CN217324806U

CN217324806U - Differentiation asphalt concrete pavement overlay structure based on well-divided zone construction is convenient and easy

Info

Publication number: CN217324806U
Application number: CN202121044346.3U
Authority: CN
Inventors: 王惠宁; 李万鹏; 王平; 黄卫明; 杨美坤; 张文涛; 韩小凯; 赵庆; 胡云泽; 王海阳
Original assignee: Shandong Provincial Communications Planning and Design Institute Group Co Ltd
Current assignee: Shandong Provincial Communications Planning and Design Institute Group Co Ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2022-08-30
Anticipated expiration: 2031-05-14

Abstract

The utility model discloses a differentiated asphalt concrete pavement overlay structure based on the easy construction of median zone, comprising an asphalt mixture layer and a fine stone concrete layer, wherein the fine stone concrete layer is positioned in the median zone of the road; the asphalt mixture layer is positioned on the surfaces of the roadways on two sides of the median strip, and a waterproof paint layer is coated on the surface of the fine aggregate concrete layer and extends to the asphalt mixture layer on two sides in the width direction. The middle sub-zone range inner cover surface layer is changed into a pouring fine aggregate concrete material, so that the construction difficulty and the engineering cost are greatly reduced, and the road use is not influenced. A black waterproof paint layer is made on the top surface of the fine aggregate concrete, so that the attractiveness of a road can be guaranteed, rainwater can be prevented from seeping downwards through a construction joint, the median zone and the pavement structure layer are prevented from being damaged by rainwater, and the service life of the road is guaranteed.

Description

Differentiation asphalt concrete pavement overlay structure based on well-divided zone construction is convenient and easy

Technical Field

The utility model belongs to old road is restoreed, is maintained the field, concretely relates to just easy differentiation asphalt concrete pavement top facing structure based on median strip construction.

Background

In order to treat slight diseases of the asphalt pavement and improve the service performance, the additional paving overlay becomes a main measure for the repair maintenance of the asphalt pavement, and the additional paving overlay generally paves asphalt mixture with the thickness of 4cm, so that on one hand, the overall condition of the pavement can be effectively improved, on the other hand, the development of the diseases can be effectively delayed, and the service life of the pavement can be prolonged.

For the condition that the median strip of the old road is not green and has a corrugated beam guardrail, when a pavement is paved, the traditional construction process generally comprises the steps of completely removing or cutting the upright post of the median strip guardrail, backfilling the post hole and tamping, and paving an asphalt mixture overlay layer on the pavement of the same roadway.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of above-mentioned prior art, provide a differentiation asphalt concrete pavement top facing structure based on well minute area construction is just easy, make well minute area when satisfying basic function demands such as pleasing to the eye, not ponding, the degree of difficulty and the construction cost of area construction in can also great reduction.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a convenient differentiation asphalt concrete pavement overlay structure based on median zone construction, including the asphalt mixture layer and the fine stone concrete layer, the fine stone concrete layer lay on the road median zone pavement surface; the asphalt mixture layer is laid on the surfaces of the roadways on the two sides of the median strip, a waterproof paint layer is coated on the surface of the fine aggregate concrete layer, and the waterproof paint layer extends to the asphalt mixture layer on the two sides in the width direction.

The utility model has the advantages that:

(1) the middle sub-zone in-range cover face is changed into the direct pouring of the fine aggregate concrete material, so that the road surface of the middle sub-zone can be constructed with the road difference of the two sides, namely, the middle sub-zone guardrail stand columns do not need to be removed or cut, the whole construction difficulty and the engineering cost are greatly reduced, and the road use is not influenced.

(2) A black waterproof paint layer is made on the top surface of the fine aggregate concrete, the waterproof paint layer is made to extend to the asphalt mixture top-facing layers on the two sides in the width direction, attractiveness of the road can be guaranteed, rainwater can be prevented from seeping downwards through a construction joint, a median zone and a pavement structure layer are prevented from being damaged by rainwater, and the service life of the road is guaranteed.

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 present invention;

in the figure: 1 is an asphalt mixture layer; 2 is a layer of C30 fine stone concrete; and 3 is a waterproof paint layer.

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.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "left" and "right" in the present invention, if appearing, are intended to correspond only to the left and right directions of the drawings themselves, and not to limit the structure, but merely to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Just as the background art introduces, exist not enoughly among the prior art, in order to solve above-mentioned technical problem, the utility model provides a just easy differentiation asphalt concrete way face guard based on median strip construction.

In a typical embodiment of the present invention, as shown in fig. 1, the differentiated asphalt concrete pavement structure based on median strip construction provided by this embodiment includes an asphalt mixture layer 1 and a C30 fine stone concrete layer 2, the C30 fine stone concrete layer 2 is laid on the median strip of the road, and on the basis of not removing or cutting the original guardrail column, a layer of C30 fine stone concrete layer 2 is laid on the median strip surface of the original road layer; the asphalt mixture layer 1 is paved on the roadway surface with the left side and the right side in the road, the surface of the C30 fine stone concrete layer 2 is coated with the waterproof paint layer 3, and the waterproof paint layer 3 extends to the asphalt mixture layer on the two sides (the left side and the right side in the corresponding drawing) in the width direction. The asphalt mixture layer 1, the C30 fine stone concrete layer 2 and the waterproof paint layer 3 jointly form a differential asphalt concrete pavement overlay structure, the repair of an old road is finally realized, the whole construction difficulty and the engineering cost are greatly reduced, and the use of the road is not influenced. Simultaneously, black waterproof paint layer is done at the top surface on fine stone concrete layer to this embodiment to make waterproof paint layer on the bituminous mixture finish coat that width direction extends to both sides, not only can guarantee that the road is pleasing to the eye, can also prevent that the rainwater from oozing through the construction joint, prevent that median zone and road surface structural layer from being damaged by the rainwater, guarantee road life-span.

It should be further noted that the median strip defined in this embodiment in the middle of the road includes two rows of the roads between the guardrail posts and two partial roads on both sides of the two rows of the guardrails, as shown in fig. 1.

It should be noted that the width of the waterproof paint layer 3 in the present embodiment in the asphalt mixture layer generally requires 5-8cm, as long as it can prevent rainwater from penetrating into the pavement structure layer through the construction joint.

It should be noted that, regarding the thickness of the fine stone concrete layer and the asphalt mixture layer, there may be various embodiments, for example: in the embodiment, the sum of the thickness of the fine stone concrete layer and the thickness of the waterproof paint layer is equal to the thickness of the asphalt mixture layer; or the thickness of the fine stone concrete layer is equal to that of the asphalt mixture layer, then waterproof paint is brushed, and after the waterproof paint is brushed, the height of the middle median strip is slightly higher than that of the asphalt mixture layer, but the use is not influenced on the whole. The concrete paving thickness of the fine stone concrete layer and the asphalt mixture layer can be constructed according to actual construction requirements.

The concrete implementation method of the pavement is as follows:

firstly, paving a layer of asphalt mixture above roadways on two sides of an original road, vacating a middle zone and not paving asphalt mixture; then C30 fine stone concrete is poured in the range of the median zone of the original road, and in the concrete implementation, the pouring thickness of the C30 fine stone concrete is basically the same as the thickness of the pavement asphalt mixture finish coat or slightly larger than the thickness of the pavement asphalt mixture finish coat or slightly smaller than the thickness of the pavement asphalt mixture finish coat, then black waterproof paint is applied to the top surface of the C30 fine stone concrete, the width of the waterproof paint is 5cm-8cm more than that of the C30 fine stone concrete finish coat on each side, the overlapping length of the waterproof paint and the pavement asphalt mixture finish coats on two sides is ensured to be 5cm-8cm, rainwater is prevented from permeating into a pavement structure layer through a construction joint, and the finally formed structure is shown in figure 1.

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 differential asphalt concrete pavement overlay structure based on the median zone construction is characterized by comprising an asphalt mixture layer and a fine stone concrete layer, wherein the fine stone concrete layer is paved on the pavement surface of the median zone of the road; the asphalt mixture layer is laid on the surfaces of the roadways on the two sides of the median strip, a waterproof paint layer is coated on the surface of the fine aggregate concrete layer, and the waterproof paint layer extends to the asphalt mixture layer on the two sides in the width direction.

2. The differentiated asphalt concrete pavement overlay structure based on median strip construction convenience according to claim 1, wherein the thickness of the fine stone concrete layer is equal to the thickness of the asphalt mixture layer.

3. The differentiated asphalt concrete pavement overlay structure based on median strip construction convenience and easiness according to claim 1, wherein the sum of the thickness of the fine stone concrete layer and the thickness of the waterproof paint layer is equal to the thickness of the asphalt mixture layer.

4. The differentiated asphalt concrete pavement overlay structure based on zonal isolation according to claim 1, wherein the fine stone concrete layer is a C30 fine stone concrete layer.

5. The differentiated asphalt concrete pavement overlay structure based on split-zone construction convenience according to claim 1, wherein the waterproof paint layer extends to 5-8cm of the asphalt mixture layer on both sides in the width direction.

6. The differentiated asphalt concrete pavement overlay structure based on split zone construction convenience according to claim 1, wherein the waterproof paint layer is a black waterproof paint layer.