JP2011174292A - U-shaped side ditch block equipped with overflow pipe, and roadside ditch using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a U-shaped side ditch block 10 which is equipped with an overflow pipe and prevents garbage, sediment, etc, floating on a surface of rainwater flowing through a side ditch from flowing into the overflow pipe. <P>SOLUTION: First and second shuttering boards 30 and 40 are mounted to the side of a lateral wall 11 fitted with the overflow pipe 27 of the U-shaped side ditch block 10. The first shuttering board 30 has an upper end 31 positioned above the overflow pipe 27, and the second shuttering board 40 has a gap 42 formed between its lower end 41 and a bottom plate 13, and has an upper end positioned above the upper end 31 of the first shuttering board 30. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a U-shaped side groove block having an overflow pipe and a road side groove using the same.

  In order to prevent rainwater from accumulating on the roadway and sidewalk when it rains, a road gutter having a large number of U-shaped gutter blocks is installed along the road. In addition, a rainwater infiltration tank in which a part of the rainwater flowing into the road side ditch is installed in the ground for the purpose of preventing the rainwater flowing into the road ditch from overflowing the road ditch and flooding the road. And temporarily flowing into a rainwater storage tank.

  In order to allow a part of rainwater flowing through the road side groove to flow into a rainwater infiltration tank or the like, usually, a U-shaped side groove block provided with an overflow pipe is arranged in a part of many U-shaped side groove blocks arranged along the road. One example is described in Patent Document 1. The U-shaped side groove block provided with the overflow pipe has a U-shaped cross section, and a drain hole is formed in the upper end portion of one side wall of the side groove block, and the intake port of the overflow pipe is connected thereto. When the amount of rainwater is low, rainwater flows along the bottom of the U-shaped gutter block, and when it increases, a part of the rainwater penetrates into the ground through the overflow pipe from the drain hole formed in the upper end of the side wall. It flows into the tank.

  In addition, when installing a storage permeation tank in the ground, it is also known that water storage space forming members made of a resin material are stacked in multiple stages and the periphery thereof is covered with a water permeable sheet to form a storage tank or a permeation tank (for example, Patent Document 2).

JP 2007-169902 A JP 2008-8075 A

  The U-shaped side groove block provided with the overflow pipe described in Patent Document 1 is expected to be able to appropriately cope with a temporary increase in rainwater. However, the drain hole is just provided in the upper part of the side wall, and dust or earth and sand floating on the water surface easily flows into the overflow pipe, causing the overflow pipe to become clogged, or to remove the suspended matter through the overflow pipe. There is a risk that it will flow into a seepage tank.

  The present invention has been made in view of the above circumstances, and in a U-shaped side gutter block provided with an overflow pipe, it reliably prevents dust, dirt and the like floating on the rainwater surface flowing through the gutter from flowing into the overflow pipe. It is an object of the present invention to disclose a gutter block that can be used. It is another object of the present invention to disclose a road gutter having a U-shaped gutter block with an overflow pipe.

  The U-shaped side groove block provided with the overflow pipe according to the present invention has a drainage hole formed on one side wall, the water intake of the overflow pipe is connected to the drainage hole, and the drainage hole is formed. A first dam plate having both ends fixed at appropriate positions on the upstream side and the downstream side of the drainage hole is attached to one side wall, and the side opposite to the one side wall side of the first dam plate A second dam plate having both ends fixed to the one side wall is attached at a distance from the first dam plate, and the lower end of the first dam plate is located on the bottom surface of the U-shaped side groove block. The upper end of the second dam plate has reached a position higher than the drain hole, and the lower end of the second dam plate does not reach the bottom surface of the U-shaped side groove block, and the upper end is higher than the upper end of the first dam plate. It is characterized by being located at the top.

  In a preferred embodiment, the U-shaped side groove block provided with the overflow pipe according to the present invention has a section in which the one side wall bulges in a part, and the drainage in the section bulged in the side. Holes and first and second dams are formed.

  The road side groove according to the present invention is a road side groove in which a plurality of U-shaped side groove blocks are continuously arranged, and a U-shape having one or a plurality of overflow pipes according to the present invention as some U-shaped side groove blocks. A side groove block is arranged.

  In the U-shaped side gutter block and road side gutter provided with the overflow pipe according to the present invention, when the amount of rainwater is small and the water level does not reach the upper end level of the first dam plate, It flows in the block as it is downstream.

  When the amount of rainwater increases and the water surface exceeds the level at the upper end of the first dam plate, the excess rainwater, that is, overflowed rainwater flows into the space between the first dam plate and the side wall. The inflowing rainwater enters the overflow pipe through the drainage hole formed in the side wall, and flows into, for example, a rainwater infiltration tank, a rainwater storage tank or an infiltration tank.

  The U-shaped side groove block provided with the overflow pipe of the present invention has a second dam plate on the inner side of the first dam plate, that is, on the side opposite to the side wall, and the lower end of the dam plate and the U A gap is formed between the bottom surface of the letter-shaped side groove block. Therefore, rainwater flowing into the space between the first dam plate and the side wall always passes through the gap located near the bottom surface of the U-shaped side groove block. As a result, the dust and sand floating on the surface of the rainwater are blocked by the second dam plate, and the rainwater flowing into the space between the first dam plate and the side wall is clean rainwater that does not contain these floating materials. It becomes.

  When using the U-shaped side groove block provided with the overflow pipe in the form in which the drain hole and the first second dam plate are formed in the above-mentioned side bulging section, the road extends over the entire length of the road side groove. The same water channel cross section as other U-shaped side groove blocks forming the side grooves can be secured, and the flow path resistance of the road side grooves does not increase at the location of the U-shaped side groove block provided with the overflow pipe. It is possible to reliably avoid the overflow of rainwater from the letter-shaped side groove block.

  According to the present invention, it is possible to obtain a U-shaped side groove block including an overflow pipe that can reliably prevent dust, earth and sand floating on the rainwater surface flowing through the side groove from flowing into the overflow pipe. Further, by providing the U-shaped side groove block with the overflow pipe according to the present invention in a part of the road side groove, it is possible to reliably prevent floating substances from entering the permeation tank that stores the overflowed rainwater.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view for explaining a road side groove partially including a U-shaped side groove block provided with an overflow pipe according to the present invention. 2A is a plan view of a U-shaped side groove block provided with an overflow pipe, and FIG. 2B is a cross-sectional view taken along line bb of FIG. 2A. The perspective view shown with a U-shaped side groove block-section provided with an overflow pipe.

Hereinafter, the present invention will be described based on an embodiment with reference to the drawings.
In FIG. 1, A indicates a road side ditch, and rainwater overflowing the road side ditch A passes through an inflow pipe D to a storage infiltration tank B buried in the ground or a management dredging tank or a management dredging tank C. Inflow. The water storage infiltration tank B may be a conventionally used water storage infiltration tank as described in Patent Document 1 or 2, and the management tank may be a conventionally known management tank. Therefore, description of the water storage tank B and the management basket C is omitted.

  The road side groove A is constituted by connecting an appropriate number of the conventionally known U-shaped side groove block 1 and the U-shaped side groove block 10 having an overflow pipe according to the present invention in the route direction. In the figure, only a part of such a road side groove A is shown. Actually, a certain interval is provided in a long road side groove formed by connecting a large number of U-shaped side groove blocks 1. A suitable number of U-shaped side groove blocks 10 each having an overflow pipe according to the present invention are arranged.

  An example of a U-shaped side groove block 10 having an overflow pipe according to the present invention will be described with reference to FIGS. The U-shaped side groove block 10 having an overflow pipe has left and right side walls 11 and 12 and a bottom plate 13, and the upper ends of the side walls 11 and 12 are formed as horizontal flanges 14 and 15. One side wall 11 has a section 20 that bulges further to the side than the side wall 11.

  The bulged section 20 includes a first vertical wall 21 extending outward from the side wall 11 and a second vertical wall 22 extending outward from the side wall 11 at a position away from the first vertical wall 21 by a required distance. A third side wall 23 connecting the tip of the first vertical wall 21 and the tip of the second vertical wall 22, the first vertical wall 21, the second vertical wall 22, and the third side wall 23. And a bottom plate extension 24 that closes the lower end portion. That is, as shown in the figure, the bulged section 20 has a shape in which the water channel side and the upper surface side of the U-shaped side groove block 10 are open and the bottom surface and other side surfaces are closed. In the illustrated example, the second vertical wall 21, the second vertical wall 22, and the third side wall 23 are connected to the upper end of the horizontal flange 14. The flange 25 is formed.

  In addition, in the figure, although the division 20 swelled laterally in a rectangular parallelepiped shape as a whole is drawn, the water channel side and the upper surface side of the U-shaped side groove block 10 are open, and the bottom surface and other side surfaces are closed. As a result, the overall shape and size are arbitrary.

  In the U-shaped side groove block 10, a drain hole 26 is formed at an appropriate position of the third side wall 23, in the vicinity of the lower end here, and an intake port of an overflow pipe 27 is connected to the drain hole 26. . The drain hole 26 is preferably a horizontally long one so that a required amount of drainage can be secured.

  The U-shaped side groove block 10 further has a first dam plate 30 and a second dam plate 40 with one end fixed to the first vertical wall 21 and the other end fixed to the second vertical wall 22. Is formed. As shown in the drawing, the lower end portion of the first dam plate 30 reaches the bottom plate extension portion 24, and the upper end portion 31 thereof is lower than the upper end position of the bulging section 20, and the drainage described above. The position reaches a position higher than the hole 26.

  The second dam plate 40 is attached to the first dam plate 30 on the side opposite to the third side wall 23 side at a predetermined distance from the first dam plate 30, and has an upper end portion. Has reached the upper end position of the bulged section 20. The lower end 41 does not reach the bottom plate extension 24, and a gap 42 having a predetermined height is formed between the second dam plate 40 and the bottom plate extension 24.

  In the road side groove A partially including the U-shaped side groove block 10 having the overflow pipe, when the amount of rainwater is small and the water surface level does not reach the level of the upper end 31 of the first dam plate 30 The rainwater flowing from the upstream U-shaped side groove block 1 flows into the U-shaped side groove block 1 as it is downstream in the U-shaped side groove block 10. In the meantime, the rainwater has entered the region between the first dam plate 30 and the second dam plate 40 through the gap 42 between the second dam plate 40 and the bottom plate extension 24. .

  When the amount of rainwater increases, the level of the water surface reaches the upper end 31 of the first dam plate 30. When the level of the water becomes higher than that, the excess rainwater, that is, the overflowing rainwater, climbs over the upper end 31 of the first dam plate 30, and the first dam plate 30, the third side wall 23 and The rainwater that has flowed into the space between them enters the overflow pipe 27 through the drain hole 26 formed in the third side wall. And as mentioned above, it flows in into the rainwater penetration tank B, the management tank C, etc. from there. This prevents rainwater from overflowing from the road ditch A and flowing out onto the road surface.

  As described above, the U-shaped side groove block 10 having the overflow pipe of the present invention has the second dam plate 40 inside the first dam plate 30, that is, on the main water channel side of the U-shaped side groove block 10, A gap 42 is formed between the second dam plate 40 and the bottom plate 13 of the U-shaped side groove block 10. Accordingly, rainwater flowing into the space between the first dam plate 30 and the side wall (third side wall 23) passes through the gap 42, and dust and earth and sand floating on the rainwater surface are second dam plate. 40 is dammed up. As a result, rainwater that flows into the space between the first dam plate 30 and the side wall (third side wall 23) becomes clean rainwater that does not contain those floating substances, and therefore, floating substances are generated in the overflow pipe 27. It can be surely prevented from entering.

  In the above example, the U-shaped side groove block 10 provided with the overflow pipe integrally has the section 20 that bulges sideways. A drain hole 26, a first dam plate 30, and a second dam plate 40 may be formed on one side wall of the known U-shaped side groove block 1. In that case, the 1st dam plate 30 and the 2nd dam plate 40 become the shape bulged in the water channel of the U-shaped side groove block 1, for example, cylindrical shape, elliptic cylinder shape, prismatic shape, etc.

  The U-shaped side groove block 10 provided with the overflow pipe according to the present invention may be made of concrete like the conventional U-shaped side groove block 1. However, it is desirable to make it with a stainless steel material or a resin material for ease of manufacture. In that case, the above-described bulged section 20 and the remaining portion may be separately made and integrated by welding or the like.

  Further, in order to further prevent solids such as dust from entering the overflow pipe 27, a screen for preventing dust is attached to the passage between the first dam plate 30 and the second dam plate 40. It may be.

  Furthermore, in order to prevent solid matter such as dust from entering the U-shaped side groove block 1, the U-shaped side groove block 10 provided with the overflow pipe according to the present invention, and the section 20 bulging further side than the side wall thereof. Moreover, you may make it attach the cover which covers the open part of each upper surface side.

A ... Road gutter,
B ... Water storage tank,
C ... Management
D: Inflow pipe,
1 ... U-shaped side groove block,
10: U-shaped side groove block with overflow pipe according to the present invention,
11, 12 ... left and right side walls,
13 ... bottom plate,
20: a section bulging further to the side than the side wall,
21 ... first vertical wall,
22 ... the second vertical wall,
23 ... third side wall,
24 ... bottom plate extension,
26 ... Drain hole,
27 ... overflow pipe,
30 ... first dam,
40 ... second dam,
31 ... The upper end of the first dam plate,
41 ... the lower end of the second dam,
42: A gap between the second dam plate and the bottom plate (bottom plate extension).

Claims (3)

A U-shaped side groove block with an overflow pipe,
A drain hole is formed on one side wall, and the water intake of the overflow pipe is connected to the drain hole,
The one side wall in which the drainage hole is formed is attached with a first dam plate having both ends fixed at appropriate positions on the upstream side and the downstream side of the drainage hole,
A second dam plate having both ends fixed to the one side wall is attached to the side opposite to the one side wall side of the first dam plate at a distance from the first dam plate,
The lower end of the first dam plate reaches the bottom surface of the U-shaped side groove block, and the upper end reaches a position higher than the drain hole,
The lower end of the second dam plate does not reach the bottom surface of the U-shaped side groove block, and the upper end is positioned higher than the upper end of the first dam plate.
A U-shaped side groove block provided with an overflow pipe characterized by the above.   It is a U-shaped side groove block provided with the overflow pipe according to claim 1, wherein the one side wall has a part that bulges laterally, and the bulge that bulges to the side A U-shaped side groove block provided with an overflow pipe, characterized in that a drain hole and first and second dam plates are formed.   A road side groove in which a plurality of U-shaped side groove blocks are continuously arranged, and a U-shaped side groove block having one or a plurality of overflow pipes according to claim 1 or 2 as a part of U-shaped side groove blocks. Road side ditch characterized by the placement of.

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