JPH0820907A - Construction of waterpermeable athletic-field pavement surface, and repairing method for the surface - Google Patents

Abstract

PURPOSE:To easily repair an decrepit surface-drainage type all-weather athletic- field, or an all-weather water permeable athletic-field in a short period of time to form a water permeable artificial lawn athletic pavement surface, and to improve drainage efficiency at a low cost. CONSTITUTION:A branch culvert 20 and a permanent culvert 21 are filled with water permeable asphalt concrete 18a, or a layer 19a such as rubber chips, etc., is formed on the surface of a layer of the water permeable asphalt concrete 18a and almost flush with the existing paving surface. A water permeable sandy artificial lawn 24 or a compound of the sandy artificial lawn 24 and a cushion pad is provided to the surface of the layer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a water-permeable type playground pavement surface and a method of repairing the pavement surface. More specifically, an existing playground having an elastic pavement surface is rehabilitated to make a water-permeable artificial surface. The present invention relates to a structure of a water-permeable playground pavement surface that can be easily and inexpensively repaired on a lawn motion pavement surface, and a method for repairing the pavement surface.

[0002]

2. Description of the Related Art In recent years, as a pavement material for sports playgrounds such as tennis courts, athletics stadiums, school yard soccer fields, etc., an adhesive has been added to a mixture of granular rubber and fibrous rubber and integrally bonded and solidified. The material has been developed and widely used as a so-called all-weather, water-permeable elastic pavement material.

In the case of repairing an existing playground on which such a water-permeable elastic pavement material has not been constructed to a water-permeable elastic pavement surface, after excavating the existing asphalt concrete or concrete pavement material and removing it, As shown in FIG. 4, a crushed stone 2 is sprinkled on the roadbed 1, the ground is leveled, the water-permeable asphalt concrete 3 is laid on the ground, and the water-permeable elastic pavement material 4 is sprinkled on the road to perform compaction. ing.

[0004]

However, such a method of excavating and repairing the entire surface of the existing playground not only requires a long construction period and requires a lot of man-hours, but also increases the material cost. In addition, there is a problem that the construction cost increases, such as an increase in the amount of discarded pavement material that has been dug up. In particular, if the existing pavement material is a surface-drainage type such as a hard coat, when changing this to a water-permeable type artificial turf exercise paving surface, the problem that becomes noticeable in terms of construction cost as described above was there.

The present invention was devised in view of the above-mentioned conventional problems, and it has been proposed that an aged existing surface drainage type all-weather playground and an all-weather water-permeable playground can be used as a water-permeable artificial turf. The purpose of the present invention is to provide a structure of a water-permeable athletic field pavement surface that can be easily and quickly repaired on an athletic pavement surface and that is inexpensive and has good drainage, and a method for repairing the pavement surface. is there.

[0006]

In order to achieve the above-mentioned object, the present invention provides a method of filling a culvert with water-permeable asphalt concrete or forming a layer such as rubber chips on the surface of the water-permeable asphalt concrete layer. The gist of the present invention is that it is formed on substantially the same surface as the existing pavement surface, and a water-permeable sand-containing artificial grass is arranged on the surface of the layer.

On the surface of the water permeable asphalt concrete layer or the mixed layer of water permeable asphalt concrete and rubber chips, it is possible to dispose a composite of artificial sand containing sand and a cushion pad. In addition, the underdrain is
It consists of a main culvert and a branch culvert. Here, a layer such as a rubber chip refers to a layer in which rubber chips are bonded with a binder or a layer in which natural crushed stone is bonded with a binder.

[0008]

The present invention is constructed as described above, and a plurality of pavement materials having a water-permeable asphalt concrete layer, a urethane elastic layer, etc. laminated on a roadbed are provided at a predetermined distance from the roadbed surface to the bottom. Forming a strip-shaped underdrain, filling the permeable asphalt concrete in the underdrain, or on the surface of the permeable asphalt concrete layer,
A layer of rubber chips or the like is formed to be formed on substantially the same surface as the existing pavement surface, and a water-permeable sand-containing artificial grass or a composite of sand-containing artificial grass and a rubber chip coat is laid on the surface of the layer. .

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a plan view of a water-permeable playground pavement surface according to the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view taken along the line BB of FIG. In the figure, 10 is a tennis court, 11 is a court line, 13 is a drainage trough, and 14 is a drainage side groove.

The tennis court 10 forms a crushed stone layer 17 by sprinkling crushed stones 16 on a roadbed 15 to level the ground, and on the crushed stone layer 17, existing asphalt concrete 18 and urethane elastic layer constituting a paving material. 19 are sequentially laminated. Then, as shown in FIG. 1 and FIG. 2, a plurality of strip-shaped branch culverts 20 having a bottom surface deeper than the roadbed surface are formed by excavating the pavement material on the roadbed 15 at predetermined intervals. As shown in FIG. 1 and FIG.
A main underdrain 21 that intersects with the plurality of branch underdrains 20 in the center and communicates with the drainage trough 13 and the drainage side groove 14.
Has been drilled.

The main underdrain 21 is excavated so as to have a downward slope toward the drainage ditch 14, and each branch underdrain 20 is
The excavation is performed so as to have a downward slope toward the intersection of the main culvert 21. In the main culvert 21 is shown in FIG.
As shown in FIG. 5, a water permeable pipe 23 having a large number of small holes 22 formed on its peripheral surface is arranged. Branch culvert 20 formed in this way
The main underdrain 21 is filled with crushed stone 16a and water-permeable asphalt concrete 18a, and the rubber chip layer 1 is placed on top of it.
9a are sequentially filled to form substantially the same surface as the existing pavement surface, and on the surface of the mixture with this rubber chip layer 19a, water-permeable sand-containing artificial grass 24 or a composite of sand-containing artificial grass 24 and a cushion pad is formed. It is provided.

In the above embodiment, the underdrain is a branch underdrain 2
Although it is formed by dividing into 0 and main culvert 21, only a plurality of branch culverts 20 may be formed in consideration of design rainfall, drainage area, water gradient and the like. The thickness of the water-permeable asphalt concrete 18 laid on the entire existing pavement surface is 30 mm to 5 mm.
It is preferable that the thickness of the urethane elastic layer 19 on the surface side is 0 mm and about 8 mm.

Further, although the above-mentioned embodiment was carried out on a tennis court, it is needless to say that it can be carried out on a sports playground such as an athletic field and a school yard soccer field. As a method of repairing the permeable type playground pavement surface configured as described above, the crushed stone layer 17 is sprinkled on the roadbed 15 to level the ground, and the crushed stone layer 17 is formed. A pavement material is constructed by sequentially laminating a water-permeable asphalt concrete layer composed of the asphalt concrete 18 and a urethane elastic layer 19 composed of rubber chips.

Then, a plurality of belt-like branch culverts 20 having a bottom surface deeper than the roadbed surface and a main culvert 21 are formed on the paving material as described above at predetermined intervals, and the branch culvert 20 and the book are provided. Crushed stone 16a, permeable asphalt concrete 18a or permeable asphalt concrete 18 in the underdrain 21
The mixture of a and rubber chips and the rubber chip layer 19a are sequentially filled to form the same surface as the existing pavement surface.

Then, a water-permeable sand-containing artificial turf 24 or a composite of the sand-containing artificial turf 24 and a rubber chip coat is laid on the paved surface, and the repair work is completed. In sports grounds such as tennis courts, athletics stadiums, and school yard soccer fields that have been repaired as described above, the rainwater that has fallen on the pavement during rainfall is permeable sand-containing artificial grass 24 or sand-containing artificial grass 24. The cushion pad and the water-permeable urethane elastic layer 19 and the existing water-permeable asphalt concrete 18 are permeated into the branch culvert 20 and the permeable asphalt concrete 18a in the branch culvert 20 or a mixture of the water-permeable asphalt concrete 18a and rubber chips, and The rainwater that has penetrated into the crushed stone layer 17 flows toward the main underdrain 21 due to its gradient, sinks between the crushed stone layers 17 of the main underdrain 21, enters the permeable pipe 23, and rainwater that flows along the gradient of the permeable pipe 23. Is discharged to the outside through the drainage trough 13 and the drainage side groove 14.

As described above, the rainwater that has fallen on the paved surface of the rehabilitated sports playground permeates from the paved surface of the sand-filled artificial grass 24 or the sand-filled artificial grass 24 and the cushion pad, so that no water pool is formed. No maintenance is required after the rain, and it can be used as an all-weather sports playground with easy maintenance. Furthermore, the sports playground of the artificial sand turf 24, which has been modified according to the present invention, not only has good permeability of rainwater, but also has a soft feel on the feet of the athlete, less fatigue and obstacles, and a ball Bounces well and can be used under optimal conditions.

[0017]

INDUSTRIAL APPLICABILITY The present invention is substantially the same as an existing pavement surface by filling the underdrain with water-permeable asphalt concrete or forming a layer such as rubber chips on the surface of the water-permeable asphalt concrete layer as described above. Since it was formed on the surface and the surface of the layer was formed by arranging artificial grass containing water-permeable sand, an aged existing surface drainage type all-weather playground or an all-weather water-permeable playground was used. The water-permeable artificial turf exercise pavement surface can be easily refurbished in a short period of time, and the refurbishment work can be done easily, and because the structure is simple, it can be constructed at low cost, Furthermore, there is an effect that it can be an all-weather playground with good drainage.

[Brief description of drawings]

FIG. 1 is a plan view of a water-permeable playground pavement surface embodying the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along the line BB of FIG.

FIG. 4 is a cross-sectional view of a conventional all-weather playground.

[Explanation of symbols]

10 Tennis court 11 Court line 13 Drainage trough 14 Drain gutter 15 Roadbed 16 Crushed stone 17 Crushed stone layer 18 Existing water-permeable asphalt concrete 18a Water-permeable asphalt concrete 19 Urethane elastic layer 19a Rubber tip layer 20 Branch underdrain 21 Main culvert 22 Small hole 23 Water permeability Tube 24 artificial turf

Claims (4)

[Claims] 1. A pavement material formed by laminating a water-permeable asphalt concrete layer, a urethane elastic layer, etc. on a roadbed, and forming a plurality of belt-like underdrains with a predetermined depth and a depth below the roadbed surface as a bottom surface. In the structure of a playground pavement surface that is filled with permeable asphalt concrete or crushed stone in the underdrain and is substantially flush with the existing pavement surface, the underdrain is filled with permeable asphalt concrete, or the permeable asphalt concrete On the surface of the layer,
A structure of a water-permeable playground pavement surface, characterized in that a layer of rubber chips or the like is formed on the substantially same surface as the existing pavement surface, and a water-permeable artificial grass containing sand is disposed on the surface of the layer. 2. The water permeable mold according to claim 1, wherein a composite of water permeable sand-containing artificial grass and a cushion pad is arranged on the surface of the water permeable asphalt concrete or a mixture of the water permeable asphalt concrete and rubber chips. Structure of the playground paving surface. 3. The structure of a water-permeable playground pavement surface according to claim 1, wherein the underdrain comprises a main underdrain and a branch underdrain. 4. A pavement material having a water-permeable asphalt concrete layer, a urethane elastic layer or the like laminated on a roadbed, and a plurality of strip-shaped underdrains having a bottom surface deeper than the roadbed surface are formed at predetermined intervals, and the underdrain is formed. Fill the inside with water-permeable asphalt concrete, or on the surface of the water-permeable asphalt concrete layer, to form a layer such as rubber chips to form substantially the same surface as the existing pavement surface, the surface of the layer, water-permeable A method for repairing a water-permeable playground pavement characterized by laying artificial grass with sand or a composite of artificial grass with sand and a rubber chip coat.