JPH0410260Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial field of application] This invention relates to the drainage structure of baseball fields and stadiums with artificial turf laid, and to be more specific, this invention can be used to improve the drainage structure of baseball fields and stadiums without impairing the drainage function. This invention relates to a drainage structure for an athletic field made of artificial turf, which allows artificial turf to be laid almost all around the circumference.

[Conventional technology]

In all-weather baseball fields and stadiums made of artificial turf, artificial turf is laid on top of the base ASCON pavement or concrete pavement, but conventionally, the edges of the artificial turf are also used to stop the ASCON or concrete substrate from paving. Therefore, drainage ditches such as cast-in-place concrete gutters or prefabricated concrete gutters are always installed, and artificial turf has been laid up to the front of these gutters. In this case, when a competition is held near the edge of the artificial turf, there is no artificial turf laid in the gutter area, so it is difficult for the players to move from the artificial turf to the edge of the gutter cover. The reaction force of the ground against the legs changes suddenly, causing people to step hard on the gutter cover and sprain their legs, or get their legs caught and fall, causing injuries. For this reason, in recent years, artificial turf baseball fields, etc., have clay paved within a preset width near the gutter of the artificial turf terminal, creating a buffer zone between them and the artificial turf to alert players to danger. A configured version is also provided.

[The problem that the idea aims to solve]

However, even with the buffer zone described above, the surface suddenly changes from artificial turf to clay pavement.
For players who are playing hard without checking the surface, the change in the surface will make them feel uncomfortable in their legs, and even if the danger can be avoided, it is not a welcome change for the player. Nakatsuta.

In addition, after rain, even if the precipitation has drained away from the artificial turf side, the clay paved area is often muddy, and this mud can cause slipping when the artificial turf area changes to the clay area.
In some cases, the danger even increased. Further, at the boundary between the artificial turf and the clay pavement, differences in level may occur due to changes over time, which also causes a dangerous situation for players.

This idea was made in view of the actual state of the prior art as described above, and its purpose is to eliminate the danger of artificial turf paving suddenly changing into other pavement halfway through, and to ensure drainage and improve safety. The purpose of the present invention is to provide a drainage structure for an athletic field made of artificial turf that can ensure safe play.

[Means to solve the problem]

This invention provides a drainage structure for an artificial turf sports stadium that is composed of a paving structure, artificial turf laid on the top surface of this paving structure, and an external structure located at the edge of this artificial turf. One side wall has a first water permeable hole, and the other side wall has a second water permeable hole, and the side wall on the side of the first water permeable hole is buried facing the side wall of the external structure with an interval, and the upper surface can be closed. The drainage ditch structure is characterized by having artificial turf laid from the upper surface of the pavement structure to the upper surface of the closed drainage ditch structure to a position adjacent to the external structure, leaving at least a gap for drainage. It is something to do.

[Effect]

In this configuration, the drainage structure has an underdrain structure whose upper surface can be closed, and the underdrain structure is buried at a predetermined interval for introducing drainage into the external structure, and a drainage channel is installed on the top surface of the underdrain structure. Artificial turf has been laid across all spaces except for gaps. On the other hand, on one side wall of the underdrain structure facing the gap forming part, a first
The other side wall is equipped with a second water permeation hole that opens on the underside of the paving structure on which artificial turf is laid, so that precipitation flowing from the surface of the artificial turf toward the external structure will flow through the gap. The rainwater flows into the underdrain structure through the first water permeation hole, and the precipitation that permeates into the paving structure from the artificial turf surface flows into the underdrain structure through the second water permeation hole.

This allows the top surface of the culvert structure to be covered with artificial turf in all but the gaps that allow precipitation to flow down along the external structure, eliminating surface changes during play.

〔Example〕

Hereinafter, embodiments of this invention shown in the drawings will be described.

First, the first embodiment of this invention shown in FIG. 1 will be explained. This embodiment consists of a concrete wall 1 as an external structure and a U-shaped gutter as a culvert structure provided adjacent to the concrete wall 1. 2 and
A pavement structure 3 provided inside the U-shaped gutter;
It mainly consists of a U-shaped gutter 2 and artificial turf 4 laid on the top surface of a paving structure 3.

The concrete wall 1 is constructed on the foundation ground 5 so that its inner surface is vertical, and a buffer material 6 is attached to the part protruding from the paving structure 3 for safety to function as a buffer wall.

The U-shaped gutter 2 is permeable on both sides, that is, the first and second permeable walls 9 and 11 are formed on both side walls 7 and 8 of the U-shaped gutter 2, respectively, and are 10 mm to 100 mm from the inner surface 10 of the concrete wall 1. , preferably 50
Buried at a distance of mm. In this case, the lower part of the U-shaped gutter 2 and almost the lower end of the first permeable wall 9 are fixed with water-stopping mortar 12, and in the gap between the inner surface of the concrete wall 1 and the side wall 7, is filled with single-grain crushed stone 13 of size 6 or 7. Moreover, a concrete cover 14 is placed on the opening of the upper surface of this U-shaped gutter 2, thereby forming an underdrain structure.

The pavement structure 3 is constructed by laying water permeable pipes (not shown) at appropriate positions on the foundation ground 5, laying a sand layer 15 as a filter layer on top of the water permeable pipes (not shown), and placing a crushed stone layer 1 on top of the sand layer 15 as a filter layer.
6 are stacked, and a curb 17 for stopping paving is placed along the inside of the U-shaped gutter 2, and a lid 1 is placed on the inside of the curb 17.
4, and is formed by laminating two water-permeable ascon layers 18 with a slight downward slope for drainage on the concrete wall 1 side. At this time, it is important to match the lamination level of the sand layer 15 with the level of the second permeable wall 9 of the U-shaped gutter 2, so that after the permeable ascon layer 18, crushed stone layer 16, and permeable paving of the sand layer 15, The seepage water from the upper part is collected and led to the U-shaped gutter 2. After forming the upper surfaces of the U-shaped gutter 2 and the water-permeable ascon layer 18 to be approximately at the same level as described above, the water-permeable underpad 19 and the water-permeable sand-containing artificial turf 4 are formed.
Connect the end of the concrete wall 1 to the inner surface of the U-shaped gutter 2.
and the side wall 7, and lay it with a slight gap d. In this embodiment, since the end of the artificial turf 4 protrudes into the above-mentioned gap, this gap is filled with single-grain crushed stone 13, but the filling material for this gap can be any granular material. Any material may be used, and the same function can be achieved even if it is not a granular material as long as it has water permeability. Furthermore, it goes without saying that if the artificial turf 4 is in a stable state of being laid, a space may be left open without being filled with anything. Moreover, since the gap d is extremely small compared to the thickness of the cushioning material 6, the gap d serving as a drainage path is not visually recognized from the surface at a glance.

With the configuration described above, during heavy rain or when the rain continues for a long time, the surface water of the artificial turf 4 passes through the above-mentioned gap d and gap and reaches the first permeable wall 9 of the U-shaped gutter 2.
It flows into the U-shaped gutter 2 from there. In addition, percolation and drainage from the surface of the artificial turf 4 also progresses at the same time. On the other hand, in the case of rainfall that does not reach the level of heavy rain, the entire paved portion has a permeable structure, so rainwater that permeates from the surface of the artificial turf 4 easily reaches the lower layer, causing the crushed stone layer 16 or the sand layer 15 to reach the lower layer. Then, it permeates and flows into the U-shaped side gutter 2 from the second permeable wall 11 . Furthermore, in areas away from the U-shaped gutter 2, water is collected by the above-mentioned water permeable pipes provided as appropriate and is discharged to the U-shaped gutter 2. Furthermore, even if it does not lead to heavy rain, if the rainfall exceeds the permeability of the pavement structure, the overflow will flow through the surface of the artificial turf 4 into the U-shaped gutter 2 through the gap d, and the permeated amount will be absorbed into the U-shaped gutter 2 as described above. Water is drained from the second water-permeable wall 11 in this manner.

Further, in the case of the first embodiment, the lid 14 is a normal concrete lid, but if a material having water permeability or a lid having a water permeable structure is adopted, for example, drainage performance can be further improved.

Next, a second embodiment will be described with reference to FIG. Components similar to those of the first embodiment shown in FIG. 1 are denoted by the same reference numerals, and detailed explanation thereof will be omitted. In this second embodiment, an underdrain block 21 having openings on both sides is used as a drainage channel structure.

Now, in FIG. 2, an opening 23 is formed in the side wall 22 of the underdrain block 21, and a water permeation hole 26 is formed in the side wall 24, which communicates with a water permeation pipe 25 passing through the sand layer 15.
is drilled. In addition, water permeation holes (not shown) are formed at arbitrary intervals in the parts where the permeable pipe 25 does not communicate and are in contact with the sand layer 15, so that rainwater permeates from the sand layer 15 more efficiently. This allows water to be drained away. This culvert block 21 has the lower end 27 of the opening 23 in contact with the inner surface of the concrete wall 1, and the upper end is 30 mm from the inner surface 10 of the concrete wall 1.
It is set to have a predetermined interval d.
Further, as shown in FIG. 2, the lower end portion 27 is sloped slightly downward so that rain can be introduced into the underdrain block 21 through a gap having an interval d. When such a culvert block 21 is used, since there is no opening at the top, the culvert block 21 itself can be used to stop paving without providing a curb 16 for paving as in the first embodiment. Curb 16 is omitted and paving structure 3
It consists of

As a result, the pavement structure 3 is constructed by laminating a sand layer 15, a crushed stone layer 16, and a permeable ascon layer 18 consisting of a single layer on the foundation ground 5, and furthermore, a permeable ascon layer 18 of almost the same level.
The water-permeable underpad 19 and sand-containing artificial turf 4 can be laid all over the top surface of the culvert block 21, leaving a gap d. A stadium will now be constructed.

This second embodiment also has the same drainage effect as the first embodiment, but has the further advantage that the drainage structure is simpler than the first embodiment.

[Effect of idea]

As described above, in the artificial turf drainage structure for an athletic field of this invention, the first water permeation hole and the second water permeation hole are respectively formed in the side wall portion, and the drainage groove structure whose upper surface can be closed is connected to an external structure. artificial turf is buried at a predetermined interval between A path leading from between the drainage ditch structure and the drainage structure through the first water permeability hole, and a route leading rainwater that has permeated from the pavement structure to the drainage ditch structure through the second water penetration hole. Since two channels are provided, the top surface of the drainage ditch structure can be closed. Therefore, even if artificial turf is laid on the entire upper surface of the drainage ditch structure, sufficient drainage function can be provided, and there is no need to construct a surface made of a different material as in the past. This makes it possible to eliminate the danger of the artificial turf pavement suddenly changing to another pavement halfway through, and it is possible to ensure safe play in the artificial turf installation structure.

[Brief explanation of the drawing]

FIG. 1 is an explanatory sectional view of a main part showing a drainage structure in a first embodiment of this invention, and FIG. 2 is an explanatory sectional view of a main part showing a drainage structure in a second embodiment. In the drawing, 1 is a concrete wall, 2 is a U-shaped gutter, 3 is a paving structure, 4 is artificial turf, 5 is a foundation ground, 6 is a buffer material, 7, 8, 22, 24 are side walls,
9 is a first water-permeable wall, 11 is a second water-permeable wall, 12 is mortar for stopping water, 13 is single-grain crushed stone, 14 is a lid, 15
16 is a sand layer, 16 is a crushed stone layer, 17 is a curb, 18 is a permeable ascon layer, 19 is a permeable underpad, 21
is a culvert block, 23 is an opening, 25 is a permeable pipe, 2
6 is a water permeation hole, and 27 is a lower end portion.

Claims (1)

[Scope of utility model registration request] In the drainage structure of an artificial turf sports stadium, which is composed of a paving structure, artificial turf laid on the top surface of this paving structure, and an external structure located at the edge of this artificial turf, one side wall The first water hole,
The drain structure has a second water permeable hole on the other side wall, the side wall on the side of the first water permeable hole is buried so as to face the side wall of the external structure at a distance, and the upper surface can be closed. and the artificial turf is laid from the upper surface of the paving structure to the upper surface of the closed drainage ditch structure, leaving at least a gap for drainage to a position adjacent to the external structure. Drainage structure for athletic fields.