JPH0366803A - Snow melting pavement structure - Google Patents

Abstract

PURPOSE:To facilitate incorporation, repair, and replacement of piping for melting snow and also change of piping without soaking the road surface in water by providing a groove in the back of each pavement block and installing a pipe for melting snow in the groove. CONSTITUTION:A pavement block 3 is mounted on a sand cushion layer 2 mounted on a roadbed 1 and a groove 4 is provided on the back of the pavement block 3. A copy pipe or a plastic pipe in which heat medium such as water or antifreezing solution is circulated, or a pipe 5 for melting snow which contains a heating wire or a carbon heat generator is installed in the groove 4. Heat from the pipe 5 for melting snow is conducted to the pavement block 3 to melt snow on it. The melted snow water passes through spaces between pavement blocks 3 percolate the sand cushion layer 2 and permeate the roadbed 1 quickly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a snow-melting pavement structure used on sidewalks, plazas such as parks, entrances, etc.

[Conventional technology]

Conventional methods for melting snow accumulated on roads include dissipating electricity by sprinkling groundwater on the road surface, dissipating electricity by circulating underground water by laying pipes inside concrete paving plates, and dissipating electricity by discharging groundwater on the road surface. There are methods to dissipate electricity by circulating it, and methods to dissipate electricity by running heating wires inside hollow brick tiles.

[Problem to be solved by the invention]

However, dissipating electricity by sprinkling groundwater leaves the walking surface flooded with water, creating an extremely poor walking environment, and also has environmental problems such as poor ground quality due to the use of groundwater.It is also expensive, and there are many problems in its adoption. Ta. In addition, the construction method of burying hot water pipes and heating wires in concrete or brick tiles is not only expensive, but also causes cracks due to the expansion and contraction of the concrete, resulting in accidents and snow melting effects and snow melting pipes and electric heating. There remained a problem in practical application in terms of the durability of the hot wire.

[Means to solve the problem]

In order to eliminate such drawbacks, the present invention provides a sand cushion layer on the roadbed, pipes snow melting pipes on the sand cushion layer, and lays paving blocks having grooves on the back surface on top of the sand cushion layer. Even if the snow on the paving blocks melts and turns into water due to the heat from the snow melting pipe, it quickly penetrates into the roadbed and prevents the road surface from being soaked with water, and even in the unlikely event that the snow melting pipe breaks. This project proposes a snow-melting pavement structure that can be easily repaired.

〔Example〕

The snow melting pavement structure according to the present invention will be explained in detail below using the drawings. Figure 1 is a typical example of the snow melting pavement structure mentioned above.
In the explanatory diagram for explaining an example, 1 is a roadbed, 2 is a sand cushion layer, 3 is a paving stone block, and 5 is a snow melting pipe. That is, the sand cushion layer 2 removes unevenness on the roadbed 1, enables the paving blocks 3 to be laid flat, and also allows snowmelt water to permeate into the roadbed 1, preventing the road surface from becoming water-soaked. It is also possible to make the sand cushion N2 function as a heat insulating layer by mixing shirasu balloons, perlite, etc. into the sand.

The pavement blocks 3 are made of concrete, brick, ceramic, etc., and form the road surface. As shown in FIG. 2, this pavement block 3 has a groove 4 on the back surface, and by storing a snow-melting vibrator 5 in this groove 4, the snow-melting vibrator can be used while maintaining the function of the sand cushion layer 2. 5 can be arranged. In addition, especially when the paving stone block 3 is made of concrete, it is preferable to mix metal fibers or metal pieces in order to improve compressive strength and abrasion resistance, and to improve thermal conductivity.

Further, the groove portion 4 is formed so that it can be arranged with a certain bend so as not to apply external stress to the snow melting vibrator 5. Furthermore, although the paving stone blocks 3 are shown in a rectangular shape in FIG. 2, they can also be formed in any shape such as a triangle, parallelogram, or H-shape. The snow melting vibrator 5 is a device that circulates a heat medium such as water, antifreeze, or heat carrier gas inside a steel pipe, a plastic pipe, etc., or a heating wire, a carbon heating element, etc., and melts snow using this heat. be. That is, the heat from the snow melting vibrator 5 is conducted through the paving stone blocks 3 and melts the snow on the paving stone blocks 3. In addition, the snowmelt water on the paving stone block 3 is
Since water permeates through the sand cushion layer 2 into the roadbed 1 and the roadbed, the surface of the paving stone blocks 3, that is, the road surface, will not become soaked with water. In addition, when the snow melting vibrator 5 is damaged, the damaged snow melting vibrator 5 and the paving blocks 3 in the vicinity can be removed, repaired, and replaced, making it possible to easily maintain the snow melting pavement structure. Become.

What has been described above is only one embodiment of the snow melting pavement structure according to the present invention, and FIGS. 3(a) to (k) and 4(a) to (j
It is also possible to use the paving stone block 3 shown in ) or form it as shown in FIG. That is, Fig. 3(a)~
(g) is a modification of the groove 4, and it is also possible to form the groove 4 as shown by hatching in figures (a) to (j), or as shown in a perspective view in figure (k). be.

In addition, Fig. 4(a) to 0) shows the external shape of the paving stone block 3,
This is the so-called deformation of the road surface. In addition, when using the pavement blocks 3 of multiple shapes, it is also possible to use ones of circular shape, hexagonal shape, etc. Furthermore, as shown in FIG.
It is also possible to have a structure in which it is close to or in close contact with the paving stone blocks 3.

Furthermore, at the position indicated by the dotted line or -dotted chain line in Fig. 5,
Perforated heat shield sheet (aluminum foil sheet, lead foil sheet, etc.) 7
It is also possible to prevent the heat from the snow melting vibrator 5 from dissipating to the roadbed 1 side.

〔Effect of the invention〕

As described above, according to the snow-melting pavement structure according to the present invention, the snow-melting water quickly permeates into the roadbed and the roadbed, so that the road surface is not soaked with water. Further, since the paving blocks are provided with grooves, the snow melting pipe can be easily installed, and the snow melting pipe can be repaired, replaced, and the piping can be easily changed. It has the following effects and characteristics.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a typical example of the snow-melting pavement structure according to the present invention, FIG. 2 is a perspective view showing an example of a paving stone block that is a component of the snow-melting pavement structure, and FIG. 3(a) ~(2)
, FIGS. 4(a) to 4(j) are explanatory diagrams showing modified examples of the paving stone blocks, and FIG. 5 is an explanatory diagram illustrating other embodiments. 2...Sand cushion layer, 3...Paving stone block,
4...Groove, 5...Snow melting pipe. Diagram + 2...Sand bush run layer 3...Paving block 4...Groove 5...Snow melting pipe diagram ()+1 (C)

Claims (1)

[Claims] (1) A structure in which a sand cushion layer is laid on the roadbed, and paving blocks are laid on the sand cushion layer,
A snow melting pavement structure characterized in that a groove is provided on the back surface of the paving stone block, and a snow melting pipe is disposed between the groove of the sand cushion layer and the paving stone block.