JPS602260Y2 - Seawall block that doubles as a fish nest - Google Patents

Description

[Detailed description of the invention] This invention is used for constructing seawalls for rivers, lakes, etc.
This invention also relates to a seawall block that also serves as a fish nest.

Conventionally, this type of fish nest/revetment block has a rectangular cylindrical shape and a wide base plate 1, and has through holes 3 in both side walls 2 of the cylindrical part, as shown in Fig. 1. The revetment blocks 4, which also serve as fish nests, are usually stacked in a staggered manner to construct a revetment wall that also serves as fish nests.

In this case, since the part above the water surface does not need to serve as a fish nest, it is necessary to use a normal seawall block (for example, a main body block 10 of the present invention described later), which also has fitting recesses, protrusions, etc. at the upper and lower ends. Build by accumulating things (things you don't have).

In addition, the code|symbol 5 has shown the slope ground of a bank.

The conventional fish nest/revetment block 4 as described above has a structure as an original revetment block for covering the sloped ground;
Since the structure that forms the space part A and has the function of a fish nest is constructed as an integrated block, it is quite large and heavy, for example, several hundred pieces each, and is therefore difficult to handle. The construction work is inefficient because it cannot be piled up.

In addition, seawall blocks whose purpose is simply for seawall protection are usually
The weight is such that it can be loaded by hand.

Additionally, there were some areas where cranes and other vehicles could not access the site, making work extremely difficult.

The present invention was proposed to solve these conventional drawbacks, and is lightweight enough to be assembled by hand.
It is an object of the present invention to provide a fish nest/revetment block capable of constructing a fish nest/revetment wall in which a space that functions appropriately as a fish nest is formed.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view of the main body block 10, which has the original purpose of a seawall, and the fish nest block 20, which has the purpose of forming a fish nest, in a separated state.

In the illustrated example, the main body block 10 is formed integrally with a rectangular base part 11 and a base part 12 that protrudes in the direction of the back surface perpendicular to the surface of the base part 11. , the board part 1 is placed at the same depth h□ as shown in -.
A fitting recess 13 is formed in the thickness direction of the substrate 1, and both wall surfaces of the fitting recess 13 have locking recesses 13a, 13 each recessed in a dogleg shape in the width direction of the base plate 11.
a is formed.

Further, a convex portion 14 is formed in the center of the lower end surface 11b of the substrate portion 11, and protrudes downward with uniformly the same protrusion length h2.

The fish nest block 20 has a shape in which a top plate part 21 and a front plate part 22 are integrated in an inverted shape, and the width d1 of the top plate part 21 and the front plate part 22 is equal to the width of the fitting recess. It is formed to be slightly smaller than the width d2 of 13.

Further, near the tip of the top plate 21, on both widthwise end surfaces (side surfaces) of the top plate 21, the tip of the top plate 21 is attached to a fifth side.
As shown in Figure at b, the fitting recess 1 of the main body block 10
3, locking protrusions 21ay21a are respectively formed which fit into the locking recesses 13a on both walls of the fitting recess 13 and act as a so-called horizontally preventive stop.

The thickness H of the top plate portion 21 at the locking convex portion 21a is equal to the depth h of the fitting recess 13 of the main body block 10.
l, and the depth hl of the fitting recess 13 and the protrusion 1
The dimension is slightly smaller than the sum of the protrusion length h2 of 4, h□10h2.

Further, the lower end surface 1 of the substrate portion 11 on both sides of the convex portion 14 is
The widthwise lengths 11.1□ of each of 1b and llb are the same, and the dimension 11+1□ is designed to be slightly larger than the width d1 of the top plate portion 21.

Note that the ridgeline portion on the front side of the base plate portion 11 of the main block 10 and the ridgeline portion on the front side of the front plate portion 22 of the fish nest block 20 are both edged as clearly shown in FIGS. 3 and 4. Furthermore, the front plate part 22 of the fish nest block 20 is also edged at equal angles to form slopes 22a, and the whole is formed into a diagonal shape when viewed from the front side. .

The main body block 10 and the fish nest block 20 constructed in this manner are stacked as shown in FIGS. 5 to 7 to construct a revetment wall that also serves as a fish nest.

That is, the main block 10 is made of foundation concrete 31
They are stacked in a staggered manner so as to cover the slope of the sloped ground 32 on top. At this time, each time the main body blocks 10 are stacked one level, the tip of the top plate 21 of the fish nest block 20 is
As shown in Figures a and b and Figures 6a and b, respectively, the fish nest block 11 is installed by fitting it into the fitting recess 13 of the main block 10.

By fitting these two together, the locking recesses 13a, 13a
Since the locking convex portion 21at21a is fitted together, the fish nest block 20 is prevented from being removed from the main block 10 in the horizontal direction (front direction).

Moreover, when the main body block 10 and the fish nest block 20 are stacked one after another in this way, FIGS. 6a and 6b
As shown in FIG. 2, the lower end surfaces 11a, 11a of the substrate portion 11 are in slight surface contact with the upper surfaces of the horizontally adjacent top plate portions 21, 21, respectively, while the lower end surfaces of the convex portions 14 are located at the lower level of the main body block. The slopes 22a edged at equal angles at the four corners of the front plate part 22 are in surface contact with the upper end surface 11a of the base plate part 11 of No. 20, and the slopes 22a edged at equal angles at the four corners of the front plate part 22 are all adjacent to the edged slopes 22a of other front plate parts. They are in surface contact with each other, and as a result, a revetment wall that also serves as a fish nest is completed, as shown in the figure, where each part is geometrically related to each other and stacked up as one.

Note that in the portion above the water surface, only the main body blocks 10 are stacked.

In Figure 7, 33 is the basic chestnut stone, 34 is the uragomi chestnut stone, 3
5 indicates concrete with a body.

In the construction work of this fish nest/revetment wall, both the main block 10 and the fish nest block 20 can be carried by one person (one person or two or three people), so no crane or the like is used. can be hand-loaded.

In the constructed fish nest and revetment wall, space openings that function as fish nests are formed at each stage by the inverted-shaped fish nest blocks 20, and communicate with each other in the direction of ice flow. On the front side, a fish-handling donkey is formed between the fish nest blocks 20 that are adjacent to each other in the upper and lower and left and right directions, and the upper and lower fish nest blocks 20 also communicate with each other. free entry and exit of
It is also possible to swim freely within the fish nest, and it effectively functions as a fish nest.

In the embodiment, locking recesses 13a, 13a are formed on both wall surfaces of the fitting recess 13, and a locking convex portion 21a is provided on the top plate portion 21 side to engage with the locking recesses.

21a, but in contrast to this, as shown in FIG. Recesses 41, 41 may be formed.

Further, the lower end surface of the substrate portion 11 may be made flush with the convex portion 14, and the depth hl of the fitting recess 13 and the thickness H of the top plate portion 21 may be made the same size.

As detailed above, the fish nest and revetment block according to the present invention is divided into the main block and the fish nest block, so the weight of each individual block is reduced accordingly, and therefore it can be used without using a crane or the like. Not only is it extremely efficient because the work can be done by hand, but each part of each block is geometrically related to each other, making it appear as if they were integrated. Since the space for the nest is simply formed by the fish nest blocks forming an inverted shape, the structure for forming the fish nest space is extremely simple and efficient.
In particular, the weight of the fish nest block has been reduced.

In addition, the constructed fish nest and revetment wall has a structure that allows fish to freely enter and exit the fish nest and swim within the fish nest, so it functions well as a fish nest itself. Since they are connected along the direction of water flow, they have various excellent effects, such as preventing quicksand from accumulating.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional fish nest and revetment block, Figs. 2 to 7 show an embodiment of the present invention, Fig. 2 is a perspective view, and Fig. 3 is a stop surface of the main block. Figure 4 is a front view of the fish nest block, Figures 5 a and b are a plan view and sectional view of the main body block and fish nest block combined, and Figure 6 a and b are the stacked state. Figure 7 is a cross-sectional view of the constructed fish nest and revetment wall;
FIG. 8 is a plan view similar to FIG. 5a showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 10...Main block, 11...Base part, 11a...Top end surface, llb...Bottom end surface, 12...Base part, 13... Fitting recess, 13a... Locking recess, 14...
Convex portion, 20...Fish nest block, 21...
...Top plate part, 21a...Locking convex part, 22...
...Front plate.

Claims (1)

[Scope of utility model registration request] A main body block in which a base part is integrally formed protruding from the back side of a rectangular base plate part, and a top plate part and a front plate part formed in a width narrower than the width of the base part of this main body block are in an inverted shape. and a fish nest block integrally formed as one set, and a fitting recess into which the front end of the front plate part of the fish nest block fits is formed in the center of the upper end surface of the base plate of the main body block. A locking recess is formed on one of the wall surface of the fitting recess and a tip end of the front plate portion corresponding to the wall surface, and a locking convex portion that engages with the locking recess is formed on the other side. A seawall block that doubles as a fish nest.