KR101460949B1 - Gabion Unit and the Construction Method thereof - Google Patents

Abstract

The present invention relates to a gabion, and more specifically to: a gabion of which manufacture and construction are simple and which is solid in structure: and a construction method thereof. A gabion unit according to the present invention comprises: a stone space having a front surface part (121) formed of a wire net, one pair of side surface parts (125) respectively connected to the both side surfaces of the front surface part (121) and formed of a wire net, a bottom part (123) connected to the lower ends of the front surface part (121) and the side surfaces parts (125) and formed of a wire net, and a rear surface part (141) connected to the remaining side surfaces of the one pair of side surface parts (125) and the end of the bottom part (123) and formed of a wire net; a buried part (143) extending backwards from the lower end of the rear surface part (141) and formed of a wire net; a first support wire (145) fixed to the rear surface part (141) in the right and left directions of the rear surface part (141) and having a strength larger than that of the wire mesh forming the rear surface part; a second support wire (146) fixed to the buried part (143) in the right and left directions of the buried part (143) and having a strength larger than that of the wire mesh forming the buried part; and a third support wire (147) connecting the first support wire (145) and the second support wire (146).

Description

[0001] The present invention relates to a gabion unit and a construction method using the gabion unit,

The present invention relates to a garbage, and more particularly, to a garbage which is structurally robust and easy to manufacture and construct, and a construction method thereof.

Gabion (gabion) is a structure that is mainly used when installing a bank, a dam, a retaining wall, and so on. It is advantageous in that it is much simpler to find or construct the material than the natural stone piling method, while providing a relatively less objectionable and environmentally friendly image as compared with the block made of concrete.

Gavion is constructed on riverside slopes and cut slopes to ensure that the slope does not flow down even if water is flooded or heavy rain falls.

On the other hand, garbons are used in construction of retaining walls mainly using concrete blocks. Japanese Patent No. 522548 and Japanese Patent No. 1246268 disclose a construction method of a retaining wall using a garbage. Such a conventional retaining wall construction method has a basic method of laminating the blocked garbons as a whole, partially or vertically.

However, such a conventional garbage-retaining wall has a problem in that the garbage-temperature at the lower part is deformed without being able to overcome the weight of the garbage-layer at the upper part as the garbage-heat is laminated and even the wire mesh is blown.

In addition, many gobion blocks are intertwined with each other, the process is very troublesome, and the air is lengthened and the labor cost is large. In addition, the gobion blocks that are woven together can not support the weight of the gravel, It is a reality that the strength to support the slope is insufficient compared to the concrete block.

In addition, since they must be moved to the unfolded form and assembled at the site, work is slow in the field and raises labor costs.

Patent Registration No. 522548 Published Patent Publication No. 2012-66298 Patent Registration No. 1209477 Patent Registration No. 1246268

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a garbage which can withstand a load and can be flexibly applied to a work environment.

Further, the present invention aims to provide a garbage which can be manufactured conveniently at low cost, can be manufactured at low cost, is easy to move, and can reduce the number of manufacturing operations in the field.

It is another object of the present invention to provide a method of constructing a reinforced earth retaining wall having a rigid structure that can be applied to various applications.

A pair of side portions 125 formed of a wire net and connected to both side surfaces of the front portion 121, a front portion 121 A bottom part 123 formed of a wire net and a rear part connected to the other side of the pair of side parts 125 and the end part of the bottom part 123, 141); A buried portion 143 extending rearward from a lower end of the rear portion 141 and made of a wire mesh; A first braided wire 145 fixed to the rear portion of the rear portion 141 in the left-right direction and having a strength greater than that of the wire net constituting the rear portion; A second stranded wire (146) fixed to the buried portion in the left and right direction of the buried portion (143) and having a strength greater than that of the wire net constituting the buried portion; And a third stranded wire (147) connecting the first stranded wire (145) and the second stranded wire (146).

The first stranded wire 145 fixed to the rear portion 141 in the left and right direction is connected to the first insertion strand 145 formed by bending a wire net portion extending in the vertical direction among the wire nettings of the rear portion 141, And the second stranded wire 146 fixed to the buried portion 143 in the left and right direction is inserted and fixed to the buried portion 143 by a wire mesh portion extending in the front- And the second insertion hole 144 formed by bending it into the second insertion hole 144. [

The pair of side portions 125 may be formed such that the distance between the two side portions 125 gradually decreases toward the front side.

The first and second stranded wires 145 and 146 may be integrally formed at both ends of the third stranded wire 147.

In order to achieve the above object, the present invention provides a method of manufacturing the above-described gabion-type unit, which comprises a front wire net 12 including the front part 121, the side part 125 and the bottom part 123, And fabricating a rear wire net (14) including the rear portion (141) and the buried portion (143), respectively; A first stranding line 145 and a second stranding line 146 are fixed to the rear portion 141 and the buried portion 143 respectively and then fixed to the rear portion 141 and the buried portion 143, Connecting the second stranded wire with a third stranded wire, and joining the front wire net 12 and the rear wire net 14 together.

The front part 121 and the bottom part 123 are fabricated from one wire net while the front part 121 and the side part 125 are connected to each other The front part 121 and the bottom part 123 are connected to each other and then the bottom part of the side part 125 and the bottom part 123 can be connected to each other.

The rear portion 141 and the buried portion 143 are formed of a single wire mesh while the boundary portion between the rear portion 141 and the buried portion 143 is bent to form the rear portion 141 The first and second inserting rings 142 and 142 are formed by bending the upper and lower portions of the wire mesh of the rear portion 141 in a ring shape to the rear, And the second inserting ring 144 can be formed by folding upward in an annular shape.

According to another aspect of the present invention, there is provided a method of constructing the gypsum unit, the method comprising: placing the first gypsum unit on a cutout and filling the stone space with a stone (S); And filling a reinforcing soil (R) on the upper portion of the buried portion (143) as a rear space of the stone space.

In addition, according to the present invention, there is provided a method of manufacturing a building, comprising: placing a second gypsum unit on a first gypsum unit filled with a reinforcing earth (R) in a rear space; And filling the reinforced soil (R) on the upper portion of the buried portion (143) as a rear space of the stone space of the second openable unit.

The stone space of the second opening unit may be positioned behind the stone space of the first opening unit without overlapping with the stone space of the first opening unit when viewed in the up and down direction.

The lower portion of the stone space of the second open-angle unit may overlap the upper portion of the stone space of the first open-angle unit when viewed in the front-rear direction.

The lower front surface of the stone space of the second open-angle unit may be in contact with the upper rear surface of the stone space of the first open-angle unit.

The lowermost unit of the lowermost unit may be installed on the foundation 20.

The front base 30 may be formed in front of the lowermost unit of the lowermost unit.

The first aspect of the present invention is characterized in that the first aspect of the first aspect of the present invention includes the first aspect of the first aspect and the third aspect of the first aspect of the present invention, Positioning the rear end portions of the side portions of the gobion unit to face each other; Connecting the adjoining portions (C) of the rear end portions of the side portions of the third gobness unit and the first gobion unit facing each other to each other to fill the stone space with the stone (S); And filling the upper portion of the buried portion 143 with the reinforcing soil R as a rear space of the stone space.

According to the present invention, since the supporting line can support the earth pressure, it is possible to form the narrow-angle unit member with a high height and a small thickness.

Further, according to the present invention, it is possible to fabricate a gobion-type unit with a small number of parts and air.

In addition, according to the present invention, it is possible to convey individual components conveniently, reduce the amount of work required in the field, and also make it possible to construct without any difficulty in the curved portion.

Further, according to the present invention, it is possible to save the material cost by separately fabricating the portion that receives a lot of load and the portion that receives less.

Further, according to the present invention, the wire diameter of the wire mesh exposed to the outside can be reduced, and the aesthetic appearance is not greatly damaged.

In addition, according to the present invention, it is possible to construct various kinds of applications, select appropriate construction methods according to the construction site and environment, and construct a structure capable of supporting a sufficient load in constructing a retaining wall.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

1 is an exploded perspective view of a gobion unit according to an embodiment of the present invention,
Fig. 2 is a perspective view of the open-top unit of Fig. 1,
FIG. 3 is a side view showing a sequence of constructing the reinforced earth retaining wall by stacking the open-loop unit of FIG. 2 in multiple stages,
FIG. 4 is a side view showing a reinforced earth retaining wall completed according to the procedure of FIG. 3,
Fig. 5 is a side view showing the results of construction of a reinforced earth retaining wall applied to a slope;
6 is a side view showing another construction method of the gobion unit of the present invention,
FIG. 7 is a side view showing a state in which the garbion unit of the present invention is installed in a draining vessel;
FIG. 8 is a side view showing a state in which the gypsum unit of the present invention is installed in a water channel, and
9 is a plan view showing a state in which the gobion unit of the present invention is installed in a curved portion.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a gobion unit according to the present invention and a construction method using the same will be described in detail with reference to the accompanying drawings.

It is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to inform.

[Gavion monomers]

FIG. 1 is an exploded perspective view of a gobion unit according to an embodiment of the present invention, and FIG. 2 is a perspective view of a gobion unit of FIG. 1. FIG. As shown in FIG. 1, the garniture unit 1 is divided into a front wire netting 12 and a rear wire netting 14, and then the front and rear wire nettings 14 and 14 are combined to complete the process as shown in FIG.

The front wire net 12 has a rectangular shape and is composed of a front part 121 installed at a right angle to the front part 121 and a ground at the bottom of the front part 121, A bottom portion 123 extending in parallel to the horizontal direction, and side portions 125 connected to both ends of the front portion 121 and vertically installed to the ground. That is, the front part 121 and the bottom part 123 are perpendicular to each other, and the side part 125 and the bottom part 123 are perpendicular to each other. Since the bottom part 123 has a trapezoidal shape that becomes narrower toward the connection part with the front part 121 and the side part 125 is connected to the trapezoidal hypotenuse part of the bottom part 123, Are connected at an obtuse angle.

The front part 121, the side part 125, and the bottom part 123 are made of a single wire mesh. 1, a planar wire net is formed in the form of an exploded view in which a connection part between the side part 125 and the bottom part 123 is cut, and the planar wire net is folded to form the front part 121 and the side part 125, And the bottom part 123 is connected to a connecting part such as a wire or a spring by a part where the side part 125 and the bottom part 123 are in contact with each other.

In the embodiment of the present invention, the front portion and the side portion are both in the form of a flat plate. However, it is not necessary that the front portion and the side portion are formed in a flat plate shape bent to form a curved surface from the side portion to the front portion, The bottom may have an arc shape. In other words, if the distance between the two side portions is narrowed gradually toward the front portion, it is possible to connect the narrow width unit members side by side even in the curved region shown in FIG. In addition, since a plurality of front nettings can be stacked by fabricating the front netting net 12 in this form, it is possible to automate the front netting net and to move it to the site. In other words, it can be seen how convenient the present invention is in comparison with the conventional cuboid shape gobbons which must be made in a cubic shape after moving to the field.

Next, the rear wire netting 14 has a rectangular shape and has a rear portion 141 installed perpendicularly to the ground (i.e., in the same direction as the gravitational direction), connected at right angles to the lower end of the rear portion 141, And a buried portion 143 extending in the horizontal direction in parallel with the ground. The rear portion 141 is formed with a first insertion ring 142 protruding rearward and a second insertion ring 144 protruding upward is formed in the filling portion 143. [

The rear portion 141 and the buried portion 143 are made of a single wire mesh. That is, when the long-shaped wire net is bent at a right angle, the rear portion 141 and the buried portion 143 are formed. When the upper and lower portions of the wire net of the rear portion 141 are bent backward, And the second inserting ring 144 is formed when the forward and backward portions of the wire mesh of the embedding portion 143 are bent upward in an annular shape.

Since it is possible to stack a plurality of front wire nettings by manufacturing the rear wire netting 14 in this form, it is possible to automate the manufacturing of the rear wire nettings at the factory and then move them to the field.

As described above, when the gabion-heating unit 1 of the embodiment shown in Fig. 2 is separately manufactured by the front wire net 12 and the rear wire net 14 in the above-described manner, The portion can be minimized.

On the other hand, the first and second stranded wires 145 and 146 are inserted into the first and second insertion rings 142 and 144 of the rear wire netting 14, respectively. A plurality of third supporting strands 147 each having an annular shape at both ends are disposed in an oblique direction, and the first supporting strands 145 and the second supporting strands 146 are connected to both ends thereof.

The front wire netting 12 and the rear side wire netting 14 are manufactured separately, and after the process of bending the front wire netting 12 and the backing wire netting 14, they are stacked by the necessary amount and moved to the site. In addition, the front wire net 12 and the rear wire net 14 are connected to each other in the field, and the support wires are installed on the rear wire netting.

When the gypsum unit completed in the field is disposed on the cutout, the stone (S) is placed in the stone space formed by the front part 121, the side part 125, the rear part 141 and the bottom part 123 as shown in FIG. ). At the same time, the space corresponding to the upper portion of the buried portion 143 is filled with the reinforcing soil R as a rear space of the stone space. Here, the stone can have a size of, for example, 80 to 150 mm.

The earth pressure of the reinforcing earth R is applied to the rear portion 141 and the buried portion 143, that is, the rear surface wire netting 14 And is not substantially transmitted to the front portion of the wire netting 12, that is, the front portion 121, the bottom portion 123, and the side portion 125. Since the front wire net 12 can withstand the load of the stone S filled in the stone space, it is exposed to a relatively small load than the rear wire netting. Therefore, in the present invention, the front wire mesh which can withstand a relatively small load is made of a galvanized steel wire net with a diameter of 4 to 5 mm, and the rear side wire net which has to withstand a larger load is a galvanized steel wire with a diameter of 5 to 6 mm By using wire netting, material cost can be reduced. In addition, since the front wire mesh is exposed to the outside, it is preferable that the diameter of the wire mesh is thin, and the present invention precisely meets these conditions.

In addition, since the front part, the bottom part, and the side part of the load are small, and the rear part and the buried part of the rear part are made of the rear wire net, It is advantageous to use a wire mesh of different diameter.

On the other hand, the backside wire net must withstand the earth pressure as a whole, but the stranded wire must withstand the same earth pressure, so the stranded wire must be stronger than the wire rope of the backside wire net. Therefore, it is preferable that the diameter of the supporting line is 8 mm or more.

[Construction of Gwbion Unit]

Hereinafter, the construction method of the gabion-type unit described above will be described.

FIG. 3 is a side view showing a sequence of constructing the reinforced earth retaining wall by stacking the open-loop unit of FIG. 2 in multiple stages and FIG. 4 is a side view showing the reinforced earth retaining wall completed according to the procedure of FIG.

As shown in Fig. 3 (a), the gobion-type unit 1, which has been assembled in the field, is placed on the cut-out paper. Then, the stone (S) is filled in the stone space and the reinforcing soil (R) is filled on the buried portion (143) behind the stone space.

Next, as shown in FIG. 3 (b), a second gypsum unit is mounted on the first gypsum unit having the rear space filled with the reinforcing earth (R). Then, the stone (S) is filled in the stone space and the reinforcing soil (R) is filled on the buried portion (143) behind the stone space.

Likewise, as shown in FIG. 3 (c), a third gobion-type unit is mounted on the upper portion of the second gobion unit, in which the reinforcing soil (R) is filled in the rear space. Then, the stone (S) is filled in the stone space and the reinforcing soil (R) is filled on the buried portion (143) behind the stone space.

When the reinforced earth retaining wall is constructed by stacking the garbons in this manner, as shown in FIG.

When stacking the glow-in-1 units 1, the stone spaces of the glow-in unit units in the upper layer are arranged behind the stone spaces of the glow-room units in the lower layer when viewed in the up-and-down direction so that the stone spaces between the upper and lower layers are not overlapped, So that the stone space of the upper layer is prevented from deforming or popping due to the weight of the upper layer.

When the gypsum unit 1 is laminated, the lower end of the stone space of the upper gypsum unit in the upper layer is disposed below the upper end of the stone space of the gypsum unit in the immediately lower layer, So that the lower part of the stone space of the lower unit overlaps with the upper part of the stone space of the lower unit. This allows a lower portion of the stone space of the gypsum unit 1 to be partially embedded in the reinforcing soil R so that the reinforcing earth R on the lower front surface of the embedded stone space can withstand the earth pressure acting under the stone space, Thereby allowing the load acting on the lower portion of the space to be sufficiently sustained. That is, the upper part of the stone space of the gypsum unit is sufficiently supported by the supporting beams, while the lower part of the stone space of the gypsum unit may be relatively weaker than the upper part, so it is desirable to construct a more stable retaining wall through the above- .

As shown in FIGS. 3 to 4, when the lower front surface of the upper garbons of the upper garbons is brought into contact with the upper rear surface of the lower garbons of the garbons, It is possible to construct a more stable retaining wall.

Therefore, even when a retaining wall of steep slope is constructed as shown in Fig. 4, the retaining wall can be constructed without any problem. On the other hand, with respect to the lowermost gypsum unit, a foundation 20 is provided on the ground to prevent settlement, and a front foundation 30 is placed on the entire stone space to sufficiently withstand the earth pressure acting under the stone space .

When the gypsum unit according to the present invention having the above-described characteristics is applied with such a structure, the earth pressure with which the stone space can withstand is increased, so that the height of the stone space can be increased to about 500 to 1000 mm, And the length of the buried portion 143 may be approximately 350 to 1000 mm.

FIG. 5 is an example of a retaining wall according to another embodiment of the present invention, in which a relatively gently sloping slope is cut in comparison with FIG. 4 to construct a multi-stage retaining wall. As described above, when stacking the gypsum unit 1, the stone space of the gypsum unit in the upper layer is disposed behind the stone space of the gypsum unit in the lower layer when viewed in the up-and-down direction, The lower end of the stone room of the gwionon unit is arranged below the upper end of the stone room of the gwionon unit immediately below. On the gentle slope, since the earth pressure behind the gypsum unit (1) on the upper layer has little effect on the gypsum unit on the lower layer, the lower front surface of the gypsum unit on the upper gypsum unit, as shown in Figs. 3 to 4, There is no problem in that it is not in contact with the upper rear surface of the stone space of the gobion unit.

FIG. 6 is a side view showing another construction method of the gobion unit of the present invention. 6, in comparison with FIG. 5, in the stacking of the gyromon unit 1, the stone space of the gypsum unit in the upper layer is arranged behind the stone space of the gypsum unit in the lower layer as viewed in the up and down direction, , The lower end of the stone space of the gabion unit in the upper layer coincides with the upper end of the stone space of the gabion unit in the lower layer. Such a method can be used in places where the earth pressure is not a problem, for example, when building a slope of a mountain slope.

Fig. 7 is a side view showing a state in which the gypsum unit of the present invention is installed in a pouring vessel; Fig. Gavion is an excellent drainage system because it has enough structure to allow the rainwater that leaks through the pores between the stones to escape sufficiently. Therefore, when the gavion block is used instead of the concrete block to construct the drainage gates, It is more in conformity with the function of the original.

Fig. 8 is a side view showing a state in which the gypsum unit of the present invention is installed in a water channel. Fig. As shown in the figure, if the rainwater seeped into the sidewall through the drainage function of the garbage can be drained naturally by the waterway, the collapse of the sidewall can be prevented.

9 is a plan view showing a state in which the gobion unit of the present invention is installed in a curved portion. In the present invention, when the gobion units are arranged side by side, the adjoining portions (C) facing each other between adjacent gobion units are connected to each other. As described above, since the side part 125 of the present invention has a trapezoidal shape with a narrower width as the front part 121 is closer to the front part 121, the curved part can be constructed without any difficulty as shown in FIG. .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious that it can be done. Although the embodiments of the present invention have been described in detail above, the effects of the present invention are not explicitly described and described, but it is needless to say that the effects that can be predicted by the configurations should also be recognized.

1: Gavion unit
12: Front wire netting
121: front part
123:
125:
14: Rear wire net
141:
142: first insert ring
143:
144: second inserting ring
145: First strand
146: Second strand
147: Third strand
20: foundation stand
30: Front Basics
S: Stone
R: Reinforcing soil
C: Adjacent portion

Claims (15)

A pair of side portions 125 connected to both side surfaces of the front portion 121 and made of a wire net and a lower portion of the bottom portion and the side portion 125 of the front portion 121, A stone space having a bottom part 123 made of a wire net and a rear part 141 connected to the other side of the pair of side parts 125 and the end part of the bottom part 123 and made of a wire mesh;
A buried portion 143 extending rearward from a lower end of the rear portion 141 and made of a wire mesh;
A first braided wire 145 fixed to the rear portion of the rear portion 141 in the left-right direction and having a strength greater than that of the wire net constituting the rear portion;
A second stranded wire (146) fixed to the buried portion in the left and right direction of the buried portion (143) and having a strength greater than that of the wire net constituting the buried portion; And
And a third strut 147 connecting the first strut 145 and the second strut 146,
The first stranded wire 145 fixed to the rear portion 141 in the left and right direction has a first inserting portion 142 formed by bending a wire net portion extending in the vertical direction of the wire net of the rear portion 141 rearward, And is fixed,
The second stranded wire 146 fixed to the buried portion 143 in the left and right direction is formed by a second inserting ring 146 formed by bending a wire net portion extending in the front- (144), and is fixed.
delete The method according to claim 1,
Wherein the pair of side portions (125) are formed in such a manner that the distance between the two side portions (125) gradually decreases toward the front side.
The method according to claim 1,
Wherein the first and second stranded wires (145) and (146) are integrally formed at both ends of the third stranded wire (147) with a ring that can be hooked to the first stranded wire (145) and the second stranded wire (146).
A method for producing the glow-in-1 unit according to any one of claims 1, 3 and 4,
A front wire net 12 including the front part 121, the side part 125 and the bottom part 123 is manufactured and the rear wire net 14 including the rear part 141 and the buried part 143 Producing; And
The first and second stranding wires 145 and 146 are fixed to the rear portion 141 and the buried portion 143 and then the first stranding wire 145 and the second stranding wire 146 are fixed to the rear portion 141 and the buried portion 143, And connecting the front wire netting (12) and the rear side wire netting (14) by connecting the two stranding wires with a third stranding wire.
The method of claim 5,
The front part 121 and the bottom part 123 are fabricated from one wire net while the front part 121 and the side part 125 are connected to each other And the front part 121 and the bottom part 123 are connected to each other,
Wherein the bottom part of the side part (125) and the bottom part (123) are connected to each other.
The method of claim 5,
The rear portion 141 and the buried portion 143 are formed of a single wire mesh while the boundary portion between the rear portion 141 and the buried portion 143 is bent to form the rear portion 141 The first and second inserting rings 142 and 142 are formed by bending the upper and lower portions of the wire mesh of the rear portion 141 in a ring shape to the rear, And the second inserting ring (144) is formed by folding upward in an annular shape.
A construction method using the gypsum unit according to claim 1, claim 3, or claim 4,
Disposing the first gypsum unit on the cutout and filling the stone space with stones (S); And
And filling the upper portion of the buried portion (143) with a reinforcing earth (R) as a rear space of the stone space.
The method of claim 8,
Placing a second gypsum unit on top of the first gypsum unit filled with reinforcing soil (R) in a rear space and filling the stone space with stones (S); And
And filling the upper portion of the buried portion (143) with the reinforcing soil (R) as a rear space of the stone space of the second gyre unit.
The method of claim 9,
Wherein the stone space of the second gyre unit does not overlap with the stone space of the first gypsum unit when viewed in the vertical direction and is located behind the stone space of the first gypsum unit.
The method of claim 10,
Wherein the lower portion of the stone space of the second gyre-in unit unit overlaps with the upper portion of the stone space of the first gyre-in unit unit when viewed in the front-rear direction.
The method of claim 11,
Wherein the lower front surface of the stone space of the second grate unit is in contact with the upper rear surface of the stone space of the first grate unit.
The method of claim 8,
Wherein the lowermost unit of the lowermost unit is installed on the foundation.

The method of claim 9,
Wherein the front base (30) is formed in front of the lowermost unit of the lowermost unit, and the bottom of the bottom of the lowermost unit is partially embedded.
A method of using the open-end unit of claim 3,
And a third opening unit disposed on the side of the first opening unit and arranged in parallel with the first opening unit, wherein the first opening unit and the third opening unit are disposed on the side of the first opening unit, Disposing the ends so that they abut against each other;
Connecting the adjoining portions (C) of the rear end portions of the side portions of the third gobness unit and the first gobion unit facing each other to each other to fill the stone space with the stone (S); And
And filling the upper portion of the buried portion (143) with a reinforcing earth (R) as a rear space of the stone space.

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