JPS6236083B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for creating a lawn, in which a porous plate-like body made of foamed resin is buried for underground drainage and cultivation of turfgrass, and the method used therein. Regarding materials.

In general, on grassy areas, especially on the sports turf of stadiums such as golf, tennis, soccer, and rugby, as well as grassy areas such as parks and schoolyards, the topsoil becomes compacted due to the treading pressure of people and machinery, resulting in poor drainage and soil aeration. ,
Negative effect on turfgrass vegetation. Unlike other agricultural land, it is impossible to inter-till lawn land, and since turf grass is perennial, it cannot be tilled after harvesting crops like in agricultural land, which can damage the lawn. Without this, it is impossible to make the soil swollen and soft.

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. .

In the conventional specifications, drainage was carried out by forming an underground drainage layer using gravel or crushed stones, but transporting gravel, crushed stones, etc. ranging from 10 cm to several tens of centimeters in thickness was labor-intensive and difficult. This will be a costly and time-consuming project.

The present invention is a method for creating lawn areas, especially sports turf that tends to harden due to treading pressure. This is a method of creating a lawn that is connected to the entire surface to improve drainage, and the topsoil layer is covered with grass, and the structure of the foamed resin plate for underground drainage used in this method is lightweight and makes the soil more visible. To create a lawn that can be easily and quickly constructed using a foamed resin board that does not cause clogging, and has good drainage and aeration over a long period of time.

First, an example of the structure of a porous plate-like body made of foamed resin of the present invention will be described with reference to the drawings. In FIG. 1, the size of the plate-shaped body may be arbitrary, but for handling reasons, it is a plate-shaped body made of a synthetic resin such as styrofoam and has a side of about 1 m and a thickness of about 10 to 20 cm. A water passage 2 with a diameter of 1 to 5 cm is provided horizontally in the plate-like body 1.
One or more passages 2' are provided in parallel, and one or more passages 2' are provided in parallel to intersect the passage 2.

Slits 3 communicating with the water passages 2 and 2' from the upper surface of the plate-shaped body 1 are provided at intervals of about 10 cm in length and width. The width of this slit 3 is set to 1 to 5 mm to prevent clogging with topsoil. Further, the side surface of the plate-like body 1 is provided with a recess 4 and a convex portion 5 so that it can be connected to left and right, front and rear plate-like bodies in combination with each other. The water channels 2 and 2' connect to each other to allow drainage through a series of water channels.

Although the embodiment shown in FIG. 1 shows vertical and horizontal slits 3, in place of the slits 3, a large number of pores through which gravity water passing through which communicates with the water passages 2 and 2' may be provided.

Next, a method for creating a lawn according to the present invention will be explained. In Fig. 2, the surface of the subsoil layer 6 is shaped to have a running water slope, drainage ditches 7 are provided as necessary to remove groundwater, and perforated or mesh pipes 8 are buried in the drainage ditches 7 at intervals of several meters. do.

The concave portion 4 of the plate-like body 1 is arranged so that the passageways 2 and 2' of the plate-like body 1 communicate with the upper part of the subsoil layer.
And the convex portions 5 are laid over the entire surface so that they are combined with the concave and convex portions of the adjacent plate-like bodies.

Furthermore, a lawn can be created by increasing the surface soil layer to 15 to 40 cm and planting lawn vegetation.

In the above, the expression subsoil layer refers to the ground that is the foundation of a lawn after it has been created, and includes natural topography or pre-graded ground if lawns can be grown on top of the mound.
In addition, although polystyrene was used as an example of the material of the plate-shaped body in the examples, other materials that can be foamed to reduce weight include thermoplastic resins such as polyethylene, polypropylene, polyamide, vinyl chloride, vinyl acetate, etc. In addition to resins such as phenol, epoxy, urea, and polyurethane, synthetic rubbers, resin concrete, and the like can also be used.

As described above, the present invention uses a foamed resin plate for underground drainage provided with slits or pores through which gravity water passes, in place of the conventional drainage crushed stone gravel layer, and it weighs approximately less than crushed stone. The weight has been reduced to one-fiftieth, making it extremely easy to carry and carry out. or,
The slits or pores through which gravity water passes through the plate-shaped body are less likely to be clogged by the inflow of soil from the topsoil layer, and are effective in draining and aerating the soil over a long period of time. In addition, there is no need to lay particularly detailed underground drainage pipes, which can be omitted, making construction easier and reducing construction costs.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a foamed resin plate-like body for underground drainage according to an embodiment of the present invention, and FIG. 2 is a sectional view of a lawn land using the same plate-like body. 1... Foamed resin plate-like body, 2... Water passage, 3...
slit, 4...concavity, 5...convexity, 6...subsoil layer, 7...drainage ditch, 8...drain pipe, 9...topsoil layer, 10...turfgrass.

Claims (1)

[Claims] 1. A drainage structure using a drainage pipe is provided as necessary on a slightly sloped subsoil layer, and a porous resin foamed resin is provided on the upper part of the subsoil layer as a drainage material. A water passage is provided in the material, and a foamed resin plate for underground drainage is installed on the entire surface, which has slits that communicate with the water passage from the upper surface or a large number of pores through which gravity water passes. A method for creating a lawn area, which is characterized by planting lawn vegetation on the topsoil layer. 2. An underground structure characterized by having a horizontal passageway provided in a porous plate-like body made of foamed resin, and a slit communicating with the passageway from the upper surface or a large number of pores through which gravity water passes. Foamed resin plate for drainage. 3. The foamed resin plate-like body for underground drainage according to claim 2, wherein the side surfaces of the plate-like body are vertically stepped, sloped, uneven, etc. to prevent soil from falling and can be connected to each other.