Pavement structure

Abstract

The utility model provides a pavement structure. The pavement structure comprises a roadbed, and a cushion layer, a base layer, a permeable layer, an adhesive layer and a surface layer which are sequentially arranged above the roadbed from bottom to top, wherein the base layer comprises a plurality of filling frames and a filling material which is filled in each filling frame and covers all the filling frames; the filling frame is further fixedly connected with a plurality of inserting rods extending downwards into the cushion layer. The utility model solves the problem that in the prior art, the pavement structure can continue to be damaged more quickly in the process of waiting for pavement repair, and finally the maintenance cost is greatly increased.

Description

Technical Field

[0001] The utility model relates to the technical field of highway structures, in particular to a pavement structure. Background Art

[0002] Highways generally consist of a roadbed at the bottom, and a cushion layer, base layer, adhesive layer and surface layer laid on the roadbed in order. Among them, the structural layer below the base layer is mainly used for water isolation, drainage and antifreeze to improve the working conditions of the base layer and soil foundation. It has good water stability requirements. The cushion layer materials include natural gravel, coarse sand, slag, etc. The base layer is a layered structure paved in layers on the surface of the cushion layer with a single material according to certain technical measures. The quality of its materials and quality directly affects the quality and performance of the road surface. The base layer is the load-bearing layer of the entire road and plays a role in stabilizing the road surface. The base layer includes an inorganic binder stabilized base layer and a crushed and gravel base layer; the role of the adhesive layer is to make the layers and the surface layer and the structure bonded into a whole. The adhesive layer mainly plays a bonding role. The adhesive layer material usually uses emulsified asphalt or modified emulsified asphalt; the surface layer is our common asphalt layer, which is mainly composed of asphalt (modified asphalt, high-viscosity and high-elastic asphalt) and graded crushed stone. During the use of highways, the road surface structure is often damaged due to insufficient strength of the base layer, and needs to be repaired in time, otherwise it will cause larger-scale damage. Generally, there is a certain interval between the occurrence of road damage and repair. During this interval, the road surface will continue to be damaged at a faster rate, which will lead to a substantial increase in maintenance costs. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides a pavement structure, which solves the problem in the prior art that the pavement structure will continue to be damaged faster while waiting for the pavement to be repaired, ultimately causing a significant increase in maintenance costs.

[0004] According to an embodiment of the utility model, a pavement structure includes a roadbed, and a cushion layer, a base layer, a permeable layer, a bonding layer and a surface layer arranged on the roadbed in sequence from bottom to top; wherein the base layer includes a plurality of filling frames and a filling material filled in each filling frame and covering all the filling frames; the filling frame is also fixedly connected to a plurality of insertion rods extending downward into the cushion layer.

[0005] In the above embodiment, a filling frame is provided in the base layer. After the pavement structure is damaged, the filling frame can enhance the pavement strength at the damaged part, thereby reducing the degree of further damage and reducing the increase in maintenance costs. This solves the problem in the prior art that the pavement structure will continue to be damaged faster while waiting for the pavement to be repaired, ultimately causing a significant increase in maintenance costs.

[0006] Furthermore, a plurality of transverse plates and a plurality of longitudinal plates are arranged in the base layer, and two adjacent transverse plates and two adjacent longitudinal plates are combined to form a filling frame.

[0007] Furthermore, the transverse plate includes two arc-shaped ends, and the longitudinal plate includes two trapezoidal ends, and the two trapezoidal end surfaces are opposite to each other and can be combined to form two butt joints for accommodating the two arc-shaped ends respectively.

[0008] Furthermore, adjacent arc-shaped ends and trapezoidal ends are arranged apart from each other.

[0009] Furthermore, the transverse plate and the longitudinal plate are respectively fixedly connected with plug rods.

[0010] Furthermore, a plurality of communication holes are respectively provided on the transverse plate and the longitudinal plate.

[0011] Furthermore, a wavy connecting portion is provided between the roadbed and the cushion layer.

[0012] Furthermore, the permeable layer further includes a penetration portion penetrating downward into the base layer.

[0013] Further, the infiltration portion is located above the filling frame.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] By setting a filling frame in the base layer, the pavement strength at the damaged part can be enhanced, the degree of further damage can be reduced, and the increase in maintenance costs can be reduced. This solves the problem in the prior art that the pavement structure will continue to be damaged faster while waiting for the pavement to be repaired, ultimately causing a significant increase in maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged local structure at center A;

[0018] Figure 3 It is an enlarged schematic diagram of a filling frame of an embodiment of the utility model;

[0019] Figure 4 for Figure 3 A magnified schematic diagram of the local structure at B in the middle;

[0020] In the above drawings:

[0021] Roadbed 1, cushion layer 2, base layer 3, permeable layer 4, adhesive layer 5, surface layer 6, filling frame 7, filling material 8, plug rod 9, transverse plate 10, longitudinal plate 11, arc-shaped end 12, trapezoidal end 13, connecting hole 14, connecting part 15, infiltration part 16. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In an exemplary embodiment, Figure 1-3 As shown, this embodiment provides a pavement structure, which includes a roadbed 1, and a cushion layer 2, a base layer 3, a permeable layer 4, an adhesive layer 5 and a surface layer 6 arranged on the roadbed 1 from bottom to top; wherein the base layer 3 includes a plurality of filling frames 7 and a filling material 8 filled in each filling frame 7 and covering all the filling frames 7; the filling frame 7 is also fixedly connected to a plurality of insertion rods 9 extending downward into the cushion layer 2.

[0025] In the above embodiment, a filling frame 7 is provided in the base layer 3. After the pavement structure is damaged, the filling frame 7 can enhance the pavement strength at the damaged part, so that the degree of further damage is reduced, and the increase in maintenance costs can be reduced, which solves the problem in the prior art that the pavement structure will continue to be damaged faster while waiting for the pavement to be repaired, thereby significantly increasing the maintenance costs. At the same time, a permeable layer 4 is also provided, the main material of which is emulsified asphalt, which can further stabilize the base layer 3. Furthermore, the permeable layer 4 also includes an infiltration portion 16 that penetrates downward into the base layer 3 and is located above the filling frame 7, that is, part of the emulsified asphalt penetrates downward into the base layer 3, further increasing the strength of the pavement structure. Furthermore, the extension of the insertion rod 9 into the cushion layer 2 can also strengthen the connection strength between the foundation and the cushion layer 2, thereby improving the strength of the overall pavement structure.

[0026] like Figure 1-4As shown, in a more detailed exemplary scheme, a plurality of transverse plates 10 and a plurality of longitudinal plates 11 are arranged in the base layer 3, and two adjacent transverse plates 10 and two longitudinal plates 11 are combined to form a filling frame 7, and the transverse plates 10 and the longitudinal plates 11 are separated and independent of each other. When the pavement structure is damaged, the transverse plates 10 and the longitudinal plates 11 have less mutual influence, so that the transverse plates 10 or the longitudinal plates 11 outside the damaged position can be avoided from being implicated, and the transverse plates 10 and the longitudinal plates 11 at this position can play a role in strengthening the strength of the pavement structure at that location, avoiding a greater degree of spread of the damage to the involved area; more specifically, the transverse plate 10 includes two arc-shaped end portions 12, and the longitudinal plate 11 includes two trapezoidal end portions 13, and the two trapezoidal end faces are opposed to each other and can be combined to form two docking portions for accommodating the two arc-shaped end portions 12 respectively, and the adjacent arc-shaped end portions 12 and trapezoidal end portions 13 are separated from each other, and the transverse plates 10 and the longitudinal plates 11 are combined to form a filling frame 7. The filling frame 7 is formed, and the filling material 8 is similar to the basic material in the prior art, which is filled into the filling frame 7 and covered on the top of the filling frame 7 to form an overall base layer 3. The arrangement of the arc-shaped end portion 12 and the trapezoidal end portion 13 enables the transverse plate 10 and the longitudinal plate 11 to play an auxiliary docking role during installation. At the same time, a small gap is left between the transverse plate 10 and the longitudinal plate 11 for the filling material 8 to enter and fill it, so as to avoid the transverse plate 10 and the longitudinal plate 11 being directly connected to each other and causing a greater impact, thereby making each filling frame 7 relatively more independent; in more detail, the transverse plate 10 and the longitudinal plate 11 are respectively fixedly connected with the plug rod 9, that is, the plug rod 9 is also relatively independent; further, the transverse plate 10 and the longitudinal plate 11 are respectively provided with a plurality of connecting holes 14, and these connecting holes 14 can also be used for the filling material 8 to enter and fill, so that the filling materials 8 in each filling frame 7 can be connected to a certain extent.

[0027] like Figure 1 , 2 As shown, in a further exemplary embodiment, a wavy connecting portion 15 is provided between the roadbed 1 and the cushion layer 2, so that the contact interface between the cushion layer 2 and the roadbed 1 can be increased, and the bonding strength between the two can be correspondingly enhanced, so that the overall pavement structure is stronger.

[0028] Finally, 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 purpose 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 pavement structure, characterized in that: It includes a roadbed, and a cushion layer, a base layer, a permeable layer, an adhesive layer and a surface layer arranged on the roadbed in sequence from bottom to top; wherein the base layer includes a plurality of filling frames and a filling material filled in each of the filling frames and covering all the filling frames; the filling frames are also fixedly connected to a plurality of plug rods extending downward into the cushion layer.

2. The pavement structure according to claim 1, characterized in that: A plurality of transverse plates and a plurality of longitudinal plates are arranged in the base layer, and two adjacent transverse plates and two adjacent longitudinal plates are combined to form a filling frame.

3. The pavement structure according to claim 2, characterized in that: The transverse plate includes two arc-shaped ends, and the longitudinal plate includes two trapezoidal ends. The two trapezoidal end surfaces are opposite to each other and can be combined to form two butt joints for accommodating the two arc-shaped ends respectively.

4. The pavement structure according to claim 3, characterized in that: The adjacent arc-shaped ends and the adjacent trapezoidal ends are arranged apart from each other.

5. The pavement structure according to claim 2, characterized in that: The transverse plate and the longitudinal plate are respectively fixedly connected with the insertion rods.

6. The pavement structure according to claim 2, characterized in that: The transverse plate and the longitudinal plate are also respectively provided with a plurality of communicating holes.

7. The pavement structure according to claim 1, characterized in that: A connecting portion in the shape of a wave is arranged between the roadbed and the cushion layer.

8. The pavement structure according to claim 1, characterized in that: The permeable layer further includes a penetration portion penetrating downward into the base layer.

9. The pavement structure according to claim 8, characterized in that: The infiltration portion is located above the filling frame.

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