JP2850695B2 - Road snow removal structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow removal structure for roads,
In particular, the present invention relates to a road snow removal structure for removing snow falling on a road by melting snow.

[0002]

2. Description of the Related Art Generally, in heavy snowfall areas such as snowy countries where there is a large amount of snow in winter, roads are periodically snow-removed to prevent traffic obstacles. Examples of the snow removal method include a method of physically removing snow by hand or a snow plow, a method of spraying hot water or the like on a road to remove snow melting, and a method of heating the road itself by heating means to remove the surface of the road. At a certain temperature or higher,
A method of sequentially removing snow that comes in contact with the road surface is used.

[0003] Among the above methods for removing snow, the water spray method is not suitable as a snow removing means for a sidewalk because the road surface is flooded, and there is a fear that ice burns due to water sprayed may occur. is there.

[0004] On the other hand, as a method for heating a road, there is a method in which a radiating pipe is buried at a constant interval on a road surface and hot water is passed through the inside thereof, as shown in Japanese Patent Application Laid-Open No. 4-366204, for example. This method has the advantage of being able to use many types of heat sources, such as groundwater, hot spring wastewater, heat from heat pumps, etc., and has the advantage that it can be used repeatedly by recovering the water after heat exchange. Moreover, it is suitable as a snow removing means for sidewalks with a small road load.

[0005]

However, in the above-described method using a heat radiating pipe, since the material of the road surface generally has a high heat insulating property, the intensity of heat distribution is generated on the road surface depending on the interval between the heat radiating pipes. Even if the snow melts on the surface close to the surface, the distant part will remain as it is, so it is difficult to remove the snow evenly. There was a problem that the pitch had to be reduced, which required much labor and cost in construction and management and operation.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a snow removing structure for a road on which snow falling on the road can be easily and uniformly removed. .

[0007]

In order to achieve the above-mentioned object, a snow removing structure for a road according to the present invention comprises a waterproofed base roadbed, a drainage material laid on the surface of the foundation roadbed, and a drainage material for the drainage material. A road surface material such as asphalt or concrete laid on the upper surface, and disposed between the waterproofed base roadbed and the road surface material, and a number of nozzle holes formed with openings facing the drainage material. A hot water supply pipe that extends while being disposed and supplies hot water to the drainage material, and a hot water recovery unit that communicates with the drainage material and recovers hot water that has passed through the drainage material. It is.

[0008] Here, the drainage material laid on the surface of the waterproofed base roadbed has a high water permeability and a road surface material above it, snow covered with snow, and people and vehicles passing through the road. For example, 10-20 ton / m capable of withstanding weight
^It refers to a mat-like member having a compressive strength of about ² , and as an example, a material shown as a core material in Japanese Patent Application No. 4-5241 filed by the present applicant can be used. More specifically, for example, a mat-shaped member in which a yarn member made of a synthetic resin such as polyethylene yarn is entangled in a so-called instant noodle-like dry noodle shape or a stitch shape can be used. Nylon Co., Ltd.) can be used.

[0009]

According to the snow removing structure for a road of the present invention having the above-described structure, the hot water spouted from the nozzle hole of the hot water supply pipe is impregnated inside the drainage material and spreads uniformly toward the hot water recovery means. While flowing, the road surface material is uniformly heated during this time. Therefore, snow falling on the road is uniformly and uniformly removed by the heated road surface material.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. Although the present embodiment describes a case where the present invention is used as a snow removal structure for a sidewalk, the present invention is not limited to such a case and can be easily applied to a road or other roads.

FIGS. 1 and 2 show a sidewalk provided with a snow removing structure according to this embodiment. The sidewalk 1 is higher than the side by an L-shaped side groove block 2 which defines a sidewalk on both sides of the sidewalk. A sidewalk 3 is provided.

The sidewalk 3 mainly includes a foundation roadbed 4, a drainage material 6 laid all over the foundation roadbed 4 via a waterproof sheet 5 laid on the upper surface of the foundation roadbed 4, and a waterproof material on the upper surface of the drainage material 6. It comprises a surface material 7 such as a sidewalk block made of concrete laid through the sheet 5.

Here, the drainage material 6 has a high water permeability and can withstand the weight of the surface material 7 above it, snow covered snow, people passing through the road, etc., for example, about 10 to ²⁰ ton / m ^2. A mat-shaped member in which a yarn member made of a synthetic resin such as polyethylene yarn having a compressive strength of, for example, a so-called instant noodle is entangled in a dry noodle shape or a stitch shape. Use etc.

A hot water supply pipe 8 extending along the longitudinal direction of the side wall block 2 of the foundation roadbed 4 is fixed to the side of the base roadbed 4 which is in contact with the back surface. The hot water supply pipe 8 is connected to a hot water supply source utilizing waste heat from heating of a large-scale store or building adjacent to the corresponding sidewalk 3.
The supply pipe 8 has a large number of nozzle holes 8a formed at appropriate intervals in the longitudinal direction thereof, and each of the nozzle holes 8a faces the lower surface of the drainage material 6, thereby supplying hot water to the drainage material 6.
It can be supplied to the inside.

On the other hand, a hot water recovery culvert 9 is buried on the side of the foundation roadbed 4 opposite to the side groove block 2 in parallel with the hot water supply pipe 8, and the upper surface opening thereof is the other end of the drainage material 6 in the width direction. It faces the lower surface and communicates with the drainage material 6. The collecting culvert 9 communicates with a collecting tank (not shown).

Further, on the lower part of the gutter block 2, the road 1
The drainage culvert 10 on the side is disposed, and water flowing along the slope of the roadway 1 toward the side gutter block 2 flows into the culvert 10 through a water collecting opening provided at an appropriate position of the gutter block 2.

In the above configuration, when hot water is supplied to the hot water supply pipe 8, this hot water is jetted out through the nozzle holes 8a to the drainage material 6 side as shown by arrows, and is uniformly impregnated in the drainage material 6. Spread. Therefore, the heat generated by the hot water is uniformly transferred to the surface layer 7 through the drainage member 6 to heat the surface layer 7.

Since the temperature of the surface material 7 is kept uniformly higher than the surrounding temperature, if snow falls on the sidewalk 3 in this state, the snow in contact with the surface material 7 Are sequentially melted and discharged from the sidewalk 3 side to the side groove block 2 side, so that the road surface is always exposed. Even if there is already snow on the sidewalk 3, such snow is melted sequentially from the contact surface side with the surface material 7 and is discharged to the gutter block 2 side. The road surface will be exposed, and traffic obstructions due to snow cover will be eliminated.

Since the back surface of the gutter block 2 is in contact with the hot water supply pipe 8, this portion is also heated, and it is possible to prevent freezing of this portion and poor drainage due to accumulation of snow.

The hot water passing through the drainage material 6 is supplied to each culvert 9
Through the storage tank, and is circulated and used as a heat medium utilizing waste heat from heating.

The heat source can be variously selected according to the actual conditions of the region, for example, in addition to the heating waste heat, the heat can be used in a hot spring area.

In this embodiment, the hot water supply pipe 8
A case has been described in which the hot water recovery culvert 9 is disposed in parallel with the longitudinal direction of the sidewalk 3 and the hot water flows down in the transverse direction of the sidewalk 3. In addition, for example, the hot water supply pipe 8 and the hot water recovery culvert 9 are described. 9, a plurality of branch pipes can be arranged at predetermined intervals in the transverse direction of the sidewalk, and hot water can flow down in the longitudinal direction of the sidewalk.

[0023]

As described above in detail, the road snow removing structure according to the present invention comprises a waterproofed base roadbed, a drainage material laid on the surface of the base roadbed, a base roadbed and a road surface material. Since hot water supply pipes and hot water recovery means are provided between them, hot water is blown out from the nozzle holes of the hot water supply pipes, and the hot water flows down uniformly inside the drainage material to make the road surface material uniform. , The snow falling on the road can be easily and uniformly removed.

[Brief description of the drawings]

FIG. 1 is a plan view of a sidewalk provided with a snow removing structure according to the present invention.

FIG. 2 is an explanatory sectional view taken along line AA of FIG. 1;

[Explanation of symbols]

 2 Gutter block (walkway boundary line) 3 Sidewalk 4 Foundation roadbed 5 Waterproof sheet 6 Drainage material 7 Surface material 8 Hot water supply pipe 8a Nozzle hole 9 Hot water recovery culvert

Continued on the front page (72) Inventor Takanari Haga 4-640 Shimoseito, Kiyose-shi, Tokyo Inside Obayashi Corporation Technical Research Institute (56) References JP-A-61-191755 (JP, A) (58) Fields investigated ( Int.Cl. ⁶ , DB name) E01C 11/26 E01H 5/10

Claims (1)

(57) [Claims] 1. A waterproofed base roadbed, a drainage material laid on a surface of the foundation roadbed, a road surface material such as asphalt or concrete laid on an upper surface of the drainage material, and A hot water supply pipe that is disposed between the base roadbed and the road surface material, extends and arranges a large number of nozzle holes that are formed so as to face the drain material, and supplies hot water to the drain material; A snow removing structure for a road, comprising: hot water recovery means communicating with the drainage material and collecting hot water passing through the drainage material.