JP6410672B2 - Anchor reinforced earth wall - Google Patents

Description

  The present invention relates to an anchor-reinforced earth wall that prevents the collapse of earth and sand.

Currently, there are the following three types of reinforced soil walls in Japan.
(1) Precast concrete (hereinafter referred to as “PCa”) wall material and a steel anchor are fastened with a reinforcing material, and the embedding material sandwiched between the wall material and the anchor is restrained and reinforced, thereby stabilizing the anchor. Anchor-reinforced earth wall construction method that uses the pull-out resistance due to the bearing resistance to exert the earth retaining effect (2) The PCa wall material is also used, and the earth retaining effect due to the pull-out resistance due to friction between the strip steel reinforcement and the embankment material (3) A method that uses the same PCa wall material and exhibits the earth retaining effect by pulling resistance due to the frictional force between the geotextile of the polymer material laid in a plane in the embankment and the embankment. (1 Patent Documents 1 and 2 are given as conventional examples of the anchor-reinforced earth wall construction method (the conventional construction method described below).

Japanese Patent No. 3177331 Utility Model Registration No. 2590931

Originally, the anchor-reinforced earth wall construction method is a stable earth retaining method with high seismic resistance and drainage, if construction management is performed based on correct knowledge.
However, since the anchor-reinforced earth wall construction method is a soil retaining method mainly composed of soil, the construction accuracy is easily affected by the weather and the embankment material soil quality. For this reason, even contractors who have knowledge about embankment management do not perform the management as prescribed, such as when working in rainy weather, and there are many sites where the orderer's guidance is not perfect, and overlooked construction defects etc. Cheap. In such a field, it may be damaged during a major disaster (heavy rain, earthquake).

  Moreover, the anchor area with respect to the wall material of a conventional construction method is about 23%. For this reason, even when construction management is performed based on correct knowledge, abnormalities such as abnormal rainfall or strong earthquakes may cause deformations such as sinking, sliding, slipping, falling off, and falling of wall materials. From the examples of deformation, the area of the anchor relative to the wall material is small, so there is a current situation in which it should be determined that the embankment has lost its margin and the deformation has occurred. Has never been elucidated. In the conventional construction method, if the area of the anchor is mentioned from the current state of publishing the public manual, the current construction method will be denied.

  If the area of the anchor is the same area as the wall material, that is, if the same wall material is used instead of the anchor and the wall materials are tension-constrained with the reinforcing material, it is very stable as a reinforced soil wall, In the case of a reinforced earth wall that is often built on the slope of the hillside, there is no adhesion or unity with the natural ground, and a slip surface occurs between the wall material instead of the anchor and the natural ground. Such construction is not performed. There are many examples of such construction in urban areas that are not mountainous.

  The reinforced earth wall has a stable structure that retains flexibility, but the strength of the embankment material may sometimes decrease due to unexpected loads or abnormal increases in infiltration water due to rainwater. In such a case, with the conventional construction method in which the area of the anchor is around 23% of the wall material area, the embedding material is easily restrained even if the degree of adhesion between the embankment material and the ground is maintained, and the wall material is kept vertical. It is difficult to hold it stably. In particular, when there is an oversight such as a construction failure, the wall material is liable to be deformed, such as subsidence or sag, and the stability is impaired.

  Therefore, an object of the present invention is to reduce the deformation of the reinforced soil wall due to poor construction from past disaster cases. Specifically, the restraint strength of the embankment material is increased, and the entire embankment material is compressed and settled. It is intended to prevent and reduce deformations such as sinking, sliding, slipping, falling off, and falling of wall materials.

Therefore, the anchor-reinforced earth wall according to the present invention alternately stacks a plurality of PCa-made wall surfaces and PCa-made wall surfaces without being fastened to each other. Assemble vertically with the latching shape part formed on the wall surface material to be hooked to the latching shape part formed on the upper and lower wall surface material so that the wall surface material is not displaced to the front side. Wall,
A plurality of anchors disposed on the back side of the wall surface, wherein the total projected area of the front surface of the anchor is 30 to 50% of the area of the wall surface;
Reinforcing material in which only the wall surface material to be locked and the anchor are bonded (the wall surface material and the anchor are not bonded),
It consists of the embankment material filled so that an anchor and a reinforcing material might be buried in the back side of a wall surface.

The hooked wall surface material and the hooked wall surface material need only be alternately stacked and have a hooked shape portion and a hook shape portion, respectively, so that the shape can be simplified.
The hooked wall surface material and the anchor are in tension with each other by sandwiching and embedding the embankment material.
The hanging wall material is sandwiched between the upper and lower wall surfaces and the hanging shape part is hooked on the upper and lower hanging shape parts so as not to be displaced to the front side. (Pressure and seismic force) and disperse to the wall surface.
The mechanism of the wall surface material to be latched and the wall surface material to be latched can be likened to the mechanism of the groove lid fitted to the U-shaped side groove of the road and its lid receiving part. That is, the wall surface material is equivalent to the groove lid, the wall surface material to be latched is equivalent to the lid receiving portion of the U-shaped side groove, and the U-shaped side groove and the groove lid are supported on the anchor in the same manner as supporting the wheel load of the vehicle. The tightly attached wall surface material and the wall surface material hooked on it support the load (earth pressure and seismic force) from the back.

  The total front projected area of the anchor is 30% or more of the wall surface area because the anchor is more restrained by the embankment material sandwiched between the wall material and the entire embankment material is less likely to compress and sink. It is possible to realize a dirt wall, and even if there is an abnormal rain or strong earthquake, it is difficult for wall materials to be deformed, subsidized, toppled, slid, etc. On the other hand, it should be 50% or less of the wall area This is because, if it exceeds 50%, the adhesion and integrity between the natural ground and the embankment material are gradually lost.

  According to the present invention, first, since the shape of the wall surface material to be hung and the wall surface material to be hung can be simplified in shape, they can be manufactured by a normal cast concrete manufacturing method and an immediate demolding concrete manufacturing method, and the construction cost can be reduced. Next, wall surfaces of various heights from a low wall height to a high wall height can be easily constructed by alternately stacking a required number of wall surface materials and wall surface materials. Further, since it is not necessary to use a metal fitting that tightly connects the wall surface material to be hung and the wall surface material to be hung, the work period can be shortened, and management such as repair of metal corrosion after the work is not required. Furthermore, by not using the metal fittings, the wall surface can be easily disassembled and reused after being used for a certain period. And, the reinforced earth wall that has been constructed has high restraint strength of the embankment material, and the whole embankment material is hard to compress and sink, and even if there is abnormal rain or strong earthquake, the wall material will sink, slide, slip, fall off, fall, etc. Is unlikely to occur.

It is sectional drawing of the anchor reinforcement earth wall which concerns on the Example of this invention. (A) is the perspective view which looked at the anchor reinforcement earth wall from the front (a banking material is omitted for convenience), and (b) is the perspective view which saw it from the back (a banking material and an anchor are omitted for convenience). (A) used for the anchor reinforced earth wall, (b) is a middle wall surface material, (c) is a wall surface material, (d) is a wall surface material for foundation, (e) It is the perspective view which looked at the anchor from the front and the back, respectively. It is sectional drawing which shows the example of a change of the wall surface of the anchor reinforcement earth wall. It is sectional drawing which shows the example of a change of the wall surface of the anchor reinforcement earth wall. It is a perspective view which shows the example of a change of the anchor of the anchor reinforcement earth wall.

1. Wall surface (wall surface material and wall surface material)
The height of the wall surface is not particularly limited, but about 1 to 10 m is appropriate. The left and right length of the wall surface is not particularly limited, but 3 m or more is appropriate.

  The hooked wall surface material is a block in which hooked shape portions extending in the left and right directions are integrally formed on the lower surface and the upper surface of a square bar extending left and right, respectively. In addition, a mode in which the latching shape portions extending in the left and right directions are integrally formed can be exemplified. However, it is preferable that only the foundation wall surface material to be placed at the bottom is a block in which a latching shape portion extending left and right is integrally formed only on the upper surface of a square bar extending left and right.

Examples of the hooked shape portion and the hooked shape portion include the following modes.
(A) A mode in which the hooked shape portion is a notch formed at the rear end portion of the hooked wall surface material, and the hook shape portion is a protrusion formed at the rear end portion of the hooked wall surface material.
As the cross-sectional shape of the notch and the ridge, a cross-sectional quadrangle or a cross-sectional arc shape having a relationship between the concave and convex to be fitted can be exemplified.

(A) A mode in which the hooked shape portion is a protrusion formed in the middle portion in the front-rear direction of the wall surface material to be hung, and the hook shape portion is a groove formed in the middle portion in the front-rear direction of the wall surface material. .
Examples of the cross-sectional shape of the ridge and the groove include a quadrangular cross-section, a cross-sectional triangle, or a cross-sectional arc shape having a relationship between the concave and convex to be fitted.

(C) The hook-shaped part is a groove formed in the middle part in the front-rear direction of the hooked wall surface material, and the hook-shaped part is a ridge formed in the middle part in the front-rear direction of the wall surface material .
The cross-sectional shape of the groove and the ridges, the relationship between the concave and convex fitting, a square section, the cross-sectional triangle or a circular arc cross sectional shape can be exemplified.

  Depending on the left and right length of the wall surface, the plurality of wall surface materials are arranged so as to be connected to the left and right without being fastened to each other, and the plurality of wall materials for holding are arranged so as to be connected to the left and right without being fastened to each other. The embodiment is preferred. In this case, the hanging wall material is stacked so as to straddle between the continuous wall surface material and the wall surface material to be hung, and is hung so as to straddle between the continuous wall surface material and the wall surface material to be hung. A mode in which wall materials are stacked is preferable.

2. Anchor The material of the anchor is not particularly limited, and examples include precast concrete and metal. As the metal, steel can be exemplified, and stainless steel is preferable.
The shape of the anchor is not particularly limited, but an upright plate shape or a shape obtained by partially deforming the plate shape is preferable so that the front projection area is increased with respect to the weight.

3. Although it does not specifically limit as a material of a reinforcing material, A metal can be illustrated. As the metal, steel can be exemplified, and stainless steel is preferable.
As a structure of the reinforcing material, the first horizontal reinforcing material embedded in the wall surface material to be hooked, the third horizontal reinforcing material embedded in the anchor, the second horizontal reinforcing material extending between these, and the first horizontal reinforcing material A first turn buckle for connecting the reinforcing member and the second horizontal reinforcing member using screws formed thereon, and a screw formed on the second horizontal reinforcing member and the third horizontal reinforcing member using them. And a second turnbuckle connected to each other.

4). Embankment Material The embankment material is not particularly limited, and may be soil cut out at the site or soil transported from another place to the site.

The anchor reinforced soil walls of the embodiment shown in FIGS. 1 to 3 are vertically arranged with a plurality of wall surfaces 2 and 3, a plurality of wall surfaces 4, and an uppermost cap 5 made of PCa. The assembled wall 1, a plurality of PCa anchors 10 arranged on the back side of the wall 1, a reinforcing member 20 that tightly connects the anchored wall materials 2 and 3 and the anchor 10, and the back side of the wall 1 It consists of the embankment material 30 filled so that the anchor 10 and the reinforcing material 20 may be filled. The latch wall surface material 4 and the anchor 10 are not tightly coupled.
In addition, the dimension of each part of a present Example given below is an illustration and can be changed suitably. For example, it is preferable that the change ranges of the wall materials 2, 3, and 4 are a left-right length of 750 to 2000 mm, an overall height of 200 to 1000 mm, and a front and rear thickness of 150 to 300 mm.

There are two types of the wall surface materials 2 and 3 to be hung up: a basic wall surface material 2 to be placed at the bottom and an intermediate wall surface material 3 in the middle.
As shown in FIG. 3 (d), the base wall surface material 2 of the foundation is integrally formed with a hook shape portion 6, which is a cutout having a rectangular cross section extending left and right, at the rear end of the upper surface of a square bar extending left and right. It is a formed block. The left and right lengths of the foundation wall surface material 2 are 1500 mm, the total height is 375 mm, and the front and rear thickness is 190 mm. The height of the hooked shape portion 6 is 70 mm, and the front and rear depth is 95 mm.

  As shown in FIG. 3 (b), the intermediate wall surface material 3 is a cover having a rectangular cross section extending to the left and right at the rear end of the lower surface and the rear end of the upper surface of the square bar that extends to the left and right. This is a block in which the latching shape portion 6 is integrally formed. The middle wall surface material 3 has a left and right length of 1500 mm, an overall height of 375 mm, a front and rear thickness of 190 mm, a height of the hooked shape portion 6 of 70 mm, and a front and rear depth of 95 mm.

  An insert 21a of the first horizontal reinforcing member 21 of the reinforcing member 20 is embedded in the wall surfaces 2 and 3 to be hooked at the time of precasting, and the first horizontal reinforcing member 21 protrudes rearward from the central portion of the back surface.

  As shown in FIG. 3 (c), the latch wall surface material 4 is a latch-shaped portion that is a protruding strip having a rectangular cross section extending left and right at the rear end portion of the lower surface and the rear end portion of the upper surface of the horizontally long square bar. Reference numeral 7 denotes an integrally formed block. The left and right lengths of the wall surface material 4 are 1500 mm, the total height is 390 mm, and the front and rear thickness is 190 mm. The height of the latching shape portion 7 is 70 mm, and the front and rear depth is 95 mm.

  As shown in FIG. 3 (a), the shaded wood 5 is a block in which a latching shape portion 7, which is a protruding strip having a rectangular cross section extending left and right, is integrally formed at the rear end portion of the lower surface of a horizontally long square bar. . The right and left length of the cap lumber 5 is 1500 mm, the total height is 320 mm, and the front and rear thickness is 190 mm. The height of the latching shape portion 7 is 70 mm, and the front and rear depth is 95 mm.

  Depending on the left and right lengths of the wall surface 1, the plurality of foundation wall surfaces 2 are arranged so as to be connected to the left and right without being fastened to each other, and the plurality of intermediate wall surfaces 3 are also fastened to each other. Are arranged so as to be connected to the left and right without being connected, the plurality of retaining wall materials 4 are also arranged so as to be connected to the left and right without being fastened to each other, and the shade wood 5 is also arranged so as to be connected to the left and right without being fastened to each other. Has been. Further, the hanging wall surface material 4 is stacked so as to straddle between the continuous wall surface materials 2 and 3 and the wall surface materials 2 and 3, and the wall surfaces 4 and 4 are connected to each other. The wall surfaces 3 to be latched are stacked so as to straddle them.

  The wall surface 1 (retaining wall) stacks the wall surface materials 2 and 3 and the wall surface material 4 alternately without being fastened to each other, and the wall surface material 4 is attached to the wall surface materials 2 and 3 to be hung. On the other hand, the latching shape portion 7 of the latching wall surface material 4 is engaged with the latching shape portions 6 of the upper and lower latching wall surface materials 2 and 3 so as not to be displaced to the front side. The hooked lumber 5 is placed on the upper wall surface material 4 so as to be alternately stacked without being fastened to each other, and the hooked shape portion of the cap wood 5 is prevented from being displaced to the front side with respect to the wall surface material 3 to be hung. 7 is fitted to the latching shape portion 6 of the latched wall surface material 3 and latched, and assembled vertically.

  The anchor 10 has a plate-like shape that stands up so that the projected area on the front surface increases with respect to the weight. An insert 23 a of a third horizontal reinforcing member 23 of the reinforcing member 20 is embedded in the anchor 10 at the time of precasting, and the third horizontal reinforcing member 23 protrudes forward from the central portion of the boss portion 11. The anchor 10 has a left and right length of 800 mm, a height of 400 mm, a front projection area of 0.32 m @ 2 and a front and rear thickness of 120 mm. The total of the projected front areas of the plurality of anchors 10 is about 34.2% of the area of the wall surface 1.

  The reinforcing member 20 includes a rod-shaped first horizontal reinforcing member 21 (with an insert 21a) embedded in the hooked wall surface materials 2 and 3, and a rod-shaped third horizontal reinforcing member 23 (insert) embedded in the anchor 10. 21a), a rod-shaped second horizontal reinforcing member 22 extending between them, and a first turn for connecting the first horizontal reinforcing member 21 and the second horizontal reinforcing member 22 using screws formed thereon It comprises a buckle 24, a second turnbuckle 25 that connects the second horizontal reinforcing member 22 and the third horizontal reinforcing member 23 to each other by using screws formed on them, and these are steel materials ( It is preferably made of stainless steel.

The anchor reinforcement earth wall of a present Example can be constructed | assembled with the following method.
(1) A crushed stone is laid on the ground in front of the slope 32 constituted by the back soil 31 (not shown), and the discarded concrete 33 is placed.
(2) The foundation wall surface material 2 is placed on the abandoned concrete 33, and is located on the back side of the wall surface material 2 to be hung (specifically, just behind the center of the back surface of the wall surface material 2). The anchor 10 is placed on the ground before the slope 32, and the fixed wall surface material 2 of the foundation and the anchor 10 are fastened with the reinforcing material 20.
(3) The hanging wall material 4 is stacked on the foundation wall surface material 2, and the anchor 10 and the reinforcing material 20 are placed on the back side up to the middle height of the foundation wall surface material 2 and the wall surface material 4. Filling and filling the embankment material 30 to fill. The anchor 10 tightly coupled to the retaining wall surface material 4 is not provided.

(4) An intermediate wall surface material 3 is placed on the wall surface material 4, and the back surface side of the wall surface material 3 (in detail, directly behind the center of the back surface of the wall surface material 3. The anchor 10 is mounted on the embankment material 30 in front of the slope 32 (separated), and the intermediate wall surface wall material 3 and the anchor 10 are fastened by the reinforcing material 20.
(5) The latching wall surface material 4 is stacked on the intermediate wall surface wall material 3, and the anchor 10 and the reinforcing material 20 are placed on the back side up to the middle height of the intermediate wall surface wall material 3 and the wall surface wall material 4. Filling and filling the embankment material 30 to fill. The anchor 10 tightly coupled to the retaining wall surface material 4 is not provided.

(6) The above (4) and (5) are repeated as many times as necessary, and the process ends at (4).
(7) The shaded wood 5 is stacked on the uppermost middle wall surface material 3 and the anchor 10 and the reinforcing material 20 are placed on the back side up to the middle height of the middle wall surface material 3 and the shaded wood 5. Filling and filling the embankment material 30 to fill.

According to the anchor reinforced earth wall of the present embodiment configured as described above, the following operational effects can be obtained.
First, since the wall surface materials 2 and 3 and the wall surface material 4 can be simplified in shape, they can be manufactured by a normal pouring concrete manufacturing method and an immediate demolding concrete manufacturing method, and the construction cost can be reduced.
Next, the wall surface 1 having various heights from the low wall height to the high wall height can be easily constructed by alternately stacking the required number of the wall surface materials 2 and 3 and the wall surface material 4. Further, since it is not necessary to use a metal fitting for fastening the wall surface materials 2 and 3 and the wall surface material 4 to each other, the construction period can be shortened, and management such as repair of metal corrosion after the construction is not required. Furthermore, by not using the metal fittings, the wall surface 1 can be easily disassembled and reused after being used for a certain period.
And the reinforced earth wall that has been constructed has a high restraint strength of the embankment material 30, and the embankment material 30 as a whole is hard to compress and sink, and even if there is an abnormal rainfall or strong earthquake, the wall material sinks, slides, slips, falls, Deformations such as falls are unlikely to occur.

In addition, this invention is not limited to the said Example, In the range which does not deviate from the meaning of this invention, it can change suitably and can be embodied.
(1) As shown in FIGS. 4 and 5, the shapes of the hooked shape portion 6 and the hooked shape portion 7 should be changed as appropriate.
FIG. 4A shows an example in which the hooked shape portion 6 of the embodiment is changed to a trapezoidal cutaway section and the hooked shape portion 7 is changed to a trapezoidal protrusion shape.
FIG. 4B is an example in which the hooked shape portion 6 of the embodiment is changed to a notch having an arcuate cross section, and the hooking shape portion 7 is changed to a convex strip having an arcuate cross section.
FIG. 4 (c) shows the hook-shaped portion 6 as a trapezoidal ridge having a trapezoidal cross section formed on the upper surface of the hooked wall surface material 2 and the front and rear intermediate portions of the upper and lower surfaces of the wall surface material 3 to be hooked. This is an example in which the shape portion 7 is a trapezoidal groove formed in the middle portion in the front-rear direction of the upper surface and the lower surface of the retaining wall surface material 4.
FIG. 4D is an example in which the hooked shape portion 6 and the hooked shape portion 7 of FIG.
FIG. 4E shows an example in which the hooked shape portion 6 and the hooked shape portion 7 of FIG.
FIG. 5A shows an example in which the hooked shape portion 6 and the hooked shape portion 7 of FIG.
FIG. 5B shows a trapezoidal groove having a trapezoidal cross section formed on the upper surface of the wall surface material 2 to be latched and the front and rear intermediate portions of the upper and lower surfaces of the wall surface material 3 to be latched. This is an example in which the section 7 is formed as a trapezoid with a trapezoidal cross section formed in the middle part in the front-rear direction of the upper surface and the lower surface of the retaining wall surface material 4.
FIG. 5C is an example in which the hooked shape portion 6 and the hooked shape portion 7 of FIG.
FIG.5 (d) is the example which changed the to-be-shaped part 6 and the latching shape part 7 of FIG.5 (b) into the cross-sectional triangle.
FIG.5 (e) is the example which changed the to-be-latched shape part 6 and the latching shape part 7 of FIG.5 (b) into the cross-sectional arc shape.

(2) As shown in FIGS. 6A to 6E, the shape of the anchor 10 should be changed as appropriate.
(A) is based on an upright plate shape, and further has a boss portion 11 projecting from the center in the left-right direction of the front surface, forming recesses 12 on the left and right of the boss portion on the front surface, This is an example of a bent shape. The recess 12 can be expected to act to restrain the embankment material more easily.
(B) is an example in which the left and right plate ends 13 are bent to the front.
(C) is an example in which the plate shape is formed in a concave shape in plan view.
(D) is an example in which the plate-like shape is a front-like convex shape in plan view.
(E) is an example in which the plate-shaped upper and lower plate ends 14 are bent forward.

DESCRIPTION OF SYMBOLS 1 Wall surface 2 Base wall surface material 3 Middle wall surface wall material 4 Wall surface material 5 Wall material 6 Coated wood 6 Hook shape part 7 Latch shape part 10 Anchor 20 Reinforcement material 21 1st horizontal reinforcement material 22 1st 2 horizontal reinforcing material 23 3rd horizontal reinforcing material 24 1st turn buckle 25 2nd turn buckle 30 Embankment material

Claims (12)

A plurality of precast concrete wall surfaces (2, 3) and a plurality of precast concrete wall surfaces (4) are stacked alternately without being fastened to each other, and the wall surfaces (4) The upper and lower hooked wall surface materials (2, 3) are formed on the hooking wall portions (4, 3) so that the hooking wall portions (2, 3) are not displaced to the front side. Wall surface (1) vertically assembled by being hooked to the hooked shape portion (6) formed in
A plurality of anchors (10) disposed on the back side of the wall surface (1), wherein the total projected area of the front surface of the anchor is 30 to 50% of the area of the wall surface;
A reinforcing member (20) in which only the hooked wall surface material (2, 3) and the anchor (10) are tightly coupled;
An anchor-reinforced earth wall comprising an embedding material (30) filled so as to embed an anchor (10) and a reinforcing material (20) on the back side of the wall surface (1). The hooked wall surface material (3) is a block in which hooked shape portions (6) extending in the left and right directions are integrally formed on the lower surface and the upper surface of a square bar extending in the left and right directions,
The anchor reinforcing earth wall according to claim 1, wherein the latch wall surface material (4) is a block in which a latch shape portion (7) extending left and right is integrally formed on a lower surface and an upper surface of a square bar extending left and right.   Only the bottom wall surface material (2) of the foundation placed at the bottom is a block in which a hook shape portion (6) extending left and right is integrally formed only on the upper surface of a square bar extending left and right. 2. An anchor-reinforced earth wall.   The latching shape portion (6) is a notch formed in the rear end portion of the latching wall surface material (3), and the latching shape portion (7) is formed in the rear end portion of the latching wall surface material (4). The anchor-reinforced earth wall according to claim 2 or 3, wherein the anchor-reinforced earth wall is a projected ridge.   The anchor-reinforced earth wall according to claim 4, wherein the notch and the ridge have a quadrangular section or a circular arc section.   The latching shape portion (6) is a protrusion formed in the middle portion in the front-rear direction of the wall surface material (3) to be latched, and the latching shape portion (7) is the middle in the front-rear direction of the wall surface material (4). The anchor-reinforced earth wall according to claim 2 or 3, which is a groove formed in the portion.   7. The anchor-reinforced earth wall according to claim 6, wherein the ridges and the grooves have a quadrangular section, a triangular section, or a circular arc section.   The latching shape portion (6) is a groove formed in the middle portion in the front-rear direction of the wall surface material (3) to be latched, and the latching shape portion (7) is a middle portion in the front-rear direction of the wall surface material (4). The anchor-reinforced earth wall according to claim 2 or 3, wherein the anchor-reinforced earth wall is a projecting ridge formed on the surface. Grooves and ridges, a square section, sectional triangle or a circular arc cross sectional shape according to claim 8 anchor reinforced soil walls according.   According to the left and right lengths of the wall surface (1), the plurality of wall surface materials (2, 3) are arranged so as to be connected to the left and right without being bonded to each other, and the plurality of wall surface materials (4) are bonded to each other. The anchor-reinforced earth wall according to any one of claims 1 to 9, wherein the anchor-reinforced earth wall is arranged so as to be continuous from side to side without being done.   A hanging wall surface material (4) is stacked so as to straddle between the continuous wall surface material (2, 3) and the wall surface material (2, 3). The anchor reinforced earth wall according to claim 10, wherein the wall surface material (3) is stacked so as to straddle the wall surface material (4).   The anchor (10) is an anchor-reinforced earth wall according to any one of claims 1 to 11, wherein the anchor (10) is an upright plate shape made of precast concrete or a shape obtained by partially deforming the plate shape. .

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