JPH0348266Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a retaining basket used for earth retaining work.

[Prior Art] In recent years, with the increase in land development, the demand for earth retaining construction has rapidly increased. For such earth retaining work, earth retaining cages called gabions filled with natural stones (chestnut stones) are usually used, but the number of natural stones that can be used for earth retaining work is decreasing year by year, and it is becoming difficult to obtain them. It's summery. Crushed stone has also been used, but such crushed stone is very expensive, and when earth retaining work is carried out in mountainous areas, transportation costs are added, making it even more expensive. Therefore, in recent years, there have been an increasing number of cases in which soil, gravel, etc. from around construction sites are filled into earth retaining baskets.

However, the above-mentioned conventional earth retaining baskets, called gabions, are made entirely of diamond-shaped wire mesh and are intended to be filled with stones of a certain size or more, so they are not used by being filled with earth and sand or small stones. It is not suitable for Moreover, since the diamond-shaped wire mesh is flexible, the surrounding surfaces are likely to bulge and deform by filling with stones, causing various problems. In particular, when the entire surface of a large number of earth retaining baskets is exposed on a constructed slope, the front surface is most easily deformed because it is not supported from the outside, and this bulging deformation causes many earth retaining baskets to become uneven. The height of the earth retaining basket is reduced by the amount of bending and deformation, causing the upper earth retaining basket to sink or tilt, which tends to make the slope cluttered and seriously spoil the appearance.

A highly rigid earth retaining basket made of expanded metal wire mesh is also known, but although such earth retaining baskets have the advantage that the front surface is less deformed due to stone filling than those made of diamond-shaped wire mesh, There are some disadvantages due to the high rigidity. That is,
In general, earth retaining baskets are often installed in places with weak foundations or irregular topography, so they need to have flexibility so that they can be deformed to some extent according to the unevenness of the ground. However, if the retaining basket is made of expanded metal wire mesh and has high rigidity, it will not adapt well to the terrain, resulting in poor stability.Moreover, if it deforms along uneven surfaces, the filaments will bend and the retaining basket will become unstable. may be damaged.

[Problems to be solved by the invention] The problems of the invention are to have enough flexibility to easily deform in response to ground subsidence and irregular topography, and to prevent bulging deformation even when filled with soil and stones. It is an object of the present invention to provide a retaining basket having a rigidity to the extent that it does not occur.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides an earth retaining net comprising a body net having a bottom part and left and right side parts, and a front net and a rear net attached to the body net. The basket is characterized in that the body mesh is formed of a flexible wire mesh such as a rhombic wire mesh, and at least the front mesh of the front mesh and the rear mesh is formed of a rigid wire mesh such as a welded wire mesh.

[Function] Earth retaining cages are placed at predetermined locations such as slopes,
The earth retention basket is installed by filling its interior with earth and sand or stones using an appropriate method.

In this case, since the body net is formed of a flexible wire net, the body net deforms according to the unevenness of the ground, and the installation is performed stably. Further, since the front screen is formed of a rigid wire mesh, the front screen is unlikely to be bulged and deformed due to filling with earth and sand or stones.

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

As can be seen from the exploded view shown in FIG. 1 and the cross-sectional view of the assembled state shown in FIG. Net 3, rear net 4, and front net 3
and an inner net 5 disposed inside.

The body net 2 has a bottom part 2a and left and right side parts 2.
b, 2b and an upper surface portion 2c, which are made of flexible wire mesh such as rhombic wire mesh having flexibility to the extent that it can be easily deformed according to the unevenness of the ground. A bone line 7 is inserted through each ridge of the body net 2, and frame lines 8a, 8 are inserted at the edges of both ends of the body net 2.
b are attached respectively. This body net 2 is
Although it can be formed by bending one piece of wire mesh into a predetermined shape, it is also possible to form each piece 2a to 2c from an independent wire mesh and connect them to each other.

In addition, the front mesh 3 and the rear mesh 4 attached to the front and rear surfaces of the body mesh 2 are rigid enough to not easily bulge and deform even when filled with earth and stones, such as welded wire mesh or expanded metal wire mesh. It is made of a rigid wire mesh, and the example is a welded wire mesh made of wires 10 and 11 that are thicker and stronger than the row lines 12 of the rhombic wire mesh forming the body mesh 2. is used. In this case, it is often not a problem even if the rear surface of the earth retaining basket 1 that is buried in the soil is slightly deformed;
The rear mesh 4 may be formed using a welded wire mesh having a lower rigidity than the front mesh 3, or may be formed using a flexible wire mesh such as a rhombic wire mesh.

Furthermore, the inner net 5 is used to prevent the earth, sand, gravel, etc. filled in the earth retaining basket 1 from flowing out from the front surface thereof, and can be made of any wire mesh with a mesh small enough to prevent the outflow. Synthetic resin net,
It is made of materials such as wood and bamboo. This inner net 5
Although it is desirable that the lower end 5a is bent toward the rear as shown in the figure, it is not necessarily necessary to do so.

The body net 2, the front net 3, and the rear net 4 are connected with the inner net 5 disposed inside the front net 3, thereby forming the retaining basket 1 as shown in FIG. is assembled. At this time, the trunk net 2, the front net 3, and the rear net 4 can be connected by any arbitrary means. The strand 10a of
11a with appropriate connecting fittings, or as shown in FIG.
is removed from the ring 13 at the end of the row line 12 in the shell net 2, and the outermost strands 10a, 11a of the front net 3 and rear net 4 are sandwiched between the adjacent row lines 12, 12. Frame lines 8a and 8b are ring 13
A method such as inserting the frame lines 8a and 8b through the frame lines 8a and 8b and connecting them by tightening them is preferably adopted.

In addition, in order to more reliably prevent the bulging deformation of the front screen 3, as shown in FIG.
and the rear screen 4, or between the front screen 3 and the bottom part 2a.
15, 16 between or both.
It is preferable that a tension wire 17 be stretched between the upper end of the front mesh 3 and the lower end of the rear mesh 4.

The earth retaining basket 1 having the above configuration is placed at a predetermined location such as a slope, and after filling the basket with earth and sand, gravel, etc. with the top surface 2c open, the top surface 2c is closed. They are installed in one stage or in multiple stages as shown in FIG.

Here, the earth, sand, and gravel filled in the retaining basket 1 are supported by the inner net 5 with a small mesh, and are prevented from flowing out. The pressure caused by the earth and sand and gravel acting on this inner net 5 is supported by the front net 3, but since the front net 3 has high rigidity,
The front mesh 3 does not bulge and deform due to the above pressure. On the other hand, even if the ground has a slightly irregular shape or becomes uneven due to subsidence, the body net 2 made of flexible wire mesh deforms accordingly, so the retaining basket 1 will remain in close contact with the ground. It maintains a stable state and does not float up and reduce the earth retaining effect or cause damage due to bending.

In the above embodiment, the body net 2 is formed into a rectangular cylindrical shape, but the upper surface portion 2c may be omitted.

5 and 6 respectively show other embodiments of the earth retaining basket 1 of the present invention. The one shown in FIG. The one shown in the figure has a parallelogram shape in which both the front mesh 3 and the rear mesh 4 are inclined. The inclination angles of these front nets 3 are appropriately set depending on the installation situation of the retaining basket, such as the angle of the slope.

[Effects of the invention] As described above, according to the invention, the body mesh of the earth retaining basket is made of flexible wire mesh, and the entire surface mesh is made of rigid wire mesh, so even if the ground is slightly uneven, the unevenness By deforming the body net according to the situation, the earth retaining cage can be installed stably by making it fit well with the ground.Moreover, the front net can be bulged and deformed by the acting force associated with filling with earth, sand, gravel, etc. Since there is nothing to do, the earth retaining baskets can be installed in an orderly manner.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view of the earth retaining basket according to the present invention.
Figure 2 is a sectional view of the assembled state, Figure 3 is a perspective view of the main parts showing an example of the assembly method, Figure 4 is a sectional view of the earth retaining basket in use, and Figures 5 and 6 are each of the earth retaining baskets. It is a side view which shows another Example. 1... Dome basket, 2... Trunk net, 2a... Bottom part, 2b... Side part, 3... Front net, 4... Rear net.

Claims (1)

[Scope of utility model registration request] The body net has a bottom part and left and right side parts, and a front net and a rear net are attached to the body net. A retaining cage characterized in that at least the front mesh is made of a rigid wire mesh such as a welded wire mesh.