A road surface structure suitable for a smart track
By designing a concrete base layer and trapezoidal track structure on the intelligent rail road surface, the problem of reduced road surface smoothness caused by the intelligent rail vehicle's rolling is solved, road surface strength is improved and safety is enhanced, and cable routing channels are provided.
Patent Information
- Application Number
- CN202522131862.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-09
AI Technical Summary
When intelligent rail vehicles travel along a fixed track for a long time, the smoothness of the asphalt concrete pavement decreases, forming deep grooves or ruts, which affects safe operation.
Design a road structure comprising a concrete base, trapezoidal track strips, and an asphalt concrete surface layer. The track strips have cavities for cable routing and are coated with reflective paint. The track strips are flush with the asphalt concrete surface layer to form a seamless road, enhancing the road surface strength and smoothness.
It improves road surface strength, reduces rutting, extends road lifespan, provides safe access for cable installation, and enhances driving safety.
Smart Images
Figure CN224678440U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rail transit technology, specifically relating to a road surface structure suitable for intelligent rail transit. Background Technology
[0002] Intelligent Rail Transit (IRT) is a new type of rail transit system that uses virtual trajectory tracking and control technology. It is a transportation system that achieves automatic guidance and trackless operation through a multi-axis steering system. As of December 2023, IRT has been successfully applied in multiple cities including Yibin, Zhuzhou, Suzhou, Xi'an, and Harbin, becoming an important part of urban public transportation. IRT combines the advantages of rail transit and buses, featuring controllable travel trajectories, energy efficiency, environmental friendliness, and high punctuality. Because of the fixed routes of intelligent rail transit (ART), the vehicles tend to repeatedly compact the road surface at fixed locations over long periods of time. Current ART roads use traditional asphalt concrete pavement, and the constant movement of the ART wheels along these fixed lines damages the asphalt surface, creating deep ruts or grooves, sometimes reaching depths of up to 8 centimeters. This compromises the safe operation of the ART and poses a danger to pedestrians, motor vehicles, motorcycles, and bicycles.
[0003] Therefore, it is necessary to design a road surface structure with higher structural strength that is suitable for intelligent rail transit. Utility Model Content
[0004] To address the aforementioned problems in existing technologies, this solution provides a road surface structure suitable for intelligent rail transit.
[0005] The technical solution adopted in this utility model is as follows: A road surface structure suitable for intelligent rail transit includes: Concrete base; The track strips are fixedly installed on the concrete base and have a trapezoidal structure that is wider at the bottom and narrower at the top. Several track strips are laid along the preset path of the intelligent rail system, and adjacent track strips are connected together. The joints between adjacent track strips are filled with sealant. The track strips have cavities inside, which can be used for cable routing. The upper surface of the track strips is coated with reflective paint. An asphalt concrete surface layer is set on the concrete base layer and located on the left and right sides of the track; the left and right sides of the track are in contact with the asphalt concrete surface layer.
[0006] As an alternative to the above structure: the track bar includes a top plate, a bottom plate, and supporting uprights; the top plate is located above the bottom plate, and the top plate and the bottom plate are connected by multiple supporting uprights.
[0007] As an alternative to the above structure: the upper edge of the support plate is welded vertically to the top plate, and the lower edge of the support plate is welded vertically to the bottom plate.
[0008] As an alternative to the above structure: the width of the base plate is greater than the width of the top plate, and a reinforcing rib is connected between the base plate and the supporting upright plate.
[0009] As an alternative to the above structure, the base plate is fixedly connected to the concrete base layer by expansion bolts.
[0010] As an alternative to the above structure: a conduit is provided inside the cavity, and the cable is placed inside the conduit.
[0011] As an alternative to the above structure, the track bar is either straight or curved in the length direction.
[0012] As an alternative to the above structure: several of the track strips are laid on a concrete base to form two tracks; angle steel is embedded in the road base beneath the concrete base; the angle steel is located between the two tracks and is connected to the track strips of the two tracks by flat iron to serve as a lightning protection grounding wire; the track strips are made of steel.
[0013] As an alternative to the above structure, adjacent track bars on the same track are electrically connected by copper core wires.
[0014] The beneficial effects of this utility model are as follows: 1. In this solution, the embedded track strips can effectively improve the road surface strength in the intelligent rail transit area. At the same time, the asphalt concrete surface is flush with the track strips, ensuring the smoothness of the road surface. This ensures that during the long-term reciprocating travel of the intelligent rail along the same path, the weight of the train is always applied to the track, which is less likely to damage the structure of the asphalt concrete surface and improves the service life of the road. 2. This solution can reduce the probability of ruts forming on the road surface due to the operation of the intelligent rail system, and can even permanently eliminate the damage of trains to the asphalt concrete surface, reducing the frequency of road maintenance. In addition, the cavities in the track can also be used for the routing of communication cables, providing a safe installation channel for communication cables. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0016] Figure 1 This is a schematic diagram of the road surface structure applicable to intelligent rail transit in this scheme; Figure 2 This is a schematic diagram of a linear track. Figure 3 This is a detailed structural diagram of the track bar; Figure 4 This is a schematic diagram of a curved track.
[0017] In the diagram: 1-Reflective paint; 2-Top plate; 3-Supporting upright plate; 4-Bottom plate; 5-Reinforcing rib plate; 6-Expansion bolt; 7-Gap filler; 8-Copper core wire; 9-Flat iron; 10-Angle steel; 11-Conduit; 12-Asphalt concrete surface layer; 13-Concrete base layer. Detailed Implementation
[0018] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.
[0019] Example like Figures 1 to 4 As shown, this embodiment designs a road surface structure suitable for intelligent rail transit, including a concrete base layer 13, track strips, asphalt concrete surface layer 12, and other structures.
[0020] The concrete base layer 13 is a structure made of poured concrete.
[0021] The track strips are fixedly installed on the concrete base layer 13. The track strips have a trapezoidal structure that is wider at the bottom and narrower at the top, thereby increasing the contact area between the lower part of the track strip and the concrete base layer 13. Two tracks are laid on the concrete base layer 13, and each track is composed of several track strips spliced together. Several track strips are laid along the preset path of the intelligent rail system, and adjacent track strips are connected together.
[0022] A gap filler 7 is installed at the joint between adjacent track strips. The gap filler 7 can be a neutral weather-resistant adhesive, which not only fills the joint and improves the aesthetics, but also makes the joint waterproof.
[0023] The track bar has a cavity for cable routing. Both communication cables and power cables can pass through the cavity, and the track bar protects the cables, improving their safety. A conduit 11 can be installed inside the cavity, and the cable is placed inside the conduit 11, further protecting the conduit 11.
[0024] The upper surface of the track strip is coated with reflective paint 1, which facilitates the identification of the track strip by pedestrians or cameras on the intelligent rail system, improving the reliability of the intelligent rail system's identification of the track strip. This allows the intelligent rail system to travel along the track strip without crushing the asphalt concrete surface layer 12 on both sides of the track strip, thus improving road safety.
[0025] The asphalt concrete surface layer 12 is set on the concrete base layer 13 and is located on both sides of the track strip. The left and right sides of the track strip are connected to the asphalt concrete surface layer 12, so that the asphalt concrete surface layer 12 and the track strip can form a seamless road. In addition, the upper surface of the asphalt concrete surface layer 12 is flush with the upper surface of the track strip, thereby ensuring the smoothness of the road surface.
[0026] Several track strips are laid on a concrete base layer 13 to form two tracks; angle steel 10 is embedded in the road base layer below the concrete base layer 13; the angle steel 10 is located between the two tracks and is connected to the track strips of the two tracks by flat iron 9, serving as a lightning protection grounding wire, thereby conducting the electricity on the track strips to the ground to achieve lightning protection grounding; the track strips are made of steel so that they can be energized by themselves. Adjacent track strips of the same track are electrically connected by copper core wires 8, thereby achieving energization between adjacent track strips.
[0027] The track strips are either straight or curved along their length. Straight track strips are used for laying straight tracks, while curved track strips are used for laying curved tracks.
[0028] The track bar includes a top plate 2, a bottom plate 4, and supporting uprights 3. The top plate 2 is located above the bottom plate 4, and the top plate 2 and the bottom plate 4 are connected by multiple supporting uprights 3. The top plate 2, the bottom plate 4, and the supporting uprights 3 form a cavity. The upper edge of the supporting uprights 3 is welded perpendicularly to the top plate 2, and the lower edge of the supporting uprights 3 is welded perpendicularly to the bottom plate 4, thus making the track bar form a structure that is narrower at the top and wider at the bottom.
[0029] The width of the base plate 4 is greater than the width of the top plate 2. A reinforcing rib 5 is connected between the base plate 4 and the supporting upright plate 3. The side surface of the reinforcing rib 5 is welded to the corresponding supporting upright plate 3, and the bottom surface of the reinforcing rib 5 is welded to the upper surface of the base plate 4.
[0030] Multiple bolt holes are arranged on the base plate 4 for expansion bolts 6 to pass through, so that the base plate 4 is fixedly connected to the concrete base layer 13 by the expansion bolts 6. Through holes are also provided on the reinforcing rib plate 5 at the end of the track bar. When two adjacent track bars are joined together, bolts can be passed through the through holes on the reinforcing rib plate 5 to pull the reinforcing rib plates 5 of the two track bars closer together, thereby improving the firmness of the track bar joint.
[0031] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.
Claims
1. A road surface structure suitable for intelligent rail transit, characterized in that: include: Concrete base layer (13); The track bar is fixedly installed on the concrete base (13) and has a trapezoidal structure that is wider at the bottom and narrower at the top; Several track strips are laid along the preset path of the intelligent rail, adjacent track strips are connected together, and gap filler is provided at the joint between adjacent track strips (7); the track strips are provided with cavities, which can be used for cable routing; the upper surface of the track strips is coated with reflective paint (1). The asphalt concrete surface layer (12) is set on the concrete base layer (13) and located on the left and right sides of the track; the left and right sides of the track are connected to the asphalt concrete surface layer (12).
2. The road surface structure suitable for intelligent rail transit according to claim 1, characterized in that: The track includes a top plate (2), a bottom plate (4), and supporting uprights (3); the top plate (2) is located above the bottom plate (4), and the top plate (2) and the bottom plate (4) are connected by multiple supporting uprights (3).
3. The road surface structure suitable for intelligent rail transit according to claim 2, characterized in that: The upper edge of the support plate (3) is welded vertically to the top plate (2), and the lower edge of the support plate (3) is welded vertically to the bottom plate (4).
4. The road surface structure suitable for intelligent rail transit according to claim 3, characterized in that: The width of the base plate (4) is greater than the width of the top plate (2), and a reinforcing rib plate (5) connects the base plate (4) and the supporting upright plate (3).
5. The road surface structure suitable for intelligent rail transit according to claim 2, characterized in that: The base plate (4) is fixedly connected to the concrete base layer (13) by expansion bolts (6).
6. The road surface structure suitable for intelligent rail transit according to claim 1, characterized in that: The cavity is provided with a conduit (11), and the cable is placed inside the conduit (11).
7. The road surface structure suitable for intelligent rail transit according to claim 1, characterized in that: The track bar is either straight or curved along its length.
8. The road surface structure suitable for intelligent rail transit according to any one of claims 1-7, characterized in that: Several of the track strips are laid on the concrete base (13) to form two tracks; angle steel (10) is embedded in the road base below the concrete base (13); the angle steel (10) is located between the two tracks and is connected to the track strips of the two tracks by flat iron (9) to be used as a lightning protection grounding wire; the track strips are made of steel.
9. The road surface structure suitable for intelligent rail transit according to claim 8, characterized in that: Adjacent track bars on the same track are electrically connected by copper core wires (8).