JP2831993B1 - Structural wall made of stone basket and its construction method - Google Patents

Abstract

An object of the present invention is to provide a stonewall basket structure wall which can be installed without cutting or backfilling a slope in a stepped manner and which is easy to construct. SOLUTION: After arranging a common back net 13 on each step of stone baskets 12 along the slope 11, the back 12e for sequentially opening the stone baskets 12 one by one from the bottom one is the rear face. The structure wall 10A is obtained by arranging it so as to be in contact with the net 13 and connecting it to the rear net 13 and repeating the operation of filling the inside with earth and sand or gravels.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stone-walled structural wall provided for protecting slopes and greening slopes in mountains, valleys, roads, residential areas, river banks, and the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, this type of stone-filled basket-type structural wall installed for protection of slopes and greening in hills, valleys, roads, residential areas, river banks, and the like, as shown in FIG. A stone stuffing basket 1 containing a filling material such as earth and sand or rubble is inserted into a slope 2
Is known in which a plurality of steps are stacked in a stair-like shape.
Such a structural wall is composed of a wire mesh and the stone basket 1 that composes it is filled with earth and sand, gravels, and the like, so that it has excellent water permeability and removes moisture in the back soil. Not only can water be drained quickly, but also the friction between the soil and the back soil is large, and the soil retaining effect that suppresses landslides is superior.

[0003] However, since the above-mentioned conventional structural wall is formed by stacking the cuboid-shaped stone baskets 1 in a state in which the stone baskets 1 are retracted rearward by a fixed distance for each step, the construction is performed as shown in FIG. As shown in FIG. 7, the slope 2 is cut in advance in a stepwise manner in accordance with the height of the stone basket 1, and the rear end portion of the stone basket 1 is sequentially placed on each step 2a for stacking. Alternatively, as shown in FIG. 8, the slope 2 is cut into an inclined surface so that the earth and sand 3 behind the stone basket 1 is backfilled every time the stone basket 1 for one stage is installed. Construction was very troublesome. Moreover, since the upper and lower stone baskets 1, 1 are stacked in an unstable state due to a shift in the front-rear direction, the connection must be strengthened accordingly, and the connection work between the stone baskets is also required. It was troublesome.

Further, when the structural wall is installed on a bank of a river or the like, a sheet-shaped suction prevention material is installed between the slope and the stone basket in order to prevent the outflow of earth and sand from the slope. But
In this case, since the suction-preventing member must be installed while being bent in a stepwise manner, not only is the installation operation troublesome, but also the use area is increased and the cost is increased.

[0005]

SUMMARY OF THE INVENTION The technical problem of the present invention is to provide a simple-construction wall made of stone baskets that can be installed without cutting or backfilling the slope in steps. It is in.

Another technical object of the present invention is to provide a solid stone basket structure wall having a large connection strength between stacked stone baskets.

Still another technical object of the present invention is to provide a stone-walled structural wall in which a suction-preventing material for preventing outflow of earth and sand from a slope can be easily installed.

[0008]

Means for Solving the Problems To solve the above problems, a structure wall made of a stone stuffing basket according to the present invention is a common wall arranged so as to straddle a plurality of upper and lower stone stuffing baskets along a slope. With a back net;
It has a back surface that is inclined and opened in accordance with the inclination angle of the slope, and a plurality of stages are stacked with the back surface along the back surface net, and each back surface is closed by the common back surface net. A plurality of stone baskets;

Further, according to the method of constructing a structure wall made of stone baskets of the present invention, a step of arranging a common back net on a plurality of upper and lower stone baskets along the slope; A plurality of stone baskets having a back surface that is inclined and opened in accordance with the above, while stacking a plurality of stages with the back surface along the back net, and closing the back surface of each stone basket with the back net; Filling each stone basket with a filling material such as earth and sand or gravels.

According to the present invention, the slope is cut in a step-like manner, and the earth and sand behind the stone-filled basket is not backfilled every time a single-stage stone-filled basket is installed. After arranging a common back net along the surface, stacking a plurality of stone baskets along the slope, and connecting the back of each stone basket to the back net, the structure made of stone baskets Walls can be installed easily and quickly.

In addition, since the upper stone basket is stacked almost completely on the upper surface of the lower stone basket, the stacked stone baskets are integrally connected by one back net. ,
The stacking state is very stable, the connection strength is high, and the work of connecting the two is easy. Further, even when a sheet-shaped suction-preventing material for preventing the outflow of earth and sand is provided between the slope and the back net, it is not necessary to fold the suction-preventing material in a stepwise manner, so that the installation is not required. A simple and small area can be used.

In the present invention, the lower end of the back net may be extended to the bottom of the lowermost stone basket to serve also as the bottom net of the lowermost stone basket. The upper end may be extended to the shoulder of the slope.

In the present invention, at least one of the mutually contacting surfaces of the adjacent stone baskets can be made into a single surface by a common surface network.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a first embodiment of a stone-walled structural wall according to the present invention. The structural wall 10 </ b> A of the first embodiment includes a plurality of stone stuffing baskets 12 stacked vertically along a slope 11, and a common back net 13 that closes a back surface 12 e of the stone stuffing basket 12 that is open. It is composed of

As shown in FIG. 2, the stone basket 12 has a bottom surface 12a and a top surface 12b, left and right side surfaces 12c, and a front surface 1c.
2d is covered by a mesh made of a suitable mesh material such as a diamond wire mesh, a turtle mesh wire or a welded wire mesh, and has a rectangular shape in which only the back surface 12e is open. The surface 11 is inclined at the same angle as the inclination angle θ.

The back net 13 is provided with the stone basket 12
And has a vertical length extending over all of the stone baskets 12 in the upper and lower tiers and a horizontal length corresponding to the width of at least one stone basket 12, and Net 1
3 is arranged along the slope 11, and then the stone stuffing baskets 12 are successively stacked from the bottom one while being connected to the back net 13 and filled with the filling material. The structure wall 10A made of a stone basket is constituted.

The method of constructing the structural wall will be described in more detail. First, after the back net 13 is stretched along the slope 11 as described above, the back 12e for opening the lowermost stone basket 12 is provided. The rear end is arranged so as to be in contact with the back net 13, and the rear end thereof is connected to the back net 13 with an appropriate connection metal fitting, and
2e is closed. Then, all or a part of the mesh of the upper surface 12b or the front surface 12d of the stone basket 12 is opened to fill the inside with a filler such as earth and sand or gravels. When the stone baskets 12 are arranged side by side in the horizontal direction, the stone baskets adjacent horizontally are connected to each other as necessary.

Next, the second-stage stone basket 12 is installed in the same manner, and is connected to the lower stone basket 12. At this time, the upper-stage stone basket 12 is connected to the lower-stage stone basket 12 while being almost completely placed on the upper surface thereof. When the stone baskets 12 are also installed in the horizontal direction, adjacent stone baskets are connected to each other as necessary, as in the case of the first stage.

Hereinafter, the above-mentioned structural wall 10A is obtained by stacking the third and subsequent stone stuffing baskets 12 in the same manner.

By arranging the structural wall 10A in this manner, the slope 11 is cut in a stepped manner as in the prior art, and the earth and sand behind the stone stuffing basket is filled every time the stone stuffing basket is installed one step. There is no need to return, and the installation work can be performed easily and quickly. Moreover, while the upper stone basin is almost completely stacked on the upper surface of the lower stone basin,
Since the stacked stone baskets 12 are integrally connected by one back net 13, the stacked state is very stable, the connection strength is large, and the work of connecting the upper and lower stone baskets to each other is easy. Can be done.

The back net 13 may be fixed directly to the slope 11 by fixing means such as anchor bolts.
As shown in (1), it can be stretched on a slope by being supported by a wire rope. In this figure, a back net 13 having a lateral length spanning three stone baskets 12,
The vertical ropes 15 and the horizontal ropes 16 fixed to the slope 11 are connected at appropriate positions by connecting metal fittings 17 such as helical wires, so that they are sequentially stretched along the slope 11. When the wire rope is used as described above, the workability is very good when a back net having a large area is stretched or when a plurality of back nets are stretched simultaneously or sequentially.

The back net 13 may be provided only at the portion along the slope 11, but the upper end 13 a may be extended to the shoulder of the slope 11 as shown in FIG. .

FIG. 4 shows a second embodiment of the structure wall made of stone baskets. The structure wall 10B of the second embodiment differs from the first embodiment in that the bottom surface 12a and the back surface 12e are different. The point is that an open stone basket 12 is used. That is, as shown in FIG. 5, the stone stuffing basket 12 has an upper surface 12b and left and right side surfaces 1b.
2c and the front surface 12d are covered by a screen mesh,
2e and the bottom surface 12a are open, and these stone baskets 12 are vertically stacked and connected to each other so that the lower surface 12a of the upper stone basket 12 is the upper surface 12 of the lower stone basket 12.
b. In other words, the mutually contacting surfaces of the adjacent stone baskets 12 are made into one surface by a common surface network.

On the other hand, the lower end portion 13b of the back net 13 is extended to the bottom surface 12a of the lowermost stone basket 12, so that it also serves as the bottom net of the lowermost stone basket 12. . However, the lowermost stone stuffing basket 12 may be one in which a mesh is stretched on the bottom surface 12a as used in the first embodiment. In this case,
It is not necessary to extend the lower end 13b of the back net 13 to the bottom surface 12a of the lowermost stone basket 12.

Since the configuration, construction method, modified example, and the like other than the above are substantially the same as those in the first embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

As described above, the mutually contacting surfaces of the adjacent stone stuffing baskets 12 and 12 are made into a single surface by the common surface net, so that the waste of the surface nets overlapping can be eliminated, and the amount of the net material used can be reduced. The structure wall 10B can be installed economically. When the stone baskets 12 are arranged side by side in the horizontal direction, the surfaces of the stone baskets 12 adjacent to each other that are adjacent to each other can be made into a single plane by a common screen net.

FIG. 6 shows a third embodiment of a structure wall made of stone baskets. The structure wall 10C of the third embodiment is suitable for being installed at a place in contact with running water such as a river bank. Further, between the slope 11 and the back net 13, a porous sheet-shaped suction prevention member 14 made of a synthetic resin net or a wire mesh for preventing earth and sand from flowing out from the slope 11 is provided. . The upper end portion 14a of the suction prevention material 14 is
It is preferable that the lower end portion 14b is extended to the lower surface 12a of the lowermost stone basket 12, and the lower end portion 14b is extended to the lower shoulder portion 12b.

The structure wall 10C of the third embodiment is
Substantially the first except that the suction prevention member 14 is provided.
Since the configuration is the same as that of the embodiment, the same components are denoted by the same reference numerals and description thereof will be omitted.

As described above, even when the suction-preventing member 14 is disposed between the slope 11 and the back net 13, it is not necessary to bend the suction-preventing member 14 in a stepwise manner as in the conventional case. , Can be used with a simple installation and a small area.

Of course, the suction prevention member 14 can also be applied to the structural wall 10B having the structure described in the second embodiment.

[0031]

As described above, according to the present invention, the slope is cut in steps, and the earth and sand behind the stone-filled basket is not backfilled every time a single-stage stone-filled basket is installed. After arranging a common back net along the slope, a plurality of stone baskets are stacked along the slope, and the back of each stone basket is connected to the back net, thereby forming a stone basket. The structural wall can be installed simply and quickly. In addition, the upper stone basin is stacked almost completely on the upper surface of the lower stone basin, and the stacked stone basins are integrally connected by one back net. The state is very stable, the connection strength is large, and the work of connecting the upper and lower stone baskets to each other is easy. Further, even when a sheet-shaped suction-preventing material for preventing the outflow of earth and sand is provided between the slope and the back net, it is not necessary to fold the suction-preventing material in a stepwise manner, so that the installation is not required. A simple and small area can be used.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a structural wall according to the present invention.

FIG. 2 is a perspective view of a stone basket used for the structural wall of FIG. 1;

FIG. 3 is a front view showing a manner in which a back net is stretched.

FIG. 4 is a sectional view showing a second embodiment of the structural wall according to the present invention.

FIG. 5 is a perspective view of a stone basket used for the structural wall of FIG. 3;

FIG. 6 is a sectional view showing a third embodiment of the structural wall according to the present invention.

FIG. 7 is a sectional view showing an example of a conventional structural wall.

FIG. 8 is a sectional view showing another example of a conventional structural wall during construction.

[Explanation of symbols]

 Reference Signs List 10A, 10B, 10C Structural wall 11 Slope 12 Stone basket 12a Bottom 12e Back 13 Back net 13a Upper end 13b Lower end 14 Suction prevention material

Claims (7)

(57) [Claims] 1. A common back net arranged so as to straddle a plurality of upper and lower stone baskets along a slope; a back face which is inclined and opened according to the slope angle of the slope, A plurality of stone baskets, each of which is stacked in a plurality of stages with the back surface along the back net, and each back surface of which is closed by the common back net; wall. 2. The structural wall according to claim 1, wherein a lower end portion of the back net extends to a bottom surface of the lowermost stone basket, thereby forming a bottom net of the lowermost stone basket. Features that are also used. 3. The structural wall according to claim 1, wherein
The upper end of the back net extends to a shoulder portion of a slope. 4. The structural wall according to claim 1, wherein at least one of the mutually contacting surfaces of the adjacent stone baskets is formed into a single surface by a common surface network. Features. 5. The structural wall according to claim 1, further comprising a sheet-shaped suction-preventing material disposed between the slope and the back net for preventing earth and sand from flowing out from the slope. Characterized by being performed. 6. A step of arranging a common back net on a plurality of upper and lower stages of stone stuffing baskets along a slope; a plurality of stone stuffing baskets having a back surface which is inclined and opened according to the inclination angle of the slope. And stacking the back surface of each stone basket in the back net with the back net; and filling each stone basket with a filler such as earth and sand or gravels. A method of constructing a stone-walled structural wall, characterized by having: 7. The construction method according to claim 6, further comprising a step of disposing a sheet-shaped suction prevention material for preventing outflow of earth and sand from the slope, between the slope and the back net. Features.