JP4113684B2 - Fish nest block and environmental symbiotic retaining wall using this fish nest block - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fish nest block mainly used for revetment of rivers, coasts, lakes and the like, and an environmentally symbiotic retaining wall using the fish nest block.
[0002]
[Prior art]
Conventionally, a rectangular bank-shaped iron wire fence or a box-shaped concrete block filled with filling stones is used by appropriately stacking a river bank, a coastal wall, a lake or the like.
[0003]
However, in the case of a rectangular parallelepiped iron wire rod filled with filling stones, the iron wire rod is often conspicuous and the landscape is impaired.
[0004]
Also, in the case of a box-shaped concrete block filled with filling stones, in the case of a concrete block provided with a bottom plate, the aquatic organisms and fish cannot move due to the concrete block, and the organisms inhabit and grow. There was a problem that the environment deteriorated.
[0005]
In addition, in the conventional symbiotic retaining wall, the combination of blocks suitable for inhabiting aquatic organisms such as underwater fish and blocks suitable for the growth of plants on the water and the habitat of small animals such as insects There wasn't.
[0006]
[Problems to be solved by the invention]
The present invention solves the problems of the above-mentioned rectangular parallelepiped iron wire cage and box-shaped concrete block, and even if it is a box-shaped concrete block, the fish-nest block in which movement of aquatic organisms, fish, etc. is not hindered and this fish nest An environmentally symbiotic retaining wall using blocks is provided.
[0007]
[Means for Solving the Problems]
The fish nest block according to claim 1 of the present invention is a fish nest block comprising a hollow block having a front wall, a rear wall, left and right side walls, and a bottom plate, the rear portion of the bottom plate being opened, and the upper edge of the front wall being made a-outs outright been partially removed, small through hole than the notch is made the first opening is formed in the front wall, when the block is made as piled up by retaining wall The notch is a second opening that communicates with the hollow interior, and fishes of different sizes can enter the block through the first opening and the second opening. When the retaining wall is formed by stacking on the slope, many kinds of fish can nest, so the underwater environment is suitably maintained.
[0008]
In the fish nest block according to the first aspect of the present invention, the front wall is smaller than the rear wall, and left and right side walls are provided from the left and right ends of the front wall to the rear wall. Protrusions are provided on the front outer surfaces of the lower left and right side walls at intervals from the rear wall. When this block is connected to the left and right, Except for the wall formed by the protrusions, the rear wall and the side wall are formed so as to form a hollow portion whose upper and lower sides and front surface are opened in a substantially U shape in plan view . A third opening is formed except for the wall formed by the protrusion provided at the front part, and a large fish can enter through this third opening. Water flow in normal times Given change in, preventing the accumulation of water in the block.
[0009]
The fish nest block according to claim 2 of the present invention has a second engaging portion in which the first engaging portion is formed at the upper end portion of the left and right side walls and the lower end portion of the left and right side walls is engaged with the first engaging portion. When the environmentally symbiotic retaining wall block is stacked, the first engaging portion and the second engaging portion formed at the upper and lower end portions of the side wall are engaged. Therefore, the upper and lower retaining wall blocks are not easily displaced.
[0010]
The environmentally symbiotic retaining wall according to claim 3 of the present invention has a first engaging portion formed at the upper end portion of the left and right side walls and a second engaging portion with the lower end portion of the left and right side walls. An ecological symbiotic retaining wall in which the fish nest block according to claim 2 is formed in an appropriate number of stages and a retaining wall block is stacked on the upper part via a connection block. An engagement portion that engages with the second engagement portion is provided on the lower surface of the block, and a connection portion for connecting the retaining wall block is provided on the upper surface of the block. Since different types of retaining wall blocks can be stacked on top of each other, it is possible to easily form retaining walls according to the installation location, and suitable for habitat of aquatic organisms such as fish in the water and growth of plants on the water, Use a combination of suitable blocks for insects and other habits Door can be, be a preferred retaining wall to more environmentally.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of a fish nest block of the present invention and an environmentally symbiotic retaining wall using the fish nest block will be described with reference to FIGS.
[0012]
In the drawing, A is a fish nest block. The fish nest block A includes a bottom plate 4 formed on the front side of a frame body including a front wall 1, a rear wall 2, and left and right side walls 3.
[0013]
The front wall 1 is a horizontally long rectangular plate, and a decoration 11 is provided on the front surface thereof, and a lateral groove 16 is formed across the left and right ends. An opening 12 is formed in the front wall 1. The opening 12 may be provided with one horizontally long or may be provided with 2 to 5 small ones. If the opening 12 is small, the opening 12 may be rectangular, circular, oval, or the like. In the case where a plurality of openings 12 are provided, they may be appropriately inclined or arranged in a staggered manner. Moreover, the upper part of the left-right side part of a front wall is notched, and when this block is continuously provided in right and left, an opening part is made.
[0014]
The rear wall 2 is a square plate, and a recess 21 is formed at the upper end of the rear wall 2.
[0015]
The side walls 3 connect the front wall 1 and the rear wall 2 and are paired on the left and right sides. The left and right side walls 3 and 3 are preferably provided inward from the left and right end portions of the rear wall 2. A trapezoidal protrusion 31 is formed on the upper end of the side wall 3 on the rear side, and a trapezoidal depression 32 is formed on the lower end of the side wall 3. An opening 33 is also formed in the side wall 3. Further, a protrusion 14 is provided at the front part of the lower end of the side wall. When this block is connected to the left and right, a large cavity is formed from the rear wall 2 and the side wall 3 and is provided at the front part of the cavity. A third opening 15 is formed except for the wall formed by the formed projection 14, and large fish can enter through the third opening 15, and the flow velocity to the inside of the block by the projection 14 on the side wall during flooding In addition, the water flow is changed during normal times to prevent the water in the block A from staying.
[0016]
The bottom plate 4 is formed in front of the lower end portion of the frame body composed of the front wall 1, the rear wall 2, and the left and right side walls 3, 3. The bottom plate 4 also has an opening 41.
[0017]
The connection block 5 is a wedge-shaped flat plate as viewed from the side, and a decoration 54 is provided on the front surface, and a groove 52 corresponding to a protrusion provided on the side wall of the lower block is formed on the lower surface to form an engaging portion. A concave portion 51 for holding concrete or cement mortar is formed on the upper surface to be a connecting portion, and a reinforcing bar hole 53 for inserting a reinforcing bar is provided in the concave portion 51. Also, semicircular grooves are formed on the left and right edges, and when the connecting block 5 is connected to the left and right, an insertion hole is formed.
[0018]
Next, examples of the present invention will be described. The block A is composed of a bottom plate 4 formed on the front side of a frame body including a front wall 1, a rear wall 2, and left and right side walls 3, and the dimensions thereof are about 998 mm in width, 500 mm in height, and about 600 mm in depth. The front wall 1 is provided with two openings 12 having a vertical width of 70 mm and a horizontal width of 90 mm, and the upper portion is cut away to form a cutout portion 13, and a decoration 11 is formed on the surface, and the left and right end portions are formed. A transverse groove 16 having a width of 70 mm and a depth of 30 mm is formed. The lateral groove 16 facilitates movement of small animals such as sea bream and shrimp, and facilitates entry into the block from the opening.
[0019]
The left and right side walls 3, 3 are provided approximately 150 mm inward from the left and right end portions of the rear wall 2, and a trapezoidal protrusion having a bottom side of 140 mm, an upper side of 120 mm, and a height of 38 mm at the upper end of the side wall 3 31 is formed, and a trapezoidal depression 32 having a base of 145 mm, an upper side of 125 mm, and a height of 40 mm is formed at the lower end of the side wall 3 at the center. Each of the side walls 3 and 3 is also formed with one opening 33 having a width of 200 mm and a length of 125 mm. In addition, a protrusion 14 is provided in front of the lower end of the side wall. When this block is connected to the left and right, a large cavity is formed from the rear wall 2 and the side wall 3 and is provided at the front of the cavity. A third opening 15 is formed except for the wall formed by the projection 14, and large fish can enter through the third opening 15 and can enter the block from the opening 33. In addition, during flooding, the projections 14 on the side walls reduce the flow velocity into the block and change the flow of water during normal times to prevent water from staying in the block A.
[0020]
A 200 mm opening 41 is formed between the bottom plate 4 and the rear wall 2.
[0021]
A predetermined portion of the riverbank is dug deeper from the bottom of the river, and after laying foundation crushed stone D, foundation concrete E is poured, then block A filled with medium filling stone B is installed, and backfilled crushed stone C is filled behind it. Next, the second block A is stacked on the lowermost block A. At that time, the recess 32 of the second block A is fitted into the protrusion 31 of the lowermost block A. Then, back-filled crushed stone C is also filled in the rear surface of the second block A. After the blocks A are stacked close to the water surface in this way, on the water surface, an environmentally symbiotic block H for greening as shown in FIG. 1 and a block I having a natural stone motif as shown in FIG. 2 are stacked. . In this example, a connection block 5 is disposed between the underwater block and the water block. A groove 52 corresponding to the trapezoidal protrusion 31 provided at the upper end of the side wall of the block disposed in water is formed on the lower surface of the connecting block 5 so as to engage with the trapezoidal protrusion 31. ing. In addition, concrete is poured into the concave portion 51 on the upper surface of the connection block, and a reinforcing bar F is inserted into the insertion hole 53 to firmly connect the upper and lower blocks. Further, the inserts 22 embedded in the rear wall of the block A adjacent to the left and right are connected to each other by the connecting fitting G so that the block A is not displaced.
[0022]
【The invention's effect】
As described above in detail, the fish nest block according to claim 1 of the present invention is a fish nest block including a hollow block provided with a front wall, a rear wall, left and right side walls, and a bottom plate, and a rear portion of the bottom plate is opened. upper edge of the front wall is made with-out portion outright is partially removed, prior small through hole than the notch in the wall thereof corresponds to the first opening is drilled, retaining in this block are stacked When it is made into a wall, the notch becomes a second opening that communicates with the hollow interior, so that fish of different sizes can enter the block through the first opening and the second opening. When a retaining wall is formed by stacking on a slope such as a river, many types of fish can nest, and the underwater environment is suitably maintained.
[0023]
In the fish nest block according to the first aspect of the present invention, the front wall is smaller than the rear wall, and left and right side walls are provided from the left and right ends of the front wall to the rear wall. Protrusions are provided on the front outer surfaces of the lower left and right side walls at intervals from the rear wall. When this block is connected to the left and right, Except for the wall formed by the protrusions, the rear wall and the side wall are formed so as to form a hollow portion whose upper and lower sides and front surface are opened in a substantially U shape in plan view . A third opening is formed except for the wall formed by the protrusion provided at the front part, and a large fish can enter through this third opening. Water flow in normal times Given change in, preventing the accumulation of water in the block.
[0024]
Further, Sakanasu block of the present invention according to claim 2, wherein the first engages with the first engagement portion to the lower end of the left and right side walls with the first engagement portion on the upper end portions of the left and right side walls are formed two When the environmentally symbiotic retaining wall blocks are stacked, the first engaging portion and the second engaging portion formed on the upper and lower end portions of the side wall are engaged. The upper and lower retaining wall blocks are difficult to shift.
[0025]
In the environmentally symbiotic retaining wall according to the third aspect of the present invention, the first engaging portion is formed at the upper end portion of the left and right side walls and the lower end portion of the left and right side walls is engaged with the first engaging portion. An ecological symbiotic retaining wall in which the fish nest block according to claim 2 formed with a second engaging portion is appropriately stacked in a number of stages, and a retaining wall block is stacked on the upper part via a connection block. The lower surface of the connection block is provided with an engagement portion that engages with the second engagement portion, and the upper surface is provided with a connection portion for connecting the retaining wall block to the upper portion thereof. Since different types of retaining wall blocks can be stacked on the block, it is possible to easily form retaining walls according to the purpose and conditions of the installation location.
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view showing an example of a construction state of a fish nest block according to the present invention.
FIG. 2 is a cross-sectional view of a main part of FIG.
FIG. 3 is a partially cutaway front view showing an example of a construction state of the fish nest block of the present invention.
4 is a cross-sectional view of a main part of FIG. 3;
5A is a front view, FIG. 5B is a plan view, FIG. 5C is a side view, and FIG. 5D is a cross-sectional view showing an example of an embodiment of the fish nest block of the present invention.
6A is a front view, FIG. 6B is a plan view, and FIG. 6C is an aa sectional view showing an example of a connection block in the environmentally symbiotic retaining wall of the present invention.
[Explanation of symbols]
A Fish nest block B Filled stone C Back-filled crushed stone D Basic crushed stone E Basic concrete F Reinforcement G Connecting metal fitting H Environmentally friendly block for greening I Block with natural stone motif 1 Front wall 11 Decoration 12 Opening 13 Notch 14 Protrusion 15 Third opening 16 Horizontal groove 2 Rear wall 21 Recess 22 Insert 3 Side wall 31 Protrusion 32 Recess 33 Opening 4 Bottom plate 41 Opening 5 Connection block 51 Recess 52 Groove 53 Insertion hole 54 Decoration

Claims (3)

A fish nest block consisting of a hollow block with a front wall, a rear wall, left and right side walls, and a bottom plate, the rear portion of the bottom plate being opened, the upper edge of the front wall being partially removed to form a notch, A through hole that is smaller than the notch is formed in the wall to form a first opening. When the block is stacked to form a retaining wall, the notch communicates with the hollow interior. The first opening and the second opening allow the fish of different sizes to enter the block , and the front wall is narrower than the rear wall. Left and right side walls are provided from the left and right end portions to the rear wall, the left and right side walls are provided inward from the left and right end portions of the rear wall, and the front outer surface of the lower end of the left and right side walls is spaced from the rear wall. When this block is connected to the left and right, Fish by the wall and rear wall of the block, with the exception of the wall formed by the projections, vertical and front, characterized in that adapted cavity opening in plan view a substantially U-shape is formed Nest block. A first engaging portion is formed at the upper end portion of the left and right side walls, and a second engaging portion that engages with the first engaging portion is formed at the lower end portion of the left and right side walls. The fish nest block according to claim 1 . In claim 2 in which the second engagement portion engaged with the first engagement portion to the lower end of the left and right side walls with the first engagement portion on the upper end portions of the left and right side walls are formed, which are formed The fish nest block described above is stacked in an appropriate number of stages, and a retaining wall block is stacked on the upper part via a connection block. The bottom wall of the connection block is connected to the second engaging portion on the lower surface. An environmentally symbiotic retaining wall characterized in that a mating engaging portion is provided and a connection portion for connecting a retaining wall block is provided on the upper surface thereof.

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