A recycled asphalt mixture road structure

Abstract

The utility model relates to road structure technical field especially, more particularly to a kind of recycled asphalt mixture road structure.Its technical scheme includes:the road surface is laid on the roadbed, the road shoulder is equipped at the both sides of the road surface, the water guide blind pipe is opened in the roadbed, the water collection veranda is equipped at the both sides of the roadbed, the through-hole is opened in the water collection veranda, the roadbed is communicated with water collection veranda by water guide blind pipe and through-hole, the water guide blind pipe is used to collect the rainwater that seeps from road surface and roadbed, and water guide blind pipe guides rainwater into water collection veranda inside.This utility model is accurately docked by ∧-shaped water guide blind pipe and water collection veranda through-hole, uses gravity gradient to quickly guide and drain roadbed seepage, and is matched with sawtooth surface mechanical lock structure reinforcement layer interconnection, blocks rainwater penetration path, realizes the technical effect of efficient drainage and structure stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to road structure technical field, concretely relates to a regenerated asphalt mixture road structure. BACKGROUND

[0002] In the field of road engineering, the traditional asphalt pavement structure has long been faced with the technical problems of low drainage efficiency and poor structural stability. The existing road drainage system mostly relies on surface drainage ditches, which is difficult to effectively deal with the problem of roadbed immersion caused by rainwater penetration, resulting in the decline of roadbed strength, the settlement and cracking of pavement. Although some roads are provided with water guide blind pipes, due to unreasonable layout and poor connection with drainage channels, they cannot realize the rapid collection and discharge of rainwater, and water accumulation is prone to form a hidden trouble in the roadbed.

[0003] In addition, the connection mode between the pavement, the road shoulder and the roadbed usually adopts plane bonding or simple layering. Under the combined action of vehicle dynamic load, temperature stress and rainwater erosion, the interlayer is prone to slip and separation, resulting in the damage of the overall integrity of the pavement structure and accelerating the development of road diseases. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a regenerated asphalt mixture road structure, which solves the problems proposed in the background art.

[0005] The technical problems solved by the utility model are as follows: A regenerated asphalt mixture road structure, comprising a roadbed, a pavement laid on the roadbed, and road shoulders provided on both sides of the pavement. A water guide blind pipe is arranged in the roadbed, and a water collecting corridor is provided on both sides of the roadbed. The water collecting corridor is provided with through holes, and the roadbed is communicated with the water collecting corridor through the water guide blind pipe and the through holes. The water guide blind pipe is used for collecting the rainwater seeping from the pavement and the roadbed, and the water guide blind pipe guides the rainwater into the water collecting corridor.

[0006] On the basis of the above technical scheme, the utility model can be further improved as follows.

[0007] Further, the water guide blind pipe is in the shape of ∧, and the inclination angle of the water guide blind pipe is greater than 1°.

[0008] The beneficial effects of the above further scheme are as follows: The ∧-shaped structure increases the contact area between the water guide blind pipe and the accumulated water in the roadbed, and can more efficiently collect the rainwater seeping from the pavement and the roadbed. The inclination angle greater than 1° forms a stable slope difference, which utilizes the principle of gravity to drive the directional flow of water flow, so that the rainwater can quickly and smoothly flow along the blind pipe to the water collecting corridor, avoiding the retention of accumulated water in the blind pipe, improving the drainage efficiency, reducing the soaking time of rainwater on the roadbed, and effectively protecting the stability of the roadbed structure.

[0009] Further, the two sides of the road surface are provided with extension surfaces, the road shoulder is provided with a splicing surface, the lower surfaces of the extension surfaces, the lower surface of the road shoulder, the upper surface of the splicing surface and the upper surface of the roadbed are all provided with sawtooth surfaces, and the road surface, the road shoulder and the roadbed are connected through the sawtooth surfaces.

[0010] The beneficial effects of the further scheme are: The concave-convex structure of the sawtooth surface forms a mechanical locking effect, significantly enhances the connection strength between the road surface, the road shoulder and the roadbed, and prevents relative displacement of the structure layers under the action of vehicle load, temperature change and other factors; at the same time, the irregular sawtooth contact surface blocks the straight-line penetration path of rainwater between the layers, forces the water flow to flow along the concave-convex gap, effectively reduces the risk of rainwater penetrating into the roadbed, and improves the waterproof performance and durability of the road structure.

[0011] Further, the road shoulder is provided with a water groove.

[0012] The beneficial effects of the further scheme are: The water groove forms a clear water guide channel on the road shoulder, can quickly collect rainwater on the edge of the road surface and the surface of the road shoulder, and avoids accumulated water on the surface of the road shoulder. The accumulated water can be guided through the water groove, reduces the time of rainwater staying on the road surface and the road shoulder, improves the driving safety and prevents vehicle skidding, and reduces the erosion of rainwater to the side slope of the road shoulder, protects the integrity and stability of the road shoulder.

[0013] Further, the water guide blind pipes are uniformly distributed in the roadbed, and the positions of the water guide blind pipes correspond to the positions of the through holes of the water collecting underground gallery.

[0014] The beneficial effects of the further scheme are: The uniform distribution of the water guide blind pipes can ensure that the seepage water in each area of the roadbed can be effectively collected, and avoids the occurrence of a drainage blind area; the precise correspondence between the positions of the water guide blind pipes and the through holes of the water collecting underground gallery enables the rainwater in the water guide blind pipes to flow into the water collecting underground gallery without obstruction and efficiently, reduces the resistance and loss in the water flow transmission process, guarantees the smoothness and reliability of the entire drainage system, realizes seamless connection from collection to discharge of rainwater, and improves the road drainage efficiency and the waterproof ability of the roadbed.

[0015] The utility model provides a kind of recycled asphalt mixture road structure. It has the following beneficial effects: The water guide blind pipe adopts ∧ layout and the inclination angle is greater than 1 °, and the structure forms natural drainage slope using gravity principle, can quickly collect rainwater that seeps through road surface and roadbed, and drives water flow directional flow through slope difference. The uniformly distributed blind pipe can cover roadbed drainage area comprehensively, avoid local waterlogging, and the ∧ design increases water collecting area, improves drainage efficiency, and effectively reduces the soaking damage of rainwater to roadbed.

[0016] The water collecting corridor is precisely connected with the water guide blind pipe through the through hole, to form a collecting and conveying integrated drainage system. The water guide blind pipe directs the rainwater into the water collecting corridor, and the closed structure of the water collecting corridor is used to collect the water flow, so that the rainwater is prevented from penetrating in the roadbed again. The water collecting corridor penetrates the two sides of the roadbed, so that the rainwater can be quickly drained to the external drainage pipe network of the road, the drainage path is shortened, and the risk of water erosion of the roadbed is reduced.

[0017] The road surface, the road shoulder and the roadbed are connected through the sawtooth surface, the mechanical locking effect of the concave-convex structure is used to enhance the friction and the bonding strength between the layers, and the structural layer is prevented from slipping due to uneven stress. Meanwhile, the irregular contact surface of the sawtooth surface can block the straight penetration path of the rainwater, so that the water flow is forced to flow along the concave-convex gap, the water penetration probability between the layers is reduced, the waterproof stability of the road structure is improved, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view appearance schematic diagram of the utility model; Figure 2 It is a front view explosion structure schematic diagram of the utility model; Figure 3 It is a Figure 2 It is an enlarged schematic diagram of A in the utility model; Figure 4 It is a bottom view explosion structure schematic diagram of the utility model; Figure 5 It is a roadbed half-section structure schematic diagram of the utility model.

[0019] Mark 1, road surface; 101, extension surface; 2, road shoulder; 201, water tank; 202, splicing surface; 3, water collecting corridor; 301, through hole; 4, roadbed; 401, sawtooth surface; 402, water guide blind pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1 to 5 The embodiments provided by the utility model are as follows: Embodiment one A road structure using recycled asphalt mixture includes a roadbed 4, which is made of 100% recycled aggregate and cement-stabilized crushed stone. A road surface 1 is laid on the roadbed 4. The road surface 1 uses a high-content recycled asphalt mixture with a RAP ≥ 70%. Shoulders 2 are provided on both sides of the road surface 1. The shoulders 2 use a large-pore recycled asphalt mixture with a porosity of 18%-22%. A water channel 201 is provided on the shoulders 2. The water channel 201 forms a clear water guiding channel on the shoulders 2, which can quickly collect rainwater from the edge of the road surface 1 and the surface of the shoulders 2, and prevent water accumulation on the surface of the shoulders 2. Water can be guided through the water channel 201, reducing the time rainwater stays on the road surface 1 and shoulder 2. This improves driving safety, prevents vehicles from skidding, and reduces the erosion of the shoulder 2 slope by rainwater, protecting the integrity and stability of the shoulder 2. A blind drainage pipe 402 is installed within the roadbed 4. The blind drainage pipe 402 is ∧-shaped with an inclination angle greater than 1°. The ∧-shaped structure increases the contact area between the blind drainage pipe 402 and the water in the roadbed 4, enabling more efficient collection of rainwater seeping from the road surface 1 and roadbed 4. The inclination angle greater than 1° creates a stable slope difference, using gravity to drive the water flow in a directional manner, allowing rainwater to flow quickly and smoothly along the blind pipe to the collection tunnel 3, preventing water from stagnating in the blind pipe, improving drainage efficiency, reducing the soaking time of rainwater on the roadbed 4, and effectively protecting the structural stability of the roadbed 4. Collection tunnels 3 are located on both sides of the roadbed 4. A through hole 301 is provided on the roadbed 4, and the blind water pipes 402 are evenly distributed within the roadbed 4. The position of the blind water pipes 402 corresponds to the position of the through hole 301 of the water collection tunnel 3. The even distribution of the blind water pipes 402 can ensure that the seepage water in each area of ​​the roadbed 4 can be effectively collected, avoiding drainage blind spots. The precise correspondence with the position of the through hole 301 of the water collection tunnel 3 allows the rainwater in the blind water pipes 402 to flow into the water collection tunnel 3 without obstruction and efficiently, reducing the resistance and loss in the water flow transmission process, ensuring the smoothness and reliability of the entire drainage system, realizing the seamless connection of rainwater from collection to discharge, improving the road drainage efficiency and the waterproofing capability of the roadbed 4. The roadbed 4 is connected to the water collection tunnel 3 through the blind water pipes 402 and the through hole 301. The blind water pipes 402 are used to collect rainwater seeping from the road surface 1 and the roadbed 4, and the blind water pipes 402 guide the rainwater into the water collection tunnel 3.

[0022] Example 2 To further enhance the interlayer bonding strength of the road structure and improve waterproofing performance, for example, such as Figures 1 to 5As shown, this utility model also includes: extension surfaces 101 on both sides of the road surface 1, splicing surfaces 202 on the shoulder 2, and serrated surfaces 401 on the lower surface of the extension surface 101, the lower surface of the shoulder 2, the upper surface of the splicing surface 202, and the upper surface of the roadbed 4. The road surface 1, shoulder 2, and roadbed 4 are connected by the serrated surfaces 401. The concave and convex structure of the serrated surfaces 401 forms a mechanical locking effect, which significantly enhances the connection strength between the road surface 1, shoulder 2, and roadbed 4, and prevents the relative displacement of each structural layer under the action of vehicle load, temperature change, and other factors. At the same time, the irregular serrated contact surface blocks the straight infiltration path of rainwater between layers, forcing the water flow to disperse along the concave and convex gaps, effectively reducing the risk of rainwater infiltrating into the interior of the roadbed 4, and improving the waterproof performance and durability of the road structure.

[0023] Working principle: When rainwater falls on road surface 1, the extended surfaces on both sides of road surface 1 guide the rainwater to the shoulder area 2. Water channels 201 are formed on the surface of shoulder 2 to quickly collect rainwater and prevent it from accumulating on the surface of shoulder 2.

[0024] Some rainwater will seep through the surfaces of road surface 1 and roadbed 4 into the interior of roadbed 4. Drainage pipes 402, distributed in a ∧-shape within roadbed 4, serve a collection function. The ∧-shaped structure increases the water collection area, and the slope angle greater than 1° creates a gradient difference, using gravity to drive the water flow. Their uniform distribution design ensures comprehensive capture of infiltrated rainwater. The inclined slope of the drainage pipes 402 promotes the flow of rainwater downhill along the pipes, providing power for subsequent drainage.

[0025] The end of the blind drain pipe 402 corresponds precisely to the through hole 301 on the underground water collection corridor 3. Rainwater that seeps into the blind drain pipe 402 flows directly into the underground water collection corridor 3 through the through hole 301. The underground water collection corridor 3 is equivalent to an underground drainage channel. Its closed structure can collect rainwater in a concentrated manner and avoid secondary seepage. Its design that runs through both sides of the roadbed 4 can quickly transport rainwater to the drainage system outside the road.

[0026] The road surface 1, shoulder 2 and subgrade 4 are connected by a sawtooth surface 401. The sawtooth contact surface increases friction and interlocking, forming a mechanical locking effect. This design not only enhances the connection strength of each structural layer, but also reduces the infiltration path of rainwater between layers. The concave-convex structure blocks the straight water infiltration channel, thereby improving the waterproofness and stability of the entire road structure and preventing subgrade 4 from settling or structural damage due to rainwater infiltration.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A road structure made from recycled asphalt mixture, comprising a roadbed (4), on which a road surface (1) is laid, and on both sides of the road surface (1) are shoulders (2), characterized in that: A water-guiding blind pipe (402) is provided in the roadbed (4), and a water-collecting underground corridor (3) is provided on both sides of the roadbed (4). A through hole (301) is provided on the water-collecting underground corridor (3). The roadbed (4) is connected to the water-collecting underground corridor (3) through the water-guiding blind pipe (402) and the through hole (301). The water-guiding blind pipe (402) is used to collect rainwater seeping down from the road surface (1) and the roadbed (4), and the water-guiding blind pipe (402) guides the rainwater into the water-collecting underground corridor (3).

2. The road structure made from recycled asphalt mixture according to claim 1, characterized in that: The water-conducting blind pipe (402) is ∧-shaped, and the tilt angle of the water-conducting blind pipe (402) is greater than 1°.

3. The road structure made from recycled asphalt mixture according to claim 1, characterized in that: The road surface (1) has extension surfaces (101) on both sides, and the shoulder (2) has splicing surfaces (202). The lower surface of the extension surface (101), the lower surface of the shoulder (2), the upper surface of the splicing surface (202), and the upper surface of the roadbed (4) are all provided with serrated surfaces (401). The road surface (1), shoulder (2) and roadbed (4) are connected by serrated surfaces (401).

4. The road structure made from recycled asphalt mixture according to claim 1, characterized in that: A water trough (201) is provided on the shoulder (2).

5. The road structure made from recycled asphalt mixture according to claim 1, characterized in that: The water-conducting blind pipes (402) are evenly distributed within the roadbed (4), and the positions of the water-conducting blind pipes (402) correspond to the positions of the through holes (301) of the water collection tunnel (3).

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