Water-durable asphalt road maintenance pavement structure
Patent Information
- Application Number
- CN202521930374.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-09-09
AI Technical Summary
然而，现有施工规范中的沥青耐水损技术多针对机动车道设计，其重型结构和高成本并不完全适用于绿道场景，因此，亟需一种轻量化、兼顾透水性与耐水损的绿道路面结构
[0014]本实用新型的有益效果是：该路面结构的地基层为岩石层，其表面铺设由细沙混合物构成的第一防水层，并与地基层紧密嵌合；在第一防水层与第二防水层之间铺设立体网状骨架层，使采用相同细沙沥青材料的第一防水层与第二防水层通过骨架层充分交融嵌合，从而实现高效防水；最后，在第二防水层上方铺设常规沥青外层，形成完整的耐水型经济沥青路面结构。
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Figure CN224884508U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road engineering technology, and in particular to a pavement structure for water-resistant asphalt road maintenance for greenways. Background Technology
[0002] Water-resistant asphalt pavement structures are a technical solution that uses optimized material combinations and structural design to resist moisture erosion and extend the service life of roads. While the paving structure of current urban greenway asphalt pavements (such as pedestrian walkways and running tracks) is simpler than that of motor vehicle lanes, they are often exposed to shaded or grassy environments, making them prone to problems such as water accumulation, difficulty in evaporation, and prolonged dampness. However, existing asphalt water-resistant technologies in construction specifications are mostly designed for motor vehicle lanes, and their heavy structures and high costs are not entirely suitable for greenway scenarios. Therefore, there is an urgent need for a lightweight greenway pavement structure that balances permeability and water resistance. Utility Model Content
[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0004] To address the aforementioned problems, this utility model provides the following technical solution: A water-resistant asphalt road maintenance pavement structure includes, from bottom to top, a base layer, a first waterproof layer, a skeleton layer, a second waterproof layer, and an outer layer. The first waterproof layer is laid on the base layer, and a skeleton layer is laid between the first and second waterproof layers. The skeleton layer is embedded with the first and second waterproof layers, and an outer layer is laid on the embedded second waterproof layer. At the same time, the skeleton layer is embedded with the outer layer. The first waterproof layer and the second waterproof layer are exactly the same.
[0005] As a preferred embodiment of the water-resistant asphalt road maintenance pavement structure of this utility model, the first waterproof layer and the second waterproof layer are composed of a mixture of asphalt and fine sand.
[0006] As a preferred embodiment of the water-resistant asphalt road maintenance pavement structure of this utility model, the ratio of asphalt to fine sand in the first and second waterproof layers is between 1:2 and 1:4.
[0007] As a preferred embodiment of the water-resistant asphalt road maintenance pavement structure of this utility model, the outer layer of asphalt is mixed with crushed stone.
[0008] As a preferred embodiment of the water-resistant asphalt road maintenance pavement structure of this utility model, the first waterproof layer is embedded with the base layer, which is a mixed layer of granite and limestone, wherein the ratio of granite to limestone is between 1:3 and 1:6.
[0009] As a preferred embodiment of the water-resistant asphalt road maintenance pavement structure of this utility model, the skeleton layer is constructed by multiple skeleton units in a cross-sectional and cross-sectional manner, so that the skeleton layer has multiple gaps, and the upper top surface of the skeleton layer is arc-shaped and protrudes outward.
[0010] As a preferred embodiment of the water-resistant asphalt road maintenance pavement structure of this utility model, the slope angle between the top surface and the bottom surface of the skeleton layer is between 2° and 4°.
[0011] As a preferred embodiment of the water-resistant asphalt road maintenance pavement structure of this utility model, wherein: the skeleton unit is provided with an upper notch and a lower notch respectively.
[0012] As a preferred embodiment of the water-resistant asphalt road maintenance pavement structure of this utility model, each of the upper and lower notches is located at the middle of the intersection of the intersecting skeleton units.
[0013] As a preferred embodiment of the water-resistant asphalt road maintenance pavement structure of this utility model, the upper notch is located at the top of the skeleton unit, and the lower notch is located at the bottom of the skeleton unit.
[0014] The beneficial effects of this utility model are as follows: the base layer of the road structure is a rock layer, and a first waterproof layer composed of a fine sand mixture is laid on its surface and tightly embedded with the base layer; a three-dimensional mesh skeleton layer is laid between the first waterproof layer and the second waterproof layer, so that the first waterproof layer and the second waterproof layer, which use the same fine sand asphalt material, are fully integrated and embedded through the skeleton layer, thereby achieving efficient waterproofing; finally, a conventional asphalt outer layer is laid on top of the second waterproof layer to form a complete water-resistant economic asphalt pavement structure. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a structural diagram of the entire embodiment.
[0016] Figure 2 This is a three-dimensional view of the skeleton layer in this embodiment.
[0017] Figure 3 This is an example. Figure 2 A partial schematic diagram.
[0018] Figure 4 This is an example. Figure 2 Side view.
[0019] Figure 5 This is an example. Figure 2 A top-down view.
[0020] Figure 6 This is an example. Figure 5 A sectional view.
[0021] In the diagram: base layer 100, first waterproof layer 200, skeleton layer 300, second waterproof layer 400, outer layer 500; Top surface 300a, bottom surface 300b, skeleton unit 301, upper notch 301a, lower notch 301b, gap 302, intersection end 303. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0025] Example 1
[0026] Reference Figure 1 , Figure 2This embodiment of the present invention provides a water-resistant asphalt road maintenance pavement structure, comprising, from bottom to top, a base layer 100, a first waterproof layer 200, a skeleton layer 300, a second waterproof layer 400, and an outer layer 500. The first waterproof layer 200 is laid on the base layer 100, and the skeleton layer 300 is laid between the first waterproof layer 200 and the second waterproof layer 400. The skeleton layer 300 is embedded with the first waterproof layer 200 and the second waterproof layer 400. The outer layer 500 is laid on the embedded second waterproof layer 400, and the skeleton layer 300 is embedded with the outer layer 500. Specifically, the bottom layer of the road structure is the base course 100, which is composed of a mixture of granite and limestone. The base course 100, paved with rock, can effectively disperse stress. The ratio of granite to limestone is between 1:3 and 1:6. Limestone is inexpensive but easily weathered, while granite is hard and not easily weathered. Mixing the two in a ratio of 1:3 to 1:6 can achieve both economic efficiency and extend service life. The first waterproof layer 200 and the second waterproof layer 400 are made of a mixture of asphalt and fine sand. By mixing asphalt and fine sand, the mixed asphalt has high viscosity and high waterproof (water-resistant) properties. The ratio of asphalt to fine sand in the first waterproof layer 200 and the second waterproof layer 400 is between 1:2 and 1:4, which can effectively reduce the amount of asphalt used and reduce costs. The outer layer is made of 500 asphalt and crushed stone, which provides both strong support and structural strength for normal asphalt pavement. The first waterproof layer 200 and the second waterproof layer 400 are completely identical, which helps reduce the process burden and facilitates the adhesion between the first waterproof layer 200 and the second waterproof layer 400. It also simplifies construction (only the same asphalt mixture needs to be prepared and laid in different stages). The skeleton layer 300 has a mesh structure, in which the skeleton layer 300 is constructed by multiple skeleton units 301 in a cross-sectional and cross-sectional manner, so that the skeleton layer 300 has multiple gaps 302, so that the waterproof layer 200 and the second waterproof layer 400 can be fitted together. At the same time, the top of the skeleton layer 300 is fitted with the outer layer 500 to further strengthen the fitting structure. The upper top surface 300a of the skeleton layer 300 is arc-shaped and protrudes outward to facilitate drainage to both sides of the road surface. The slope angle between the upper top surface 300a and the lower bottom surface 300b of the skeleton layer 300 is between 2° and 4°, which ensures drainage of the road surface while maintaining a small slope so that the road surface is relatively flat and convenient for pedestrians to walk and run.
[0027] Example 2
[0028] Reference Figures 1 to 6In this embodiment of the present invention, an upper notch 301a and a lower notch 301b are respectively provided on the skeleton unit 301. Each upper notch 301a and lower notch 301b is located in the middle of the intersection end 303 between the intersecting skeleton units 301. The upper notch 301a is located at the top of the skeleton unit 301, and the lower notch 301b is located at the bottom of the skeleton unit 301.
[0029] Specifically, the skeleton unit 301 is provided with an upper notch 301a and a lower notch 301b, so that the upper and lower parts of the skeleton layer 300 have multiple tooth-like structures to improve its fit with the first waterproof layer 200 and the second waterproof layer 400. Each upper notch 301a and lower notch 301b is located in the middle of the intersection end 303 between the intersecting skeleton units 301, which is beneficial to increase the upper and lower notches without affecting the overall structural stability of the skeleton layer 300. The skeleton layer 300 can be made of composite materials such as polyethylene, metal materials such as stainless steel, or clay. The upper notch 301a and lower notch 301b of the skeleton layer 300 help improve the overall structural integrity of the structure and can prevent the faults and deformations of the entire asphalt structure from affecting the foundation if there is slight subsidence.
[0030] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0031] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A water-resistant asphalt road maintenance pavement structure, characterized in that: The system comprises, from bottom to top, a base layer (100), a first waterproof layer (200), a skeleton layer (300), a second waterproof layer (400), and an outer layer (500). The first waterproof layer (200) is laid on the base layer (100). A skeleton layer (300) is laid between the first waterproof layer (200) and the second waterproof layer (400). The skeleton layer (300) is fitted with the first waterproof layer (200) and the second waterproof layer (400). An outer layer (500) is laid on the second waterproof layer (400), and the skeleton layer (300) is fitted with the outer layer (500). The first waterproof layer (200) and the second waterproof layer (400) are completely identical; The skeleton layer (300) is constructed by multiple skeleton units (301) in a cross-sectional and cross-sectional manner, so that the skeleton layer (300) has multiple gaps (302), and the upper top surface (300a) of the skeleton layer (300) is arc-shaped and protrudes outward.
2. The water-resistant asphalt road maintenance pavement structure as described in claim 1, characterized in that: The slope angle between the top surface (300a) and the bottom surface (300b) of the skeleton layer (300) is between 2° and 4°.
3. The water-resistant asphalt road maintenance pavement structure as described in claim 1, characterized in that: The skeleton unit (301) has an upper notch (301a) and a lower notch (301b).
4. The water-resistant asphalt road maintenance pavement structure as described in claim 3, characterized in that: Each of the upper notch (301a) and lower notch (301b) is located at the middle of the intersection (303) between the intersecting skeleton units (301).
5. The water-resistant asphalt road maintenance pavement structure as described in claim 4, characterized in that: The upper notch (301a) is located at the top of the skeleton unit (301), and the lower notch (301b) is located at the bottom of the skeleton unit (301).