JPS5923043Y2 - Surface water underground conveyance paved road - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an underground water conveyance paved road on the ground surface that allows rainwater in a city to permeate underground from the road surface.

Due to the spread of public sewage systems, most of the rainwater in modern cities today is discharged into sewage pipes through roadside drains, and seepage into the underground can only be expected in limited areas such as gardens and parks. be.

As a result, rainwater has stopped percolating underground, the groundwater level continues to decline, roadside trees are stunted, well water is drying up, and unforeseen events such as ground subsidence and road subsidence are occurring in many places.

Furthermore, although paved roads that do not produce a water film have been proposed, no measures have been taken to ensure that water permeates underground.

The purpose of this invention is to improve conventional paved roads by ensuring that rainwater that falls on sidewalks, driveways, etc. seeps underground without being discharged directly into sewer pipes through roadside drainage ditches. To provide a paved road which eliminates underground water, eliminates ground subsidence and poor growth of roadside trees, prevents well water from drying up, and prevents unexpected situations such as road subsidence and road cave-ins.

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

In the figure, first, the topsoil of the paving area is excavated, and then
For example, in the case of a sidewalk, the excavated surface is thoroughly compacted using a compactor with an excitation force of 6 tons or more, and particles with a diameter of about 5 mm are deposited on this surface.
A base layer with a thickness of approximately 5 Qmm is created using 2.5 mm crushed sand or rough sand, and a galvanized #10 iron mesh is placed on the surface of this base layer 5.
6 with a mesh diameter of 3 Q mm or less is laid, and on top of that a flow layer 4 is made of crushed stone or coarse stone with a particle size of approximately 40-5 mm and a thickness of approximately 15 Q m.
m, and a floor leveling layer 3 with a thickness of about 20 mm is created on the surface using crushed stone with a grain size of about 13-5 mm.

The base layer above, including the leveling layer, is considered to be the base course.

On the surface of the leveling layer 3 of this roadbed stingray, vertical iron plates 2 b, 2 b, 2 with a thickness of L are placed in a cross shape on the upper surface of the horizontal iron plate 2 a.
Joint pieces 2 with b and 2 b erected are arranged at regular intervals in the shape of the base, and the vertical iron plate (the corner of which is butted) of the joint pieces 2 is leveled. Lay it on the surface of layer 3.

As a result, a water passage groove having a width L (the thickness of the vertical iron plate 2b of the joint piece 2) is secured between the adjacent concrete flat plates 1.

For example, the concrete plate 1 is 300 x 300
A square one of 60 mm x 300 x 400
A rectangular piece measuring 80 mm x 80 mm is used, and as the joint piece 2, four galvanized iron plates 2b are vertically erected in a cross shape and spot welded on the top surface of a galvanized iron plate 2a measuring 100 x 100 x 4.5 mm.

Reference numeral 8 denotes a pavement surface protection plate made of a wear-resistant plastic plate or the like, and is installed by being fixed to the surface of the concrete flat plate 1 with driving rivets or the like.

Reference numeral 9 indicates a small hole for water passage drilled in the pavement surface protection plate 8, and reference numeral 10 indicates a non-slip protrusion provided on the surface.

For example, the pavement surface protection board is approximately 300 x 300 x
It has a size of 3 mm and 16 per 10000 mm2.
Small holes 9 for water passage are bored at a ratio of more than 1.

In the paved road constructed in this way, rainwater that falls down passes through the small holes 9 for water passage in the pavement surface protection plate 8, and then flows downward through the gaps between the concrete plates 1, 1, which are spaced apart from each other. It permeates into the ground through the water.

Since the present invention is constructed as claimed in the utility model registration based on the above-mentioned embodiment, rain that falls on roads in cities, etc. does not all flow into the sewage pipes on the roadside, and protects the pavement surface. Water seeps through small holes in the board and gaps in the concrete slab, passes through gaps in the roadbed, and penetrates below the base layer.

Therefore, water does not stagnate on the road, but percolates deep into the road and is stored. This prevents poor growth of roadside trees due to ground subsidence and drought, prevents well water from drying out, and prevents unforeseen accidents such as road cave-ins. Accidents caused by slipping of cars or people passing on the road or sidewalk can be eliminated.

In addition, when laying the concrete slab, joint pieces are used to fix the pavement surface protection plate on the concrete slab, making it possible to create a strong and durable paved road.

[Brief explanation of drawings]

Fig. 1 is a partial sectional view of a paved road according to an embodiment of the present invention, Fig. 2 is a partially cutaway plan view, Fig. 3 is a plan view of the joint pieces, and Fig. 4 shows the arrangement of the concrete slab and the joint pieces. FIG. 5 is a partially enlarged plan view of the pavement surface protection plate, and FIG. 6 is a similarly enlarged side view. 1...Concrete flat plate, 2...Joint piece, 2a...Horizontal steel plate, 2b...Vertical steel plate, 3...Floor leveling Layer, 4... flowing layer, 5... base layer, 6... iron mesh, 8...
...Pavement surface protection plate, 9...Small hole, 10...
... Anti-slip protrusions, a... Roadbed construction.

Claims (1)

[Scope of utility model registration request] When the topsoil was excavated and compacted, the grain size was approximately 5-2°5mm.
The base layer is made of crushed sand or rough sand with a thickness of about 5 Qmm, and a steel net is laid on the surface of this base layer, and on top of that is a layer with a grain size of about 4 mm.
Q-5mm crushed stone or rough stone is pounded and hardened to a thickness of about 15Qmm, and the surface of this flowing layer has a particle size of about 1.
A floor leveling layer made of 3-5mm crushed stone with a thickness of about 20mm is formed by spiral pressing, and vertical iron plates are erected in a cross shape on the top of the horizontal iron plate, and vertical iron plates are placed at regular intervals on the surface of the floor leveling layer. Place the arranged joint piece on the surface of the floor leveling layer with its corner abutting the vertical iron plate orthogonal to the joint piece, and form a water passage groove with the width of the vertical part of the joint piece between the adjacent joint pieces. A paved road that conveys surface water underground, consisting of a rectangular concrete flat plate that is fixed to the surface of the concrete flat plate, and a pavement surface protection plate that has small holes for water passage and has anti-slip protrusions on the top surface. .