JP2887672B1 - Drainage culvert applied to permeable roads - Google Patents

Abstract

An object of the present invention is to form a ridge on the side of a drainage culvert, form a water-permeable hole near the ridge, and perform asphalt pavement work using the ridgeline surface of the ridge as a guide. It is an object of the present invention to provide a drainage culvert which can be easily operated and can efficiently drain a large amount of rainwater or the like by a water permeation function of the water permeation hole or the like. SOLUTION: In the present invention, a drain formed by bulging an appropriate portion of an outer surface of one side wall to form an overhang portion and forming grooves, collection / drainage holes and concave ridges having various shapes on the one side wall. The construction of a permeable culvert with asphalt pavement and permeable pavement will speed up the pavement work.In addition, the positional relationship between the culvert for drainage and the permeable road will be firmly maintained, It achieves an effective drainage function regardless of whether the amount of water is large or small.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage culvert for draining rainwater or the like on a road surface such as a highway, by laying a drainage pavement on the road so that water does not accumulate on the road surface. The present invention relates to a method of laying a drainage culvert.

[0002]

2. Description of the Related Art In the construction of a road composed of a conventional asphalt pavement and a permeable pavement located above the asphalt pavement, generally, an L-shaped gutter or the like is installed on the road shoulder and then the asphalt is placed near the side of the road shoulder. Equivalent to the specified thickness of the pavement,
For example, a guide member such as a plate, a string, etc. is installed, pavement is performed along these guide members, and then a water-permeable pavement is formed so as to be flush with an end of an L-shaped gutter or the like. Some roads constructed in this way are drained of rainwater and the like by being guided by the permeable pavement and led to an L-shaped gutter or the like and a water collecting mass installed thereunder.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of a drainage road composed of a conventional asphalt pavement and a permeable pavement. In addition to forming the overhanging portion, various holes for water permeability are formed in the vicinity of the overhanging portion, asphalt pavement work is easily performed using the upper end surface of the overhanging portion as a guide, and a large amount of rainwater etc. An object of the present invention is to provide a drainage culvert capable of performing efficient drainage.

[0004]

According to the first aspect of the present invention, an appropriate portion of the outer surface of one of the side walls is expanded so as to form a step on one of the side walls forming a gutter channel by both side walls. A drainage culvert that projects to form an overhang, and when constructing a water-permeable road, performs asphalt pavement with the upper end surface of the overhang as a reference plane. A water guide groove is formed in an orthogonal portion between an outer surface of the protruding portion and an upper end surface of the overhang portion, and a plurality of vertical water channels are formed at appropriate intervals on the outer surface, and the vertical water channel is formed. 2. The drainage culvert according to claim 1, wherein a drainage hole is formed by penetrating the inner surface of the side wall into the water channel at the position, wherein the rainwater or the like of the permeable road is quickly guided to the drainage channel to drain. The invention according to claim 3 of the present application is a collection / drainage 3. A drainage culvert according to claim 2, wherein the drainage culvert has a branch-like drainage hole formed so as to penetrate the overhanging portion while communicating with the drainage passage. The invention according to claim 4 of the present application is characterized in that a recessed portion is provided on one side wall of the overhang portion on the side surface of the overhanging portion. A drainage culvert according to the invention, wherein a strong connection between an asphalt pavement and a U-shaped culvert is obtained.

[0005]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a U-shape of the present invention in which a side channel waterway 3 is formed by both side walls 11 and 11 having lid catching portions 4 and 4 at the upper end for installing a cover plate and the like and a bottom plate portion 12. FIG. 4 is a perspective view showing the culvert 1, in which a protruding portion 5 is formed by bulging an appropriate portion of an outer surface of one side wall 11 to form a stepped portion 9, and the side wall 11 constituting the stepped portion 9 is flat. Outer side 1
A water guide groove 7 for guiding rainwater or the like is formed at a portion orthogonal to the flat upper end surface 51 of the overhang portion 5 and the overhang portion 5.
A plurality of vertical water conduits 6, 6 for guiding rainwater or the like are formed at appropriate intervals on the outer side surface 111, and the side wall inner surface 2 is formed in the water conduit 7 at the position of the vertical water conduit 6, 6. The collection / drainage holes 8 are formed therethrough.

FIG. 2 is a cross-sectional view of the U-shaped drainage culvert 1 taken along line AA of FIG. 1 and a cross-section of a permeable road composed of asphalt pavement 110 and permeable pavement 100. FIG.

The construction of a permeable road and the operation of drainage of the U-shaped culvert 1 will be described with reference to FIG.

First, the construction of a water-permeable road will be described. First, on the side of the ground where the road is to be constructed, the upper surface of the asphalt pavement 110 is formed with the ridge 5 formed on the drainage culvert 1.
U-shaped culvert 1 is laid so as to obtain a preset position which is flush with the upper end surface 51 of the asphalt pavement 110. Do. Next, on the asphalt pavement 110, the water-permeable pavement 100 is formed up to the step portion 9 of one U-shaped culvert side wall 11 having a preset height.

In such a road, the asphalt pavement 110 is formed on a plurality of concave ridges 300, 300 (not shown in FIG. 1) of the overhang portion 5 previously formed on one drainage culvert side wall 11. Part of the permeable pavement 100 is fitted into each of the plurality of vertical water conduits 6 and 6 and the water conduit 7 formed in the stepped portion 9 of the one drainage culvert side wall 11. Therefore, even if vibration occurs, the positional relationship between the drainage culvert 1 and each of the pavements 100 and 110 is maintained without deviation.

Next, the drainage action of the water-permeable road constructed as described above will be described. Rainwater and the like at the time of precipitation penetrate into the water-permeable pavement 100, and a part of the permeating rainwater and the like is drained. Along the pavement 100, a plurality of vertical headraces 6,
It is quickly guided in 6 directions and in the direction of the water channel 7,
Another part of the permeating rainwater and the like is quickly guided in the direction of the water guiding groove 7 along the boundary surface 200 which is the surface of the asphalt pavement 110. The rainwater and the like guided to the water channel 7 are guided to collecting / draining holes 8, 8 and reach the drainage channel 3 of the drainage culvert 1 to be drained.

FIG. 3 shows another embodiment having a collecting / draining hole 8 different from that of the drainage culvert shown in FIG. 2, in which lid cover portions 4, 4 for installing a cover plate and the like have upper ends. The drainage culvert 1 of the present invention in which the side ditch waterway 3 is formed by the side walls 11, 11 provided in the portion and the bottom plate portion 12,
And drain holes 81, 81 penetrating the overhanging portion 5 and communicating therewith.
A part of the rainwater etc. of the permeable road is returned to the ground through the road.

FIG. 4 shows another embodiment having a concave strip 310 having a shape different from that of the drainage culvert 1 shown in FIG.・
In the drainage culvert 1 in which the drainage holes 8 and the like are formed, the concave strip 310 provided in the overhanging section 5 is formed as a single section, and the concave cross-sectional area can be formed large, and the end of the asphalt pavement can be formed. The amount of the portion that fits into the concave portion 310 is increased to obtain a stronger connection between the asphalt pavement and the drainage culvert.

FIG. 5 is a perspective view of another embodiment having a shape different from that of the drainage culvert shown in FIGS. 2, 3 and 4.
In this tubular drainage culvert 1, a projecting portion 5, a guide groove 7, a collection / drainage hole 8, etc. are formed on one side wall 11,
The water guided from the guide groove 7, the collecting / draining hole 8 and the like is collected and drained in the cylindrical drainage channel 3 of the drainage culvert 1, and is used to construct narrow roads, mountain roads, and the like. It can be adopted sometimes.

FIG. 6 is a perspective view of another embodiment having a shape different from that of the drainage culvert shown in FIGS. 2, 3, 4, and 5, and shows two side walls 11 and one end of both side walls 11. The drainage culvert 1 is composed of a connecting member 13 connecting the upper part, and the upper part and the bottom part are both open. The overhang part 5, the guide groove 7, the collecting / draining hole 8 and the like are formed on one side wall 11, Water guided from the guide groove 7, the collecting / draining hole 8 and the like is collected in the cylindrical drainage channel 3 of the drainage culvert 1 and is also collected from the upper open portion and drained. And can be employed when constructing a low-cost road.

[0016]

According to the drainage culvert of the present invention having the above-described structure, an appropriate portion of the outer surface of one of the side walls is bulged to form an overhanging portion, and the one side wall has grooves of various shapes. The collection / drainage holes and the concave ridges are formed, and in the construction of a permeable road consisting of asphalt pavement and permeable pavement, the pavement work is extremely easy and the construction period is shortened. The positional relationship between the drainage culvert and each pavement is maintained without being displaced by vibrations such as earthquakes, and can achieve excellent effects such as being able to exhibit the drainage function regardless of the amount of water such as precipitation. Things.
It is clear that such an effect can be achieved even when applied to various culverts having different shapes.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a drainage culvert of the present invention.

FIG. 2 is a view showing a cross section taken along line AA in the drainage culvert of the present invention shown in FIG. 1;

FIG. 3 is a view showing another embodiment of the present invention having a collection / drainage hole different from the drainage culvert shown in FIG. 2;

FIG. 4 is a view showing another embodiment of the present invention having a concave ridge portion having a shape different from that of the drainage culvert shown in FIG. 2;

FIG. 5 is a perspective view of a cylindrical drainage culvert according to another embodiment.

FIG. 6 is a perspective view of another embodiment of a drainage culvert having an open top and a bottom.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drainage culvert 2 Inner side wall of drainage culvert 3 Drainage channel 4 Cover part 5 Overhang 6 Vertical water channel 7 Water channel 8 Collection / drain hole 81 Branch collection / drain hole 9 Stepped portion 11 Drain culvert Side wall 111 Outside surface of side wall forming stepped portion 12 Bottom plate of drainage culvert 13 Connecting member 100 Permeable pavement 110 Asphalt pavement 200 Boundary surface between permeable pavement and asphalt pavement 300, 310 Recess

Claims (4)

(57) [Claims] An asphalt pavement comprising: a culvert having a gutter channel formed by both side walls, wherein a bulging portion is formed by bulging an appropriate portion of an outer surface of the one side wall so as to form a stepped portion on one side wall. A drainage culvert, characterized in that when constructing a water-permeable road composed of a water-permeable pavement and asphalt pavement, the upper end surface of the overhang is used as a reference plane. 2. A water guide groove is formed at a portion perpendicular to an outer surface of a stepped portion and an upper end surface of a projecting portion, and a plurality of vertical waterways are formed on the outer surface at appropriate intervals. A drainage hole is formed by penetrating the inner surface of the side wall in the headrace channel at the position of the vertical headrace channel, so that rainwater or the like of the permeable road is quickly guided to the gutter channel to be drained. The culvert for drainage according to claim 1. 3. A branch collection / drainage hole is formed so as to communicate with the collection / drainage hole and penetrate the overhanging portion, and a part of rainwater or the like of a permeable road is formed through the branchy collection / drainage hole. The culvert for drainage according to claim 2, wherein the culvert is returned to the ground or the like. 4. A strong joint between an asphalt pavement and a U-shaped culvert is provided on one of the side walls with a concave strip on the side of the overhang.
Or the culvert for drainage according to claim 3.