JP2003138637A - Drainage control block for road side ditch, and method for discharging rainwater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent rainwater, flowing into a side ditch, from immediately flowing down, prevent a decrease in the groundwater level of the whole neighborhood, and surely discharge drainage into the side ditch of a permeable pavement without using a side ditch block which is provided with a drainage hole. SOLUTION: Drainage blocks for the road side ditch, which are provided with notches for outflow, are incorporated at appropriate intervals between the side ditch blocks constituting the side ditch of the pavement, in lower and base parts, on the side of a sidewalk, of a frame-like body in which the front and rear base parts for placing the side ditch blocks are provided in the lower part in a swelled state. In addition, a notch for inflow and a blockout for surface drainage are provided in an upper part on the side of a roadway, so that the rainwater can be collected on the permeable pavement.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention receives drainage on the side of a roadway and temporarily stores it in a gutter of a paved road.
The present invention relates to a drainage control block for a road gutter, which can have a gentle drainage function to the inside of a sidewalk-side base. The present invention also relates to a road gutter drainage control block having a function of receiving rainwater or surface water blocked by a water cut layer of a water-permeable pavement.

[0002]

2. Description of the Related Art Currently, most of the roads on which cars pass are paved. Most of the paved roads are provided with gutters on both sides or one side for receiving rainwater on the road surface and discharging it. As a result, the rain on the road may flow downstream and the groundwater level around the area may drop gradually. In addition, there is a problem that a large amount of rainwater that has flowed into the gutter at the time of heavy rain flows down and overflows downstream.

On the other hand, recently, water-permeable pavement is being adopted for various roads including highways. This is because the water-permeable pavement is extremely effective in preventing slip accidents and water splashes during rainfall, and also has the effect of reducing noise, and the construction area is gradually increasing. By the way, even if it is a permeable pavement, if rainwater that falls on the road permeates the inside of the foundation as it is, it will weaken the foundation, so a water cut layer is provided between the permeable pavement and the foundation. . Then, the rainwater blocked by this water cutoff layer flows into the gutter. Conventionally, to accept this rainwater,
It has been practiced to open a rainwater collecting hole in the upper part of the gutter block that constitutes the gutter.

[0004]

As described above, even if the pavement is permeable, rainwater on the road eventually flows into the gutter. Further, at present, the water-permeable pavement is only a part of the road as a whole, and therefore, it is difficult to make a die for a gutter block having a hole for the water-permeable pavement in terms of cost. In addition, it takes time and effort to form a hole in each of the gutter blocks, which is aesthetically problematic.

[0005]

Therefore, the present inventor has accomplished the present invention as a result of intensive studies in view of the above problems, and is characterized in that it is incorporated in a part of a gutter of a paved road. The point is that the drainage control block for the road gutter has a rainwater temporary storage function and a rainwater collection function corresponding to a permeable pavement.

That is, the first feature of the drainage control block for a road gutter of the present invention is that a weir plate of an appropriate height is provided in the lower part of the frame-shaped main body, and the side wall of the frame-shaped main body flows out to the sidewalk-side lower part and the base part. It has a notch for use. The dam plate temporarily stores the rainwater collected in the gutter or a part of the rainwater so that the rainwater does not immediately flow down and the downstream side of the gutter does not overflow. At the same time, it has a drainage function that allows this temporarily stored rainwater to be slowly released from the outflow notch into the inside of the sidewalk-side base. This drainage will maintain the groundwater level on the sidewalk.

A second feature of the drainage control block for a road gutter of the present invention is that an inflow cutout, a surface drainage box removal, or both are provided in the upper part of the frame-shaped main body on the roadway side.
The inflow notch receives the surface water of the permeable pavement, and the surface drainage box receives the rainwater that has permeated the permeable pavement and is blocked by the water cut layer. As a result, a conventional gutter block without rainwater collection holes can be used for the gutter of the water-permeable paved road, and a rise in construction cost can be prevented. Of course, it is naturally possible to use a gutter block dedicated to a water-permeable paved road provided with holes for collecting rainwater.

Further, as one of the features of the road gutter drainage control block of the present invention, since the base for mounting the end of the gutter block is bulged in the lower part, the road gutter drainage control block With proper installation, the gutter block can be laid very easily and accurately.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the drainage block for a road gutter of the present invention will be described in more detail with reference to the drawings. Figure 1
An example of the drainage block for road gutters which concerns on this invention is shown. This road gutter drainage block 1 has a frame-shaped main body 4 in which front and rear bases 2 and 3 for mounting the gutter block are bulged in the lower part.
And a weir plate 5 having an appropriate height provided in the lower part of the frame-shaped main body 4. Further, an outflow notch 6 is provided in the lower side of the frame-shaped body 4 on the sidewalk side, and a lower outflow notch 7 is provided in the bases 2 and 3.

FIG. 2 shows an example of a gutter block 8 used in combination with the drainage block 1 for a road gutter.
Reference symbols A ′, B ′, and C ′ in FIG. 2 are reference symbols A and B in FIG. 1, respectively.
It is assembled in conformity with B and C, and is installed on the base portion 3 of the road gutter drainage block 1 in this direction. Similarly, another gutter block 8 is installed on the base portion 2. FIG. 3 is a plan view of the road gutter drainage block 1 and the gutter block 8 installed in combination in this way. Reference numeral 9 in FIG. 2 is a groove lid.

Further, in the drainage block 1 for a road gutter of this embodiment, as shown in FIGS. 1 and 3, an inflow cutout 10 and a surface drainage box vent 11 are provided in the upper part of the frame-shaped body 4 on the roadway side. Has been. Therefore, although the gutter block 8 is not provided with a rainwater collecting hole, it may be used in combination with a gutter block having a rainwater collecting hole.
In FIG. 3, reference numerals 91 and 92 are notches for rainwater inflow provided in the groove lid 9, but the notches make the inflow of rainwater into the side grooves smoother.

The road gutter drainage block 1, as shown in FIG. 4, is placed on a foundation 12 composed of a foundation concrete 12a, a foundation crushed stone 12b and a floor mortar 12c. Also, the gutter block 8 is supported at one end on the base portion 2 and the base portion 3 of the road gutter drainage block 1, respectively, and at the same time, the foundation 1
The gutter 13 is completed by being installed on the second side. As a result, the outflow port 14 is formed by the outflow notch 6 at the sidewalk lower part of the frame-shaped main body, the lower outflow notch 7 at the base, and the end faces and end bottom faces of the side groove blocks 8 on both sides.

FIG. 5 is a sectional view of this combined state. On the side of the road, the water permeability of Alfalto 1 on the base 15
6, the nonwoven fabric 17, the sand layer 18, and the water-permeable rocking block 19 is laid on the uppermost layer. Then, the rainwater on the side of the road flows into the side groove 13 from the inflow notch 10 and the surface drainage box 11 of the frame-shaped main body 4.

When a large amount of rainwater flows into the gutter 13, it flows downstream beyond the weir plate 5, but the rainwater 20 dammed by the weir plate 5 gradually permeates from the outlet 14 into the sidewalk-side base. To go.

The frequency of incorporation of the road gutter drainage control block 1 in the gutter 13 is arbitrary depending on the inclination of the gutter, the road width and other circumstances. However, if the slope is steep, see Figure 6.
Since the amount of rainwater 20 blocked by the dam plate 5 is small as shown in FIG.
You may make it incorporate the drainage control block 1 for road gutters for every.

In the above example, the inflow notch 10 and the surface drainage box 11 are provided. However, even a road gutter drainage block lacking these has a rainwater collecting hole as a gutter block. If combined with the provided ones, similar water collection and storage effects can be realized. Also, the inflow notch 10
A combination of a road gutter drainage block having a surface drainage box 11 and a gutter block having a rainwater collecting hole may be used.

FIG. 6 shows another example of the gutter block 21 which can be used in combination with the drainage control block 1 for a road gutter of the present invention. This gutter block 21 has a structure in which the gutter block 8 shown in FIG. 2 is turned upside down, and is of a type called a gate-type gutter block, and the bottom of the gutter is formed by casting concrete in situ. To do. Also in this gutter block 21, the reference numeral A ″,
B ″ and C ″ are assembled according to the reference numerals A, B and C of FIG. 1, respectively. Reference numeral 22 is a groove lid.

[0018]

As described above in detail, the drainage control block for a road gutter of the present invention has a frame-shaped main body in which the front and rear bases for mounting the gutter block are bulged downward, and the inside of the frame-shaped main body. Consisting of a weir plate of appropriate height provided at the bottom of the
Outflow cutouts are provided on the lower side and the base of the frame body on the sidewalk side.

Therefore, since a part of the rainwater that has flowed into the gutter is stored in the gutter, it is possible to prevent the rainwater from flowing down at once and overflowing the downstream side of the gutter. In addition, since the stored rainwater is slowly released inside the footpath-side foundation, it has the effect of maintaining the groundwater level in the entire area.

Further, in the drainage control block for a road gutter of the present invention, an inflow notch, a surface drainage box remover, or both are provided at the upper part of the frame-shaped body on the roadway side. As a result, there is an advantage that rainwater can be collected on a permeable paved road without using a gutter block dedicated to the permeable paved road having a rainwater collecting hole.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a road drainage control drainage block according to the present invention.

FIG. 2 is a perspective view showing an example of a gutter block.

FIG. 3 is a combined plan view showing a state in which a drainage control block for a road gutter and a gutter block of the present invention are installed.

FIG. 4 is a side view showing a combination of the drainage control block for a road gutter and the gutter block according to the present invention.

FIG. 5 is a cross-sectional view showing a state in which a drainage control block for a road gutter and a gutter block of the present invention are installed.

FIG. 6 is a vertical sectional view partially showing an example of the side groove of the present invention.

FIG. 7 is a perspective view showing another example of a gutter block.

[Explanation of symbols]

1 Drainage control block for road gutters 2 base 3 base 4 Frame-shaped body 4a Lower side of the frame body on the sidewalk 5 dam plate 6 Outflow notch 7 Lower outflow notch 8 gutter block 9 groove lid 10 notch for inflow 11 Box for surface drainage 12 basics 12a Foundation concrete 12b Foundation crushed stone 12c floor mortar 13 gutter 14 Outlet 15 foundation 16 Permeability Alfalto 17 Non-woven fabric 18 sand layers 19 Water-permeable rocking block 20 Stored rainwater 21 gutter block 22 Groove lid

Claims (4)

[Claims] 1. A frame-shaped main body, in which front and rear bases for mounting the gutter blocks are bulged in a lower portion, which are incorporated at appropriate intervals between the gutter blocks forming the gutters of the paved road. A drainage control block for road gutters, which comprises a weir plate of an appropriate height provided in a lower portion inside the frame-shaped main body, and has a side wall-side lower portion and a base portion of the frame-shaped main body provided with an outflow notch. . 2. An inflow notch, a surface drainage box remover, or both are provided in the upper part of the frame-shaped body on the side of the roadway, which is incorporated into a ditch of a water-permeable paved road. Drainage control block for road gutters. 3. A weir plate provided in a frame-shaped main body of a drainage control block in which rainwater on a paved road or a water-permeable paved road leading to a gutter or a part thereof is incorporated at an appropriate interval between gutter blocks. A method for draining rainwater on a paved road, characterized in that the rainwater is temporarily stored by the above method and the rainwater that is temporarily stored is discharged into the inside of the sidewalk-side base through a notch for outflow provided in the lower portion of the drainage control block on the sidewalk side. 4. Rainwater on a water-permeable paved road is discharged through a notch for inflow or a box for surface drainage provided in the upper part of the frame-shaped main body road side of the drainage control block for the road gutter, or with the drainage control block for the road gutter. The method of draining rainwater on a paved road according to claim 3, wherein the drainage water is guided into the gutter through a rainwater collection hole provided in an upper portion of the gutter block used in combination.