JP2006183363A - Side ditch block for draining pavement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a side ditch block for a draining pavement for efficiently performing pavement work for making a water permeable surface layer, in the side ditch block used for the draining pavement forming the water permeable surface layer. <P>SOLUTION: A water introducing groove is horizontally arranged over the total length in the longitudinal direction on an outside surface of the side ditch block for forming a drainage channel over the total length. An opening part of the water introducing groove is formed narrower than a diameter of a crushed stone used for the surface layer, and the opening part is widely formed. A drain hole communicating with the drainage channel in the side ditch block, is formed in a proper place of the water introducing groove. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a gutter block used for a drainage paved road in which a water-impermeable base layer and a water-permeable surface layer are formed on a road bed.

  Recently, roads using a drainage pavement method in which rainwater that has fallen on a road surface penetrates into a water-permeable surface layer and flows into a lateral groove have been widely constructed. For such a paved road, as shown in FIG. 5 of Utility Model Registration No. 3005384, a water guide groove having a triangular section with a wide opening is formed on the outer surface of the side groove block over the entire length in the longitudinal direction. A method has also been developed in which rainwater that has permeated into the surface layer is allowed to flow into the water ditches, and further flows into the drainage channel from the drainage holes that lead to the drainage channel in the side channel block.

  In this method, there is a drawback that crushed stone, which is a material of the surface layer, is inserted into a water guide groove with a wide opening during paving work, and rainwater that has permeated the surface layer cannot be drained.

  Further, as shown in FIG. 1 of Japanese Patent No. 2888264, a water guide groove is formed on the outer surface of the side groove block over the entire length in the longitudinal direction, and a water permeable pipe is fitted into the water guide groove, so that rainwater from the surface layer is formed. Has been developed that allows water to enter the water-permeable pipe and flow into the drainage channel in the side groove block from the drainage hole provided in the water conduit.

In the case of this method, the use of the water permeable pipe prevents the water guide groove from being cut off by crushed stones, but the water permeable pipe is expensive, so there is a drawback that the construction cost increases. In addition, dust and the like flowing into the surface layer along with rainwater may adhere to the surface of the water-permeable pipe, causing clogging, and the drainage effect may be impaired.
Utility Model Registration No. 3005384 Japanese Patent No. 2888264

  The present invention is a gutter block used for a drainage pavement road having a water permeable surface layer, and a gutter block for a drainage pavement road that can efficiently perform pavement work for making a water permeable surface layer. It is intended to provide.

  The gutter block used for the drainage paved road according to the present invention is provided with a water guide groove extending over the entire length in the longitudinal direction on the outer surface of the side groove block in which the drainage channel is formed over the entire inner length. The opening is narrower than the diameter of the crushed stone used for the surface layer, the inside is formed widely, and the drainage hole leading to the drainage channel is formed at an appropriate position of the water conduit.

  By laying the gutter block on the road and laminating a mixture of coal tar and crushed stone on the water-impermeable underlayer formed on the road floor, a water-permeable surface layer whose end face comes into contact with the water conveyance groove is formed. , Constitute drainage paved road. Rainwater that falls on the paved road penetrates into the surface layer, flows into the diversion channel, and flows into the drainage channel from the drainage hole.

  In the drainage pavement method, the crushed stone used for the water-permeable surface layer is generally 13 mm in diameter. Therefore, by making the opening of the water guide groove narrower than the crushed stone, Intrusion into the water guide groove is prevented. Therefore, the surface pavement work becomes easy. In addition, by enlarging the inside of the water guide groove, a large amount of rainwater can be allowed to flow through the drainage channel.

  The gutter block used in the drainage paved road according to the present invention has an opening of the water guide groove that is narrower than the diameter of the crushed stone for forming the surface layer, and therefore prevents the crushed stone from entering the water guide groove during pavement work. Can do. As a result, efficient paving work can be performed.

  Moreover, since it is not necessary to use an expensive water-permeable pipe, the construction cost of the drainage paved road can be greatly reduced, and clogging is not caused by dust or the like. Further, since the inside of the water guide groove can be enlarged, it is possible to further improve the penetration of rainwater on the road surface.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 is a perspective view of a side groove block according to the present invention, FIG. 2 is a cross-sectional view showing a construction state of the upper-side groove block, and FIG. 3 is a cross-sectional view showing a main part in the construction state.

  Reference numeral 1 denotes a side groove block, which is provided with a drainage channel 3 over its entire length, and has a slit 2 for inflow of rainwater and the like on its upper surface. On the outer surface of the side groove block 1, a water guide groove 4 is provided horizontally over the entire length in the longitudinal direction. In this water guide groove 4, the gap of the opening 4 a is set to about 5 mm narrower than the diameter of the crushed stone described later, and the inside 4 b is formed with a diameter wider than the opening 4 a. Further, a drainage hole 5 connecting the water guide groove 4 and the drainage channel 3 is formed on the end face of the side groove block 1. The size of the interior 4b of the water guide groove 4 can be increased to such an extent that the strength of the side groove block 1 is not impaired, and the amount of water inflow can be increased.

  Reference sign A is a drainage paved road, and the paved road A comprises a water-impermeable underlayer 7 formed by high-density asphalt pavement formed on the road floor 6 and a water-permeable surface layer 8 formed thereon. The surface layer 8 joins crushed stones 8a having a diameter of about 13 mm with coal tar or the like, and forms continuous voids 8b between the crushed stones 8a. The lower part of the side end surface of the surface layer 8 is in contact with the water guide groove 4 of the side groove block 1.

  The rainwater that has fallen on the paved road A configured in this way penetrates into the gap 8 a in the surface layer 8, then flows into the water guide groove 4 of the side groove block 1, and flows into the drainage channel 2 from the drainage hole 5. Discharged.

  Since the crushed stone 8a does not fit into the water guide groove 4 at the time of paving, the opening 4a of the water guide groove 4 facilitates paving work. Further, as shown in FIG. 3, by widening the inside 4a of the water guide groove 4, rainwater is quickly drained, and the accumulation of water on the road surface is prevented. Moreover, as shown by a chain line in FIG. 3, when the bottom surface T of the interior 4a has a cross-sectional shape with a small radius of curvature, dust or the like flowing into the bottom portion flows into the drainage channel together with rainwater without staying. Moreover, by making the shape of the inside 4a vertically long, the water in the inside 4a creates a water guiding gradient and is smoothly drained into the drainage channel.

It is a perspective view of the gutter block for drainage paved roads concerning the present invention. It is sectional drawing which shows embodiment of the same upper side groove block. It is sectional drawing which shows the principal part in embodiment same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side groove block 2 Slit 3 Drainage channel 4 Water conveyance groove 4a Opening part 4b Inner part 5 Drainage hole A Drainage pavement road 6 Road floor 7 Impervious base layer 8 Surface layer 8a Crushed stone 8b Air gap T Bottom

Claims (1)

On the outer surface of the side groove block that has formed a drainage channel over the entire inner length, a water guide groove is horizontally provided over the entire length in the longitudinal direction, and the opening of the water guide groove is narrower than the diameter of the crushed stone used for the surface layer, A drainage pavement road side groove block characterized in that a drainage hole that leads to a drainage channel is formed at an appropriate position of the water conduit.

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