JP2620453B2 - Ground improvement body such as lawn vegetation, ground improvement method, and improved ground formation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground improvement body used for improving ground or creating improved ground in green or other lawn vegetation, a garden or other ground in a golf course, and a ground using the improved body. The present invention relates to an improvement method and a method for forming an improved ground.

[0002]

2. Description of the Related Art Golf course greens are generally rebuilt about 7 years after they have been built. However, in order to improve the compacted soil quality and to cure the lawn, the greens are usually two to three years old.
In the annual cycle, a method was used in which multiple perforations were formed over the entire surface of the green and pebbles, gravel, sand, etc. were charged. It is understood that the improvement of the soil quality and the activation of the lawn were achieved by improving the water permeability and the air permeability, or by cutting off the lawn in a rooted state in the soil.

[0003]

However, when pebbles, gravel, etc. are put into a plurality of perforations made in the soil, it is possible to improve water permeability and air permeability for a while.
When rebuilding the green, it was difficult to remove solids such as pebbles and gravel from the soil. Such ground improvement is required not only for lawn vegetation, but also for gardens and other grounds.

Accordingly, the object of the present invention is to
It is an object of the present invention to provide a ground improvement body that does not require removal work at the time of rebuilding in place of these pebbles and gravel, and also provides a ground improvement method for lawn vegetation and the like using the ground improvement body and a method for forming the improved ground. Where you do it.

[0005]

Means for Solving the Problems To achieve the above object, the present invention is characterized in that as a ground improvement body, a collapsible plastic that returns to the soil after being degraded due to aging and microbial decomposition is used.

[0006] That is, the ground improvement body such as lawn vegetation or the like according to the present invention is formed from a spherical, angular or irregularly shaped collapsed plastic compact which can be put into a plurality of perforations formed in the ground to be improved. It is characterized by becoming.

Further, the method for improving the ground of lawn vegetation or the like according to the present invention comprises forming a plurality of perforations in the ground requiring improvement,
This is a method for improving the ground, characterized in that a small molded body of collapsible plastic having a spherical shape, a square shape, or a different shape is charged.

The small compact to be charged can take various shapes such as a spherical shape, a square shape or an irregular shape. The perforations to be drilled in the ground vary depending on the location and area, but a diameter of about 5 to 10 cm and a depth of about 50 to 100 cm should be 20 to
It may be provided at intervals of about 50 cm. In the case of a spherical small compact, a plurality of small compacts having a diameter of about 2 to 4 cm are charged. It is preferable to put a relatively large thing at the bottom for water permeability.

Further, if the small molded body is a small molded body having a large number of small holes, it is possible to further improve water permeability and air permeability. Furthermore, it is also possible to make the small compact into a hollow shape so that the fertilizer is contained therein. When all the small compacts are fertilizer-containing small compacts, there is a concern that all the small compacts may collapse relatively early, so that it is preferable that some of the small compacts to be introduced contain fertilizer. .

[0010] Furthermore, using such a small molded body of collapsible plastic makes it possible to form an improved ground. In other words, usually, a method of laying chestnut stone, gravel, gravel, etc. on the bottom surface to build up the intermediate soil and topsoil is used, but if a small molded body of collapsible plastic is mixed with earth and sand in the lower layer of topsoil, ventilation can be achieved. Improved ground with good drainage and drainage properties can be obtained. In other words, the method of forming an improved ground according to the present invention comprises mixing a soil consisting of a small molded body of spherical, angular or irregularly shaped collapsible plastic with soil and sand in the lower layer of the topsoil when turf vegetation, garden or other ground is formed. This is a method for creating improved ground, characterized by laying.

[0011] Disintegrable plastics include photodegradable plastics,
Although there are a biodegradable form and a microorganism-producing form, the biodegradable form and the microorganism-producing form are preferred because they are intended for use in soil. For example, a combination of polycaprolactone and polyethylene, a disintegrating plastic made from polyhydroxybutyrate (PHB) and a PHB / polyhydroxyvaleric acid (PHB / PHV) copolymer produced by a special microorganism in the cytoplasm, and the like. Provided.

As described above, if a ground improvement made of a small molded body of collapsible plastic is put into a plurality of perforations formed in the ground such as lawn vegetation, a space is formed between the ground improvements. Therefore, water permeability and air permeability can be improved.

Further, since this ground improvement body uses a collapsible plastic that collapses naturally due to aging, it is already lost when the entire ground such as lawn vegetation is rebuilt. Rebuilding work can be performed immediately without the need to remove it like gravel or gravel.

In addition, if a mixed soil of a small molded product of collapsible plastic and earth and sand is laid in the lower layer of the top soil at the time of new construction or rebuilding, an improved ground having good water permeability and air permeability can be obtained.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the accompanying drawings will be described below. FIG. 1 shows an embodiment of a ground improvement body used for ground improvement such as lawn vegetation and the like and a ground improvement method using the same according to the present invention.
cm, a plurality of perforations 1 with a depth of 70 cm over the entire surface,
Small molded body 2 of spherical collapsible plastic in each perforation 1
, And the upper part is filled with sand or earth and sand 3. In some cases, some of the small compacts 2 will be fertilizer-compacted small compacts.

FIG. 2 shows a method of forming a new ground for lawn vegetation, a garden, or other ground or at the time of rebuilding, as an improved ground. A state is shown in which an intermediate layer 5 in which a small plastic compact 2 and earth and sand are mixed is laid, and a topsoil 6 is buried thereon.

[0017]

As is clear from the above description,
The ground improvement body such as lawn vegetation and the ground improvement method using the same according to the present invention utilize a small molded body of collapsible plastic that collapses due to aging and microbial degradation. If multiple holes are drilled into the ground, water permeability and air permeability are improved and it is effective in improving the compacted soil, and when rebuilding the whole, the collapsible plastic has disappeared Therefore, there is no need to remove it like conventional pebbles and gravel, and it has the advantage that it can be rebuilt immediately.

Further, according to the improved ground forming method using the ground improved body according to the present invention, it is possible to provide an improved ground having good air permeability and water permeability, and it is also suitable for rebuilding. The improved ground could be provided.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a ground improvement body such as lawn vegetation and the like and a ground improvement method using the same according to the present invention.

FIG. 2 is a cross-sectional view showing one embodiment of a method for forming an improved ground using the ground improvement body according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Perforation 2 ... Small molded body of collapsible plastic 3
… Earth and sand 6… topsoil

Claims (4)

(57) [Claims] 1. A ground for lawn vegetation or the like comprising a small molded body of collapsible plastic having a spherical shape, a square shape, or a different shape that can be put into a plurality of perforations formed in the ground for lawn vegetation or the like. Improved body. 2. The small compact has a large number of small holes.
A ground improvement body such as the described lawn vegetation. 3. A ground improvement characterized by forming a plurality of perforations in lawn vegetation or other ground requiring curing, and feeding a spherical, angular or irregularly shaped collapsed plastic compact. Method. 4. The method according to claim 1, further comprising laying a mixed soil of a spherical, angular or irregularly shaped disintegrable plastic compact and earth and sand on the lower layer of the topsoil when laying lawn vegetation, garden or other ground. Improvement ground creation method.