JP3236880B2 - Greening seawall and concrete block for seawall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a greening revetment and a concrete block for revetment used for a large embankment at a place where water is not normally flooded, for example, a basin in a large river.

[0002]

2. Description of the Related Art Conventionally, a revetment of a large embankment generally has a structure in which a concrete revetment wall is attached to a river side of a dike by stacking heavy concrete blocks along a slope.

[0003] In addition, most embankments constructed outside a riverbed for flooding, which are not usually washed by running water, only have grass vegetation applied to the surface of the embankment.

[0004]

Even if the embankment is located in a place where water is not normally flooded as described above, it is necessary to fulfill its role during heavy rain, such as once every several years or several decades. It is necessary to reinforce the risk of collapse when washed with running water, because it is very dangerous.

[0005] However, in the case of revetment using a conventional concrete block, since the concrete surface is exposed,
There was a problem that the surrounding scenery was significantly changed.

The present invention has been made in view of such a problem, and usually, grasses cover the entire surface of the embankment like a bank with only embankment, and even if the surface is washed away by flooding during heavy rain, the embankment may collapse. The purpose of this project is to provide a greening revetment structure and a revetment block that cannot be reached.

[0007]

SUMMARY OF THE INVENTION In order to solve the conventional problems as described above and to achieve the intended purpose, the feature of the greening seawall according to the present invention is that it is built on the back surface of a rectangular block-shaped block body.
An integral anchoring portion embedded in the embankment , and a plurality of vertically projecting ribs are provided on the surface side of the block body, and the projecting side ends of the projecting ribs protrude right and left in a flange shape. The vertical projection
A concrete block for revetment having a dovetail groove formed between ribs is embedded in the embankment embankment and the projecting ribs are vertically connected to each other so that the dovetail groove is raised.
A concrete revetment wall is constructed by arranging a large number of them in a continuous arrangement underneath, a protruding rib on the surface of the concrete revetment wall is buried, a surface embankment having a constant thickness is laid on the surface, and the dove groove recess is formed on the embankment. Vegetation was applied so that the roots could be set up in the grooves .

The feature of the concrete block for seawall according to the present invention resides in that
An integral anchoring portion embedded in the embankment embankment , and a plurality of vertically protruding ribs are provided on the surface side of the block main body, and a protruding bulge that protrudes right and left at the protruding end of the protruding rib. The vertical orientation
A dovetail-shaped groove is formed between the protruding ribs and arranged side by side.
Dovetail groove between vertically projecting ribs of adjacent blocks
That is, a concave groove is formed .

[0009]

In the present invention, a concrete block for revetment is stably fixed to the embankment by embedding the anchor portion on the back surface thereof in the embankment of the embankment. In addition, the grooves between the protruding ribs are arranged vertically continuously by arranging a large number of revetment concrete blocks in an arrangement where the protruding ribs on the front side are vertically connected, making it easy to fill the surface layer embankment into the grooves. Become.

[0010] Furthermore, the plants and plants planted on the surface embankment strongly retain the soil inside by the roots rising into the dovetails between the protruding ribs, and are not easily washed away even when washed with running water.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

1 to 3 show an example of a concrete block A for revetment according to the present invention.

The block A has a pair of fixing anchors 11 and 11 integrally arranged in parallel with each other on the back side of a block body 10 having a rectangular thick plate shape. The anchor portion 11 is in the shape of a vertically oriented plate, and integrally has projecting portions 11a outwardly facing each other at the protruding end portions.

The upper and lower surfaces of both anchor portions 11 are formed with concave portions 11b and convex portions 11c which are symmetrically arranged. When the block main body 10 is vertically stacked, the concave and convex portions 11b and 11c are aligned with each other. The upper and lower block bodies 10, 10,... Are arranged in the same plane.

On the front side of the block body 10, a pair of vertically projecting ribs 12, 12 are integrally provided. The protruding ribs 12 are integrally formed with flanges at both left and right edges of the protruding end, and are formed integrally with each other in a flange shape. The dovetail groove 15 is formed.

The two ribs 12, 12 are arranged such that the distance a from the center thereof to both side edges of the block body 10 is half the center distance b of the two ribs 12, 12.

The block body 10 is provided with a cast-in-place concrete filling hole 13 which penetrates vertically in the thickness of the central portion thereof, and has a shape in which the concrete filling hole 13 is divided in half on both sides. Cast-in-place concrete filling grooves 14, 14 are formed so that when the block main bodies 10 are arranged next to each other, the grooves 14 face each other to form concrete filling holes 13a (shown in FIG. 6). .

[0018] To build the greening revetment using thus constructed blocks A constructs a foundation 20 with a location hitting concrete as shown in FIG. 4, the block A on it, the anchor portion 11 the towards slope side of the embankment fill B, stacked to the desired tilt angle determined in advance. At this time, as shown in FIG. 5, the upper and lower blocks A are laterally shifted by 1/2 of the lateral length thereof, and are so-called laid-up.
And As a result, the projecting ribs 1 of the left and right blocks A
A dovetail-shaped groove 15 is formed between
The protruding ribs 12 are vertically connected between the lower blocks A.
To form a dovetail-shaped concave groove 15 continuous vertically. Also,
At the same time, a concrete filling hole 13a formed by abutting the side surfaces of both upper block bodies 10, 10 on the central concrete filling hole 13 of the lower block body 10 is continued .

In this way, while the blocks A are sequentially stacked, the backside is filled with backfill soil and integrated with the embankment embankment B. Each time the pile is stacked at a predetermined height, a steel bar 21 for reinforcing the connecting portion is inserted into each of the concrete filling holes 13 and 13a communicating vertically, and concrete 22 is inserted therein.
And the blocks A are integrated to form a concrete revetment. The lower end of the steel bar 21 is embedded in the foundation 20, and is sequentially extended upward using the coupler joint 23.

After the concrete revetment wall has been constructed on the river side slope of the embankment embankment B in this way, a surface embankment C is laid in layers on the surface side as shown in FIG. When the surface embankment C is laid, the dovetail grooves 15, 15 between the protruding ribs 12, 12,... Are sufficiently filled so as to have a desired density. The filling can be performed by dropping earth and sand from the upper part of the slope and sliding down the inside of the grooves 15, 15,....

[0021] either leave is mixed seeds and fertilizer advance grasses in the laid surface embankment Thus, or paste the lawn compound on the surface, they were grown in vegetation and without (not shown), this As the grass grows, the roots
Vegetation is applied to the soil. As a result, the sediment is kept in a state where it is not easily released, and it is firmly fixed on the surface of the concrete revetment with the surface embankment and grass.
Is done .

[0022]

As described above, according to the present invention, the slope of the embankment embankment is completely covered by the board-shaped revetment wall made of concrete blocks, and even if the river is flooded by heavy rain and the slope is washed. Since it does not collapse, and the surface embankment is fitted into the dovetail-shaped groove integrally with the vegetation, it is not easily washed away and the greening is maintained.

Further, even if the surface embankment is washed away by strong running water for a long time, even if the surface embankment is washed away, it has no effect on the inside of the revetment wall. Greening is obtained.

[Brief description of the drawings]

FIG. 1 is a plan view of a seawall concrete block according to the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a longitudinal sectional view showing a state in which a seawall according to the present invention is being constructed.

FIG. 5 is a front view in which the inclination is not shown.

FIG. 6 is a sectional view taken along line AA in FIG. 4;

FIG. 7 is a cross-sectional view showing a completed state of the revetment according to the present invention.

[Explanation of symbols]

 A Concrete block for revetment B Embankment C Surface embankment 10 Block body 11 Anchor part 11a Overhang part 11b, 11c Uneven part 12 Projection rib 12a Swelling part 13, 13a Concrete filling hole 14, 15 groove 20 Foundation 21 Steel bar 22 Concrete 23 Coupler joint

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E02B 3/14 E02B 3/12 E02D 17/20

Claims (2)

(57) [Claims] 1. A block-shaped block main body having a rectangular shape, an anchor portion for fixing embedded in a bank embankment is integrally provided on a back surface of the block main body, and a plurality of vertically projecting ribs are provided on a surface side of the block main body. The rib is provided with a bulging part that protrudes in the shape of a flange on the left and right sides at the projecting end.
A dovetail groove is formed between the protruding ribs and
Ants between the vertical ribs of adjacent blocks
A concrete block for revetment where a groove-like groove is formed ,
The anchor portion is embedded in the embankment and the projecting ribs are vertically connected so that the dovetail groove is vertically continuous.
Building a large number side by side concrete revetment wall arrangements, embed collision rib surface of the concrete revetment walls, laying surface embankment having a predetermined thickness on the surface thereof, wherein the該盛soil dovetail
A greening seawall with vegetation so that the roots are stretched in the groove . 2. A block-shaped block main body having a rectangular shape, a fixing anchor portion embedded in a bank embankment is integrally provided on a back surface of the block main body, and a plurality of vertically projecting ribs are provided on a surface side of the block main body. The rib is provided with a bulging part that protrudes in the shape of a flange on the left and right sides at the projecting end.
A dovetail groove is formed between the protruding ribs and
Ants between the vertical ribs of adjacent blocks
Revetment concrete block with grooved grooves formed