Prefabricated assembly type asphalt pavement structure

By introducing connecting bolts, sleeves, and T-clamps into precast asphalt pavements, and combining this with multiple pours of self-leveling cement, the integrity and stability issues of precast asphalt pavement structures have been resolved, enabling convenient installation and simplified maintenance.

CN224133490UActive Publication Date: 2026-04-17JIUJIANG XINYUE ASPHALT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIUJIANG XINYUE ASPHALT CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Precast asphalt pavement structures lack integrity and robustness, are prone to loosening at joints, and are complex to maintain and disrupt traffic.

Method used

The design employs asphalt pavement blocks, connecting bolts, sleeve fittings, and connecting nuts. Adjacent pavement blocks are connected via sleeve fittings, and T-shaped clamps are used to enhance connection stability. Multiple pours of self-leveling cement are combined to ensure locking and sealing.

Benefits of technology

It improves the overall stability and ease of installation of the road structure, simplifies the maintenance process, and reduces traffic disruption and resource waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a prefabricated assembly type asphalt pavement structure, which belongs to the technical field of asphalt pavements, and comprises an asphalt pavement block, connecting bolts, a sleeve piece and connecting nuts, two ends of the asphalt pavement block are respectively provided with an upper bayonet and a lower bayonet, the upper bayonet is provided with a plurality of connecting bolts, the outer side of the sleeve piece is poured with self-leveling cement for the first time, and the lower bayonet is provided with self-leveling cement for the second time. Connecting nuts are installed, the locking state is kept, self-leveling cement is poured for the second time after locking, at the moment, the self-leveling cement is poured into the sleeve till the self-leveling cement is flush with the asphalt pavement block, and it needs to be noted that the self-leveling cement is not poured and flush with the asphalt pavement block, a little asphalt is supplemented in the later period, and the appearance consistency is kept; the T-shaped clamping pieces are clamped, asphalt is poured on the periphery of the edge to keep sealing and connection consistency, overall installation is convenient, and allowance is reserved in a later maintenance space and a corresponding anti-deformation space.
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Description

Technical Field

[0001] This utility model belongs to the field of asphalt pavement technology, specifically a prefabricated assembled asphalt pavement structure. Background Technology

[0002] Asphalt pavement, with its excellent smoothness and anti-skid properties, provides a smooth and comfortable driving experience and is widely used in road construction. It also reduces traffic noise pollution due to its low noise level, and its smooth surface reduces vehicle bumps, improving driving safety and comfort. Furthermore, asphalt pavement is relatively easy to construct, allowing for faster opening to traffic.

[0003] The application of prefabricated assembly technology to asphalt pavement construction has demonstrated numerous advantages. It allows for the prefabrication of pavement components in factories, significantly shortening on-site construction time and reducing traffic disruption. Simultaneously, factory production enables precise quality control, reduces material waste, achieves energy conservation and emission reduction, and is more environmentally friendly.

[0004] However, current precast asphalt pavements still have some shortcomings. The overall integrity and robustness of the pavement structure are insufficient. Under long-term, repeated vehicle loads, the connections between components are prone to loosening and displacement, affecting the pavement's service life. Furthermore, once damage occurs, the repair and replacement process is complex, requiring precise location of the damaged components, dismantling and reinstallation. This process is labor-intensive, resource-intensive, and time-consuming, and also significantly impacts traffic. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] This utility model discloses a prefabricated assembled asphalt pavement structure, including asphalt pavement blocks, connecting bolts, sleeve fittings, and connecting nuts. The two ends of the asphalt pavement blocks are respectively provided with upper and lower clamping slots. Multiple connecting bolts are provided on the upper clamping slots, and multiple positioning holes are provided on the lower clamping slots. The positioning holes correspond one-to-one with the connecting bolts. The sleeve fittings are installed in the positioning holes, and the connecting nuts are connected to the connecting bolts. Adjacent asphalt pavement blocks are connected by sleeve fittings fitted onto the connecting bolts.

[0008] Preferably, a T-shaped fastener is provided between adjacent asphalt pavement blocks. The T-shaped fastener includes a cement substrate and an asphalt panel, with the asphalt panel attached to the cement substrate.

[0009] Preferably, each end of the asphalt pavement block is provided with an installation platform, the middle of the T-shaped clamp is inserted between adjacent asphalt pavement blocks, and the two ends of the T-shaped clamp are pressed on the installation platform.

[0010] Preferably, the thickness of the portion of the T-shaped clip inserted between adjacent asphalt pavement blocks is less than the distance between adjacent asphalt pavement blocks.

[0011] Preferably, the positioning hole is a countersunk hole, and the sleeve includes a first tube and a second tube, which are coaxial, and a connecting nut is pressed onto the second tube.

[0012] Preferably, the connecting nut is provided with post-cast self-leveling cement.

[0013] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0014] This utility model discloses a prefabricated assembled asphalt pavement structure. The outer side of the sleeve is first poured with self-leveling cement, then the connecting nut is installed and kept locked. After locking, a second layer of self-leveling cement is poured inside the sleeve, continuing until it is flush with the asphalt pavement block. It should be noted that it is also possible to skip this initial flush pour and add a little asphalt later to maintain a consistent appearance. After installation, the T-shaped clips are inserted, and asphalt is poured around the edges to maintain a tight seal and consistent connection. The overall installation is convenient, and sufficient space is provided for future maintenance and deformation prevention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a prefabricated asphalt pavement structure according to the present invention.

[0016] Figure 2 This is a schematic diagram of a prefabricated asphalt pavement structure according to the present invention.

[0017] Explanation of the labels in the diagram:

[0018] 100. Asphalt pavement block; 101. Upper clamp; 102. Lower clamp; 103. Installation platform; 110. T-shaped clamp;

[0019] 200. Connecting bolts;

[0020] 300. Sleeve fittings;

[0021] 400. Connecting nut. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0025] Furthermore, some of the aforementioned terms, besides indicating location or positional relationships, may also have other meanings. For example, the term "above" may, in certain circumstances, indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0026] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0028] See attached document Figure 1-2This embodiment of a prefabricated asphalt pavement structure includes asphalt pavement blocks 100, connecting bolts 200, sleeve fittings 300, and connecting nuts 400. The two ends of the asphalt pavement blocks 100 are respectively provided with an upper clamp 101 and a lower clamp 102. Multiple connecting bolts 200 are provided on the upper clamp 101, and multiple positioning holes are provided at the lower clamp 102. The positioning holes correspond one-to-one with the connecting bolts 200. The sleeve fittings 300 are installed in the positioning holes, and the connecting nuts 400 are connected to the connecting bolts 200. Adjacent asphalt pavement blocks 100 are connected by sleeve fittings 300 fitted onto the connecting bolts 200.

[0029] In this embodiment, a T-shaped clip 110 is provided between adjacent asphalt pavement blocks 100. The T-shaped clip 110 includes a cement substrate and an asphalt panel, with the asphalt panel attached to the cement substrate.

[0030] In this embodiment, both ends of the asphalt pavement block 100 are provided with an installation platform 103. The middle of the T-shaped clip 110 is inserted between adjacent asphalt pavement blocks 100, and both ends of the T-shaped clip 110 are pressed on the installation platform 103.

[0031] In this embodiment, the thickness of the portion of the T-shaped clip 110 inserted between adjacent asphalt pavement blocks 100 is less than the distance between adjacent asphalt pavement blocks 100.

[0032] In this embodiment, the positioning hole is a countersunk hole, and the sleeve includes a first tube and a second tube. The first tube and the second tube are coaxial, and the connecting nut 400 is pressed on the second tube.

[0033] In this embodiment, the connecting nut 400 is provided with post-cast self-leveling cement.

[0034] Structural Description: During installation, install asphalt pavement blocks 100 sequentially. Then, hoist the second asphalt pavement block 100, ensuring the positioning hole of the lower clamp 102 of the second block aligns with the connecting bolt 200. Next, insert the sleeve fitting 300. Pour self-leveling cement onto the outside of the sleeve fitting 300 for the first time. Then, install the connecting nut 400 and keep it locked. After locking, pour self-leveling cement a second time, this time inside the sleeve, until it is flush with the asphalt pavement block 100. Note that it is also possible to skip this flush pouring and add a little asphalt later to maintain a consistent appearance. After installation, insert the T-shaped clamp 110 and pour asphalt around the edges to ensure a tight seal and consistent connection.

[0035] The design facilitates later maintenance and road surface adjustments. The thickness of the portion of the T-shaped clip 110 inserted between adjacent asphalt pavement blocks 100 is less than the distance between them, allowing the asphalt pavement blocks 100 to deform and elongate in summer, providing sufficient space. For severely damaged asphalt pavement blocks 100, repair is unnecessary; they can be directly replaced with new ones. Replacement is achieved by simply breaking the self-leveling cement and disassembling using the nuts. Of course, the actual disassembly process is more complex, and the connection between two asphalt pavement blocks 100 can also be broken directly; this will not be elaborated upon here.

[0036] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A precast assembled asphalt pavement structure, characterized by: The system includes asphalt pavement blocks (100), connecting bolts (200), sleeve fittings (300), and connecting nuts (400). The two ends of the asphalt pavement blocks (100) are respectively provided with an upper clamp (101) and a lower clamp (102). The upper clamp (101) is provided with multiple connecting bolts (200), and the lower clamp (102) is provided with multiple positioning holes. The positioning holes correspond one-to-one with the connecting bolts (200). The sleeve fittings (300) are installed in the positioning holes. The connecting nuts (400) are connected to the connecting bolts (200). Adjacent asphalt pavement blocks (100) are connected by sleeve fittings (300) fitted onto the connecting bolts (200).

2. The prefabricated assembled asphalt pavement structure according to claim 1, characterized in that: A T-shaped fastener (110) is provided between adjacent asphalt pavement blocks (100). The T-shaped fastener (110) includes a cement substrate and an asphalt panel, with the asphalt panel attached to the cement substrate.

3. The precast asphalt pavement structure according to claim 2, characterized in that: The asphalt pavement block (100) is provided with an installation platform (103) at both ends. The middle of the T-shaped clip (110) is inserted between adjacent asphalt pavement blocks (100), and the two ends of the T-shaped clip (110) are pressed on the installation platform (103).

4. The precast asphalt pavement structure of claim 2, wherein: The thickness of the portion of the T-shaped clip (110) inserted between adjacent asphalt pavement blocks (100) is less than the distance between adjacent asphalt pavement blocks (100).

5. The precast asphalt pavement structure of claim 1, wherein: The positioning hole is a countersunk hole, and the sleeve includes a first tube and a second tube. The first tube and the second tube are coaxial, and the connecting nut (400) is pressed on the second tube.

6. The precast asphalt pavement structure of claim 1, wherein: The connecting nut (400) is provided with post-cast self-leveling cement.