JPH11217812A - Cage sheet and retaining wall constructed thereby - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cage sheet having large drag against soil, excellent in the earth retaining effect and a retaining wall constructed by the cage sheet. SOLUTION: A cage section 3 is provided to the longitudinal front end section of a rectangular base sheet 2 of a porous material at the same time, a vertical wall section 4 erected upward is provided to the rear end of the base sheet 2, and the vertical wall section 4 and cage section 3 are connected to each other with a frame line 10 to form a cage sheet 1. The inside of the cage section 3 of the cage sheet 1 is filled with stone 12 and, at the same time, the base sheet 2 is filled with earth and sand 12 to construct a retaining wall by using a small amount of stone 12 together with the earth and sand 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cage sheet for constructing a retaining wall and a retaining wall constructed thereby.

[0002]

2. Description of the Related Art Conventionally, a plurality of baskets filled with stones have been arranged in a plane to protect slopes such as mountains, valleys, roads, residential areas, riverbanks, etc. and for greening. The technique of constructing a retaining wall by three-dimensionally stacking the walls is generally practiced. Also, recently, there is a shortage of packing stones to be filled, and therefore, in many cases, soil is used as a packing instead of stone.

[0003] An example of such a jigging method is disclosed in Japanese Unexamined Patent Publication No.
-57723. This uses an element member 20 provided with a box portion 22 at the tip of a base sheet 21 made of a wire mesh as shown in FIG. 5, and the box portion 22 and the base sheet 21 are made of either stone or earth and sand. A technique for filling or covering to construct a retaining wall as shown in FIG. 6 is disclosed.

[0004] However, the element member 20 is provided in the box portion 2.
Since the base sheet 21 is only flatly extended behind the base 2, even if the base sheet 21 is filled with stone or earth and sand, the drag is small, and there is a problem in the retaining effect.

[0005] Further, since the retaining wall is constructed using only one of the stone and the earth and sand, for example, when using a stone, it is very difficult to obtain an expensive stone recently. There is also a disadvantage that it requires a large amount and is costly.

[0006]

A first technical problem of the present invention is that the resistance to soil is large and the soil retention effect is overcome.
It is to provide a means for building a retaining wall. A second technical problem of the present invention is to efficiently construct a retaining wall that excels in retaining effect by using the above construction means and effectively using a small amount of stone and soil.

[0007]

According to the present invention, a cage made of a porous material is provided at the front end of a base sheet made of a porous material. A basket sheet is provided, wherein a panel-like standing wall portion rising upward is provided at a rear end portion of the sheet, and the standing wall portion is connected to the basket portion by a frame line for preventing falling.

In the cage sheet having the above structure, a retaining wall is constructed by filling the cage portion and the base sheet portion with a filler such as stone or earth and sand. At this time, the basket sheets are arranged side by side in a plane, stacked three-dimensionally, or installed in a form using both of them, and connected to each other as necessary.

In the cage sheet installed, the base sheet is pressed against the soil by the filler and firmly held, and at the same time, the standing wall at the rear end engages with the filler and the soil. Large and can overcome the soil retention effect. Moreover, since the upright wall portion is connected to the basket portion by a frame line, the standing wall is prevented from falling down, and not only is the locking force with respect to the soil extremely large, but also the frame line is formed on the base sheet of the adjacent basket sheet. Does not become an obstacle when the soils are integrated with each other, the integration of the soil is promoted, and the stability of the retaining wall is increased.

According to a specific mode of the present invention, the basket portion is surrounded by a bottom panel made of a porous material, front and rear panels, at least one of left and right side panels, and a top panel. It has a rectangular cross section.

According to a more specific configuration of the present invention,
The base sheet has a rectangular shape, and the basket portion and the standing wall portion have the same width dimension as the base sheet, and the basket portion and the standing wall portion are laid over each other at both ends in the width direction. The frames are connected to each other. In the present invention, the concept of a rectangle includes a square.

According to a preferred mode of the present invention, the base sheet, the bottom panel and the front panel of the cage, the top panel, and the upright wall are integrally formed by bending a single porous sheet. And a separately formed rear panel and side panel attached thereto.

In the basket sheet of the present invention, a runoff preventing material for preventing runoff of earth and sand can be provided along the rear panel of the basket section.

According to the present invention, in order to solve the second problem, according to the present invention, the above-described basket sheet is used, and the basket portion is filled with stones and the base sheet is filled with earth and sand. A wall is built.

Thus, according to the present invention, a retaining wall which excels in retaining effect can be obtained by effectively utilizing a small amount of stone enough to fill the cage portion of the cage sheet and soil filled on the base sheet. It can be constructed efficiently.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a first embodiment of a retaining wall constructed by a cage sheet of the present invention. The retaining wall is constructed by sequentially stacking a plurality of basket sheets 1 in a stepwise manner with their positions slightly shifted back and forth while being filled with stones 12 and earth and sand 13 therein. In this case, the necessary number of the cage sheets 1 are also arranged in the left-right direction, and those adjacent vertically and horizontally are interconnected.

As shown in FIG. 2, the cage sheet 1 has a bottom surface, a front surface and a rear surface, an upper surface, and left and right side surfaces at a longitudinal front end of a rectangular base sheet 2 made of a porous material. Are made of porous material panels 5, 6,
A cage 3 having a rectangular cross-sectional shape covered with 7, 8, 9 is provided, and a panel-shaped standing wall 4 made of a porous material that rises vertically upward is provided at the rear end of the base sheet 2. The standing wall portion 4 is provided with frame lines 10 and 1 for preventing lodging.
0 has a configuration connected to the basket portion 3. Examples of the porous material include a rhombus wire mesh, a welded wire mesh, a turtle wire mesh, a synthetic resin net, and the like. In the illustrated embodiment, a rhombus wire mesh is used.

As can be seen from FIG. 3, the base sheet 2, the bottom panel 5, the front panel 6 and the top panel 8 of the cage section 3, and the upright wall section 4 are formed by bending one rhombus wire mesh. And a rear panel 7 and side panels 9, 9 separately formed by a diamond-shaped wire mesh. Therefore, the cage 3 and the standing wall 4
Has the same width dimension as the base sheet 2, and the cage portion 3 and the upright wall portion 4 are arranged at both ends in the width direction.
They are connected to each other by the above-mentioned frame lines 10, 10 spanned between their upper ends.

When a retaining wall is constructed with the cage sheet 1 having the above-described structure, as shown in FIG. 1, a stone 12 is packed in the basket 3 at the front end, and earth and sand 13 are filled on the base sheet 2. By doing so, the required number of stages are stacked. In this case, a stair-shaped retaining wall is formed by stacking the upper and lower basket sheets 1 and 1 with their positions shifted back and forth as shown, and by vertically stacking without shifting the position. A wall is configured. Further, the basket sheet 1 at the lowermost stage may be installed in a state where a part or the whole is buried in the soil.

When the stepped retaining wall is formed, the distance by which the upper and lower cage sheets 1 and 1 are shifted back and forth should be within the range of the longitudinal length L of the cage portion 3 as shown in the figure. This range naturally includes the case where the tip of the upper cage 3 is located on the rear panel 7 of the rear end of the lower cage 3.

Thus, by constructing the retaining wall by using the stones 12 and the earth and sand 13 together, a small amount of the stones 12 enough to fill the cage portion 3 of each cage sheet 1 and the stones 12 are filled on the base sheet 2. By effectively utilizing the soil, a retaining wall that excels in the retaining effect can be efficiently constructed at low cost.

In particular, since the base sheet 2 is sandwiched and fixed firmly in the soil from both sides and the upright wall portion 4 at the rear end of the base sheet 2 is engaged with the soil, the resistance against the soil is extremely large, and the soil retention effect is obtained. Can win. Moreover, since the upright wall portion 4 is connected to the cage portion 3 by the frame line 10, it is prevented from falling down, so that not only the locking force to the soil is very large, but also the frame line 10 is horizontally adjacent. Basket sheet 1,1
Since it does not become an obstacle when the soils on the base sheets 2 and 2 are integrated with each other, the integration of the soil is promoted and the stability of the retaining wall is increased.

In the cage sheet 1, the cage wall 3 and the base sheet 2 may be filled with either the stone 12 or the earth and sand 13, respectively, to form a retaining wall. Also in this case, the base sheet 2 and the rear wall 4
The fact that a larger drag can be obtained and the retaining effect can be surpassed is the same as the case where the retaining wall is constructed by using the stone 12 and the earth and sand 13 together as described above.

In the above embodiment, the side panels 9 are attached to the left and right side surfaces of the basket portion 3, respectively.
One of the side panels 9 can be omitted in order to prevent overlapping and save material.

The bottom panel 5, the front panel 6 and the top panel 8 of the cage 3 and the upright wall 4 are formed integrally with the base sheet 2. It may be formed separately from the sheet 2.

FIG. 4 shows a second embodiment of the cage sheet of the present invention and the retaining wall constituted thereby. The cage sheet 1 of the first embodiment has a cage section 3 having a rectangular cross section. While the front panel 6 is vertical, the basket portion 3a of the basket sheet 1a of the second embodiment has a trapezoidal cross section, and the front panel 6a is inclined rearward. doing.

Therefore, in the first embodiment, when constructing the inclined retaining wall, the basket sheet 3 must be stepped up in a step-like manner. In the second embodiment, the front panel 6a is continuously provided. By stacking the basket sheets 1a in such a manner, the retaining wall whose front surface is smoothly inclined can be easily formed. The other configuration is substantially the same as that of the first embodiment.

[0028]

As described above, according to the present invention, it is possible to obtain a cage sheet for constructing a retaining wall, which has a large resistance to the soil and therefore has an excellent soil retaining effect. In addition, by using the above cage sheet and using a small amount of stone and earth and sand together, it is possible to efficiently construct a retaining wall having an excellent retaining effect at low cost.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a retaining wall made of a cage sheet according to the present invention.

FIG. 2 is a perspective view showing a first embodiment of a basket sheet constituting the retaining wall of FIG. 1;

FIG. 3 is a side sectional view of the basket sheet of FIG. 2;

FIG. 4 is a sectional view showing a basket sheet and a retaining wall according to a second embodiment of the present invention.

FIG. 5 is a perspective view of a conventional retaining wall construction element member.

FIG. 6 is a cross-sectional view of a conventional retaining wall constructed with the element members of FIG.

[Explanation of symbols]

1, 1a basket sheet 2 base sheet 3, 3a cage section 4 standing wall section 5 bottom panel 6, 6a front panel 7 rear panel 8 top panel 9 side panel 10 frame line 12 stone 13 earth and sand

Claims (8)

[Claims] 1. A base sheet made of a porous material is provided at a front end thereof with a cage made of a porous material, and a rear end portion of the base sheet is provided with an upright panel-shaped upright wall. A basket sheet, characterized in that the basket part is connected to the basket part by a frame line for preventing fall. 2. The basket sheet according to claim 1, wherein said cage portion is surrounded by a bottom panel, a front and rear panel, at least one of left and right side panels, and a top panel. Characterized by having a shape. 3. The basket sheet according to claim 2, wherein a cross-sectional shape of the basket portion is rectangular. 4. The basket sheet according to claim 2, wherein a cross-sectional shape of the basket portion is trapezoidal. 5. The basket sheet according to claim 2, wherein the base sheet has a rectangular shape.
The basket portion and the upright wall portion have the same width dimension as the base sheet, and the basket portion and the upright wall portion are connected to each other by the above-mentioned frame line that is bridged between them at both ends in the width direction. Features. 6. The basket sheet according to claim 5, wherein the base sheet, the bottom panel, the front panel, and the top panel of the cage section, and the upright wall section are formed by bending a single porous sheet. A rear panel and a side panel which are formed integrally and separately formed are attached thereto. 7. The basket sheet according to claim 2, wherein a run-off preventing material for preventing run-off of earth and sand is provided along at least a rear panel of the basket portion. Features. 8. A basket sheet according to any one of claims 1 to 7, wherein the basket portion of the basket sheet is filled with stones and the base sheet is filled with earth and sand. Features retaining wall.