CN213653097U

CN213653097U - Electric heating type self-snow-melting asphalt pavement heating wire packaging structure

Info

Publication number: CN213653097U
Application number: CN202022155945.4U
Authority: CN
Inventors: 刘状壮; 张有为; 沙爱民; 叶铜; 焦文秀; 李林
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-07-09
Anticipated expiration: 2030-09-27

Abstract

The utility model relates to an electrothermal heating wire packaging structure of self-snow-melting asphalt pavement, the upper surface of the lower surface layer of the asphalt pavement is provided with a plurality of groups of grooves, the heating wire can be placed in the grooves, then the upper surface layer of the asphalt pavement and a cement concrete pavement are laid on the upper surface of the lower surface layer of the asphalt pavement, thus, part of the width of the pavement is asphalt of a material, the consistency and the stability are good, the stress damage of the upper surface layer of the asphalt pavement and the vehicle load to the heating wire can be reduced to the maximum extent, and the service life of the heating wire is prolonged; the protective shell is used for protecting the edge of the pavement, waterproof glue is injected into the joint, the integrity of the pavement is further ensured, the design of the protective shell and the groove can ensure that the heating line can freely stretch out and draw back in the lower surface layer of the asphalt pavement and the cement concrete pavement, the maintenance and the repair are convenient, and the strength and the stability of the joint of the asphalt pavement and the hydraulic concrete pavement can be improved by adopting a lap joint type joint treatment mode.

Description

Electric heating type self-snow-melting asphalt pavement heating wire packaging structure

Technical Field

The utility model relates to a snow melt road surface packaging technology specifically is an electric heat formula is from snow melt bituminous paving's line packaging structure that generates heat.

Background

At present, more than 70% of roads in China in winter are affected by ice and snow weather, and serious traffic accidents caused by snow and ice on the road surface are hundreds of times every year, so that a great amount of casualties and property loss are caused. At present, the snow and ice melting technology in China mainly adopts a mechanical method and a chemical snow melting agent method, and the research on self-snow-melting asphalt pavements is less.

At present, the electric heating type is from melting snow bituminous paving is the most one type of research in the snow road surface, and it produces the heat through to the line that generates heat with appropriate electric current, then conducts the heat to the road surface, reaches the purpose of snow melt ice, compares in traditional snow melt mode, and it has environmental protection, high efficiency, convenient characteristics. For the packaging of the electric heating type self-snow-melting asphalt pavement heating wire, the current researchers usually adopt cement concrete to directly package, and some problems also exist in practical application: firstly, the heating wire is pre-embedded in the road and directly fixed in the cement concrete, once the heating wire is damaged, the maintenance difficulty is high, the maintenance cost is high, and the pavement evenness and the service life of the road can be seriously influenced; secondly, the electric heating type self-snow-melting road surface usually needs to connect the heating wire with the power supply on one side of the road, if external moisture enters the road surface from the joint, the danger of power supply short circuit can be caused in serious conditions, although the problem of moisture infiltration can be solved to a certain extent by the measure, the joint contacted with the asphalt surface layer is easy to generate a groove or even peel and sink due to the difference of the rigidity of two materials of asphalt and cement concrete.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides an electric heat formula is from snow melt bituminous paving's line packaging structure that generates heat, simple structure, simple to operate, the working costs is low, and is reasonable, effective, safe, can reduce bituminous paving upper surface layer and vehicle load to the stress failure of line that generates heat in the at utmost, extension line life that generates heat, the maintenance of being convenient for.

The utility model discloses a realize through following technical scheme:

a heating wire packaging structure of an electrothermal self-snow-melting asphalt pavement comprises a heating wire, a cement concrete pavement, an asphalt pavement and a protective shell;

the asphalt pavement comprises an asphalt pavement lower surface layer and an asphalt pavement upper surface layer, wherein the asphalt pavement lower surface layer is laid on the upper surface of an asphalt pavement base layer, the upper surface of the asphalt pavement lower surface layer is provided with a plurality of groups of grooves, the asphalt pavement upper surface layer and the cement concrete pavement with the same height are laid on the upper surface of the asphalt pavement lower surface layer, the cement concrete pavement is positioned at the edge of the asphalt pavement lower surface layer, the asphalt pavement upper surface layer and the cement concrete pavement are respectively flush with the two ends of the asphalt pavement lower surface layer, one end of the asphalt pavement upper surface layer and one end of the cement concrete pavement are lapped to form a joint, and waterproof glue is injected into the joint;

the heating wire one-to-one set up in every recess of bituminous paving lower surface course, the both ends of heating wire are located same one side of bituminous paving lower surface course, cement concrete pavement and the position that every recess of bituminous paving lower surface course upper end is relative are provided with the pit, the protective housing is laid in the recess of bituminous paving lower surface course and the pit of cement concrete pavement, the protective housing stretches out cement concrete pavement and bituminous paving lower surface course setting, the both ends of heating wire are used for connecting power supply unit after passing the protective housing respectively.

Preferably, the shape formed at the joint of the upper surface layer of the asphalt pavement and the cement concrete pavement is L-shaped.

Further, the ratio of the height of the L-shaped vertical section to the height of the cement concrete pavement is 1: (2-3).

Preferably, the protective shell is a hard tube.

Furthermore, the hard tube is made of plastic.

Preferably, each groove of the asphalt pavement lower surface layer forms a U-shaped structure.

Preferably, the plurality of groups of grooves of the lower surface layer of the asphalt pavement are uniformly distributed along the length direction of the asphalt pavement.

Preferably, the ratio of the length of the upper surface of the cement concrete pavement to the length of the upper surface of the upper layer of the asphalt pavement is 1: (4-6).

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

the utility model relates to an electrothermal heating wire packaging structure of self-snow-melting bituminous pavement, the upper surface of the lower surface course of bituminous pavement is provided with a plurality of groups of grooves, the heating wire can be placed in the grooves, then the upper surface course of bituminous pavement and cement concrete pavement are laid on the upper surface of the lower surface course of bituminous pavement, thus, a part of the width of the pavement is the asphalt of a material, the consistency and the stability are good, the stress damage of the upper surface course of bituminous pavement and the vehicle load to the heating wire can be reduced to the maximum extent, and the service life of the heating wire is prolonged; the protective shell is used for protecting the edge of the pavement, waterproof glue is injected into the joint, the integrity of the pavement is further ensured, the design of the protective shell and the groove can ensure that the heating line can freely stretch out and draw back in the lower surface layer of the asphalt pavement and the cement concrete pavement, the maintenance and the repair are convenient, and the strength and the stability of the joint of the asphalt pavement and the hydraulic concrete pavement can be improved by adopting a lap joint type joint treatment mode.

Furthermore, when the burying depth and the burying position of the heating wire are not properly set, the snow melting and deicing efficiency of the snow melting pavement and the road use performance can be seriously influenced, and a plurality of groups of grooves of the lower surface layer of the asphalt pavement are uniformly distributed along the length direction of the asphalt pavement, so that the snow melting and deicing efficiency of the snow melting pavement is improved.

Drawings

FIG. 1 is a schematic structural view of a heating wire packaging part of the self-snow-melting road surface of the present invention;

FIG. 2 is a schematic view of the whole structure of the heating wire package of the self-snow-melting road surface of the present invention;

fig. 3 is a schematic longitudinal sectional view of fig. 2.

In the figure: 1-heating line, 2-lower surface layer of asphalt pavement, 3-base layer of asphalt pavement, 4-upper surface layer of asphalt pavement, 5-cement concrete pavement, 6-hard pipe and 7-joint.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings, which are provided for purposes of illustration and not limitation.

The utility model relates to an electrothermal type is from snow melt bituminous paving's line packaging structure that generates heat, as shown in fig. 1 and fig. 2, including line 1, cement concrete pavement 5, bituminous paving and the protective housing that generates heat.

Bituminous paving includes bituminous paving lower surface course 2 and bituminous paving upper surface course 4, bituminous paving lower surface course 2 lays on bituminous paving basic unit's 3 upper surface, bituminous paving lower surface course 2's upper surface is provided with a plurality of groups recess, highly the same bituminous paving upper surface course 4 and cement concrete pavement 5 lay on bituminous paving lower surface course 2's upper surface, cement concrete pavement 5 is located bituminous paving lower surface course 2's edge, the length of cement concrete pavement 5 upper surface is 1 with the length ratio of bituminous paving upper surface course 4 upper surface: (4-6), the upper asphalt pavement layer 4 and the cement concrete pavement 5 are respectively flush with the two ends of the lower asphalt pavement layer 2, a joint 7 is formed after one end of the upper asphalt pavement layer 4 is lapped with one end of the cement concrete pavement 5, and waterproof glue is injected into the joint 7 to prevent external water flow from permeating.

The heating wire 1 is an electric heating type heating wire, the heating wire 1 is correspondingly arranged in each groove of the asphalt pavement lower surface layer 2 one by one, two ends of the heating wire 1 are positioned at the same side of the asphalt pavement lower surface layer 2, a pit is arranged at the position, opposite to each groove, of the upper end of the cement concrete pavement 5 and the upper end of the asphalt pavement lower surface layer 2, the protective shell is paved in the groove of the asphalt pavement lower surface layer 2 and the pit of the cement concrete pavement 5, as shown in figure 3, the protective shell extends out of the cement concrete pavement 5 and is arranged with the asphalt pavement lower surface layer 2, and two ends of the heating wire 1 respectively penetrate through the protective shell and then are used for being connected with.

The groove on the upper surface of the lower surface layer 2 of the asphalt pavement is dug into a groove with a rectangular cross section in advance when asphalt is paved, and the wiring mode of the heating wire 1 is reciprocating wiring, namely two ends of one heating wire are positioned on the same side of the road. The heating wire 1 is paved with an upper asphalt pavement layer 4, and the heating wire 1 is uniformly connected with a power line on the right side of the road.

In this embodiment, the joint is processed by a double-layer overlapping manner, the overlapping portion of the upper asphalt pavement layer 4 and the cement concrete pavement 5 is formed into an L-shape, and the ratio of the vertical section of the L-shape to the height of the cement concrete pavement 5 is 1: (2-3). The edge of the pavement is covered with the heating wire 1 by the hard pipe 6 made of plastic, so that the heating wire 1 is not fixed by cement concrete and can freely stretch out and draw back.

Specifically, the asphalt pavement lower surface layer 2 is provided with rectangular grooves capable of placing the single heating wire 1, each groove forms a U-shaped structure, and a plurality of groups of grooves of the asphalt pavement lower surface layer 2 are uniformly arranged along the length direction of the asphalt pavement.

The utility model fully ensures that the heating wire 1 is not damaged by external factors in the service life of the road through the wiring and packaging treatment of the heating wire 1, and simultaneously, the heating wire 1 can freely stretch out and draw back due to the protection of the hard plastic pipe, thereby facilitating the line maintenance; meanwhile, by adopting the special seam processing structure, the external water flow is prevented from permeating from the edge of the road to damage the road, and the integrity of the road is fully ensured.

Claims

1. A heating wire packaging structure of an electrothermal self-snow-melting asphalt pavement is characterized by comprising a heating wire (1), a cement concrete pavement (5), an asphalt pavement and a protective shell;

the asphalt pavement comprises an asphalt pavement lower surface layer (2) and an asphalt pavement upper surface layer (4), wherein the asphalt pavement lower surface layer (2) is laid on the upper surface of an asphalt pavement base layer (3), a plurality of groups of grooves are formed in the upper surface of the asphalt pavement lower surface layer (2), the asphalt pavement upper surface layer (4) and the cement concrete pavement (5) with the same height are laid on the upper surface of the asphalt pavement lower surface layer (2), the cement concrete pavement (5) is located at the edge of the asphalt pavement lower surface layer (2), the asphalt pavement upper surface layer (4) and the cement concrete pavement (5) are respectively flush with the two ends of the asphalt pavement lower surface layer (2), a joint (7) is formed after one end of the asphalt pavement upper surface layer (4) and one end of the cement concrete pavement (5) are lapped, and waterproof glue is injected into the joint (7);

the heating wire (1) one-to-one set up in every recess of bituminous paving lower surface course (2), the both ends of heating wire (1) are located same one side of bituminous paving lower surface course (2), cement concrete pavement (5) are provided with the pit with the position that every recess of bituminous paving lower surface course (2) upper end is relative, the protective housing is laid in the recess of bituminous paving lower surface course (2) and the pit of cement concrete pavement (5), the protective housing stretches out cement concrete pavement (5) and bituminous paving lower surface course (2) setting, the both ends of heating wire (1) are used for connecting power supply unit after passing the protective housing respectively.

2. The structure of claim 1, wherein the joint between the asphalt pavement upper surface layer (4) and the cement concrete pavement (5) is formed in an L shape.

3. The structure of claim 2, wherein the ratio of the height of the L-shaped vertical section to the height of the cement concrete pavement (5) is 1: (2-3).

4. The structure of claim 1, wherein the protective casing is a rigid tube (6).

5. The structure of claim 4, wherein the rigid tube (6) is made of plastic.

6. The structure of claim 1, wherein each groove of the lower surface layer (2) forms a U-shaped structure.

7. The heating wire packaging structure of the electric heating type self-snow-melting asphalt pavement as claimed in claim 1, wherein the groups of grooves of the lower surface layer (2) of the asphalt pavement are uniformly arranged along the length direction of the asphalt pavement.

8. The structure of claim 1, wherein the ratio of the length of the upper surface of the cement concrete pavement (5) to the length of the upper surface layer (4) of the asphalt pavement is 1: (4-6).