JP3236830B2 - Reservoir and structural wall for retaining formed by it - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earth retaining basket used for earth retaining work on a slope or the like, and an earth retaining structural wall formed thereby.

[0002]

2. Description of the Related Art Conventionally, a wire cage made of wire mesh is used for soil retaining work on sloped land associated with land development, forest development, and the like. The soil cage is filled with debris and installed on a slope or the like. I have to.

On the other hand, there is also a strong demand for effective use of thinned wood for forest preservation and promotion of forestry. For this reason, attempts have been made to use the above-mentioned soil retaining basket and thinned wood for soil retaining work. I have. For example, Japanese Utility Model 3-482
No. 67 discloses that a plurality of logs are stacked on the inside of a front net of an earthen basket, and the earthen basket is filled with mud and the like, and the log is installed at the site. And the effect of promoting vegetation greening due to the decay of each log can be obtained.

[0004] However, since the above-mentioned conventional earthen basin has a log material arranged only inside the front net, it is used under special conditions such as filling the site only with soil and fine rubble at the site. In this case, it cannot be said that the earth retaining cage does not move or tilt due to earth pressure until the entire soil is integrated and stabilized. That is, since this kind of earth retaining basket is usually formed of a relatively coarse wire mesh assuming that the interior thereof is filled with chestnut stone or the like, when only earth and sand or fine gravels are filled therein, the above-mentioned earthen basket is not filled. It is easy to move until the soil inside and outside the earthen basin is sufficiently solidified and integrated and the earthen basin is firmly fixed. In particular, since only the front surface of the storage basket is covered with the log material and the earth pressure easily acts locally, when a large earth pressure acts on this front surface, the rear end of the storage basket is strongly pulled. It is conceivable that he leans forward or shifts.

[0005]

The technical problem of the present invention is that a stable installation state and a superior soil retaining effect can be obtained even when the inside is filled with only earth and sand or fine rubble. At the same time, an object of the present invention is to provide an earthen basin that can also obtain the effect of promoting vegetation greening.

[0006]

According to the present invention, there is provided a rectangular cage body having a bottom net, a front net, a rear net, and left and right side nets made of a net-like material. Along the inner surface of the three nets of the bottom net, the front net and the rear net, respectively, a plant-based soil retaining material having corrosiveness,
An earth retaining basket is provided, which is arranged so as to at least partially close a mesh of each of the screen nets.

The earth retaining basket having the above-mentioned structure is installed at the site with its inside filled with earth and sand or large and small rubble and the like, and a top net is attached as necessary. A soil material made of plants is provided along each of the three surfaces of the net, and earth pressures in different directions are applied to the plurality of surfaces via the earth material. Even if the earth pressure acts toward, the acting force is counteracted by the resistance force by the earth pressure acting downward or backward through the earth retaining material on the bottom net and the rear net,
The retaining cage does not move forward, or the rear is lifted and tilted to the front turning state, and the installed retaining state can exhibit a superior retaining effect.

[0008] When the soil material made of plants decay due to long-term use, the surrounding soil is integrated and stabilized, so that even if the soil material rots, the soil retaining function is sufficiently maintained. On the contrary, there is an effect that decayed soil material becomes a nutrient and vegetation greening is promoted.

According to one specific embodiment of the present invention, the earth retaining material is an elongated rod-shaped material such as wood or bamboo, and the rod-shaped material is densely packed along the inner surface of each of the screen nets. Are installed side by side.

[0010] In the present invention, preferably, a withstand means for supporting an earth pressure acting on the earth material inside the earth material disposed along at least one of the front net and the rear net. Is provided.

[0011] The pressure-resistant means can be constituted by a standing pile standing upright along the inside of the earth retaining material, and a supporting pile supporting the standing pile from inside the earth retaining basket.

In the present invention, an inner net having a finer mesh than that of the front net may be provided inside the earth retaining material arranged along the inner surface of the front net to prevent the filled debris from flowing out. desirable.

Further, according to the present invention, there is provided an earth retaining structure wall formed by connecting a plurality of the above earth retaining baskets in at least the right and left directions in the vertical and horizontal directions.

In the above-mentioned structural wall, when a rod-shaped body as a retaining body is disposed along the front and rear nets of each retaining cage, at least a part thereof is straddled over two adjacent retaining cages. It is desirable to arrange so that it is located. In this manner, by disposing the rod-shaped members so as to straddle between the adjacent retaining cages, the adjacent retaining cages can be easily and reliably coupled to each other with respect to the displacement in the front-rear direction via the rod-shaped members. The soil retention effect can be further enhanced.

According to a preferred embodiment of the present invention, a seam between adjacent rods in a plurality of rod rows stacked along at least one of the front net and the rear net of each retaining cage is provided. , Are arranged at positions different from each other in the upper and lower bar rows. In this way, by shifting the positions of the seams of the rods mutually between the upper and lower rows of rods, the sense of unity of the rods connected in a wall shape can be enhanced and the strength thereof can be increased, and at the same time, each earth retaining basket can be improved. The installation strength can be increased, and as a result, the soil retaining effect can be further enhanced.

[0016]

FIG. 1 illustrates a preferred embodiment of an earthen basin according to the present invention. The earthen basin 1 comprises a bottom net 2a, a front net 2b, a rear net 2c, and left and right side nets. It has a rectangular basket body 2 composed of 2d and 2d. Each of the meshes in the basket body 2 is a diamond wire mesh, a welded wire mesh,
It can be formed of a net material such as a turtle shell wire net or a hard synthetic resin net, and a top net made of a similar net material can be attached to the upper surface of the basket main body 2 as necessary.

Inside the basket body 2, the bottom net 2a
Along with the inner surfaces of the three nets of the front net 2b and the rear net 2c, the soil retaining material 3 made of a corrosive plant is disposed so as to cover a part or all of the mesh of each net. I have.
As the retaining material 3, wood such as logs, bamboo, soda,
Willows, reeds, and the like are suitably used, and are preferably elongated rod-shaped bodies made of wood, bamboo, or the like as shown. In the illustrated embodiment, the retaining material 3 made of the rod-like body is used.
However, they are densely arranged at intervals such that adjacent ones are almost in contact with each other. In this case, it is desirable to select and use the earth retaining material 3 whose thickness, length, and the like are as uniform as possible in order to facilitate the installation. Further, the cross section of the earth retaining material 3 does not necessarily have to be circular, and may be a square cross section or another irregular cross section.

Further, the earth retaining material 3 is connected to each of the meshes 2a, 2b,
2c, the front screen 2b and the rear screen 2
In the case of stacking along the c, it may be installed while appropriately fixing to each surface net with a wire or the like so that they do not collapse or the installation state becomes unstable. Instead of or in combination with fixing, the inner net 5 as shown in FIG. 2 is attached to the inside of the installed earth retaining material 3, and the inner net 5 supports the earth retaining material 3 from the inside. good. In this case, it is desirable that the mesh of the inner net 5 be smaller than the mesh of each face net, and it is particularly preferable that the mesh of the inner net 5 provided inside the front net 2b be smaller than the front net 2b. In addition, the inner net 5 may have a function of discharging earth and sand.

The earth retaining basket 1 having the above structure is filled with earth and sand or large and small rubble or the like, so that, for example, as shown in FIG. It is installed on site in a manner, whereby the retaining wall 10 is formed. At this time, an upper surface net is attached to the upper surface of each of the retaining cages 1 if necessary, but as shown in FIG. 2, the upper retaining cage 1 is shifted rearward from the lower retaining cage 1 so as to be stacked stepwise. When doing, it is also possible to partially attach the upper surface net only to the upper surface portion 11 that is not covered by the upper earth retaining basket 1, and when vertically stacking the upper and lower earth retaining cages 1 without shifting back and forth, The upper surface net can also be attached only to the uppermost storage basket 1, thereby preventing the screen from being doubled at the portion where the upper and lower storage baskets 1 and 1 overlap, thereby saving materials. In addition, the earth retaining baskets 1, 1 adjacent vertically and horizontally are connected by wires or the like as necessary.

The earth retaining basket 1 thus installed is provided with a bottom net 2a.
Since the earthing material 3 is provided along the three surfaces of the front net 2b and the rear net 2c, earth pressures in different directions act on the plurality of surfaces via the earthing material 3, for example, Even if the earth pressure acts on the front net 2b forward or obliquely downward, the acting force is the resistance due to the earth pressure acting downward or rearward on the bottom net 2a and the rear net 2c via the earth retaining material 3. The soil retaining cage 1 is not canceled by the force and does not move forward, or the rear is lifted and tilted to the front turning state, so that the installed state can be stably exhibited and the superior soil retaining effect can be exhibited.

When the soil material 3 rots due to long-term use, the surrounding soil is fixed and integrated and stabilized, so that even if the soil material 3 rots, the soil retaining function is sufficiently maintained. . On the contrary, there is an effect that the decayed soil material 3 becomes a nutrient and vegetation greening is promoted.

As described above, when a plurality of earth retaining baskets 1 are connected side by side to form a structural wall 10, as shown in FIG.
Arranging at least a part of the earth retaining members 3 arranged along the front net 2b and the rear net 2c of each earth basket 1 so as to be located over two adjacent earth baskets 1,1. Is desirable. In this case, it is desirable to form the mesh of each side net 2d sufficiently large so as not to hinder the passage of the earth retaining material 3.

As described above, by disposing the retaining material 3 so as to straddle between the adjacent retaining cages 1 and 1, the adjacent retaining cages 1 and 1 can be arranged in the front-rear direction via the retaining material 3. Coupling can be easily and surely performed with respect to misalignment, and the retaining effect can be further enhanced.

As shown in FIG. 3, adjacent soil retaining members 3 in a plurality of soil retaining material (rod-like body) rows stacked along at least one of the front net 2b and the rear net 2c.
It is desirable to arrange the joints 3a between the three at different positions in the upper and lower tiers of the buckling material rows, whereby the feeling of unity of the buckling materials 3 connected in a wall shape can be enhanced, and the strength thereof can be increased. The installation strength of each retaining cage 1 can be increased, and as a result, the retaining effect can be further enhanced.

FIG. 4A shows a second embodiment of the earth retaining basket according to the present invention, in which soil acting on the earth retaining material 3 is placed inside the earth retaining material 3 arranged along the inner surface of the rear net 2c. A pressure resistance means 6 for supporting pressure is provided. This resistance means 6
Is composed of one or more standing piles 7c erected along the inside of the retaining material 3 so as to support the entire upper and lower retaining materials, and a supporting pile 8 supporting the standing pile 7c. The tip of the support pile 8 abuts or is connected to an appropriate position of the standing pile 7c, for example, the upper end as shown in the figure, and the rear end of the support pile 8 is attached to the front net 3b or the earth retaining material 3 inside the front net 3b. It is arranged almost horizontally so as to abut. In the case where a plurality of the standing piles 7c are provided, the standing piles may be connected to each other by a connecting member such as a horizontal rail, or the like, as shown in FIG. An inner network 5 may be provided.

The provision of the pressure resistance means 6 reduces the earth pressure in the storage basket 1 or increases the pressure behind the storage basket 1 depending on the state of filling of the storage basket 1 with earth and sand or gravels. When the earth pressure acts, it is possible to reliably prevent the earth retaining material 3 from collapsing toward the inside of the earth retaining basket 1.

FIG. 4B shows a third embodiment of an earth retaining basket according to the present invention, which is different from the second embodiment in that the support pile 8 is provided in an inclined state. Have been
At the lower end of the front net 3b, the front net 3b or the retaining material 3
Is that it is in contact with

FIG. 4C shows a third embodiment of an earth retaining basket according to the present invention. The fourth embodiment is different from the third embodiment in that an earth retaining material 3 on the inner surface of a front net 3b is provided. Is also provided inside the stake, and one end of the support stake 8 is
Is connected to the lower end of the. In this case, another supporting pile may be provided between the upper end of the standing pile 7b on the front net 3b and the lower end of the standing pile 7c on the rear net 3c instead of or in combination with the supporting pile 8. it can. Further, instead of the above-described oblique support pile 8, the upright piles 7b, 7c on both sides are used.
A horizontal support pile 8 may be attached between the upper end portions or between the intermediate portions. In addition, depending on the installation mode of the retaining cage 1, the withstanding means 6 as shown in the above (A) and (B) may be provided only on the retaining material 3 on the front net 3b side.

[0029]

As described above, according to the present invention, by providing plant retaining materials along the three surfaces of the bottom net, the front net and the rear net inside the earth retaining basket, sediment and fine gravels are provided. In the case where only soil is used, a stable installation state and an excellent soil retaining effect can be obtained, and at the same time, an effect of promoting vegetation greening due to decay of the soil retaining material can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a preferred embodiment of an earth retaining basket according to the present invention.

FIG. 2 is a cross-sectional view of a structural wall configured by installing the retaining cage of FIG. 1;

FIG. 3 is a front view typically illustrating a preferred embodiment of an earth retaining basket row in the structural wall of FIG. 2 with a bottom row of earth retaining baskets.

FIGS. 4A, 4B, and 4C are cross-sectional views showing different embodiments of the earthen basin of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Soil basket 2 Basket main body 2a Bottom net 2b Front net 2c Rear net 2d Side net 3 Earth retaining material 5 Inner net 6 Resistance means 7b, 7c Standing pile 8 Support pile 10 Structural wall

Claims (8)

(57) [Claims] 1. Inside a rectangular cage body having a bottom net, a front net, a rear net, and left and right side nets made of a net-like material,
Along with the bottom net, the front net, and the inner net of the three nets of the rear net, respectively, corroding plant-made soil retaining materials are arranged so as to at least partially close the mesh of each net. An earthen basin that is characteristic. 2. An earth retaining basket according to claim 1, wherein said earth retaining material is formed of an elongated rod-shaped body such as wood or bamboo, and said rod-shaped bodies are respectively juxtaposed along the inner surface of each of said screen nets. It is characterized by having. 3. An earth retaining basket according to claim 1 or 2,
Resistance means for supporting earth pressure acting on the soil material is provided inside the soil material arranged along at least one of the front net and the rear net. . 4. An earth retaining basket according to claim 3, wherein said pressure resistance means stands upright so as to support the entire upper and lower earthing materials along the inside of said earthing material, and A support pile supported from the inside of the earthen basket. 5. The retaining cage according to any one of claims 1 to 4, wherein the inside of the retaining material disposed along the inner surface of the front net is prevented from flowing out of the filled debris. ,
It is characterized by an inner net that is finer than the front net. 6. A retaining wall comprising a plurality of the retaining cages according to any one of claims 1 to 5, which are formed in a row in at least the right and left directions of up and down and left and right. 7. A method according to claim 6, which is dependent on claim 2.
Claim 3, which is dependent on claim 3, claim 2, and 3, which are dependent on claims 2, 3, and 4, and which is dependent on claim 2, 3, and 5. 6. In the structural wall according to any one of claims 6 to 6, which sequentially depends on claims 2, 3, 4, and 5, out of the rod-shaped members arranged along the front net and the rear net of each retaining cage. At least a part thereof is located straddling two adjacent earthen baskets. 8. The structural wall according to claim 7, wherein said plurality of rod-like rows are vertically stacked along at least one of the front net and the rear net of each of the retaining cages. The joints between the upper and lower bars are arranged at different positions in the upper and lower bars.