JPH11131484A - Vegetation base body and greening method of slope face using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a lattice-shaped swelling body inconspicuous by three-dimensionally greening a slope face, and also easily turn the slope face into a forest by constituting it of vegetation bags to house tree seeds and a rectangular sheet which is continuously arranged on the vegetation bags and has the upper side longer than a continuously arranged part. SOLUTION: In a rectangular sheet 9, pastural seeds 11 are sandwiched between water soluble sheet parts 10 and 10 formed of a material being highly soluble by moisture. Vegetation bags 12 are formed in a cylindrical shape out of the same material as the water soluble sheet parts 10, and are continuously arranged above the rectangular sheet in a vertically three stage condition, and tree seeds 13, a fertilizer, a soil improving agent and a water retentive agent are housed inside of them. The rectangular sheet 9 also has the upper side longer than a bending part (a continuously arranged part) 9a, and prevents falling-down of a vegetation base material from opening parts (a) of a net-like fence part 5a of a plant cultivating fence 5 by a rectangular front part 9c, and prevents falling-down of the vegetation base material from opening parts (a) of net-like fence parts 5b and 5b of the plant cultivating fence 5 by both side surface parts 9b and 9b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetation substrate and a method for greening a slope using the vegetation substrate.

[0002]

2. Description of the Related Art One of the methods for greening a naturally collapsed mountain skin, a thin mountain skin, or a mountain skin scraped off for road construction is to stretch a net on a slope to form a net. Reinforcing bars are installed in a grid, and mortar or concrete is sprayed on the bar-shaped reinforcing bars to form a grid-like swollen body, while plant seeds such as grass are for example organic compost, chemical fertilizer, plant There is a method of spraying a vegetation base material mixed with a conductive fiber, a water retention agent, a soil improvement material, and the like on a slope in a lattice-shaped frame surrounded by the above-mentioned swelling body.

[0003]

According to such a slope greening method, the grid-like swelling body prevents the vegetation base material from running off due to rainfall, thereby greening the slope. Is preferably achieved, but there is room for improvement in that the lattice-shaped swelling body, which is an artificial structure, is conspicuous even in the distance and deteriorates the natural scenery.

[0004] In the above-mentioned slope revegetation, it is preferable to make the slope a forest in order to achieve harmony with the surrounding landscape of the slope, permanent stabilization of the slope, and restoration to the natural world. For this reason, the introduction of trees to transplant tree seedlings and seedlings to the slopes may be implemented at the same time, but in order to make the rooting of the tree seedlings easier, it is necessary to dig deep labor. However, the digging work and the work of storing the vegetation base material in the hole are limited before the installation of the mesh, and the work procedure becomes complicated. is there.

[0005] In order to solve the above problems, the present invention is to achieve a three-dimensional greening of the slope to make the grid-like bulging body inconspicuous, and in addition, to easily form a tree on the slope. And a greening method for a slope using the vegetation substrate.

[0006]

That is, a vegetation substrate of the present invention comprises a vegetation bag containing at least tree seeds, and a rectangular sheet connected to the vegetation bag and having an upper side longer than the connection portion. Consisting of

[0007] In the slope greening method of the present invention, a mesh is stretched on the slope, a reinforcing bar is placed on the mesh in a grid, and a mortar is placed on the grid-shaped reinforcing bar. Or, in a revegetation method on a slope that sprays concrete to form a grid-shaped bulging body, a reinforcing bar with a large number of openings and a planting fence that forms a storage area for vegetation base material is installed in a grid. In the state of being adjacent to, it is raised and installed in a grid-like frame made of reinforcing bars, and then mortar or concrete is sprayed on the grid-like reinforcing bars to form a grid-like swelling body.
After installing the rectangular sheet of the vegetation substrate according to claim 1 or 2 inside the vegetation fence to prevent the vegetation base material from spilling from the vegetation fence through the opening. A vegetation base material is sprayed into a lattice-shaped frame formed by the swelling body and the planting fence, and a vegetation bag of the vegetation base material is placed on an upper surface of the vegetation base material.

[0008] Further, from another viewpoint, the revegetation method of the slope according to the present invention comprises stretching a net on the slope, installing reinforcing bars on the net in a grid, and using the grid. By spraying mortar or concrete onto the rebar, the planting fence that has a large number of openings and forms a storage area for the vegetation base material is formed by a grid In a state in which the vegetation base material is spilled from the planting fence through the opening, the vegetation base material is raised and installed in a lattice-shaped frame formed by the swelling body in a state adjacent to the swelling body formed at After the rectangular sheet of the vegetation base according to claim 1 or 2 is installed inside the planting fence to prevent the occurrence, the inside of the lattice-shaped frame by the swelling body and the inside of the planting fence. A vegetation base material is sprayed, and a vegetation bag of the vegetation base material is placed on an upper surface of the vegetation base material. To.

[0009] According to such a slope greening method and a vegetation substrate used in the method, tree seeds contained in a vegetation bag placed on the upper surface of the vegetation base material sprayed into the planting fence are germinated and germinated. In addition to growing, grass seeds germinate and grow from the rectangular sheet installed inside the planting fence through the many openings of the planting fence, making it a grid-like material that is substantially swollen. Tree seeds and grass seeds will germinate and grow three-dimensionally in the frame, and when the slope is viewed from directly below the slope, the lattice-like horizontal frame with swollen bodies will result in the three-dimensionally germinating and growing tree. And by being obscured by grass, the appearance of the slope becomes better in the landscape.

[0010] In this case, it is preferable that the planting fence is arranged along the lattice-shaped vertical frame in addition to the arrangement of the planting fence along the lattice-shaped horizontal frame formed by the bulging body. Germination
The growing plant is located on the side of the prominent bulge so as to cover the bulge as much as possible. The swollen body can be made inconspicuous even from a distance, and harmony with the surrounding landscape of the slope can be suitably achieved.

Tree seeds are stored in advance in the vegetation bag connected to the rectangular sheet, and the vegetation base material is also sprayed into the planting fence with the rectangular sheet installed inside the planting fence. The vegetation bag can be easily placed on the top surface of the vegetation base simply by bending the vegetation bag along the upper edge of the rectangular sheet, eliminating the need for difficult digging work that is restricted by the work procedure In this way, tree planting on the slope can be suitably achieved.

Further, by installing the rectangular sheet on the planting fence, it is possible to prevent the vegetation base material from spilling from the planting fence through the opening. In particular, a portion of the rectangular sheet connected to the vegetation bag that is longer on both sides than the connection portion can prevent the vegetation base material from falling off the side of the planting fence.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, first, a net 1 such as a synthetic resin net, a metal lath wire net, or a net is used.
Is stretched on the slope 2, and the short auxiliary anchor 3 a is cast to fix the mesh body 1.

One or more (two in the illustrated example, two upper and lower) rebars 4 are arranged on the mesh body 1 in a lattice pattern, and the rebars 4 are attached to the long main anchor 3b. Fixed by. 4a indicates a reinforcing bar installed in a horizontal direction, and 4b indicates a reinforcing bar installed in a vertical direction.

Next, a planting fence 5 prepared in advance is set up and installed below the reinforcing bar 4a along the reinforcing bar 4a. As shown in FIG. 3, the planting fence 5 is formed by folding an antiseptic wire mesh having a number of openings (a rectangular shape in the illustrated example, but any shape such as a diamond shape) a. However, it can be changed to a net made of a synthetic resin such as polyethylene having a large number of openings.

More specifically, in FIG.
Is composed of a rectangular meshed fence portion 5a along the reinforcing bar 4a, and triangular meshed fence portions 5b, 5b which are continuously provided on both left and right sides of the meshed fence portion 5a and whose lower edge is along the slope 2; An anchor 5c for piercing and fixing the slope 2 ...
It has. It should be noted that the reinforcing bar 4 is formed by using a connecting means such as a wire.
Alternatively, the planting fence 5 may be connected to the mesh body 1 and the planting fence 5 may be fixed to the slope 2.

Subsequently, the mortar or concrete 7 is placed on the reinforcing bar 4 so that the reinforcing bar 4 is buried.
(See FIG. 4) to form a grid-shaped bulging body 6. At this time, in order to prevent the reticulated body 1 surrounded by the bulging body 6 and the planting fence 5 located below the reinforcing bar 4a from being filled with mortar or concrete 7,
The curing sheet 8 is spread as shown in FIG. In addition, in order to eliminate the possibility of collapse, it is preferable that the spraying cover the connecting means of the planting fence 5. 6a shows a lattice-shaped horizontal frame of the bulging body 6, and 6b shows a lattice-shaped vertical frame of the bulging body 6.

Next, the curing sheet 8 is peeled off, and
As shown in FIG. 3, a vegetation bag 12 and a rectangular sheet 9 integrated with the vegetation bag 12 are installed inside the planting fence 5.

The rectangular sheet 9 is formed, for example, by pasting grass seeds 11 between two water-soluble sheet portions 10, 10, and the water-soluble sheet portion 10 is formed of a material that enhances solubility with water. Have been. That is, the water-soluble sheet part 1
No. 0 is composed of pulp fiber, polypropylene fiber and powdery or fibrous polyvinyl alcohol. Specifically, for example, a softwood pulp fiber is used, a 2-denier 5 mm-long polypropylene fiber is used as the polypropylene fiber, and a 1-denier 3 mm-long fiber is used as the polyvinyl alcohol. Preferably, the pulp fiber is added in an amount of 40.
%, And the addition ratio of the polypropylene fiber is 40%.
%, And the addition ratio of the polyvinyl alcohol is 2%.
It is preferable to set it to about 0 to 30%. In addition, as the polyvinyl alcohol, it is needless to say that a powdery polyvinyl alcohol can be used, and since the powdery polyvinyl alcohol is dissolved at normal temperature, the solubility of the water-soluble sheet portion 10 due to moisture in a normal temperature state is reduced. Can be increased.

As described above, since the polyvinyl alcohol is used in the water-soluble sheet portion 10, the polyvinyl alcohol is rapidly dissolved with the absorption of water, and the pulp fibers and the polypropylene fibers are in a dispersed state. The seed 11 is extremely excellent in germination and germination.

In this embodiment, a rectangular sheet 9 having grass seeds 11 sandwiched between two water-soluble sheet portions 10, 10 is used. That is, when the opening a is formed to be large, the rectangular sheet 9 may be a net or coconut mat that is formed so small that the passage of the pasture seeds 11 is not hindered.
It is preferable to prevent spillage of the pasty, and the pasture seeds 11 may be directly adhered to the net or palm mat.

The vegetation bag 12 includes the water-soluble sheet 1
It is formed by forming the same material as that of No. 0 into a cylindrical shape. In this embodiment, a bent portion (continuously provided portion) 9a is provided between the vegetation bag 12 at the lowermost stage and the front portion 9c of the rectangular sheet 9 in the upper and lower three stages above the rectangular sheet 9.
The vegetation bags 12, 12, 12 are continuously arranged via the. The inside of each vegetation bag 12 contains a tree seed 13, fertilizer, a soil conditioner, a water retention agent, and the like.

Further, the rectangular sheet 9 has an upper side longer than the bent portion 9a, and
c, and a side portion 9 that is longer on both sides than the bent portion 9a.
b, 9b. The front part 9c has a rectangular shape, and is formed to have substantially the same size as the rectangular mesh fence part 5a at the front part of the planting fence 5. Each side part 9b is also rectangular and has a rectangular shape. It is formed larger than the triangular mesh fence portion 5b at the side. And the front part 9c
Thus, the vegetation base material 14 can be prevented from falling off from the opening a of the mesh fence portion 5a of the planting fence 5, and the mesh fence portion 5 of the planting fence 5 can be prevented by the both side portions 9b, 9b.
b, 5bk The vegetation base material 14 can be prevented from falling off from the opening a.

The water-soluble sheet portion 1 of the rectangular sheet 9
A hardly soluble kaya ground may be joined to the vegetation bag 12 or the vegetation bag 12. The number of the vegetation bags 12 is not limited to three.

The tree seeds 13 accommodated in the vegetation bag 12
At least one of red pine, yashabushi, yamahagi, weasel, and komatsunagi is appropriately selected. The two water-soluble sheet portions 1 of the rectangular sheet 9
As the grass seeds 11 sandwiched between 0 and 10, at least one of gleaping red fescue, highland bentgrass, reddop, bermudagrass, Kentucky bluegrass and the like are appropriately selected.

Now, in the state shown in FIG.
2, a rectangular sheet 9 is installed inside the planting fence 5 and, as shown in FIG.
And in each of the lattice-shaped frames surrounded by the bulging body 6, for example, organic compost, chemical fertilizer, vegetable fiber, water retention agent,
A vegetation base material 14 mixed with a soil improvement material or the like is sprayed. Then, the lowermost vegetation bag 12 is bent and the three vegetation bags 12, 12, 12 are placed on the upper surface 14a of the vegetation base material 14.

According to such a slope greening method, the vegetation base material 14 is prevented from flowing out due to rainfall by the grid-like bulging body 6 and is sprayed into the planting fence 5. Vegetation bag 12, 1 placed on the upper surface 14a of the vegetation base material 14.
In addition to the germination and growth of the tree seeds 13 included in the plant fences 5, 12, the grass seeds 11 are also transmitted from the rectangular sheet 9 installed inside the planting fence 5 through the many openings a of the planting fence 5. Germinates and grows.

In this manner, the grid-like horizontal frame 6 of the
The tree seeds 13 and the grass seeds 11 germinate and grow three-dimensionally from the planting fence 5 in the lower part of a, so that when the slope 2 is viewed from directly below the slope, a lattice-shaped horizontal frame formed by the bulging body 6 6a
Is covered by the three-dimensionally germinated and grown trees and pastures, and furthermore, the grown trees and pastures are covered by the grid-like horizontal frame 6a, so that the appearance of the slope 2 is good in view. Becomes

Then, with the rectangular sheet 9 installed inside the planting fence 5, the vegetation base material 14 is also sprayed into the planting fence 5, and the vegetation bag 12 is formed along the bent portion 9 a.
The vegetation bag 12 can be easily placed on the upper surface 14a of the vegetation base material 14 simply by bending the vegetation base 14. In addition, by installing the rectangular sheet 9 on the planting fence 5, the planting fence 5 is opened through the opening a.
The vegetation base material 14 can be prevented from spilling down. In particular, the front portion 9 of the rectangular sheet 9 connected to the vegetation bag 12
The vegetation base material 14 can be prevented from falling off not only by c, but also by the side portions 9b, 9b.

It is to be noted that the planting fence 5 is connected to the lattice-shaped vertical frame 6
b, the trees and pastures that germinate and grow three-dimensionally around the planting fence 5 are wrapped around the swollen body 6, and the grid-shaped swollen body 6 is formed by the trees and pasture. It is possible to cover as long as possible.

As shown in FIG. 6, the planting fences 5 are installed in a contour line and every other grid-like horizontal frame 6a of the bulging body 6, or as shown in FIG. The planting fence 5 may be installed in the shape.

In each of the above-described embodiments, the moisture accumulated in the portion immediately above the grid-like horizontal frame 6a of the swelling body 6 is transferred to the vegetation bag 12.
Can be used, and the vegetation base material 14 is hard to dry due to the slight shade effect of the lattice-like horizontal frame 6a of the bulging body 6, so that the installation place of the planting fence 5 is changed. The lower part of the lattice-shaped horizontal frame 6a, that is, immediately below the lattice-shaped horizontal frame 6a, as shown in FIG. 8, the part immediately above the lattice-shaped horizontal frame 6a, that is, the upper part of the lattice-shaped horizontal frame 6a The planting fence 5 may be installed along the side. Further, the installation place of the planting fence 5 may be installed at an intermediate portion between the upper and lower horizontal frames 6a, 6a. Further, these may be combined.

Further, the planting fence 5 is installed after the mortar or concrete 7 is sprayed on the reinforcing bars 4 installed in a grid on the mesh 1 to form the grid-shaped bulging body 6. Is also good.

[0035]

The slope revegetation method according to the present invention is implemented in the form described above, and a planting fence is installed in a lattice-like frame formed by swelling, and a tree, By germinating and growing the grass seeds three-dimensionally, and by covering the artificial structure made of mortar or concrete with this tree or grass, the appearance of the slope can be made aesthetically pleasing, Harmony with the surrounding scenery is preferably achieved.

In particular, since the vegetation bag is provided so as to be able to be bent along the connecting portion of the planting fence with the rectangular sheet, the vegetation bag can be easily placed on the upper surface of the vegetation base material, and the work procedure can be improved. Tree planting to make the slope a forest can be suitably achieved without any difficult digging work which is restricted.

Further, by installing the rectangular sheet on the planting fence, it is possible to prevent the vegetation base material from falling off the planting fence through the opening.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a construction procedure of a slope greening.

FIG. 2 is a cross-sectional view showing a starting state of slope greening.

FIG. 3 is a perspective view of a planting fence and a vegetation base with a vegetation bag.

FIG. 4 is a view showing a sprayed state of mortar or concrete.

FIG. 5 is a diagram showing a sprayed state of a vegetation base material in a state where a vegetation base with a vegetation bag is installed inside a planting fence.

FIG. 6 is a view showing different installation states of a planting fence.

FIG. 7 is a view showing still another installation state of the planting fence.

FIG. 8 is a view showing still another installation state of the planting fence.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Reticulated body, 2 ... Slope, 4 ... Reinforcing bar, 5 ... Plantation fence, 6 ... Swelling body, 7 ... Mortar or concrete, 9 ... Rectangular sheet, 11 ... Grass seed, 12 ... Vegetation bag, 13 ... Tree seeds, 14: vegetation substrate, a: opening.

Claims (4)

[Claims] 1. A vegetation base comprising a vegetation bag containing at least tree seeds and a rectangular sheet connected to the vegetation bag and having an upper side longer than the connection portion. 2. The vegetation substrate according to claim 1, wherein the rectangular sheet is a vegetation sheet on which at least pasture seeds are adhered. 3. A net-like body is stretched on a slope, a reinforcing bar is placed in a grid on the net-like body, and mortar or concrete is sprayed on the grid-like reinforcing bar to form a grid-like expansion. In the revegetation method of the slope that forms the body, the planting fence that has a large number of openings and forms the storage area for the vegetation base material is placed next to the reinforcing bars installed in a grid, It is raised and installed in a frame-like frame, and then mortar or concrete is sprayed on a grid-like reinforcing bar to form a grid-like bulging body, and further, vegetation from the planting fence through the opening. Claim 1 to prevent the substrate from falling off.
Alternatively, after the rectangular sheet of the vegetation substrate according to claim 2 is installed inside the planting fence, a vegetation base material is sprayed into the lattice-shaped frame and the planting fence by the bulging body. A slope greening method, wherein a vegetation bag of the vegetation substrate is placed on an upper surface of a substrate. 4. A net-like body is stretched on a slope, a reinforcing bar is placed on the net-like body in a grid, and mortar or concrete is sprayed on the grid-like reinforcing bar to form a grid-like expansion. In the greening method of the slope that forms the emergent body, the planting fence that has a large number of openings and forms the storage area for the vegetation base material is expanded in a state in which the planting fence is adjacent to the lattice-shaped expanded body. The vegetation base material is raised and installed in a lattice-shaped frame formed by a protruding body, and subsequently, the vegetation base material is prevented from spilling from the planting fence through the opening, according to claim 1 or claim 2. After the rectangular sheet of the vegetation base is installed inside the planting fence, a vegetation base material is sprayed in the lattice-shaped frame and the planting fence by the bulging body, and the upper surface of the vegetation base material is sprayed. A slope greening method comprising placing a vegetation bag of a vegetation base.