JPS6328971Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a concrete block for constructing a seawall that has a breeding environment for insects such as fireflies, among concrete blocks used in seawall construction.

[Prior art and problems to be solved] Conventionally, in river revetment construction, a revetment wall is constructed with concrete covering the entire quay wall in order to prevent river flooding. The environment in which insects such as fireflies can grow will be destroyed. This is because, as shown in Fig. 1, conventional concrete blocks have a vertical section 3 between a horizontal surface section 1 and a horizontal back section 2, and after stacking, the concrete blocks are placed in a space 4 formed between adjacent concrete blocks. This is because since the concrete 5 is provided, there is no space for insects such as fireflies to grow.

[Technical means for solving the problem] The purpose of the present invention is to provide a concrete block that can create an environment in which insects such as fireflies can grow. In a concrete block for constructing a seawall in which concrete blocks consisting of sections are piled up and placed next to each other, the vertical section is formed into an L-shape in plan to form an L-shaped space, and the insect entrance/exit communicating with the space is horizontally connected. It is formed on the surface.

[Example] Next, an example of the present invention will be described. The example is the first and second concrete blocks 1 according to the present invention.
1 and 21, and known third and fourth concrete blocks 31 and 41 used in combination, four types of concrete blocks are piled up in a valley, and FIG. It is. The first concrete block 11 is provided with an L-shaped vertical part 14 between the horizontal surface part 12 and the horizontal back part 13, and one side surface 14a of the vertical part 14 and the horizontal surface part 12 are provided on the outside of the vertical part 14. The back surface 12a and the back surface 13a of the horizontal back surface portion 13 create a space 15 that is generally U-shaped in cross section and L-shaped in plan.
is formed. A concrete pouring notch 16 is formed on the other side of the vertical portion 14 of the horizontal back surface portion 13. Further, an insect entrance/exit 17 communicating with the space 15 is provided on the horizontal surface portion 12, and a water passage hole 18 is provided on the horizontal back surface portion 13.

FIG. 2B shows a second concrete block 21 that is bilaterally symmetrical to the first concrete block 11.
The other side surface 24a is located on the outside of the vertical portion 24 having an inverted L-shape in plan view.
and the back surface 22a of the horizontal surface portion 22 and the horizontal back surface portion 2
A space portion 25 is formed by the back surface 23a of 3 and has a generally U-shaped cross section and an inverted L-shape in plan. 26 is a concrete pouring notch formed on one side of the vertical portion 24, 27 is an insect entrance and exit, and 28 is a water hole.

FIG. 2C shows a known third concrete block 31 used in combination with the first and second concrete blocks 11 and 21 of the present invention, which includes a horizontal surface portion 32 and a horizontal back surface portion 3.
An L-shaped vertical part 34 is provided between the vertical parts 3 and 3, and the vertical part 34
A space portion 35 having a U-shaped cross section is formed inside the vertical portion 34, while the other side surface 34b of the vertical portion 34 is tapered and is open at the bottom for pouring concrete.

Figure 2 D also shows the third concrete block 3.
This is a publicly known fourth concrete block 41 that is bilaterally symmetrical to the L-shaped vertical part 44, and the inner side of the vertical part 44 is made of A space 45 having a U-shaped cross section is formed in the space 45, while one side 44b is inclined and is open at the bottom for concrete pouring.

As shown in Figures 3 and 4, a third block is placed upwards on triangular concrete block a.
By stacking the concrete blocks 31, 2nd concrete block 21, 1st concrete block 11, and 4th concrete block 41 in this order, the space 35 of the 3rd concrete block 31 and the space 25 of the 2nd concrete block 21 are separated. Insect entrances and exits 27 and 1 are connected to the space 15 of the first concrete block 11 and the space 45 of the fourth concrete block 41 on the upper surface side.
7 can form a bent habitat b for insects such as fireflies. Also, 1st to 4th concrete blocks 1
Vertical parts 14, 24, 3 of 1, 21, 31, 41
On the opposite side of 4 and 44, concrete c is poured to connect each concrete block.

[Effect of the invention] As described above, in the present invention, the vertical portion 14,
24 is formed into an L-shape in plan, and L-shaped spaces 15 and 25 are formed on the outside thereof, and the space 1
Since the insect entrances and exits 17 and 27 communicating with the seawalls 5 and 25 are formed on the horizontal surface parts 22 and 32, it is a concrete concrete block for seawalls, and a hole b for insects such as fireflies is formed. can live. Therefore, the seawall is not monotonous as shown in Figure 1, but it is possible to form a seawall that takes advantage of nature.

Insect entrances and exits 17 and 27 on the horizontal surfaces 12 and 22
By providing this, it is possible to provide a certain level of humidity to the soil within the insect habitat hole b, creating an environment suitable for insects such as fireflies.

Furthermore, since the insect habitat hole b has a shape bent from right to left, the amount of lighting etc. can be adjusted, and an excellent environment for insects can be created.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional concrete block.
Figures 2A and B are slope views of the first and second concrete blocks of the present invention seen from the back side, and Figures 2C and D are slope views of a known third concrete block used together with the first and second concrete blocks of the present invention. , FIG. 3 is a slope view of the fourth concrete block, FIG. 3 is a slope view showing the same assembled state, and FIG. 4 is a front view showing the same assembled state. 11, 21, 31, 41...1st, 2nd, 3rd, 4th
Concrete block, 12, 22...Horizontal surface part, 13, 23...Horizontal back part, 14, 24...
Vertical part, 15, 25... Space part, 17, 27...
Insect entrance/exit, 18, 28... Water hole, a... Triangular concrete block, b... Insect habitat hole, c...
...concrete with body.

Claims (1)

[Scope of utility model registration request] In a concrete block for constructing a seawall in which concrete blocks consisting of a vertical part connecting a horizontal surface part and a horizontal back part are piled up and placed next to each other, the vertical part is formed into an L-shape in plan to form an L-shaped space part. A concrete block for constructing a seawall, characterized in that an insect entrance/exit communicating with the space is formed in a horizontal surface part.