JPS6354084B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves laying a foamed resin plate-like body for underground water flow with holes penetrating from the surface to the back side of the foamed resin plate-like body, and planting vegetation on the topsoil layer on the surface. The present invention relates to a method for creating a lawn, etc., and a structure of a plate-like body for underground water passage.

In general, in lawn areas, especially in sports turf for golf, tennis, soccer, rugby, etc., stadiums, parks, schoolyards, etc., the topsoil hardens due to pressure from people and machinery, impairing drainage and soil ventilation, and causing vegetation to grow. Adversely affect. Unlike other agricultural land, it is impossible to inter-till lawns, and since turfgrass is perennial, it is not possible to till the crops after harvesting, unlike annual agricultural land. It is not possible to soften the soil without damaging the lawn.

Therefore, before planting, it is necessary to make the soil suitable for maintaining vegetation, and for this purpose, it is most important to quickly drain excess water from the vegetation base and convert the water phase in the soil pores to a gas phase. .

This also applies to vegetation such as trees, orchards such as fruit trees, agricultural land where perennial vegetation is cultivated, and agricultural land with poor drainage. Lawns, etc. in the application may include the above-mentioned vegetation areas, orchards, and agricultural land.

Under conventional specifications, drainage was carried out by constructing an underground drainage layer made of gravel or crushed stones, but transporting gravel, crushed stones, etc. with a thickness of 10 to several tens of centimeters was labor-intensive and expensive. This will be a huge undertaking in terms of time and resources.

The present invention is particularly applicable to a method for constructing lawns, etc., which are often compacted due to treading pressure. This is a method for creating lawns, etc., and materials for underground water passage, in which the surface soil layer is covered with vegetation. Using materials for underground drainage that are lightweight and do not cause clogging due to soil, construction can be carried out easily and quickly, and it also provides good drainage ventilation over a long period of time.It also has the effect of keeping the grass bed soil warm, so it can be used in cold weather. The purpose is to create lawn areas that reduce stagnation of growth.

First, the structure of the foamed resin plate-like body for underground water passage of the present invention will be explained. The plate-shaped water passing body is suitably made of synthetic resin from the viewpoint of manufacturing and durability, and from the viewpoint of light weight, it is advantageous to use foamed resin or the like. The water-permeable layer may be made of a material such as net, sponge, or fiber, either alone or in combination.

The embodiment shown in FIG. 1 shows a structure (partially shown in cross section) of a molded underground water-flowing foamed resin plate. On the side surface, the connecting portion 3 is formed into a stepped shape. The size of the water passage plate 1 may be arbitrary, but from the viewpoint of handling, it is preferably about 1 meter on each side and about 5 to 10 centimeters thick. The through holes 2 are formed to have a diameter of 1 to 1.5 cm, with an interval of 3 to 5 cm, and to pass through the entire surface of the plate in a square, staggered, or arbitrary manner.

Next, a method for creating a lawn or the like according to the present invention will be explained. In Figure 2, the surface of the subsoil layer 4 is covered with a drainage ditch 5.
The drainage ditch 5 is shaped to have a running water gradient, and perforated or mesh pipes 6 are buried at intervals of several meters.

The above-mentioned water passing plate is laid on the entire surface of the subsoil layer so that the connecting portions are connected to each other, and then a water permeable layer 7 made of net, sponge, fiber, etc. is covered over the entire surface of the area where the water passing plate is installed. Furthermore, the surface soil layer 8 is about 15 to 40
It is possible to create a lawn or the like by planting grass and other vegetation in a centimeter-thick layer.

In the above, the subsoil layer refers to the ground that is the basis of a lawn, etc., and when it is possible to grow grass or other vegetation on the mound, it refers to the natural topography or the ground that has been leveled in advance. shall be included.

Regarding the material of the foamed resin plate for underground water flow, in addition to foamed polystyrene made of synthetic resin, thermoplastic resins that can be foamed to reduce weight include polyethylene, polypropylene, polyamide, vinyl chloride, vinyl acetate, etc. Also, in thermosetting resin,
In addition to resins such as phenol, epoxy, urea, and polyurethane, synthetic rubbers, resin concrete, and the like can also be used.

The water-permeable layer is made of synthetic resin such as net or sponge, and the fibers are woven or non-woven fabrics made of various materials, either alone or in combination.

As described above, the present invention uses foamed resin plates for underground drainage in place of conventional crushed stones and gravel layers, and is approximately 1/50th lighter in weight. This made it extremely easy to carry and carry out. In addition, the vertical holes of this material do not become clogged due to the inflow of soil from the topsoil layer due to the permeable layer such as netting, and are effective in aeration of drainage soil over a long period of time. Moreover, since it is a material that has a thermal insulation effect, it reduces growth stagnation during cold weather and reduces damage caused by frozen soil.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a foamed resin plate material for underground water passage according to an embodiment of the present invention, and FIG. 2 is a sectional view of a cultivated area such as a lawn using the same material. 1...Water plate, 2...Through hole, 3...Connection part, 4
...Subsoil layer, 5...Drainage ditch, 6...Drain pipe, 7...
...permeable layer, 8...topsoil layer, 9...turf grass, etc.

Claims (1)

[Scope of Claims] 1. A drainage structure is provided in the subsoil layer using a drainage pipe in which a mesh pipe or a perforated pipe is buried, and a board foamed with a resin as a material for underground water flow is provided above the subsoil layer. After laying a foamed resin plate-like body for underground water flow, which has holes penetrating from the surface to the back side of the body, in a continuous manner over the entire surface,
A method for producing a lawn, etc., characterized in that a water-permeable layer of net, sponge, fiber, etc. is laid over the entire upper surface of the foamed resin plate, and a topsoil layer is further provided on the surface for vegetation. 2. A foamed resin plate-like body for underground water passage in a lawn area, which has a through hole penetrating from the surface to the back side of the plate-like body made of foamed resin.