JPH0348270Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a retaining cage used for retaining earthworks and the like.

[Prior Art] In recent years, with the increase in land development, demand for earth retaining construction has rapidly increased. In such earth retaining work, earth retaining baskets called gabions are generally used, which are filled with natural stones, earth and sand, gravel, etc., and installed at predetermined locations.

The above-mentioned soil retaining basket is usually formed of a rhombus-shaped wire mesh, but since the rhombic wire mesh is flexible, the surrounding surface will bulge and deform when filled with soil and stones, reducing the earth retaining function and changing the appearance of the slope. It is easy to cause various inconveniences such as damage. In particular, when the front surfaces of many earth retention baskets are exposed on constructed slopes, the front surfaces are very easily deformed because they are not supported from the outside.
Due to the bulging deformation, a large number of retaining baskets may become irregular, and the height of the retaining baskets may be lowered by the amount of deformation, causing the upper retaining baskets to sink or tilt, making the slope apt to become cluttered.

Therefore, earth retaining baskets are sometimes made of highly rigid welded wire mesh.However, in such earth retaining baskets made of welded wire mesh, the front mesh, back mesh, and side mesh cannot be oriented vertically. The horizontal strands of the surface mesh receive the impact force during filling with earth and stones, the earth pressure after filling, etc. in a downward or diagonal downward direction.
The drawback was that it was easy to peel off from the vertical strands.

[Problems to be solved by the invention] The problem of the invention is that in earth retaining cages formed using welded wire mesh, the horizontal strands of the wires may peel off due to the impact force when filling with earth and stones, the earth pressure after filling, etc. The purpose is to configure the system so that it does not occur.

[Means for Solving the Problems] In order to solve the above problems, the present invention forms at least the front mesh with a welded wire mesh consisting of vertical strands and horizontal strands, and at least the vertical strands of the front mesh It is characterized in that a recess is provided and the horizontal strand is welded to the vertical strand within the recess.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

The retaining basket 1 shown in FIGS. 1 and 2 includes a bottom net 2, a front net 3, a rear net 4, and left and right side nets 5,
5, to which an upper screen (not shown) is attached if necessary.

As shown in FIG. 3, each of the above-mentioned surface meshes 2 to 5 is formed of a welded wire mesh formed by welding vertical strands 7 and horizontal strands 8 at their intersection points, and is oriented vertically. As can be seen from FIG.
A recess 9 is formed by bending the vertical strand 7 at the welding position of the lateral strand, and the lateral strand 8 is fitted into the recess 9, and the lateral strand 8 is welded integrally with the vertical strand 7. .

The thickness and cross-sectional shape of the vertical strand 7 and the horizontal strand 8,
Although the depth of the recess 9 is arbitrary, the deeper the depth, the greater the engagement force of the horizontal strands 8, making it difficult for separation due to positional displacement to occur.

Further, the recess 9 can be provided not only in the vertical strand 7 but also in the intersection of the horizontal strand 8 with the vertical strand.

On the other hand, in the case of the bottom mesh 2, there is less risk of peeling of both the vertical and horizontal wires compared to the above-mentioned vertically oriented surface meshes 3 to 5, so it is a normal welded wire mesh without recesses formed in these wires. It may be formed by Of course, it goes without saying that it may be formed of a welded wire mesh having the same structure as the above-mentioned vertical surface meshes 3 to 5.

In order to more reliably prevent the bulging deformation of the front net 3 in the earth retaining basket 1, as shown in FIG.
It is desirable to provide tension wires 10 and 11 between the front screen 3 and the bottom screen 2, or both of them. It may be stretched.

The earth retaining basket 1 having the above structure is placed at a predetermined location such as a slope, and by filling it with earth and stones, it can be installed in one stage or in multiple stages as shown in Fig. 5. be.

Here, when filling the earth and stones mentioned above or when the filled earth and stones sink, the horizontal wires 8 of the upright face meshes 3 to 5 of the earth retaining basket 1 are subjected to downward or diagonally downward impact force or earth. Although an acting force due to pressure acts, since the horizontal strand 8 is welded in a fitted state within the recess 9 of the vertical strand 7, the engagement force becomes strong and it becomes difficult to move downward, and the It is difficult for peeling to occur. This effect is further improved by arranging the horizontal strands 8 inside the retaining basket 1.

6 and 7 show another example of the structure of the welded wire mesh. In the case of FIG. 6, a protrusion 20 is formed at the lower part of the recess 19 in the vertical strand 17, Therefore, the engagement force of the horizontal strands 18 is increased.On the other hand, in the case shown in FIG. 7, the recesses 29 of the vertical strands 27 are formed sufficiently large,
The slope of the lower side 29b is made larger than that of the upper side 29a, and the engagement force of the horizontal wire 28 is increased by the slope.

In addition, in the above embodiment, the case was explained in which all the side nets 2 to 5 in the retaining cage 1 were formed of welded wire netting, but normally the rear netting 4 is buried in the soil, and the side nettings 5, 5 are , because they are supported from the outside by coming into contact with the side nets of adjacent earth retaining baskets while buried in the soil, they are often difficult to deform or can be slightly deformed; The rear mesh 4 and the side meshes 5, 5, together with the bottom mesh 2, do not necessarily need to be formed of welded wire mesh with the same special structure as the front mesh 3, but may be ordinary welded wire mesh, diamond-shaped wire mesh, or expanded metal wire mesh. It can also be formed by

FIGS. 8 and 9 each show another embodiment of the earth retaining basket, and the earth retaining basket 31 shown in FIG.
is formed into a substantially L-shape by the front mesh 3, 3 and the bottom mesh 32, and at least the front mesh 33 is formed of a welded wire mesh having the above structure, and is supported by supports 36 when the facility is installed. The retaining cage 41 shown in FIG. 9 has a substantially L-shaped main basket material 44 consisting of a front mesh 43 and a bottom mesh 42, at least the front mesh 43 of which is formed of a welded wire mesh having the above-mentioned structure. 44 is supported by a plurality of triangular frame bones 45, and a connecting bone 46 is inserted through a ring 45a formed in the square frame bone 45. These are filled with earth and stone and installed in one or multiple stages.

Front mesh 3, 33, 43 in each of the above embodiments
can be appropriately inclined depending on the angle of the slope and other conditions.

[Effect of the invention] As described above, according to the invention, a recess is provided in at least the vertical strands in the front mesh of the retaining basket, and the horizontal strands are welded to the vertical strands within the recess. is firmly supported in the recess and does not move downward, so the impact force when filling with earth and stones, the earth pressure when earth and stones sink, etc. act on the horizontal strands downward or diagonally downward. Even if the horizontal strands are separated, peeling is unlikely to occur.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of a retaining cage according to the present invention, Fig. 2 is a sectional view thereof, Fig. 3 is a partial front view of a welded wire mesh, Fig. 4 is an enlarged sectional view thereof, and Fig. 5
The figure is a cross-sectional view of the installed state of the earth retaining basket in Figure 1, and Figure 6.
7 and 7 are sectional views similar to FIG. 4 showing different configuration examples of the welded wire mesh, and FIGS. 8 and 9 are perspective views of other embodiments of the present invention, respectively. 3, 33, 43...Front net, 7, 17, 27...
...Vertical wire, 8,18,28...Horizontal wire, 9,1
9, 29... recess.

Claims (1)

[Scope of utility model registration request] At least the front mesh is formed of a welded wire mesh consisting of vertical strands and horizontal strands, a recess is provided in at least the vertical strands of the front mesh, and the lateral strands are welded to the vertical strands in the recess. A basket for retaining earth.