JPH0733652B2 - Revetment method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Use) The present invention relates to a seawall construction method.

(Prior Art) In the conventional seawall construction method, the slope surrounded by the concrete manufacturing frame is filled with soil or soil mixed with seeds to veget the slope.

(Problems to be Solved by the Invention) According to the above-mentioned conventional construction method, the concrete surface is exposed in the voids between the vegetation, causing a sense of discomfort, spoiling the landscape, and having no artificial and natural revetment taste.

Further, since the roughness of the concrete is small, water rapidly flows on the concrete surface and collides with the soil, so that the sand is easily washed away.

Further, the rocks cause the abrasion and damage of the concrete.

Furthermore, concrete has high heat conductivity due to sunlight,
The soil within the legal framework was dried, and there was an adverse effect such as plant death due to temperature rise.

The present invention has been proposed in view of the problems of the above-mentioned prior art, and the object thereof is to construct a strong revetment close to nature without damaging the natural landscape with a simple configuration. The point is to provide the revetment method.

(Means for Solving the Problem) In order to achieve the above object, the seawall construction method according to the present invention is
At the upper end of each frame of the rectangular frame concrete block, a seawall block with a natural stone for soil collapse prevention that is integrally molded so as to project from the concrete surface, and a projection for maintaining spacing is provided on the outer peripheral surface Is laid vertically and horizontally, and soil or soil mixed with seeds is filled up to the upper end of the natural stone to construct a revetment, and the surface of the revetment is landscaped.

(Operation) According to the present invention, as described above, a natural stone is integrally formed on the upper end of each frame piece of the rectangular frame concrete block so as to project from the concrete surface to form a seawall block. The blocks are laid vertically and horizontally on the slope, and the soil or seeds are mixed into the rectangular frame concrete that constitutes the main body of each revetment block, up to the upper end of the natural stone protruding from the upper surface of the frame. A natural revetment whose surface is covered only with plants and natural stones can be constructed by filling the soil with vegetation and vegetating the surface of the revetment.

Further, since the natural stone on the upper end surface of the revetment block arranged on the revetment surface has a surface roughness larger than that of concrete, less soil is scoured around the block and less soil is washed away.

Furthermore, natural stones on the revetment surface have lower heat conductivity due to sunshine than concrete, prevent adverse effects on plants, plants easily grow, and prevent soil from sucking out because it covers the soil surface quickly. be able to.

Furthermore, since the surface of the revetment is covered with natural stone, it is highly resistant to abrasion due to boulders and has great durability.

Further, according to the present invention, since the projections for maintaining the distance are provided on the outer peripheral surface of the concrete frame block, when the block is laid vertically and horizontally on the slope, joints are formed between the adjacent concrete frame blocks. Since the portion is formed, the frame concrete block is integrally joined by injecting mortar into the joint portion.

(Examples) The present invention will be described below with reference to illustrated examples.

(A) is a revetment block, which is formed by integrally molding natural stone (2) on the upper end of each frame piece of rectangular frame concrete (1) so as to project from the concrete surface.

In the figure, (3) is a space-holding projection protruding from the outer peripheral surface of the frame concrete (1), and when the revetment block (A) is laid, a joint portion is provided between adjacent blocks (A). Are formed.

Thus, the revetment block (A) is laid longitudinally and laterally on the revetment slope, and the mortar (4) is formed on the joint formed between the adjacent revetment blocks (A) via the gap maintaining projections (3). ) Is injected to join the blocks (A) together.
Then, in the concrete frame (1) in each block (A), soil or soil (5) mixed with seeds is filled up to the upper end of the natural stone (2) to construct a revetment. The surface is covered with plant (B).

A woven or non-woven fabric (6) is laid on the lower surface of the building block (A) to prevent the revetment from being sucked out.

Also, because there is always a flow below the normal water level,
In the same part, the same outer shape as the revetment block (A),
On the surface of a rectangular concrete block (7) having dimensions, a revetment block (A ') in which natural stone (8) is integrally molded is laid, and is made continuous with the revetment block (A) to provide a revetment. The above-mentioned revetment block (A) in which natural stones (2) are integrally molded on the upper surface of the frame concrete block (1) for the part that seems to be a revetment that is located above the horizontal position so that no weak points are formed The block (A) is filled with the soil (5) up to the upper end of the natural stone (2), and the front of the revetment is covered with natural stone and plants to prevent the concrete from being exposed on the surface. It constitutes a beautiful natural revetment.

(Effect of the invention) According to the present invention, as described above, at the upper end of each frame piece of the rectangular frame concrete block, using a seawall block integrally molded to project natural stone from the concrete surface, By laying the block in the vertical and horizontal directions and filling the soil to the upper end of the natural stone or soil mixed with seeds, the surface is covered with natural stone and plants so that the concrete part is not exposed It is possible to construct a revetment that provides a good environment for an ecosystem that has been reconstructed in a state close to nature.

Since the concrete block constituting the revetment constructed by the method of the present invention is a rectangular frame,
It has stability against running water, prevents scouring and partial collapse of the surface, reduces internal lift, and improves the stability of revetments.

In addition, the seawall constructed by the method of the present invention has natural stones arranged on the surface, so that the surface roughness is larger than that of concrete, the scouring of the surrounding soil is reduced, and the loss of the internal soil is small. .

Furthermore, the natural stones on the surface of the revetment have lower heat conductivity due to sunlight compared to concrete, so there is little adverse effect on the plants, the plants easily grow, and the plants cover the surface of the soil quickly, so the soil is sucked out. Can be suppressed,
In addition, since the surface is covered with natural stone, which has a higher strength than concrete, it is highly resistant to abrasion due to rolling stones and has a high durability.

Further, according to the present invention, since the projections for spacing are projected on the outer peripheral surface of the frame concrete block, when the blocks are vertically and horizontally attached to the slope, joints are provided between the adjacent frame concrete blocks. Is formed, and the frame concrete blocks are integrally joined by injecting mortar into the joints.

Further, according to the present invention, the revetment constituent member is precast, so that the construction is simple and the construction cost is reduced.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a seawall constructed by the seawall construction method according to the present invention, FIG. 2 is a perspective view of the seawall block, and FIG. 3 is a perspective view showing a laid state of the seawall block. (A) (A ') …… Revetment block, (B) …… Plant,
(1) …… Frame concrete, (2) …… Natural stone,
(3) ... protrusions for maintaining spacing, (5) ... soil mixed with soil or seeds, (7) ... concrete block, (8)
...... Natural stone.

Claims (1)

[Claims] 1. A quadrangular frame concrete block is integrally molded at the upper end of each frame piece so as to prevent soil collapse and has a natural stone projecting from the concrete surface, and an outer peripheral surface is provided with a projection for maintaining a gap. Lay the revetment block vertically and horizontally on the slope,
A revetment construction method characterized by constructing a revetment by filling soil or soil mixed with seeds up to the upper end of the natural stone, and observing the surface of the revetment.