JP3230400B2 - Concrete block for greening - 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 greening.

[0002]

2. Description of the Related Art In the case of a retaining wall type in which blocks are stacked in a connected form, it is difficult to green the surface. However, as shown in FIG. There is a method in which a pot 2 for planting is formed using the arched shape in 1, and the pot 2 is filled with soil to plant a tree 3.

[0003]

However, the pot 2 is a special place formed only in a part of the block 1, and planting is limited to the pot 2, so that the entire retaining wall is greened. It is very difficult.

An object of the present invention is to solve the above-mentioned disadvantages of the prior art, to make it possible to easily green the entire surface even on a steep retaining wall, and to contribute to the stability of the ground due to its excellent drainage properties. It is an object of the present invention to provide a concrete block for greening which can be effectively supplied as a quality-controlled secondary product block.

[0005]

According to the present invention, in order to achieve the above object, first, an intermediate layer is formed of ordinary concrete, and a front layer and a rear layer of the intermediate layer are formed of porous concrete. Secondly, a concave part was formed in the center of the front layer to reach the surface of the intermediate layer. Second, the intermediate layer was composed of ordinary concrete, and the front and rear layers of the intermediate layer were composed of porous concrete. And a concave portion reaching the rear layer portion in the center of the front layer portion and the intermediate layer portion, and thirdly, an engagement concave portion or an engagement projection formed in the intermediate layer portion on the upper surface and the lower surface. It is.

[0006]

According to the first aspect of the present invention, the insufficient strength of the porous concrete alone can be compensated for by the ordinary concrete constituting the intermediate layer, and the seeds and fertilizer are filled in the voids of the porous concrete constituting the front layer. If plant growth materials such as organic materials and soil are injected, the plant root system penetrates into the porous concrete and proliferates. Since the entire front layer can be greened, the entire surface can be greened even on a steep retaining wall.

Although the front layer is an exposed portion, it does not easily become hot even when exposed to direct sunlight or the like, as compared with the case where the concrete is normally exposed. Further, in the front layer portion, effective use of water becomes possible by rainwater moving in the gap.

On the other hand, the porous concrete in the rear layer, which is bonded to the ground surface, plays a role similar to a drainage sheet because of its water permeability, and can prevent erosion of the ground surface, so that the pore water pressure acts. It can be applied to water slopes. Roots and the like can be removed on the porous concrete side of the rear layer.

[0009] In addition, a more effective greening can be expected by filling earth and sand or a plant growth base material into the concave portion reaching the surface of the intermediate layer formed at the center of the front layer.

According to the second aspect of the present invention, it is the same as the first aspect of the present invention, but it is possible to secure a larger recess for filling with earth and sand or a plant growth base material.

According to the third aspect of the present invention, it is possible to stably stack the upper and lower parts by coupling the engaging recesses and the engaging protrusions, and the engaging recesses and the engaging protrusions are formed in the intermediate layer portion. Since it is formed on a portion of ordinary concrete, even a relatively small one can be made robust and hard to break.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a longitudinal sectional side view of a stacked state showing a first embodiment of a greening concrete block of the present invention.

As shown in FIGS. 2 to 5, one block 4 has an intermediate layer 5 made of ordinary concrete, and a front layer 6 having a constant thickness and a rear layer provided so as to sandwich the intermediate layer 5. The layer 7 was made of porous concrete.

On the upper surface of the block 4, a hook-shaped engaging projection 8 is formed on the ordinary concrete portion of the intermediate layer portion 5,
Immediately below the lower surface, a hook-shaped engaging recess 9 into which the engaging protrusion 8 is fitted was formed. The shape of the engagement projection 8 and the engagement recess 9 may be any of a square and a triangle.
The engagement protrusion 8 may be provided on the lower surface, and the engagement recess 9 may be provided on the upper surface.

Further, a through-hole 10 penetrating vertically through the intermediate layer 5 is formed on the side of the engagement projection 8 and the engagement recess 9. The through hole 10 is used for inserting a reinforcing bar, a steel rod for prestressing, and a steel wire. It was taken.

The blocks 4 are stacked on the upper and lower tiers so that the engaging projections 8 and the engaging recesses 9 are fitted from the bottom of the ground, and are arranged side by side. Although the connection of these upper and lower blocks 4 is not shown in the drawing, a reinforcing bar or the like is inserted into the through hole 10 and the through hole 10 is grouted with mortar or the like.
Further, a prestress may be applied by inserting a steel rod or steel wire for prestress.

The rear layer portion 7 of the arranged blocks 4 is joined to the ground surface, but is fixed to the ground with a ground anchor or a rock bolt, so that the soil retention, the stability of the ground, the road retaining wall,
Can be used for many applications such as housing-related retaining walls.

If the seeds, fertilizers, organic materials and the like are injected into the voids of the porous concrete constituting the front layer 6 of the block 4 before assembling, the plant root system will Invades and thrives. And the whole front layer part 6 can be greened.

As another embodiment, after assembling the block 4, a plant growing material in which seeds, fertilizer, organic materials, soil, and the like are mixed may be sprayed on the front layer 6.

In addition, in addition to the above-mentioned structure, the block 4 has a recess 11 formed in the center of the front layer 6 to reach the surface of the ordinary concrete of the intermediate layer 5.

The concave portion 11 is mainly composed of earth and sand or several kinds of organic materials serving as nutrients for plants, to which auxiliary materials are added, kneaded and filled with a press-formed plant growth base material. By doing so, more effective greening can be expected.

FIGS. 6 to 8 show a second embodiment of the present invention. In the block 4, not only the front layer portion 6 but also the center portion of the intermediate layer portion 5 is formed with a concave portion 12 reaching the rear layer portion 7. FIG. This recess 12
Also, as in the second embodiment, the main component is soil and sand or several kinds of organic materials serving as nutrients for the plant, supplementary materials are added thereto, and the kneaded and press-formed plant growth base material is filled. Since the volume is deeper and larger than the concave portion 11 in the form, a large filling amount can be secured.

[0023]

As described above, in the concrete block for greening of the present invention, the strength lacking only by the porous concrete can be compensated for by the ordinary concrete constituting the intermediate layer, and the porous concrete constituting the front layer can be compensated. A plant growing material such as seeds, fertilizer, organic material, and soil is injected into the voids, so that the entire surface can be easily greened even on a steep retaining wall.

Further, although the front layer is an exposed part, it is harder to become hot even when exposed to direct sunlight or the like as compared with the case where the concrete is normally exposed. In addition, rainwater flows through the gap in the front layer. By doing so, effective use of water becomes possible. On the other hand, the porous concrete in the rear layer is bonded to the ground surface, but because it has water permeability, it plays the same role as the drainage sheet,
Since it can prevent erosion of the ground surface, it can be applied to flooded slopes where pore water pressure acts.

[Brief description of the drawings]

FIG. 1 is a first concrete block for greening of the present invention.
It is a longitudinal section side view of the piled state which shows an Example.

FIG. 2 is a first concrete block for greening of the present invention.
It is a front view showing an example.

FIG. 3 is a first concrete block for greening of the present invention.
It is a side view which shows an Example.

FIG. 4 is a first concrete block for greening of the present invention.
It is a top view showing an example.

FIG. 5 is a first concrete block for greening of the present invention.
It is a bottom view which shows an Example.

FIG. 6 is a second concrete block for greening of the present invention.
It is a front view showing an example.

FIG. 7 is a second concrete block for greening of the present invention.
It is a top view showing an example.

FIG. 8 is a second concrete block for greening of the present invention.
It is a bottom view which shows an Example.

FIG. 9 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Block 2 ... Pot 3 ... Tree 4 ... Block 5 ... Middle layer part 6 ... Front layer part 7 ... Rear layer part 8 ... Engagement protrusion 9 ... Engagement recessed part 10 ... Through-hole 11,12 ... Concave part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-346473 (JP, A) JP-A-6-257162 (JP, A) JP-A-4-146330 (JP, A) 11806 (JP, U) Shokai Sho 53-85802 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02D 29/02 311 E02D 29/02 302

Claims (3)

(57) [Claims] 1. The intermediate layer is made of ordinary concrete,
A concrete block for greening, wherein the front and rear layers of the intermediate layer are made of porous concrete, and a recess is formed in the center of the front layer to reach the surface of the intermediate layer. 2. The intermediate layer is made of ordinary concrete,
A concrete block for greening, characterized in that a front layer and a rear layer of the intermediate layer are made of porous concrete, and a concave portion is formed in the center of the front layer and the middle layer to reach the rear layer. 3. The concrete block for greening according to claim 1, wherein an engagement recess or an engagement protrusion is formed in the intermediate layer on the upper surface and the lower surface.