JP2912583B2 - Concrete block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a concrete block used for a natural construction method such as a seawall or a retaining wall.

[0002]

2. Description of the Related Art After the war, the "double-sided construction method", in which both sides are covered with concrete and blocks to strengthen the seawalls of rivers and prevent flooding, and the "three-sided construction method", in which the riverbed is also covered with concrete. In large and small irrigation canals and drainage channels, large U-shaped grooves have been buried to make three sides. In addition, concrete (including mortar) upholstery, block construction of various structures, or use of concrete retaining walls are used in the construction of seawalls for the prevention of hillside collapse and protection of lakes and marshes on the side of mountain roads. However, all of these construction methods are methods of completely covering the construction site with so-called concrete. It is undeniable that these construction methods had the effect of preventing flooding, seawall protection, or prevention of hillside collapse, but on the other side they caused natural destruction that destroyed rivers and hillside ecosystems. Is also reality.

[0003]

SUMMARY OF THE INVENTION In view of the above-mentioned prior art (construction method), the present invention relates to revetment work for large and medium and small rivers and irrigation drainage works, and revetment work and retaining wall work for hillside and other retaining wall construction. It has the effect of sufficiently satisfying the purpose of the construction, and does not destroy the existing natural ecosystem, and when renovating the place where nature was destroyed by the conventional construction method, the previous ecosystem (natural) In order to realize a revetment or a retaining wall that can regain the concrete, a concrete block for that purpose is provided here.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a concrete block to be piled and constructed for the purpose of seawall protection and hillside collapse prevention work, wherein the block is formed by combining a block head having a concave pot portion, a block root, and these two parts. And a body portion that integrally connects the blocks, and the block head is formed so that a space can be formed between the upper and lower heads and between the left and right blocks at the time of construction, and further, the head of the block and the block root are formed. A drain pipe installation groove is provided on both sides in a forward inclined shape. A concrete block of this configuration is placed in a pot at the block head, soil is sown, grass seeds are sown, and a drain pipe installation groove is provided. The above-mentioned problems have been solved by arranging drainage pipes and performing seawall construction and retaining wall construction so that rainwater and infiltration water can be irrigated in each pot portion.

[0005]

1 to 3 show an embodiment of a concrete block according to the present invention, and FIG. 4 is an explanatory side view of an embodiment. As shown in the drawings, the concrete block of the present invention comprises a block head 2 and a block root 3 each having a concave pot portion 1 having an appropriate width and depth, and a body for integrally connecting the two. The block head 2 is formed in the block head 2 with a concave and flat trapezoidal shape having an appropriate width and depth, and the upper surface of both sides of the part 1 is directed forward. The space forming slope 5 is formed by inclining at an appropriate space forming oblique angle α, and the front portion 8 of the pot head 2 has an appropriate thickness 19 and its upper surface 20 is formed to be inclined rearward. Further, the pot portion 1 is formed in a planar trapezoidal shape with its side portions 6 having a narrower forming width 7 toward the front from the base portion (FIGS. 1 and 2).

The block root 3 has an appropriate thickness and the same width and height as the block head 2, and the body 4 has an appropriate length and width for the block head 2 and the block root. 3 are connected integrally, and the upper part thereof is 3
The notch 9 is formed at a depth of about one-half. A drain pipe mounting groove 10 is formed on both sides of the block head 2 and the block root 3 so as to be inclined forward in a semicircular cross section.

The above embodiment is a concrete block having the above-described structure. However, when the block is used to construct a seawall or the like, for example, as shown in FIG. I did the foundation work, and this foundation 1
From above, the concrete block 13 of the present invention is laid for embankment. At this time, the concrete block according to the present invention is preferably used from the riverbed 11 to the water surface, and therefore also in the underwater part. In addition, pot part 1 at the same time as block construction
The soil 14 is put therein, and seeds of grasses and vines, such as insects, are sown. Of course, seeding may be performed at a later date. When constructing the revetment, concrete is put into the notch 9 to connect and fix the upper, lower, left and right blocks. At this time, arranging the horizontal streaks enhances the strength. In addition, it is customary to arrange the blocks in a checkerboard pattern as shown in FIG. 5.
5 is mounted so that the front drain port faces right above the pot portion 1 of the lower block 13. Of course, the water intake (inlet) should be directed to the split stone or gravel section 16 installed at the rear of the seawall (or retaining wall).

When the concrete block 13 of the present invention is used for revetment work on rivers or retaining walls such as hillsides, the upper surface of the pot side 6 becomes the space forming slope 5 which slopes forward at an oblique angle α. The vertical natural formation space 17 is formed between the upper and lower portions of the individual blocks that have been stacked and constructed,
Further, in the water, a place where aquatic plants grow is provided in the pot portion 1, and aquatic insects and aquatic small animals also live and multiply. From the drain pipe 15, infiltration water, rain water, and the like on the back of the revetment wall or the back of the retaining wall are drained and irrigated into the pot portion 1. Since the width of the block head 2 is reduced toward the front, a left-right natural formation space 18 is formed between the left and right blocks.

[0009]

As described above, the concrete according to the present invention has the following features.
The pot block is formed with a pot portion on the block head, and when soil is put into the portion and seeded with a preferred grass species such as terrestrial insects or vine seeds, green is regained in the portion, and it is recovered. If it is a vine plant, the green will spread over the entire seawall and retaining wall,
Inhabitants of small insects and small animals are expected here, and the effect of restoring the destroyed nature, which is the conventional full-face concrete covering, is exhibited. Naturally, the upper surface 5 of the pot side portion 6 forms a space forming slope with a space forming oblique angle α to form a vertical natural forming space 17. Since the natural formation space 18 is formed, the plants grown in the pot portion can receive sufficient sunlight and have good ventilation, and the revetment wall and the retaining wall can avoid strong wind and rain. Because of this structure, the plants that grow in the pot also have a good habitat for insects and the like. In the underwater area, it is also effective in breeding insects and fish that live in the water. Next is watering the plants that grew in the pot,
Since the concrete block of the present invention has a structure in which the drain port of each drain pipe is opened directly above the pot portion, the concrete block of the concrete block according to the present invention can be used for water which has infiltrated into the ground or has high groundwater. Water in the soil not only flows to the pot through drainage pipes, but also the revetment walls and hillside collapse prevention retaining walls are steeply inclined to the horizontal plane and dorsally inclined. The upper surface 20 of the front part 8 is formed as a horizontal plane or a rear slope, and since the surface becomes a rear slope due to construction, most of rainwater and snowmelt water falling on the revetment surface and the retaining wall surface flows into the pot portion. Therefore, there is also an effect that the plants growing in the pot are sufficiently rehydrated and do not die. In addition, winter grasses wither, but insects and the like can be overwintered in the grasses and in the soil in the pot, avoiding snow and snow. Next, at the time of construction, it is possible to insert concrete into both sides of the trunk and into the notch to connect and fix the upper, lower, left and right concrete blocks, so that concrete blocks constituting a revetment wall or retaining wall, etc. Are constructed as a single unit and have excellent seismic resistance. Furthermore, this effect is suitable for the ground and construction site where the drainage is poor because the drain pipe is provided for each block, as shown in FIG. When the block of the present invention is used and constructed in the underwater part, it has effects such as not only prosperity of aquatic plants but also inhabitation and propagation of aquatic animals (insects and fishes). As described above, when the concrete block of the present invention is used for revetment of rivers and lakes, and when used for retaining walls such as hillsides, etc., as described above, only natural green is applied to the concrete wall. In addition, it also has an effect on the inhabitation and reproduction of small animals that live on land and in the water, so that the natural environment is not impaired.

[Brief description of the drawings]

 The drawings are explanatory diagrams showing an embodiment.

FIG. 1 is a front view.

FIG. 2 is a plan view.

FIG. 3 is a side view.

FIG. 4 is a side view of the construction revetment.

FIG. 5 is a front view of the construction revetment and shows the position of a drainage outlet.

FIG. 6 is an explanatory plan view of a single row at the time of construction, showing a left-right natural formation space.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pot part 2 Block head 3 Block root 4 Body 5 Space formation slope 6 Pot side part 7 Pot part front width 8 Head front part 9 Notch part 10 Drainage pipe mounting groove 11 River bottom 12 Revetment foundation 13 (Book Invention) Concrete block 14 Soil 15 Drainage pipe 16 Split rock and gravel part 17 Vertical natural formation space 18 Left and right natural formation space 19 Thickness of pot front part 20 Top surface of front part of head 21 Casting concrete 22 Greening grass etc. α space formation oblique angle

Claims (3)

(57) [Claims] In a concrete block, said block is composed of a block head, a block root and a trunk, the block head and the block root are integrally connected by a trunk, and a concave pot is formed on the block head. In addition to forming a notch, the upper surface on both sides of the block is formed with a notch such that an appropriate space is created between the upper and lower block heads when the blocks are piled up, and both sides of the block root and the block head are formed. A concrete block in which a drain pipe groove having a semicircular cross section is formed with an appropriate forward inclination angle. 2. The upper surface of both sides of the pot portion is inclined forward at an appropriate space forming angle to form a space forming slope, and a vertical natural forming space is formed between the upper and lower blocks by stacking the blocks. 2. The concrete block according to claim 1, wherein the concrete block is configured as follows. 3. The front upper surface of the block head is formed as a flat surface or an inclined back surface, and both side portions of the pot portion are narrowed toward the front from a base portion thereof, and the left and right blocks which are adjacent to each other when laminating and mounting are formed. 3. The concrete block according to claim 1, wherein a left and right natural forming space is formed between the blocks.