JPH086827Y2 - Sandbags for vegetation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a sandbag for vegetation capable of vegetation on a slope.

(Prior art) For slopes formed on the sides of roads or slopes such as newly constructed land, the method of growing plants, that is, the slope vegetation method, is adopted to prevent the slopes from collapsing. Has been done. This slope vegetation construction method is roughly classified into a so-called spraying construction method in which plant growth materials such as plant seeds and fertilizers are sprayed on the slope after formation, and the plant seeds are arranged in advance in the sandbag for forming the slope. There is a vegetation sandbag construction method. Vegetation sandbags are useful for vegetation on slopes in mountainous areas, for example, because vegetation sandbags can be used for vegetation on slopes without the need for large-scale equipment.

Heretofore, various types of sandbags for vegetation have been proposed, and in the past, there was a fact that, in the past, in Japanese Utility Model Publication No. Sho 42-18919, "Greening bag combining seed plates and net bags", in recent years 55-39939 gazette "vegetation sandbags for introducing trees" or "Vegetation bag" gazette of Japanese Utility Model Sho 57-38457.

By the way, these sandbags for vegetation that have been proposed so far have been used in terms of improving the germination conditions of plant seeds necessary for vegetation, but regarding the important "root" for plant growth. Is not used.

That is, in order for the seeds of the plant to germinate and grow to the extent that sufficient slope vegetation can be achieved, complete germination is a matter of course, and it is necessary for the roots of the plant to go deep into the soil outside the sandbag. is there. Otherwise, the nutrients in the sandbags alone are not enough to grow the vegetation plants sufficiently, and the roots of the plants do not go deep into the soil to provide adequate slope protection. is there.

For example, the "vegetation sandbag bag" proposed in Japanese Utility Model Publication No. 57-9480 has "a bag surface with a coarse anti-deteriorating fabric, and a bag bottom surface is expanded and continuous continuous fibers are laminated to form a history-free bag. Seeds and fertilizer are applied to a non-woven sheet composed of natural or chemical fibers on a part of the inner or outer surface of the rough cloth on the surface of the bag made of thermoplastic resin split fiber nonwoven fabric which is woven and assembled and heat-bonded. The vegetation sandbag that is made by attaching the supported vegetation zone is characterized by its structural characteristics. The "thermoplastic resin of the split fiber nonwoven material" used here is
"Hydrolysate, disintegration by soil microorganisms, and other materials that have high stability against deterioration changes in the soil are preferred.
Since it is a heat-meltable material such as polypropylene or a blend of polyester and polypropylene, the following irrationality occurs for the growth of vegetation plants. In other words, since this "vegetable sandbag" does not corrode in the soil simply because the "thermoplastic resin of the raw material of the split fiber nonwoven fabric" does not corrode in the soil, for example, as shown in FIG. It is to prevent the roots from entering. In other words, even if it germinates well, the roots of the plant only extend through the sandbag, disturbed by this "thermoplastic resin", which is corrosion resistant and can remain for a long time.
There is no deep root in the slope.

Therefore, the inventors of the present invention shall be able to sufficiently germinate the plant seeds placed in the sandbags for vegetation of this type and to allow the roots of the plants that have begun to grow sufficiently to extend into the slope. As a result of earnest studies on how to do so, I realized that it was very advantageous to construct the part of the sandbag for vegetation on the root side of the plant with a water-soluble material etc. is there.

Then, when various experiments were attempted based on this finding, the root side part of the sandbag for vegetation was dissolved in the soil or corroded by the action of soil bacteria depending on the growth of the root. Although very advantageous, I also noticed that the surface side of the sandbag for vegetation is easy to peel off from the slope because there is nothing to hold it against the slope. In other words, there is no problem if the slope is gentle and the growth of vegetation is sufficient, but if the slope is steep or the slope is relatively poor, the surface side of the vegetation sandbag is attached to the slope. If it is not in the state where it has been removed, it will peel off from the slope and the land that has just settled will be washed away,
I realized that it could become dirty on or around the slope.

(Problems to be Solved by the Invention) The present invention has been made based on the above-described background, and the problem to be solved is the inhibition of root development in the conventional sandbags for vegetation.

And the purpose of the device according to the first claim is
By forming the root-entry part with a material that easily dissolves or corrodes in the soil, it provides a vegetation sandbag with a simple structure that allows the vegetation plant to lower its root deep in the soil on the slope To do.

In addition, the purpose of the invention according to the second claim is
Vegetation that does not completely dissolve or corrode the part where the root enters and connects the part that will be the surface side of the slope for a long time so that the surface side part does not peel off from the slope Providing sandbags.

Further, the object of the invention according to the third claim is to configure a part of the backside sheet-like body which constitutes the sandbag for vegetation according to the first claim, or the sandbag for vegetation according to the second claim. A water-soluble thread string that is composed of a synthetic thread that is decomposed by microorganisms in the soil and disappears, and a sandbag bag for vegetation capable of further increasing the effect of the sandbag bag according to the first or second claim. To provide.

(Means for Solving the Problems) In order to solve the above problems, the means adopted by the invention according to the first claim will be described with the reference numerals used in the embodiments. The sheet-like body (11) and the backside sheet-like body (12), the water-soluble film (13) attached to the inner surface of the front-side sheet-like body (11), the water-soluble film (13) and the front-side sheet-like body ( 11) Plant seeds (14) necessary for vegetation such as slopes (20) sandwiched between them and necessary plant growing materials (1
5) In a sandbag for vegetation (10), the front sheet-like body (11) has a mesh that does not spill a large amount of soil and does not interfere with the germination of each child (14). And the warp yarns are made of a corrosion resistant material, and the backside sheet-like body (12) is composed of natural fibers such as hemp and jute, paper or synthetic fibers containing a water-soluble material, A sandbag for vegetation (1) characterized in that it corrodes or disappears faster than the front sheet (11)
0) ”.

That is, the sandbag for vegetation (10) according to the present invention basically comprises a front sheet-like body (11) and a backside sheet-like body (1).
2), a water-soluble film (13) attached to the inside of the front sheet (11) and seeds (14) sandwiched between the front sheet (11) and the water-soluble film (13), It is composed of materials necessary for growing plants such as fertilizers (15), but when the back sheet-like body (12) therein is buried in the soil, it will be corroded or disappeared after a certain period of time. It was done.

In constructing such a backside sheet-like body (12), natural fibers such as hemp and jute may be used to form a woven material or a net, and a water-soluble material is also included. Also when it is formed of synthetic fibers, it may be embodied as a woven material or a net.

Further, the means adopted by the device according to the second claim will be described with reference to the reference numerals used in the embodiments, "a front sheet-like body (11) and a back sheet-like body (12) constituting a bag, For vegetation such as water-soluble film (13) attached to the inner surface of front sheet-like body (11) and slopes (20) sandwiched between this water-soluble film (13) and front-side sheet-like body (11). Necessary plant seeds (14) and necessary plant growing materials (1
5) In a sandbag for vegetation (10), the front sheet-like body (11) has a mesh that does not spill a large amount of soil and does not interfere with the germination of each child (14). Water-soluble, the back sheet (12) is made of natural fibers such as hemp or jute, paper or synthetic fibers containing water-soluble materials. The water-soluble thread string (12a) is composed of a thread string (12a) and a drainage-soluble thread string (12b) formed of chemical fibers or the like connecting the water-soluble thread string (12a) to each other, and the water-soluble thread string (12a) is a front sheet-like body. It is a sandbag for vegetation (10) characterized by being corroded or disappeared faster than (11).

That is, the sandbag for vegetation (10) according to the present invention basically comprises a front sheet-like body (11) and a backside sheet-like body (1).
2), a water-soluble film (13) attached to the inside of the front sheet (11) and seeds (14) sandwiched between the front sheet (11) and the water-soluble film (13), It is the same as the sandbag (10) for vegetation according to the first claim that it is composed of a material necessary for growing plants such as fertilizer (15), but the backside sheet-like body ( 1
When part of 2) (in this case, the water-soluble string (12a)) is buried in the soil, it will be corroded or disappeared after a certain period of time.

In constructing such a backside sheet-like body (12), it is necessary that the water-soluble thread string (12a) and the non-water-soluble thread string (12b) form warp or weft threads of the mesh. As the water-soluble thread string (12b), when the water-soluble thread string (12a) is dissolved or corroded, the front sheet-like body (11) is sloped (20).
It should be adopted as a space or amount that can be held so as not to be peeled off from it. Then, this sandbag for vegetation (10) employs, as the water-soluble thread string (12a), a natural fiber such as hemp or jute that is decomposed by microorganisms in the soil and disappears, or a synthetic fiber. . The back sheet-like body (12) is a woven material as a whole or a net body as in the embodiment.

Further, the means adopted by the device according to the third claim is the same as the above, "a part of the back sheet (12) or the water-soluble string (12a) is decomposed by microorganisms in the soil and disappears. The sandbag for vegetation (10) according to the first or second aspect, characterized in that it is made of synthetic yarn.

That is, the sandbag for vegetation according to the third claim (1
In (0), at least a part of the backside sheet-like body (12) of the vegetation sandbag (10) according to the first claim, or the water-soluble string (12a) of the vegetation sandbag (10) according to the second claim. ) Is composed of a synthetic thread that is decomposed by microorganisms in the soil and disappears.

(Mode of operation and mode of use of the device) First, the sandbags (10) for vegetation according to each claim are processed by a general method, that is, sand is put in the sandbags, and the sandbags are shown in FIGS. 1 and 5. As shown in FIG. 5, the sheet-like body (11) is arranged on the slope (20) so that the front side sheet-like body (11) becomes the upper surface. It is natural that the front-side sheet-like body (11) and the back-side sheet-like body (12) maintain their shapes due to their inherent strength during the soil filling work and the arrangement work on the slope (20). In addition, in FIG. 1, the mesh of the vegetation sandbag (10) is arranged so as to be oblique (inclination of 45 °) with respect to the horizontal line, but the vegetation sandbag (10) is in a horizontal state. It may be arranged.

When water is supplied to each of the sandbags (10) for vegetation arranged on the slope (20) in this way, such as by rain, the water-soluble film (13) is first dissolved, and the seeds are thereby dissolved. (14) is in direct contact with the soil in the sandbag (10) for vegetation. Then, the various children (14) who sucked this water start to germinate and at the same time start rooting in the soil in the vegetation sandbag (10). In this case, the sprouts from each child (14) pass through the mesh of the front sheet-like body (11), etc. to the slope (20).
It appears on the upper side of. In general, the buds of a plant at the time of germination have a considerably strong force and have tropism, and therefore the buds pass through the mesh of the front sheet-like body (11) ( It surely appears on the upper surface side of 11).

Here, in the sandbag for vegetation according to the first claim,
Since the back sheet-like body (12) is made of a natural material such as hemp or jute, paper or a synthetic resin material containing a water-soluble material, the sandbag (10) for vegetation is placed on the slope (20). Corrosion or dissolution starts from the time of placement depending on the environmental conditions. Therefore, when the roots of the germinated varieties (14) reach the back sheet-like body (12) or after the roots have been sufficiently stretched in the soil of the vegetation sandbag (10), the back sheet-like shape is obtained. The body (12) facilitates the passage of the roots of vegetation plants. That is, the root of the vegetation plant can be sufficiently stretched through the back sheet-like body (12) as shown in FIG.

As a result, in the vegetation sandbag construction method that employs the sandbag for vegetation (10) according to the invention of the first claim, various children (14) sandwiched inside the front sheet-like body (11).
However, not only can it germinate sufficiently, but its roots can be laid deep in the soil on the slope (20).

In addition, the back sheet-like body (12) of the sandbag (10) for vegetation according to the second claim is a water-soluble thread string (12) formed from natural material such as hemp or jute, paper or synthetic fiber containing water-soluble material ( Since it has 12a), the water-soluble string (12a) starts to corrode or dissolve at the time when the sandbag (10) for vegetation is arranged on the slope (20). Therefore, when the roots of the germinated varieties (14) reach the back sheet-like body (12) or after the roots have been sufficiently stretched in the soil of the vegetation sandbag (10), the back sheet-like shape is obtained. The body (12) consists of only the water-insoluble thread string (12b), which facilitates the passage of roots of vegetation plants.
That is, as shown in FIG. 5, the root of the vegetation plant has the water-insoluble thread string (12) which constitutes the back sheet (12).
It can be stretched through b).

As a result, in the vegetation sandbag construction method employing the sandbag bag for vegetation (10) according to the second claim, the various elements (14) held inside the front sheet-like body (11) are
Not only can it germinate well, but its roots are sloped (20)
It can be stretched deep into the soil.

Further, in the back sheet-like body (12), even after the water-soluble thread string (12a) disappears due to dissolution or corrosion, the water-insoluble thread string (12b) remains and the front sheet-like article ( Since the periphery of (11) is connected, the front sheet-like body (11) of this sandbag for vegetation (20)
Is firmly attached to (20) on the slope. Therefore, the front sheet-like body (1
1) does not peel off from the slope (20) even after most of the back sheet (12) has disappeared, reliably preventing the soil from escaping, and also for this vegetation. The sandbag (20) does not pollute the slope (20) or its surroundings.

And in the sandbag (10) for vegetation according to the third claim, at least a part of the backside sheet-like body (12) of the first claim, or the water-soluble string (12a) of the second claim, Since it is composed of synthetic yarn that is decomposed by microorganisms in the soil and disappears, it has sufficient strength and does not easily break during or after construction. Microorganisms (such as bacteria in soil that are called bacteria, bacteria, filamentous fungi, actinomycetes, etc.) are decomposed and disappear to promote the invasion of native species in the field, and lawn mowers, etc. You don't have to worry about damaging your brush cutter.

(Example) Next, the sandbag for vegetation (10) which concerns on each invention is demonstrated in detail according to the Example shown in drawing.

FIG. 1 shows a state in which the sandbags made by the vegetation sandbags (10) according to the respective inventions are arranged on the slope (20). This vegetation sandbag (10) is shown in FIG. ~ It has a structure as shown in FIG.

That is, this sandbag for vegetation (10) includes a front sheet-like body (11) and a back sheet-like body (12) which form the bag,
For vegetation such as water-soluble film (13) attached to the inner surface of front sheet-like body (11) and slopes (20) sandwiched between this water-soluble film (13) and front-side sheet-like body (11). It is composed of necessary plant seeds (14) and necessary plant growing material (15), and a part of it is formed with an opening for putting soil and making a sandbag. In the embodiment shown in FIG. 2, the opening edge portions of the front sheet-like body (11) and the back sheet-like body (12) forming the opening and the upper portion of the front side sheet-like body (11) are covered. An open lid (16) is formed, and after putting the soil in the sandbag (10) for vegetation, the open lid (16) covers the sandbag to prevent the soil from spilling. is there.

The front sheet-like body (11) is formed by a mesh body having a mesh that does not spill a large amount of soil therein and does not hinder the germination of each child (14). By making it corrosion resistant, the warp prevents the soil in the sandbag (10) for vegetation from running off from the slope (20) even if other parts are corroded or disappeared. is there. Of course, the front side sheet-like body (11) may be entirely constructed of a corrosion resistant material, but a part of the front side sheet-like body (11) will be described in detail below. It may be implemented by using a material having the same corrosiveness or disappearance as the constituent material of 12). In this case, it is possible to minimize the presence of substances that interfere with the germination of the various children (14), so that the germination of the various children (14) can be performed even better.

The back-side sheet-like body (12) has the following structure for each claim. First, in the sandbag (10) for vegetation according to the first claim, after a certain period of time, it is configured to be corroded or disappear by the action of water, soil bacteria, soil microorganisms, etc. The back sheet-like body (12) is made of natural fibers such as hemp and jute, paper, or synthetic resin containing a water-soluble material. In the back side sheet-like body (12) of the present embodiment, the whole is formed of the above material. For example, the weft is made of the above-mentioned material having corrosiveness or disappearance, and the warp connecting these wefts. Was formed as a net body of a material having excellent corrosion resistance. By doing so, the weft thread portion of the back sheet-like body (12) is corroded or disappears over time, but the warp threads remain in the slope surface (20), so that the root surface of the vegetation plant ( 20) The inside can be sufficiently stretched and the runoff of the soil put in the sandbag (10) for vegetation from the slope (20) can be prevented. Of course, the materials of the weft thread and the warp thread may be reversed from those described above.

Further, the back sheet-like body (12) of the sandbag (10) for vegetation according to the second claim is, as shown in FIG. 7, an action of water, soil bacteria, soil microorganisms, etc. after a certain period of time. Water-soluble string (12a) formed so as to be corroded or disappear by
And the water-soluble thread string (12a) and the front sheet-like body (11)
And a water-insoluble thread string (12b) formed of chemical fibers or the like that are connected to each other and have corrosion resistance, and are woven in a mesh shape. Therefore, this back sheet-like body (12)
The water-soluble string (12a) is made from natural fibers such as hemp and jute,
It is formed of paper or a synthetic resin material containing a water-soluble material. That is, in the back side sheet-like body (12) of the present embodiment, for example, the weft thread is composed of the water-soluble thread string (12a) having the above-mentioned corrosiveness or disappearance property, and the water-insoluble thread that connects these weft threads. String (12
b) was formed as a net body with a material having excellent corrosion resistance. By doing so, the back sheet-like body (12)
Although its weft part is corroded or disappears with the passage of time, its warp threads remain on the slope (20), so that the root of the vegetation plant can be sufficiently stretched into the slope (20), and the vegetation sandbag is used. Bag (10) and soil slope (20)
It is possible to prevent the runoff from people. Of course, the materials of the weft thread and the warp thread may be reversed from those described above.

Furthermore, at least a part of the backside sheet-like body (12) constituting the vegetation sandbag (10) according to the first claim configured as described above, or the vegetation sandbag (1) according to the second claim.
The water-soluble string (12a) that composes 0) is decomposed by microorganisms such as miscellaneous bacteria present in the soil (miscellaneous bacteria in the soil are called bacteria, and include bacteria, filamentous fungi, actinomycetes, etc.) A vegetation sandbag (10) according to the third aspect is constituted by the disappearing synthetic yarn.

Furthermore, sandbags for vegetation placed on the slope (10)
It may be configured and implemented so that the side surface of the part partially remains. In this case, runoff such as sediment on the slope can be prevented by this side, and the root tension of trees that become taller as a vegetation plant can be made deeper to further protect the slope. Is what you can do.

(Effect of the invention) As described in detail above, the sandbags for vegetation (1
In (0), the back side sheet-like body (12) constituting this
Is composed of a corrosive or vanishing material, the vegetation plant lowers the root deep in the soil on the slope by forming the part on the root entry side with a material that easily corrodes in the soil. A sandbag for vegetation can be provided with a simple structure.

In other words, if the vegetative sandbag construction method using each vegetation sandbag (10) is carried out, the various vegetation (14) in the vegetation sandbag (10) will not only germinate sufficiently, but also the roots of the vegetation plant. When it reaches the back sheet (12), or after it has spread sufficiently into the soil in the sandbag for vegetation (10),
It is possible to allow the roots of the vegetation plants to sufficiently pass through the back-side sheet-like body (12), whereby the growth of the vegetation plants themselves can be made sufficient, and the roots of the vegetation plants can be sloped. Since it is possible to extend deep into the soil of (20), the slope (20) can be reliably protected.

Particularly, according to the sandbag (10) for vegetation according to the second claim, the back sheet-like body (12) has a water-insoluble thread string (12b).
Since only the water-soluble thread string (12a) disappears in the state where the water-soluble thread string (12b) remains, the water-insoluble thread string (12b) becomes
1) can be firmly held against the slope (20). Therefore, at the initial stage of the dissolution or corrosion of the water-soluble thread string (12a) in the back sheet (12), runoff from the slope (20) of the soil in the sandbag (10) for vegetation that has not yet settled. Not only can it be prevented, but the slope (20) and its surroundings will not be polluted.

Further, according to the device of the third claim, after the seed has germinated and grown and the construction surface is stable, it has sufficient strength and is not easily broken during or after construction. Microbes (Miscellaneous bacteria in soil are called bacteria, and they are decomposed by bacteria, filamentous fungi, actinomycetes, etc.) and disappear, promoting the invasion of native species in the field and using lawnmowers and other brush cutters. It is possible to provide a sandbag (10) for vegetation that does not have to be damaged.

[Brief description of drawings]

1 is a partial front view showing a state in which sandbags formed by using the sandbags for vegetation according to the present invention are arranged on a slope, and FIG. 2 is a front view of a sandbag for vegetation according to the present invention, 3 is a sectional view taken along the line III-III in FIG. 2, and FIG.
Fig. 5 is a partial enlarged cross-sectional view of the IV-IV line part of the figure, Fig. 5 is a partial cross-sectional view of the slope showing the root condition of the vegetation plant when vegetation is carried out with this sandbag for vegetation, and Fig. 6 is conventional Fig. 5 is a partial cross-sectional view corresponding to Fig. 5 when vegetation is carried out using the sandbag of Fig. 7, and Fig. 7 is a partially enlarged plan view of the back sheet-like body constituting the sandbag for vegetation according to the present invention. is there. Explanation of symbols 10 …… Sandbags for vegetation, 11 …… Sheets on the front side, 12 ……
Backside sheet, 12a …… water-soluble thread, 12b …… water-insoluble thread, 13 …… water-soluble film, 14 …… seed, 15 …… fertilizer, 20 …… slope.

Claims (3)

[Scope of utility model registration request] 1. A front side sheet-like body and a back side sheet-like body forming a bag, a water-soluble film attached to the inner surface of the front side sheet-like body, and a water-soluble film and the front-side sheet-like body sandwiched between the water-soluble film and the front side sheet-like body. In a sandbag for vegetation provided with plant seeds necessary for vegetation such as slopes and necessary plant growing materials, the front side sheet-like body, in which a large amount of soil does not spill, and the germination of the seeds Formed of a mesh having a mesh that does not interfere with, and, for example, the warp is made of a corrosion resistant material, the back side sheet-like body is made of natural fibers such as hemp and jute, paper or synthetic fibers containing a water-soluble material. Composed by
A sandbag for vegetation characterized in that it decays or disappears faster than the front sheet. 2. A front side sheet-like body and a back side sheet-like body forming a bag, a water-soluble film attached to the inner surface of the front side sheet-like body, and a water-soluble film sandwiched between the water-soluble film and the front side sheet-like body. In a sandbag for vegetation provided with plant seeds necessary for vegetation such as slopes and necessary plant growing materials, the front side sheet-like body, in which a large amount of soil does not spill, and It is formed of a net having a mesh that does not interfere with germination, and its warp, for example, is made corrosion-resistant, and the backside sheet is made of natural fiber such as hemp or jute, paper or a synthetic material containing a water-soluble material. A water-soluble string formed by fibers and a non-water-soluble string formed by chemical fibers or the like connecting the water-soluble string to each other so that the water-soluble string corrodes faster than the front sheet-like body. Or erase Vegetation for sandbags, characterized in that those with the. 3. The first or second aspect of the present invention, wherein a part of the back sheet or the water-soluble thread string is composed of a synthetic thread which is decomposed by microorganisms in soil and disappears. Sandbags for vegetation.