JPS5820336B2 - Plant greening method - Google Patents

Description

[Detailed Description of the Invention] This invention is a novel method for greening the surface of a sloped base, such as bedrock, a rock surface after rock mining, or a hardened concrete body, with plants, where plants cannot normally be grown. This invention relates to a plant greening method.

Green plants are considered to be one of the most important things for human environmental health, but in recent years, the greenery of plants has been gradually disappearing due to human-induced destruction of nature due to industrial development and urban development. There is a strong demand for recovery measures.

Currently, there are various methods for greening existing soil and ground, but this method can be applied to areas where there is no soil, such as bedrock, rock surfaces after rock mining, and even the surface of hardened concrete. This is extremely rare and is considered an issue for environmental improvement.

As a measure to restore the greenness of plants, this invention uses the above-mentioned base, which normally cannot grow plants, as an object for greening, and creates new plants that can grow plants on its surface. It provides a greening method.

The plant greening method according to the present invention targets sloped bases, such as rock surfaces or hardened concrete bodies, on which plants cannot normally be grown, and applies coarse aggregate of a required size to cement paste on the base surface. Coarse coarse aggregate obtained by sprinkling with a binder such as tungsten or cement mortar is piled up, thereby forming a bank-like enclosure with continuous voids between the aggregates, and filling the enclosure with soil. , which is characterized by growing plants there.

Hereinafter, the present invention will be explained in detail based on the drawings showing embodiments thereof.

Figure 1 shows a hardened concrete body that forms a bank-like enclosure on a rock surface, and this is made by applying cement paste with a small water-cement ratio to the surface of coarse aggregate 1 of the required size. Alternatively, coarse aggregate obtained by sprinkling with a binder 2 such as cement mortar containing a small amount of fine sand is used, and by layering and solidifying this, the coarse aggregate is sprinkled through the binder. They are connected in a shape to form a hardened porous concrete body with continuous voids left between them.

Figure 2A, Figure 2B, and Figure 2C show a method for greening the surface of a sloped base, such as a flat surface or irregular gentle slope where plants cannot normally be grown, such as a rock surface or concrete. An example is shown.

In other words, 3 is a rock surface sloped foundation after rock mining, and 4 is a sloped foundation constructed of concrete.The above-mentioned coarse aggregate is laminated to the required height and continuously constructed to create a bank-like enclosure. 5, put soil 6 inside this enclosure, sow plant seeds in the soil 6, or transplant seedlings so that the greening of the slope base will be carried out by the growth of these plants 7. It has become.

The shape of the enclosure can be a regular shape, such as a trapezoid, a triangle, or a quadrangle, in flat and extensive terrain, but in irregular and discontinuous terrain, such as a rock surface after rock mining, the shape of the enclosure may be regular. As shown in Figure 2A, the embankment-like enclosure can be freely adapted to the undulations and slopes of the surface.

The soil is formed to hold the soil and prevent soil from being washed away during rain.

Furthermore, the enclosure does not necessarily need to be provided on the entire surface of the sloped foundation to be planted with greenery, but if a natural wall or the like can be used as part of the enclosure, the remaining portion may be used.

It would be better to set it in minutes.

In actual construction, the construction method for layering coarse aggregate on the foundation is to compact it by hand, or use a trowel-shaped tool that matches the cross-sectional shape of the enclosure.
There are methods such as pressing coarse aggregate or vibrating a trowel as needed to compact it.

In that case, if you spread a thin layer of cement paste (1) or mortar (8) on the base surface in advance, the adhesion between the sprinkled coarse aggregate and the base will be strengthened, and construction will be possible even on a somewhat sloped surface.

In addition, when looking at the strength of the hardened concrete that constitutes the soil enclosure, the strength of the hardened concrete decreases as its porosity increases, which is in a contradictory relationship with the drainage. Therefore, the porosity and strength should be determined taking these into consideration.
Its porosity and strength can be adjusted arbitrarily by appropriately selecting the water-cement ratio of the cement paste that serves as the binder and the mixing ratio of cement, fine sand, and coarse aggregate, thereby achieving the desired porosity and strength. A hardened concrete material with strength is obtained.

As for the plants used in the above-mentioned greening method, any kind of plants can be selected and used as appropriate, regardless of whether they are tall trees, herbs, or woody plants. Perennials and woody plants are drought tolerant;
Shrubs and shrubs that do not grow relatively deep are suitable, such as American meadowsweet, Japanese bush clover, Japanese cypress, Japanese pine, Japanese trumpet, Japanese oak, and ivy.

According to the above-described plant greening method, the following effects can be achieved.

(1) It is possible to easily green the surfaces of sloped foundations such as rock faces and hardened concrete bodies, where plants cannot normally be grown.

(2) By using Mabushi coarse aggregate, the enclosing part of the soil reservoir can be easily and economically constructed by hand on irregular surfaces such as rock surfaces without using formwork.

(3) By using Mabushi coarse aggregate, construction can be carried out at any location, regardless of size, depending on the unevenness, even on steeply sloping rock surfaces.

(4) The enclosure made of Mabushi coarse aggregate is a hardened concrete body with continuous voids, so the soil placed inside the enclosure has good drainage and rainwater does not accumulate excessively there. There is no risk of plant root rot, and a soil environment suitable for plant growth with appropriate water retention and ventilation can be permanently obtained.

(5) The enclosure made of coarse aggregate has excellent retaining performance and adhesion to additional soil, and is effective in preventing soil runoff due to wind and rain.

(6) When forming the enclosure with coarse aggregate,
By laying mortar between the base and the base, the adhesion and durability of the surrounding area can be strengthened.

As described above, according to the present invention, a sloped base such as a rock surface or a hardened concrete body, where plants cannot normally be grown, is targeted for greening, and coarse bone of a required size is added to the surface of the base. Coarse coarse aggregate obtained by sprinkling a binder such as cement paste or cement mortar on wood is piled up, thereby forming an embankment-like enclosure with continuous voids between the aggregates, and soil is poured into the enclosure. Because it is characterized by filling it with water and growing plants there, it enables the greening of sloped foundation surfaces such as rock surfaces and hardened concrete bodies, and restores the greenery of plants that have been lost due to artificial destruction of nature. can make a major contribution.

[Brief explanation of the drawing]

FIG. 1 is a partially enlarged sectional view of a hardened concrete material used as a soil enclosure, and FIGS. 2A, 2B, and 2C are explanatory diagrams showing an embodiment of the plant greening method of the present invention. In the drawings, 1 is coarse aggregate, 2 is a single layer of binder, 3.4 is a base, 5 is a soil enclosure, 6 is soil, 7 is a plant, and 8 is mortar.

Claims (1)

[Claims] 1 Sloped bases, such as rock surfaces or hardened concrete bodies, on which plants cannot normally be grown, are targeted for greening, and coarse aggregate of the required size is coated with a binder such as cement paste or cement mortar on the base surface. It is characterized by piling up the coarse aggregates obtained by sprinkling, thereby forming a bank-like enclosure with continuous voids between the coarse aggregates, filling the enclosure with soil, and growing plants there. A method of greening plants.