JP2002212909A - Boundary block between sidewalk and roadway for water permeable pavement and drainage structure of the water permeable pavement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traffic boundary block facilitating the execution and having a drainage structure causing no flowing water or collapse of a surface layer on the road side in a water permeable pavement having a traffic boundary. SOLUTION: A longitudinal overall length drain 4 of the block is provided on the side of a roadway side and/or a sidewalk side of the block 1, and the drain is so formed that a cylinder material 5 making one side as a water permeable surface is embedded in the block 1 by exposing one side. For the traffic boundary block having the apron, the drain 4 can be also provided to the upper surface of the apron 3. The drain 4 of the block having the constitution is located on a boundary between a roadway and/or a permeable layer of a sidewalk and a non-permeable layer to set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sidewalk boundary block installed in a longitudinal direction at a boundary between a roadway and a sidewalk, and more particularly to a roadway and / or a sidewalk when the sidewalk is formed of permeable pavement. The present invention relates to a sidewalk boundary block used at the boundary between a road and a sidewalk, and a drainage structure constructed using the block.

[0002]

2. Description of the Related Art On a wide road in a downtown area or a suburb, a step or a ridge is provided between a sidewalk and a road to serve as a boundary of the sidewalk. Such steps or ridges are formed by lining up concrete blocks called trapezoidal or curb blocks having a low L-shaped cross section.

[0003] Recently, in order to prevent water from accumulating on the side surfaces of sidewalks and roads during rainfall, construction of permeable pavements on sidewalks and roads has been increasing. Permeable pavement means that asphalt is made of modified asphalt or high-viscosity modified asphalt, and an open-grain asphalt mixture having a porosity of about 15 to 25% is provided on the surface layer or on the surface layer and the base layer, and the layer beneath is not provided. The pavement is made of water-permeable pavement and has a function of allowing rainwater or the like during rainfall to flow down to a drainage structure on a roadside or a roadside.

As a drainage structure used for permeable pavement, a structure as shown in FIGS. 11 and 12 has been proposed in addition to a structure in which a U-shaped groove block is buried immediately below a pedestrian road boundary block. In the structure shown in FIG. 11, a base concrete 32 is cast at a boundary between a road A and a sidewalk B, a trapezoidal ridge block 21 is mounted thereon, and a concave groove 33 is provided on the side of the base concrete road. Then, a drainage structure 37 is formed by burying a crushed stone 35 and a permeable concrete pipe 36 after laying a waterproof sheet 34 on the drainage structure 37.
Of water-permeable head 38 made of open-grain asphalt mixture
And a surface layer 11 are formed. The rainwater 40 flows on the upper surface of the water-impermeable base layer 10 through the water-permeable surface layer 11, is collected in the water-permeable concrete pipe 36 via the water guide 38 and the crushed stone layer 35, and is discharged downstream.

The structure shown in FIG. 12 uses a boundary block 1 having an L-shaped cross section integrally having a ridge 2 and a roadside apron 3a, and a base concrete 3 provided along a roadway A.
The boundary block 1 is installed on the upper surface of the road block 2 and the upper surface of the impermeable base layer 10a of the road A is connected to the roadside apron 3 of the boundary block.
a at the same height as the upper surface of
a is provided so as not to cover the roadside apron 3a. The sidewalk B is formed of an impermeable road surface flush with the upper surface of the ridge 2 of the boundary block. The rainwater that has fallen on the roadway passes through the water-permeable surface layer 11a and the water-impermeable base layer 10a.
, Flows out onto the apron 3a, and is discharged downstream along the ridge. In the L-shaped boundary block, the apron is provided widely, and the sitting of the block is good and stable.

[0006]

The drainage structure shown in FIG.
There is a disadvantage that the structure is complicated and the construction takes a long time.
Further, the drainage structure in FIG. 12 has a drawback that drainage flows on the upper surface of the apron, cracks are easily formed between the stepped apron and the water-permeable surface layer, and the side edges of the road surface are easily collapsed.

SUMMARY OF THE INVENTION The present invention provides a drainage structure which is easy to construct in a permeable pavement having a pedestrian road boundary and does not cause running water or collapse of the surface layer on the roadside, and a pedestrian road boundary block suitable for constructing this drainage structure. The task is to provide.

[0008]

According to the first aspect of the present invention, there is provided a pedestrian-side boundary block for permeable pavement, which is provided on the side of the block 1 on the side of the road and / or on the side of the sidewalk. This drainage channel is provided with a block 1 by exposing one side surface of a cylindrical member 5 having a water-permeable surface 7 on one side surface.
It is formed by being buried in.

[0009] As the sidewalk boundary block, various cross-sectional shapes have been put to practical use, and blocks having different structures are used depending on whether the permeable pavement is to be applied to either or both of the sidewalk and the sidewalk. Is appropriate.

A pedestrian road boundary block for permeable pavement according to a second aspect of the present invention comprises a ridge 2 and an apron 3 projecting from a lower side surface of the ridge.
a, 3b are integrated with a walkway boundary block 1, and a drainage channel 4 is provided on the upper surface of the apron 3 along the entire length of the block in the longitudinal direction of the block.
Are formed by burying the apron 3 with the upper surface exposed.

In addition, the pedestrian road boundary block 1 for permeable pavement according to claim 3 has a fitting portion 23 on which a ridge block 21 forming a boundary of a pedestrian road is mounted on an upper surface, and the upper surface except for the fitting portion and / or Alternatively, a drainage channel 4 in the longitudinal direction of the block is provided on the side surface, and this drainage channel is formed by burying a cylindrical member 5 having one surface as a water permeable surface 7 with the one surface exposed.

The drainage channel 4 is more preferably provided on the side surface of the block. The position of the drainage channel 4 is the position of the boundary between the water-permeable surface layer 11 and the water-impermeable base layer 10 of the roadway or sidewalk. When the drainage channel 4 is provided on the side surface of the block, the water permeable surface 7 may be provided only on the upper region of one side surface of the cylindrical body 5.

[0013] By using the pedestrian sidewalk boundary block for permeable pavement having the above structure, a drainage structure that does not generate running water on the road surface only by installing the block between the pedestrian and the sidewalk of a permeable pavement or a road having a sidewalk is provided. Roads can be built.

The drainage structure for a permeable pavement according to claim 4 is
A number of the permeable pavement sidewalk boundary blocks having the above-mentioned structure connect the drainage channel 4 with the drainage channel of an adjacent block, and connect the drainage channel to the permeable layer 11 of the roadway and / or sidewalk.
It is characterized in that it is located between the road and the sidewalk so as to be located at the boundary between the a and 11b and the impermeable layers 10a and 10b.

[0015]

1 and 2 show a first embodiment of the present invention. Pedestrian road boundary block 1 of this embodiment
Is a ridge 2 and a roadside apron 3a projecting to one side of the lower part of the ridge.
And a low L-shaped cross-sectional shape integrally provided with On the upper surface of the apron 3a, a water gradient of 2 to 6 degrees is provided in a direction in which the ridge 2 side becomes lower. On the side of the apron 3a,
A drain 4 in the longitudinal direction of the block is provided. This drainage channel is formed by embedding a cylindrical body 5 having various shapes shown in FIG. 3 on the side surface of the block.

The cylindrical body 5 is made of metal or synthetic resin, and has a plurality of small water intake holes 6 connected to the inside of the cylindrical body on its outer side surface to form a water permeable surface 7. There are no small holes on the surface embedded in the block. As shown in FIG. 3, the water permeable surface 7 can be provided only in the upper region on the outer side surface of the cylindrical body.

FIG. 3 shows an example of a cylindrical body.
(a) is a rectangular cross section, and (b) is a trapezoidal cross section having a wide outer side surface, and has a shape with a wide water intake from a pavement surface. FIG. 4C shows an example of a C-shaped cross section, FIG. 5D shows an example of a U-shaped cross section, and FIG. 5E shows a U-shaped cross section in which a small hole 6 is provided only in the upper region on the outer side surface. It is an example. FIG. 5F shows an example in which a water-permeable surface is formed by attaching a water-permeable mat 9 made of synthetic resin fiber to the side surface of a metal cylinder having a slit 8 at the center of the outer side surface and holes 6 above and below the slit. These cylinders are embedded by fixing them to a mold and forming a block, or by embedding a cylinder in a groove after forming a groove in the block.

FIG. 2 is a view showing a construction state of the pedestrian block shown in FIG. Crushed stone is laid on the roadbed to form the foundation 14, on which the base concrete 32 is poured.
The sidewalk roadway boundary blocks 1 are installed on the base concrete side by side in the longitudinal direction. The drainage channel 4 of the block is connected to the drainage channel of the adjacent block in abutting condition, and a long drainage channel is formed along the road side. In this state, the base layer 10a is formed such that the exposed surface of the cylindrical body 5 on the side surface of the apron, preferably the lower half side of the exposed surface, is positioned at the upper surface height of the impermeable base layer of the road A. Permeable surface layer 11
a is formed such that its upper surface coincides with the upper surface of the apron.

The rainwater that has fallen on the roadway has a permeable surface layer 11a.
Flows through the surface of the water-impermeable base layer 10a to the road side, is guided to the drainage channel 4 from the small holes 6 on the exposed surface of the cylindrical body, and flows downstream along the gradient of the drainage channel. A basin block is arranged for each predetermined number of the boundary blocks arranged side by side, and a flow path that flows from the water channel to the basin block is provided so that rainwater finally flows into the basin block and is drained.

FIG. 4 is a diagram showing a second embodiment of the present invention. This second embodiment has a low L similar to that of the first embodiment.
Drains 4 on the road side and sidewalk side of the pedestrian sidewalk boundary block
This is an example of providing blocks a and 4b, and is an example of a block used when both the road A and the sidewalk B are permeable pavements. The roadway-side drainage channel 4a is provided on the side surface of the apron 3, and the sidewalk-side drainage channel 4b is provided at a position higher than the roadway-side drainage channel on the side surface of the ridge of the block. Drainage channel 4b on the sidewalk
May be the same as that on the side of the road described in the first embodiment, and the water-permeable surface layer 10b and the water-impermeable base layer 11 of the sidewalk.
It is the same as that on the road side that the boundary with b is located on the exposed surface of the cylindrical body of the sidewalk drainage channel 4b.

FIGS. 5 to 8 are views showing examples of the embodiment of the present invention for pedestrian road boundary blocks of various shapes. FIG. 5 shows an example in which drainage channels 4a and 4b are provided on the roadway side and the sidewalk side of the ridge block 21. Similar to the second embodiment, the roadway-side drainage channel 4a is provided with an impervious roadway. Base layer 1
The drainage channel 4b on the sidewalk is located at the boundary between the water-impermeable base layer 10b and the water-permeable surface layer 11b on the sidewalk.

FIG. 6 shows a structure in which drains 4a and 4b are provided at the lower part of the side wall of the L-shaped boundary block having the short side apron 3b and the upper part of the side wall of the side.
Is located between the base layer 10a on the roadway side and the surface layer 11a, as in the above-described embodiment. Meanwhile, sidewalk B
Has a structure in which a tile block 17 is adhered on a water-impermeable base layer 10b, and a gap between the tile blocks serves as a flow path for rainwater. A water permeable surface is provided in a gap 18 between the block 17 and the space 17.

FIG. 7 shows a structure in which a drainage channel 4 is provided on the upper surface of an apron 3a of an L-shaped walkway boundary block having a short apron 3a on the roadway side, and the upper surface of the base layer 10a on the roadway side is flush with the upper surface of the apron 3a. We have a permeable surface layer 11a
Is provided so as to cover the upper surfaces of the base layer 10a on the roadway side and the apron 3a.

FIG. 8 shows a short apron 3 on the road side and the sidewalk side.
In this example, drainage channels 4a and 4b are provided on the side surfaces of the apron of the inverted T-shaped walkway boundary block having the a and 3b. Such a structure includes the boundary block 1 at the center of the road or the boundary of the parking lot. It can be adopted when provided.

FIGS. 9 and 10 show a seventh embodiment of the present invention. The boundary block of this embodiment is formed by an apron block 20 and a ridge block 21. FIG. The ridge block 21 has a shape and dimensions conventionally used. A water gradient is provided on the upper surface of the apron block 20, and the ridge block 21 is fitted to a portion where the gradient is lowest. A fitting portion 23 provided with a step 22 is formed. By coating and fixing the ridge block 21 on the fitting portion 23 with mortar or the like, a footway boundary block having a cross section similar to that of the first embodiment is formed. The drainage channel 4 is provided on the side of the apron block on the side of the road, as in the first embodiment. Apron block 20 and ridge block 2
The lengths of 1 are not necessarily the same, and after the apron blocks 20 are arranged, the boundaries are formed by fitting and aligning the ridge blocks 21 with the fitting portions 23.

The ridges of the sidewalk block are prominent because they protrude above the ground, and therefore various shapes are used in consideration of aesthetics. Since the structure of the seventh embodiment shown in FIGS. 9 and 10 is a structure in which the apron and the ridge are separated, the same apron block 20 can be used even if the shape and dimensions of the ridge block 21 are changed. There are features.

[0027]

According to the present invention described above, it is possible to provide a drainage function for rainwater or the like to the pedestrian road boundary block, and the drainage channel is automatically formed if the block is constructed in the same manner as the conventional block. There is a feature that is formed. Further, according to the present invention, it is easy to form a boundary block having a drainage channel, and therefore, it is more economical. When used together with the permeable pavement, there is an effect that a road surface on which rainwater does not collect can be formed economically. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing a block of a first embodiment.

FIG. 2 is a cross-sectional view illustrating a construction state of a block according to the first embodiment.

FIG. 3 is a partial perspective view showing various examples of a cylindrical body forming a drainage channel.

FIG. 4 is a sectional view showing the second embodiment in a construction state.

FIG. 5 is a sectional view showing the third embodiment in a construction state.

FIG. 6 is a sectional view showing the fourth embodiment in a construction state.

FIG. 7 is a sectional view showing the fifth embodiment in a construction state.

FIG. 8 is a sectional view showing the sixth embodiment in a construction state.

FIG. 9 is a perspective view of a block according to a seventh embodiment.

FIG. 10 is a sectional view showing the seventh embodiment in a construction state.

FIG. 11 is a sectional view showing a first conventional example of a drainage structure provided at a boundary of a pedestrian road;

FIG. 12 is a cross-sectional view showing a second conventional example of a drainage structure provided at the boundary of a sidewalk;

[Explanation of symbols]

 2 Ridge 3a Roadside apron 3b Sidewalk apron 4 Drainage channel 10a Roadside base 10b Sidewalk base 11a Roadside surface 11b Sidewalk surface 21 Ridge block 23 Fitting

Claims (4)

[Claims] A block is provided with a drainage channel extending in the longitudinal direction of the block on the side of the block on the roadway side and / or on the sidewalk side. A pedestrian sidewalk boundary block for permeable pavement, which is buried and formed. 2. A walkway boundary block integrally including a ridge (2) and an apron (3a, 3b) protruding from a lower side surface of the ridge, a drainage channel having a full length in the longitudinal direction of the block is provided on an upper surface of the apron. The drainage channel is a pedestrian sidewalk boundary block for permeable pavement, which is formed by embedding a tubular member having an upper surface as a permeable surface in an apron with the upper surface exposed. 3. A ridge block (21) forming a boundary of a pedestrian road.
The upper surface and / or the side surface excluding the fitting portion is provided with a fitting portion (23) for mounting a block, and a drainage channel in the longitudinal direction of the block is provided. A pedestrian sidewalk boundary block for water-permeable pavement, which is formed by burying the block with one surface exposed. 4. A pedestrian sidewalk boundary block for permeable pavements according to claim 1, wherein a plurality of the blocks are connected to the drainage channels of adjacent blocks and the drainage channels are connected to the roadways and / or sidewalks. A drainage structure for a permeable pavement, wherein the drainage structure is installed at a boundary between a sidewalk and a roadway at a boundary between a permeable layer (11a, 11b) and an impermeable layer (10a, 10b).