JPH06336703A - Drainable pavement and cleaning thereof - Google Patents

Abstract

PURPOSE:To sufficiently drain and remove dust or the like on a pavement, by laminating a water-impermeable layer and a drainable layer paved with a mixture on a foundation bed and laying down perforated pipes between the water-impermeable layer and the mixture layer to collect water at respective joints. CONSTITUTION:A cut-off valve is fitted to the end of a plurality of perforated drain pipes 5 which are arranged between a water-impermeable layer 2 and a drainable layer 3 paved with a mixture in parallel with a road and at the side edges thereof. And a catch basin opened on the ground is installed at respective joints of the perforated pipes having opposite cut-off valves. When cleaning the road, the cut-off valves at the ends or perforated pipes are closed and high-pressure washing water is splayed to peel off dust 7 or the like from the road surface and infiltrate it together with the water into the mixture layer 3. Next, a high vacuum pump 9 is operated and the front end thereof is put close to the road surface water 8 together with the water. The dust 7 and the washing water 8 left in the perforated pipes 5 are collected in the catch basin from the removed cut-off valves to complete the washing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage pavement used for intersections of main roads that require drainage and sound absorption, highways for living areas, and drainage for removing dust and the like adhering to the road surface. The present invention relates to a method for cleaning a pavement.

[0002]

2. Description of the Related Art A drainage pavement road composed of an impermeable layer a and a drainage pavement mixture layer b (pavement) above it (FIG. 7).
Uses the pores on the surface and inside of the pavement made of open-grained pavement material to drain daily rainwater while allowing it to permeate into the pavement without staying on the road surface. It is an excellent paved road that has the function of suppressing the generation of running noise by letting the compressed air generated inside escape into the gap.

However, dust, sand, dust, etc. (hereinafter referred to as "dust") adheres to the surface or inside of the drainage pavement due to the accumulation of time, the load of traffic vehicles, etc. Occurs. In this case, as a method of removing dust and the like to wash the paved road, a method of washing the paved road surface with high-pressure washing water c as shown in a simplified form in FIG. 7 or a road as shown in FIG. Using a washing machine such as the washing vehicle d, sprinkling the washing water c from the sprinkling section e in front of the washing machine toward the paved road, and the washing water c and dust etc. sprinkled first from the suction section f in the rear of the washing car d. Have been proposed.

[0004]

The clogging of the drainage pavement is to reduce the voids in the pavement because fine particles of dust and the like enter between the aggregates in the pavement and adhere. It can constantly occur in the environment of road pavement. However, if the dust or the like cannot be reliably removed, the excellent functions of the drainage paved road such as the drainage of rainwater and the absorption of traveling noise cannot be effectively exhibited.

In the high-pressure cleaning method shown in FIG. 7, the surface of the pavement is cleaned with the high-pressure water c, so that the dust can be removed without damaging the pavement. There is a problem that it penetrates into the pavement and accumulates as it is. Further, in the method using the cleaning machine of FIG. 8, when the sprayed cleaning water c does not penetrate due to dust or the like adhering to the surface of the pavement, or even if it penetrates, the cleaning water c spreads horizontally in the pavement. Therefore, there is a problem that the cleaning water c and the dust cannot be well sucked by the suction part f, and the cleaning effect is not good, and in the end, the function of the drainage paved road cannot be sufficiently restored.

Therefore, an object of the present invention is to sufficiently perform the function of draining daily rainwater, and to reliably remove dust and the like adhering to the surface and the inner surface of the pavement body to drain the drainage function of the drainage paved road. Another object of the present invention is to provide a drainage pavement and a method for cleaning the same, which can recover and effectively maintain the sound absorption function.

[0007]

As a means for solving the above-mentioned problems, a drainage paved road according to the present invention is impermeable to water on a base 1 as shown in FIGS. 1 to 4 of the drawings. A layer 2 is laid, a drainage pavement mixture layer 3 having a predetermined thickness (hereinafter, the impermeable layer 2 and the drainage pavement mixture layer 3 are also referred to as a pavement) is laid on the layer 2, and a road is formed. Stopcock 4 for drainage and capable of stopping washing water etc. on the side edge of
A plurality of attached perforated pipes 5 are arranged so as to extend over the impermeable layer 2 and the drainage pavement mixture layer 3, and the perforated pipes 5
The water collecting basin 6 is installed in each joint part of the above.

The method for cleaning a drainage pavement according to the present invention is as follows: a) An impermeable layer 2 is laid on a base 1, and further on it. The drainage pavement mixture layer 3 having a predetermined thickness is laid on the side wall of the road, and the perforated pipe 5 for drainage is provided at the side edge portion of the road with the water stopcock 4 capable of stopping the wash water 8 and the like. It should be installed so as to straddle the layer 2 and the drainage pavement mixture layer 3 (Fig. 5), b) With the end of the perforated pipe 5 closed by the water stopcock 4 (see Fig. 3), on the road surface. The adhered dust 7 and the like are separated from the road surface by washing with high pressure washing water 8,
Permeating and filling the drainage pavement mixture layer 3 together with the wash water 8 (FIG. 5), c) The wash water 8 filled in the drainage pavement mixture layer 3 by the high-pressure vacuum device 9 is dust 7, etc. And suctioning to complete the cleaning (FIG. 6).

The above-mentioned perforated pipe 5 is also provided with a water injection valve 10 capable of supplying water (FIG. 3).

[0010]

In rainy weather, even if rainwater permeates and stays in the pavement of a drainage pavement, the rainwater is drained through the perforated pipes 5 (Figs. 4 and 1) at the side edge of the road. There is no worry that the body will become saturated and rainwater will overflow onto the road surface. When removing dust and the like adhering to the surface of the drainage pavement and the like for cleaning, first, with the water stop plug 4 attached to the perforated pipe 5 (Fig. 3), high-pressure cleaning is performed together with the cleaning water 8. Dust or the like is once permeated into the drainage paving mixture layer 3 (FIG. 5). Since cleaning is performed with high-pressure water, dust and the like adhering to the road surface can be surely permeated through the aggregates in the drainage pavement mixture layer 3. Also, the high pressure cleaning water 8 is
By contacting the aggregate or dust accumulated inside in the drainage pavement mixture layer 3, the dust can be easily separated (separated). When the washing water 8 is insufficient, the water is regurgitated into the perforated pipe 5 by using the water injection valve 10 to replenish it, and dust or the like is mixed into the washing water 8 to fill the drainage pavement mixture layer 3 with water. (Figure 3). After that, since the high pressure vacuum device 9 absorbs in this filled state, dust and the like can be reliably removed and collected together with the cleaning water 8 (FIG. 6). In other words, by backwashing, the dust etc. adhering to the pavement surface can be finally collected and the drainage pavement can be cleaned cleanly, and the original drainage function and sound absorption function of the drainage pavement can be restored and effective. Can be maintained at.

[0011]

EXAMPLES Next, examples of the present invention shown in the drawings will be shown. Figure 1
4 is an enlarged view of a side edge cross section of the drainage paved road generally shown in FIG. 4. The impermeable layer 2 is laid on the base 1, and the drainage pavement mixture layer 3 having a thickness of about 50 to 100 mm is further laid on the impermeable layer 2. The base 1 is composed of recycled crushed stone and grain-crushed stone in the upper layer. For the impermeable layer 2, coarse-grained asphalt concrete is used. Although illustration is omitted, asphalt stabilization treatment is usually applied between the base 1 and the impermeable layer 2. Drainable pavement mix layer 3
As the material, for example, a water-permeable asphalt mixture obtained by adding a thermosetting resin to asphalt and performing a mixing treatment is preferably used.

For drainage, it is arranged over the impermeable layer 2 and the drainage pavement mixture layer 3 in parallel with the road and along the side edge of the road (left side in FIG. 1, upper side in FIG. 4). A required number of perforated pipes 5 (having a diameter n of about 50 to 150 mm) are installed (FIG. 4). The length of one piece is about 30 to 50 m. As shown in FIG. 2, a plurality of through holes 5a ... Is formed on the outer peripheral surface of the perforated pipe 5. Since this perforated pipe 5 is used for draining rainwater that permeates into the pavement on a daily basis in rainy days, the diameter and length of these perforated pipes 5, the size and number of through holes 5a, etc. It is said that the amount of drainage calculated based on meteorological data such as rainfall intensity and drainage pavement area can be collected. The height m of the perforated pipe 5 shown in FIG. 1 in contact with the drainage pavement mixture layer 3 is 1/2 or more of the diameter n of the perforated pipe 5. Dust and the like that permeate into the drainage pavement mixture layer 3 flow into the perforated pipe 5, and rainwater that remains in the impermeable layer 2 also flows in to be drained, and conversely, the drainage pavement mixture layer 3 This is because it is possible to easily supply water to the inside. Since the material of the perforated pipe 5 is installed in the asphalt pavement, the construction temperature of the asphalt mixture (160 to 1
It is a property that does not change with respect to 80 ° C.) and does not break even when a traffic load is applied (for example, made of vinyl chloride). Then, on the outer circumference of the perforated pipe 5, concrete 7 for fixing the perforated pipe is placed in a range excluding the upper surface portion and the inside portion of the road. This is because the perforated pipe 5 is restrained so as not to move due to a load or the like and protected, and water leakage is prevented.

In addition, at the end opening of the perforated pipe 5,
As shown in FIG. 3, the stopcock 4 capable of stopping the washing water 8 and the like
Is removably attached, and water collecting basins 6 that open to the road surface are installed at the joints of the perforated pipes 5 and 5 where the water stop plugs 4 and 4 face each other (Fig. 3B, Fig. 3B). 4). This is because it is possible to sufficiently drain water under all conditions without being affected by the length of the road and the vertical gradient. A water injection valve 10 and a water injection hose 11 connected to the water injection valve 10 are attached to the upper side surface of the end of the perforated pipe 5 (FIG. 3A). This is because it is possible to forcibly supply water from the outside.

Therefore, according to this drainage pavement, even if rainwater permeates into the pavement due to daily rainfall, it is smoothly drained through the perforated pipe 5 at the side edge of the road. It effectively exhibits its original drainage function, and there is no risk of rainwater flooding the road. Next, a cleaning method when dust or the like adheres to the drainage pavement having the above configuration will be specifically described below.

First, with the end of the perforated pipe 5 closed by the water stopcock 4 (FIG. 3A), high-pressure washing water 8 is jetted toward the surface of the paved road to wash it, and dust adhering to the road surface is washed. 7 and the like are peeled off from the road surface and permeated into the drainage pavement mixture layer 3 together with the washing water 8 (FIG. 5). Since cleaning is performed with high-pressure water, dust and the like stays between the aggregates in the drainage pavement mixture layer 3. The wash water 8 also separates aggregates and dust accumulated inside the drainage pavement mixture layer 3. Since the end of the perforated pipe 5 is closed by the water stopper 4, the wash water 8 and dust that have flowed into the perforated pipe 5 do not unnecessarily flow out (FIG. 3B). .
When the amount of the washing water 8 is insufficient, a drainage hose 11 connected to the water injection valve 10 is used by a water dispenser on the ground (not shown) (FIG. 3A) to bring the water into the perforated pipe 5. Can be regurgitated and replenished. Thus, the drainage pavement mixture layer 3 in a state where dust and the like are mixed in the wash water 8
Fill the inside (see Fig. 6).

Next, the hose tip of the high-pressure vacuum device 9 shown in a simplified manner in FIG. 6 is made substantially vertical to approach the road surface. By operating the high-pressure vacuum device 9 to suck the cleaning water 8 filled in the drainage pavement mixture layer 3, dust and the like in the cleaning water 8 are also sucked and collected. Further, the dust and the wash water 8 left in the perforated pipe 5 are collected and collected in the water collecting basin 6 by removing the water stopcock 4. Thus, the dust and the like are surely removed and collected, the washing of the drainage pavement is completed, and the excellent functions of the drainage pavement such as drainage and sound absorption are effectively restored and maintained.

[0017]

EFFECTS OF THE INVENTION According to the drainage pavement and the method of cleaning the same according to the present invention, drainage during daily rainwater is reliably performed through the perforated pipe 5, and the function of the drainage pavement is fully exerted. In addition, the dust etc. adhering to the surface of the pavement can be reliably removed to restore the function of the drainage pavement.
Contribute to maintenance. This means that even if there is a sudden rainfall, drainage inside the pavement will be carried out smoothly and the pavement will not be saturated easily.Therefore, rainwater will not overflow on the road and the slip resistance value of the road surface will decrease. Is suppressed and contributes to the improvement of traffic safety. In addition, as an effect that water can flow into the pavement, snow accumulated on the pavement surface in cold regions becomes easy to melt by contacting the water in the pavement, making it difficult for the pavement surface to freeze. It also helps prevent freezing.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view showing a side edge portion of a drainage paved road.

FIG. 2 is a perspective view of a perforated pipe.

FIG. 3A is an enlarged view showing an end portion of a perforated pipe, and B is a sectional view showing a joint portion of the perforated pipe.

FIG. 4 is a plan view of a drainage paved road.

FIG. 5 is a main process diagram of a method for cleaning a drainage paved road.

FIG. 6 is a main process diagram of a method for cleaning a drainage paved road.

FIG. 7 is a cross-sectional view showing a conventional example.

FIG. 8 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 1 Base 2 Impermeable Layer 3 Drainable Pavement Mixture Layer 4 Water Stopcock 5 Perforated Pipe 6 Water Collecting Tank 7 Concrete for Perforated Pipe Fixing 8 Wash Water 9 High Pressure Vacuum Device 10 Water Injection Valve

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeaki Imamura 8-21-1, Ginza, Chuo-ku, Tokyo Incorporated Takenaka Road

Claims (3)

[Claims] 1. A water-impermeable layer is laid on a base, and a drainage paving mixture layer having a predetermined thickness is laid on the water-impermeable layer. A plurality of perforated pipes with a water stopcock capable of stopping water are installed in an arrangement extending over the impermeable layer and the drainage pavement mixture layer, and a water collecting basin is installed at each joint part of the perforated pipe. Drainage paved road characterized by the presence of 2. A) An impermeable layer is laid on a base, and a drainage paving mixture layer having a predetermined thickness is further laid on the impermeable layer. Installing a perforated pipe with a water-repellent stopcock in an arrangement spanning the impermeable layer and the drainage paving mixture layer, b) with the end of the perforated pipe closed with a stopcock,
Dust and the like adhering to the road surface is washed from the road surface by washing with high-pressure washing water, and is permeated into the drainage pavement mixture layer together with the washing water to be filled, c) Drainage pavement with a high-pressure vacuum device A method for cleaning a drainage paved road, comprising: sucking the cleaning water filled in the mixture layer together with dust and the like to complete the cleaning. 3. A drainage paved road and a method for cleaning the same, wherein the perforated pipe according to claim 1 or 2 is provided with a water injection valve capable of supplying water.