CN108867234B

CN108867234B - Durable asphalt pavement structure

Info

Publication number: CN108867234B
Application number: CN201810808513.3A
Authority: CN
Inventors: 张苛; 于干; 李文龙
Original assignee: Fuyang Normal University
Current assignee: Fuyang Normal University
Priority date: 2018-07-13
Filing date: 2018-07-13
Publication date: 2021-03-12
Anticipated expiration: 2038-07-13
Also published as: CN108867234A

Abstract

The invention discloses a durable asphalt pavement structure, which comprises a base layer, a mixing layer, a cement concrete layer and an asphalt layer, wherein the base layer is laid on the ground, a drainage pipeline is horizontally arranged in the base layer, the mixing layer is laid on the upper surface of the base layer and is formed by stones and gravels, gravels are laid between the stones, the laying thickness of the gravels is half of the height of the stones, the cement concrete layer is laid on the upper surface of the mixing layer, more than two convex strips are arranged on the upper surface of the cement concrete layer, the same steps are arranged on two sides of each convex strip, the convex strips and the convex strips are crisscrossed and converged into a grid structure, and the asphalt layer is laid in a grid formed by the convex strips. The maintenance frequency and the maintenance cost are reduced, and the structure also has a drainage function.

Description

Durable asphalt pavement structure

Technical Field

The invention relates to the field of machine pavements, in particular to a durable asphalt pavement structure.

Background

Asphalt pavement means various types of pavement paved by asphalt materials, which is infiltrated into mineral materials, along with the rapid development of economy, vehicles running on the asphalt pavement are more and more, and particularly, when a large truck or an overloaded vehicle brakes emergently, because the asphalt pavement is semi-rigid, the emergency brake can cause the deviation of the asphalt pavement, so that a part of the asphalt is sunken, a part of the asphalt is raised, and the service life of the asphalt pavement is reduced.

Disclosure of Invention

The present invention has been made to solve the above problems occurring in the prior art, and an object of the present invention is to provide a durable asphalt pavement structure.

In order to achieve the purpose, the invention provides the following technical scheme: a durable asphalt pavement structure comprises a base layer, a mixed layer, a cement concrete layer and an asphalt layer, wherein the base layer is laid on the ground, and a drainage pipeline is arranged in the horizontal direction in the base layer, a mixing layer is laid on the upper surface of the base layer, the mixing layer is composed of stones and gravels, the stones are in a square structure, the gravels are paved among the stones, the paving thickness of the gravels is half of the height of the stones, a cement concrete layer is paved on the upper surface of the mixing layer, more than two convex strips are arranged on the upper surface of the cement concrete layer, the two sides of each convex strip are provided with the same steps, the cross section of the convex strip is of an inverted T-shaped structure, the convex strips and the convex strips are crisscrossed and converged into a grid structure, the asphalt layer is laid in the grid formed by the convex strips, and the upper surface of the asphalt layer is 1-3cm higher than the upper surface of the convex strips.

Preferably, be provided with drainage device on the protruding rectangular, and drainage device includes basin, waterproof cover and sewer pipe, the basin has been seted up on the protruding rectangular, and the basin upper end is provided with the waterproof cover, the central point department of putting of basin leads to sewer pipe, sewer pipe vertically passes and mixes the layer and be connected with drainage pipe.

Preferably, the water tank is of a cuboid structure, springs are arranged on the periphery of the bottom of the water tank, and the water tank is connected with the waterproof cover through the springs.

Preferably, the waterproof cover is of an arc-shaped structure, and the left side and the right side of the waterproof cover are attached to the inner wall of the water tank.

Preferably, a steel wire mesh woven by steel wires is arranged in the protruding strip.

Preferably, the criss-cross positions of the protruding strips are arc-shaped structures.

Preferably, the outer wall of the sewer pipeline is wrapped with a sponge cushion.

Compared with the prior art, the invention has the beneficial effects that:

(1) because the overloading conditions of trucks in China are more, the vehicle can form a bulge (push away a part of asphalt) on the asphalt pavement when being suddenly braked, and the asphalt layer is laid in the grid formed by the long raised strips, so that the bulge can be flattened by the vehicle passing next time in the grid formed by the long raised strips under the braking condition because the long raised strips block the bulge, and the service life of the asphalt pavement is prolonged.

(2) According to the invention, the criss-cross staggered positions of the long protruding strips are arc-shaped structures, so that stress concentration of the long protruding strips is prevented, deformation of the long protruding strips under the action force of vehicles and asphalt is avoided, and the stability of the asphalt pavement structure is improved.

(3) In the invention, steps are arranged on two sides of the long protruding strip, so that asphalt is lapped in the inner wall of the long protruding strip, the strength of the long protruding strip is increased, in addition, a steel wire mesh woven by steel wires is arranged in the long strip protrusion, the strength of the long protruding strip is also increased, and the long protruding strip is provided with a drainage device, so that accumulated water on an asphalt pavement can be drained timely, and the asphalt pavement structure is protected from being damaged.

(4) The drainage device comprises a water tank, a waterproof cover and a sewer pipe, wherein the water tank is connected with the waterproof cover through a spring, so that the waterproof cover is prevented from being rolled and deformed when a vehicle passes by, the service life of the waterproof cover is prolonged, and when sundries are on the waterproof cover and a running vehicle passes by the waterproof cover, the vehicle applies pressure to the waterproof cover, so that the sundries are popped out by the waterproof cover, and the sundries are prevented from flowing into the water tank.

Therefore, the asphalt pavement structure has a self-repairing function, so that the service life of the asphalt pavement is prolonged, the maintenance times and the maintenance cost are reduced, and the structure also has a drainage function.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a grid structure formed by raised strips;

FIG. 3 is a schematic view of a structure of a raised strip;

fig. 4 is a schematic cross-sectional view of a raised strip.

In the figure: 1. a base layer; 2. a mixed layer; 2a, stone blocks; 2b, gravel; 3. a cement concrete layer; 4. an asphalt layer; 5. a water discharge pipeline; 6. a raised strip; 7. a step; 8. a drainage device; 8a, a water tank; 8b, a waterproof cover; 8c, a sewer pipeline; 9. a spring; 10. steel wire mesh; 11. a spongy cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a durable asphalt pavement structure comprises a base layer 1, a mixing layer 2, a cement concrete layer 3 and an asphalt layer 4, wherein the base layer 1 is laid on the ground, a drainage pipeline 5 is horizontally arranged in the base layer 1, the mixing layer 2 is laid on the upper surface of the base layer 1, the mixing layer 2 is composed of stones 2a and gravels 2b, the stones 2a are of a square structure, the gravels 2b are laid between the stones 2a, the laying thickness of the gravels 2b is half of the height of the stones 2a, the cement concrete layer 3 is laid on the upper surface of the mixing layer 2, more than two convex strips 6 are arranged on the upper surface of the cement concrete layer 3, a steel wire mesh 10 woven by steel wires is arranged in each convex strip 6, the strength of each convex strip 6 is improved, the longitudinal and transverse staggered positions of the convex strips 6 are of arc-shaped structures, and stress concentration of the convex strips 6 is prevented, avoid protruding rectangular 6 to take place the deformation, protruding rectangular 6 both sides are opened and are all equipped with the same ladder 7, make pitch overlap joint in protruding rectangular 6, reinforcing bituminous paving's intensity, and the cross-section of protruding rectangular 6 is for falling "T" shape structure, vertically and horizontally staggered converges into the grid structure between protruding rectangular 6 and the protruding rectangular 6, pitch layer 4 is laid in the grid that protruding rectangular 6 constitutes, make pitch extrude outside the grid that protruding rectangular 6 constitutes when preventing vehicle emergency brake, next time vehicle extrudees protruding pitch to original position in the driving process, thereby realized the self-healing function of pitch, increased bituminous paving's life, and bituminous layer 4 upper surface is higher than protruding rectangular 6 upper surface 1-3cm, be provided with drainage device 8 on the protruding rectangular 6, can in time remove the rainwater on the bituminous paving, and the drainage device 8 comprises a water tank 8a, a waterproof cover 8b and a sewer pipe 8c, the water tank 8a is arranged on the convex strip 6, the waterproof cover 8b is arranged at the upper end of the water tank 8a to prevent sundries on the road surface from entering the sewer pipe 8c and prevent the sewer pipe 8c from being blocked, the waterproof cover 8b is of an arc structure to prevent tires of the vehicle from being scraped onto the waterproof cover 8b, the left side and the right side of the waterproof cover 8b are attached to the inner wall of the water tank 8a to prevent sundries from entering the water tank 8a, the water tank 8a is of a cuboid structure, springs 9 are arranged around the bottom of the water tank, the water tank 8a is connected with the waterproof cover 8b through the springs 9 to prevent the waterproof cover 8b from being rolled and deformed by the vehicle, and when the sundries are on the waterproof cover 8b and the running vehicle passes over the waterproof cover 8b, the vehicle, therefore, sundries are popped out by the waterproof cover 8b, sundries are prevented from flowing into the water tank 8a, the central position of the water tank 8a is communicated with the sewer pipe 8c, the outer wall of the sewer pipe 8c is wrapped by the sponge cushion 11, on one hand, the sewer pipe 8c is prevented from being broken by edges and corners of gravels 2b, on the other hand, the sewer pipe 8c is prevented from being frozen and cracked in winter, the sewer pipe 8c vertically penetrates through the mixing layer 2 to be connected with the drainage pipeline 5, accumulated water on the asphalt pavement flows to the drainage pipeline 5 from the sewer pipe 8c, and is drained by the drainage pipeline 5.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a durable type bituminous paving structure, includes basic unit (1), mixes layer (2), cement concrete layer (3) and asphalt layer (4), its characterized in that: the concrete foundation is characterized in that the foundation layer (1) is laid on the ground, a drainage pipeline (5) is horizontally discharged in the foundation layer (1), a mixed layer (2) is laid on the upper surface of the foundation layer (1), the mixed layer (2) is formed by stones (2a) and gravels (2b), the stones (2a) are of a square structure, the gravels (2b) are laid between the stones (2a), the paving thickness of the gravels (2b) is half of the height of the stones (2a), a cement concrete layer (3) is laid on the upper surface of the mixed layer (2), more than two protruding strips (6) are arranged on the upper surface of the cement concrete layer (3), the two sides of the protruding strips (6) are provided with the same steps (7), the cross sections of the protruding strips (6) are of inverted T-shaped structures, and the protruding strips (6) are vertically and horizontally staggered to form a grid structure, the asphalt layer (4) is laid in a grid formed by the protruding strips (6), the upper surface of the asphalt layer (4) is 1-3cm higher than the upper surface of the protruding strips (6), the protruding strips (6) are provided with the drainage device (8), the drainage device (8) comprises a water tank (8a), a waterproof cover (8b) and a sewer pipe (8c), the protruding strips (6) are provided with the water tank (8a), the upper end of the water tank (8a) is provided with the waterproof cover (8b), the central position of the water tank (8a) is communicated with the sewer pipe (8c), the sewer pipe (8c) vertically penetrates through the mixed layer (2) to be connected with the drainage pipe (5), the water tank (8a) is of a cuboid structure, springs (9) are arranged around the bottom of the water tank, the water tank (8a) is connected with the waterproof cover (8b) through the springs (9), the waterproof cover (8b) is of an arc-shaped structure, and the left side and the right side of the waterproof cover (8b) are attached to the inner wall of the water tank (8 a).

2. A durable asphalt pavement structure according to claim 1, wherein: and a steel wire mesh (10) woven by steel wires is arranged in the protruding strip (6).

3. A durable asphalt pavement structure according to claim 1, wherein: the criss-cross positions of the protruding strips (6) are arc-shaped structures.

4. A durable asphalt pavement structure according to claim 1, wherein: the outer wall of the sewer pipeline (8c) is wrapped with a sponge cushion (11).