JP2003020627A - Concrete block for repair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To repair the surface of a retaining wall so that a surrounding natural landscape is not impaired and an ecosystem can be maintained by positively cultivating microorganisms and plants on the surface of the retaining wall. SOLUTION: A space forming portion 4 producing a space between block bodies adjacent to each other when the block bodies 2 are laid down is provided on the peripheral edge portions of a flat plate-like block body 2. A surface part 3 is configured in a shape matching the landscape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair concrete block for repairing the surface of an existing retaining wall constructed as a river bank, a road, a track, or a slope for retaining a land or a retaining soil. It is about.

[0002]

2. Description of the Related Art As is well known, retaining walls made of concrete blocks are constructed on rivers for use as revetments, and concrete blocks are used for protection of roads, tracks or slopes for land development, and for retaining soil. The retaining wall is built. Since the existing retaining wall is made of only concrete blocks with a rectangular surface, it gives an artificial and cold impression, impairing the surrounding landscape and lacking consideration for the natural environment and ecosystem. ing.

Therefore, as a conventional method for repairing an existing retaining wall, there is an invention described in, for example, JP-A-6-322780. The conventional repair method has a structure in which an anchor bolt is fixed to a desired position on the retaining wall, and a decorative block is attached and fixed to the surface of the retaining wall by the anchor bolt.

[0004]

However, in the above-mentioned conventional retaining wall repairing method, the decorative block is a rectangular and flat plate-like body made of concrete, and only has a shape imitating natural stone on the surface. is there. Therefore, the surface of the retaining wall that has been repaired only has the form of natural stone, and no particular consideration is given to the landscape or the environment and ecosystem. Therefore, it is an object of the present invention to repair a retaining wall, and not to spoil the surrounding natural landscape, and to actively grow microorganisms and plants on the surface.

[0005]

In order to achieve the above object, the present invention provides a gap forming portion in which a gap is generated between adjacent block bodies in a state where the block bodies are laid on the periphery of a flat plate-shaped block body. It is characterized in that it has a shape corresponding to the landscape on the surface.

The present invention is also characterized in that the gap forming portion is halfway in the thickness direction from the front surface to the back surface of the block body, or the entire length in the thickness direction from the front surface to the back surface.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the drawings.

FIG. 1 is a perspective view of a first embodiment of the present invention, and FIG.
Is a front view of the above, FIG. 3 is a cross-sectional view taken along the line AA of FIG.
Is a front view of the retaining wall repaired by the block of the first embodiment,
5 is a vertical sectional view of the above, FIG. 6 is a perspective view of a second embodiment of the present invention, FIG. 7 is a front view of the same, FIG. 8 is a plan view of the same, and FIG.
[Fig. 6] is an enlarged front view of a retaining wall repaired by the block of the second embodiment.

In the concrete block 1 for repair of the first embodiment of the present invention, the surface portion 3 of the block body 2 in the shape of a rectangular flat plate has a shape corresponding to the natural scenery around the wall for repairing and constructing the retaining wall. As its specific form, for example, a natural stone pattern is applied, an uneven shape is formed, a fine satin form is formed, or a splitton shape is formed.
It corresponds to the landscape.

At the peripheral portion of the block main body 2, a gap forming portion 4 is provided in which a gap is generated between the adjacent block main bodies 2 in a state where the block main body 2 is closely laid for repair on the surface of the retaining wall.

According to the first embodiment of the present invention shown in FIGS. 1 to 5, the gap forming portion 4 has a loose arc shape at the peripheral edge thereof in the thickness direction from the front surface to the back surface of the block body 2. Notch 41 formed by notching
And a diagonal edging portion 42 formed on the periphery of the surface portion 3 which is surrounded by the cut portion 41 and is deformed with respect to the rectangle of the block body 2, and the corner portions 43 are corners of the block body 2. There is also a portion that is displaced with respect to the corner portion 21.

Therefore, the cut portion 41 is formed in a step shape at the peripheral portion of the block body 2, and the surface portion 3 surrounded by the cut portion 41 has the rectangular shape of the block body 2 as described above. It has a deformed and distorted form. In addition, a plurality of vertical groove portions 5 are provided on the back surface of the block body 2.
Is formed to increase the bond strength when repairing the surface of the retaining wall.

The repair concrete block 1 of the first embodiment of the present invention has the above-mentioned construction. To repair the surface of the retaining wall a on the slope with this block 1, as shown in FIGS. The repair concrete block 1 is laid closely on the surface of the retaining wall a and fixed with mortar, an adhesive or the like, or fixed with an anchor bolt or the like. In this case, since the vertical groove portion 5 can widen the contact area of the mortar and the adhesive as described above, the fixing strength of each repair concrete block 1 can be sufficiently increased.

Therefore, the cut portions 4 of both block main bodies are provided at the contact portions of the adjacent repair concrete blocks 1.
1 and the edging portion 42 form a gap b having an irregular shape, and sediment and rainwater flow into the gap b, so that plants are planted and minute organisms inhabit.

6 to 8 show a second embodiment of the present invention. A repair concrete block 10 of the second embodiment.
1 is a concrete block for repair 1 of the first embodiment
The surface portion 1 of the rectangular block-shaped block body 102 is similar to
03 is in a form corresponding to the natural landscape of the area to be repaired and constructed.

At the peripheral portion of the block main body 102, a gap forming portion 104 is provided in which a gap is generated between adjacent block main bodies 102 in a state of being closely laid for repair on the surface of the retaining wall.

The gap forming portion 104 has a first notch 105 formed by cutting out the entire length in the thickness direction from the front surface to the back surface of the block body 102, and a middle portion in the thickness direction from the front surface to the back surface. It is configured by a second cutout portion 106 formed by cutting out up to, and an oblique edging portion 107 formed on the peripheral edge of the surface portion 103.

The first cutouts 105 are provided on the right and left sides of the corner of the block body 102, and the second cutouts 106 are continuous with the first cutouts 105. Since it is provided on the side of, the position of the corner portion is displaced like the block of the first embodiment. The edging portion 107 is formed on the entire periphery of the block body 102.

Therefore, when the repair concrete block 101 is laid closely on the surface of the retaining wall a and fixed with mortar, an adhesive or the like, or fixed with anchor bolts or the like, the adjacent repair concrete is fixed. In the contact portion of the block 101, the gap forming portions 104 of both block main bodies are united to form a gap portion b having an irregular shape, and the gap portion b is extended to the surface of the retaining wall by the first cutout portion 105. The second cutout portion 106 communicates with each other, and the second cutout portion 106 is halfway through the thickness of the block body, so that the gap portion b has a complicated shape. Therefore, the gap b generated in the second embodiment
Is up to the surface of the retaining wall or halfway,
It is a perfect environment for the accumulation of earth and sand and planting and inhabitation of microscopic organisms, which can positively improve the ecosystem.

Although the present invention has been described based on the embodiments of the drawings, the present invention is not limited to the above embodiments, and may be modified in any manner as long as the configuration described in the claims is not changed. It can be carried out. For example, the gap forming portion is not limited to the above-mentioned embodiment, and may have any structure as long as the block is closely laid on the surface of the retaining wall. The repair concrete block may have any configuration as long as it can be laid closely on the surface of the retaining wall. Also, the block body 2, 1
If 02 is molded with porous concrete having innumerable continuous microscopic voids, microscopic organisms and plants grow in the microscopic voids, protecting vegetation and landscape,
And it can bring about improvement of environment and maintenance of ecosystem.

[0021]

In summary, according to the present invention, a gap forming portion is provided in the peripheral portion of a flat plate-shaped block body so that a gap is generated between adjacent block bodies in a state where the block body is laid, and the surface is provided on the surface. Is characterized by having a form corresponding to the landscape.

Therefore, when the surface of the retaining wall is repaired, the repaired surface can correspond to the surrounding scenery, and a gap that is rich in variation is formed due to the union of the gap forming portions of the adjacent blocks, and the earth and sand are formed in this gap. Will flow in and rainwater will enter, plants will grow and small creatures will inhabit,
It is possible to conserve the natural environment and maintain the ecosystem.

Further, if the gap forming portion is made halfway in the thickness direction from the front surface to the back surface of the block body, sediment will accumulate, and the gap forming portion will extend from the front surface to the back surface of the block body in the thickness direction. If it is set, since the sediments are stored in a complicated form, it is possible to more reliably protect the vegetation and the environment of the natural world and maintain the ecosystem.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a front view of the above.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a front view of the retaining wall repaired by the block of the first embodiment.

FIG. 5 is a vertical sectional view of the above.

FIG. 6 is a perspective view of a second embodiment of the present invention.

FIG. 7 is a front view of the above.

FIG. 8 is a plan view of the above.

FIG. 9 is an enlarged front view of the retaining wall repaired by the block of the second embodiment.

[Explanation of symbols]

1 Repair concrete block 2 block body 3 surface 4 Gap forming part 5 Vertical groove 21 Corner 41 notch 42 Border 43 Corner 101 Repair Concrete Block 102 block body 103 surface 104 Gap forming part 105 first notch 106 second notch 107 Border

Claims (3)

[Claims] 1. A gap forming portion is provided on a peripheral portion of a flat plate-shaped block main body, in which a gap is generated between adjacent block main bodies when the block main body is laid, and
A concrete block for repair, characterized in that the surface part has a shape corresponding to the landscape. 2. The repair concrete block according to claim 1, wherein the gap forming portion is halfway in the thickness direction from the front surface to the back surface of the block body. 3. The repair concrete block according to claim 1, wherein the gap forming portion is the entire length in the thickness direction from the front surface to the back surface of the block body.