JP3294715B2 - Block structure for retaining wall and method for forming retaining wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall block structure for constructing a retaining wall of a road, a residential area, a park, or the like, a revetment retaining wall for a river, and the like, and a retaining structure using the retaining wall block structure. The present invention relates to a wall forming method.

[0002]

2. Description of the Related Art Heretofore, as this type of retaining wall, there has been used a block having a horizontal cross section having a rectangular plate-shaped mirror portion and a pair of rectangular plate-shaped notches extending from the rear surface of the mirror portion. It is known (for example, see Japanese Utility Model Application Laid-Open No. 61-26747). And when masonrying this block,
After arranging the horizontal reinforcing bar and the vertical reinforcing bar on the back of the retaining part, and arranging the suspension reinforcing bar between the vertical reinforcing bar and the block, the net made of iron wire etc. is locked on the back of the retaining material, and the back lining stone on the back side And the backing concrete and the cavity surrounded by the backing material and the net are filled with backing concrete.

[0003]

SUMMARY OF THE INVENTION In the construction of the retaining wall described in the prior art, it is necessary to arrange the reinforcing bars in a complicated manner as described above, and it takes time and effort to assemble. There is a problem that it takes time for construction and the construction cost is high.

[0004] The present invention has been made in view of the above background, and an object of the present invention is to provide a retaining wall block structure and a retaining wall block structure capable of shortening construction time and achieving economical efficiency. An object of the present invention is to provide a method for forming a retaining wall using a body.

[0005]

Means for Solving the Problems In order to achieve the above object, a block structure for a retaining wall of the present invention comprises a rectangular plate-shaped mirror portion and a pair of rectangular plate-shaped stay portions extending from the back surface of the mirror portion. and a bottomless block body horizontal section Π shape with integrally with, in a direction perpendicular to該控portion in the vicinity of the rear end of the recessed portions
A block structure for a retaining wall, which is used in combination with a head plate having a pair of cut grooves which can be inserted into insertion grooves provided therethrough and a dam plate having substantially the same height , wherein the block body or an adjacent block body is used. as across the fitting groove of the copy unit in the block body to
A retaining wall block structure, characterized in that the Dokomi portion space communicating with the vertical direction caused by closing the back side of the block body by fitting the weir plate to.

[0006] Further, there is provided a retaining wall block structure characterized in that one or more wall holes of an arbitrary shape are provided in a mirror portion of the block main body .

[0007] When forming a retaining wall having a curve with a small curvature, it is preferable to use a weir plate having a protruding portion bent. In addition, when the back surface of the retaining wall has a function of draining water or the like, a weir plate provided with one or a plurality of holes of an arbitrary shape may be used. In addition, a block body having one or more holes of an arbitrary shape provided in the mirror portion and / or the holding portion is used at a predetermined position, and an appropriate body portion is provided with one or more of soil, stone, concrete, or the like. What is necessary is just to fill in combining the said material.

Furthermore, the bottomless block body horizontal section Π shape with integrally the copy portions of the pair of rectangular plate extending from the back of the rectangular plate-shaped mirror portion and the mirror portion, the rear end of the recessed portions Near
The end plate is provided with a pair of cutout grooves that can be inserted into insertion grooves provided to penetrate in a direction perpendicular to the retaining portion, and is substantially flush with the end plate
A block structure for a retaining wall used in combination with a weir plate, firstly laying a required number of the bottomless block main bodies in a required number thereof, and thereafter, in a fitting groove of a retaining portion in the block main body.
The block main body or the adjacent block main bodies are connected to each other by the weir plate and the back side of the block main body is closed to form a body portion. It is an object of the present invention to provide a method for forming a retaining wall, wherein any one of a plurality of materials, such as soil, stone and concrete, or a plurality of the above-mentioned materials is combined and sealed in a body portion, and the above is sequentially repeated and laid upward.

In this case, when forming a retaining wall having a curve with a small curvature, it is preferable to use a weir plate having a protruding portion bent. In addition, when the back surface of the retaining wall has a function of draining water or the like, a weir plate provided with one or a plurality of holes of an arbitrary shape may be used.

Further, a block body having one or a plurality of holes of an arbitrary shape provided in the mirror portion and / or the holding portion is used at a predetermined location, and an appropriate body portion is made of any one of soil, stone and concrete. Another object of the present invention is to provide a method for forming a retaining wall, comprising combining and enclosing a plurality of the above-mentioned materials, and sequentially repeating the above and masonry upward.

[0011]

In the retaining wall block structure of the present invention having the above-described structure, a block portion is formed by the block main body or the adjacent block main body and the weir plate, and the soil, stone, concrete, or the like is sealed therein. When stacked, the weight of the retaining wall block structure can be increased.
In addition, the weir plate serves to connect the adjacent block main bodies, and the hollow portion is formed as described above, where soil, stone, concrete, or the like is sealed, so that the block is held together with the connection at the time of stacking. The wall is completed.

[0012]

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 to 5 show a first embodiment of a retaining wall block structure according to the present invention and a retaining wall forming method using the retaining wall block structure. FIGS. FIGS. 4 and 5 are sectional views of the formed retaining wall at different positions.

In the block structure for a retaining wall of the present embodiment, as shown in FIG.
A block body 10 having a pair of rectangular plate-shaped recesses 12 extending from the rear surface of the block, and a pair of cuts which can be inserted into fitting grooves 13 provided near the rear end of each recess 12. It is used in combination with a weir plate 20 having a groove 21.

First, as shown in FIGS. 1 and 2, a required number of block bodies 10 are laid horizontally, and a weir plate 20 is fitted into a fitting groove 13 of a retaining portion 12 of the block body 10 so that a back surface of the block body 10 is formed. The side is closed to form the barrel portion A. The weir plate 20 can be fitted over the fitting groove 13 of the retaining portion 12 of the adjacent block body 10. Here, the projecting portions 22 on both sides of the weir plate 20 are provided with tapered surfaces so as to face each other, so that even if there is some deviation, the gap between the adjacent weir plates 20 can be reduced. Also, if the fitting groove 13 of the retaining portion 12 is provided so as to have an appropriate margin with respect to the cut groove 21 of the weir plate 20, the weir plate 20 can be fitted even if the block body 10 is slightly bent. it can. Further, in this embodiment, a projecting portion 12a is provided at the rear end of the holding portion 12, and both inner sides are tapered. The overhang portion 12a is not always necessary, but if it is provided, it is possible to stabilize the dam plate 20 and to increase the margin of the cut groove 21. In addition, if a protrusion 12b as shown in the drawing is provided at the lower portion of the retaining portion 12, forward swing and displacement are prevented, and the fitting state of the dam plate 20 can be stabilized. The projections 12b are also provided as necessary.

As shown in FIG. 3, soil, stone R and concrete C (including rebar S if necessary) are enclosed in the body portion A formed by the block body 10 and the weir plate 20, and this is repeated in sequence. Masonry upwards to form a retaining wall. In this case, in the present embodiment, the upper part of the lower weir plate 20 in the lower stage slightly protrudes from the lower part 12 of the block body 10, and the notch groove 14 provided in the lower part of the lower part 12 is So that it fits in the upper block body 10
The positioning of the front and rear and the prevention of misalignment are performed by stacking. In this masonry, the mirror portions 11 of the block main body 10 may be masonry so as to be in a staggered shape as shown in the drawing, or may be potato masonry. When a stone R is to be put into the barrel portion A, a weir plate 20 having a hole 20a as shown is used to drain the back of the retaining wall. Further, when the concrete C is poured into the body portion A, it is not necessary to provide the hole 20a in the dam plate 20, but if it is provided, the size is set so that the concrete C does not flow out. The hole 20a is not required when the backing stone cross section behind the retaining wall is large or when there is little water from the mountain.

The height of the formed retaining wall is generally about 1 to 20 m. When the height of the retaining wall is 3 m or less, it is economical to insert a stone R (crucifix) into the trunk portion A. When the retaining wall height is 3 to 5 m, the structural safety can be maintained by putting concrete C and stone R in the trunk portion A. When the retaining wall height is 5 to 10 m, concrete C and reinforcing steel S are preferably inserted into the body portion A so that the structure can withstand an earthquake. In addition, when the retaining wall height exceeds 10 m, it is preferable to enhance the integration with the ground by adopting a known anchor method. According to the retaining wall block structure of the present invention, either a lean retaining wall or an upright retaining wall can be formed.

FIGS. 6 to 9 show a second embodiment of the retaining wall block structure according to the present invention and a retaining wall forming method using the retaining wall block structure. FIGS. 6 and 7 show FIGS. 8 and 9 are cross-sectional views of the formed retaining wall at different positions.

The retaining wall formed in the first embodiment is shown in FIG.
And as shown in FIG. 5, the body A is filled with soil, stone R, concrete C, or the like to make the retaining wall itself heavy and lean against the mountain side to resist earth pressure and seismic force. But
In the case of the present embodiment, the retaining wall is formed upright and the site is effectively used, and the retaining wall itself does not need to be heavy, and the earth pressure or the concrete C and the reinforcing bar S filled in the body A are used. They try to resist the earthquake.

In this embodiment, as shown in FIG.
A block body 1 having a horizontal cross section similar to that of the embodiment 1
0 and the weir plate 20 are used in combination. And FIG.
As shown in Fig. 7, when only one of the body portions is filled with the concrete C and the reinforcing bar S in consideration of economy, it is preferable to use a weir plate 20 in which the projecting portions on both sides are reduced as shown in the figure.
In addition, the stones R may be inserted into other body portions by a predetermined thickness if necessary. If there is a lot of spring water in the ground, the stone R may be put in the body by using a weir plate 20 extending on both sides as in the first embodiment.

When the block main body 10 and the dam plate 20 are stacked upward, the block main body 10 whose lengths of the retaining portions 12 are successively shortened is piled up, and as shown in FIG. 8 and FIG. Make steps. If the retaining wall is too high to withstand the earth pressure and the seismic force, it is advisable to put concrete C and reinforcing bars S in all of the body sections. At this time,
The drainage stone R is provided behind the barrel portion in a required thickness partially or over the entire width.

FIG. 10 is a perspective view showing a block body and a weir plate used in a third embodiment of a retaining wall block structure and a retaining wall forming method using the retaining wall block structure according to the present invention. .

The block body 10 used in this embodiment
The weir plate 20 has substantially the same configuration as that of the first embodiment.
One or more of a are provided. Then, the appropriate barrel portion A
The retaining wall formed by putting stones in it can be used as a revetment retaining wall with fish nests. In this case, if necessary, an appropriate hole 12C may be formed in the retaining portion 12 of the block body 10 so that the body portions A are connected to each other. In addition,
The fish nest may be provided below the high water level line of a river or the like. Further, when soil is put in all the trunk portions A, it can be used for greening road retaining walls and the like.

FIG. 11 is a plan view showing a combined state of a block body and a weir plate for explaining the fourth embodiment.
2 is a perspective view showing a weir plate used in this embodiment.

The weir plate 20 used in this embodiment has a shape in which the cut groove 21 is enlarged and the projecting portions 22 on both sides are bent in opposite directions at an appropriate angle. Further, in the present embodiment, the retaining portion 12 in the block body 10 is provided.
The insertion groove 13 is also large, and the weir plate 20 is
Into the fitting groove 13 with a margin. Thereby, even if the block main body 10 is installed in a state where the adjacent mirror portions 11 are slightly shifted from the same plane,
The displacement is absorbed by the protruding portion 22 of the adjacent weir plate 20, and the weir plate 20 is inserted into the fitting groove 13 of the retaining portion 12 in each block body 10, and the back side of the block body 10 is closed. The barrel portion A can be formed. Therefore, according to this embodiment, it is possible to form a retaining wall having a curve with a small curvature. The retaining wall formed in this embodiment can of course be applied to a seawall retaining wall having a fish nest as in the third embodiment or a green retaining road retaining wall.

[0026]

Since the present invention is configured as described above, the following effects can be obtained.

A body portion is formed by the block body and the weir plate, and a soil, stone, concrete or the like is sealed in the body portion to form a retaining wall in a short time, and the weight of the retaining wall block structure is reduced. More economical retaining walls.

By using a weir plate having a protruding portion bent, it becomes possible to form a retaining wall having a small curvature.

By using a block body provided with a hole of an arbitrary shape in the mirror portion and / or the holding portion, it is possible to form a revetment retaining wall having a fish nest or a greening retaining wall such as a road.

[Brief description of the drawings]

FIG. 1 is a perspective view for explaining a procedure for assembling a retaining wall block structure according to a first embodiment.

FIG. 2 is a plan view showing a combined state of a block body and a weir plate.

FIG. 3 is a perspective view showing a state where a retaining wall is formed partway.

FIG. 4 is a sectional view of the formed retaining wall.

FIG. 5 is a cross-sectional view at a position different from FIG.

FIG. 6 is a perspective view for explaining a procedure of assembling the retaining wall block structure according to the second embodiment.

FIG. 7 is a perspective view showing a state where a retaining wall is formed partway.

FIG. 8 is a sectional view of the formed retaining wall.

FIG. 9 is a cross-sectional view at a position different from FIG.

FIG. 10 is a perspective view for explaining the procedure of assembling the retaining wall block structure of the third embodiment.

FIG. 11 is a plan view showing a combined state of a block body and a weir plate for explaining a fourth embodiment.

FIG. 12 is a perspective view showing a weir plate used in a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Block main body 11 Mirror part 11a Wall hole 12 Recessed part 13 Fitting groove 20 Weir plate 21 Cut groove A Body part

Claims (11)

(57) [Claims] 1. A horizontal section integrally provided with a rectangular plate-shaped mirror portion and a pair of rectangular plate-shaped stay portions extending from the back surface of the mirror portion.
The end plate having a bottomless block body having a shape, and a pair of cut grooves which can be inserted into fitting grooves provided in the vicinity of the rear end of each of the recesses in a direction perpendicular to the recesses. A block structure for a retaining wall used in combination with a weir plate having the same height, wherein the weir plate is fitted so as to straddle a fitting groove of a recess in a block body or an adjacent block body, and a back surface of the block body is provided. retaining wall block structure, wherein a space that passes with the vertical direction caused by closing the side was Dokomi unit. 2. The retaining wall block structure according to claim 1.
3. The retaining wall block structure according to claim 1, wherein one or more wall holes of an arbitrary shape are provided in the mirror portion. 3. The retaining wall block structure according to claim 1 or 2, wherein the projecting portion uses a weir plate having a bent shape. 4. The retaining wall block structure according to claim 1, wherein the retaining wall block has one or more holes of an arbitrary shape. Structure. 5. The retaining wall block structure according to claim 1, wherein one or a plurality of holes of an arbitrary shape are provided in the retaining portion. body. 6. The retaining wall block structure according to any one of claims 1 to 5, wherein a soil,
A block structure for a retaining wall, which is filled with any one or a plurality of the above-mentioned materials as appropriate in combination with stone. 7. A horizontal cross section integrally provided with a rectangular plate-shaped mirror portion and a pair of rectangular plate-shaped stay portions extending from the back surface of the mirror portion.
The end plate having a bottomless block body having a shape, and a pair of cut grooves which can be inserted into fitting grooves provided in the vicinity of the rear end of each of the recesses in a direction perpendicular to the recesses. A block structure for a retaining wall used in combination with a weir plate having the same height, in which a required number of the bottomless block bodies are first laid laterally, and thereafter the straddle is straddled by a fitting groove of a retaining portion in the block body. The block body or the adjacent block bodies are connected to each other by the weir plate, and the back side of the block body is closed to form a bulge portion. In soil, stone and concrete or any combination of each of said materials and contain,
A method for forming a retaining wall, comprising repeating the above steps and masonry upward. 8. The retaining wall forming method according to claim 7, wherein a block body having one or more wall holes of an arbitrary shape provided in said mirror portion is used at a predetermined position. Method. 9. The method for forming a retaining wall according to claim 7, wherein a projecting portion uses a weir plate having a bent shape. 10. The retaining wall forming method according to claim 7, wherein a dam plate provided with one or a plurality of holes of an arbitrary shape is used. 11. The method for forming a retaining wall according to claim 7, wherein one or more holes of an arbitrary shape are provided in the retaining portion.