CN213538586U

CN213538586U - Asphalt pavement paving structure

Info

Publication number: CN213538586U
Application number: CN202022247519.3U
Authority: CN
Inventors: 毛国芳; 袁晓冬; 邹雪炎; 凌彬; 周志贤; 陆炜东
Original assignee: Jiangsu Changling Traffic Engineering Co ltd
Current assignee: Jiangsu Changling Traffic Engineering Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-25
Anticipated expiration: 2030-10-10

Abstract

The application relates to the field of bridge construction, in particular to an asphalt pavement paving structure, which comprises a base layer and an asphalt surface layer; the method is characterized in that: still be provided with the drainage blanket between basic unit and the pitch surface course, the inside horizontal ditch of having seted up of drainage blanket, horizontal ditch sets up along road width direction. The escape canal can arrange the inside rainwater in infiltration road surface to one side of road surface structure, makes the rainwater be difficult for in the inside accumulation of road surface structure to reduce the rainwater and to bridge road surface structure's corruption, guarantee bridge road surface structure's life-span.

Description

Asphalt pavement paving structure

Technical Field

The application relates to the field of bridge construction, in particular to an asphalt pavement paving structure.

Background

Under the general condition, in rainy weather, after the rainwater falls on the road surface, the rainwater can permeate into the interior of the road surface structure layer, and accumulated water can be formed in the interior of the road surface structure layer. The accumulated water can react with some substances of the structural layer, thereby influencing the structural layer of the pavement. And this effect is more severe for bridges.

Because the bridge has strict requirements on the overall strength of the bridge, the rainwater corrodes the road surface of the bridge for a long time, not only can influence the road surface, but also can influence the bridge per se to a certain extent. Therefore, the drainage performance of the bridge pavement is very important.

SUMMERY OF THE UTILITY MODEL

In order to guarantee the drainage performance on bridge road surface, reduce the corruption of rainwater to bridge road surface, this application provides a bituminous paving structure.

The application provides a bituminous paving structure adopts following technical scheme:

an asphalt pavement paving structure comprises a base layer and an asphalt surface layer; still be provided with the drainage blanket between basic unit and the pitch surface course, the inside horizontal ditch of having seted up of drainage blanket, horizontal ditch sets up along road width direction.

Through adopting above-mentioned technical scheme, the rainwater permeates to the drainage blanket from bituminous paving, and the escape canal that sets up in the drainage blanket can arrange the rainwater to one side of road surface structure, makes the rainwater be difficult for in the inside accumulation of road surface structure to reduce the rainwater and to bridge road surface structure's corruption, guarantee bridge road surface structure's life-span.

Preferably, two adjacent be provided with many between the horizontal ditch and indulge the ditch, many indulge the ditch along horizontal ditch length direction evenly distributed, indulge the both ends of ditch all with horizontal ditch intercommunication.

Through adopting above-mentioned technical scheme, indulge the ditch and can communicate each other horizontal ditch to in making rainwater concentrated flow to horizontal ditch, thereby promote drainage efficiency on drainage blanket.

Preferably, the longitudinal groove has a center in a longitudinal direction thereof located above the lateral groove, and both ends of the longitudinal groove are inclined downward.

Through adopting above-mentioned technical scheme, the rainwater gets into indulges the inside back of ditch, owing to indulge the ditch and have certain slope for the rainwater flows to the cross ditch in more easily, so that promote drainage effect.

Preferably, the cross section of each transverse groove and each longitudinal groove is trapezoidal, and the bottom edge of each trapezoid is located above the top edge.

Through adopting above-mentioned technical scheme, when the road surface bearing, the power transmission that the pitch surface course received is for the drainage blanket to when the power is used in the lateral wall of horizontal ditch and vertical ditch, pressure can the transmission downwards, makes the lateral wall of horizontal ditch and vertical ditch be difficult for producing because of the atress and collapses, guarantees the normal use of horizontal ditch and vertical ditch.

Preferably, the retainers are arranged in the transverse back part and the longitudinal grooves, the retainers in the transverse grooves are arranged along the length direction of the transverse grooves, and the retainers in the longitudinal grooves are arranged along the length direction of the longitudinal grooves.

Through adopting above-mentioned technical scheme, the holder can play the supporting role to the bituminous paving layer of horizontal ditch and vertical ditch top, guarantees the bearing capacity on road surface, and the bituminous paving of horizontal ditch and vertical ditch top is difficult for producing and sinks.

Preferably, the holder includes a bottom plate, a top plate disposed above the bottom plate, and a support plate disposed between the top plate and the bottom plate.

Through adopting above-mentioned technical scheme, the roof can push up the pitch surface course and hold, and backup pad and bottom plate can play the supporting role to roof and pitch surface course to promote the compressive capacity on pitch surface course, guarantee the performance on road surface.

Preferably, a waterproof layer is further arranged between the drainage layer and the base layer.

Through adopting above-mentioned technical scheme, the waterproof layer can play the separation effect to the inside water of infiltration pitch surface course for the rainwater is difficult for continuing to the infiltration in the basal layer, thereby promotes the anti rainwater corrosion's of road surface structure performance.

Preferably, the bottom end of the transverse ditch extends to the waterproof layer; the waterproof layer is located between two adjacent transverse grooves and protrudes upwards in a conical shape.

Through adopting above-mentioned technical scheme, the rainwater on the waterproof layer can directly flow into inside the horizontal ditch for the rainwater can be along horizontal ditch discharge, reduces the corruption of rainwater to the road surface.

In summary, the present application includes at least one of the following beneficial technical effects:

1. rainwater permeating into the asphalt pavement can be drained out of the pavement through drainage ditches arranged in the drainage layer, so that the rainwater is not easy to accumulate in the pavement structure, the corrosion of the rainwater on the bridge pavement structure is reduced, and the service life of the bridge pavement structure is ensured;

2. a plurality of longitudinal ditches are arranged between the two transverse ditches, and the longitudinal ditches can communicate the transverse ditches with each other so as to facilitate rainwater to intensively flow into the transverse ditches, thereby improving the drainage efficiency of the drainage layer; the retainers are arranged in the transverse back part and the longitudinal grooves, and can support the asphalt surface layer, so that the bearing capacity of the pavement is ensured, and the asphalt pavement is not easy to collapse;

3. still be provided with the waterproof layer between drainage blanket and the basic unit, the waterproof layer can play the separation effect to the inside water of infiltration pitch surface course for the rainwater is difficult for continuing to the infiltration in the basic unit, thereby promotes the anti rainwater corrosion's of road surface structure performance.

Drawings

FIG. 1 is a schematic structural view of an asphalt pavement structure;

fig. 2 is an exploded view of the asphalt pavement structure.

In the drawings, the reference numbers: 1. an asphalt surface layer; 2. a drainage layer; 21. transverse ditches; 22. longitudinal furrows; 23. a holder; 231. a base plate; 232. a support plate; 233. a top plate; 3. a waterproof layer; 4. a base layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses bituminous paving structure. Referring to fig. 1 and 2, the asphalt pavement structure includes an asphalt pavement 1, a drainage layer 2, a waterproof layer 3, and a base layer 4 laid from the top to the bottom. The base course 4 serves as a foundation of the road surface and determines the bearing capacity of the road surface. The waterproof layer 3 can make rainwater not easily permeate into the base layer 4. A plurality of transverse ditches 21 and a plurality of longitudinal ditches 22 are arranged inside the drainage layer 2, and rainwater can be concentrated in the longitudinal ditches 22 and the transverse ditches 21 after permeating into the drainage layer 2 through the asphalt surface layer 1 and is discharged out of the pavement structure through the transverse ditches 21.

Referring to fig. 1 and 2, the transverse grooves 21 are formed along the width direction of the road surface, a plurality of transverse grooves 21 are uniformly distributed along the length direction of the road surface, and the lower ends of the transverse grooves 21 are opened, so that the waterproof layer 3 serves as the bottom surfaces of the transverse grooves 21. The part of the waterproof layer 3 between two adjacent transverse ditches 21 protrudes upwards, and the cross section of the protruding part is triangular, so that the waterproof layer 3 can guide rainwater to facilitate the rainwater to flow into the transverse ditches 21.

Referring to fig. 2, the longitudinal grooves 22 are located between two adjacent transverse grooves 21, the longitudinal grooves 22 are arranged along the length direction of the road surface, and the plurality of longitudinal grooves 22 are uniformly distributed along the length direction of the transverse grooves 21. Both ends of the longitudinal groove 22 communicate with the lateral grooves 21. The longitudinal trench 22 has a central position in the length direction thereof located above the lateral trench 21, and both ends in the length direction of the longitudinal trench 22 are inclined downward so that rainwater can flow into the lateral trench 21 from the inside of the longitudinal trench 22.

Referring to fig. 2, the cross-sections of the lateral grooves 21 and the longitudinal grooves 22 are each trapezoidal, and the bottom side of the trapezoid is located above the top side. The retainers 23 are provided in both the lateral grooves 21 and the longitudinal grooves 22. The retainers 23 located inside the lateral grooves 21 are provided along the longitudinal direction of the lateral grooves 21, and the retainers 23 located inside the vertical grooves 22 are provided along the longitudinal direction of the vertical grooves 22.

Referring to fig. 2, the holder 23 includes a bottom plate 231, a top plate 233, and a support plate 232, and the support plate 232 is vertically disposed between the top plate 233 and the bottom plate 231. The upper end of the support plate 232 of the holder 23 positioned in the lateral groove 21 is connected to the top plate 233, and the lower end is connected to the bottom plate 231. The upper end of the top plate 233 is abutted against the asphalt surface layer 1, and the lower end of the bottom plate 231 is abutted against the waterproof layer 3, so that the retainer 23 can support the asphalt surface layer 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An asphalt pavement paving structure comprises a base layer (4) and an asphalt surface layer (1); the method is characterized in that: still be provided with drainage blanket (2) between basic unit (4) and pitch surface course (1), horizontal ditch (21) have been seted up to drainage blanket (2) inside, horizontal ditch (21) set up along road width direction.

2. The asphalt pavement structure according to claim 1, wherein: adjacent two be provided with many between horizontal ditch (21) indulge ditch (22), many it is evenly distributed along horizontal ditch (21) length direction to indulge ditch (22), the both ends of indulging ditch (22) all communicate with horizontal ditch (21).

3. The asphalt pavement structure according to claim 2, wherein: the center position of the longitudinal groove (22) in the length direction is positioned above the transverse groove (21), and both ends of the longitudinal groove (22) are inclined downwards.

4. The asphalt pavement structure according to claim 2, wherein: the cross sections of the transverse grooves (21) and the longitudinal grooves (22) are both trapezoidal, and the bottom edges of the trapezoids are located above the top edges.

5. The asphalt pavement structure according to claim 1, wherein: the holders (23) are arranged in the transverse groove (21) and the longitudinal groove (22), the holders (23) in the transverse groove (21) are arranged along the length direction of the transverse groove (21), and the holders (23) in the longitudinal groove (22) are arranged along the length direction of the longitudinal groove (22).

6. The asphalt pavement structure according to claim 5, wherein: the holder (23) includes a bottom plate (231), a top plate (233) disposed above the bottom plate (231), and a support plate (232) disposed between the top plate (233) and the plate.

7. The asphalt pavement structure according to claim 1, wherein: and a waterproof layer (3) is also arranged between the drainage layer (2) and the base layer (4).

8. The asphalt pavement structure according to claim 7, wherein: the bottom end of the transverse ditch (21) extends to the waterproof layer (3); the waterproof layer (3) is positioned between two adjacent transverse grooves (21) and protrudes upwards.