JPH11209989A - Retaining wall made of mattress-shaped gabion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the sloping of mattress-shaped gabions to enhance stacking strength when the mattress-shaped gabions are stacked in the form of a staircase for the construction of a retaining wall. SOLUTION: Mattress-shaped gabions 1, each comprising a rectangular bottom surface net and an upper surface net with which, of front and rear side face nets, at least the front side face net, at least either one of right and left side face nets, and at least the part of the upper surface of the gabion not overlapping with the upper mattress-shaped gabion 1 are covered, are vertically stacked in the form of a staircase while each of the gabions 1 is filled with a filler 2. At a position inside the mattress-shaped gabion 1 which corresponds to the end portion 1a of the upper mattress-shaped gabion 1, a support member 6 supporting the end portion 1a is provided. The support member 6 in the mattress-shaped gabion 1 is formed by a porous panel, and is placed parallel to the front side face net so that the inside of the mattress-shaped gabion 1 is partitioned into a rear chamber part 1c overlapping with the upper mattress- shaped gabion and a front chamber part 1b not overlapping therewith. In the mattress-shaped gabion 1, stones are packed in the front chamber part 1b, and earth and sand are packed in the rear chamber part 1c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall constructed by stacking a plurality of futon baskets in a stepped manner.

[0002]

2. Description of the Related Art Conventionally, there has been known a technique of constructing a retaining wall by stacking a plurality of futon baskets in a stair-like manner for protecting slopes and greening slopes in mountains, valleys, roads, residential areas, river banks, and the like. It is. An example of such a retaining wall construction technique is disclosed in Japanese Patent No. 26579.
No. 00 discloses this. As shown in FIG. 5, there are a bottom net 21, front and rear and left and right side nets 22a and 22b, and an auxiliary lid 23 provided only at the front end of the upper surface.
As shown in FIG. 6, the futon basket 20 is stacked in a stair-like manner with the position shifted back and forth by the width of the auxiliary lid 23, and a lid net in a portion overlapping with the upper futon basket 20 is formed. By omitting, waste due to duplication of materials is eliminated.

However, in the above-mentioned conventional retaining wall, as shown in FIG. 7, when the filling 24 such as stuffing stones gradually settles down and tightens after a while after the construction, or when the filling 24 becomes better due to the movement, such a portion is required. As a result, the surface of the filling 24 may sink, which causes a problem that the upper futon basket 20 is easily inclined. In particular, when the upper and lower futon baskets 20 and 20 are staggered in a stepwise manner with their positions shifted back and forth, the leading end portion 20a of the upper futon basket 20 is not sufficiently supported by the lower futon basket 20. It becomes very unstable, and the tip portion 20a easily falls into the lower futon basket 20 and is inclined to the front turning state.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to prevent the inclination of the futon basket to increase the strength of the stepped stack when the retaining wall is constructed by stacking the futon basket in steps. .

[0005]

According to the present invention, in order to solve the above-mentioned problems, according to the present invention, at the position corresponding to the tip of the upper futon basket,
There is provided a step-shaped retaining wall made of a futon, provided with a support member for supporting the distal end portion.

[0006] As described above, the supporting member is provided inside each of the futon baskets, and the supporting member supports the front end of the upper futon basket. Will not fall into the lower futon basket and tilt.

According to one specific embodiment of the present invention, the support member is formed of a porous panel, and is disposed in parallel with the side net on the front surface, so that the interior of the futon basket is formed. , And is divided into a rear chamber portion at a position overlapping the upper futon basket and a front room portion at a position not overlapping.

[0008] Thus, the front chamber can be filled with stones, the rear chamber can be filled with earth and sand, and so on. By using only a small amount of expensive stone and using inexpensive earth and sand together, it becomes possible to construct the retaining wall efficiently at low cost.

According to another specific embodiment of the present invention,
The support member is formed by a rectangular frame made of wire.

[0010] In the retaining wall of the present invention, the upper surface net of the futon basket has a size that covers the entire upper surface of the futon basket or a size that covers only a portion that does not overlap the upper futon basket.
Alternatively, it is formed to have a size that covers a part that does not overlap with the upper futon basket and a part of the part that overlaps.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of a futon basket retaining wall according to the present invention. Is constructed by sequentially stacking a plurality of square-shaped futon baskets 1 in a stepwise manner with their positions slightly shifted back and forth while filling the inside with fillers 2 such as rubble and earth and sand. I have.
In this case, a required number of the futon baskets 1 are arranged in the left-right direction and, if necessary, also in the front-rear direction, and adjacent ones including the upper and lower ones are interconnected. Further, the lowermost futon basket 1 may be installed in a state in which a part or the whole is buried in the soil.

As shown in FIG. 2, the futon basket 1 has a rectangular bottom net 3 and front and rear side nets 4a, 4a and left and right side nets 4b, 4b connected to each side of the bottom net 3. 4b
And an upper surface net 5 attached to the upper surface. Each of these surface nets can be formed by a net material such as a rhombic wire net, a welded wire net, a turtle net, and a synthetic resin net. In the illustrated example, a rhombic wire net is used.

A support member 6 for supporting the distal end portion 1a is provided at a position corresponding to the distal end portion 1a of the upper futon basket 1 in each of the above-mentioned futon baskets 1. This support member 6
Is any form, such as a perforated or non-perforated panel, frame, or column, as long as it can support the tip 1a of the upper futon basket 1. However, in the example shown in the figure, it is constituted by a porous panel in which an edge frame 8 is attached around a diamond-shaped wire mesh 7 as shown in detail in FIG. FIG. 4B shows an example in which the supporting member 6 has a frame shape, in which a reinforcing wire 10 is diagonally stretched inside a rectangular outer frame 9.

The support member 6 is mounted in the futon basket 1 in parallel with the front side net 4a, so that the interior of the futon basket 1 is located at a position overlapping the upper futon basket 1. 1c and an anterior chamber portion 1b which does not overlap. The lower edge of the front end 1a of the upper futon basket 1 is connected to the upper edge of the support member 6.

The uppermost futon basket does not need to be provided with a support member 6 because no other futon basket is placed thereon. The member 6 may be provided.

In the retaining wall having the above structure, the front end portion 1a of the upper futon basket 1 is supported by the support member 6 provided inside each futon basket 1, so that the filling 2 is settled down and closed or moved. Or even if the surface of the filling 2 slightly sinks in that part,
The distal end portion 1a of the upper futon basket 1 does not fall greatly into the lower futon basket 1 and does not incline, so that the stapling strength of each futon basket 1 is large.

Further, the interior of the futon basket 1 is
Is divided into a front chamber part 1b and a rear chamber part 1c, so that the front chamber part 1b is filled with stone and the rear chamber part 1c is filled with earth and sand. Thus, both chambers 1b and 1c can be filled with different filling materials. In particular, by filling the anterior chamber part with stone and filling the rear chamber part with earth and sand, it is possible to use only a small amount of hard-to-obtain and expensive stone, and use inexpensive earth and sand together to reduce the cost of retaining walls. And can be constructed efficiently.

When the futon basket 1 is filled with the filler 2 having a small particle size such as earth and sand as described above, the supporting member 6 and each surface mesh of the futon basket 1 are prevented in order to prevent the outflow. It is desirable to make the mesh finer, or to arrange a net-like material with a finer mesh along these support members 6 and each surface net.

In the above embodiment, the upper surface net 5 of each futon basket 1
Has a size that covers the entire upper surface of the basket, but the size of the upper surface mesh is such that the upper surface portion that does not overlap with the upper futon basket 1 like the upper surface net 5a of the futon basket 1 shown in FIG. It may be the size to cover. In this case, the upper surface net 5a covers just the upper surface of the front chamber portion 1b. Alternatively, as shown by a chain line in FIG. 3, an upper surface net 5b large enough to cover a part of the front chamber part 1b and the rear chamber part 1c can be used. In short, the upper surface net only needs to have a size capable of covering at least a portion of the upper surface of the futon basket that does not overlap with the upper futon basket 1.

Further, the futon basket 1 of the above embodiment has four front and rear and left and right side nets 4a and 4b. To prevent overlapping screens and save material,
The rear side net 4a or one of the left and right side nets 4b may be omitted, or both the rear side net 4a and one of the left and right side nets 4b may be omitted.

The retaining wall of the present invention can be installed in combination with a retaining wall having a different configuration according to the topography and the like. For example, one or more cylindrical baskets called "Dharma baskets" are installed on the base part to form a wall, and the retaining wall of the present invention is formed on this wall.

[0022]

As described above, according to the retaining wall of the present invention, the support member is provided inside the futon basket, and the top end of the upper futon basket is supported by this support member. Even when the futon basket sinks slightly, the tip of the futon basket does not fall into the lower futon basket and does not incline, so that the step strength of the futon basket increases.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a futon cage retaining wall according to the present invention.

FIG. 2 is a perspective view showing an example of a futon basket constituting the retaining wall of FIG. 1 with a part of a top net cut away.

FIG. 3 is a perspective view showing another example of the futon basket forming the retaining wall of FIG. 1;

FIGS. 4A and 4B are front views showing examples of different configurations of a support member.

FIG. 5 is a perspective view of a conventional futon basket for retaining wall construction.

FIG. 6 is a sectional view of a conventional retaining wall.

FIG. 7 is a sectional view for explaining a problem of a conventional retaining wall.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Futon basket 1a Tip part 1b Front chamber part 1c Rear chamber part 2 Filling material 3 Bottom net 4a Front and rear side nets 4b Left and right side nets 5, 5a, 5b Top net 6 Support member

Claims (7)

[Claims] A portion which does not overlap with a rectangular bottom net, at least one of the front and rear side nets, at least one of the left and right side nets, and at least the upper futon basket on the basket upper surface. Futon basket consisting of a top net covering
It is configured by stacking up and down in a stepwise manner in a state of being filled with a filling material, and a support member for supporting the distal end portion is provided at a position corresponding to the distal end portion of the upper futon basket inside the futon basket. A futon basket retaining wall, which is provided. 2. The retaining wall according to claim 1, wherein the support member inside the futon basket is formed by a porous panel, and the support member is arranged in parallel with the front side net. The interior of the futon basket is divided into a rear chamber part that overlaps the upper futon basket and a front chamber part that does not overlap. 3. The retaining wall according to claim 2, wherein the front chamber portion of the futon basket is filled with stone, and the rear chamber portion is filled with earth and sand. 4. The retaining wall according to claim 1, wherein the support member inside the futon basket is formed by a rectangular frame made of wire. 5. The retaining wall according to claim 1, wherein the upper surface net of the futon basket is large enough to cover the entire upper surface of the futon basket. 6. The retaining wall according to claim 1, wherein the upper surface net of the futon basket is sized to cover only a portion that does not overlap the upper futon basket on the upper surface of the futon basket. What is characterized by. 7. The retaining wall according to claim 1, wherein the upper surface net of the futon basket is partially overlapped with the entirety of the upper surface of the futon basket that does not overlap the upper futon basket. And a size that covers the