arch frame 1 is formed by hot-rolled steel plate with strength not less than Q345B, and its surface is hot-dip galvanized to improve the durability of the steel arch. The corrugated steel arch frame 1 includes at least one corrugated steel plate, and adjacent corrugated steel plates are connected to each other, the corrugated steel plates are butt-welded at the troughs and overlap-welded at the crests. The leveling layer 2 is composed of a hollow steel pipe 21, an anti-crack mesh 22, and a concrete filler 23. The hollow steel pipe 21 acts as a skeleton and reduces the amount of concrete filler. The anti-crack mesh 22 can improve the anti-crack performance of the concrete filler. The concrete filler 23 is cast on the outer surface of the corrugated steel arch frame 1, and the anti-crack mesh 22 is laid inside the concrete filler 23. The hollow steel pipe 21 is laid on the outer surface of the corrugated steel arch frame 1, and the hollow steel pipe 21 is arranged in the concrete filler 23.

[0041] In this embodiment, the diameter of the hollow steel pipe 21 is determined according to the wave height of the combined corrugated steel arch 1. The higher the wave height, the larger the pipe diameter. A hollow steel pipe 21 is placed in each groove on the outer surface of the corrugated steel arch frame 1. After the hollow steel pipe 21 and the anti-crack mesh 22 are set, the concrete filler 23 is filled.

[0042] It also includes a fixed support 4 and a foundation 5. The fixed support 4 is composed of an embedded part 41, a support part 42, a support part connecting part 43, and a pad 44. The corrugated steel arch frame 1 is connected to the foundation 5 through the fixed support 4. In this embodiment, the embedded part 41 can be an anchor bolt, the support part 42 can be an angle steel, the support part connecting part 43 can be a bolt, and the pad 44 can be a rubber pad.

[0043] The specific connection method is that bolts are used to fix the combined corrugated steel arch 1 to the two angle steels, and at the same time, embedded parts 41 anchor bolts are embedded in the reinforced concrete foundation 5. The anchor bolts pass through the pads 44 and then connect the two equilateral angle steels to connect the combined corrugated steel arch 1 to the foundation 5. When the high-voltage power line is broken and falls off, the pads 44 act as elastic buffers to improve the deformation resistance of the shed-hole structure under the impact load.

[0044] Example 2

[0045] The difference between Example 2 and Example 1 is that the anti-crack mesh 22 of Example 2 adopts a steel mesh, which is mainly composed of steel bars, has high strength and rigidity, and is suitable for places that need to bear large loads. Ordinary anti-crack meshes may be made of metal wires or plastic wires, and have a relatively simple structure. The steel mesh has a better bearing effect. The steel mesh is mainly used to improve the integrity, crack resistance and durability of the concrete structure, and is suitable for projects with high requirements for structural performance. The steel mesh is usually prefabricated in the factory, which can save processing time at the construction site and improve construction efficiency.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A shed tunnel structure for preventing power lines from falling off, characterized in that: The invention comprises a corrugated steel arch frame (1), a leveling layer (2), an insulating layer (3), a fixed support (4) and a foundation (5); the outer surface of the corrugated steel arch frame (1) is paved with a leveling layer (2); the outer surface of the leveling layer (2) is flat; the insulating layer (3) is connected to the outer surface of the leveling layer (2); a cushion block (44) is arranged between the fixed support (4) and the foundation (5); and the corrugated steel arch frame (1) is connected to the foundation (5) via the fixed support (4).

2. A shed tunnel structure for preventing power lines from falling off according to claim 1, characterized in that: The corrugated steel arch frame (1) comprises at least one corrugated steel plate, and adjacent corrugated steel plates are butt-jointed at the troughs and overlap-jointed at the crests.

3. A shed tunnel structure for preventing power lines from falling off according to claim 1, characterized in that: The leveling layer (2) comprises a concrete filler (23) which is poured on the outer surface of the corrugated steel arch (1).

4. A shed tunnel structure for preventing power lines from falling off according to claim 3, characterized in that: The leveling layer (2) further comprises an anti-crack mesh (22), and the anti-crack mesh (22) is laid inside the concrete filler (23).

5. The shed tunnel structure for preventing power line from falling off according to claim 3 is characterized in that: The leveling layer (2) further comprises a hollow steel pipe (21), wherein the hollow steel pipe (21) is laid on the outer surface of the corrugated steel arch frame (1), and the hollow steel pipe (21) is arranged in a concrete filler (23).

6. A shed tunnel structure for preventing power lines from falling off according to claim 5, characterized in that: The diameter of the hollow steel pipe (21) is adapted to the height of the corrugated steel arch (1).

7. The shed tunnel structure for preventing power lines from falling off according to claim 5, characterized in that: A hollow steel pipe (21) is placed in each groove on the outer surface of the corrugated steel arch frame (1).

8. The shed tunnel structure for preventing power lines from falling off according to claim 1, characterized in that: The cushion block (44) is made of rubber.

9. The shed tunnel structure for preventing power line from falling off according to claim 1, characterized in that: The fixed support (4) comprises an embedded part (41), a support part (42) and a support part connecting part (43); the two support parts (42) are arranged on the inner and outer surfaces of the arch foot of the corrugated steel arch frame (1); the embedded part (41) is embedded in the foundation (5); the embedded part (41) connects the support part (42); and the support part connecting part (43) connects the corrugated steel arch frame (1) and the support part (42) on the inner and outer surfaces of the arch foot of the corrugated steel arch frame (1).

10. A shed tunnel structure for preventing power lines from falling off according to claim 9, characterized in that: The embedded part (41) is a foundation bolt.

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