JP3119594U - Duvet for futon - Google Patents

Abstract

[Problem] To provide a futon bed for stacking which can realize long-term greening by suppressing the outflow of vegetation base material with a simple structure.
SOLUTION: A box-shaped ridge body and an earth and sand outflow prevention sheet attached to a part of the ridge body, and the ridge body is rotatable on a rectangular bottom mesh and opposite sides of the bottom mesh, respectively. Consists of connected front net, rear net, side net provided on one side of the bottom net, and front flat net provided on the upper side of the front net. The earth and sand outflow prevention sheet was attached to the substantially U shape over the three surfaces, or in the substantially L shape over the two surfaces of the bottom net and the front net.
[Selection] Figure 1

Description

The present invention relates to a futon wall for terraces that protects rivers, lakes and various slopes.

As one of the river revetment methods, a method of constructing a heavy-weight retaining wall by stacking metal mesh duvets in a staircase while clogging is widely known.
This revetment retaining wall is against the water flow by the weight of a plurality of futon beds for stacking, and uses a good quality cobblestone to ensure proper water permeability.
On the other hand, the revetment retaining wall using a futon wall for terraces has a problem of aesthetics because the wire mesh is exposed as it is, and from the viewpoint of the recent emphasis on the natural environment, Is also required to actively plant trees.
In response to this request, for example, the following greening method for revetment retaining walls has been proposed.
(A) A method of greening by attaching a greening sheet containing seeds and fertilizer to the inside of a rod.
(B) A method in which seed-containing vegetation clay is housed in the front part of the terraced futon basket and a padding stone is housed in the rear part thereof so that the front surface of the terraced futon basket is greened (Patent Document 1).

JP2003-232023

The conventional revetment greening technology has the following problems.
(1) In the case of using a greening sheet containing seeds, there is not enough vegetation base material for plants to settle, so even if short-term transient greening can be realized, long-term natural Cannot expect greening.
(2) The method of using vegetation sandbags has the risk of losing the revetment due to the storage of vegetation sandbags, sacrificing the original water permeability of the danto futon baskets, and facilitating the drainage of danto futon baskets when the water increases. is there.
(3) Regardless of the method, the conventional greening technique has a common problem that the cost is high and the construction requires a lot of labor and time.

The present invention has been made in view of the above points. The purpose of the present invention is to achieve a long-term greening with a simple structure that can suppress the outflow of vegetation base material due to rain or running water. To provide futons.

The first device of the present application is a futon bag for stacking that is built up in a staircase shape to construct a retaining wall, and is composed of a box-shaped bag body and a sediment discharge prevention sheet attached to a part of the bag body,篭 The main body is provided on the rectangular bottom mesh, the front straight mesh connected to the opposite sides of the bottom mesh, the rear straight mesh, the side mesh provided on one side of the bottom mesh, and the upper side of the front straight mesh. It is a futon casket for stacking, which is composed of a front flat mesh, and is provided with an earth-and-sand outflow prevention sheet in a substantially U-shape over the bottom net, front straight net, and front flat net of the main body. .
The second device of the present application is a futon bag for stacking that is built up in a staircase shape to construct a retaining wall, and is composed of a box-shaped bag body and a sediment discharge prevention sheet attached to a part of the bag body,篭 The main body is provided on the rectangular bottom mesh, the front straight mesh connected to the opposite sides of the bottom mesh, the rear straight mesh, the side mesh provided on one side of the bottom mesh, and the upper side of the front straight mesh. It is a futon basket for stacking, which is composed of a flat front net and is provided with an earth and sand outflow prevention sheet in a substantially L shape over the two surfaces of the bottom net of the main body and the front straight net.
The third device of the present application is a futon casket for stacking that is built up in a staircase shape to construct a retaining wall, and includes a box-shaped cocoon body, and a sediment discharge prevention sheet attached to a part of the cocoon body,篭 The main body is provided on the rectangular bottom mesh, the front straight mesh connected to the opposite sides of the bottom mesh, the rear straight mesh, the side mesh provided on one side of the bottom mesh, and the upper side of the front straight mesh. It is composed of a front flat net, and is provided with an earth and sand outflow prevention sheet over one side of the front flat net of the main body,
It is a futon for futon.
The fourth device of the present application is the first to third devices, wherein the sediment prevention sheet is one of a plant material, cloth or paper, a biodegradable material, and a resin yarn, and is a mat or sheet. It is a futon for stacking, characterized in that it is formed as described above.

The present invention can obtain the following specific effects.
(1) For the construction work of the retaining wall constructed by stacking the bedded futons with the earth and sand outflow prevention sheet attached to a part of the body in advance, the stepped part on the front of the retaining wall is used as the vegetation base material. Therefore, the cost and time required for construction can be greatly reduced, and the economic efficiency and workability can be greatly improved compared with the conventional retaining wall greening technology.
(2) Since the earth and sand outflow prevention sheet regulates the permeation of the vegetation base material by rainfall or running water, the vegetation base material can be stably held over a long period of time on the stepped portion on the front surface of the retaining wall.
Therefore, not only short-term greening but also long-term greening can be realized.
(3) Since the earth and sand spill prevention sheet is only attached to a part of the main body of the bag, there is no fear of sacrificing the water permeability of the futon bag for stacking.
Therefore, when the retaining wall is a revetment retaining wall, it is possible to maintain both the protection of the revetment and the greening of the revetment retaining wall while maintaining good water permeability of the futon wall.
(4) Even if it is not covered with the vegetation base material until the entire area of the stepped portion of the futon wall for layering is hidden, the exposed stepped portion on the front surface of the retaining wall can be visually shielded using the overgrowth of the plant. Can be realized.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

[Main materials]

(1) A futon basket for stacking FIG. 1 shows an example of a futon basket 10 for stacking according to the present invention.
The stacking futon basket 10 is composed of a metal mesh cocoon body 20 and a sediment discharge prevention sheet 30 attached to a part of the cocoon body 20.

(2) Hail body The illustrated hull body 20 includes a rectangular bottom net 21, a front straight net 22, a rear straight net 23, and a bottom net 21, which are rotatably connected to opposite sides of the bottom net 21, respectively. This is a known housing having a side net 24 provided on one side and a front flat net 25 which is a lid connected to the upper side of the front straight net 22. A partition net (not shown) parallel to the side net 24 may be added to the bag main body 20 as needed.

The front flat net 25 eliminates the waste of the material overlapping the net material of the upper main body 20 when the main body 20 is stacked stepwise by shifting the position of the front main body 25 by the width of the front flat net 25. The width dimension is determined by the gradient of the heel body 20.
The front flat net 25 is preferably connected to the front direct net 22 at a factory or the like in advance, but may be retrofitted on site.
In addition, the uppermost ridge body 20 is such that the front flat mesh 25 that is a lid is the same size as the bottom mesh 21.

The main body 20 is made of a mesh material such as a rhombus wire mesh, a welded wire mesh, a turtle shell wire mesh, or a synthetic resin net. If it is.
In addition, the dimension of each part of the bag main body 20 is selected suitably, and is not limited to the illustrated form.

(3) Sediment runoff prevention sheet The sediment runoff prevention sheet 30 is a sheet for preventing the runoff of the earth and sand 50 serving as a vegetation base material as will be described later. It has the property to have sex.
Here, “hardly permeable” does not mean complete blocking of the earth and sand 50 but means a property that allows some penetration of the earth and sand 50.

If it is only necessary to prevent the permeation of earth and sand, it is sufficient to form the main body 20 using a mesh material having a small mesh. However, if a mesh material having a small mesh is used, it is difficult to ensure strength and the cost is high. There are some difficulties.
Therefore, in the present invention, the known fusible body 20 and the permeation preventive member of the earth and sand 50 are divided into separate members to constitute the futon bag 10 for stacking.
Therefore, it is desirable to use a material that is as easy to obtain as possible and inexpensive as the material of the sediment runoff prevention sheet 30. For example, the following materials can be used.

<a> A mat or sheet formed of various plant materials such as a palm mat.
<B> A mat or sheet formed of a cloth or paper material.
<C> A mat or sheet formed of a biodegradable material.
<D> A porous mat or sheet formed of resin yarn.
<E> Wire mesh and the like.

Also, the size of the earth and sand outflow prevention sheet 30 covers the bottom net 21, the front net (vertical net surface) 22, and the front flat net (horizontal net surface) 25 of the main body 20 from the inside. It is sufficient that the size is such that it can be attached, and it is preferable to attach the bag body 20 in advance during the manufacture.
As a means for fixing the earth and sand outflow prevention sheet 30, it is sufficient to bind several places to the ridge body 20 so as not to be easily peeled off.

[How to build]

  Next, a method for constructing a retaining wall will be described with reference to FIGS.

(1) Construction of Retaining Wall As shown in FIG. 3, a suction prevention sheet 41 is attached to the slope 40, and then a plurality of futon baskets 10 that are carried into the site and assembled in a box shape are placed adjacent to each other. It arranges in.
Next, a padding stone 11 is placed in each of the stacking futon baskets 10 partially attached with the sediment discharge prevention sheet 30, and a backing material 12 such as an aggregate is inserted behind each of the stacking futon baskets 10. Then, the first stage construction is completed.
Subsequently, as shown in FIG. 4, the second-stage stacking futon basket 10 is similarly constructed by shifting the position back and forth in the upper part of the first-stage stacking futon basket 10. Between the upper, lower, left and right adjacent futons 10 for stacking are mutually connected by a coil material or the like.
Then, as shown in FIG. 5, a plurality of terraced duvets 10 are stacked to a predetermined height to construct a stair-shaped retaining wall.

The bottom mesh 21, front straight mesh 22, and front flat mesh 25 at the front of each stacking futon basket 10 are covered in advance with an earth and sand outflow prevention sheet 30 having a substantially U-shaped cross section. As a result, the stepped portion exposed on the front surface is covered with the sediment discharge prevention sheet 30.

(2) Installation of earth and sand As shown in FIG. 3, earth and sand 50 which is a vegetation base material is installed in the step part of the retaining wall covered with the earth and sand outflow prevention sheet 30.
As the method of installing the earth and sand 50, for example, a method of spraying wet wet or dry earth and sand 50 toward the step portion of the retaining wall, or dropping the earth and sand 50 piled on the uppermost stage of the retaining wall onto the front surface of the retaining wall. The method of storing in the step part can be adopted.
The amount of earth and sand 50 is optimal if it can be installed until the entire front net 22 and front flat net 25 of the stepped portion are hidden, but if the retaining wall has a steep slope, a part of the front net 22 It may be hidden.

The earth and sand 50 may be general earth or sand that is inexpensive and easily available, and is mixed with silt or the like as necessary. Moreover, you may use the earth and sand 50 which mixed the seed beforehand.
Since the step portion of the retaining wall constituted by the front straight mesh 22 and the front flat mesh 25 is provided with the earth and sand outflow prevention sheet 30, the earth and sand 50 does not pass through the earth and sand outflow prevention sheet 30 and fall into the inside.

Then, seeds of various herbaceous and woody plants are sown or planted on the earth and sand 50 installed at the step portion of the retaining wall, and the entire surface of the retaining wall is greened as shown in FIG. .
Even when the earth and sand 50 are installed so that a part of the front net 22 is hidden, the exposed part of the front net 22 is hidden by the overgrown plants, so that the entire greening of the retaining wall is not hindered.

(3) About growth of plant The earth and sand 50 piled up in the level | step-difference part of a retaining wall does not permeate the inside of the futon basket 10 for sediments by the earth and sand outflow prevention sheet 30. FIG. Even if the retaining wall is a revetment retaining wall of the river and is in contact with the flowing water, the earth and sand 50 does not penetrate into the inside of the layered futon basket 10 by the earth and sand outflow prevention sheet 30.
Therefore, since the amount of earth and sand 50 necessary and sufficient for the plant to grow can be held, not only short-term greening of the plant but also long-term greening over a plurality of years is possible.

[Other Embodiment 1]
Other embodiments will be described below. In the description, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

  6 to 8 will be described with respect to a method for greening a retaining wall constructed by using other stacking futon baskets with different attachment points of the sediment discharge prevention sheet 30. FIG.

6 includes a front net 25, a front straight net 22 and a bottom net 21 of a main body 20 provided with a U-shaped cross-section earth and sand outflow prevention sheet 30 attached thereto. The attached length 21 is set to be substantially the same as that of the front flat net 25.
The construction method and the greening method of the retaining wall using the futon casket 20 for this example are the same as those of the embodiment described above.
In this example, since the attached length of the earth and sand outflow prevention sheet 30 covering the bottom net 21 of the main body 20 can be shortened, there is an advantage that the amount of material used can be reduced.

7 has a spill prevention sheet 30 that is longer than the widths of the nets 22 and 25 attached to the front flat net 25 and the front straight net 22 of the main body 20 in advance. .
In addition, in the construction, when constructing the lower-tiered futon basket 10, the surplus length portion of the sediment discharge preventing sheet 30 extending from the lower-tiered futon basket 10 is raised to the front side of the kite, In this state, the packing stone 11 is performed, and then the extra length portion of the sediment discharge prevention sheet 30 is spread on the upper surface of the packing stone 11.
In this example, without attaching the earth and sand outflow prevention sheet 30 to the upper surface of the bottom net 21 of the main body 20, it is attached to the lower surface of the bottom net 21 of the upper main body 20 when finally assembled as a retaining wall. It will be.

  8 has a configuration in which an earth-and-sand outflow prevention sheet 30 is attached in an inverted L shape inside the front flat mesh 25 and the front straight net 22 of the main body 20.

In addition, although not shown in the drawings, the futon basket 20 may be configured such that the earth and sand outflow prevention sheet 30 is integrally provided in advance only on the front flat net 25 of the basket main body 20.

[Other embodiment 2]

  In the form shown in FIG. 6 to FIG. 8, the sediment discharge prevention sheet 30 is attached to the front flat mesh 25 and the front direct mesh 22 constituting at least the step portion of the retaining wall, and the intrusion of the sediment 50 into the inside is suppressed. Although the case has been described, there is a case where the front flat net 25 uses the layered futon basket 10 having an open shape without the earth and sand outflow prevention sheet 30 attached thereto.

As the open form of the front flat net 25, the form of FIGS. 9 and 10 can be adopted.
FIGS. 9 and 10 show a stacked futon basket 10 provided with an earth and sand outflow prevention sheet 30 having an L-shaped cross section over two surfaces of the front net 22 and the bottom net 21 of the main body 20.
9 is provided with a sediment discharge prevention sheet 30 over the entire width of the bottom mesh 21, and FIG. 10 shows the length of the sediment discharge prevention sheet 30 attached to the bottom mesh 21 in front. The total width of the net 25 is set to be the same as or slightly longer than this.

In the retaining wall constructed using the futon wall 10 for the stacking of this example, of the front flat net 25 and the front straight net 22 constituting the stepped portion of the retaining wall, the front flat net 25 prevents the sediment from flowing out. The sheet 30 is not laid.
Therefore, a part of the earth and sand 50 accumulated on the stepped portion of the retaining wall penetrates into the front part of the stacking futon basket 10, but prevents sediment from flowing out on the two surfaces of the front straight mesh 22 and the bottom mesh 21. The sheet | seat 30 controls permeation | transmission of the earth and sand 50 which permeate | transmitted inside, and prevents the free outflow to the exterior of a cage | basket.

Therefore, in this example, in addition to the amount of sediment 50 that is the plant vegetation base material being accumulated in the step portion of the retaining wall, the amount permeated into the front portion of the futon bed 10 Will be added.
Therefore, vegetation is possible even with woody plants and flowers with large root system elongation, and there is an advantage that the selection range of greening plants is expanded.

Perspective view of a futon bag for stacking according to the present invention Partial enlarged view of a multi-natural retaining wall according to an embodiment of the present invention An explanatory diagram of the multi-natural retaining wall greening method, and an explanatory diagram of the construction process of the first-tiered futon wall It is explanatory drawing of multi-natural type retaining wall tree planting method, explanatory drawing of construction process of second-tiered futon wall Explanatory drawing of multi-natural retaining wall greening method, explaining the process of installing earth and sand on the stepped part of the retaining wall front It is explanatory drawing which concerns on other Embodiment 1, and is a fragmentary sectional view of the retaining wall constructed | assembled using the other futon for mats It is explanatory drawing which concerns on other Embodiment 1, and is a fragmentary sectional view of the retaining wall constructed | assembled using the other futon for mats It is explanatory drawing which concerns on other Embodiment 1, and is a fragmentary sectional view of the retaining wall constructed | assembled using the other futon for mats It is explanatory drawing which concerns on other Embodiment 2, and is a fragmentary sectional view of the retaining wall constructed | assembled using the other futon for fugitive layers It is explanatory drawing which concerns on other Embodiment 2, and is a fragmentary sectional view of the retaining wall constructed | assembled using the other futon for fugitive layers

Explanation of symbols

10 ... Duvet for caskets 11 ... Made stone 20 ... Body body 21 ... Bottom net 22 ... Front straight net 23 ... Rear straight net 24 ... side net 25 ... front flat net 30 ... earth and sand outflow prevention sheet 40 ... slope 50 ... earth and sand

Claims (4)

It is a futon wall for stacking that builds up a retaining wall by stacking in a staircase shape,
It consists of a box-shaped bowl body and an earth and sand spill prevention sheet attached to a part of the bowl body.
The main body has a rectangular bottom mesh, a front straight mesh connected to the opposite sides of the bottom mesh, a rear straight mesh, a side mesh provided on one side of the bottom mesh, and an upper side of the front straight mesh. It is composed of a pre-flat net provided,
It is characterized by having an earth and sand outflow prevention sheet attached in a substantially U shape over the three sides of the bottom net, front straight net and front flat net of the main body,
A futon for futon. It is a futon wall for stacking that builds up a retaining wall by stacking in a staircase shape,
It consists of a box-shaped bowl body and an earth and sand spill prevention sheet attached to a part of the bowl body.
The main body has a rectangular bottom mesh, a front straight mesh connected to the opposite sides of the bottom mesh, a rear straight mesh, a side mesh provided on one side of the bottom mesh, and an upper side of the front straight mesh. It is composed of a pre-flat net provided,
It is characterized by having an earth and sand outflow prevention sheet attached in a substantially L shape across the two surfaces of the bottom net of the main body and the front straight net,
A futon for futon. It is a futon wall for stacking that builds up a retaining wall by stacking in a staircase shape,
It consists of a box-shaped bowl body and an earth and sand spill prevention sheet attached to a part of the bowl body.
The main body has a rectangular bottom mesh, a front straight mesh connected to the opposite sides of the bottom mesh, a rear straight mesh, a side mesh provided on one side of the bottom mesh, and an upper side of the front straight mesh. It is composed of a pre-flat net provided,
It is characterized by having an earth and sand outflow prevention sheet attached to one side of the front flat net of the main body.
A futon for futon.   4. The earth and sand spillage prevention sheet according to any one of claims 1 to 3, which is any one of a vegetable material, cloth or paper, a biodegradable material, and a resin yarn, and is formed in a mat shape or a sheet shape. A futon bag for stacking, characterized by being made.

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