CN214362671U

CN214362671U - Anti-icing highway pavement structure

Info

Publication number: CN214362671U
Application number: CN202023062848.7U
Authority: CN
Inventors: 牛安军; 张鹏; 牛艳辉; 潘刚
Original assignee: Henan Future Transportation Technology Co Ltd
Current assignee: Henan Future Transportation Technology Co Ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-10-08
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses an anti-icing highway pavement structure, including subbase, semi-rigid layer, pitch lower surface course, rubber granule pitch mixture bed, the fine grain formula pitch mixture bed that set up above the road bed and lay in proper order from the bottom up, the equidistant recess of seting up of upper surface of fine grain formula pitch mixture bed, the upper surface of fine grain formula pitch mixture bed and recess medial surface have all coated polyurethane ethyl formate layer, the recess intussuseption is filled with the rubber strip, rubber strip upper surface exceeds fine grain formula pitch mixture bed upper surface; the utility model discloses can reduce the adhesive force of ice and snow on the road surface to improve the anti ability of freezing on road surface, and, the rubber strip is rolling the back at the driving, because the elasticity on rubber layer, can make the ice sheet on the road surface automatic break, can not make the ice sheet freeze the road surface for a long time, reduce the emergence of the phenomenon of freezing by a large scale.

Description

Anti-icing highway pavement structure

Technical Field

The utility model belongs to the technical field of highway road surface, a highway road surface structure of anti-icing is related to.

Background

The existing semi-rigid base asphalt pavement is used as the main pavement type of highways in China and has the advantages of high pavement strength, strong bearing capacity, good stability, thin asphalt layer, low engineering cost and the like.

However, in rainy and snowy weather, the road surface is easy to freeze, which is not beneficial to the safe driving of drivers, especially on bridge deck and curve, and these places are most easy to freeze in large area, causing traffic accidents and affecting traffic safety.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides an anti-icing highway road surface structure, fine solution among the prior art the road freeze the problem that takes place the traffic accident easily.

In order to realize the purpose, the utility model discloses a technical scheme as follows: the utility model provides an anti-icing highway pavement structure, is including setting up underlayment, semi-rigid layer, the pitch lower surface course, rubber granule pitch mixture layer, the fine grain formula pitch mixture layer of laying in proper order above the road bed and from the bottom up, the upper surface of fine grain formula pitch mixture layer is equidistant to be seted up flutedly, the upper surface and the recess medial surface of fine grain formula pitch mixture layer have all been coated with polyurethane ethyl acetate layer, the recess intussuseption is filled with the rubber strip, the rubber strip upper surface exceeds fine grain formula pitch mixture layer upper surface.

Furthermore, the grooves are formed along the paving direction of the road.

Further, the depth and the width of the groove are 0.5-1cm and 0.2-0.5cm respectively.

Furthermore, the upper surface of the rubber strip is 0.3-0.Scm higher than the upper surface of the fine-grain asphalt mixture layer.

Further, the length of the rubber strips is 20-30cm, and the rubber strips are arranged at equal intervals along the groove opening direction.

Furthermore, the rubber strips in the adjacent grooves are arranged in a staggered mode.

Furthermore, the thickness of the subbase layer is 15-20cm, the thickness of the semi-rigid base layer is 35-40cm, the thickness of the lower layer of the asphalt is 8-10cm, the thickness of the rubber particle asphalt mixture layer is 2-3cm, and the thickness of the fine particle asphalt mixture layer is 2-3 cm.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in, can reduce the adhesive force of ice and snow on the road surface to improve the anti ability of freezing on road surface, and, the rubber strip is rolling the back at the driving, because the elasticity on rubber layer can make the ice sheet on the road surface automatic break, can not make the ice sheet freeze the road surface for a long time on, reduce the emergence of the phenomenon of freezing by a large scale.

2. The utility model discloses in, the recess is seted up along the direction that the highway was laid, avoids the driving tire to produce bigger vibration, improves the driving comfort level.

Drawings

FIG. 1 is a cross-sectional view of a pavement of the present invention;

FIG. 2 is a partial top view of the pavement of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 1.

In the figure: the asphalt composite material comprises a base layer (1), a semi-rigid layer (2), an asphalt lower layer (3), a rubber particle asphalt mixture layer (4), a fine particle asphalt mixture layer (5), grooves (6), a polyurethane layer (7) and rubber strips (8).

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, the utility model discloses an anti-icing highway pavement structure, including subbase 1, semi-rigid layer 2, pitch lower surface course 3, rubber granule pitch mixture layer 4, the fine grain formula pitch mixture layer 5 that set up above the road bed and lay in proper order from the bottom up, the equidistant recess 6 that has seted up of upper surface of fine grain formula pitch mixture layer 5, the upper surface of fine grain formula pitch mixture layer 5 and recess 6 medial surface have all coated polyurethane acid ethyl ester layer 7, the recess 6 intussuseption is filled with rubber strip 8, rubber strip 8 upper surface exceeds fine grain formula pitch mixture layer 5 upper surface; the thickness of the subbase layer 1 is 15-20cm, the thickness of the semi-rigid base layer is 35-40cm, the thickness of the asphalt lower surface layer 3 is 8-10cm, the thickness of the rubber particle asphalt mixture layer 4 is 2-3cm, and the thickness of the fine particle type asphalt mixture layer 5 is 2-3 cm.

When the technical scheme is implemented, an underlayer 1, a semi-rigid layer 2, an asphalt lower surface layer 3, a rubber particle asphalt mixture layer 4 and a fine particle type asphalt mixture layer 5 are sequentially laid, grooves 6 are formed in the upper surface of the fine particle type asphalt mixture layer 5 at equal intervals, then the paved road surface and the grooves 6 are soaked by using polyurethane, a polyurethane layer 7 is formed on the upper surface of the fine particle type asphalt mixture layer 5 and the inner side surfaces of the grooves 6, the polyurethane layer 7 has good elasticity and smoothness, the adhesion of ice and snow can be reduced, and the ice and snow are prevented from being frozen on the road surface; fix rubber strip 8 to the recess 6 in through rubber granule bituminous mixture to rubber granule bituminous mixture can also fill the clearance between recess 6 and the rubber strip 8, prevents that rubber strip 8 from droing, and rubber strip 8 rolls the back at the driving, because the elasticity on rubber layer can make the ice sheet on the road surface automatic break, can not make the ice sheet freeze the road surface for a long time on, reduces the emergence of the phenomenon of freezing by a large scale, the utility model discloses simple structure can avoid the easy emergence of the phenomenon of freezing on road surface, reduces the traffic accident.

In this embodiment, recess 6 is seted up along the highway direction of laying, and rubber strip 8 also sets up along the highway direction of laying, when the driving rolled rubber strip 8, avoided the driving tire to produce great vibration, improved driving comfort level.

In this embodiment, the depth and width of the groove 6 are 0.5-1cm and 0.2-0.5cm, respectively, and the upper surface of the rubber strip 8 is 0.3-0.8cm higher than the upper surface of the fine-grained asphalt mixture layer 5.

In the embodiment, the length of the rubber strip 8 is 20-30cm, and the rubber strip 8 is arranged at equal intervals along the direction of the groove 6; the rubber strips 8 in the adjacent grooves 6 are arranged in a staggered mode, so that the flatness of the upper surface of the fine particle type asphalt mixture layer 5 can be prevented from being reduced, ice and snow are prevented from being frozen on the road surface, and the ice and snow freezing inhibiting capability of the road surface is improved.

In the embodiment, the fine particle type asphalt mixture layer 5 is an asphalt mixture with the maximum aggregate particle size of 9.5mm or 13.2mm, the rubber particle asphalt mixture layer 4 is prepared by a wet method, the raw materials comprise silane coupling agent, 30-mesh rubber powder of car tires and SK-90 road petroleum asphalt in the mass ratio of 0.5: 1: 5 in sequence, and the rubber particle asphalt mixture layer 4 is used as a transition layer to ensure that the surface layer and the surface layer are well combined by utilizing the high bonding force of the rubber asphalt. The subbase layer 1 is a cement-stabilized macadam base layer and consists of cement and macadam, and the mixing ratio of the cement to the macadam is 6-8: 90. The lower asphalt surface layer 3 is an asphalt concrete surface layer, and the semi-rigid base layer is made of one of fly ash stabilized soil or ash particles and lime.

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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An anti-icing highway road surface structure which characterized in that: including setting up in roadbed top and underlayment, semi-rigid layer, pitch lower surface course, rubber granule pitch mixture layer, the fine grain formula pitch mixture layer of laying in proper order from the bottom up, the upper surface of fine grain formula pitch mixture layer is equidistant to be seted up flutedly, the upper surface and the recess medial surface of fine grain formula pitch mixture layer all coat and have polyurethane ethyl ester layer, the recess intussuseption is filled with the rubber strip, the rubber strip upper surface exceeds fine grain formula pitch mixture layer upper surface.

2. An ice protected highway pavement structure according to claim 1, further comprising: the grooves are formed along the paving direction of the road.

3. Ice protected road pavement structure according to claim 1 or 2, characterized in that: the depth and width of the groove are 0.5-1cm and 0.2-0.5cm respectively.

4. An ice protected highway pavement structure according to claim 1, further comprising: the upper surface of the rubber strip is 0.3-0.8cm higher than the upper surface of the fine-grain asphalt mixture layer.

5. An ice protected highway pavement structure according to claim 1, further comprising: the length of the rubber strips is 20-30cm, and the rubber strips are arranged at equal intervals along the groove opening direction.

6. An ice protected road pavement structure as claimed in claim 5, wherein: the rubber strips in the adjacent grooves are arranged in a staggered mode.

7. An ice protected highway pavement structure according to claim 1, further comprising: the thickness of the base layer is 15-20cm, the thickness of the semi-rigid base layer is 35-40cm, the thickness of the lower layer of asphalt is 8-10cm, the thickness of the rubber particle asphalt mixture layer is 2-3cm, and the thickness of the fine particle asphalt mixture layer is 2-3 cm.