JP2764544B2 - Street lid for permeable pavement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a street culvert for covering a street along a permeable pavement road and collecting and draining water such as rainwater that has penetrated into the road. .

[0002]

2. Description of the Related Art Paved roads such as general roads, expressways, parks, and urban roads are provided with drainage facilities such as circular waterways and U-shaped gutters in order to prevent rainwater from staying on the road surface due to rainfall or the like. I have. Furthermore, in recent years, the technology of constructing a paved road surface having water permeability and water permeability has been widely adopted for road construction on general roads and highways. As shown in FIG. 9, this permeable pavement road is generally provided with a pavement base (I) as a base on a subgrade (D), and a permeable asphalt layer (J) on the surface of the pavement base (I).
Is laid. This asphalt layer (J) has a water-permeable asphalt surface layer (J1) in consideration of durability.
, A water-impermeable base layer (J2) is provided as a base.

[0003] On both sides of this permeable paved road (H),
The roadside zone block (A) is buried flush with the road surface, and the pedestrian roadway boundary block (B) is installed in combination with the roadside zone block (A) in an L-shaped cross section, and the pedestrian roadway boundary block (A) is installed. A sidewalk (C) is constructed on the side of B). The roadside block (A) and the pedestrian road boundary block (B) also function as street drains for flowing rainwater or the like in the direction of inclination of the road. The water flowing in the groove surrounded by the roadside zone block (A) and the pedestrian road boundary block (B) is disposed at a predetermined interval, and is covered by a grating (not shown). ), And is collected in an underdrain (E) such as a drainage fume pipe buried below along the base block (A), and then drained to a predetermined place. The culvert (E) is installed on a foundation chestnut stone (G) with a rolled concrete (F).

[0004]

The permeable paved road (H) has various excellent effects such as prevention of splashing of heavy rain, reduction of traffic noise by a sound absorbing effect, and improvement of visibility by preventing a smoking phenomenon. However, when a large amount of rainfall occurs, the following problems occur. That is, since the rainwater that has penetrated into the permeable asphalt surface layer (J1) is blocked by the roadside block (A) made of impervious concrete, the rainwater at the boundary between the surface layer (J1) and the base layer (J2) is removed. It is stored and turned into groundwater, which in turn degrades the asphalt layer (J).

In addition, when the asphalt surface layer (J1) rapidly absorbs a large amount of water due to a large amount of rainfall, the surface layer (J1)
The water that has permeated into 1) flows laterally along the boundary between the surface layer (J1) and the base layer (J2) according to the cross slope or longitudinal slope of the road (H), and hits the roadside block (A). Since the roadside block (A) is made of impervious concrete, as shown by arrows in FIG. 9, the roadside block (A) flows out like spring water and overflows onto the above-mentioned street. This spring water flows on the surface of the asphalt layer (J) and merges with the water collected in the street drain, and a large amount of water flowing violently on the street drains away fallen leaves and dust and flows into the water collecting basin. Therefore, clogging often occurs in the culvert (E).
Therefore, it is necessary to frequently clean the culvert (E) which is extremely difficult. On the other hand, if the above-mentioned spring water freezes in winter, the vicinity of the street in the asphalt layer (J) is generally a motorcycle or bicycle lane, which may cause a traffic accident. In any case, it is necessary to prevent spring water from the boundary between the asphalt layer (J) and the roadside block (A) from the viewpoint of traffic safety.

Accordingly, an object of the present invention is to provide a permeable pavement roadway lid having a function of smoothly draining rainwater that has permeated the road surface even when a large amount of rainfall occurs. .

[0007]

In order to achieve the above object, a street lid for a water-permeable pavement according to claim 1 of the present invention has a water-permeable surface layer formed on a surface of a water-impermeable base layer. Is a permeable pavement roadway lid that is buried in series in a street along the permeable pavement road, and covers the street so that it is flush with the road surface. A drain groove and a water guide groove communicating with the drain groove are respectively provided on the lower surface of the rectangular block body, and the drain groove penetrates between both ends of the block body in a direction along a road, and The groove is provided along a road crossing direction from a location adjacent to the boundary between the base layer and the surface layer in the pavement in the block body, and L is provided on a side surface of the block body connected to the permeable pavement road. The L-shaped steel is provided with a plurality of through-holes. It is equipped with a.

A second aspect of the present invention provides a street lid for a water-permeable pavement surface, in a street along a water-permeable pavement having a water-permeable surface layer on the surface of an impermeable base layer. A culvert for a permeable pavement road surface, which is buried in series with the road surface and covers the culvert so that it is flush with the road surface, and a drain groove is provided on the lower surface of a rectangular block body embedded in the culvert. A water guide groove communicating with the drain groove is provided, and the drain groove passes through both ends of the block body in a direction along the road, and the water guide groove is connected to the base layer in the pavement road in the block body. The block body is disposed along the road crossing direction from a point adjacent to the vicinity of the boundary with the surface layer, and the block body is a board member constituting a lower surface portion including the drainage groove and the water guide groove, and from above the board member. Fills the recesses to form a flush top surface Together consisting of Hama member, through holes of small diameter from the upper surface of the block body leads to the drainage groove is formed.

[0009]

According to the first aspect of the present invention, the rainwater that has infiltrated the permeable pavement surface flows toward the side of the road at the boundary between the surface layer and the base layer in accordance with the transverse gradient or the longitudinal gradient, and the rainwater in the pavement road is removed. The water flows from a location adjacent to the vicinity of the boundary between the base layer and the surface layer into a drainage ditch through a headrace provided along the cross direction of the road. Here, the street lid is arranged in series to connect drainage grooves penetrating between both ends of the block body in a direction along the road. Therefore, the rainwater collected through each of the water guide grooves flows in the drain grooves according to the vertical gradient of the road, and flows into the water collecting basin. Therefore, not only during normal rainfall, but also when there is a large amount of rainfall, rainwater that has permeated the permeable pavement can be efficiently collected and drained, ensuring traffic safety and reducing the deterioration of the pavement. Prevention can be achieved, and rainwater flows between the lower surface of the culvert and the culvert, which covers the culvert, so that the fallen leaves and dust do not flow as in the past, and almost all clogging of the culvert occurs. Absent. In addition, since the L-shaped steel is provided on the connecting side surface of the block body and the permeable pavement and a plurality of through holes are formed in the L-shaped steel, rainwater stored inside the permeable pavement can be transmitted through the L-shaped steel. It can be collected in the direction of the street lid through the hole.

[0010] According to the second aspect of the present invention, the block body comprises a substrate member constituting a lower surface portion including a drain groove and a water guiding groove;
A filling member that fills the recess from above the substrate member to form a flush upper surface is inexpensive. For this street lid, it is necessary to make the thickness of the block body 100 mm or less in consideration of durability,
The present invention is applicable to a road having a relatively narrow road width and heavy vehicles. Furthermore, since a small-diameter through-hole is formed in the board member, which leads to the drainage ditch, in the event of a large amount of rainfall, rainwater that has flowed on the road surface without permeating the road can also be collected in the drainage ditch. As a result, safety on the culvert is further improved, and clogging of the culvert can be more reliably prevented.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment according to the present invention will be described below in detail with reference to the drawings. 1 is a schematic perspective view showing a street lid for a permeable pavement road according to one embodiment of the present invention, and FIG.
FIG. 2 is a schematic sectional view for explaining a construction state. As shown in FIG. 2, the street lid has a rectangular shape that is fitted to a street (a) formed by cutting out a part of the roadside block (A) on the road (H) side into an L-shape. A block (1) is provided, and three water guide grooves (2) and two drain grooves (3) are formed on the lower surface of the block (1). This block (1) is made of 100% by concrete poured into a formwork.
It is integrally molded to a thickness of at least mm. As this concrete, general concrete may be used, but it is preferable to use permeable concrete (porous concrete).

Each drain groove (3) is recessed upward from the lower surface of the block (1) in an arrangement parallel to the direction (4) along the road in the block (1). On the other hand, each of the water guide grooves (2) is recessed upward from the lower surface of the block body (1) in a parallel arrangement along the road crossing direction (5), that is, the direction orthogonal to each of the drain grooves (3). The drain grooves (3) and the water guide grooves (2) communicate with each other at intersections. Each drain (3) is a block (1)
It is necessary to be formed so as to penetrate between both ends in the direction (4) along the road in the above, but each of the water guide grooves (2) communicates with each of the drain grooves (3) from one end face in contact with the asphalt layer (J). It is not particularly necessary to penetrate between both ends as in this embodiment. In addition, what is necessary is just to form the number of the drain groove (3) and the water guide groove (2) arbitrarily according to durability.

As shown in FIG. 2, this street lid has a structure in which each water channel (2) is connected to a base layer (J2) and a surface layer (J) in a paved road (H).
It is installed so as to be adjacent to the boundary with 1), and is buried in series in a street culvert (a) along a paved road (H). At this time, the drainage grooves (3) facing each street lid are communicated in a line, and the upper surface of the block body (1) is flush with the upper surfaces of the roadside block (A) and the pavement road (H). .

The rainwater that has permeated into the permeable pavement road (H) forms a boundary between the permeable surface layer (J1) and the impermeable base layer (J2) as shown by the arrow in FIG. It flows toward the side of H), and flows into the drainage ditch (3) through each water guide ditch (2). The collected rainwater flows in the drainage ditch (3) according to the vertical gradient of the road, is collected from each collecting basin (not shown) into the culvert (E), and is discharged to a predetermined place.

Therefore, even when a large amount of rainfall occurs, it is possible to efficiently collect and drain rainwater that has penetrated into the permeable pavement road (H), prevent deterioration of the pavement road surface, and prevent the top surface of the street culvert. Since the flow of water is extremely reduced, traffic safety can be ensured. Moreover, rainwater flows between the underside of the culvert, which covers the culvert, and the culvert,
Unlike the conventional case, no fallen leaves and dust are flowed, and clogging of the culvert (E) is almost eliminated.

FIG. 3 is an explanatory view showing the construction of an embodiment of a street lid according to the present invention. The side surface of the block body (1) connected to the permeable pavement (H) is as shown in the drawing. An L-shaped steel (17) is provided. The L-shaped steel (17) is provided with a plurality of through holes (17a). Therefore, rainwater and the like stored inside the pavement road (H) are not covered by the through holes (17a).
Flows into the water guide groove (2) and the drain groove (3) through the ridge. Further, in this embodiment, a configuration in which the drain groove (3) is formed in a pipe shape as shown in the enlarged view of FIG. By forming the drain groove (3) in a pipe shape in this manner, the strength against a load from above is improved.

FIG. 4 is a perspective view when the street lid of the above embodiment is applied to an elevated road. Generally, on an elevated road, a gutter screen (6) is provided along both sides of the road (H), and a gap between the gutter screen (6) and the structure (7) of the elevated road extends along the road (H). A drainage channel (8) is formed. Conventionally, the rainwater flowing laterally along the road (H) along the cross slope of the road (H) passes through the water passage holes (9) formed in the gutter screen (6) as indicated by phantom lines. Through the drainage channel (8), but in the event of heavy rain, the efficiency of water collection by the waterway (9) deteriorates, and most of the rainwater flows along the outside of the gutter screen (6), The road (H) may be flooded. Therefore, a street lid is provided along the road (H) as in FIG. 2, and the lower end portion of the gutter screen (6) is fixed to the upper surface of the block body (1). Therefore, the water flowing sideways in the road (H) is efficiently collected in the drain (3) and the drain (8) through the headrace (2).

FIG. 5 is a longitudinal sectional view showing another embodiment of the present invention in an installed state. This street lid is composed of one board member (1
A plurality of water guide grooves (11) and a plurality of drain grooves (12) similar to the above embodiment are formed in the lower surface portion of (0) so as to intersect in a grid pattern, and are formed from above the substrate member (10). The block (15) is formed by filling the recess with a filling member (13) and forming the upper surface flush with the filling member (13). Also, a substrate member (10)
A small-diameter through-hole (16) is formed in a portion exposed on the upper surface of the block so that water on the block body (15) can flow down into the drain groove (12) through the through-hole (16) to collect water. Has become.

At the time of installing the above-mentioned street lid, the same as the above-mentioned street culvert (a) formed on the roadside block (A), the cross section of which is approximately U-shaped and which is intermittently passed at regular intervals on both sides. Laying an angle material (14) with a water hole (14a),
A culvert is placed on this. The culvert by integrally forming the concrete of the above-described embodiment has a block body (1) of 100.
mm or more and can be applied to a road with a relatively wide road and heavy vehicles, the street lid according to the present embodiment has a block body (1) in consideration of durability.
5) It is necessary to make the thickness of 100 mm or less,
The present invention can be applied to a road where the width of the road is relatively narrow and heavy vehicles do not pass.

This street lid has the advantage of being light in weight because it has a small thickness and a small amount of, for example, concrete used as the filling member (13). In addition, the water channel (1
Both side walls in the direction in which 1) is formed are tapered so that the lower portion becomes narrower, and combined with the above-mentioned light weight, can be lifted upward to facilitate cleaning and maintenance. As the substrate member (10), a plank sheet,
A deck sheet, a roof material, a channel material, or the like can be used, and a portion exposed on the upper surface needs to be subjected to a non-slip process. However, when the upper part of the substrate member (10) is buried in concrete as the filling member (13), it is not necessary to prevent slippage because the concrete has a large slip force with respect to the tire of the automobile.

Further, in the above embodiment, as the angle member (14), one having a plurality of through holes (14b) in the side wall portion (14c) as shown in FIG. 6 can also be suitably used. . By providing the through-holes (14b) in the angle member (14) in this manner, rainwater or the like stored inside the pavement road (H) can be suitably transferred to the water guiding groove (2) and the drain groove (3). Can be sent. Further, a configuration in which the angle member (14) and the substrate member (10) are fixed with bolts (B) as shown in FIG. 7 can also be suitably adopted in the present invention.

FIG. 8 is a perspective view showing another example of use of the present invention. In this embodiment, two street lids of the embodiment shown in FIG. 1 are superposed. That is, the water guide grooves (2) are superposed on each other to form a water guide channel (20), and the water drain grooves (3) are formed.
The drainage channel (3) is formed by superimposing one another. Therefore, it can be effectively used when there is no roadside block (A) or when a roadside block (A) having no street culvert (a) is installed.

[0023]

As described above, according to the street lid for a water-permeable pavement surface of the present invention, rainwater flowing to the side of the road at the boundary between the surface layer and the base layer of the water-permeable pavement surface is crossed. The water can be collected in the drainage ditch through the water ditches arranged along the direction, and can be poured from the drainage ditch into the catchment basin. Rainwater that has infiltrated the pavement surface can be efficiently collected and drained. As a result, it is possible to prevent deterioration of the pavement road surface, secure traffic safety, and to drain rainwater between the underside of the street lid and the street drain to drain off fallen leaves and dust. And clogging of the culvert can be prevented.

Further, if an L-shaped steel is provided on a surface of the block body connected to the permeable pavement road and a through hole is formed in the L-shaped steel, rainwater stored inside the pavement road can be drained by a ditches and drains. It can be efficiently collected in the groove. On the other hand, if the block body is constituted by a substrate member forming a lower surface portion including a drain groove and a water guide groove, and a filling member filled in a recess from above the substrate member to form a flush upper surface, It can be manufactured at low cost and can be applied to roads where the road width is relatively narrow and heavy vehicles do not pass. If a small diameter through hole is formed in the board member that leads to the drain, if there is a large amount of rain,
Rainwater that has flown on the road surface without penetrating the road can also be collected in the drainage ditch, further enhancing safety on the street culvert and more reliably preventing clogging of the culvert.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the installation state of the embodiment.

FIG. 3 is an explanatory view of an installation state showing an embodiment of the present invention.

FIG. 4 is a longitudinal sectional view showing still another installation example of the embodiment of the present invention.

FIG. 5 is a longitudinal sectional view of another embodiment of the present invention in an installed state.

FIG. 6 is an explanatory view showing another embodiment of the angle member in the embodiment shown in FIG. 5;

FIG. 7 is a sectional view showing another installation example of the embodiment shown in FIG. 5;

FIG. 8 is a perspective view showing another embodiment of the present invention.

FIG. 9 is a longitudinal sectional view showing a conventional drainage facility.

[Explanation of symbols]

 1, 15 block body 2, 20 water guide groove 3, 12 drain groove 10 substrate member 13 filling member 16 through hole 17 L-shaped steel 17a through hole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E03F 1/00 E01C 11/22 E03F 5/04

Claims (2)

(57) [Claims] 1. A street drain is buried in series in a street along a water-permeable pavement having a water-permeable surface layer on the surface of an impermeable base layer, and a street drain is provided to be flush with the road surface. A drainage lid for a permeable pavement road surface to be covered, wherein a drainage groove and a water guide groove communicating with the drainage groove are provided on a lower surface of a rectangular block body embedded in the street drain, respectively, wherein the drainage groove is provided. The block penetrates between both ends in the direction along the road in the block body, and the water guide groove is provided along a road crossing direction from a location adjacent to a boundary between the base layer and the surface layer in the pavement road in the block body. And the permeable pavement of the block body
L-shaped steel is provided on the side connected to the road.
A street lid for a water-permeable pavement , wherein a plurality of through holes are formed in the street lid. 2. A water-permeable base layer having a water-permeable surface.
In-line in a street along a permeable paved road with a surface layer
It is buried in the state and covers the street so that it is flush with the road surface
A street lid for a permeable pavement, which is embedded in the street
Drain groove on the lower surface of the block body and communicate with this drain groove
And a drainage channel is provided.
Penetrate between both ends of the
In addition, the headrace ditches are formed in a block body on a paved road.
Road crossing from a point adjacent to the boundary between the base layer and the surface layer
The block body is disposed along the drainage direction.
Substrate member forming lower surface portion including groove and water guide groove
And filled into the recess from above this substrate member,
A filling member forming the upper surface, and
A small-diameter through hole is formed from the upper surface of the hook body to the drain groove.
A street lid for a permeable pavement surface, which is characterized in that: