Asphalt pavement

Abstract

The utility model provides an asphalt pavement which comprises a foundation soil layer, a plurality of anchoring structures are arranged in the foundation soil layer, and the anchoring structures are used for anchoring the foundation soil layer; a plurality of anchoring structures are arranged on the base soil layer, a stress plate is arranged among the upper ends of the plurality of anchoring structures, the stress plate is located above the base soil layer, a second gravel layer is laid on the upper surface of the stress plate and the upper surfaces of the anchoring structures, a slurry seal layer is laid on the second gravel layer, and an asphalt layer is laid on the slurry seal layer. And meanwhile, additional pressure is applied to the residual non-uniform settlement part of the foundation soil layer by virtue of self rigidity, so that the foundation soil layer is leveled, and the influence of non-uniform subgrade settlement on an asphalt layer is reduced.

Description

Technical Field

[0001] The utility model relates to the field of road construction, in particular to an asphalt paved road surface. Background Art

[0002] The construction, maintenance and upkeep of road base, asphalt pavement, cement concrete pavement, curbstone and kerbstone, sidewalk (square), water collection well and rainwater branch pipe, urban road lighting and other projects. During the use of asphalt pavement, there is uneven roadbed settlement, which has a great impact on the asphalt layer, thus easily leading to cracking or collapse of the asphalt pavement. Utility Model Content

[0003] In order to solve the problem in the background technology that uneven roadbed settlement has a significant impact on the asphalt layer, the utility model proposes an asphalt paved road surface.

[0004] The technical solution of the utility model is: comprising a base soil layer,

[0005] A plurality of anchoring structures are arranged inside the base soil layer, and the anchoring structures are used to anchor the base soil layer;

[0006] A load-bearing plate is arranged between the upper ends of the plurality of anchoring structures. The load-bearing plate is located above the base soil layer. A second crushed stone layer is laid on the upper surface of the load-bearing plate and the upper surface of the anchoring structure. A slurry seal layer is laid on the second crushed stone layer. An asphalt layer is laid on the slurry seal layer.

[0007] Preferably, the anchoring structure includes a buried hole, each of which is provided with embedded parts, the embedded parts include anchor piles, and the anchor piles extend in the up and down directions, the lower part of the anchor piles is arranged inside the buried hole, the upper ends of the anchor piles are fixedly connected with support plates, the support plates are located outside the buried hole, and the lower surfaces of the support plates are in contact with the upper surface of the base soil layer, and the upper surfaces of the support plates are in contact with the lower surface of the load-bearing plates.

[0008] Preferably, the upper surfaces of the support plates are fixedly connected with positioning blocks, the upper surface of the force-bearing plate is provided with a plurality of positioning slots corresponding to the positioning blocks, and the positioning blocks are inserted into the positioning slots.

[0009] Preferably, there is a gap between the load-bearing plate and the base soil layer, and a first crushed stone layer is laid between the load-bearing plate and the base soil layer.

[0010] Preferably, the force-bearing plate is provided with drainage grooves which are evenly spaced in the left-right direction and extend in the front-back direction.

[0011] Preferably, the bottom of the drainage groove has an arc-shaped slope, and the front and rear ends of the bottom of the drainage groove are lower than the middle part of the bottom of the drainage groove.

[0012] The advantages of the utility model are as follows: when the roadbed settles, the load-bearing plate can support the remaining structure above by its own rigidity, thereby avoiding the cracking of the asphalt layer due to small-scale local settlement; when the settlement range is large, the load-bearing plate itself also settles, and at the same time exerts pressure on the roadbed to make it flat, reduce its uneven settlement, and thus reduce the cracking and collapse of the asphalt layer caused by the roadbed settlement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of the main structure of Example 1;

[0015] Figure 2 for Figure 1 Schematic diagram of the side cross-sectional structure in.

[0016] In the figure, 1 is the base soil layer, 2 is the anchor pile, 3 is the support plate, 4 is the positioning block, 5 is the first crushed stone layer, 6 is the load-bearing plate, 7 is the drainage ditch, 8 is the second crushed stone layer, 9 is the slurry seal layer, and 10 is the asphalt layer. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Embodiment 1: This embodiment aims to provide an asphalt paved road surface.

[0019] according to Figure 1 to Figure 2As shown, the construction workers first clean up the debris and vegetation on the construction road surface, then dig downwards, and then use the road surface that has been excavated and leveled downwards as the base soil layer (1). Then, the construction workers set up a plurality of embedding holes on the base soil layer (1) from the middle to the outside, and then bury an embedded part in each embedding hole. The embedded part includes an anchor pile (2) and a support plate (3), and the anchor pile (2) extends in the up and down direction. The anchor pile (2) is arranged inside the embedding hole, and the support plate (3) is arranged outside the embedding hole, and the lower surface of the support plate (3) contacts the upper surface of the base soil layer (1). Then, the workers lay the first crushed stone layer (5) on the base soil layer (1). The first crushed stone layer (5) is composed of crushed pebbles and gravel, and a layer of civil grid should be sandwiched therein. The first crushed stone layer (5) fills the gaps between the support plates (3). After the first crushed stone layer (5) is laid and compacted, it should be flush with the support plate (3).

[0020] The upper surface of the support plate (3) is fixedly connected with a positioning block (4). The construction personnel lift the load-bearing plate (6) by a crane, and then align the positioning slots on the load-bearing plate (6) with the positioning blocks (4) one by one. Then, the load-bearing plate (6) is lowered, so that the inside of the positioning slots is plugged into the outer surface of the positioning block (4), and the lower surface of the load-bearing plate (6) is in contact with the upper surface of the support plate (3), thereby completing the installation of the load-bearing plate (6). Then, the staff welds the various load-bearing plates (6) to connect the various load-bearing plates (6) into a whole. The load-bearing plate (6) is provided with drainage grooves (7) that are evenly spaced and extend in the left-right direction, and the bottoms of the drainage grooves (7) have an arc-shaped slope, and the left and right ends of the bottom of the drainage grooves (7) are lower than the middle of the bottom of the drainage grooves (7), and the two ends of the drainage grooves (7) pass through the roadbed and are connected to the drainage systems on both sides of the road. When rainwater penetrates downward and contacts the load-bearing plate (6), since the load-bearing plate (6) is provided with a plurality of drainage grooves (7), the rainwater enters the interior of the drainage grooves (7), and then flows to both sides along the slope of the bottom of the drainage grooves (7), thereby being discharged.

[0021] Then, the construction workers lay a second crushed stone layer (8) on the load-bearing plate (6). The second crushed stone layer (8) is composed of crushed pebbles and gravel, and then a layer of earthwork grid is sandwiched therein. Then, the second crushed stone layer (8) is compacted by a roller. After the second crushed stone layer (8) is compacted, a slurry seal layer (9) is laid thereon. The slurry seal layer (9) is composed of emulsified asphalt, coarse and fine aggregates, water, fillers and additives mixed according to the designed proportions. Then, an asphalt layer (10) is laid on the slurry seal layer (9).

[0022] Subgrade settlement is generally the settlement of the base soil layer (1). After paving is completed, the local base soil layer (1) in the asphalt pavement may settle. If the local settlement range of the soil base is small, the asphalt layer (10) of the ordinary asphalt pavement structure will only settle the structure below the settlement area due to the small settlement range, resulting in hollowing below the asphalt layer (10), making the asphalt layer (10) lack support, and finally causing a downward concave local collapse when the asphalt layer (10) bears the load of passing vehicles. Under this structure, due to the small settlement area, the remaining base soil layer (1) still has a large support for the load plate (6). Under the action of the load plate (6)'s own rigidity, the load plate (6) will continue to support the remaining structure above, so that there is still remaining structure support below the asphalt layer (10), thereby preventing the asphalt layer (10) from collapsing due to the influence of the local settlement of the base soil layer (1). If the local settlement range is large, but the settlement is uniform, the asphalt layer (10) will not collapse due to the influence of the local settlement of the base soil layer (1). When the settlement is uneven, the asphalt layer (10) in the ordinary asphalt pavement structure also settles accordingly. The entire structure settles, and only cracks at the connection with the non-settled area. The overall impact is also small. However, when the local settlement is uneven, the asphalt layer (10) in the ordinary asphalt pavement structure is unevenly stressed due to the uneven settlement of the base soil layer (1), resulting in multiple cracks. Under this structure, the load-bearing plate (6) also settles with the settlement of the base soil layer (1), but Since the load-bearing plate (6) applies pressure to the base soil layer (1), the pressure on the uneven parts of the base soil layer (1) will increase, so that the base soil layer (1) is leveled, thereby reducing the unevenness of its settlement. At the same time, the load-bearing plate (6) itself has rigidity, and when it settles, the structure laid on it can settle evenly, avoiding the asphalt layer (10) from cracking in multiple places due to uneven settlement, thereby reducing the cracking and collapse of the asphalt layer caused by uneven settlement of the base soil layer.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An asphalt pavement, characterized in that: Including the base soil layer (1), A plurality of anchoring structures are provided inside the base soil layer (1), and the anchoring structures are used to anchor the base soil layer (1); A load-bearing plate (6) is provided between the upper ends of the plurality of anchoring structures. The load-bearing plate (6) is located above the base soil layer (1). A second crushed stone layer (8) is laid on the upper surface of the load-bearing plate (6) and the upper surface of the anchoring structure. A slurry seal layer (9) is laid on the second crushed stone layer (8), and an asphalt layer (10) is laid on the slurry seal layer (9).

2. The asphalt pavement according to claim 1, characterized in that: The anchoring structure comprises an embedding hole, wherein each embedding hole is provided with an embedded part, wherein the embedded part comprises an anchoring pile (2), and the anchoring pile (2) extends in an up-down direction, the lower part of the anchoring pile (2) is arranged inside the embedding hole, and the upper end of the anchoring pile (2) is fixedly connected to a support plate (3), the support plate (3) is located outside the embedding hole, and the lower surface of the support plate (3) is in contact with the upper surface of the base soil layer (1), and the upper surface of the support plate (3) is in contact with the lower surface of the load-bearing plate (6).

3. The asphalt pavement according to claim 2, characterized in that: The upper surfaces of the support plates (3) are fixedly connected to positioning blocks (4), and the upper surface of the force-bearing plates (6) is provided with a plurality of positioning slots corresponding to the positioning blocks (4) from top to bottom, and the positioning blocks (4) are inserted into the positioning slots.

4. The asphalt pavement according to claim 2, characterized in that: There is a gap between the load-bearing plate (6) and the base soil layer (1), and a first crushed stone layer (5) is laid between the load-bearing plate (6) and the base soil layer (1).

5. The asphalt pavement according to claim 1, characterized in that: The force-bearing plate (6) is provided with drainage grooves (7) which are evenly spaced in the left-right direction and extend in the front-back direction.

6. The asphalt pavement according to claim 5, characterized in that: The bottom of the drainage groove (7) has an arc-shaped slope, and the front and rear ends of the bottom of the drainage groove (7) are lower than the middle of the bottom of the drainage groove (7).

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