Composite asphalt structure pavement structure

Abstract

The utility model discloses a composite asphalt structure pavement structure which comprises an interlayer assembly, the interlayer assembly comprises an interlayer pad and pad concave-convex surfaces, the pad concave-convex surfaces are distributed on the interlayer pad at equal intervals, the pad concave-convex surface of the upper layer of the interlayer pad is a concave surface and forms a groove, the pad concave-convex surface of the lower layer of the interlayer pad is a convex surface and forms a bulge, and the convex surface is a convex surface and forms a convex groove. The upper layer and the lower layer of the interlayer cushion are concave-convex staggered surfaces, the supporting assembly comprises a supporting cushion and avoiding grooves formed in the supporting cushion at equal intervals, the supporting assembly is matched with the cushion concave-convex surface of the lower layer of the interlayer cushion, the supporting cushion and the interlayer cushion are completely matched, and a complete asphalt interlayer cushion surface is formed. The supporting pad and the interlayer pad are arranged between the asphalt surface and the base layer to form an asphalt pavement. The utility model solves the problem that the service life of the asphalt structure pavement is shortened due to the fact that the asphalt structure pavement is relatively soft, poor in drainage and relatively low in compressive resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering, in particular to a composite asphalt pavement structure. Background Art

[0002] Asphalt pavement refers to a pavement structure that uses asphalt as a bonding material. It is composed of multiple layers of materials, mainly including the base layer, subbase layer, intermediate layer, surface layer, etc. Asphalt pavement has good characteristics of water resistance, frost resistance, anti-sinking, durability, etc., and is widely used in road projects such as highways, expressways, and airport runways;

[0003] However, the bearing capacity of most existing asphalt pavements is relatively low, and they react greatly to the axle loads of heavy-loaded vehicles, which can easily lead to road damage. Asphalt pavements are greatly affected by temperature changes and are prone to thermal expansion and contraction, leading to problems such as road cracking and deformation. Asphalt pavements have relatively poor water resistance and are easily soaked by rain, causing the road surface to soften or crack. If there is a problem in any of these factors, it will lead to a chain reaction, causing the above problems to appear gradually / simultaneously, accelerating the degree of damage to the asphalt pavement. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the problem that the asphalt structure pavement is relatively soft, has poor drainage and low pressure resistance, which leads to a reduced service life of the asphalt structure pavement, the utility model provides the following technical solutions:

[0006] A composite asphalt pavement structure includes a sandwich assembly, including a sandwich mat and a mat concave-convex surface, wherein the mat concave-convex surface is evenly spaced on the sandwich mat, the mat concave-convex surface of the upper layer of the sandwich mat is a concave surface to form a groove, and the mat concave-convex surface of the lower layer of the sandwich mat is a convex surface to form a protrusion, and the upper and lower layers of the sandwich mat both present a staggered concave-convex surface;

[0007] The support assembly includes a support pad and avoidance grooves opened at equal intervals on the support pad, which cooperate with the concave and convex surface of the lower layer of the interlayer pad. The support pad and the interlayer pad are completely matched to form a complete asphalt interlayer pad surface;

[0008] The support pad and the interlayer pad are arranged between the asphalt surface and the base layer to form an asphalt pavement.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] As a preferred solution of the composite asphalt pavement structure of the utility model, the concave-convex surface of the pad is composed of a first curved surface, a second curved surface, a third curved surface, a fourth curved surface and a fifth curved surface.

[0011] As a preferred solution of the composite asphalt structural pavement structure described in the utility model, the first curved surface and the second curved surface constitute the concave-convex surface of the pad located in the upper layer of the interlayer pad, and at the same time, the fourth curved surface and the fifth curved surface constitute the concave-convex surface of the pad located in the lower layer of the interlayer pad, and the middle layer of the concave-convex surface of the pad is bridged by the third curved surface.

[0012] As a preferred solution of the composite asphalt pavement structure of the utility model, the fifth curved surface is arched.

[0013] As a preferred solution of the composite asphalt pavement structure of the utility model, the size of the avoidance groove of the support pad is larger than the protrusion size of the lower layer of the concave-convex surface of the pad.

[0014] As a preferred solution of the composite asphalt pavement structure of the utility model, the support pad has a plurality of buffer holes, each of the buffer holes is interconnected, and the buffer holes extend from the top of the support pad to the bottom of the support pad.

[0015] The beneficial effects of the utility model are as follows: the concave-convex surface of the pad is composed of the first and second curved surfaces of the upper layer, and the lower layer is composed of the fourth and fifth curved surfaces, and the upper and lower layers are bridged by the third curved surface. When asphalt is poured into the concave-convex surface of the pad, the asphalt is subjected to pressure above, and the pressure is evenly dispersed by the first and second curved surfaces of the upper layer of the concave-convex surface of the pad. The third and fourth curved surfaces further evenly disperse the pressure to the side of the asphalt. The pressure at the bottom is shared by the arched structure of the fifth curved surface, which provides a certain buffering support effect;

[0016] In addition, each curved surface has a certain tension when the asphalt expands and contracts, which can prevent the asphalt from cracking and deformation. At the same time, the dense distribution of multiple concave and convex surfaces can enhance the overall strength of the asphalt pavement and play a certain role in preventing cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a stereogram of the whole embodiment.

[0019] Figure 2 It is a three-dimensional diagram of the sandwich assembly of this embodiment.

[0020] Figure 3 4 is a plan view of the sandwich assembly of this embodiment.

[0021] Figure 4 2 is a cross-sectional view of the interlayer pad and the support pad of this embodiment.

[0022] Figure 5 It is a cross-sectional structural diagram of the interlayer pad and the support pad of this embodiment.

[0023] Figure 6 It is an exploded view of the sandwich assembly, asphalt surface and base layer of this embodiment.

[0024] In the figure; sandwich assembly 100, sandwich mat 101, mat concave-convex surface 102, first curved surface 102-1, second curved surface 102-2, third curved surface 102-3, fourth curved surface 102-4, fifth curved surface 102-5, asphalt surface 103, base layer 104;

[0025] Support assembly 200, support pad 201, avoidance groove 201a, buffer hole 201b. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figures 1 to 6 , is an embodiment of the utility model, which provides a composite asphalt pavement structure, such as Figure 1 , Figure 6As shown, the sandwich assembly 100 and the support assembly 200 are stacked on each other to form a new whole, and when paving the asphalt pavement, the new whole composed of the asphalt surface 103, the sandwich assembly 100 and the support assembly 200 can be stacked and paved alternately between the asphalt surface 103 and the base layer 104;

[0031] like Figure 2-Figure 3 As shown, the sandwich assembly 100 includes a sandwich pad 101 and a pad concave-convex surface 102, and the pad concave-convex surface 102 is evenly spaced on the sandwich pad 101, wherein the pad concave-convex surface 102 on the upper layer of the sandwich pad 101 is a concave surface, forming a groove, and the pad concave-convex surface 102 on the lower layer of the sandwich pad 101 is a convex surface, forming a bulge, and the upper and lower layers of the sandwich pad 101 are both concave-convex surfaces. A support pad 201 and the sandwich pad 101 are arranged on the base layer 104, and the support pad 201 is located on the base layer to disperse the axial load and provide structural stability, and the sandwich pad 101 is located on the support pad 2 01, plays a filling and bonding role, on the sandwich mat 101, the mat concave-convex surface 102 is arranged at equal intervals, wherein the mat concave-convex surface 102 on the upper layer of the sandwich mat 101 is a concave surface, forming a groove, and the mat concave-convex surface 102 on the lower layer of the sandwich mat 101 is a convex surface, forming a bulge. This staggered concave-convex surface helps to improve the skid resistance and water immersion resistance of the road surface. Finally, the asphalt surface 103 is laid on the sandwich mat 101 to form the top layer of the asphalt road surface. The asphalt surface 103 achieves the overall stability and durability of the road surface by fully matching with the sandwich mat 101.

[0032] like Figure 1 As shown, the support assembly 200 includes a support pad 201, and avoidance grooves 201a provided at equal intervals on the support pad 201, which cooperate with the concave-convex surface 102 of the lower layer of the interlayer pad 101, and the support pad 201 and the interlayer pad 101 are completely matched to form a complete asphalt interlayer pad surface;

[0033] like Figure 4-Figure 5As shown, the concave-convex surface 102 of the pad is composed of the first curved surface 102-1 and the second curved surface 102-2 of the upper layer, and the lower layer of the concave-convex surface 102 is composed of the fourth curved surface 102-4 and the fifth curved surface 102-5. The upper layer and the lower layer are bridged by the third curved surface 102-3. When asphalt is poured into the concave-convex surface 102, the asphalt is subjected to pressure, and the pressure will be evenly shared laterally by the first curved surface 102-1 and the second curved surface 102-2 of the upper layer of the concave-convex surface 102, wherein the third curved surface 102-3 is connected to the upper layer and the lower layer. The surface 102-3 and the fourth curved surface 102-4 further evenly share the pressure to the side of the asphalt, and the pressure at the bottom is shared by the arched structure of the fifth curved surface 102-5, which plays a certain buffering and supporting role when the asphalt is under pressure. When the asphalt expands and contracts with heat, each curved surface also has a certain tensile scale to share the pressure to the side of the asphalt to prevent the asphalt from cracking and deformation. At the same time, multiple pad concave and convex surfaces 102 are densely distributed, which can enhance the overall strength of the asphalt pavement and play a certain anti-cracking effect.

[0034] like Figure 5 As shown, the support pad 201 has a porous structure with buffer holes 201b. In addition to the buffering effect of the support pad 201 itself, the buffer holes 201b can further achieve the effect of buffering the pressure on the asphalt pavement through deformation. The buffer holes 201b are also conducive to the drainage of asphalt, preventing the asphalt from being soaked for too long and causing cracks.

[0035] Example 2

[0036] Reference Figures 1 to 6 , is an embodiment of the utility model, which provides a composite asphalt pavement structure. Different from the embodiment 1, the interlayer pad 101 can be used alone as an interlayer pad between the asphalt surface 103 and the base layer 104;

[0037] Specifically, Figure 1 , Figure 2 , Figure 6 As shown, the concave-convex surface 102 of the upper layer of the sandwich mat 101 is used for laying asphalt, and the base layer 104 is laid on the lower layer. The asphalt is compacted and wraps the concave-convex staggered surface of the upper layer of the sandwich mat 101, and the base layer 104 is compacted and wraps the concave-convex staggered surface of the lower layer of the sandwich mat 101. Since the sandwich mat 101 is sandwiched between the asphalt and the base layer 104, the first curved surface 102-1 and the second curved surface 102-2 of the upper layer of the concave-convex surface 102 of the sandwich mat 101 are evenly shared laterally, wherein the third curved surface 102-3 and the fourth curved surface 102-4 further evenly share the asphalt laterally, and the pressure at the bottom is shared by the arched structure of the fifth curved surface 102-5, and it plays a certain buffering and supporting role when the asphalt is under pressure, and when the asphalt expands and contracts due to heat and cold, each curved surface has a certain tension scale to prevent the asphalt from cracking and deformation. Compared with Example 1, it is only necessary to lay a few more layers of sandwich mats 101 on the asphalt layer to achieve good prevention of asphalt cracking, dents and other problems.

[0038] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0039] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0040] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A composite asphalt pavement structure, characterized by: include, The sandwich assembly (100) comprises a sandwich pad (101) and a pad concave-convex surface (102), wherein the pad concave-convex surface (102) is distributed on the sandwich pad (101) at equal intervals, the pad concave-convex surface (102) of the upper layer of the sandwich pad (101) is a concave surface, forming a groove, and the pad concave-convex surface (102) of the lower layer of the sandwich pad (101) is a convex surface, forming a protrusion, and the upper and lower layers of the sandwich pad (101) both present a concave-convex alternating surface; The support assembly (200) comprises a support pad (201) and avoidance grooves (201a) provided at equal intervals on the support pad (201), which cooperate with the concave-convex surface (102) of the lower layer of the sandwich pad (101); the support pad (201) and the sandwich pad (101) are completely matched to form a complete asphalt sandwich pad surface; The support pad (201) and the interlayer pad (101) are arranged between the asphalt surface (103) and the base layer (104) to form an asphalt pavement.

2. The composite asphalt pavement structure according to claim 1, characterized in that: The pad concave-convex surface (102) consists of a first curved surface (102-1), a second curved surface (102-2), a third curved surface (102-3), a fourth curved surface (102-4) and a fifth curved surface (102-5).

3. The composite asphalt pavement structure according to claim 2, characterized in that: The first curved surface (102-1) and the second curved surface (102-2) constitute a pad concave-convex surface (102) located at the upper layer of the interlayer pad (101), and at the same time, the fourth curved surface (102-4) and the fifth curved surface (102-5) constitute a pad concave-convex surface (102) located at the lower layer of the interlayer pad (101), and the middle layer of the pad concave-convex surface (102) is bridged by the third curved surface (102-3).

4. The composite asphalt pavement structure according to any one of claims 2 and 3, characterized in that: The fifth curved surface (102-5) is arched.

5. The composite asphalt pavement structure according to claim 1, characterized in that: The size of the avoidance groove (201a) of the support pad (201) is larger than the size of the protrusion of the lower layer of the pad concave-convex surface (102).

6. The composite asphalt pavement structure according to any one of claims 1 and 5, characterized in that: The support pad (201) has a plurality of buffer holes (201b), each of the buffer holes (201b) is interconnected, and the buffer holes (201b) extend from the top of the support pad (201) to the bottom of the support pad (201).

Images