JPH11200463A - Concrete drainage ditch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce site work, and to inexpensively practice draining pavement work by arranging water passing holes to flow water in a waterway after passing through a draining pavement layer executed in the side part, in either one upper position of the side wall parts integrally connected to both sides of the bottom part. SOLUTION: This concrete drainage ditch 10 has the bottom part 11, the side wall parts 12, 13 integrally continuously connected to both sides of this and the ceiling part 14 to continuously connect these with a cross-sectional circular waterway 15 arranged on the inside. A cutout 16 is arranged on the upper side end of one side wall part 12 to place one side of a walk-roadway block to partition a walk and a roadway. While, another cutout 18 is arranged in an upper end position of the other side wall part 13 so that plural water passing holes 19 connected to the waterway 15 are arranged at a prescribed pitch on the central side. The water passing holes 19 are prevented from being blocked up by sand of a draining pavement layer by putting a wire net on the respective water passing holes 19 at execution work time to thereby obviate execution work of a porous pipe and a bellows pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete drainage gutter disposed on a side of a road or the like on which drainage pavement is provided.

[0002]

2. Description of the Related Art Conventional pavements are impervious to water and, when a large amount of rain falls, there is a problem that water accumulates or flows on the road surface.
Drainage pavement of about 0 to 25% is constructed. In this drainage pavement, since rainwater enters inside and flows to the side, it is necessary to pour it into drainage ditches provided on the side of the road. Arrange a perforated tube with a water hole formed or a bellows tube that can expand and contract in a coil shape, connect the end of this perforated tube or bellows tube to the rising part of the drainage ditch, and run the rainwater flowing through the drainage pavement, It was flowing down the drain.

[0003]

However, in such conventional rainwater treatment of drainage pavement, the construction of perforated pipes and bellows pipes is performed on site, and the workability is extremely poor.
Since the construction period becomes longer and special materials are required,
There was a problem that the economy was poor and the construction cost was high.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a concrete drainage ditch capable of performing inexpensive pavement work with less on-site work.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The concrete drain described in the description has at least a bottom portion and side walls integrally connected to both sides thereof, and in a concrete drain formed with a water channel on the inside, at a position above any one of the side walls. In addition, there is provided a water passage hole through which water passing through the drainage pavement layer constructed on the side flows into the water channel. Further, in the concrete drainage groove according to claim 2, in the concrete drainage groove according to claim 1, the drainage pavement layer is formed on an upper portion of the side wall portion provided with the water passage hole. A notch is formed, and the inlet of the water hole communicates with the notch. According to a third aspect of the present invention, in the concrete drainage groove according to the first or second aspect, a plurality of the water passage holes are provided at a predetermined pitch at an upper position of the side wall portion. And the concrete drainage of the fourth aspect is the first aspect of the invention.
4. In the concrete drainage channel according to any one of the above-described items 3, a ceiling portion connecting the upper portions of the side wall portions connected to both sides of the bottom portion is provided, and a cross section of the water channel has a circular shape and a rounded corner portion. Square or elliptical.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a perspective view of a road using a concrete drainage according to an embodiment of the present invention, FIG. 2 is a perspective view of the concrete drainage, and FIG. 3 is a sectional view of the concrete drainage. 4, FIG. 4 is a plan view of a water drainage hole of the concrete drainage ditch, FIG. 5 is a plan view showing a construction state around the water drainage hole of the concrete drainage ditch, and FIG. 6 uses the concrete drainage ditch. Cross section of the road side,
7A, 7B, and 7C are cross-sectional views of a concrete drainage groove according to a modification of the present invention, and FIGS.
FIG. 9C is a cross-sectional view of a water drain hole of a concrete drainage groove according to a modified example of the present invention, and FIGS. It is a top view of a water hole.

As shown in FIGS. 1 to 3, a concrete drain ditch 10 according to an embodiment of the present invention has a bottom 11,
There are side walls 12 and 13 integrally connected to both sides and a ceiling 14 connecting these, and a water channel 15 having a circular cross section is provided inside. In addition, the bottom part 11 and the side wall part 1
Reinforcement may be pre-arranged on the ceilings 2 and 13 and the ceiling portion 14 so that the entire structure may be made of reinforced concrete, or may be made of non-reinforced concrete.

A notch 16 is formed at the upper end of one side wall 12.
Is provided so that one side of a sidewalk block 17 that separates the sidewalk from the sidewalk can be placed as shown in FIG. On the other hand, another notch 18 is provided at the upper end position of the other side wall portion 13, and at the center side thereof, the water channel 1 is provided inside.
5 are provided with a plurality of water passage holes 19. In this embodiment, as shown in FIG.
The entrance width is 30 mm and the exit width is 20 when viewed in plan.
mm, the length of an ellipse when viewed in plan is 183 mm, and formed at a pitch of about 330 mm.

The lower corners of the side walls 12 and 13 have inclined surfaces 20 and 21. As shown in FIG. 3, the height h of the concrete drainage groove 10 is 440 mm and its width w is 420 mm. Thus, the length is 2 m, and the diameter of the internal water channel 15 is 300 mm. A sealing member (not shown) such as an O-ring is provided at both ends of the concrete drainage groove 10 if necessary.
Are provided as a left-right pair. The connecting portion 22 has a well-known structure, and a connecting fitting is provided at this portion, and generally connects the adjacent concrete drainage grooves 10 with bolts and nuts.

In FIG. 1, concrete drainage grooves 25 provided with inspection holes 24 at the upper center of the ceiling 23 are arranged at appropriate intervals. In this concrete drainage groove 25, a portion provided with the inspection hole 24 is not provided with the water passage hole 19, but the other portion is provided with the concrete drainage groove 10.
And basically the same structure. The inspection hole 24 of the concrete drainage groove 25 is covered with a metal porous lid (generally called grating) 26. The inspection hole 24 is provided with the porous lid 2.
A step of a well-known structure having a thickness into which 6 is fitted is formed on the periphery.

Therefore, the concrete drain ditch 10,
In the case of constructing a road using 25, concrete drainage grooves 10, 25 are buried in predetermined positions. Then, the end of the sidewalk block 17 is placed in the notch 16 above the side wall 12 on the side of the human road. On the other hand, concrete drainage ditch 1
The upper surfaces of the ceiling portions 14 at 0 and 25 are made to coincide with the upper surface of the roadway. As shown in FIG. 1 and FIG. 6, the upper surface of the base layer 27 of the roadway matches the height of the bottom surface of the notch 18. here,
The base layer 27 is made of non-permeable pavement (for example, asphalt pavement).

Next, as shown in FIGS. 5 and 6, an appropriate wire mesh (mesh) 28 is put on each of the water holes 19. This is because the sand or the like of the drainage pavement layer 29 to be constructed next is
This is to prevent the water flow hole 19 from entering and closing the water passage hole 19. The wire netting 28 may be buried in advance on the water passage hole 19 or may be a band-shaped wire mesh 28 having a width across the water passage hole 19.
May be prepared in advance. In this state, the drainage pavement layer 29 is constructed. The drainage pavement layer 29 uses relatively large gravel to reduce the porosity of the pavement to 20 to 25.
% So that water flows inside. This drainage pavement layer 29 is made of a concrete drain ditch 1.
To the height of the ceiling 14 at 0, 25,
The surface heights of the concrete drain grooves 10 and 25 and the drainage pavement layer 29 can be matched. In addition, as shown in FIG. 1, a concrete drainage groove 30a having only the inspection hole 24 having no water passage hole may be arranged at an appropriate place. In this case, since there is no water hole,
Preferably, it has a minimum length.

Although the concrete drains 10 and 25 according to the above embodiment have been specifically described using numerals for easy understanding, the present invention is not limited to these numerals. Modifications that do not change the gist of the present invention are also included in the present invention. Hereinafter, a concrete drainage groove according to a modified example of the present invention will be described with reference to FIGS. 7 to 9.

FIG. 7 (A) shows a concrete drainage groove 30 having a rounded corner and a rectangular cross section. A notch 31 is provided on one side and a water passage hole 32 is provided. FIG. 7B shows a concrete drainage groove 33 having a hexagonal cross section on the outer periphery, a notch 35 is formed at the upper part of the bent side wall part 34, and a water hole 36 is formed at that part. ing. In FIGS. 7A and 7B, two types of water holes 32 and 36 are provided at different angles. FIG. 7C shows a concrete drainage groove 38 having a U-shaped groove 37 whose upper part is open, and a water passage hole 40 is formed at an upper position of the side wall part 39. In this case, no cutout is provided in the side wall portion 39.

FIGS. 8A to 8C show modified examples of the water passage hole. FIG. 8A shows the water passage hole 19 at the bottom of the notch 18 as described above. Are formed, and FIG.
In (B), a corner portion of the side wall portion 41 is cut off diagonally to form a water passage hole 42. In FIG. 8C, a water passage hole 44 is formed directly above the side wall 43.

FIGS. 9 (A) to 9 (C) show examples of water passage holes. In FIG. 9 (A), the water passage holes 4 formed of elongated holes are shown.
9 (B) shows a water passage hole 46 formed of a round hole formed at a predetermined pitch, and FIG. 9 (C) shows a water passage hole 47 formed of an elliptical hole formed at a predetermined pitch. Have been. These water holes may be straight or tapered, but the taper is characterized in that molding is easier. The cross section of the water channel may be elliptical.

[0016]

The concrete drainage groove according to any one of claims 1 to 4, is a water hole through which water passing through a drainage pavement layer constructed on the side flows into a waterway at an upper position of one of the side walls. Since the concrete drainage channel with water holes can be manufactured in advance at the factory, the construction of perforated pipes and bellows pipes is not necessary as in the past, and as a result, the construction is extremely simple There is an advantage of becoming. Therefore, this makes it possible to construct inexpensive and short-term drainage pavements using concrete drains. In particular, in the concrete drainage groove according to claim 2, a notch portion in which a drainage pavement layer is formed is formed in an upper portion of the side wall portion provided with the water passage hole. Since the entrance of the water hole is connected, it is easy to know the construction level of the foundation layer placed below the drainage pavement layer, and it is also easy to know the level of the drainage pavement layer. Is improved. Claim 3
In the concrete drainage described, a plurality of water holes are provided at a predetermined pitch at an upper position of the side wall portion, so that the strength of the concrete drainage groove is lower than when a continuous water hole is provided. improves. In addition, by providing water holes at an appropriate pitch, drainage of drainage pavement can be enhanced. Further, in the concrete drainage groove according to claim 4, a ceiling portion connecting the upper portions of the side wall portions connected to both sides of the bottom portion is provided, and the cross section of the water channel is circular,
Since the corner has a rounded square or elliptical shape, it is possible to provide a concrete drainage groove having sufficient strength.

[Brief description of the drawings]

FIG. 1 is a perspective view of a road using a concrete drainage ditch according to an embodiment of the present invention.

FIG. 2 is a perspective view of the concrete drainage ditch.

FIG. 3 is a sectional view of the concrete drainage ditch.

FIG. 4 is a plan view of a water passage hole portion of the concrete drainage ditch.

FIG. 5 is a plan view showing a construction state around a water passage hole of the concrete drainage ditch.

FIG. 6 is a sectional view of a road side portion using the concrete drainage ditch.

FIGS. 7A, 7B, and 7C are cross-sectional views of a concrete drainage groove according to a modification of the present invention.

8 (A), (B), and (C) are cross-sectional views of a water passage hole of a concrete drainage groove according to a modification of the present invention.

FIGS. 9A, 9B, and 9C are plan views of water holes of concrete drainage grooves according to a modified example of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Drainage groove made of concrete 11 Bottom part 12 Side wall part 13 Side wall part 14 Ceiling part 15 Waterway 16 Notch 17 Pedestrian block 18 Notch 19 Water flow hole 20 Inclined surface 21 Inclined surface 22 Connection part 23 Ceiling part 24 Inspection hole 25 Concrete Drainage groove 26 Porous lid 27 Base layer 28 Wire mesh 29 Drainable pavement layer 30 Concrete drainage groove 30a Concrete drainage groove 31 Notch 32 Water hole 33 Concrete drainage groove 34 Side wall 35 Notch 36 Water hole 37 U-shaped Groove 38 Concrete drainage groove 39 Side wall portion 40 Water passage hole 41 Side wall portion 42 Water passage hole 43 Side wall portion 44 Water passage hole 45 Water passage hole 46 Water passage hole 47 Water passage hole

Claims (4)

[Claims] 1. A concrete drainage ditch having at least a bottom portion and side walls integrally connected to both sides thereof, and a water channel formed inside, wherein a side portion is provided at an upper position of any one of the side walls. A concrete drainage ditch provided with a water hole through which water passing through a drainable pavement layer constructed in the water channel flows into the waterway. 2. A notch portion in which the drainage pavement layer is formed is formed at an upper portion of the side wall portion provided with the water passage hole, and the notch portion has an inlet for the water passage hole. The concrete drainage ditch according to claim 1, wherein the drainage is in communication. 3. The concrete drainage groove according to claim 1, wherein a plurality of the water passage holes are provided at a predetermined pitch at an upper position of the side wall portion. 4. A cross-section of the water channel having a circular shape, a quadrangular shape with rounded corners, or an elliptical shape, wherein a ceiling portion connecting the upper portions of the side wall portions connected to both sides of the bottom portion is provided. Item 4. The concrete drainage groove according to any one of Items 1 to 3.