JP2000319803A - Water permeable pavement slab - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve such defects that slip accidents or rear-end collision accidents are apt to be brought about because rainwater is accumulated on a road face in a road where precast concrete slabs are laid. SOLUTION: A pavement slab 1 in which water-permeable paving layers 3 are laminated so as to form a horizontal upper face is laid on a concrete base 2 provided with a slanting face 5 forming a downslope toward a drain 4 on the upper face of the base. In this way, an easy drainable road can be easily constructed in a short time. In a road constructed by continuously laying the pavement slabs, rainwater is led to permeate the water permeable pavement layer 3 and securely flow down from the slanting face 5 on the concrete base 2 to the drain 4 and discharged therefrom. The water discharged from respective pavement slabs 1 can be easily collected and disposed of.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a permeable pavement plate which is continuously laid on a pavement surface of a road to improve drainage of the road surface during rainfall and thaw.

[0002]

2. Description of the Related Art In general, road pavement work involves placing concrete on the excavated and compacted roadbed, leveling its surface and then curing it, or placing asphalt and casting it with a road roller. The road surface is created by uniform pressing.

[0003] However, such a construction using cast-in-place concrete or asphalt requires a process such as curing and hardening after setting the material and leveling the surface, resulting in a problem that the construction period becomes longer. .

[0004] Conventionally, pavement work has been carried out to shorten the construction period by continuously laying precast concrete slabs manufactured in a factory. However, conventional road pavement slabs made of precast concrete are integrally formed of concrete. And had no water permeability.

[0005]

A problem to be solved is that water is accumulated on the road surface during rainfall on a road on which a precast concrete slab is laid, which easily causes a slip accident, a rear-end collision accident and the like.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the present invention provides a concrete base having an upper surface provided with a slope inclined downward toward a drainage portion, so that the upper surface is horizontal. By making the paving slab a laminate of permeable pavement material on the road, rainwater can pass through the permeable pavement material on the road created by continuously laying this pavement plate, and drainage from the slope on the concrete base This ensures that the water discharged from each pavement plate can be collected and treated easily.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A pavement slab is formed in a square plate shape from a concrete base and a layer of water-permeable pavement material such as water-permeable asphalt laminated on the concrete base so that the upper surface becomes a horizontal surface.

[0008] The concrete base is provided with an inclined surface having a downward slope toward the drainage portion on the upper surface thereof. Rainwater that has passed through the permeable pavement material is surely drained and discharged from the inclined surface to the drainage portion. The discharged effluent can be easily collected and treated.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A pavement slab 1 is formed in a square plate shape from a concrete base 2 formed of reinforced concrete and a permeable pavement material layer 3 such as permeable asphalt laminated on the concrete base 2 so that the upper surface thereof is horizontal. ing.

The concrete base 1 is provided with an inclined surface 5 having a downward slope toward the drain portion 4 on the upper surface thereof, and the rainwater that has passed through the permeable pavement layer 3 is reliably discharged from the inclined surface to the drain portion. In addition, the water discharged from each paving slab 1 can be reliably collected and easily drained.

In the first embodiment shown in FIGS. 1 and 2,
The inclined surface 5 of the concrete base 2 is formed from one side edge to the other side edge on the opposite side. By laying the pavement slab 1 back and forth in series, a series of drainage parts 4, 4,. Are formed, and by installing drainage grooves such as U-shaped grooves along the drainage portions 4, 4,..., Permeated drainage is collected at one side edge of the pavement plate 1 and easily discharged to the drainage grooves. It can be processed.

In the second embodiment shown in FIGS. 3 and 4, the inclined surface 5 of the concrete base 2 is formed in a V-shape from both side edges to the center, and a series of drain grooves 4 is formed at the center. , 4, ..., and a drainage path 4 'is provided laterally from the drainage section 4 toward the side edge of the concrete base 2. By laying the paving slab 1 back and forth in series, a series of Drainage parts 4 and 4 are formed, and a drainage groove such as a U-shaped groove is installed along the side edge on the terminal side of the discharge passage 4 ′, so that permeated drainage is collected at the center of the pavement plate 1 and It is possible to easily perform the discharge process from the discharge path 4 'to the drain.

The manner of forming the inclined surface 5 and the drainage section 4 is not limited to the above embodiment, but can be formed in various other forms according to the design of the road to be constructed.

[0014]

As described above, according to the present invention, a pavement slab of the present invention is continuously laid to form a road. In addition, rainwater can pass through the permeable pavement material and drain down reliably from the slope on the concrete base to the drainage section. Drainage drains such as U-shaped ditch where drainage discharged from each pavement plate is separately installed Water can be easily collected and processed.

[Brief description of the drawings]

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

FIG. 2 is a vertical sectional front view showing the first embodiment of the present invention.

FIG. 3 is a perspective view showing a second embodiment of the present invention.

FIG. 4 is a vertical sectional front view showing a second embodiment of the present invention.

[Description of Signs] 1 Paving slab 2 Concrete foundation 3 Permeable pavement material layer 4 Drainage part 4 'Drainage channel 5 Slope

Claims (1)

[Claims] 1. A permeable pavement material such as permeable asphalt is laminated on a concrete base having an upper surface provided with an inclined surface forming a downward slope toward a drainage portion so that the upper surface becomes a horizontal surface. Characteristic permeable pavement plate.