JP2740647B2 - Concrete block for 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 concrete block for retaining walls, and more particularly to a concrete block for retaining walls, and more particularly, to a concrete block for retaining walls. The present invention relates to a concrete block for retaining wall forming a wall.

[0002]

2. Description of the Related Art Conventionally, a front plate portion and a rear plate portion are arranged in parallel at a predetermined interval, and connecting portions for connecting both are provided in two rows, and both ends of the front plate portion and the rear plate portion are provided. There is a concrete block for retaining wall (hereinafter, may be simply referred to as a “cross-girder block”) formed in a cross-girder shape. If this cross-girder block is used, as shown in FIG. 14, the retaining wall is formed by being stepped (laminated) at a predetermined inclination angle. Reference numeral 50 denotes a retaining wall concrete block (girder block), which is stacked on the inclined surface of the foundation 51. The top surface and the bottom surface of the front plate portion 52, the back plate portion 54, and the connecting portion 56 are planes parallel to a direction orthogonal to the inclination direction of the retaining wall. According to this, the girder blocks 50 can be stacked without gaps. Kuriishi in the inner space surrounded by the frame of the girder,
By filling the filling material 58 such as crushed stone and earth and sand,
The retaining wall is formed by fixing the girder block 50.

[0003]

However, in the above conventional girder block 50, when it is stacked, it easily slips to the rear side, and special anti-slip means is required. (Note that, as the non-slip means, for example, a method in which the other convex portion is fitted into the concave portion provided on one side, a concave portion is formed on both opposing surfaces of the upper and lower adjacent girder blocks 50, 50, and both concave portions are formed. There is a method of inserting an engaging member, or a method of using these methods in combination.) In addition, in the conventional girder block 50, if the upper girder block 50 slides on the upper surface of the lower girder block 50 and shifts, it is displaced. Also, an error occurs in the overlapped height dimension. When the cross-girder blocks 50 are stacked, the upper cross-girder blocks 50 are stacked half-by-two on the two cross-girder blocks 50 arranged side by side in the lower layer, but the overlapped height dimension is incorrect. Cannot be stacked properly. Therefore, there is a problem that a small error is not allowed and construction is difficult.

[0004] Further, since the height of the retaining wall which is raised by stacking the single-stage girder blocks 50 does not coincide with the height of the front plate portion 52, various sizes are used in particular. In the case where the retaining wall is changed, it is difficult to manage the retaining wall, which causes a reduction in work efficiency.
Furthermore, since the surface of the front plate portion 52 is parallel to the inclination direction of the retaining wall, the surface of the retaining wall becomes one surface, and there is no foothold, animals cannot come and go, greening cannot be performed, There was a problem that we could not meet the needs of environmental protection and landscape improvement.

[0005] Therefore, an object of the present invention is to provide a retaining wall capable of forming a retaining wall suitable for environmental protection as well as facilitating construction of a retaining wall without slipping easily when stacking. An object of the present invention is to provide a concrete block for a wall.

[0006]

The present invention has the following configuration to achieve the above object. That is, the present invention provides a retaining wall concrete block that is stacked to form a retaining wall so that the retaining wall has a predetermined inclination angle with respect to the vertical direction, and a horizontal plane that is horizontal when the stack is stacked is a top surface. And a front plate portion formed on the bottom surface and forming the front surface of the retaining wall,
A back plate portion arranged in parallel with the front plate portion at a predetermined interval, and connected such that when the front plate portion and the back plate portion are stacked, the former is located above the latter; And a connecting portion formed on an upper surface and a lower surface with an inclined surface which is parallel to a direction orthogonal to the retaining wall surface when being stacked.

Further, the connecting portions are provided in two rows in a direction orthogonal to the front plate portion and the back plate portion, and are formed in a grid shape in which both ends of the front plate portion and the back plate portion project.
The inner space formed by being surrounded by the frame of the girder can be suitably formed, whereby the retaining wall can be suitably formed.

[0008] Further, on the top surface and the bottom surface of the back plate portion,
By forming a horizontal plane that is horizontal when stacked
Slippage during stacking can be suitably prevented. Further, while forming the front plate portion and the back plate portion in the same shape,
By forming the connection shapes of the two connection portions to be the same point-symmetrically, the workability of the stepped product can be improved. Further, since the front plate portion, the rear plate portion and the connecting portion are integrally formed, the assembling work can be omitted, and the working efficiency can be improved.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. (First Embodiment) FIG. 1 is a perspective view showing a first embodiment of a concrete block 10 for retaining walls according to the present invention. The concrete block for retaining wall 10 is stacked to form a retaining wall such that the retaining wall has a predetermined inclination angle with respect to the vertical direction. Reference numeral 12 denotes a front plate portion, which is formed in a strip shape having an elongated thickness. The top surface and the bottom surface 12b are formed on horizontal surfaces 12a and 12b which become horizontal when stacked. The surface of the front plate 12 of the first embodiment is formed parallel to the vertical direction.

Reference numeral 14 denotes a rear plate, which is arranged in parallel with the front plate 12 at a predetermined distance. This back plate part 1
The top surface 4 and the bottom surface 4 are also formed on horizontal surfaces 14a and 14b that are horizontal when stacked. In this embodiment, the front plate 12 and the rear plate 14 are formed in the same shape, and the front plate 12 and the rear plate 14 are formed in the same shape.
The connection shape with the connection portion 16 described later is also formed to be the same point-symmetrically, and can be suitably used even if reversed. That is,
It can be used reversibly, can be easily handled during installation, and can improve workability during construction.

Reference numeral 16 denotes a connecting portion, one end of which is provided on the front plate portion 12.
And the other end is integrally connected to the back plate portion 14. The connecting portion 16 connects the front plate portion 12 and the rear plate portion 14 so that the former is positioned higher than the latter when the front plate portion 12 and the rear plate portion 14 are stacked. Inclined surfaces 16d and 16e are formed on the upper and lower surfaces to be parallel to the direction perpendicular to the direction.

According to the first embodiment, if the portion provided with the upper and lower inclined surfaces 16d and 16e is the inclined portion 16a, both ends of the inclined portion 16a are connected to the horizontal portions 16b and 16b.
c, the upper and lower surfaces of which are horizontal surfaces 16f,
16g, 16h and 16i. More specifically, the horizontal surface 16f on the upper surface side is formed on the same plane as the horizontal surface 12a on the top surface side of the front plate portion, and the horizontal surface 1f on the lower surface side is formed.
6g is formed on the same plane as the horizontal surface 12b on the bottom side of the front plate portion. Similarly, the horizontal surface 16h on the upper surface side is formed on the same plane as the horizontal surface 14a on the top surface side of the back plate portion,
The horizontal surface 16i on the lower surface side is the horizontal surface 1 on the bottom surface side of the back plate portion.
4b.

Further, the horizontal plane and the inclined plane are continuous in a state of being bent in a U-shape when viewed from the side. Since the horizontal surface and the inclined surface are provided as described above, the concrete block 10 for retaining wall is laminated, and the concrete block 10 for upper retaining wall is placed on the concrete block 10 for lower wall with respect to the inclined surface 16d. The upper retaining wall concrete block 10 does not easily slide even if a force is applied to slide the upper retaining wall. This is because, on the front plate portion 12 side, the horizontal surfaces 12a, 16g of the lower retaining wall concrete block 10 come into contact with the horizontal surfaces 12b, 16g of the upper retaining wall concrete block 10, and serve as stoppers. is there. By the way, as a matter of course, slippage is also prevented when the inclined portions 16a of the upper and lower connecting portions 16 are in surface contact with the upper and lower inclined surfaces 16d and 16e. The upper and lower inclined surfaces 16d and 16e do not need to be formed on one surface, and may be provided with uneven portions. The irregularities can be used to prevent slippage or reduce weight.

On the rear plate portion 14 side, the horizontal surfaces 14a and 16h of the lower concrete block 10 for retaining wall are
Horizontal surface 14 of upper retaining wall concrete block 10
b and 16i are in contact, and the upper retaining wall concrete block 10 is suitably received by the lower retaining wall concrete block 10. This also prevents the upper retaining wall concrete block 10 from sliding along the inclined surface 16d of the lower retaining wall concrete block 10. Note that the horizontal plane only needs to be formed at least on the front plate portion 12 and does not have to extend to the connecting portion 16 as in the present embodiment, and the horizontal surface is significantly wider than the connecting portion 16 in this embodiment. It may be formed.

Further, the upper surface of the concrete block 1 for the upper retaining wall with respect to the lower side is formed by matching the lower surface of the lower surface with the upper surface of the upper surface formed by the horizontal surface and the inclined surface.
The position in the front and back (front and back) directions of 0 is easily determined, and the workability can be improved. In addition, the height of the front plate portion 12 matches the height of the retaining wall that is raised by the one-stage concrete block 10 for retaining wall being stacked. Therefore, management is easy, such as easy setting of dimensions, and work efficiency during construction can be improved.

FIG. 2 is a perspective view showing an example of the foundation concrete according to the present invention.
The concrete block 10 for retaining walls can be placed on the upper surface of the wall and stacked. Reference numeral 20a denotes an upper horizontal mounting surface, and the horizontal surfaces 12b and 16g on the bottom side of the concrete block for retaining wall 10 come into contact with each other, and the corner of the upper horizontal mounting surface 20a and the bending angle of the U-shaped lower surface. The portions are matched, and the position of the retaining wall concrete block 10 is determined. Also, horizontal surfaces 14b and 16i on the bottom side of the back plate portion 14
Is contacted on the lower horizontal placing surface 20b, and the retaining wall concrete block 10 is placed on the foundation concrete 20. Reference numeral 20c denotes an inclined surface, and the inclined surface 16e on the lower side of the connecting portion 16 is abutted, and the retaining wall concrete block 10 is also supported by the inclined surface 20c.

In the first embodiment, the connecting portion 16, the front plate portion 12 and the back plate portion 14 are integrally formed as a whole. Therefore, labor for assembling can be omitted, and the construction time can be shortened. In addition, the connecting portion 16 is formed so that both ends of the front plate portion 12 and the rear plate portion 14 are formed in a grid shape protruding.
It is provided in two rows in a direction orthogonal to the front plate 12 and the back plate 14. This makes it possible to suitably form an inner space formed by being surrounded by the frame of the girder. By putting the filling material 18 into the inner space as shown in FIG.
A retaining wall can be formed while fixing the retaining block concrete block 10. It should be noted that the infill material 18 may be rubble stone, crushed stone, earth and sand, waste material, or the like. This is suitable because local soil and the like can be used as they are.

FIG. 4 shows an embodiment of the retaining wall formed by stacking the concrete blocks for retaining wall of the first embodiment. In the lower part where the earth pressure is applied, the connecting part 16 is long and the concrete block for retaining wall which can put a lot of infill material is piled up. Walls can be formed in a well-balanced manner.

According to the concrete block for retaining wall of the present invention, the following effects can be obtained in addition to the above-mentioned effects. Small animals can be moved using the assembled stairs. The stairs prevent avalanches in snowy areas. Further, since the inclined retaining wall is not one-sided but has a step-like shape, it becomes three-dimensional, so that an aesthetic appearance can be obtained. The retaining wall (entire) has a predetermined inclination angle with respect to the vertical direction. Furthermore, since the retaining wall concrete block 10 is formed reversibly as described above, it is possible to form a pattern on one side and apply a smooth surface or another pattern on the other side. It is also possible to change the retaining wall by using it.

(Second Embodiment) Next, a second embodiment of a concrete block for retaining walls will be described with reference to FIG.
As shown in FIG. 5, the second embodiment differs from the first embodiment in the shape of the connection between the connecting portion 16 and the rear plate portion 14 side. That is, the concrete block 22 for retaining wall of the second embodiment.
Has a horizontal portion 16b where a portion of the connecting portion 26 connected to the front plate portion 12 has an upper surface and a lower surface which are horizontal surfaces 1b.
6f and 16g. The upper and lower surfaces of the inclined portion 26a are inclined surfaces 26d and 26e. Back plate 24
Is arranged at an angle along the slope of the retaining wall of the retaining wall, and the upper surface 2
4a is formed on the same surface as the inclined surface 26d, and the lower surface 24b is formed on the same surface as the inclined surface 26e.

FIG. 6 is a side sectional view showing an embodiment of a retaining wall formed by using the second embodiment. In the lower part of the retaining wall, the two retaining wall concrete blocks 22 are connected to each other by abutting the back plate 24, and are used in the same shape as the engagement relationship between the front plate and the back plate in the first embodiment. I have. In the upper layer, a single retaining wall concrete block 22 is laminated. By utilizing the form of the concrete block 22 for the retaining wall, the lower layer and the upper layer of the retaining wall can be suitably formed.

Next, another application example will be described with reference to FIGS. In the retaining wall of FIG. 7, concrete blocks 30 for retaining wall provided with pot portions by extending the horizontal portion on the front side to the front side are stacked in several steps. According to this retaining wall, greening such as tree planting is possible using the pot portion. In addition, by changing the length of the horizontal portion in this way, it is possible to form unevenness when stacked. Also, as in the case of the retaining wall in FIG. 8, it is possible to change the front surface (retaining wall surface) of the retaining wall by stacking concrete blocks for retaining wall in which the length of the front plate portion in the height direction is changed. It is possible to obtain an aesthetic appearance. FIG. 9 is a plan view showing an example of the arrangement of the retaining wall concrete block. The retaining wall concrete block 10a disposed at a portion corresponding to the curved portion of the retaining wall has a rear plate portion rather than a front plate portion. The length has been shortened. According to this, the curved portion of the retaining wall can be suitably formed.

Further, a specific embodiment will be described with reference to FIGS. In the embodiment shown in FIGS. 10 and 11, a concave portion 40 a formed by tapering and expanding is provided on a horizontal surface 14 a on the top surface side of the back plate portion 14, and a horizontal surface 16 i on the lower surface side of the connecting portion 16 is also provided. There is provided a concave portion 40b which is formed in a tapered shape. The concave portion 40a and the concave portion 40b are provided at positions facing each other when the retaining wall concrete blocks are stacked as shown in FIG. 4
Reference numeral 1 denotes a pin, which is formed in a tapered shape in both the upper and lower directions, fits into the recesses 40a and 40b, and prevents the upper retaining wall concrete block from slipping against the lower retaining wall concrete block. . The pin 41 also functions as a member for positioning the retaining wall concrete block. Reference numeral 42 denotes a through hole, which is provided to reduce the weight. The embodiment shown in FIG. 12 is an example of a concrete block for a retaining wall in which a pot portion 50 is formed to protrude to the front side. The embodiment shown in FIG. 13 is an example of a concrete block for a retaining wall having a through hole 60 provided in the center of the front surface. If the concrete block for retaining wall is arranged at the water's edge, the through hole 60 can be used as a fishway, and the inside of the girder can be used as a fish nest. Therefore, it is an effective form for environmental protection.

In the above embodiment, the concrete block for retaining wall formed integrally has been described. However, the front plate 12, the rear plate 14 and the connecting portion 16 may be separately formed so as to be assembled. Of course. According to this, there is an advantage that the molding can be facilitated and the transportability and the interchangeability of parts can be improved. As described above, the present invention has been described in various ways with preferred embodiments.
The present invention is not limited to this embodiment, and it goes without saying that many modifications can be made without departing from the spirit of the invention.

[0025]

According to the present invention, horizontal planes that are horizontal when stacked on the front plate are formed on the top and bottom surfaces,
An inclined surface which is parallel to a direction orthogonal to the retaining wall surface when stacked is formed on the upper and lower surfaces of the connecting portion. Therefore, the horizontal surface of the front plate portion does not easily slip when stacking, and facilitates the positioning, so that the construction of the retaining wall can be easily performed, and the retaining wall can be formed in a step-like manner. It has a significant effect that it can be in a form suitable for maintenance.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment (first embodiment) of the present invention.

FIG. 2 is a perspective view showing an example of a foundation concrete according to the present invention.

FIG. 3 is a side sectional view showing an example of a retaining wall formed using the first embodiment.

FIG. 4 is a side sectional view showing another example of the retaining wall formed by using the first embodiment.

FIG. 5 is a perspective view showing another embodiment (second embodiment) of the present invention.

FIG. 6 is a side sectional view showing an example of a retaining wall formed by using the second embodiment.

FIG. 7 is a side sectional view showing an example of a retaining wall according to the present invention.

FIG. 8 is a side sectional view showing an example of a retaining wall according to the present invention.

FIG. 9 is a plan view showing an example of the arrangement of the retaining block concrete block according to the present invention.

FIG. 10 is a perspective view showing another embodiment of the present invention.

FIG. 11 is a side sectional view showing a use state of the embodiment of FIG. 10;

FIG. 12 is a perspective view showing an embodiment having a pot portion of the present invention.

FIG. 13 is a perspective view showing an embodiment that can be used as a fish nest of the present invention.

FIG. 14 is a side sectional view illustrating a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Concrete block for retaining walls 12 Front board part 12a, 12b Horizontal plane 14 Back board part 14a, 14b Horizontal plane 16 Connection part 16a Inclined part 16d, 16e Inclined surface 20 Foundation concrete

Claims (5)

(57) [Claims] 1. A retaining wall concrete block that is stacked to form a retaining wall so that the retaining wall has a predetermined angle of inclination with respect to a vertical direction, wherein a horizontal plane that is horizontal when stacked is a top surface and A front plate portion formed on the bottom surface and forming the front of the retaining wall, a back plate portion arranged in parallel with the front plate portion at a predetermined interval, and the front plate portion and the back plate portion A connecting portion that connects the former so as to be positioned above the latter when stacked, and has an inclined surface formed on an upper surface and a lower surface that is parallel to a direction perpendicular to the retaining wall when stacked. A concrete block for a retaining wall, comprising: 2. The connector according to claim 1, wherein the connecting portions are provided in two rows in a direction orthogonal to the front plate portion and the back plate portion, and are formed in a grid shape in which both ends of the front plate portion and the back plate portion project. The concrete block for a retaining wall according to claim 1, wherein 3. The concrete block for a retaining wall according to claim 1, wherein a horizontal surface that is horizontal when being stacked is formed on a top surface and a bottom surface of the back plate portion. 4. The retaining wall according to claim 3, wherein the front plate portion and the rear plate portion are formed in the same shape, and the connection shape of the both connection portions is formed in the same point-symmetrical manner. For concrete blocks. 5. The device according to claim 1, wherein the front plate, the rear plate and the connecting portion are integrally formed.
The concrete block for retaining wall according to 3 or 4.