JP4041364B2 - Slope revegetation method using biodegradable greening bags - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an environmental conservation technique suitable mainly for use in the civil engineering / architecture field, and more particularly to a slope greening method using a biodegradable greening bag .
[0002]
[Prior art]
While tackling environmental issues on a global scale, the civil engineering and architecture fields are no exception, and efforts are being made to develop corresponding technologies, which continue to evolve.
Among them, most of the bags that contain earth and sand, vegetation base materials, and the like are required to be strong enough not to break, and thus are mostly made of ordinary plastic that is hardly decomposable.
For this reason, it has been pointed out that the bags that have been used for use are separated from the contained items, and are generated by incineration, landfilling, or the like, resulting in generation of harmful substances or remaining undecomposed in nature.
Thus, as an improvement technique, it has been proposed that the bag is made of a biodegradable material such as corn that can be decomposed by microorganisms in the soil.
[0003]
[Problems to be solved by the invention]
However, the biodegradable sheet, the biodegradable greening bag, and the slope greening method using the same have the following problems.
<A> Conventional biodegradable sheets are weak in strength, and particularly when they are formed in a bag shape and are filled with heavy materials such as earth and sand, the strength is extremely insufficient. Therefore, the use range of the bag formed from the biodegradable material is limited to the usage for storing a small amount of light weight.
<B> It is also unsuitable for stacking and storage due to its strength. Furthermore, if the storage environment of the bag is poor, the bag will be disassembled and the contents will come out.
<C> In the slope planting method using a hard-to-decompose bag for transporting the vegetation base material, it is necessary to separate the vegetation base material, resulting in poor workability, and associated labor costs.
<D> As environmental problems become serious, proposals for new technologies that focus on the reduction and recycling of industrial waste and that better meet social needs are desired.
[0004]
OBJECT OF THE INVENTION
The present invention has been made to solve the conventional problems as described above, without inhibiting the degradation, it is possible to impart moderate intensity, without being limited to the weight and quantity of contained object, wide The use of a biodegradable greening bag that can be used in a range, can be stacked and stored, and can withstand even in a somewhat adverse environment for the slope greening method makes it excellent in workability and vegetation. The purpose is to provide a slope planting method.
Another object of the present invention is to provide a slope planting method that uses biodegradable planting bags that focus on the reduction and recycling of industrial waste and that meet social needs.
The present invention achieves at least one of these objects.
[0005]
[Means for Solving the Problems]
To achieve the above object, slope greening method using biodegradable greening bag of the present invention, the slope greening method for greening by vegetation base material sprayed in layers, the biodegradable material A biodegradable material comprising a sheet base material formed into a sheet shape and a core material formed into a wire from organic fibers, wherein the sheet base material is integrally reinforced with a spaced core material. Using a sheet, using the biodegradable greening bag that forms the biodegradable sheet in a bag shape and accommodates civil engineering and building materials , and stores the vegetation base material in the biodegradable greening bag The vegetation base material is crushed together with the biodegradable greening bag at the site, and the vegetation base material is sprayed in a state where the cutting pieces of the biodegradable greening bag are mixed.
[ 0006 ]
The core material may be any one having a circular cross section, an elliptical diameter, or the like.
Here, as the form in which the sheet base material is integrated with the core material, for example, a form in which the core material is attached to the surface of the sheet base material via an adhesive or the like, and the core material is provided in the cross section of the sheet base material. It can also take the form of being inherent.
[ 0007 ]
In addition, the sheet form includes embodiments such as a film body, a cloth, or a net body, and is not particularly limited, but may be any structure as long as it is integrated with the core material as a biodegradable sheet and does not allow the contents to pass therethrough. .
[0008]
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1
Hereinafter reference sample to the drawings will be described et biodegradable sheet 10.
[0009]
<A> Configuration of biodegradable sheet (FIGS. 1 and 2)
The biodegradable sheet 10 is a flexible material in which a sheet base material 20 formed in a sheet shape and a core material 30 that forms a wire and is arranged at an interval are integrally formed.
The core material 30 is bonded to one surface of the sheet base material 20 via an adhesive or the like, and increases the strength of the sheet base material 20.
The core material 30 is arranged uniformly over the entire surface of the sheet base material 20.
As a result, the strength of the sheet exhibits the same physical properties in any part, and stress deviation can be prevented. Therefore, in such a form, it is effective when used especially for a long time.
The arrangement of the core material 30 is not particularly limited, and may be arranged so as to have a lattice shape or a single orientation, for example. When the core members 30 are arranged so as to intersect with each other, the shape of the gap formed so as to surround is not limited to a square but may be a rectangle or a rhombus.
When the core material 30 is knitted as described above, a strong resistance against the tensile force and force from the surface direction and out of the surface of the biodegradable sheet 10 is exhibited.
Furthermore, in order to give the biodegradable sheet 10 strong strength, the separation of the core material 30 may be reduced or / and the cross section of the core material 30 may be increased.
In addition, when the biodegradable sheet 10 is used for a temporary purpose, other forms may be used as long as a required strength can be obtained.
In addition, the magnitude | size of the biodegradable sheet | seat 10 can be made into the magnitude | size as needed.
Hereinafter, the configuration of each member of the biodegradable sheet 10 will be described in detail.
[0010]
<B> Sheet base material (Fig. 1)
The sheet substrate 20 can be freely deformed and is formed into a sheet shape, and is made of a biodegradable material.
It is more preferable that the sheet base material 20 is a flexible material rich in flexibility at room temperature and is easily changed into a liquid by heating and excellent in workability.
Here, biodegradable materials, for example, keep the same function as conventional nylon, etc., and after use, they are decomposed into low molecular weight compounds that do not adversely affect the environment by the action of microorganisms that exist in natural soil and water. It is a polymer that is eventually decomposed into inorganic substances such as water and carbon dioxide.
For this biodegradable material, for example, lactic acid taken from starch such as corn can be used. This lactic acid will eventually disappear in the soil, and even if it is incinerated, its combustion heat is low and no harmful substances are generated. It also has the convenience of
In addition, biodegradable polyurethane made from waste molasses remaining after refining sugar from sugarcane can also be used.
[0011]
The time during which the sheet base material 20 is decomposed by microorganisms is proportional to the thickness, density, and the like of the sheet base material 20 and is arbitrarily adjusted as desired.
Note that the biodegradable material is not limited to the above-described materials, and other materials can be used.
[0012]
<C> Core material (Figure 2)
The core material 30 supplements the strength of the sheet base material 20 and increases the strength of the biodegradable sheet 10 in combination with the sheet base material 20.
The core material 30 has a linear form and is made of an organic fiber that can be freely deformed. Here, the term “linear” includes any form such as a single fiber, a bundle of several fibers, or a twisted fiber.
For example, fibers such as hemp and palm can be used for the core material 30, but preferably the adhesiveness to the sheet base material 10 is good.
The core material 30 can be adjusted to an arbitrary strength by freely setting the diameter and the cross-sectional shape according to the use of the biodegradable sheet 10.
[0013]
Second Embodiment of the Invention
Next, another form of the biodegradable sheet 10 will be described.
As shown in FIG. 3, it is good also as a laminated structure which consists of three layers which has arrange | positioned the sheet | seat base materials 20 and 20 on both surfaces of the core material 30 knitted in the grid | lattice form.
The core material 30 and the sheet base material 20 are integrated using, for example, an adhesive.
In this embodiment, since the sheet base materials 20 and 20 are arranged in two layers, even if one sheet base material 20 is damaged, the sheet base material 20 has a role of ensuring the passage of the substance by another sheet.
[0014]
Further, when the core material 30 is knitted so as to form a small lattice, and the liquid is not used for integrating the members 20 and 30, for example, a binding wire is used, the core material 30 plays a role as a bundle material. As a result, a space is formed in a portion surrounded by the core materials 30 and 30 and the sheet base materials 20 and 20 (not shown).
Innumerable voids formed over the entire surface exhibit an elastic effect against external forces.
Moreover, the core material 30 and the sheet | seat base material 20 are not restricted to said number of sheets, respectively, It is good also as a form further superposed | polymerized.
[0015]
Embodiment 3 of the Invention
Next, another embodiment in which the biodegradable greening bag 40 is formed from the biodegradable sheet 10 described above and this bag body is used in the slope greening method will be described.
[0016]
<I> Formation of biodegradable greening bag Biodegradable greening in which only the upper mouth is opened as shown in FIG. 4 using any of the biodegradable sheets 10 described in the first or second embodiment. A bag 40 is formed.
A core material 30 may be used for a stitched portion that connects the sheets 10 and 10 together.
The pattern formed by the core material 30 of the completed biodegradable greening bag 10 may be arranged vertically or diagonally with respect to the edge of the biodegradable greening bag 40.
[0017]
Since the biodegradable sheet 10 is provided with a large strength by increasing the strength in the axial direction and the cross-sectional direction of the core material 30 by arranging the core material 30 over the entire surface, It is difficult to be restricted, and the allowable weight of the contained item and the size of the biodegradable greening bag 40 can be made arbitrary as compared with the conventional one.
[0018]
<B> Carrying into the site A state in which the vegetation base material 50 such as individual growth base materials, erosion prevention materials, and fertilizers sprayed on the slope is contained in the biodegradable greening bag 40 (both are packed 60 Bring it to the construction site.
Moreover, you may carry in to the spot in the state which mixed multiple types of materials in one bag.
[0019]
<C> Cutting the bag (Fig. 5)
The sachet 60 delivered to the site is put into the cutting machine 61 while the vegetation base material 50 is still contained in the biodegradable greening bag 40.
The biodegradable greening bag 40 is cut by a cutting machine 61, changed into small sheet pieces or short fibers, and mixed and stirred together with the vegetation base material 50 accommodated in the bag.
For this reason, in this construction method, the separation work which takes out the vegetation base material 50 from the biodegradable greening bag 40 as in the prior art becomes unnecessary.
The filling bag 60 containing the vegetation base material 50 is heavy, and the operation of opening the bag is extremely difficult, and a large number of people and a large amount of time are spent on this operation.
For this reason, the effect of deleting this process is great, and it is very economical because it leads to a shortened construction period and labor costs.
Conventionally, since the separated empty bags cannot be disassembled independently, processing such as incineration and landfilling is required by cutting them separately, but this is completely unnecessary in the present invention.
[0020]
<D> Spraying (Figure 5)
Thereafter, the seed 51 is mixed with the vegetation base material 50 that has been mixed with stirring, and the seed 51 is sprayed toward the slope with a sprayer 72.
In addition, the specification of the spraying machine 72 will not ask | require the kind, if the vegetation base material 50 can be sprayed or sprayed.
[0021]
<E> Stabilization of slope (Fig. 5)
After the sheet pieces of the biodegradable sheet 10 that have been mixed and stirred are sprayed onto the slope together with the vegetation base material 50, the form gradually changes in the soil with time.
The sheet base material 20 is decomposed by microorganisms and finally becomes an inorganic substance such as water or carbon dioxide. The sheet base material 20 is decomposed without affecting the water environment of the soil, the soil environment, and without affecting the growth of the plant.
The disappearance period of the sheet substrate 20 correlates with the thickness thereof, and the disappearance becomes faster as the thickness is thinner. Also, the finer the cut, the faster the disassembly.
The core material 20 becomes an organic fertilizer, nourishes the sprayed soil, and helps to grow vegetation.
[0022]
The cutting pieces are mixed in the vegetation base material 50 and entangled with each other.
Until the cutting piece disappears, a binding force is generated between the vegetation base material 50 and the effect of preventing the slope from collapsing.
This is more effective in preventing slipping immediately after being sprayed on the slope and on a steep slope.
The cut pieces are deformed small with time and eventually disappear, but the sprayed slope also increases stability as greening plants take root with time.
The size of the cut piece is more effective if it is determined using the period required for slope stability as an index.
These do not have any adverse effects in the disappearance process and ultimately do not retain their original form.
In addition, it is good to investigate the microorganisms which exist in construction soil beforehand, and to select the biodegradable material suitable for decomposition | disassembly.
Moreover, the material put in the biodegradable bag 40 is not limited to the vegetation base material 50 described above, and other various greening materials may be used alone or in a mixture.
[0023]
Embodiment 4 of the Invention
Although the said Example is a case where the biodegradable sheet | seat 10 is formed in a bag shape and is mainly used temporarily for conveyance, it can be utilized also for the sandbag etc. which are used over a fixed fixed period.
In this case, the disappearance period of the biodegradable biosheet 10 may be adjusted according to the purpose of use.
[0024]
Moreover, it can be used as a vegetation base by sowing soil and seeds on the biodegradable sheet 10.
[0025]
【The invention's effect】
Since the present invention has been described above, the following effects can be obtained.
<I> By arranging the core material on the biodegradable sheet, it is possible to ensure strong strength in combination with the sheet base material.
<B> For this reason, the biodegradable greening bag made of the biodegradable sheet is not easily limited by the weight and amount of the contents, and has a wide range of uses.
<C> Also, the biodegradable greening bag has a wide selection range in the storage method and storage environment.
<D> When using biodegradable greening bags for transporting vegetation base materials for slope revegetation methods, the biodegradable greening bags can be crushed together with the vegetation base material and sprayed to the slope without separation. Excellent workability, leading to labor cost reduction.
<E> The slope planting method using biodegradable greening bags made from biodegradable sheets eliminates the need for incineration and landfill disposal, and can meet the demands of society for reducing and recycling industrial waste. It becomes possible.
[Brief description of the drawings]
FIG. 1 is a perspective view of Embodiment 1 of a biodegradable sheet constituting a biodegradable greening bag .
FIG. 2 is a cross-sectional view of a biodegradable sheet according to Embodiment 1 that constitutes a biodegradable greening bag .
FIG. 3 is a cross-sectional view of Embodiment 2 of a biodegradable sheet constituting a biodegradable greening bag .
FIG. 4 is a perspective view of a biodegradable greening bag used in the present invention.
FIG. 5 is an explanatory view of an example of a method for cutting a biodegradable greening bag and a slope greening method according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Biodegradable sheet 20 ... Sheet base material 30 ... Core material 40 ... Biodegradable greening bag 50 ... Vegetation base material

Claims (1)

In the slope planting method of planting with vegetation base material sprayed in layers,
It is composed of a sheet base material formed into a sheet shape from a biodegradable material, and a core material formed into a wire from organic fibers, and the sheet base material is integrated with a core material arranged at intervals. Using a reinforced biodegradable sheet, using a biodegradable greening bag that accommodates civil engineering and building materials by forming the biodegradable sheet into a bag shape ,
Store the vegetation base material in the biodegradable greening bag and carry it to the site,
The vegetation base material is crushed together with the biodegradable greening bag at the site, and the vegetation base material is sprayed in a state where the cutting pieces of the biodegradable greening bag are mixed.
Slope greening method using biodegradable greening bags .

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