JPH1060810A - Channel block for draining permeating water of water-permeable pavement section and permeating water-drainage construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a channel block capable of efficiently draining permeating water of a water-permeable pavement section. SOLUTION: A channel block 3 is constructed along the edge part of a water- permeable pavement section 2 in a state to link with a channel 5 thereof. The channel block 3 is equipped with a water receiving surface 7 of one upper angle part of a block main body 4 having the channel 5 therein. Drain outlets 16 linking with the channel 5 are provided to the water receiving surface 7 at required intervals in the direction of the length. Then, the lower end of an opening edge in an opening of the upper end of the drain outlet 16 is roughly fitted to the lower end edge of the water receiving surface 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterway block capable of efficiently draining permeated water from a pavement having water permeability. The present invention also relates to a permeated water drainage structure for a permeable pavement using the waterway block.

[0002]

2. Description of the Related Art An example of a conventional road drainage structure is as follows.
As shown in FIG. 11, a drainage channel is constructed by laying a waterway block d in which a vertically divided drainage hole c communicates with a waterway b on one side edge of an asphalt pavement portion a in a state where the waterway is in communication. The rainwater on the road surface e flows into the vertically divided drainage hole c as shown by the arrow, and is discharged through the drainage channel.

However, with such a drainage structure, although the rainwater on the road surface e flows into the vertically divided drainage holes c sequentially, when the amount of rainfall per unit time is large, a water layer is formed on the road surface e. There has been a problem that has been causing a car slip accident.

[0004] In recent years, a drainage structure has been proposed in which rainwater is permeated into a pavement portion and the permeated water flows into a drainage channel. This drainage structure, as shown in FIG.
A drainage channel is formed by forming a water-permeable pavement portion g on the asphalt pavement portion f, and laying a waterway block d having the same configuration as above on one side edge of the asphalt pavement portion f so as to communicate with the waterway b. there were.

[0005]

According to the drainage structure forming the permeable pavement, the rainwater on the road surface is shown in FIG.
As shown by an arrow in FIG. 3, the water penetrates the permeable pavement portion g to reach the asphalt pavement portion e, and then the asphalt pavement surface h flows down toward the buried waterway block d, and a weir is formed on the side surface i of the waterway block. After being stopped, water sprinkled at once on the road surface e, and the spring water flowed into the vertically divided drain hole c. For this reason, in a width portion about 1 m from the waterway block d, the side portion of the road surface e tends to overflow with spring water. The flooding of the side of the road with the spring water was rather dangerous because it was easy to cause a car slip accident.

The present invention has been developed in view of the above problems, and an object of the present invention is to provide a waterway block capable of efficiently draining water permeating a permeable pavement without substantially overflowing the road surface. It is assumed that. It is another object of the present invention to provide a permeated water drainage structure for a permeable pavement using the waterway block.

[0007]

The present invention employs the following means to solve the above-mentioned problems. That is, a waterway block for permeated water drainage of a permeable pavement according to the present invention (hereinafter referred to as a waterway block) is a waterway block that is laid along an edge portion of the permeable pavement and drains permeated water of the pavement,
The upper corner portion of the block main body in which the water channel is provided in the length direction, which is in contact with the end surface of the edge portion of the permeable pavement portion, is a water receiving surface, and the lower edge of the water receiving surface is the lower edge of the edge surface of the edge portion. The water receiving surface is provided with a drain hole communicating with the water channel at a required interval in the length direction thereof, and the drain hole has a lower edge of an upper end opening at a lower end of the water receiving surface. It is characterized by being provided substantially in line with the edge.

[0008] The water receiving surface is preferably composed of a substantially vertical upright surface that is continuous with the upper surface of the block body, and an inclined surface located between the upright surface and the side surface of the block body. In the waterway block, the block main body is, as an example,
It can be formed as having a water channel open at both ends and closed in the circumferential direction, or as a U-shaped groove. Alternatively, it can be formed as a gate-shaped side groove block having an open lower end formed by connecting the upper portions of the opposing side walls with a connecting beam.

In each of the waterway blocks, the upper end of the drainage hole is covered with a perforated plate or a filter member as a mesh to prevent the aggregate used for the permeable pavement from entering the drainage hole. Good. The filter member as a perforated plate is provided with a plurality of through-holes communicating with the upper end of the drainage hole, and the lower end of the through-hole located at the lower end substantially matches the lower edge of the upper edge of the upper end of the drainage hole. Shall be formed as a flat plate body, the plate-shaped filter member,
It is preferable that the left and right edge portions are adhered to the periphery of the upper end of the drain hole while the upper end of the drain hole is individually covered. Further, the filter member as the net-like body is arranged in parallel with the horizontal streaks extending in the length direction of the block body and abutting on the water receiving surface at required intervals up and down, and at least a portion covering the upper end opening of the drain hole, and arranged in parallel. Further, it is preferable that vertical streaks crossing the horizontal streaks are arranged in parallel in a horizontal direction at required intervals, and the vertical streaks and the horizontal streaks are fixed to each other.

In the permeated water drainage structure for a permeable pavement according to the present invention, each of the waterway blocks is laid so that the waterway is in communication with the end face of the edge portion of the water permeable pavement so that the water can be drained. This is a permeated water drainage structure of a permeable pavement part formed with a path. The permeable pavement is formed to a required thickness on an impermeable base having a water gradient toward the water receiving surface, and a lower end edge of an end surface of an edge portion of the permeable pavement is formed on the water receiving surface. Are substantially matched with the lower end edge of the.

[0011] In the seepage water drainage structure, the thickness of the permeable pavement near the water receiving surface is formed substantially equal to the vertical distance between the upper and lower edges of the water receiving surface, and in the portion excluding the vicinity thereof. Preferably, the upper surface of the water-impermeable base is made higher so that the thickness of the water-permeable pavement becomes thinner.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] In FIGS. 1 and 2, a seepage water drainage structure 1 according to the present invention is constructed by laying waterway blocks 3 along an edge portion of a permeable pavement 2 in a continuous state. .

As shown in FIGS. 1 to 3, the waterway block 3 has a block main body 4 having a substantially square cross-sectional shape, and is formed with a circular waterway 5 extending in the longitudinal direction and opening at both ends. ing. The upper corner portion of the block main body 4 which is in contact with the end surface 6 (FIGS. 1 and 2) of the edge portion of the permeable pavement 2 is cut off to form a water receiving surface 7.

The water receiving surface 7 has a substantially vertical upright surface 9 connected to the upper surface 8 of the block main body 4 and an inclined surface 1 connected to the lower edge thereof and having a lower end edge connected to the vertical side surface 10 of the block main body.
1 and a horizontal ridgeline 12 is formed between the inclined surface 11 and the side surface 10.

The vertical distance L (FIG. 3) between the upper and lower edges of the water receiving surface 7 is set to, for example, about 10 cm. In the present embodiment, the inclined surface 11 is slightly depressed except for both side edges, and the bottom surface 15 of the depressed portion 13 has
As shown in FIGS. 2 and 3, a tapered drain hole 16 having a circular cross section extending obliquely downward and communicating with the water channel 5 is provided on the bottom surface 1.
5 are juxtaposed in the length direction. The lower edge 17 of the rim of the drain hole 16 substantially matches the lower edge 19 of the depression 13 (which substantially matches the lower edge of the water receiving surface 7).

Further, in the present embodiment, as shown in FIG. 4, the upper end of the drain hole 16 is opened for the purpose of preventing the aggregate and the dust constituting the permeable pavement from entering the drain hole 16. A plate-shaped filter member (perforated plate) 22 provided with a number of small holes 18 along the rim is fitted into the depression 13 so as to cover the upper end opening 23 of the drain hole 16, and FIG. As shown, the lower surfaces 26, 26 of the left and right edge portions of the plate-shaped filter member 22 are fixed to the bottom surface 15 of the depression by an adhesive tape. In this fixed state, the lower end of the through hole located at the lower end is the lower edge 2 of the upper end opening of the drain hole.
3 is matched. The reason why the filter member 22 is fixed with the adhesive tape so as to be removable as described above is to facilitate the replacement when the filter member 22 is clogged.

The permeable pavement (road gradient is 2%) 2
Is provided with a predetermined thickness on an impermeable base 20 made of a normal asphalt pavement or a concrete pavement, and an upper surface 21 thereof is connected to the upper surface 8 of the block body 4. The thickness of the permeable pavement 2 is set equal to the vertical distance L between the upper and lower edges of the water receiving surface 7 (FIG. 3). The construction of the asphalt pavement or the concrete pavement can be performed reliably and easily using the ridgeline 12 as a ruler.

As shown in FIG. 6, the permeable pavement portion 2 may be formed to have a full width by the thickness of the distance L. In the present embodiment, as shown in FIG. In consideration of the construction economy of the permeable pavement section 2, only the portion close to the water receiving surface 7 has a thickness (for example, 10 cm) corresponding to the vertical distance between the upper and lower edges of the water receiving surface, and the other portions are Also, it is formed to a thickness of, for example, about half.

In FIG. 1, reference numeral 27 denotes a pedestrian road boundary block. This is the same in FIGS. 6 and 9.

However, the road surface 29 having such a drainage structure
When there is rainfall in FIG. 1, the rainwater permeates through the permeable pavement 2 and reaches the upper surface 30 of the base 20,
The upper surface 30 flows down toward the buried channel block 3.
As described above, since the thickness of the permeable pavement 5 is set to be equal to the vertical distance L, the water that has permeated the permeable pavement 2 does not spring into the road surface 29 but flows into the drain hole 16. Smooth inflow and discharge through drainage channels. In FIG. 1, the arrows indicate the state of water penetration and the state of infiltration of water into the water channel 5.

[Second Embodiment] FIG. 6 shows another embodiment of the seepage water drainage structure 1 according to the present invention. The permeable pavement has the same construction as in the first embodiment. The waterway block 3 is laid along the edge of the part 2 in a continuous state. As shown in FIGS. 6 to 8, the waterway block 3 has a block-shaped main body 4 having an open lower end formed by connecting upper portions of both side walls 31, 31 with connecting beams 32. , 31 are formed with a water channel 33. The lower portions of the side walls 31, 31 may be connected to each other by reinforcing beams as appropriate.

Then, one side wall 31 of the block body 4
The upper corner portion of the edge portion of the permeable pavement portion which is in contact with the end surface 6 is cut off to form a water receiving surface 7 composed of the upright surface 9 and the inclined surface 11 as described above. A horizontal ridgeline 12 is formed between the inclined surface 11 and the block side surface 10, which can be a ruler when the permeable pavement is constructed. In addition, the vertical distance L between the upper and lower edges of the water receiving surface 7 is set to, for example, about 10 cm similarly to the above. And the inclined surface 11
Is slightly depressed except for both side edges, and a bottom surface 15 of the depression 13 has a drain hole 16 extending obliquely downward and having an elliptical cross section communicating with the water channel 33 in a longitudinal direction of the bottom surface 15. Are installed side by side. The lower edge 17 of the edge of the drain hole 16 is the lower edge of the depression 13 (substantially coincides with the lower edge of the water receiving surface 7).
19 is almost matched.

In the present embodiment, as shown in FIG. 8, the entire upper end 23 of each drain hole 16 is covered with a mesh filter member (mesh body) 35. The mesh-shaped filter member 35 extends in the length direction of the water receiving surface 7 and arranges a plurality of horizontal streaks 36 in contact with the water receiving surface vertically in parallel at required intervals. In the portion covering the vertical stripes 3, the vertical stripes 3 that
7 are arranged in parallel in the horizontal direction at required intervals, and the vertical and horizontal streaks are fixed to each other. The filter portion prevents aggregates and dust used for the permeable pavement from entering the drain hole. And the horizontal line 36
Is in contact with the inclined surface 11, the water receiving surface 7
The water received at the above flows along the inclined surface 11 in the length direction thereof without any obstacle, and can flow into the drain hole 16. Also in the present embodiment, similarly to the above, the water that has permeated the permeable pavement portion 2 flows into the drain hole 16 smoothly without springing onto the road surface 29 and is discharged through the drain channel. The arrow in FIG.
The inflow state of water into the water channel 5 is shown.

[Other Embodiments] FIG. 9 shows another embodiment of the seepage water drainage structure. The waterway block 3 is provided on the vertical side surface 10 of the block body 4 and on the permeable pavement 2. An upper portion of the edge portion in contact with the end surface 6 is defined as a water receiving surface 7, and the water receiving surface 7 is provided with a drain hole 16 communicating with the block water channel 5 at a required interval in its length direction. In this case, the lower edge 17 of the upper end opening 16 is provided substantially in line with the lower edge of the water receiving surface. The upper end opening of the drain hole 16 is covered with a filter member as described above.

The drain hole 16 is not limited to the circular hole having a cross section shown in FIG. 3 or the elliptical hole having a cross section shown in FIG. 7, as long as the permeated water of the permeable pavement section 2 flows into the water channel 5. ,
Other forms may be used.

The waterway block body may be formed with a U-shaped groove, and the water receiving surface and the drainage hole communicating with the waterway can be configured as in the above-described embodiment.

The plate-like filter member 22 shown in FIG.
8 is used to cover the upper end of the drain hole of the waterway block of various forms according to the present invention.

The plate-like filter member and the net-like filter member are preferably detachably fixed in order to facilitate replacement at the time of clogging, but may be in a non-removable fixed state.

[0029]

The present invention has the following excellent effects. In the present invention, the lower end edge of the water receiving surface of the block body substantially matches the lower end edge of the end surface of the edge portion of the permeable pavement portion, and the lower edge of the upper end opening of the drain hole provided in the water receiving surface is connected to the lower end of the water receiving surface. By adopting a configuration that substantially matches the lower edge, the water that has permeated the permeable pavement and reached the water receiving surface can smoothly flow into the drain hole sequentially, and therefore, the water that has permeated the permeable pavement. Can be drained reliably without springing on the road surface.
As a result, surface water on the road surface is reduced as much as possible, which can greatly contribute to prevention of a slip accident or the like of an automobile.

The thickness of the water-permeable pavement portion is increased in the vicinity of the water receiving surface of the block body, but in the remaining portion, the upper surface of the water-impermeable base is formed high so that it can be formed thin. In this case, it is possible to improve the economic efficiency by reducing the cost of the permeable pavement as much as possible while ensuring good drainage at the drain hole.

When the vertical side surface of the block body is connected to the lower end edge of the inclined surface forming the water receiving surface, a ridgeline is formed at the boundary between the inclined surface and the vertical side surface, so that the lower side of the permeable pavement portion is formed. Can be easily performed using the ridgeline as a ruler.

[Brief description of the drawings]

FIG. 1 is a sectional view illustrating a seepage water drainage structure.

FIG. 2 is a partially enlarged view of FIG.

FIG. 3 is a perspective view showing a waterway block.

FIG. 4 is a perspective view showing a state in which an upper end opening of a drain hole is covered with a plate-shaped filter member.

FIG. 5 is a sectional view thereof.

FIG. 6 is a cross-sectional view illustrating another embodiment of the seepage water drainage structure.

FIG. 7 is a cross-sectional view illustrating another embodiment of the seepage water drainage structure.

FIG. 8 is a perspective view showing a waterway block used for it.

FIG. 9 is a perspective view showing a state where the upper end opening of the drain hole is covered with a mesh filter member.

FIG. 10 is a cross-sectional view illustrating another embodiment of the seepage water drainage structure.

FIG. 11 is a cross-sectional view illustrating a conventional drainage structure.

FIG. 12 is a cross-sectional view illustrating another embodiment of the conventional drainage structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seepage water drainage structure 2 Permeable pavement part 3 Waterway block 4 Block main body 5 Waterway 6 End face of edge part of water-permeable pavement part 7 Water receiving surface 9 Elevation surface 10 Side surface 11 Inclined surface 12 Ridge line 20 Impermeable base 22 Plate shape Filter member 23 Upper end opening of drain hole 31 Side wall 32 Connecting beam 33 Water channel 35 Reticulated filter member 36 Horizontal streak 37 Vertical streak

Claims (10)

[Claims] 1. A waterway block laid along an edge portion of a water-permeable pavement portion for draining permeated water of the pavement portion, wherein the water-permeable pavement portion of a block body having a waterway provided in a longitudinal direction. The upper corner portion in contact with the end surface of the edge portion is a water receiving surface, and the lower edge of the water receiving surface is substantially aligned with the lower edge of the end surface of the edge portion. A drain hole communicating with the water channel, wherein the drain hole is provided with the lower edge of the upper end opening substantially matching the lower edge of the water receiving surface. Waterway block for water drainage. 2. The water receiving surface according to claim 1, wherein the water receiving surface comprises a substantially vertical vertical surface connected to the upper surface of the block main body, and an inclined surface located between the vertical surface and the side surface of the block main body. Waterway block for seepage water drainage of the permeable pavement. 3. The waterway block for permeated water drainage of a permeable pavement according to claim 1, wherein the block body has a waterway open at both ends and closed in the circumferential direction. 4. The waterway block according to claim 1, wherein the block body is a U-shaped groove. 5. The permeable pavement according to claim 1, wherein the block main body is a side groove block having a gate shape open at the lower end formed by connecting upper portions of opposing side walls with connecting beams. Waterway block for seepage water drainage. 6. An upper end of the drain hole is covered with a perforated plate or a filter member as a mesh to prevent the aggregate used for the permeable pavement from entering the drain hole. Item 3. A waterway block for seepage drainage of a permeable pavement according to item 1 or 2. 7. A filter member as a perforated plate is provided with a plurality of through-holes communicating with an upper end of a drain hole, and a lower end of the through-hole located at a lower end is a mouth of an upper end opening of the drain hole. The plate-shaped filter member is formed as a flat plate substantially aligned with the lower edge of the edge, and the left and right edges of the filter member are individually covered with the upper end of the drain hole. 7. The waterway block for permeated water drainage of a permeable pavement according to claim 6, wherein the waterway block is bonded to the periphery of the upper end. 8. A filter member as a net-like body is provided with horizontal streaks extending in the longitudinal direction of the block body and abutting on the water receiving surface at required intervals vertically and at least in a portion covering an upper end opening of the drain hole. 7. The seepage water drainage of a permeable pavement according to claim 6, wherein the vertical streaks crossing the horizontal streaks arranged side by side are arranged in parallel in the horizontal direction at required intervals, and the vertical streaks and the horizontal streaks are fixed to each other. Irrigation block. 9. A water permeable structure comprising: laying a waterway block according to claim 1 or 2 so that the waterway is in communication with the end face of the edge portion of the permeable pavement portion to form a drainage channel. A permeate drainage structure for a permeable pavement, wherein the permeable pavement is formed to a required thickness on a water-impermeable base having a water gradient toward the water receiving surface; A lower end edge of an end surface of an edge portion of the water passage surface substantially coincides with a lower end edge of the water receiving surface. 10. The water-permeable pavement has a thickness in the vicinity of the water-receiving surface substantially equal to the vertical distance between the upper and lower edges of the water-receiving surface. 10. The seepage water drainage structure for a water-permeable pavement according to claim 9, wherein the upper surface of the water-impermeable base is formed high so that the thickness of the pavement is reduced.