JP2005068665A - Greening vegetative block - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a greening vegetative block which not only prevents a rolling phenomenon of plant roots, partial excessive growth of soil bacteria, and deflection of nutrients, but also facilitates production thereof and contributes to construction of a rigid greening vegetative foundation on a concrete slope surface even if the slope surface has rugged portions. <P>SOLUTION: The greening vegetative block 1A is formed of a hexagonal columnar body having a number of through holes 13 formed in each side surface 11 thereof. Then a number of the greening vegetative blocks 1A thus formed are collected together such that the side surfaces 11 adjacent to each other are connected together, to thereby produce a honeycomb vegetative block aggregate 4A. Then the thus produced honeycomb vegetative block aggregate 4A is arranged on the concrete slope surface and then fixed to the same by metal gauze, followed by spraying therein soil dressing in the form of slurry containing therein seeds, by means of a slurry pump, to thereby form the greening vegetative foundation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a greening vegetation block for constructing a greening vegetation base for planting grass and trees on concrete slopes such as roads, dams, and constructed land.
[0002]
[Prior art]
Various greening vegetation blocks have been proposed as greening vegetation blocks to be used for the greening vegetation method for planting grass and trees on a concrete slope.
[0003]
Typical examples are (a) concrete vegetation blocks that have a soil filling cavity and have the same slope as the slope, and lay this on mortar, (b) with slats The anchor is driven into the mortar surface at equal intervals, and the soil is piled between the upper and lower slats. (C) A large number of recesses are formed on the panel base of the biodegradable material, and seeds, fertilizers, absorbent polymers are formed in the recesses The panel can be laid down on the slope.
[Patent Document 1] JP 09-302686 A [Patent Document 2] JP 10-37220 [Patent Document 3] JP 10-248380 A
[Problems to be solved by the invention]
However, since the vegetation block described in JP-A 09-302686 of (a) is made of concrete, it is not only expensive to manufacture, but when the slope of the slope is large, the soil filling cavity for planting vegetation plants There is a drawback that the area of the vegetation is reduced, the risk of collapse of the vegetation block increases.
[0005]
Since the anchors with vanes described in JP-A-10-37220 in the above (b) need to perforate that number of mortar surfaces, the water that permeates from the drilled portion in the winter freezes and expands on the back surface of the mortar surface. There is a problem of destroying mortar.
[0006]
The panel base described in JP-A-10-248380 of (c) above is thought to have been developed for slopes with exposed soil such as gardens, river beds, slopes, and golf courses. It mentions that greening is possible directly on concrete surfaces other than soil.
[0007]
However, in the case of an actual concrete slope, the surface is not necessarily flat. When a panel base with such a large area is laid on an uneven concrete slope, the panel base and concrete A gap is created between the surface and rainwater circulates through the gap, preventing the connection between the panel base and the concrete surface and the settlement of the vegetation plant on the concrete surface. Therefore, it becomes necessary to dig the surface side of the concrete surface to some extent and then spread the panel base. Such destruction of the concrete surface significantly reduces the slope protection function.
[0008]
In addition, a hole is made in the bottom of the recess of this panel base, but there is no through hole in the side, so the root of the vegetation plant cannot extend in the lateral direction, causing a vegetation root roll phenomenon. At the same time as inhibiting the growth of the plant, the effect of strengthening the greening base by entangled the roots of adjacent plants cannot be expected.
[0009]
[Means for solving the problems]
Therefore, the present invention provides a greening vegetation block for forming a vegetation greening base that can solve the conventional problems and can greatly reduce cost and improve workability. That is, the greening vegetation block of the present invention is characterized in that it is composed of a columnar body having a hollow cross-sectional polygonal shape in which a top surface and a bottom surface are released and a plurality of through holes are provided on a side surface.
[0010]
If the greening vegetation block of the present invention formed from a columnar body having a polygonal cross section is connected to the adjacent side surfaces of adjacent greening vegetation blocks in an upright state, a honeycomb-like vegetation block aggregate is formed. A vegetation planting base can be formed very easily on the slope.
[0011]
The greening vegetation block of the present invention is a columnar body having a polygonal cross section, and the number of polygons is preferably a triangle or an octagon. A triangle is the minimum number that forms a polygon. A polygon having a larger number of sides than an octagon is not preferable because it approaches a circle, and the strength for receiving the expansion force of the customer soil packed in the greening vegetation block is reduced.
[0012]
In other words, since the triangular vegetation block has a small entrance area, it is difficult to enter into the case where the ground soil slurry is injected by the slurry pump. Therefore, voids are formed in the filled soil and the filling rate of the soil is reduced. When the entrance area is increased, the strength of the honeycomb-like vegetation block aggregate decreases.
[0013]
When a vegetation block having a rectangular shape is formed into a honeycomb-like vegetation block aggregate, its strength is weaker than that of a pentagon or a hexagon.
[0014]
The pentagonal vegetation block has a strong strength when it is made into a honeycomb-like vegetation block aggregate, and it is easy to enter the inside when the soil slurry is injected with a slurry pump. In addition, when a honeycomb-like vegetation block aggregate is formed, a diamond-shaped void is formed, but if the soil is sprayed in the final process, the soil is injected into the diamond-shaped void. There is no weakening. Furthermore, the presence of the diamond-shaped voids increases the flexibility of the block aggregate, and when it is placed on the uneven surface, the unevenness is absorbed and no gap is formed between the surface and the surface.
[0015]
The hexagonal vegetation block has the strongest strength when it is made into a honeycomb-like vegetation block aggregate. Furthermore, since the land soil slurry is easy to enter, the filling rate of the land soil is very high. Therefore, pentagonal and hexagonal vegetation blocks are most preferred as polygonal vegetation blocks.
[0016]
A large number of through holes are provided on the side surface of the greening vegetation block of the present invention. The number of the through holes needs to be drilled so that the total area of the through holes is 8% to 30% of the side surface area. When the total area of the through holes is less than 8% of the side area, the drainage of the gravitational water accumulated in the greening vegetation block is bad, which causes root decay of the vegetation plant planted therein. When the total area of the through holes is larger than 30% of the side surface area, gravity water flows out and water retention becomes worse, and at the same time, the strength of the greening vegetation block becomes unfavorable.
[0017]
The size of the greening vegetation block is preferably 3 cm to 20 cm in height and 5 cm to 20 cm in maximum diameter. When the height is lower than 3 cm, the volume for storing the soil is reduced, so that the netting of the plant is deteriorated, which is not preferable. If the height is higher than 20 cm, there is a possibility that if the soil is put on the slope, it will break down due to insufficient strength.
[0018]
When the maximum diameter is smaller than 5 cm, it is not preferable when the soil is sprayed, because the probability that the soil will enter the greening vegetation block is low and a void is easily formed. When the maximum diameter is larger than 20 cm, it is not preferable because the soil will flow out due to rainwater or wind, especially when the soil is accommodated on an inclined land.
[0019]
The most recommended size for hexagonal green vegetation blocks is 9-15 cm in maximum diameter, 5 cm, 10 cm, 15 cm in height. The necessity of making a three-level height will be described in the description of the honeycomb-like vegetation block assembly described later.
[0020]
In order to form this greening vegetation block, folds are formed at equal intervals perpendicular to the longitudinal direction of one rectangular plate, and folded along the folds to form polygonal columnar bodies. The number of folds is the same as the number of sides of the target polygon. The rectangular section (side surface) formed by the fold line is one more than the number of sides of the polygon. If the rectangular sections at both ends are overlapped as glue margins, a hollow columnar body having a hollow cross-section with the desired top and bottom surfaces released can be obtained.
[0021]
That is, in the case of a hexagonal columnar body, six folds are added. As a result, seven rectangular sections are formed. A hexagonal columnar body is formed by bending along the crease and overlapping the glue margins on both ends and fastening with glue or a stapler.
[0022]
The material of the greening vegetation block is selected from paper materials such as cardboard, cardboard, and recycled paper, wood materials such as wood, synthetic wood, and plywood, and plastic materials, or composite materials of these materials.
[0023]
Among these materials, particularly preferable materials are selected from the viewpoints of water retention, mechanical strength, freezing and fracture resistance, biodegradability, environmental pollution, ease of production, easy assembly on site, and cost. Of the paper-based materials, cardboard is most preferable because it is a material that can satisfy all of the above conditions. Although cardboard can be used, there are disadvantages in terms of cost. Recycled paper is slightly inferior in biodegradability.
[0024]
Synthetic wood is relatively preferable among wooden materials, but there are difficulties in terms of ease of manufacture and cost. Wood is slightly inferior in terms of manufacturing, on-site assembly, and cost. Plywood is superior in terms of strength, but inferior in terms of biodegradability, manufacturing, on-site assembly, and cost.
[0025]
Vinyl resin and foamed plastic can be used as the plastic material, but the biodegradability is poor and environmental pollution is not preferred. In that respect, a biodegradable plastic is preferably used. Biodegradable plastics are produced in various ways, including microbial biodegradable plastics, starch biodegradable plastics, cellulose biodegradable plastics, lactic acid biodegradable plastics, and polycaptolactone biodegradable plastics. However, any biodegradable plastic, or any biodegradable plastic not exemplified here, can be used.
[0026]
As another method of forming the greening vegetation block, there is a method by integral molding. The material used in this method is a plastic material such as paper pulp, wood chips or wood powder mixed with a binder which is a raw material of synthetic wood, and a plastic material. As the molding method, press molding or mold molding is used. In the case of a plastic raw material, injection molding can also be used.
[0027]
In the process of forming the honeycomb-like vegetation block aggregate, as a method of bonding the greening vegetation blocks, a method of bonding with an adhesive is generally applicable, but this method takes time for bonding, and the cost of the adhesive There are difficulties such as high. Therefore, the block made of paper material or soft plastic is the simplest way to stop the top and bottom with a stapler needle, and it is recommended because it is excellent in workability especially when assembled on site.
In the case of a wood material or hard plastic, a U-shaped metal connector can also be used.
[0028]
【Example】
Next, an embodiment of the present invention will be described with reference to FIG.
1A is an inclined view of the greening vegetation block of the present invention, and shows an example of a hexagonal columnar body with the top and bottom surfaces released. Reference numeral 11 is a side wall, 12 is a crease, 13 is a through hole, 14 is a glue margin joined to form a columnar body, and 15 is a stapler needle.
[0029]
As a standard size of the greening vegetation block 1A, 14 through-holes having a diameter of 1 cm are provided on a side surface 11 having a height of 15 cm and a width of 6 cm. Therefore, the ratio of the total area of the through holes to the side surface 11 is 12.2%.
[0030]
In order to form the greening vegetation block 1A, the rectangular cardboard board shown in FIG. 3 is provided with six folds 12 at regular intervals perpendicular to the longitudinal direction, and the section 11 partitioned by the folds 12 is provided. A large number of through holes 13 are drilled. A hexagonal columnar body is formed by bending along the fold line 12. The glue margins 14 and 14 at both ends of the paperboard are overlapped and stopped with a stapler needle 15 to form a greening vegetation block 1A.
[0031]
As a manufacturing method of the greening vegetation block of this invention, it can manufacture by integral molding using a plastic material. The greening vegetation block 1B manufactured by this method is formed as a hexagonal columnar body having no joint as shown in FIG.
[0032]
Next, the usage method of the greening vegetation block of this invention is demonstrated.
As shown in FIG. 4, first, two greening vegetation blocks 1 </ b> A are arranged, and the upper and lower two places are stopped by the stapler needle 16 with the side surfaces 11 in contact with each other. Thereafter, the honeycomb-like vegetation block aggregate 4A is formed in a honeycomb shape in the same manner.
[0033]
There are three types of greening vegetation blocks: tall vegetation blocks (for example, 15 cm in height), medium vegetation blocks (for example, 10 cm in height), and short vegetation blocks (for example, 5 cm in height). As shown in FIGS. 5 and 6, a honeycomb-like vegetation block aggregate 41 composed of tall vegetation blocks is arranged at the center on the concrete manufacturing surface 8, and a vegetation block having a medium height around it. The honeycomb-like vegetation block aggregates 42 constituted by short vegetation blocks are arranged on the outer periphery of the honeycomb-like vegetation block aggregates 42 constituted by the above.
[0034]
The main part of the vegetation-like vegetation block assembly configured as described above is temporarily fixed with the anchor 51, and then the entire surface is covered with the wire mesh 6, and the periphery thereof is fixed on the slope with the pin 52. Finally, the green soil vegetation base 7 is formed by spraying the soil containing the seeds and the like with a slurry pump.
[0035]
FIG. 7 shows a honeycomb-like vegetation block assembly formed by combining greening vegetation blocks 1C having a pentagonal cross section, and two types of vegetation block assemblies 4B and 4C are formed depending on the arrangement. In both cases, a diamond-shaped gap 44 is formed, but if the soil is sprayed by a slurry pump during construction, the soil is also filled in the gap, so that the strength of the honeycomb-like vegetation block aggregate is not affected.
[0036]
【The invention's effect】
Since the greening vegetation block of the present invention is configured as a hollow cross-section polygonal columnar body having a large number of through holes on the side surface with the top and bottom surfaces open, a large number of these greening vegetation blocks are arranged adjacent to each other. A honeycomb-like vegetation block assembly configured by joining the side surfaces of each other can form a strong green vegetation base without a gap between the slope and the concrete surface even if the slope is uneven.
[0037]
Since the greening vegetation block of the present invention is configured as a hollow cross-section polygonal columnar body having a large number of through holes on the side surface with the top and bottom surfaces open, a large number of these greening vegetation blocks are arranged adjacent to each other. Honeycomb vegetation block aggregates constructed by joining the sides of each other not only prevent vegetation root roll phenomenon, partial overgrowth of soil fungi, and nutrient bias, but also the roots of the vegetation plants can be A strong green vegetation base can be formed by intertwining with the roots of vegetation plants in the adjacent green vegetation block.
[0038]
If a water-retaining and biodegradable material such as paper material or biodegradable plastic material is used as the greening vegetation block of the present invention, it is possible to form a greening vegetation base with high resistance to drought damage and less environmental pollution. it can.
[0039]
As a material of the greening vegetation block of the present invention, it has several folds provided at equal intervals at right angles to the longitudinal direction of the plate material and a large number of through holes provided in a square area defined by the folds. By using a rectangular plate material, a greening vegetation block can be easily formed on site, so that the transportation cost of the greening vegetation block can be reduced and the construction cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a slope view of a greening vegetation block according to an embodiment of the present invention.
FIG. 2 is an inclined view of a greening vegetation block according to another embodiment of the present invention.
FIG. 3 is a plan view of a material forming the greening vegetation block of the present invention.
FIG. 4 is an explanatory diagram for forming a honeycomb-like vegetation block aggregate using the greening vegetation block of the present invention.
FIG. 5 is a plan view of a honeycomb-like vegetation block aggregate formed by the greening vegetation block of the present invention.
FIG. 6 is an explanatory view showing a greening vegetation base formed by the greening vegetation block of the present invention.
Fig. 7 is a plan view of a honeycomb-like vegetation block aggregate formed from pentagonal greening vegetation blocks.
[Explanation of symbols]
1A Greening Vegetation Block 11 Side 12 Fold 13 Hole 15 Stapler Needle 4A Honeycomb Vegetation Block Assembly 51 Anchor 6 Wire Mesh 7 Greening Vegetation Base

Claims (9)

A greening vegetation block comprising a hollow cross-sectional polygonal columnar body having a top surface and a bottom surface that are open and provided with a large number of through holes on a side surface. The greening vegetation block according to claim 1, wherein the polygon is any one of polygons selected from triangles or octagons. The greening vegetation block according to claim 2, wherein the polygon is a pentagonal or hexagonal polygon. The through-hole is drilled so that the total area of the through-hole provided in the side surface of the columnar body is 8% to 30% of the area of the side surface. Greening vegetation block as described in. The greening vegetation block according to any one of claims 1 to 4, wherein the columnar body has a height of 3 cm to 20 cm and a maximum diameter of 5 cm to 20 cm. The columnar body having a polygonal cross section includes several folds provided at equal intervals at right angles to the longitudinal direction of a rectangular plate material and a large number of through holes provided in a square partition defined by the folds. The green vegetation block according to any one of claims 1 to 5, which is formed by bending a rectangular plate material having a fold along the fold and joining glue margins at both ends. The rectangular plate material is formed of one or more materials selected from paper materials such as cardboard, cardboard, and recycled paper, wood materials such as wood, synthetic wood, and plywood, and plastic materials. The greening vegetation block according to claim 6. 6. The columnar body having a polygonal cross section is formed by integrally molding a plastic material such as paper pulp, synthetic wood raw material, or plastic material, according to any one of claims 1 to 5. Greening vegetation block. The greening vegetation block according to claim 7 or 8, wherein a biodegradable plastic is used as the plastic material.

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