CN218436437U

CN218436437U - Drainage bituminous pavement structure

Info

Publication number: CN218436437U
Application number: CN202221588481.9U
Authority: CN
Inventors: 崔言晨; 李晋; 袁凯; 杜连平; 吕晨; 王胜利; 于淼章
Original assignee: Shandong Jiaotong University
Current assignee: Shandong Jiaotong University
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2023-02-03
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a drainage bituminous paving structure relates to bituminous paving technical field, has solved the poor problem of current bituminous paving structure drainage performance, has improved the security that bituminous paving rainy day used, and concrete scheme is as follows: include pavement layer, tamp layer and the ground basic unit that from the top down set gradually, the pavement layer is double-deck pitch structure, the upper surface on tamp layer is equipped with a plurality of water drainage tank, be equipped with the sand sediment trap that is used for collecing the rainwater in the ground basic unit, water drainage tank's bottom is passed through drain pipe and sand sediment trap intercommunication.

Description

Drainage bituminous pavement structure

Technical Field

The utility model belongs to the technical field of bituminous paving technique and specifically relates to a drainage bituminous pavement structure.

Background

The asphalt pavement is characterized by that it mixes mineral material with various kinds of pavement paved with asphalt material, and the asphalt structure layer of the asphalt pavement belongs to the field of flexible pavement, and its base layer can also adopt rigid cement concrete or semi-rigid hydraulic material besides flexible material, and the asphalt pavement can generally use asphalt binder to raise the resistance of paving aggregate to damage of running and natural factors to pavement.

The inventor finds that the existing asphalt pavement structure has poor drainage performance, and water permeating into the asphalt pavement cannot be drained timely under the influence of the rigid cement concrete/semi-rigid hydraulic material of a base layer when the existing asphalt pavement structure is in rainy weather (for example, CN209636580U, CN215800758U, CN216999115U in the prior art), so that the asphalt pavement is wet and slippery due to water accumulation, and the safety of the asphalt pavement is seriously affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough that prior art exists, the utility model aims at providing a drainage bituminous paving structure has set gradually pavement layer, tamped layer and foundation layer from the top down, through the use strength of tamped layer reinforcing pavement layer, set up the sand sediment well in the foundation layer to set up water drainage tank at the upper surface on tamped layer, utilize the drain pipe with water drainage tank, sand sediment well intercommunication, the water accessible water drainage tank of pavement layer, drain pipe, the discharge of sand sediment well, solved the poor problem of current bituminous paving structure drainage performance.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

in a first aspect, the embodiment of the utility model provides a drainage bituminous paving structure, include the road surface layer, tamp layer and the ground basic unit that set gradually from the top down, the road surface layer is double-deck asphalt structure, the upper surface on tamp layer is equipped with a plurality of water drainage tank, be equipped with the sand sediment trap that is used for compiling the rainwater in the ground basic unit, drain pipe and sand sediment trap intercommunication are passed through to the bottom of water drainage tank.

As a further implementation manner, the road surface layer is composed of a coarse asphalt layer and a fine asphalt layer, the coarse asphalt layer is located below the fine asphalt layer, and the thickness of the coarse asphalt layer is greater than that of the fine asphalt layer.

As a further implementation, the rammed layer is composed of a rammed gravel layer and a concrete layer, and the rammed gravel layer is located below the concrete layer.

As a further realization, the thickness of the rammed gravel layer is the same as the thickness of the concrete layer.

As a further implementation, the tamped gravel layer is formed by tiling a plurality of gravel.

As a further implementation, the upper surface of the concrete layer is provided with a plurality of drainage grooves.

As a further implementation, the depth of the drainage channel is less than the thickness of the concrete layer.

As a further realization mode, the drainage channels are transversely and longitudinally arranged in a crossed mode to form a net structure.

As a further realisation, the bottom of the gutter slopes towards the adjacent drain pipe.

As a further implementation, the sand sediment trap is in communication with an existing municipal drainage system on the peripheral side.

Above-mentioned the utility model has the advantages as follows:

1) The utility model discloses from the top down has set gradually pavement layer, tamp layer and ground basic unit, through the use intensity of ramming layer reinforcing pavement layer, set up the sand sediment trap in the ground basic unit to set up water drainage tank at the upper surface on ramming layer, utilize the drain pipe with water drainage tank, sand sediment trap intercommunication, the water accessible water drainage tank that pavement layer infiltration got into, drain pipe, sand sediment trap in time discharge, avoided the wet and slippery of bituminous paving because of ponding causes, improved the safety in utilization of bituminous paving rainy day.

2) The utility model discloses tamp the rubble layer and lie in concrete layer's below, tamp the use intensity of rubble layer multiplicable concrete layer and road surface layer, prevent that the road surface from crossing the appearance because of intensity is low excessively and collapsing.

3) The utility model discloses water drainage tank is horizontal, vertical cross arrangement becomes network structure at concrete layer's upper surface, and water drainage tank can carry out effectual collection with the water that oozes in the coarse asphalt layer to improve the collection and the discharge efficiency of rainwater.

4) The utility model discloses the tank bottom of water drainage tank inclines towards neighbouring drain pipe, and the rainwater that oozes from the pavement layer can fall into in the water drainage tank and along the tank bottom flow along neighbouring drain pipe of orientation and collect, has improved the discharge velocity of rainwater greatly.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to constitute a limitation on the invention.

Fig. 1 is a schematic view of the overall structure of a drainage asphalt pavement structure according to one or more embodiments of the present invention;

fig. 2 is a schematic structural view of a pavement layer according to one or more embodiments of the present disclosure;

FIG. 3 is a schematic diagram of a structure of a foundation layer according to one or more embodiments of the present invention;

in the figure: the mutual spacing or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;

wherein, 1, a ground layer; 2. tamping the layer; 21. tamping the crushed stone layer; 22. a concrete layer; 3. A pavement layer; 31. a coarse asphalt layer; 32. a fine asphalt layer; 4. a sand sediment trap; 5. a water discharge tank; 6. And a water discharge pipe.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Just as the background art introduces, present bituminous paving structure drainage performance is poor, when meetting rainy weather, receives basic unit's rigidity cement concrete/semi-rigidity hydraulic material's influence, and the water that bituminous paving permeates into can't in time discharge, leads to bituminous paving to cause the wet and slippery because of ponding, seriously influences the problem of bituminous paving's security, for solving above-mentioned problem, the utility model provides a drainage bituminous paving structure.

Example 1

In a typical embodiment of the present invention, as shown in fig. 1-3, a drainage asphalt pavement structure is provided, which comprises a foundation layer 1, a tamping layer 2 and a pavement layer 3, wherein the foundation layer 1 is located below the tamping layer 2, and the pavement layer 3 is located above the tamping layer 2.

As shown in fig. 2, the pavement layer 3 is a double-layer asphalt structure, which is a coarse asphalt layer 31 and a fine asphalt layer 32, the coarse asphalt layer 31 is located below the fine asphalt layer 32, and the asphalt particle size of the coarse asphalt layer 31 is larger than that of the fine asphalt layer 32, so that infiltration and drainage of rainwater in the pavement layer 3 can be accelerated; the fine asphalt layer 32 is effective in reducing the accumulation of road dust.

In this embodiment, the coarse asphalt layer 31 is of an AC-25 specification, and the nominal maximum particle size is 26.5mm; the fine asphalt layer 32 is of the AC-13 specification with a nominal maximum particle size of 13.2mm.

It is understood that in other embodiments, the fine asphalt layer 32 may also be selected to have an AC-10 gauge with a nominal maximum particle size of 9.5mm.

The thickness of the coarse asphalt layer 31 is greater than that of the fine asphalt layer 32, in this embodiment, the thickness of the coarse asphalt layer 31 is 15mm, and the thickness of the fine asphalt layer 32 is 2mm, in other embodiments, the thicknesses of the coarse asphalt layer 31 and the fine asphalt layer 32 may be other thicknesses, and the specific thickness may be determined according to actual design requirements, which is not limited herein.

As shown in fig. 1, the rammed layer 2 is also a double-layer structure, which is a rammed rubble layer 21 and a concrete layer 22, wherein the rammed rubble layer 21 is located below the concrete layer 22, and the rammed rubble layer 21 and the concrete layer 22 can increase the service strength of the pavement layer 3, and prevent the pavement from collapsing due to too low strength.

Tamped rubble layer 21 is formed by the tiling of a plurality of rubbles, tamp, can support the concrete layer 22 above it on the one hand to improve concrete layer 22's support intensity, the clearance between the on the other hand rubble has made things convenient for the passing through of rainwater, has improved drainage performance.

Concrete layer 22 can be of the type of grade C15, C25, C30, etc., and the grain composition of the crushed stone and the grade of the concrete can be selected according to the actual design requirements, without any limitation, as long as the compressive strength can be ensured.

In the embodiment, the thickness of the tamped gravel layer 21 is 150mm, and the thickness of the concrete layer 22 is 150mm, it can be understood that the specific thicknesses of the tamped gravel layer 21 and the concrete layer 22 in practical application can be determined according to the practical design requirements.

A plurality of water drainage channels 5 have been seted up to the upper surface of concrete layer 22, and water drainage channels 5 transversely, vertically cross arrangement become network structure at the upper surface of concrete layer 22, and water drainage channels 5 can carry out effectual collection from the water that oozes in the thick pitch layer 31.

It should be noted that the depth of the drainage channels 5 must not be greater than the thickness of the concrete layer 22 in order to avoid an influence on the strength of the concrete layer 22.

And a plurality of drain pipes 6 are further arranged, one ends of the drain pipes 6 are communicated with the bottom of the drain tank 5, the other ends of the drain pipes 6 downwards penetrate through the concrete layer 22 and the tamped gravel layer 21 in sequence and are communicated with the sand sediment well 4 in the foundation layer 1, and the rain and sewage mixture in the drain tank 5 can be intensively discharged into the sand sediment well 4.

In order to further facilitate the collection of rainwater, the bottom of the drainage channel 5 has a set slope, specifically, the bottom of the drainage channel 5 is inclined towards the adjacent drainage pipe 6, and rainwater seeping from the pavement layer 3 can fall into the drainage channel 5 and flow along the bottom of the channel towards the adjacent drainage pipe 6 to be collected.

The sand sediment trap 4 sets up in the foundation of the earth 1, and sand sediment trap 4 is current structure, and sand sediment trap 4 still communicates with the existing municipal drainage system of road surface structure week side, and the rainwater in the drain pipe 6 can collect and carry out the sediment of silt, debris in the sand sediment trap 4 and be discharged to municipal drainage system in, can effectively avoid debris to municipal drainage system's jam.

It can be understood that the number of the sand sediment trap 4 can be set according to actual requirements as long as rainwater in all the drainage pipes 6 can be collected, and the specific number is not limited too much here.

When meetting rainy day, the rainwater can permeate in the surface course 3 and ooze from the surface course 3, and the rainwater of oozing can get into water drainage tank 5 in, and the rainwater collects the sand sediment well 4 under water drainage tank 5's water conservancy diversion effect in, deposits and finally discharges in sand sediment well 4 for the water that the road surface infiltration got into can be timely discharge, has avoided the moist and slippery of bituminous paving because of ponding causes, has improved the safety in utilization of bituminous paving rainy day.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a drainage bituminous paving structure, its characterized in that includes road surface layer, tamp layer and the basement layer that sets gradually from the top down, the road surface layer is double-deck asphalt structure, the upper surface on tamp layer is equipped with a plurality of water drainage tank, be equipped with the sand sediment well that is used for compiling the rainwater in the basement layer, drain pipe and sand sediment well intercommunication are passed through to water drainage tank's bottom.

2. A drainage asphalt pavement structure according to claim 1, wherein said pavement layer is composed of a coarse asphalt layer and a fine asphalt layer, said coarse asphalt layer being located below said fine asphalt layer, said coarse asphalt layer having a thickness greater than that of said fine asphalt layer.

3. A drainage asphalt pavement structure according to claim 1, characterized in that said rammed layer is composed of a layer of rammed rubble and a layer of concrete, said layer of rammed rubble being located under the layer of concrete.

4. A drainage asphalt pavement structure according to claim 3, wherein the thickness of said tamped gravel layer is the same as the thickness of the concrete layer.

5. A drainage asphalt pavement structure according to claim 3, wherein said compacted gravel layer is formed by laying a plurality of crushed stones.

6. A drainage asphalt pavement structure according to claim 3, wherein the upper surface of the concrete layer is provided with a plurality of drainage channels.

7. A draining bituminous pavement structure according to claim 6, characterized in that the depth of said drainage channels is less than the thickness of the concrete layer.

8. A drainage asphalt pavement structure according to claim 1, wherein said drainage channels are arranged crosswise in a network structure in the transverse and longitudinal directions.

9. A draining asphalt pavement structure according to claim 1, wherein the bottom of said water drainage groove is inclined toward the adjacent water drainage pipe.

10. The drainage asphalt pavement structure according to claim 1, wherein the sand trap is communicated with a peripheral existing municipal drainage system.