JP4853709B2 - Artificial fish reef, sinking, fishway, and seawall member using waterside installation members - Google Patents

Description

  The present invention relates to a waterside installation member that can be used as an artificial fish reef, a subsidence, a fishway, or a revetment member by installing a single or a plurality of them on a waterside such as a river or the sea.

  Traditionally, artificial reefs have been used to collect seafood and build and expand fishing grounds by artificially forming ridges on the bottom of rivers, oceans, etc. to create a suitable environment for fish and fishery. May be. Examples of such artificial fish reefs include those using concrete blocks formed in a certain shape, and those obtained by assembling waste materials such as steel and old tires into a certain shape.

  However, artificial reefs using conventional concrete blocks such as those described above have a strong alkaline surface and little surface irregularities, making it difficult for aquatic plants, seaweeds and algae to adhere to them, and shellfish and small fish gather. There is a problem that the fish collection effect is low due to difficulty. On the other hand, artificial fish reefs using waste materials have problems that their aging changes are severe and their appearance is not so good. Furthermore, since these artificial reefs are considerably heavy in weight, they are not easy to transport and install, and are difficult to move once installed.

  In addition, in order to prevent the sediment of the riverbed from being washed away by the flow of water, there was a case where a woodwork subsidence, in which timber was framed in a lattice shape and filled with stones, was submerged in the riverbed. However, such woodwork sinking has a problem in that it is necessary to perform replacement work periodically because the wood is easily corroded, which is troublesome.

  In addition, if a water level difference occurs that prevents the fish from going up or down by itself, as a result of providing structures such as weirs and embankments across the river, weirs, embankments, etc. There is a case where a waterway with a gentle slope is provided adjacent to the river to make it a fishway so that the fish can go up and down by themselves. However, there is a problem that the construction for providing such a water channel requires a long time and is expensive.

  In addition, there are cases where a bank is provided around the shore such as a river or the sea in order to prevent the shore from being eroded by water flow or waves. Such a revetment is constructed by placing concrete around the shore or stacking stones. However, in the method of placing concrete, although the construction can be easily performed, there is a problem that the shore becomes an environment that is not suitable for the growth of seafood without unevenness. On the other hand, there is a problem that the method of stacking stones requires a lot of labor for construction, requires a long time for construction, and increases costs.

  In order to solve such a problem, the present applicant has conventionally proposed a waterside installation member (water bottom installation member) 70 that can be used as an artificial fish reef, a subsidence, a fishway, or a seawall member (see Patent Document 1). FIG. 17 is a schematic cross-sectional view showing the configuration of the waterside installation member 70. The waterside installation member 70 includes a plurality of natural stones 72 having through holes 71, connection members 73 that are inserted through the through holes 71 of the natural stones 72 to connect the natural stones 72, and both ends of the connection members 73. It is provided with a joined hook-like member 74. Here, as the connecting member 73, a metal wire, a reinforcing bar, or the like is used so as not to be cut due to the weight of the natural stone 72, friction with the natural stone 72, or the like.

  Then, a plurality of the waterside installation members 70 are coupled by locking the hook-shaped members 74 at both ends or by locking the hook-shaped members 74 to the connecting member 73, and these are arranged on the bottom of the water. As an artificial reef, sinking, fishway, or seawall. The artificial fish reef composed of the waterside installation member 70 has a high fish collection effect because it easily attaches algae and the like, has little secular change, and is easy to transport and install. Moreover, the subsidence which consists of the waterside installation member 70 can be used without replacing | exchanging for a long period of time. Furthermore, the fishway and revetment composed of the waterside installation member 70 can be provided at low cost by a short-term construction.

JP 2002-330661 A

  However, in the conventional artificial reef, sinking, fishway, or revetment member using the waterside installation member 70, the connecting member 73 constituting the waterside installation member 70 is a metal wire, a reinforcing bar, or the like. Is difficult to bend into a desired angle, for example, a substantially right angle or a substantially U shape, and there is a problem that workability is poor when a plurality of waterside installation members 70 are coupled. Further, as described above, the waterside installation member 70 is joined by locking the hook-shaped members 74 or by locking the hook-shaped member 74 to the connecting member 73, so that the connecting member 73 is bent. When the waterside installation member 70 is coupled, a force that causes the connecting member 73 to return to the original shape is applied, and the hook-like member 74 may be unlocked by this force.

  Further, when the waterside installation member 70 is installed on the bottom of the water, it is usually fixed to be immovable by embedding the hook-like members 74 at both ends in the waterside soil. There is also a problem that the lever-like member 74 comes out of the soil and the installation of the waterside installation member 70 becomes unstable.

  The present invention has been made in view of such a problem, and a plurality of waterside installation members formed by connecting a plurality of natural stones with a connecting member are combined to form an artificial reef, a subsidence, a fishway, or a seawall member. In this case, it is possible to provide a means that enables the waterside installation members to be more stably installed regardless of the water flow or wave force while performing the coupling between the waterside installation members more firmly and efficiently.

  In order to achieve the above object, an artificial fish reef using the waterside installation member according to claim 1 is connected to a plurality of natural stones having through holes formed therein, and a plurality of natural stones inserted through the through holes of these natural stones. A waterside installation member provided with a chain, a substantially U-shaped body attached to both ends of the chain of the waterside installation member and having an insertion hole, and a connecting rod that connects the both ends across the opening of the body And an anchor bolt that is inserted through the insertion hole of the shackle and is driven into the waterside ground.

A fishway using the waterside installation member according to claim 2 is provided with a plurality of natural stones having through holes and a chain that is inserted through the through holes of these natural stones and connects the plurality of natural stones. Are connected in a ladder shape through a shackle having a substantially U-shaped main body with an insertion hole and a connecting rod that connects both ends of the main body across the opening of the main body, and is provided across the river. A waterside installation member coupled in a ladder shape is installed so as to cover the structure from above, and the anchor bolt is driven into the waterside ground through the insertion hole of the shackle.

The revetment member using the waterside installation member according to claim 3 is provided with a plurality of natural stones having through holes, and a chain that is inserted through the through holes of these natural stones and connects the plurality of natural stones. The members are joined in a lattice form through a shackle comprising a substantially U-shaped main body with an insertion hole and a connecting rod that connects the both ends of the main body across the opening of the main body. The waterside installation member is installed so as to cover the ground near the water surface, and the anchor bolt is driven into the waterside ground through the insertion hole of the shackle.

  Since the artificial reef using the waterside installation member according to the present invention uses a chain as a member for connecting a plurality of natural stones, the waterside installation member can be easily bent. Therefore, an artificial fish reef can be easily installed so as to be along the bottom of a river or the sea. Also, since both ends of the waterside installation member are fixed to the waterside using shackles and anchor bolts, the both sides of the waterside installation member are fixed to the waterside more securely than when the both ends of the waterside installation member are embedded in the waterside soil and fixed. Can do. As a result, the artificial reef can be stably installed regardless of the water flow or wave force.

  In addition, the fishway using the waterside installation member according to the present invention is configured by connecting a plurality of natural stones with a chain to configure the waterside installation member, so that the waterside installation member can be easily bent and joined efficiently in a ladder shape. It can be performed well and the fishway can be easily installed along the bottom of the river. In addition, since the combined waterside installation member is fixed to the waterside using a shackle and anchor bolts, it can be more securely fixed to the waterside compared to embedding and fixing both ends of the waterside installation member in the waterside ground. . As a result, the fishway can be stably installed regardless of the water flow or the wave force.

  In addition, the revetment member using the waterside installation member according to the present invention is configured by connecting a plurality of natural stones with a chain to form the waterside installation member, so that the waterside installation member can be easily bent and joined in a lattice shape. While being able to perform efficiently, a seawall member can be easily installed so that the ground near the water surface may be covered. In addition, since the combined waterside installation member is fixed to the waterside using a shackle and anchor bolts, it can be more securely fixed to the waterside compared to embedding and fixing both ends of the waterside installation member in the waterside ground. . This makes it possible to stably install the revetment member regardless of the water flow or wave force.

  Hereinafter, a waterside installation member according to an embodiment of the present invention will be described with reference to the drawings. 1 and 2 are views showing a waterside installation member 1 according to a first embodiment of the present invention. FIG. 1 is a schematic plan view, and FIG. 2 is a schematic cross-sectional view. The waterside installation member 1 according to the present embodiment includes a plurality of natural stones 3 having through holes 2 and chains 4 that are inserted through the through holes 2 of the natural stones 3 and connect the natural stones 3. It is.

  Natural rock 3 is used as natural stone 3. The natural stone 3 has a diameter of about 10 to 80 cm, because if it is too small, it will be easily washed away by the flow of water, and if it is too large, it will be difficult to transport, install and move. It is preferable to use However, the size of the natural stone 3 is not necessarily limited to this, and it is possible to select and use an appropriate size according to the installation location, application, and the like.

  The shape of the natural stone 3 is not particularly limited, and various shapes of rocks can be used. In addition, when using the bottom sedimentation member which concerns on this invention as an artificial fish reef mentioned later, the rock with many unevenness | corrugations on the surface becomes easy to attach aquatic plants, seaweeds, etc., and is suitable. However, in the waterside installation member 1 according to the present embodiment, since the natural stone 3 is uneven with time due to the contact between the adjacent natural stones 3, the rock has a relatively smooth surface with no unevenness on the surface. Can also be used as natural stone 3.

  The number of natural stones 3 used per waterside installation member 1 is not particularly limited, and any number of natural stones 3 can be connected as long as the number is 2 or more according to the length of the chain 4. However, if the amount of natural stone 3 is too large, it will be difficult to carry, install, move, etc., as is the case with the size of natural stone 3 being too large. It is preferable that a plurality of waterside installation members 1 are appropriately combined and used.

  Through holes 2 are formed in the natural stones 3 respectively. The through-hole 2 is provided for inserting the chain 4 therein, and has an inner diameter that allows the chain 4 to be inserted. The position where the through hole 2 is formed in the natural stone 3 is normally a position that passes through the center of the natural stone 3. However, the position where the through-hole 2 is formed is not necessarily limited to this, and can be formed near the end of the natural stone 3.

  The chain 4 is inserted through the through hole 2 of the natural stone 3 to connect the plurality of natural stones 3. The chain 4 is made of a material that is not broken by the weight of the natural stone 3 or friction with the natural stone 3, and in particular, stainless steel in consideration of corrosion resistance, impact resistance, and the like. It is preferred to use the chains 4 made of. The length of the chain 4 can be arbitrarily set as long as all the natural stones 3 to be used can be connected, but if the length is slightly longer, the interval between the natural stones 3 can be arbitrarily increased. Further, it is preferable because the chains 4 are exposed between the three natural stones 3 and thus can be easily bent. In addition, it is possible to connect the natural stone 3 with a metal rod-shaped member, a wire, a net, or the like instead of the chain 4, but the chain 4 is easier to bend than a rod-shaped member, a wire, etc. There exists an advantage that the operation | work which couple | bonds the some waterside installation member 1 and the operation | work which installs the combined waterside installation member 1 in a waterside are easy to perform.

  Next, a waterside installation member according to a second embodiment of the present invention will be described. 3 and 4 are views showing the waterside installation member 5 according to the second embodiment, FIG. 3 is a schematic plan view, and FIG. 4 is a schematic sectional view. The waterside installation member 5 according to the present embodiment includes a plurality of natural stones 7 having through holes 6, tubular members 8 disposed between the natural stones 7, through holes 6 and tubular members of the natural stones 7. And a chain 9 that is inserted through 8 and connects them.

  The waterside installation member 5 according to the present embodiment is different from the waterside installation member 1 according to the first embodiment in that a tubular member 8 is disposed between the natural stones 7. The tubular member 8 is a member disposed between the natural stones 7 in order to keep the interval between the natural stones 7 constant, and is a tubular member having an inner diameter through which a chain 9 connecting the natural stones 7 can be inserted. Use members. Although there is no restriction | limiting in particular about the length of the tubular member 8, Usually, it is set as the length of about half to twice the diameter of the natural stone 7. FIG. For example, stainless steel or synthetic resin is preferably used as the material of the tubular member 8 in consideration of corrosion resistance. When the waterside installation member 5 is used as an artificial fish reef, such a tubular member 8 has a smooth surface, so that aquatic plants and seaweeds hardly adhere to it, but algae easily attach. Therefore, when the waterside installation member 5 is used as an artificial fish reef, if this tubular member 8 is arranged alternately with natural stones 7 to which aquatic plants and seaweeds easily adhere, the waterside installation member 5 is well balanced with aquatic plants, seaweeds and algae. It is particularly suitable because it can adhere and collect various seafood. In addition, since the natural stone 7 and the chain | strand 9 which comprise the waterside installation member 5 which concern on a present Example are the same as the natural stone 3 and the chain | strand 9 which comprise the waterside installation member 1 which concerns on a 1st Example, it demonstrates here. Is omitted.

  Next, a waterside installation member according to a third embodiment of the present invention will be described. 5 and 6 are views showing the waterside installation member 10 according to the third embodiment, FIG. 5 is a schematic plan view, and FIG. 6 is a schematic cross-sectional view. The waterside installation member 10 according to the present embodiment includes a single natural stone 12 having a through hole 11 and a chain 13 inserted through the through hole 11 of the natural stone 12. Compared with the waterside installation member 1 according to the first embodiment, the waterside installation member 10 has a point that the number of natural stones 12 is one, and the length of the chain 13 is shorter according to the number of natural stones 12. Although it differs in a point, since the structure other than that is the same as the waterside installation member 1, description is abbreviate | omitted here.

  Next, the artificial fish reef using the waterside installation member according to the present invention will be described. This artificial fish reef is formed by submerging one or more of the waterside installation members 1, 5 and 10 according to the first to third embodiments, either alone or in combination, to the bottom of the water. Hereinafter, a specific example of such an artificial reef will be described.

  7 and 8 are views showing the artificial fish reef 14 according to the first embodiment, FIG. 7 is a schematic plan view, and FIG. 8 is a view taken in the direction of arrows AA in FIG. The artificial fish reef 14 according to the present embodiment is mainly used in a relatively shallow river, and as shown in FIG. Is provided so as to be orthogonal to the direction of water flow. By providing the artificial reef 14 in this way, a stepped head can be formed in the direction of water flow. Thereby, the quantity of oxygen in water increases, moss and algae increase, and it can be set as the environment suitable for the habitat of fish and small animals.

  As shown in FIG. 8, each artificial fish reef 14 includes a waterside installation member 1 according to the first embodiment that is sunk in the bottom of a river 15, and a pair of shackles attached to both ends of the waterside installation member 1. 16 and a pair of anchor bolts 18 inserted through the shackles 16 and driven into the ground 17 of the river 15. Here, FIG. 9 is a schematic perspective view showing the configuration of the shackle 16. The shackle 16 includes a substantially U-shaped main body 19 and connecting bolts (connecting rods) 21 that connect both ends of the main body 19 across the opening 20. The main body 19 is formed with bolt insertion holes 22 for inserting the connection bolts 21 and screw holes 24 for screwing the male screw portions 23 at the distal ends of the connection bolts 21 at both ends thereof. A pair of upper and lower insertion holes 25 are formed so as to penetrate the main body 19 in the vertical direction. On the other hand, as shown in FIG. 8, the anchor bolt 18 has one end 26 of a long metal rod formed sharply and the other end 27 formed in a hook shape, and its thickness is a shackle. It is a grade which can be inserted through 16 insertion holes 25. The shape of the main body 19 is not limited to a substantially U shape, and can be any shape. Further, as a means for fixing the connecting rod to the main body 19, for example, a connecting rod in a state of being inserted through the main body 19 is illustrated in addition to the configuration in which the connecting bolt 21 as a connecting rod is screwed into the main body 19 as in the present embodiment. It is also possible to fix the main body 19 so that it cannot be removed by inserting a pin or the like that is not used.

  When installing the artificial reef 14 configured as described above, first, the shackles 16 are respectively attached to both ends of the waterside installation member 1. More specifically, as shown in FIGS. 8 and 9, after inserting the main body 19 with the connection bolt 21 removed into the ring-shaped chain 4 constituting the waterside installation member 1, the connection bolt 21 is The main body 19 is screwed into the screw hole 24 through the bolt insertion hole 22. As a result, the shackle 16 is attached to one end of the chain 4 so as not to fall off. Next, the waterside installation member 1 with the shackles 16 attached to both ends is arranged along the bottom of the river 15. At this time, as described above, the chain 4 constituting the waterside installation member can be easily bent, so that the chain 4 can be easily arranged even if the shape of the water bottom is complicated. Next, both ends of the waterside installation member 1 are fixed to the ground 17 of the river 15 using the anchor bolts 18. More specifically, as shown in FIGS. 8 and 9, the anchor bolt 18 is inserted from a sharp end 26 into a pair of upper and lower insertion holes 25 formed in the shackle 16, and then the ground near the water surface 28. Type in 17. Here, since the other end 27 of the anchor bolt 18 is formed in a hook shape as described above, the shackle 16 does not fall off from the other end 27. As a result, the artificial reef 14 can be stably installed regardless of the water flow or the wave force.

  In addition, the space | interval, quantity, etc. which provide the artificial reef 14 toward the flow direction of the river 15 are not restricted to a present Example, It is possible to change suitably according to the speed of the flow of water, the width | variety of the river 15, etc. . In this embodiment, the case where the artificial fish reef 14 is installed in the river 15 has been described as an example. However, it is of course possible to install the artificial fish reef 14 in shallow water such as the sea or a lake.

  FIG. 10 is a schematic plan view showing the artificial fish reef 29 according to the second embodiment. The artificial fish reef 29 according to the present embodiment is mainly set on the bottom of the river 15, and the two waterside installation members 1 a and 1 b according to the first embodiment include two shackles 16 a and 16 b. It is connected in a ring shape via. More specifically, as shown in FIGS. 9 and 10, the main body 19 of the main body 19 and the connecting bolt 21 constituting one shackle 16a is connected to the ring-shaped chain 4 constituting one waterside installation member 1a. On the other hand, the connecting bolt 21 is inserted through the chain 4 constituting the other waterside installation member 1b. Similarly, of the main body 19 and the connecting bolt 21 constituting the other shackle 16b, the main body 19 is inserted into the chain 4 constituting the other waterside installing member 1b, while the connecting bolt 21 is one waterside installing member. It is inserted through the chain 4 constituting 1a. At this time, as described above, the chain 4 constituting the waterside installation members 1a and 1b can be easily bent, so that the artificial fish reef 29 as a whole can be easily bent by bending the chain 4 in a semicircular shape as shown in FIG. An annulus can be formed. As described above, since the plurality of waterside installation members 1 are coupled via the shackle 16, the waterside installation member 1 is not uncoupled due to the flow of water or waves, and the artificial reef 29 can be stably installed. It becomes possible.

  In this embodiment, the artificial fish reef 29 is composed of two waterside installation members 1a and 1b. However, the number of the waterside installation members 1 is not limited to this embodiment, and any number according to the size of the river and the like. It is possible to constitute the artificial fish reef 29 with the waterside installation member 1. For example, it is possible to form a single waterside installation member 1 in a circular arc shape, and attach both ends thereof to a single shackle 16 so as to form a circular connection. A plurality of shackles 16 can be connected in a ring shape. The shape of the waterside installation member 1 is not limited to an annular shape, and details are not shown in the figure, but it can be arranged in various shapes such as a square, a U-shape, a cross, and a lattice. is there.

  FIG. 11 is a schematic perspective view showing the artificial reef 30 according to the third embodiment. The artificial fish reef according to the present embodiment is mainly sunk on the sea floor, and one or a plurality of the waterside installation members 1 according to the first embodiment are joined, and shackles 16 are attached to both ends of the chain 4. Are attached in a desired number around the existing artificial fish reef 31 made of concrete. The existing artificial fish reef 31 made of concrete has strong alkalinity and little surface irregularities, so that algae, seaweeds, etc. are hard to adhere, and shellfish and small fish are hard to gather. By doing so, abundant algae and seaweeds adhere to the natural stone 3 that constitutes the waterside installation member 1, and it can be made an environment suitable for the habitat of shellfish and small fish, and large fish can easily gather, The fish collection effect of the artificial reef 31 can be enhanced. Of course, the shape of the existing artificial reef 31 is not limited to the cubic shape shown in FIG. 11, and the material thereof is not limited to concrete. Moreover, since the chain | strand 4 which comprises the waterside installation member 1 is easy to bend freely as mentioned above, regardless of the shape of the existing artificial fish reef 31, the waterside installation member 1 can be easily arrange | positioned around it. Furthermore, by attaching the shackles 16 to both ends of the chain 4, it is possible to prevent the natural stone 3 from falling off the chain 4. Further, when transporting the waterside installation member 1, the waterside installation member 1 can be attached to the tip of the crane so as not to fall off by passing a hook provided at the tip of the crane through the shackle 16. There is also an advantage that the waterside installation member 1 can be transported simultaneously.

  FIG. 12 is a schematic perspective view showing the artificial reef 32 according to the fourth embodiment. The artificial fish reef 32 according to the present embodiment is mainly used in the sea, and a plurality of the waterside installation members 1 according to the first embodiment coupled in a lattice shape are replaced with a plurality of existing water bottom installation members. The artificial fish reef 33 is arranged so as to cover the top. Here, it is preferable to secure a clearance enough to allow large fish or the like to pass between the waterside installation members 1 coupled in a lattice shape. According to such an artificial fish reef 32, it is possible to easily configure a larger artificial fish reef as compared with the artificial fish reef 30 according to the third embodiment described above. In addition, the coupling | bonding aspect of each waterside installation member 1 is not restricted to a grid | lattice form, It is possible to comprise the artificial reef 32 by arrange | positioning similarly what was couple | bonded with arbitrary aspects. In this embodiment, the existing artificial fish reef 33 is described as an example of a quadruped shaped block. However, the present invention is not limited to this, and various existing artificial fish reefs may be used. Of course you can. Moreover, since the chain | strand 4 which comprises the waterside installation member 1 as mentioned above is easy to bend freely, regardless of the shape of the existing artificial fish reef 33, the waterside installation member 1 can be arrange | positioned easily on it.

  As described above, in the artificial fish reefs 14, 29, 30, and 32 according to the first to fourth embodiments, for convenience of explanation, the artificial fish reefs 14, 29, 30, and 32 are formed only by the waterside installation member 1 according to the first embodiment. Although comprised, it is not restricted to this, An artificial fish reef is comprised only with the waterside installation member 5 which concerns on 2nd Example, or the waterside installation member 10 which concerns on 3rd Example, or the waterside installation member 1 which concerns on each Example It is also possible to configure artificial fish reefs 14, 29, 30 and 32 by mixing 5 and 10.

  Next, sinking using the waterside installation member 1 according to the present invention will be described. This sinking is mainly for preventing scouring of the bottom of the river, and a plurality of one or more of the waterside installation members 1, 5 and 10 according to the first to third embodiments are used. They are combined in a lattice shape and set on the bottom of the water, and stones are arranged in the formed lattice frame.

  FIG. 13 is a schematic perspective view showing the sinking 34 according to the present embodiment. The subsidence 34 includes a plurality of waterside installation members 1 according to the first embodiment arranged in a grid, a plurality of shackles 35 that couple the waterside installation members 1 to each other, and a grid formed by each waterside installation member 1. And a stone member 37 disposed in the frame 36. Here, the waterside installation member 1 is composed of a long vertical waterside installation member 38 arranged in the vertical direction and a short horizontal waterside installation member 39 arranged in the horizontal direction. Further, the shackle 35 has the same configuration as the shackle 16 shown in FIG. 9, and is disposed at predetermined intervals along the longitudinal direction of the longitudinal waterside installation member 38. Of the plurality of shackles 35, the shackle 35 disposed in the longitudinal intermediate portion of the longitudinal waterside installation member 38 is in the longitudinal waterside relative to the pair of insertion holes 25 shown in FIG. 9 formed in the main body 19. Each of the chains 4 constituting the installation member 38 is inserted, and the connecting bolt 21 is inserted into the ring-shaped chain 4 constituting the lateral waterside installation member 39, so that the horizontal waterside installation member 38 and the lateral waterside installation member 38 are laterally inserted. The direction waterside installation member 39 is coupled. Further, the shackles 35 respectively disposed at both longitudinal ends of the longitudinal waterside installation member 38 have the connecting bolts 21 inserted through the ring-shaped chains 4 constituting the longitudinal waterside installation member 38, and The main body 19 is inserted through the chain 4 constituting the lateral waterside installation member 39, thereby connecting the vertical waterside installation member 38 and the lateral waterside installation member 39. In this way, by using the shackle 35 for coupling the longitudinal waterside installation member 38 and the lateral waterside installation member 39, the coupling between the two is not released even when subjected to water flow or wave force, etc. Stable installation is possible.

  As for the shackle 16 disposed at both longitudinal ends of the longitudinal waterside installation member 38, the main body 19 is inserted into the chain 4 constituting the longitudinal waterside installation member 38, and the connecting bolt 21 is connected. It is also possible to pass through the chain 4 constituting the lateral waterside installation member 39. Further, instead of the shackle 16 disposed in the longitudinal intermediate portion of the longitudinal waterside installation member 38, the lateral waterside installation member 39 is coupled to the longitudinal waterside installation member 38 by fastening using a wire or the like. Is also possible.

  The stone material 37 is used in combination with the waterside installation member 1 coupled in a lattice shape to enhance the bottom scouring prevention effect. The material and size of the stone material 37 are not particularly limited, but natural stones such as split stones and cobblestones are used in this embodiment. Accordingly, there is an advantage that the water hitting the stone material 37 rotates and oxygen easily enters the water, leading to purification of water quality. Furthermore, using a rounded corner like a cobblestone has the advantage that algae can be easily attached and a fish collection effect can be expected. In the present embodiment, the sinking 34 is constituted only by the waterside installation member 1 according to the first embodiment, but the waterside installation member 5 according to the second embodiment and the waterside according to the third embodiment are not limited thereto. It is also possible to configure the sinking floor 34 only by the installation member 10 or to configure the sinking floor 34 by mixing the waterside installation members 1, 5, 10 according to each embodiment.

  Next, a fishway using the waterside installation member 1 according to the present invention will be described. This fishway has structures such as weirs and dikes across the river, and when there is a water level difference that prevents fish from going up or down by itself on the upstream and downstream sides, A waterside installation member 1 according to any one of the first to third embodiments is provided to allow a fish to move up and down by itself by providing a gently sloping waterway in a part of a structure such as a bank. , 5 and 10 are combined in a ladder shape and set on the bottom of the water.

  FIG. 14 is a schematic longitudinal sectional view showing the fishway 40 according to the present embodiment. The fishway 40 includes a waterside installation member group 42 sunk in the bottom of the river 41, fixing shackles 43 attached to both ends of the waterside installation member group 42, and the fixing shackles 43. Anchor bolts 45 driven into the ground 44. Here, FIG. 15 is a schematic plan view showing the configuration of the waterside installation member group 42. In the waterside installation member group 42, a long vertical waterside installation member 46 arranged in the vertical direction and a horizontal waterside installation member 47 arranged in the horizontal direction are coupled in a ladder shape via a shackle 48 for coupling. It is constituted by being done. In this embodiment, the waterside installation member 1 according to the first embodiment is used as the longitudinal waterside installation member 46, and the waterside installation member 10 according to the third embodiment is used as the lateral waterside installation member 47. Further, the connecting shackle 48 has the same configuration as the shackle 16 shown in FIG. 9, and the chains 4 constituting the vertical waterside installation member 46 are respectively formed in the pair of insertion holes 25 formed in the main body 19. While being inserted, the connecting bolt 21 is inserted into the ring-shaped chain 4 constituting the lateral waterside installation member 47, thereby connecting the vertical waterside installation member 46 and the lateral waterside installation member 47. . As described above, the coupling shackle 48 is used for coupling the longitudinal waterside installation member 46 and the lateral waterside installation member 47, so that the coupling between the two is not broken even when subjected to water flow or wave force. 40 stable installations are possible. Further, the fixing shackle 43 and the anchor bolt 45 have the same configuration as the shackle 16 shown in FIG. 9 and the anchor bolt 18 shown in FIG.

  In this embodiment, the fishway 40 is constituted by the waterside installation member 1 according to the first embodiment and the waterside installation member 10 according to the third embodiment. However, the present invention is not limited to this, and the waterside installation member 1 according to each embodiment. , 5, 10 can be used to configure the fishway 40, or the waterway installation members 1, 5, 10 according to each embodiment can be mixed to form the fishway 40. Further, the lateral waterside installation member 47 can be coupled to the vertical waterside installation member 46 by fastening with a wire (not shown) or the like instead of the coupling shackle 48.

  When installing the fishway 40 configured as described above, first, the fixing shackles 43 are respectively attached to both ends of the longitudinal waterside installation member 46 constituting the waterside installation member group 42. More specifically, as shown in FIG. 9 and FIG. 14, after the main body 19 with the connection bolt 21 removed is inserted into the chain 4 constituting the longitudinal waterside installation member 46, the connection bolt 21 is connected to the main body. The screw holes 24 are screwed through the 19 bolt insertion holes 22. Thereby, the fixing shackle 43 is attached to one end of the chain 4 so as not to fall off. Next, the waterside installation member group 42 is arranged so as to cover a part of the structure 49 such as a weir or a bank provided across the river 41. At this time, as described above, the chains 4 constituting the waterside installation members 1 and 10 are easily bent, so that the waterside installation member group 42 can be easily arranged even if the shape of the structure 49 is complicated. . Next, the waterside installation member group 42 is fixed to the ground 44 of the river 41 using the anchor bolt 45. More specifically, as shown in FIGS. 9 and 14, after the anchor bolt 45 is inserted from the sharp end 50 side into the pair of upper and lower insertion holes 25 formed in the fixing shackle 43, Drive into the ground 44. Here, since the other end 51 of the anchor bolt 45 is formed in a hook shape as described above, the fixing shackle 43 does not fall off from the other end side. Thereby, the waterside installation member group 42 can be stably installed regardless of the water flow or the wave force.

  Thus, by covering a part of the structure 49 with the waterside installation member group 42, the flow of water becomes gentle at the installation position of the waterside installation member group 42, and the fishway allows the fish to go up and down by itself. 40 is formed. Therefore, the fishway 40 can be provided at low cost by a short-term construction without changing the existing structure 49.

  Next, the revetment member using the waterside installation member 1 according to the present invention will be described. The revetment member is for preventing erosion of the coast or river shore, and a plurality of one or more of the waterside installation members 1, 5, and 10 according to the first to third embodiments are arranged in a grid pattern. It is installed on the waterside near the shore.

  FIG. 16 is a schematic longitudinal sectional view showing the seawall member 52 according to the present embodiment. The revetment member 52 includes a stone 55 laid to cover the ground 54 near the water surface 53 on the shore or river shore, a waterside installation member group 56 installed on the stone 55, and both ends of the waterside installation member group 56 And an anchor bolt 58 which is inserted into the ground 54 on the coast or river bank through the shackle 57 provided on the ground. Here, the stone 55 is for preventing the ground 54 near the water surface 53 from being eroded in combination with the waterside installation member group 56. The stone material 55 has the same configuration and effect as the stone material 37 shown in FIG. Further, the waterside installation member group 56 is not shown in detail in FIG. 16, but, similar to the sinking 34 shown in FIG. 13, the vertical waterside installation member 46 and the lateral waterside installation member 47 are connected via a shackle 57 or a wire. These are joined in a lattice shape by fastening using the like. Further, the shackle 57 and the anchor bolt 58 have the same configuration as the shackle 16 shown in FIG. 9 and the anchor bolt 18 shown in FIG.

  When installing the revetment member 52 configured in this manner, as shown in FIG. 16, first, the ground 54 of the shore 60 is covered from the ground 54 of the bottom 59 near the water surface 53 that is susceptible to erosion by water currents and waves. Then, the stone 55 is laid. Next, a waterside installation member group 56 is disposed on the stone material 55. At this time, as described above, since the chains 4 constituting each waterside installation member group 56 are easily bent, the waterside installation member group 56 can be easily arranged even if the topography of the water bottom 59 and the shore 60 is complicated. it can. And the waterside installation member group 56 is fixed to the water bottom 59 or the ground 54 of the shore 60 using the anchor bolt 58. More specifically, as shown in FIGS. 9 and 16, after a pair of upper and lower insertion holes 25 formed in the shackle 57 is inserted with an anchor bolt 58 from the sharp end 61 side, the ground of the bottom 59 is obtained. 54 and ground 54 on the shore 60. As a result, the revetment member 52 can be stably installed regardless of the water flow or wave force.

  The stone 55 is not an essential component of the revetment member 52 according to the present invention, and a waterside installation member group 56 can be directly disposed on the ground 54 near the water surface 53. Further, in this embodiment, the waterside installation member group 56 is provided from the ground 54 of the bottom 59 to the ground 54 of the shore 60. However, the present invention is not limited to this. For example, only the ground 54 of the bottom 59 near the water surface 53 is provided. It is also possible to arrange the waterside installation member group 56 so as to cover it, or to arrange the waterside installation member group 56 so as to cover only the ground 54 of the shore 60 near the water surface 53.

  The artificial reef, subsidence, and fishway according to the present invention can be arranged not only in an arrangement mode in which the whole is submerged, but also in a part that is submerged and the other part is exposed to the outside from the water surface.

The schematic plan view which shows the waterside installation member 1 which concerns on 1st Example of this invention. The schematic sectional drawing which shows the waterside installation member 1 which concerns on 1st Example of this invention. The schematic plan view which shows the waterside installation member 5 which concerns on 2nd Example of this invention. The schematic sectional drawing which shows the waterside installation member 5 which concerns on 2nd Example of this invention. The schematic plan view which shows the waterside installation member 10 which concerns on 3rd Example of this invention. The schematic sectional drawing which shows the waterside installation member 10 which concerns on 3rd Example of this invention. The schematic plan view which shows the artificial fish reef 29 which concerns on 1st Example. The AA direction arrow directional view in FIG. The schematic perspective view which shows the structure of the shackle 57. FIG. The schematic plan view which shows the artificial reef 29 which concerns on 2nd Example. The schematic perspective view which shows the artificial reef 30 which concerns on 3rd Example. The schematic perspective view which shows the artificial fish reef 32 which concerns on 4th Example. The schematic perspective view which shows the sinking 34. FIG. 1 is a schematic longitudinal sectional view showing a fishway 40. FIG. The schematic plan view which shows the waterside installation member group 56. FIG. The schematic longitudinal cross-sectional view which shows the seawall member 52. FIG. The schematic sectional drawing which shows the structure of the waterside installation member 70 which concerns on a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,5,10 Waterside installation member 2 Through-hole 3 Natural stone 4 Chain 14 Artificial fish reef 16 Shackle 17 Ground 18 Anchor bolt 19 Main body 20 Opening part 21 Connecting bolt 25 Insertion hole 34 Settling 36 Grid frame 37 Stone 40 Fishway 49 Structure 52 Seawall material

Claims (3)

  A waterside installation member comprising a plurality of natural stones having through holes, and a chain that is inserted through the through holes of these natural stones to connect the plurality of natural stones, and is attached to both ends of the chain of the waterside installation member, A shackle having a substantially U-shaped main body formed with an insertion hole and a connecting rod that connects both ends of the main body across the opening of the main body, and an anchor that is inserted through the insertion hole of the shackle and driven into the waterside ground An artificial fish reef using a waterside installation member characterized by having a bolt.   A plurality of natural stones having through holes, and a waterside installation member comprising a chain that is inserted through the through holes of these natural stones and connects the plurality of natural stones, a substantially U-shaped main body having an insertion hole, and The ladder-like shape is formed so as to be covered with a ladder through a shackle having connecting rods that connect both ends of the main body across the opening of the main body so as to cover the structure provided across the river. A fishway using a waterside installation member, characterized in that a waterside installation member coupled to a waterside is installed, an insertion hole of the shackle is inserted, and an anchor bolt is driven into the ground of the waterside.   A plurality of natural stones having through holes, and a waterside installation member comprising a chain that is inserted through the through holes of these natural stones and connects the plurality of natural stones, a substantially U-shaped main body having an insertion hole, and It is connected in a lattice shape through a shackle comprising connecting rods that connect both ends of the main body across the opening of the main body, and the waterside installation member connected in the lattice shape is covered with the ground near the water surface. A revetment member using a waterside installation member, wherein the waterside installation member is installed and the anchor bolt is driven into the ground of the waterside by inserting the insertion hole of the shackle.

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