KR102616011B1 - Reinforced wall panel and Constructing method thereof - Google Patents

Abstract

The present invention relates to a panel for constructing a reinforced soil retaining wall and its construction method, wherein a through passage 330 is provided on the inside to directly connect the strip-shaped fiber reinforcement 100 embedded in the reinforced soil 500 to the panel 200. The left and right entrances 310 and 320 of the formed reinforcement insertion hole 300 are exposed to the rear 210 of the panel 200; The thickness (T) of the middle part of the panel 200 between the entrances 310 and 320 on both sides is relatively thicker than the thickness (t) of the outer part of the panel 200 outside the entrances 310 on both sides, and the panel 200 For uneven coupling between panels adjacent to each other on the left and right, uneven coupling parts 222,232 are formed on the left and right sides 220,230, and the uneven coupling parts 222,232 are in a state in which the left and right sides 220,230 themselves are tapered inward to the rear surface 210. It is possible to construct a straight retaining wall and a curved retaining wall with the left and right sides of the front 240 of the panels 200 adjacent to each other on the left and right being in contact with each other.

Description

Reinforced retaining wall panel and its construction method {Reinforced wall panel and Constructing method thereof}

The present invention relates to a panel for constructing a reinforced earth retaining wall and its construction method. In addition to reducing the weight of the panel and improving productivity, the amount of carbon dioxide generated during the production process can be minimized, and the construction of a quick and strong stacked retaining wall is possible. It was made possible.

The prior art related to the present invention discloses a panel for constructing a reinforced soil retaining wall in Patent Document 1 developed by the present applicant, which is a panel that is a facing member in a reinforced soil retaining wall in which compaction is performed while embedding a strip-shaped fiber reinforcement in the reinforced soil body. By connecting the strip-shaped fiber reinforcement directly to the panel and maximizing the connection strength between the panel and the reinforcement, the connection points of the reinforcement can be minimized, thereby reducing the amount of reinforcement required and the amount of laying work, thereby reducing material costs and shortening the construction period. The productivity of the panel can also be improved by reducing the amount of work required to insert the reinforcing material.

On the other hand, the panel according to Patent Document 1 has a structure that is constructed in a straight line construction method like the existing panel, and the thickness of the panel is thick and heavy, logistics costs account for a high proportion, productivity is lowered, and production is possible only in large-scale factories. There was a problem that it was possible, and in the production process of panels made of cement, the amount of cement used increased, and there was also a problem that carbon dioxide emissions increased proportionally, and at least two types of panels were needed to build a retaining wall, and a curved retaining wall was built. There was a limit to this, and during the construction process, the process of folding and overlapping the reinforcement material to half width at the reinforcement insertion hole inside the panel was complicated and increased the fatigue of workers. Also, when erecting the panel during the construction process, there was a problem that there was a gap between the panels adjacent to the left and right. It had the disadvantage of requiring temporary fixtures such as temporary fixing clamps for support.

Korean Patent No. 10-2034144 (registered on October 14, 2019)

The present invention was created to solve the above problems. The purpose of the present invention is, first, to minimize the thickness of the panel and reduce the weight, thereby reducing material and logistics costs and minimizing carbon dioxide emissions during production and transportation. However, it is possible to strengthen the connection between the reinforcement and the panel and apply reinforcement with high tensile strength, making it possible to build a reinforced soil retaining wall with a strong structure, and to quickly connect the reinforcement to the panel, minimizing the labor input and construction at the same time. The period can be shortened, and straight and curved retaining walls can be built using a stacked construction method using only one type of unified panel. However, by strengthening the bonding force between adjacent panels on the left and right, it is possible to prevent the panels from falling or being pushed during the construction process. The goal is to provide lightweight reinforced soil retaining wall panels.

The present invention also aims to provide a construction method for quickly and robustly constructing straight and curved reinforced soil retaining walls using the above-described panels without requiring separate auxiliary materials.

In order to achieve the above object, the present invention is a reinforced soil retaining wall construction panel in which the left and right entrances of the reinforcing material insertion hole with a through passage formed on the inside are exposed to the rear of the panel to directly connect the strip-shaped fiber reinforcement buried in the reinforced soil to the panel;

The thickness of the middle part of the panel between the entrances on both sides is relatively thicker than the thickness of the outer part of the panel outside the entrances on both sides, and the panel has uneven coupling portions formed on the left and right sides for uneven coupling between panels adjacent to each other on the left and right. It provides a panel for a reinforced earth retaining wall in which a recessed portion and an iron portion are formed in a state where the portion is tapered toward the inner rear side, enabling the construction of a straight retaining wall and a curved retaining wall.

In a preferred embodiment, a locking protrusion is formed on the rear side of the lower surface of the panel to prevent the upper panel from being pushed when the rear panel is assembled.

In addition, the present invention is a method of constructing a reinforced soil retaining wall using the above-described panels, in which panels constructed in multiple stages up and down are constructed in a stacking manner, and a single strip-shaped insert is formed in the reinforcing material insertion hole formed at the rear between adjacent panels on the left and right. Fiber reinforcement is continuously inserted and spread on the reinforced soil to be buried. A wedge-shaped insert for temporary fixation between panels is inserted into the spaced gap between the uneven joints between the left and right panels. After compacting the backfill soil into the reinforced soil, the insert is separated. Provides a construction method for a reinforced earth retaining wall panel that is reused for the upper panel.

According to the reinforced earth retaining wall panel according to the present invention and its construction method described above, it is possible to reduce logistics costs by reducing the weight of the panel, and it is possible to quickly construct straight and curved retaining walls with a strong structure without requiring separate auxiliary materials with just one type of unified panel. It can be constructed easily, and due to the thinner thickness of the panel, curing is fast after forming in the mold, resulting in excellent productivity. In addition, the outdoor storage space can be minimized, making production and storage in a small space possible. Panels per unit area of the retaining wall are possible. There are useful effects such as minimizing the amount of carbon dioxide generated during the production process by actively reducing the amount of cement required by minimizing the weight of the cement.

1 is a front perspective view of a panel according to an embodiment of the present invention;
Figure 2 is a perspective view of the rear portion of the panel shown in Figure 1;
Figure 3 is a rear view of the panel shown in Figure 2;
Figure 4 is a cross-sectional view taken along line A-A of Figure 3;
Figure 5 is a front perspective view of a panel according to another embodiment of the present invention;
Figure 6 is an enlarged cross-sectional view taken along line B-B of Figure 5;
Figure 7 is a perspective view of the construction state of a straight retaining wall;
Figure 8 is a rear perspective view of the retaining wall showing the state of Figure 7;
Figure 9 is an enlarged view of the main part of Figure 8;
Figure 10 is a perspective view showing the continuous connection state of the reinforcement;
Figure 11 is a perspective view showing a state in which the reinforcement is connected to the reinforcement insertion hole inside the panel in Figure 10;
Figure 12 is a side cross-sectional view of a straight retaining wall in its construction state;
13 is a flowchart showing the construction process of the panel according to the present invention;
Figure 14 is a plan view showing the construction state of a curved retaining wall;
Figure 15 is an enlarged view of part C of Figure 14;
Figure 16 is an enlarged view of part D of Figure 14;
Figure 17 shows a state in which inserts are inserted between panels when constructing a recessed, straight, or protruding retaining wall.

Hereinafter, preferred embodiments that do not limit the present invention will be described in detail with reference to the attached drawings.

1 to 4 show a panel for constructing a reinforced soil retaining wall according to an embodiment of the present invention.

As shown in the attached drawing, in this embodiment, the reinforcing material insertion hole 300 is formed with a through passage 330 on the inside to directly connect the strip-shaped fiber reinforcement 100 embedded in the reinforced soil 500 to the panel 200. The left and right entrances (310,320) are exposed to the rear (210) as a reinforced soil retaining wall construction panel (200);

The thickness (T) of the middle part of the panel 200 between the entrances 310 and 320 on both sides is relatively thicker than the thickness (t) of the outer part of the panel 200 outside the entrances 310 on both sides, and the panel 200 For uneven coupling between panels adjacent to each other on the left and right, uneven coupling parts 222,232 are formed on the left and right sides 220,230, and the uneven coupling parts 222,232 are in a state in which the left and right sides 220,230 themselves are tapered inward to the rear surface 210. It is possible to construct a straight retaining wall and a curved retaining wall with the left and right sides of the front 240 of the panels 200 adjacent to each other on the left and right being in contact with each other.

In addition, in this embodiment, a locking protrusion 262 is formed on the rear side of the lower surface 260 of the panel 200 to prevent the upper panel from being pushed when the panel is rear-engaged, so that it is caught on the rear upper surface of the lower panel, thereby preventing the rear-engaged construction. It is possible (shown in Figure 13).

Meanwhile, in this embodiment, the stopping protrusion 262 is preferably located at the vertical lower part of the inlets 310 and 320, but is not limited thereto.

In the drawing, symbol 250 is the top surface of the panel 200, symbol M is the middle part of the panel, and symbol S is the outer part of the panel.

In this embodiment, the panel 200 has a width and height of 1000 to 1400 mm and 50 to 75 cm, respectively, which is about 0.5 to 1 m2, the middle part (M) has a thickness of 140 to 180 mm, and the outer part (S) has a thickness of 80 mm. At ~115mm, the weight of one panel is about 200~250kg, so it is reduced to about 2/3 the weight of existing panels of the same size, which can reduce logistics costs and improve productivity.

In this embodiment, the reinforcing material insertion hole 300 inserted into the panel 200 has entrances 310 and 320 on both sides located at approximately 1/4 and 3/4 of the position where the width of the panel is divided into four. The left and right widths of the inlets 310 and 320 are wide at 10 to 20 cm, but the inner anteroposterior width of the part inserted into the middle part (M) of the panel 200 is about 8 to 14 mm, and the band-shaped fiber reinforcement 100 is inserted in an unfolded state. It is designed to maintain close contact, and the reinforcing material insertion hole 300 has a large curvature and is deeply inserted into the middle portion (M) of the panel 200, that is, the middle portion of the reinforcing material insertion hole 300. The thickness from to the rear 210 of the panel 200 accounts for about 1/2 to 2/3 of the thickness of the middle part (M) of the panel 200, which increases the bearing capacity of the strip-shaped fiber reinforcement 100 inserted inside. It has a structure that can be sufficiently evenly distributed throughout the panel 200.

The panel 200 according to this embodiment is wet-molded in a mold, cured, and then demolded. The rear 210 is located at the top of the mold and is opened, and the reinforcing material insertion hole 100 is inserted. Mortar is injected and molded.

In the drawing, it is shown that a frame such as reinforcing bars is not arranged inside the panel, but it is of course necessary to arrange the frame vertically and horizontally in order to improve the structural strength of the panel itself.

In this embodiment, the left and right sides 220 and 230 of the panel 200 are formed to be tapered by a predetermined angle θ to the inside of the rear 210, as can be seen in the cross-sectional view of FIG. 4, and are uneven and convex. The parts 222 and 232 extend at right angles toward the inside and outside from the tapered sides 220 and 230, so that when constructing a straight retaining wall as well as a curved retaining wall, the left and right sides of the front 240 of the left and right adjacent panels 200 are Since they are built in contact with each other, loss of backfill soil (500; reinforcing soil) can be prevented. However, the left and right uneven joints (222, 232) spaced apart from each other improve the bonding force (bearing force) between the left and right panels (200) during the construction process. Stability in the construction process can be ensured by filling and compacting backfill soil while inserting a wedge-shaped temporary fixing insert (400) to prevent the panel from sliding or falling.

In this embodiment, the tapered angle can be manufactured in various ways by taking into account the left and right width and thickness of the panel and the curvature of the straight retaining wall at the construction site.

5 and 6 show a panel for constructing a reinforced soil retaining wall according to another embodiment of the present invention. The basic structure of the panel 200 according to this embodiment is the panel of the embodiment shown in FIGS. 1 to 4 described above. It is the same as, but the shape of the front 240 of the middle part (M) of the panel 200 is different. In this embodiment, the middle part (M) has an indented groove to enable weight reduction within the range without weakening the structural strength. (242) is formed, and the indented groove 242 is inserted inside the middle portion (M), causing interference with the reinforcing material insertion hole 300, which has entrances 310 and 320 exposed on both left and right sides of the rear 210. It is formed long in the left and right directions on the upper and lower sides of the reinforcement insertion hole 300 so as not to do so.

In this embodiment, the indented groove 242 is formed to a depth of about 50 to 70 mm to a depth corresponding to the front of the outer portion S, and has a top and bottom width of 13 to 25 cm, When formed continuously from the left side to the right side of the middle part (M), the weight can be reduced by about 25 to 30 kg compared to the panel of the embodiment shown in Figures 1 to 4, minimizing the thickness of the panel and reducing the weight as much as possible. This has the advantage of reducing material costs and logistics costs, and fully achieving the purpose of the present invention to improve productivity by shortening curing time.

In addition, the panel 200 according to this embodiment has an appearance in which the indented groove 242 formed on the front surface 240 of the middle portion (M) prevents the front surface of the panel 200 exposed to the outside from being plain. In addition to acting as a design element, it can also serve the function of absorbing noise from roads, etc. by maximizing the surface area of the front of the panel.

More preferably, the upper, lower, left, and right surfaces inside the indented groove 242 are tapered at a predetermined angle as shown in the cross-sectional view of FIG. 7 to facilitate separation from the mold. When constructing a retaining wall, it is ensured to maintain a structurally stable state against the compressive load acting up and down the middle part (M) and the lateral pressure acting in the lateral direction.

In this embodiment, the indented grooves 242 are shown to be formed in two long horizontal directions at the upper and lower parts of the middle portion (M). However, the present invention is not limited to this and the structural strength of the middle portion (M) is shown. Of course, if interference with the reinforcement insertion hole 300 can be minimized without weakening the panel, it can be manufactured in various designs for the appearance of the panel.

Hereinafter, a method of constructing a retaining wall using the above-described panel 200 will be described.

7 to 12 show the construction of a straight reinforced soil retaining wall using the panel 200 according to the present invention, in which the panels 200 are stacked in multiple stages up and down on the foundation (Z), A row of strip-shaped fiber reinforcements (100) are continuously inserted into the reinforcement insertion holes (310,320) formed on the rear surfaces (210) of panels (200) adjacent to each other on the left and right, and are spread and buried on the reinforced soil, creating an uneven joint between the left and right panels (200). The backfill soil is compacted with the insert 400 inserted into the spaced gap (g) of the parts 222 and 232, and then the insert 400 is separated and reused in the upper panel.

To explain this in more detail, as shown in FIG. 13, while building the panels 200 one step at a time on the foundation (Z; see a in FIG. 13) (see b in FIG. 13), the gap between the panels 200 adjacent to each other on the left and right is maintained. The insert 400 is inserted into the gap g between the uneven joints 222 and 232 so that the left and right panels 200 are tightly coupled to each other without any gap, and then the backfill soil 500 is first placed on the panel. Fill and compact to half the height of (200), that is, the height of the reinforcement insertion hole (300) (see c in Figure 13).

Next, a row of strip-shaped fiber reinforcement (100) is filled to half the height of the panel (200) and placed at the left and right entrances (310,320) of the reinforcement insertion hole (300) open to the rear of the left and right adjacent panels (200) on the compacted reinforced soil. After continuously inserting and spreading it on the reinforced soil (see d and e in Figure 13), the backfill soil 500 is filled and compacted to the top of the panel 200, and the strip-shaped fiber reinforcement 100 is buried in the reinforced soil ( (see f in FIG. 13).

Finally, the insert 400, which was inserted between the uneven joints 222 and 232 between the panels 200 adjacent to each other on the left and right, was dismantled and reused when building the next panel, as shown in g in FIG. 13, and built to the designed height (FIG. 13 (see h).

Meanwhile, in the above description, the backfill soil 500 ultimately means a reinforced soil body, and the position adjacent to the panel is filled with gravel for drainage to a predetermined width.

By repeating the above-mentioned process, it is possible to construct a reinforced soil retaining wall of the designed height. In the process of constructing a reinforced soil retaining wall, a panel-type retaining wall is constructed like the existing block-type retaining wall construction without using separate clamps or auxiliary supports. You will be able to do it.

In the retaining wall construction method according to the present invention, the strip-shaped fiber reinforcement (100) is connected to the panels adjacent to the left and right in a continuous zigzag manner, is pulled out to the rear and spread over the reinforced soil, and the rear end is erected and buried at full width to form a passive resistance section. , the strip-shaped fiber reinforcement (100) is inserted into the reinforcement insertion hole (300) of the panel (200), pulled out backwards on the reinforced soil, laid out, and formed a passive resistance portion at the rear end. The process of forming a passive resistance portion at the rear end is done quickly and effortlessly by only one worker. Since construction becomes possible, there is an advantage that work speed can be significantly improved.

In addition, in the construction method according to the present invention, the strip-shaped fiber reinforcement 100 inserted into the reinforcement insertion hole 300 of the panel 200 is erected at full width inside the reinforcement insertion opening 300, and the reinforcement insertion opening having a predetermined curvature is Since it is in close contact with the inner surface, there is no risk of loosening of the strip-shaped fiber reinforcement (100), and the contact area of the strip-shaped fiber reinforcement (100) connected across the entire width is wide, strengthening the connection strength between the panel and the reinforcement and preventing stress concentration. and local displacement can be prevented, and the rear 210 of the panel 200, that is, the left and right entrances 310 and 320 of the reinforcing material insertion hole 300, are pulled out in a rearward standing state and flexibly and gradually laid down on the reinforcing soil body, forming a strip shape. The rear end of the fiber reinforcement (100) is erected again in a C shape to form a passive resistance part. In addition to the frictional resistance between the soil and the reinforcement at the laid part, passive resistance is exerted at the rear end, making it possible to build a strong and stable retaining wall. .

The panel 200 according to this embodiment can freely construct both straight retaining walls as shown in FIGS. 8 to 13 and curved retaining walls as shown in FIGS. 14 to 16, and can be constructed in straight and curved shapes. This combined continuous retaining wall can also be built, so this will be explained.

Figure 14 shows a plan view of a retaining wall with a continuous curved section and a straight section. The uneven joint state between panels 200 adjacent to the left and right in the curved section is shown in FIG. The uneven bonding state between adjacent panels 200 is shown in FIG. 16.

First, in the curved section, as shown in FIG. 15, the left and right sides (220,230) of the panels 200 adjacent to each other are tapered to the inside of the rear side (210), and the tapered sides (220,230) have uneven joints ( Since 222,232) is formed, the left and right panels can be closely adhered without the phenomenon of opening at the front of the panel when constructing a protruding curved part, and the uneven joints (222,232) are closely adhered with almost no gaps, providing solid support. Because it exerts this effect, the phenomenon of panel pushing, tipping over, or gapping does not occur during the construction of the retaining wall as well as after the construction of the retaining wall.

In addition, in the straight section, as shown in FIG. 16, the left and right sides (220, 230) of the panels 200 adjacent to each other are tapered inward to the rear 210, and the tapered sides (220, 230) have uneven coupling portions. Since (222,232) is formed, the leading ends of the sides (220,230), that is, the left and right side edges of the front (240) of the panel (200), are in close contact, but the left and right side edges of the rear (210) of the panel (200) are spread out, creating an uneven coupling. Since a gap g is generated between the parts 222 and 232, the width becomes narrower toward the lower end and the upper part to prevent the coupling state and support force between the left and right panels 200 from being deteriorated due to the gap g. When the insert 400, which has a wedge-like shape whose width increases as the width increases, is inserted, the bonding and support between the panels 200 adjacent to each other on the left and right are strengthened. In this state, the backfill soil 500 is filled and compacted. After going through the process of laying the strip-shaped fiber reinforcement (100), it is possible to prevent the forward pushing or falling phenomenon of some panels that may occur during the construction process, so the panels can be built in multiple stages without using separate clamps or auxiliary supports. In addition, the insert 400 inserted between the uneven joints of the left and right panels can be dismantled and used repeatedly when constructing the next panel, so a retaining wall can be built without wasting subsidiary materials.

In this embodiment, the insert 400 for temporary fixation between the panels is preferably made of metal or synthetic resin to enable repeated use, and a separate handle or connection ring is provided to enable easy insertion, disassembly, and handling. Of course, you can also attach a string.

Figure 17 shows the state in which the above-described insert 400 is inserted between panels during the construction of a recessed type (see a in Figure 17), a straight type (see b in Figure 17), and a protruding type (see c in Figure 17) retaining walls, respectively. As shown, in the case of an indented retaining wall, the gap (g) between the left and right adjacent panels 200 is wide, so the wedge-shaped insert 400 is deeply inserted, and in the case of a straight retaining wall, the left and right adjacent panels ( Since the gap (g) between the 200) is relatively narrow compared to the recessed retaining wall, the insert 400 is inserted less deeply, and in the case of the protruding retaining wall, the gap (g) between the panels 200 adjacent to the left and right is Since there is little or only a slight opening, the left and right panels remain in close contact with each other even if the insertion depth of the insert (400) is not deep or the insert is not used, effectively preventing the forward pushing or falling phenomenon of some panels that may occur during the construction process. It can be done.

As described above, according to the panel according to this embodiment and the method of constructing a retaining wall using this panel, it is possible to minimize the weight of the panel, reduce material costs and manufacturing costs, improve productivity, and reduce logistics costs, as well as production and There is an advantage in that carbon dioxide emissions can be minimized during the transportation process, and straight and curved retaining walls with a strong structure can be quickly built using only a single type of panel without requiring additional materials.

100: Strip-shaped fiber reinforcement
200: panel
210: rear
220,230: side
222,232: Concavo-convex joint
240: front
242: Indented groove
250: upper surface
260: If you do
262: Stumbling block
300: Reinforcement insertion hole
310,320: Entrance
330: through passage
400: insert
500: Backfill soil (reinforced soil)
g: gap
M: middle part
S: Outer part
Z: basics

Claims (9)

In order to directly connect the strip-shaped fiber reinforcement 100 embedded in the reinforced soil 500 to the panel 200, the left and right entrances 310 and 320 of the reinforcement insertion hole 300, which has a through passage 330 on the inside, are located at the rear 210. As a panel (200) for the construction of an exposed reinforced soil retaining wall;
The thickness (T) of the middle part of the panel 200 between the entrances 310 and 320 on both sides is relatively thicker than the thickness (t) of the outer part of the panel 200 outside the entrances 310 and 320 on both sides,
The panel 200 has uneven coupling parts 222,232 formed on the left and right sides 220,230 for uneven coupling between panels adjacent to each other on the left and right. It is formed in a state tapered inward, allowing the construction of a straight retaining wall and a curved retaining wall with the left and right sides of the front 240 of the left and right adjacent panels 200 in contact with each other,
The uneven coupling portions 222 and 232 are formed at right angles toward the inside and outside of the tapered sides 220 and 230,
A locking protrusion 262 is formed on the rear side of the lower surface 260 of the panel 200 to prevent the upper panel from being pushed when the rear of the panel is assembled, and the locking protrusion 262 is located at the vertical lower part of the inlets 310 and 320. It is located,
A panel for a reinforced soil retaining wall, characterized in that an indented groove (242) is formed on the front (240) of the middle portion of the panel (200).
delete delete delete delete In claim 1,
A panel for a reinforced soil retaining wall, wherein the indented grooves 242 are formed on the upper and lower sides of the reinforcing material insertion hole 300 to prevent interference with the reinforcing material insertion hole 300.
In claim 1,
The indented groove 242 is formed to a depth corresponding to the front of the outer portion S, and the upper, lower, left, and right surfaces inside the indented groove 242 are tapered at a predetermined angle. A panel for a reinforced soil retaining wall, characterized in that it is formed of.
A method of constructing a retaining wall using the panel according to any one of claims 1, 6, and 7,
The panels, which are built in multiple stages up and down, are built in a stacked manner, and a row of strip-shaped fiber reinforcement is continuously inserted into the reinforcement insertion hole formed at the rear of the panel adjacent to the left and right, spread out on the reinforced soil and buried, and the uneven joints between the left and right panels are separated. A method of constructing a reinforced soil retaining wall panel, characterized in that the backfill soil is compacted with an insert inserted into the gap, and then separated and reused for the upper panel.
In claim 8,
The panels 200 are built one step at a time on the foundation Z, and the insert 400 is inserted into the gap g between the uneven joints 222 and 232 between the left and right adjacent panels 200 so that the left and right panels 200 are connected to each other. First, fill and compact the backfill soil 500 to the height of the reinforcing material insertion hole 300 of the panel 200 in a state in which it is tightly coupled without any clearance, and the reinforcing material is opened to the rear of the panel 200 adjacent to the left and right. A row of strip-shaped fiber reinforcement (100) is continuously inserted into the left and right entrances (310,320) of the insertion hole (300) and spread on the reinforced soil, and then secondly filled with backfill soil (500) up to the top of the panel (200) and compacted to form a strip-shaped fiber. A method of constructing a panel for a reinforced soil retaining wall, characterized in that the reinforcement material (100) is buried in the reinforced soil body.