Novel pavement structure

By introducing reinforcement mechanisms and a base course design filled with sand and gravel into the pavement structure, the connection between the base course and the surface course is enhanced, solving the problem of easy deformation and separation of cold-mix asphalt layers from the base course, and improving the pavement's performance and lifespan.

CN223936927UActive Publication Date: 2026-02-24HUNAN COMM INT ECONOMIC ENG COOP +2
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Patent Information

Application Number
CN202520039780.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2026-02-24
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

With the increase in traffic volume and heavy vehicles, the existing road structure is prone to deformation and separation of the cold-mix asphalt layer from the base layer, resulting in decreased performance and shortened service life, thus increasing economic losses.

Method used

The reinforcement mechanism, through the connecting columns and slot structure of the top and bottom frames, enhances the connection between the base layer and the surface layer. The design of the gravel-filled base layer and the cold-mix asphalt layer improves the overall stability of the pavement structure.

Benefits of technology

This effectively prevents deformation and separation of the cold-mix asphalt layer from the base layer, improves the performance and lifespan of the road surface, and reduces economic losses.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223936927U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel pavement structure which comprises a foundation, a pavement is arranged above the foundation, the pavement comprises a cushion layer, a base layer and a surface layer, a reinforcing mechanism is installed at the joint of the base layer and the surface layer, and the reinforcing mechanism comprises a top frame located in the surface layer and a bottom frame located in the cushion layer. Connecting columns are installed between the top frame and the bottom frame, and the connecting columns intersect to form an X-shaped structure. By arranging the reinforcing mechanism, the top frame and the bottom frame in the reinforcing mechanism can be located in the base layer and the surface layer correspondingly, the top frame and the bottom frame are connected through the connecting column of the X-shaped structure, and in the using process of a road, the connecting force between the base layer and the surface layer can be increased through the reinforcing mechanism; therefore, cold-mixed asphalt at the top end of the pavement can be prevented from being stressed to deform and be separated from a base layer to be damaged, the usability of the pavement is improved, the service life is prolonged, and economic loss is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of road surface technology, and in particular to a novel road surface structure. Background Technology

[0002] With the rapid development of society and economy, the highway industry, as one of the infrastructures, is also developing rapidly. Society's requirements for high-quality and high-performance highways are increasing day by day, and safe, comfortable and fast driving has become a basic need for people.

[0003] However, with the improvement of people's living standards and the rapid development of social construction, the volume of transportation and the number of large-tonnage vehicles have increased dramatically. This has caused the cold-mixed asphalt at the top of the existing road surface to deform under stress and separate from the base layer, which has affected the performance and service life of the road surface and increased economic losses. Utility Model Content

[0004] The main purpose of this utility model is to provide a new type of road surface structure.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] A novel road surface structure includes a foundation, on which a road surface is provided. The road surface includes a subbase, a base course, and a surface course. A reinforcement mechanism is installed at the connection between the base course and the surface course. The reinforcement mechanism includes a top frame located within the surface course and a bottom frame located within the base course. A connecting column is installed at the bottom end of the top frame, and a slot is provided at the top end of the bottom frame. The top frame and the bottom frame are connected through the connecting column and the slot.

[0007] Preferably, the base layer includes an upper base layer and a lower base layer, and both the upper base layer and the lower base layer are filled with sand and gravel.

[0008] Preferably, the cushion layer is located between the foundation and the base layer.

[0009] Preferably, the cushion layer is filled with crushed stone.

[0010] Preferably, the surface layer includes a surface layer, an intermediate layer, and a bottom layer.

[0011] Preferably, the surface layer, the intermediate layer, and the bottom layer are all made of cold-mix asphalt.

[0012] Preferably, the gaps between asphalt molecules between the surface layer, the intermediate layer, and the bottom layer increase sequentially.

[0013] Preferably, the foundation is a rammed soil layer.

[0014] The beneficial effects of this technology are:

[0015] By setting up a reinforcement mechanism, the top frame inside the reinforcement mechanism can be fixed in the lower layer, while the bottom frame is fixed in the upper base layer. The reinforcement mechanism increases the connection between the base layer and the surface layer, thereby preventing the cold-mixed asphalt at the top of the road surface from deforming and separating from the base layer under stress, improving the performance and service life of the road surface, and reducing economic losses. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a preferred embodiment of a novel road surface structure according to the present invention;

[0017] Figure 2 This is a main sectional view of a preferred embodiment of a novel road surface structure according to the present invention;

[0018] Figure 3 This is a schematic diagram of the reinforcement mechanism in a preferred embodiment of a novel road surface structure according to the present invention.

[0019] The annotations in the attached figures are explained as follows:

[0020] 1. Foundation; 2. Road surface; 21. Subbase; 22. Base course; 2201. Upper base course; 2202. Lower base course; 23. Surface course; 2301. Surface layer; 2302. Intermediate layer; 2303. Lower layer; 3. Reinforcing mechanism; 31. Top frame; 32. Base frame; 33. Connecting column; 34. Slot. Detailed Implementation

[0021] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0022] like Figures 1-3 As shown, this embodiment provides a novel road structure, including a foundation 1, with a road surface 2 disposed on top of the foundation 1. The road surface 2 includes a subbase 21, a base course 22, and a surface course 23. A reinforcement mechanism 3 is installed at the connection between the base course 22 and the surface course 23. The reinforcement mechanism 3 includes a top frame 31 located in the surface course 23 and a bottom frame 32 located in the base course 22. A connecting column 33 is installed at the bottom end of the top frame 31, and a slot 34 is provided at the top end of the bottom frame 32. The top frame 31 and the bottom frame 32 are connected through the connecting column 33 and the slot 34, which facilitates the connection between the top frame 31 and the bottom frame 32 through the connecting column 33 and the slot 34, thereby strengthening the connection between the base course 22 and the surface course 23.

[0023] like Figures 1-2 As shown, the base layer 22 includes an upper base layer 2201 and a lower base layer 2202, and both the upper base layer 2201 and the lower base layer 2202 are filled with sand and gravel to facilitate support of the surface layer 23 through the upper base layer 2201 and the lower base layer 2202.

[0024] like Figures 1-2 As shown, the subbase 21 is located between the foundation 1 and the base course 22. It can support the road surface 2, and the water in the road surface 2 can be diverted through the subbase 21.

[0025] like Figures 1-2 As shown, the subbase 21 is filled with crushed stone, which can ensure the permeability of the subbase 21.

[0026] like Figures 1-2 As shown, the surface layer 23 includes a surface layer 2301, a middle layer 2302, and a bottom layer 2303, which facilitates the formation of a road surface 2 for vehicles to travel on through the surface layer 2301, the middle layer 2302, and the bottom layer 2303.

[0027] like Figures 1-2 As shown, the surface layer 2301, the intermediate layer 2302 and the bottom layer 2303 are all made of cold-mix asphalt. The surface layer 23 made of cold-mix asphalt can reduce the consumption of fossil energy, reduce environmental pollution and reduce the harm to the health of on-site production and application personnel during the production process.

[0028] like Figures 1-2 As shown, the gaps between asphalt molecules in the surface layer 2301, the intermediate layer 2302, and the bottom layer 2303 increase sequentially, facilitating shock absorption through the surface layer 2301, the intermediate layer 2302, and the bottom layer 2303.

[0029] like Figures 1-2 As shown, foundation 1 is a rammed soil layer, which can support the road.

[0030] The working principle of this device is as follows: In practical use, the foundation layer 21 of the crushing mechanism is laid flat on the compacted foundation 1. Then, the lower base layer 2202 and the upper base layer 2201 are laid on top of the foundation layer 21 in sequence. When laying the upper base layer 2201, the worker embeds the base frame 32 of the fixing mechanism 3 into the upper base layer 2201, and then flattens the upper base layer 2201. At this time, the top of the base frame 32 is flush with the top of the upper base layer 2201. Then, the top frame 31 in the fixing mechanism 3 is connected to the slot 3 via the connecting column 33. 4. After being connected to the base frame 32 and fixed, the lower layer 2303, the middle layer 2302 and the upper layer 2301 are laid sequentially on the top of the upper base layer 2201. The top frame 31 in the reinforcement mechanism 3 is fixed in the lower layer 2303, and the base frame 32 is fixed in the upper base layer 2201. The reinforcement mechanism 3 increases the connection force between the base layer 22 and the surface layer 23, thereby preventing the cold-mixed asphalt at the top of the road surface 2 from deforming and separating from the base layer 22 under stress, improving the performance and service life of the road surface 2, and reducing economic losses.

[0031] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.

Claims

1. A novel pavement structure, characterized in that: The system includes a foundation (1), a road surface (2) is provided above the foundation (1), the road surface (2) includes a subbase (21), a base layer (22) and a surface layer (23), and a reinforcement mechanism (3) is installed at the connection between the base layer (22) and the surface layer (23). The reinforcement mechanism (3) includes a top frame (31) located in the surface layer (23) and a bottom frame (32) located in the base layer (22). A connecting column (33) is installed at the bottom end of the top frame (31), and a slot (34) is provided at the top end of the bottom frame (32). The top frame (31) and the bottom frame (32) are connected by the connecting column (33) and the slot (34).

2. The novel pavement structure according to claim 1, characterized in that: The base layer (22) includes an upper base layer (2201) and a lower base layer (2202), and both the upper base layer (2201) and the lower base layer (2202) are filled with sand and gravel.

3. The novel pavement structure according to claim 2, characterized in that: The cushion layer (21) is located between the foundation (1) and the base layer (22).

4. The novel pavement structure according to claim 3, characterized in that: The cushion layer (21) is filled with crushed stone.

5. A novel pavement structure according to claim 4, characterized in that: The surface layer (23) includes a surface layer (2301), a middle layer (2302), and a bottom layer (2303).

6. A novel pavement structure according to claim 5, characterized in that: The surface layer (2301), the intermediate layer (2302), and the bottom layer (2303) are all made of cold-mixed asphalt.

7. A novel pavement structure according to claim 6, characterized in that: The gaps between asphalt molecules in the surface layer (2301), the intermediate layer (2302), and the bottom layer (2303) increase sequentially.

8. A novel pavement structure according to claim 7, characterized in that: The foundation (1) is a rammed soil layer.