JPS6340881B2 - - Google Patents

Description

[Detailed Description of the Invention] Object of the Invention (a) Industrial Application Field The present invention relates to a fish nest block, which is constructed in the submerged portion of a seawall block to provide a cavity for fish to live in. The purpose is to

b. Prior Art Although the front surface of conventional seawall blocks has some unevenness, there are no spaces for fish to enter, and when these blocks are constructed, the submerged part is formed continuously on a substantially flat wall surface.

c. Problems to be solved by the invention Since the submerged part of the seawall block is formed into a nearly flat continuous wall surface, the speed of the flowing water increases and the fish have no place to take shelter and are washed downstream, making it difficult for them to live there. I can't.

Structure of the Invention (a) Means for Solving Problems Two rectangular walls are integrally erected on the upper surface of a rectangular substrate to form a square shape when viewed from the front, and the butt end at the rear end of the rectangular wall The above-mentioned problem was solved by installing a rear wall across the area to create a space for fish to live in.

b. Effects and Embodiments Below, embodiments of the present invention will be described in detail with reference to the drawings.As shown in FIGS. 1 to 5, the bottom plate 2 is inserted from the lower side of the front surface 1, which is formed into a concave shape by cutting out the central part. They are integrally arranged in an L-shape, and behind the front surface 1, two rectangular wall supports 3, 3 are erected in parallel on the bottom plate 2.
A rear wall 4 is provided continuously between the buttocks at the rear end, and the rear wall 4
A fish nest block A is formed in which a space 5 surrounded by 3 and 3 is used as a habitat for fish.

Figures 6 to 8 show a flat plate-shaped top block B whose front edge is bent into a square shape, and this top block B is installed at the top of the seawall. Figures 9 to 11
As shown in the figure, from the lower side of the flat front surface 9 to the bottom plate 1
0 are integrally arranged in a row, and behind the front surface 9, two rectangular wall supports 11, 11 are erected on the bottom plate 10 in a direction perpendicular to the front surface 9 to form a vegetation block C. As shown in FIGS. 12 to 15, another vegetation block C' is formed in which two retainers 13, 13 are erected in parallel from the bottom plate 12, and as shown in FIG. 17 and 18, the seawall construction is carried out by arranging fish nest blocks C in a row. As another example of fish nest blocks, As shown in Figs. 19 to 21, two rectangular wall braces 15, 15 are erected in parallel on the bottom plate 16 from the side edges thereof, and the rear end of each brace 15, 15 is A rear wall 17 extending between the buttocks and having the same length as the width of the bottom plate 16.
Another fish nest block having a cavity 18 surrounded by retainers 15, 15 and a rear wall 17.
Figures 22 to 24 show a modification of the vegetation block C' in which the bottom plate 12 is made slightly thicker, and Figures 25 to 27 show a stacked block D. On the back of the tortoiseshell-shaped front surface 19, retainers 21, 21 are set up in parallel from both sides of the bottom plate 20, and FIGS. 28 to 30 show another top block B', and FIGS. In Figure 32, fish nest blocks A' are arranged in a row in the submerged area, a vegetation block D is placed above the fish nest block A' in the above water area, a vegetation block C' is placed above the vegetation block D, and all vegetation blocks are placed in a row. The revetment work will be carried out by constructing each crown block B' on top of C'.

Effects of the Invention By constructing the desired number of fish nest blocks A or A' in the submerged part, and building the desired number of stages of vegetation blocks C or C' in the above-water part with or without intervening blocks D, a solid sea wall can be constructed. Fish nest block A
The spaces 5 and 18 in fish nest block A' are large and have wide openings, making them convenient for fish to live in while avoiding the rapids. By filling soil and growing plants, the seawall becomes green, restoring the nature that was once damaged by the seawall construction, and allowing fish and mixed insects to live there.

As described above, the present invention is an excellent and useful invention that has a robust structure, is easy to construct, and is easy to manufacture.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the fish nest block according to the present invention, FIG. 2 is a plan view of the same, FIG. Figure 5 is a sectional view taken along line B-B, Figure 6 is a front view of the top block, Figure 7 is a plan view of the same, Figure 8 is a left side view of the same, Figure 9 is a front view of the vegetation block, and Figure 10. is a left side view of the same, FIG. 11 is a plan view of the same, FIG. 12 is a front view of another vegetation block, FIG. 13 is a plan view of the same,
Fig. 14 is a left side view of the same, Fig. 15 is a sectional view taken along line A-A in Fig. 12, Fig. 16 is a left side view of another vegetation block, and Fig. 17 is a seawall construction work by constructing fish nest blocks and vegetation blocks. Fig. 18 is a partially cutaway front view showing the state in which the construction has been completed.
19 is a front view showing another embodiment of the fish nest block, FIG. 20 is a plan view of the same, FIG. 21 is a left side view of the same, and FIG. 22 is a front view showing another vegetation block. Figure 23 is a plan view of the same, Figure 24 is a left side view of the same, Figure 25 is a front view showing stacking blocks, and Figure 2
Figure 6 is the same left side view, Figure 27 is the same plan view, and Figure 28 is the same left side view.
The figure is a front view showing another top block, Figure 29 is a plan view of the same, Figure 30 is a left side view of the same, and Figure 31 is a state where fish nest blocks, pile blocks and vegetation blocks have been constructed and bank protection work has been carried out. FIG. 32 is a sectional view taken along line AA in FIG. 31. 1...front, 2,16...bottom, 3,15...
Retainer, 4, 17... Rear wall, 5, 18... Blank space, A,
A′...Fish nest block.

Claims (1)

[Claims] 1 Two rectangular walls are integrally erected on the upper surface of a rectangular substrate to form a rectangular shape when viewed from the front, and a rear wall is provided across the rear end of the rectangular walls to create a space where fish can live. A fish nest block that is characterized by the fact that it has been installed.