JP3587741B2 - Rooting block - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a concrete rooting block made of concrete, which is closely and vertically arranged on a water bottom of a river or a coast and provides a habitat for aquatic organisms such as fish while also preventing scouring of the water bottom.
[0002]
[Prior art]
As this kind of prior art, there is one disclosed in, for example, Japanese Utility Model Registration No. 3016551. That is, in this prior art, a block having an octagonal cross section and having a concave portion on the bottom surface is applied, and the blocks are closely and vertically and horizontally aligned to consolidate the bottom of a river or the like.
Further, each block is provided with a hole from the outer peripheral surface toward the concave portion, and the hole is used as an entrance so that the concave portion serves as a habitat for fish and the like.
[0003]
[Problems to be solved by the invention]
By the way, in order for the above-mentioned blocks to function continuously as a solidification, it is necessary to maintain the arrangement of these blocks against the water flow. For example, in the above prior art, a convex portion and a concave portion are provided on the outer periphery of a block, and these are fitted to each other in an adjacent block, so that the alignment is maintained even with a strong water flow.
[0004]
However, in such a block, since the convex portion and the concave portion must be accurately fitted on the bottom of the water, a complicated operation is required in arrangement. In addition, the protruding portion protruding from the outer periphery not only complicates the handling of the block, but also may be damaged during transportation or during construction on site.
[0005]
On the other hand, as a habitat for fish and the like, it is preferable that moss and aquatic plants are overgrown, and it is necessary to be exposed to flowing water to supply sufficient oxygen.
[0006]
However, in the above-described conventional technique, the concave portion that is to be a habitat for fish and the like is completely closed on its upper surface and the entire periphery except for the holes. For this reason, the incidence of sunlight is blocked, and moss and aquatic plants do not grow. In addition, the water in the recesses tends to stagnate, making it difficult to supply sufficient oxygen, and is not necessarily preferable as a habitat for aquatic organisms.
[0007]
Therefore, in the above-described conventional technique, it is conceivable to open the upper part of the block. However, when the upper part of the block is opened, the incidence of the sun's rays becomes too strong, which makes it unsuitable as a habitat for fish that prefer dark places such as eels and catfish.
[0008]
The present invention has been made in view of the above circumstances, and has an object to provide a rooting block capable of facilitating arrangement work on a water floor and providing a suitable habitat for aquatic organisms.
[0009]
[Means for Solving the Problems]
According to the present invention, a block main body having an octagonal cross-sectional shape that defines an adjacent space in each of the four vertical and horizontal junctions when closely aligned vertically and horizontally, and a vertical direction at the center of the block main body. to open at least on the upper surface and formed through a central opening for accommodating the boulders inside, extend radially from the central opening, the bottom surface of the block body from the site to be the substantially intermediate the height of the block body And a through hole having a predetermined inner diameter that opens to the outside of the block main body in the adjacent space and extends outward from the outer peripheral portion of the block main body and is interconnected in the adjacent space. And a connecting arm member made of high-rigidity metal, and when arranged vertically and horizontally on the water bottom of a river to be protected from scouring, the central opening accommodates cobblestone therein and receives sunlight. hand To allow the development of and aquatic plants, the through hole constitutes a root consolidated block so that the entrance of aquatic organisms through the adjacent space to the central opening with a predetermined internal diameter.
[0010]
The central opening preferably extends through the block body in the up-down direction, and is also open to the bottom surface of the block body. Further, it is preferable to lay natural stone on the upper surface of the block body. The connecting arm member extending from the block body is preferably made of a highly rigid metal.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments.
FIG. 1 to FIG. 3 show one embodiment of a block for root consolidation according to the present invention. The block 1 for root consolidation exemplified here is particularly suitable for being disposed on the bottom of a river to prevent scouring, and includes a block main body 10 formed of a concrete material.
[0012]
The block main body 10 has a rectangular cross-section in the form of an octagonal column, specifically, a columnar member having a square cross-section having one side A and four corners (parts indicated by a two-dot chain line in FIG. 2) each having a width B. It is configured by excision, and has four outer surfaces 11 for joining and four outer surfaces 12 for space. In the case of the present embodiment, the joining outer surface 11 is configured such that each width C is larger than the width D of the space outer surface 12.
[0013]
The block body 10 has a central opening 13 at the center thereof and four fish passage holes 14 around the central opening 13.
[0014]
The central opening 13 is an opening having a circular cross section, and penetrates the portion that becomes the axis of the block body 10 along the vertical direction. As is clear from the figure, the central opening 13 has a slightly smaller opening F on the bottom surface than the opening E on the upper surface, and is formed in a tapered shape so that the space therebetween is continuous.
[0015]
The fishway hole 14 is a through hole having an inner diameter G that extends radially from the inner peripheral surface of the central opening 13 and has a distal end opening to the outer surface 12 for space. Each fishway hole 14 extends along a bottom surface of the block main body 10 from a portion J which is substantially intermediate with respect to the height H of the block main body 10.
[0016]
The block main body 10 has a large number of raised portions 15 on its upper surface, and a connecting arm member 20 on each outer surface 12 for space.
[0017]
The raised portion 15 is formed by laying a large number of natural stones on the upper surface of the block body 10. Specifically, before the concrete material constituting the block main body 10 solidifies, a part of the natural stone may be buried in a position to be the upper surface, and the concrete material may be solidified as it is. The amount of protrusion of each raised portion 15 from the block body 10 may vary, but is preferably less than the maximum height K in consideration of the handleability of the block 1 for consolidation.
[0018]
The connecting arm member 20 is a high-rigidity member formed by forming a metal rod-shaped member into a U-shape, and protrudes outward from a portion below the fishway hole 14 in each outer surface 12 for space. It is set up. In this case, in the present embodiment, the connecting arm member 20 is arranged so as to be curved in a U-shape along the vertical direction. In addition, each connecting arm member 20 has a length L such that each tip end does not protrude from a region surrounded by an extension of the joining outer surface 11.
[0019]
The dimensions of typical products as an example of the above-described block 1 for root consolidation are as follows. That is, the distance A between the joining outer surfaces 11 that are parallel to each other is about 1500 mm, the width C of the joining outer surface 11 is about 792 mm, the width D of the space outer surface 12 is about 500 mm, and the upper end of the central opening 13. The inner diameter E is about 620 mm, the lower end inner diameter F is about 500 mm, the inner diameter G of the fishway hole 14 is about 90 mm, the height H of the block body 10 is about 500 mm, and the distance from the bottom of the block body 10 to the lower edge of the fishway hole 14. The distance J is about 240 mm, the maximum height K of the raised portion 15 is about 220 mm, and the amount of protrusion L of the connecting arm member 20 from the outer side surface 12 for space is about 205 mm. The weight of a product satisfying these dimensions is approximately 2000 kg. Note that these dimensions are merely examples, and other dimensions may be used.
[0020]
As shown in FIG. 4, the consolidation blocks 1 configured as described above are arranged vertically and horizontally on the water bottom of a river to be protected from scouring, with the outer joining surfaces 11 in contact with each other. At this time, according to the above-mentioned block 1 for consolidation, since the connecting arm member 20 can be used as a hanging tool, the operation for slinging the hanging wire of the crane can be performed extremely easily. become able to. In addition, if the bonding outer surfaces 11 are in contact with each other, the connecting arm member 20 contacts the other root-fixing block 1 even if the positions thereof are shifted. Nothing. Therefore, there is no possibility that the connecting arm member 20 is deformed or damaged during transportation of the block 1 or during construction on site.
[0021]
In the block 1 for consolidation thus arranged, a columnar adjacent space 30 having a square cross section surrounded by the space outer surface 12 is defined at each of the four vertical and horizontal meeting portions. The connection arm member 20 described above will be disposed on 30. Accordingly, the suspension wires can be easily removed from the root-fixing block 1 after being arranged via the adjacent space 30. Further, when the four connecting arm members 20 are connected to each other by the connecting ring 21 in the adjacent space 30, each of the root-fixing blocks 1 is connected to eight surrounding root-holding blocks via the connecting ring 21 and the connecting arm member 20. It is interconnected with the block 1 and can maintain the mutual alignment continuously even with a strong water flow, thereby preventing scouring of the water bottom.
[0022]
On the other hand, as shown in FIG. 3, for each of the root-fixing blocks 1 arranged and arranged as described above, a boulder 40 having a relatively small diameter, for example, 10 to 15 cm, is accommodated in each central opening 13. Further, a coated ball 41 having a relatively large diameter, for example, 30 to 40 cm, is arranged above the central opening 13 in order to prevent the previously stored small-diameter boulder 40 from flowing away when the water is increased. For the method of storing these cobblestones 40 and 41, for example, a fishing method using cobblestones called "Ishikura fishing method" or "eel kagura fishing method" is referred to.
[0023]
In such a block 1 for solidification, sunlight rays are appropriately incident on the inside of the central opening 13 through the gap between the various boulders 40 and 41, and moss and aquatic plants can be grown in the central opening 13. . In this case, the amount of incident sunlight can be appropriately adjusted according to the number and size of the boulders 40, 41 to be accommodated in the central opening 13, and can correspond to various aquatic organisms.
[0024]
Further, from the gap between the various boulders 40 and 41, new water, that is, sufficient oxygen is always supplied to the inside of the central opening 13, and the central opening 13 is particularly dark in eel and catfish. It is suitable as a habitat for fish or marine organisms such as river crabs. In this case, the fishway hole 14 serves as an entrance for these aquatic organisms with respect to the central opening 13 and can enter and exit through the adjacent space 30 described above. In addition, the moss grows quickly on the raised portion 15 made of natural stone disposed on the upper surface of each root consolidation block 1, and the landscape becomes more natural.
[0025]
As a result, according to the above-described block 1 for solidification, it is possible to continuously prevent scouring of a river by an easy arranging operation, and to provide a good habitat for aquatic organisms. It becomes possible.
[0026]
FIG. 5 shows a concrete example of the construction of the above-mentioned block 1 for rock embankment on a river.
[0027]
In this construction example, first, the blocks 1 for consolidation are sequentially arranged on the riverbed of the river with respect to the existing seawall 100 in the manner described above. In this case, a block 1 'for foundation type rooting as shown in FIG. 6 is applied to a portion close to the revetment block 100. That is, in the foundation type block 1 ', a foundation inclined surface 16' is provided on a part of the upper surface of the block main body 10 'so as to be perpendicular to the slope of the seawall block 100.
[0028]
Next, the fish nest block 200 and the vegetation block 300 are laid so as to cover the slope of the seawall block 100 on the basis of the base inclined surface 16 ′ of the above-mentioned base type root compaction block 1 ′. More specifically, a fish nest block 200 is laid in a part immersed in a river, while a vegetation block 300 is laid in a part exposed from the river.
[0029]
The fish nest block 200 and the vegetation block 300 are, for example, as shown in FIG.
[0030]
That is, the fish nest block 200 connects the fish nest front wall 201 and the fish nest retaining wall 202 which are arranged in parallel to each other with a pair of fish nest partition walls 203, and the fish nest front wall. In this block, a window hole 204 is provided in the center of 201 and a communication hole 205 is provided in each fish nest partition wall 203. A raised portion 206 made of natural stone is provided on the outer surface of the fish nest front wall 201 as in the case of the above-described root consolidation block 1. Further, the upper surface of the fish nest block 200 at the top is closed by the lid 207.
In this fish nest block 200, a series of water passages is formed between the fish nest front wall 201 and the fish nest retaining wall 202 through the communication hole 205, and the window hole 204 of the fish nest front wall 201 is formed. It will function as an entrance to the waterway.
[0031]
On the other hand, the vegetation block 300 is a block in which a vegetation front wall 301 and a vegetation retaining wall 302 arranged in parallel to each other are connected to each other by a pair of vegetation partition walls 303. A raised portion 304 made of natural stone is provided on the outer surface of the front wall 301 for vegetation, similarly to the fish nest block 200.
The vegetation block 300 is filled with high-quality soil 400 between the vegetation front wall 301 and the vegetation retaining wall 302, and is further planted with plants whose riverside is an optimum breeding environment.
[0032]
In the river constructed in this way, not only has the function of preventing scouring and revetment, but also presents a landscape covered with natural stones instead of the existing tasteless revetment block 100, You will be able to get a very natural environment where plants and aquatic organisms live.
[0033]
FIG. 8 shows a modification example of the above-described block 1 for rock application on a river, which differs from the example shown in FIG. 5 in the shape of the foundation type block 1 ″. That is, as shown in Fig. 9, the foundation block 1 "for foundation type rooting which is applied in this construction modification is provided with a lower foundation upper surface 16" on a part of the upper surface of the block body 10 ". In this case, the fish nest block 200 and the vegetation block 300 are sequentially stacked on the foundation upper surface 16 ″. In the gap between the existing seawall block 100 and the fish nest block 200 and the vegetation block 300, The backing material 401 is filled, and a plant that makes the riverside an optimum growing environment is also planted here.
[0034]
Even in a river constructed in this way, it not only has the function of preventing scouring and revetment, but also presents a landscape covered with natural stone instead of the existing tasteless revetment block 100, You will be able to get a very natural environment where plants and aquatic organisms live.
[0035]
In the above-described embodiment, the cross section of the block body 10 is exemplified by an octagon, but the present invention is not limited to this. The polygon may be a polygon other than an octagon or a circle as long as the adjacent space 30 can be defined at each of the meeting portions.
[0036]
In addition, although the block 1 for root consolidation is arranged on the bottom of a river, the same effect can be expected even if it is arranged on the bottom of the sea or a lake.
[0037]
Furthermore, although the connecting arm member 20 is illustrated as being curved in a U-shape, it may have another shape as long as it can be easily connected to each other. For example, a rod-shaped member that extends linearly and has a circular portion at the distal end can also be applied as the connecting arm member. In addition, in the above-described embodiment, when the connecting arm member 20 that is curved in a U-shape is applied, the connecting arm member 20 is provided so as to be curved in the vertical direction. It may be provided as follows.
[0038]
In addition, although one having four through holes 14 is illustrated, the number of through holes 14 is arbitrary. Further, the extending direction of the through hole 14 does not necessarily have to be horizontal. Although the center opening 13 has a circular cross section, the center opening 13 may have any shape in cross section. The central opening 13 does not necessarily have to have a gradually decreasing cross-sectional area toward the bottom, and does not need to be open to the bottom surface of the block body 10.
[0039]
【The invention's effect】
As described above, according to the present invention, by connecting the connecting arm members to each other, it is possible to maintain the mutual alignment against the water flow. In this case, the connecting arm members may be connected to each other in the adjacent space defined in each of the joint portions after the rooting blocks are arranged closely and vertically and horizontally, so that the work becomes complicated in arrangement. Nothing. Further, if this connecting arm member is made of metal, not only there is no risk of breakage at the time of construction on site, but also the connecting arm member can be used as a hanging tool to facilitate the work of arranging the blocks for rooting. Is also possible.
In addition, the central opening serving as a habitat for aquatic organisms opens at least on the upper surface of the block main body, and accommodates cobblestone inside. Therefore, sunlight can be incident on this central opening as appropriate, enabling the growth of moss and aquatic plants, and new water, that is, sufficient oxygen, is always supplied, and the aquatic organisms It becomes suitable as a habitat.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a foundation block according to the present invention.
FIG. 2 is a plan view of the block for consolidation shown in FIG. 1;
FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;
FIG. 4 is a plan view showing a state in which the block for consolidation of FIG. 1 is closely and vertically and horizontally arranged.
FIG. 5 is a sectional view conceptually showing a construction example to which the block for root consolidation of FIG. 1 is applied.
6 (a) is a plan view showing a block for foundation type root compaction applied in the construction example of FIG. 5, and FIG. 6 (b) is a sectional view thereof.
7 is a perspective view showing an example of a vegetation block and a fish nest block applied in the construction example of FIG. 5;
8 is a cross-sectional view conceptually showing a construction example to which the block for consolidation of FIG. 1 is applied.
9 (a) is a plan view showing a modified example of the block for foundation type root compaction applied in the construction example of FIG. 8, and FIG. 9 (b) is a sectional view thereof.
[Explanation of symbols]
1, 1 ', 1 "Rooting block 10, 10', 10" Block body 11 Outer surface for joining 12 Outer surface for space 13 Central opening 14 Fishway hole 15 Raised portion 16 'Base inclined surface 16 "Base upper surface 20 Connection Arm member 21 Connecting ring 30 Adjacent space 40, 41 Cobblestone 100 Seawall block 200 Fish nest block 201 Fish nest front wall 202 Fish nest retaining wall 203 Fish nest partition wall 204 Window hole 205 Communication hole 206 Ridge 207 Cover 300 Vegetation block 301 Vegetation front wall 302 Vegetation retaining wall 303 Vegetation partition wall 304 Ridge 400 Soil 401 Backing material

Claims (1)

A block main body having an octagonal cross-sectional shape that defines adjacent spaces in four vertical and horizontal junctions when closely aligned vertically and horizontally, and penetrates vertically in the center of the block main body. A central opening that is open at least on the top surface and accommodates cobblestone therein, and extends radially from the central opening and extends along a bottom surface of the block main body from a portion substantially intermediate with respect to the height of the block main body. And a through hole having a predetermined inner diameter that opens to the outside of the block main body in the adjacent space, and extends outward from an outer peripheral portion of the block main body, and is connected to each other in the adjacent space to have a high rigidity. A connecting arm member made of metal ,
When arranged vertically and horizontally on the bottom of the river to prevent scouring, the central opening accommodates cobblestone inside and allows sunlight to enter, allowing moss and aquatic plants to grow, and the through hole is A root consolidation block having a predetermined inner diameter and serving as an entrance for aquatic organisms through the adjacent space with respect to the central opening .

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