JPH10114927A - Streambed protection block and protection with conideration to walking of humans and ecosystems - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a streambed protection block and streambed protection which allows walking on such blocks across a stream to the opposite bank, strolling along a streamside, greening of a streamside conforming to natural conditions, provision of a floating island in a stream and the underside thereof as habitats and places of rest for fish and shells and the surface of a stream and a water channel in a park as an area of passage and athletics, forming a living environment where people can enjoy water, providing walking equipment as a desirable habitat for fish, insects or other aquatic animals and plants. SOLUTION: A streambed protection block is made up of a plate section 1 formed by composing the top of a rectangular plate 1 of an imitation stone or imitation wood pattern or natural stone or wood or by burying such material and a block 2 with a U-shaped cross section supporting the plate section 1. Then a water flow section is formed at one side wall or both side walls of the block 2 with a U-shaped cross section and openings 23, 24 or a depression is formed at the bottom so that natural stone or waste construction materials may be filled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the creation of a protective floor block to be installed at the shore and in the stream of a river. As a floating island in a streamlined greenery or stream, the lower part is provided as a habitat and rest area for underwater fish and shellfish, and the water surface such as rivers and waterways in the park can be used as appropriate as a passage or exercise area, and The purpose of the present invention is to provide a protective floor block and a protective yard that can form a living environment in which the pedestrian can be familiar with, and that can provide a preferable habitat for fish, insects and other aquatic organisms or plants in the walking facilities. .

[0002]

2. Description of the Related Art Boulders of natural stone are slabbed and laid continuously on the banks and flows of rivers and other rivers to form stagnation in the water and to be used as a resting place for fish, etc. Its use has been widely adopted since ancient times.

In recent years, natural stone materials have been buried in a mere concrete plate or formed with pseudo-rocks, and have also been used as slabs that also serve as solidification of rocks that have protruded above the water surface.

[0004]

The number of the natural stones as described above is small and it is becoming difficult to prepare them with the same size. Also, preparing it leads to new destruction of nature, and it is difficult to maintain stability in the river flow. Therefore, stones are buried in concrete foundation slabs for stabilization, or artificial rocks are formed to prevent natural destruction, but this cannot be considered in consideration of the ecosystem demanded in recent years.

[0005] In other words, the stagnation behind the flow of stones is not large, and not many fish can rest. In addition, it is not shaded and cannot protect itself from birds, etc., and there is no feeding ground, so it can not be a habitat. In addition, the height and area are not constant as a walking place for people to cross and it is difficult to walk, and it is dangerous as a stepping stone underwater.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in the prior art, and can be constructed and modified relatively easily, and when a person is sufficiently close to the waterside,
It is able to get close to the water surface and consider the ecosystem, and has succeeded in responding to the much-requested multi-natural type in recent years.

(1) The upper surface of the rectangular plate-like member is made of a pseudo-stone, a pseudo-wood pattern, or natural stone or wood itself, or a plate-like member formed by embedding and a cross section U for supporting the plate-like member. A water-permeable portion is formed on one or both sides of both sides of the U-shaped block, and an opening or a concave portion is formed on the bottom so that natural stone or construction waste can be filled. Protective flooring blocks that take into account the walking and ecosystem of the occupants.

[0008] (2) The rectangular plate-like member is formed so that the peripheral side thereof is projected in a frame shape, a drain hole is formed in the plate-like member, and a vegetation material or a stone material is filled in the frame. (1) The protection floor block in consideration of human walking and ecosystem as described in the item (1).

(3) A through hole communicating with the rectangular plate member and the bottom plate portion of the U-shaped block is formed, and a main tree such as a false tree or a log is protruded from the plate member and arranged. The protective floor block according to any one of the above (1) and (2), in which human walking and ecosystem are taken into consideration.

(4) A plurality of through holes are formed in the rectangular plate-like body, and a vegetation material is integrally formed on the bottom surface of the plate-like body according to the inner width of the U-shaped block. The protective floor block according to any one of the above items (1) to (3), in consideration of human walking and ecosystem.

(5) The above-mentioned (1) to (1) to (1) to (2), wherein an engagement structure is formed on the upper portions of both side walls of the U-shaped block, and a connection structure is formed on the rectangular plate-like body, and they are integrally combined.
(4) The protective flooring block according to any one of the above items, which takes into account human walking and ecosystem.

(6) Any one of the above items (1) to (5)
A protective floor block that considers human walking and ecosystem, characterized in that hook streaks for joining are formed at the joining corners of the rectangular plate-like body described in (1).

(7) A plurality of sets of bed protection blocks each composed of a rectangular plate-like body and a U-shaped cross section are set continuously or stepped along the length direction, the width direction of a river, or the direction of water flow. A floor guard that takes into account human walking and the ecosystem, characterized by being set to project perpendicularly from the shore.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a first embodiment of the present invention; FIG. The water-blocking block and the protective floor block using a plate-like body mounted on the block are configured as shown in FIG. 17 and the like, which will be described later. In general, it is preferable that the width is larger than or equal to the height in order to stabilize in the flowing water of the river.
1 is provided so as to be more stable. In addition, an opening 22 is formed on the bottom surface, and a stepped portion with a widened lower surface is formed so that the introduced natural stone material is not easily washed away.
3, 24 are provided, and furthermore, water can be passed across the block 2 from the side.

FIG. 2 is similar to that of FIG. 1 in that it is a U-shaped block for water passage 2a, but in order to reduce the weight, frame-shaped concave portions 25,
25 are provided, and the openings 23 and 24 are formed in the recess 25 as described above. The provision of the opening 22 on the bottom surface is the same as in FIG.

Further, the U-shaped block 2b in FIG. 3 has openings 23a, 24a cut from the top edges of the side walls instead of the openings 23, 24 in the side walls described above. An opening similar to that shown in FIG. 2 is formed on both side walls by attaching a rectangular plate-like body 1 as shown in FIG. It goes without saying that the shape, size and position cannot be changed arbitrarily according to the requirements. 2 and 3, the connecting holes 36 and the connecting bars 3 for attaching the plate-like body to the upper end of the side wall of the block 2 are used.
The plate-like body 1 can be fixed by forming 6a or using the connecting bolt 32 or the like. .

FIGS. 4 and 5 show still another embodiment of the water passage block according to the present invention. That is, the U-shaped block 2c of FIG. 4 has the protrusions 21 and 21a opposed to the upper and lower sides of the side wall of the block 2c, and the upper protrusion 21 increases the area for installing the plate-like body. The projecting portion 21a of the bottom slab promotes stability of the block due to the flow of the river when installed on the riverbed. In addition, a mounting hole 26 is formed on the bottom surface for inserting and attaching a false tree, a log, and other parts, and by providing such a log, the flow velocity in the U-shaped block is reduced, and It is designed to form a rest area. The U-shaped block 2d in FIG.
7 are formed so that natural stone materials and construction waste materials can be accommodated and set on the entire bottom of the block 2d, and four openings 28 are arranged in the side walls. The size, shape,
The number and position can be freely determined as described above.

FIGS. 6 to 16 show some examples of the rectangular plate-like member according to the present invention. That is, the rectangular plate-like body 1 of FIG. 6 is placed and set on the upper surface open portion of the water flow block as shown in FIGS. 1 to 5 or appropriately set directly to the water area. A stepped stone-like projection 11 formed by embedding a pseudo stone pattern or a main stone is disposed on the upper surface of the projection 1, and the top surface of the projection 11 serves as a non-slip surface as a stone material structure. Projections 11a are formed vertically on both sides of the bottom surface and engage with the top edges of the side walls 20 of the U-shaped blocks 2 to 2d as described above.

FIG. 7 shows the arrangement of a stepping stone 12 in which artificial wood or a log or the like of a concrete tree is buried, and a three-dimensional pseudo-stone pattern and a buried natural stone 13 for babbling water flow. Even if the degree of protrusion of the plate-like body 1a slightly changes, it can be appropriately obtained as a murmuring water flow, the durability is large, and the conversion can be set as required.

The plate-like member 1b shown in FIG. 8 has a stepping-stone-like protrusion 11 and a fitting hole 14 penetrating or not penetrating between the protrusions 11, and four corners of the plate-like member 1b. Is provided with a connection hole 15 for connecting at least a lower U-shaped block 2a.
Etc. are accepted. In the fitting hole 14, a pseudo-wood or a log member is penetrated to the U-shaped block or simply attached to the plate-like body, but the height thereof is set to such an extent that walking on the stepping stone-like projection 11 is not hindered. If it protrudes a little from the water surface, it becomes a rest area for birds and insects on the waterside, and when raised, it functions as a railing for people and a protective fence.

FIG. 9 shows a plate-like body 1 made of a pseudo plate and a motoki.
FIG. 10 shows a plate-like body 1d made of pseudo-stone or main stone formed as a monolith, and FIG. 11 further shows a combination of logs of a main tree log 16a in parallel. 16 shows a plate-like body 1e integrated or integrally formed. These are forms suitable for use as a promenade in the riverbed as appropriate, and in the case of using only wooden boards or logs, fastening holes 17 are provided at four corners and the like to be used underwater. Even if it is set to prevent floating, that is, it is basically possible that these may be set in a state of being exposed from the water surface, but also in a state where there is no exposed portion from the water surface It is clear that it can be used for stable walking purposes compared to the muddy and uneven surface and the unstable riverbed surface.

FIGS. 12 and 13 show a rectangular plate-like body whose peripheral side protrudes in a frame shape, a central portion is formed as a recessed portion 18, and a drain port 10 is formed in the plate-like body corresponding to the bottom. A vegetation bag made of natural fibers such as palm for growing vegetation is set by filling stones (natural or the like) in parallel in the recessed portion 18 as shown in FIG.
Is a plate-like body 1f having a pseudo-stone pattern 13a at the top of the frame according to the stone material to be filled, and FIG. 13 is a plate-like body 1g having a pseudo-wood pattern 12a that matches naturally when greening is performed by installing a vegetation bag or the like.
It is. The thing of FIG. 14 matches the image of the riverbank and the riverbed, and the surface is a pseudo-stone pattern of cobblestone, or a natural stone material 13 buried.
A fitting hole 1 for placing fish in or out of the U-shaped block at the bottom or for installing a false tree or log in communication with the bottom of the U-shaped block
The connecting hook 35a is buried at the end of the plate-like body 1h, which is referred to as "4". 15 is a pattern of a shape in which cobblestones are laid and arranged inside the frame, the upper part of the frame is a split stone pattern 29a with an integrally formed plate-like body 1i, and the one of FIG. 16 is between the log projections 19 on both sides. A plate-like body 1j in the form of a pattern in which a stone or a stone-like block is fitted. In each case, a through-hole 10a to the lower U-shaped block is provided between the boulders.

In other words, those shown in FIGS. 12 to 16 are set to be exposed above the water surface or set under the water surface in the same manner as those shown in FIGS. Alternatively, a habitat for aquatic insects and fry, algae growth and accompanying feeding grounds and spawning grounds are formed between the stone-like irregularities. In addition, through holes in the bottom surface and gaps between the stones allow water to flow effectively under flowing water conditions, and when the water is drought, the internal water is effectively drained out to prevent rot due to stagnation water. As shown in FIG. 13, the peripheral portion where logs are arranged in rows or a log-like wood pattern is formed sufficiently obtains a soft feeling, and the above-mentioned concave portion 18 formed in the center portion is used as described above. In particular, in the case where a through hole 10 having a relatively large area is provided on the bottom surface as shown in FIG. 13, the roots of the aquatic plants extend into the U-shaped block from the bottom hole and countless. The ingrown roots provide a spawning ground and a habitat for fry, as well as greening of the waterside by plants and purification by plants.

As shown in FIGS. 14 and 15, the corners of which are cut off are provided with connecting hook streaks 35a and the like, and a large number of blocks are connected and set as shown in FIGS. 28 and 29 described later. 16 and the through hole 10a as in FIG.
Enables the entry and exit of aquatic organisms as appropriate.

FIGS. 17 to 23 show some examples of the bed guard according to the present invention. FIG. 17 shows the stepping stone of FIG. 6 above the U-shaped block 2 as shown in FIG. FIG. 4 is a cross-sectional view showing a state where the rectangular plate-like body 1 on which the projecting protrusions 11 are provided is placed and assembled, and a concrete block 3 such as natural stone or construction waste is loaded on the inner bottom of the block 2. On the surface, aquatic plants, algae, etc. grow, and the gaps between the stones serve as habitats for aquatic insects. In addition, the fish 4 and the like enter and exit the openings 23 and 24 on both side walls as appropriate, and can evacuate the block 2 or can be sufficiently used as a habitat spawning area. The stepping stone-like projection 11 appropriately projects from the water surface, Properly walk or approach the water surface.

FIGS. 18 and 19 show an embodiment in which the floor protection block of the present invention as shown in FIG. 17 is provided in a state of crossing a water channel. A step-like projection 11 suitable for walking is formed on the top, and the water flow of the river together with the openings 23 and 24 forms the stepping-stone projection 1.
It is appropriately obtained as a stream of water between them, and both sides of the guard block are habitats for fish and the like.

FIG. 20 and FIG. 21 show that a guard block is disposed on the shore of the steep slope and the flow of water according to the present invention, and the U-shape of FIG. The block 2c and the rectangular plate-like body 1h of FIG. 14 are combined,
Natural materials having a habitat for aquatic animals in the underwater area by arranging them in a wavy shape with pillars 8 such as logs of the main tree and loading stones or construction waste materials 3 between the revetment walls 7 and vegetation prospering. Form a waterfront. A U-shaped block 2b of FIG. 3 and a plate-like body 1c of FIG. 9 form a walking path having a fishway and an evacuation area at the lower part on the right side of the figure to form a walk or a fishing ground. A case where a floating island having a fish nest is formed by using the U-shaped block 2d of FIG. 5 and the frame-shaped plate-like body 1g shown in FIG. That is, the floating island is formed by the concave portion 18 as shown in FIG.
The vegetation bag 30 or the stone 3 is loaded into the vegetation to vegetate willows and waterside plants, and sediment is deposited on the vegetation bag 30 to prosper naturally and form a floating island covered with greenery. Of course, such a floating island portion may be provided with a walking facility using the stepping stone-like projections 11 as shown in FIGS. 18 and 19 from any of the revetment wall 7 or the waterside walking path.

Further, according to the present invention, as shown in FIG. 22 and FIG. 23, one or both of the revetment walls 7 of the gentle slope face the water projecting as a right angle into the flow of the river. It can be configured as a construction 9. As shown in FIG. 24, a vegetation bag 30 is provided on the lower surface side of a plate-like body 1i in which cobble stones are integrally formed in the frame of FIG. 24 or a plate-like body 1l in which the vegetation bag 30 is housed and set in a basket-like or mesh-like protection part 38 as shown in FIG. 25, whereby the plate-like body 1k shown in FIG. FIG.
As shown in Fig. 2, plants can prosper and create a green landscape of Dejima. Also, as shown in FIG. 23, by setting the plate-like body 1a of FIG. 7 above the U-shaped block 2a of FIG. 2, it can be used as a perch such as a water bird or a stepping stone for anglers.

FIGS. 26 and 27 show a typical structure for attaching the plate-like body 1b or 1f to the blocks 2a and 2b as described above. That is, in FIG. 26, the connecting bolt 32 inserted into the concave hole 31 is connected and fixed to the insert material 33, and in FIG. 27, the connecting bar 36a in the block 2b is connected to the connecting hole of the plate-like body 1f. In this case, mortar or concrete is filled in the connection hole 15 or the concave hole 31 and solidified.

FIGS. 28 and 29 show the form of the butt-connecting portion of the plate-like body 1i as shown in FIGS. 21 and 23. Corners 35b are formed at the corners of the bodies 1i, 1i, 1i, 1i, and U-shaped connecting hook bars 35a are protruded from the corners 35b, respectively. By attaching a connecting tool 35 such as a shackle or a U clevis between the hook bars 35a, 35a, the respective plate-like members 1i are connected to each other. Generally, such a connecting portion is left connected by a ring-shaped connecting member 35 such as a shackle or a U clevis, so that a bendable action can be obtained between the connected portions 1.

According to the present invention as described above, there is provided a protective floor block comprising a rectangular plate-like body and a U-shaped block for supporting the plate-like body, taking a suitable height from the bottom of the water to make the plate-like body. It is possible to form a walking facility having an aquatic life habitat suitable for walking on the waterside by setting the above, so that it is possible to easily form a favorable walk on or near the water surface in the water surface area. .

By forming a water-passing portion in one or both of the U-shaped blocks set as described above, water flows into the U-shaped block and a bottom stone is disposed so that fish and other underwater creatures are provided. The interior of the U-shaped block is used as a habitat, and even in a case where it is set across a water flow, water is appropriately passed through the block to form a state suitable for walking on the plate-like body.

The plate-shaped body set on the U-shaped block is stably engaged and supported by forming the engagement structure with the side walls of the U-shaped block on the bottom surface of the rectangular plate-shaped body. It is possible to form a structure of an integrated protection floor block.

A plurality of sets of U-shaped blocks having a planar shape corresponding to a plate-like body formed in a rectangular shape in a plane are set so that the length direction thereof is along the width direction of the water channel or the water flow direction. In this way, a bedguard with water surface walking effectively adapted to waterways such as rivers is formed. Set along the shore, make a natural shoreline with a fish nest covered with green by placing logs and other items such as logs, which communicate with the plate-shaped body and the bottom of the U-shaped block and protrude from the water surface and arrange stones Become a guardian.

A plurality of rows of the plate-shaped member and the U-shaped block as described above are provided in close contact and parallel to each other, and a joint member is provided between connecting rings formed at the joint corners of the plate-shaped members. A plurality of unit blocks manufactured and prepared as a plurality of unit bodies by being connected in a bendable manner are used to connect the unit blocks in a bendable manner so as to cause damage especially in the vicinity of the connection portion under walking or flowing water conditions. To prevent danger and form a durable floor protection.

By disposing a stepping stone-shaped projection on the upper surface of the rectangular plate-like body, a walking part protruding from the plate-like body is formed, and a preferable walking part is formed even when the water flow increases.

By projecting the surrounding side in a frame shape, a stone or the like can be filled in the frame-shaped projection to provide a habitat for aquatic organisms, and a vegetation material is inserted in the frame-shaped projection. By forming the floating island vegetation area, it becomes possible to get close to the vegetation together with the waterside.

[0038]

According to the present invention as described above, the upper plate-like body of the protection floor block near the waterside or the water surface such as a river, a lake, a marsh, or a waterway in a park is formed as a walking part, and sufficient pedestrians are provided. It is possible to give the friendliness to the waterside by approaching to the water area, and to make the lower part of such a protection bed a habitat or evacuation area for fish and other aquatic organisms, and to make the plate-like body a frame It is an invention that has the effect of forming a favorable environment by promoting the growth of waterside plants by being formed, and is industrially highly effective.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a representative example of a U-shaped block according to the present invention.

FIG. 2 shows another representative U-shaped block according to the present invention.
FIG. 4 is a perspective view showing an example.

FIG. 3 is a perspective view showing still another typical example of the U-shaped block according to the present invention.

FIG. 4 is a perspective view showing still another example of a typical U-shaped block according to the present invention.

FIG. 5 is a perspective view showing another typical example of the U-shaped block according to the present invention.

FIG. 6 is a perspective view showing a typical example of a rectangular plate-shaped body in which a pseudo stone pattern or a main stone is buried according to the present invention.

FIG. 7 is a perspective view showing a representative example of a rectangular plate-like body formed by embedding a pseudo wood or a log or the like according to the present invention to form a stepping stone.

FIG. 8 is a perspective view showing a typical example of a rectangular plate-like body provided with a stepping-stone-like projection according to the present invention.

FIG. 9 is a perspective view showing a typical example of a rectangular plate-shaped body made of a pseudo plate or a stake according to the present invention.

FIG. 10 is an oblique view showing a typical example of a rectangular plate-shaped member formed into a monolithic shape according to the present invention.

FIG. 11 is a perspective view showing a typical example of a rectangular plate-shaped body united with a connecting log according to the present invention.

FIG. 12 is a perspective view showing a representative example of a rectangular plate-like body having a recess formed therein and having a pseudo-stone pattern at the top of the frame according to the present invention.

FIG. 13 is a perspective view showing a representative example of a rectangular plate-like body having a recess formed therein and a frame made of pseudo wood according to the present invention.

FIG. 14 is a perspective view showing a representative example of a rectangular plate-like body having a surface formed of a pseudo-stone pattern of boulders or a natural stone material according to the present invention.

FIG. 15 is a perspective view showing a typical example of a rectangular plate-like body in which cobblestones are laid inside a frame according to the present invention.

FIG. 16 is a perspective view showing a typical example of a rectangular plate-like body in which a stone material is fitted to both side log patterns according to the present invention.

FIG. 17 is a cross-sectional view of a state where a plate-shaped member is set on a U-shaped block.

FIG. 18 is a cross-sectional view of a bed guard block according to the present invention provided in a state crossing a waterway.

FIG. 19 is a partial plan view of what is shown in FIG. 18;

FIG. 20 is a cross-sectional view of a state in which the bed guard block according to the present invention is provided in a state parallel to the channel flow direction but is orthogonal to the channel flow direction.

FIG. 21 is a partial plan view of what is shown in FIG. 20;

FIG. 22 is a cross-sectional view of a state in which the bed guard block according to the present invention is provided in a jetty shape with respect to the flow direction of the water channel but is orthogonal to the flow direction of the water channel.

FIG. 23 is a partially cutaway plan view of the one shown in FIG. 22;

FIG. 24 is an example of a cross-sectional view of a plate-like body integrally incorporating a vegetation bag.

FIG. 25 is another example of a cross-sectional view of a plate-like body integrally incorporating a vegetation bag.

FIG. 26 is an example of a partial cross-sectional view showing a mounting state of a plate-like body to a U-shaped block.

FIG. 27 is another example of a partial cross-sectional view showing a mounting state of a plate-like body to a U-shaped block.

FIG. 28 is a partial plan view of a top plate body connecting portion.

FIG. 29 is a cross-sectional view of what is shown in FIG.

[Description of Signs] 1 Rectangular plate-like body 1a, 1b,..., 1k, 11 Rectangular plate-like body 2 Water-blocking blocks 2a, 2b, 2c, 2d Water-blocking block 3 Natural stone material or construction waste material 4 Fish 5 Water surface 6 Shore 7 Revetment wall 8 Prop material 9 Drainage control 10 Through hole 10a Through hole 11 Stepping-like projection 11a Projection 12 Pseudo wood or Motoki stepping stone 12a Pseudo wood pattern 13 Stereoscopic pseudo stone pattern or Natural stone 13a Pseudo-stone pattern 14 Fitting hole 15 Connecting hole 16 Connecting log 16a Crossing log 17 Fastening hole 18 Depressed portion 19 Log pattern projection 20 Side wall 21 Projection 21a Projection 22 Opening 23 Opening 23a Opening (notch) Shape) 24 opening 24a opening (notch shape) 25 recess 26 attachment hole 27 recess 28 opening 29 cobblestone or cobblestone pattern 29a split stone pattern 30 vegetation bag 31 recess 32 connecting bolts 33 insert material 35 connector (shackle or U clevis) 35a coupling (hook muscle) 35b angle up portion 36 connecting hole 36a connecting muscle 37 meshed protection section member

Claims (7)

[Claims] An upper surface of a rectangular plate-like member is made of a pseudo-stone, a pseudo-wood pattern, a natural stone or wood itself, or a plate-like member formed by being buried and a U-shaped cross section for supporting the plate-like member. It is made of a block, and a water passage portion is formed on one or both sides of both sides of the U-shaped block, and an opening or a recess is formed on the bottom so that natural stone or construction waste can be filled. Protective floor block considering human walking and ecosystem. 2. The rectangular plate-like body has a peripheral side projected in a frame shape, a drain hole is formed in the plate-like body, and a vegetation material or a stone material is filled in the frame. 2. The protective floor block according to 1 above, which takes into account human walking and ecosystem. 3. A rectangular plate-shaped body and a through-hole communicating with the bottom plate of the U-shaped block are formed, and a main tree such as a pseudo wood or a log is protruded from the plate-shaped body and arranged. The protective floor block according to any one of claims 1 and 2, wherein consideration is given to human walking and ecosystem. 4. A rectangular plate-like body having a plurality of through holes formed therein, and a vegetation material is integrally formed on a bottom surface of the plate-like body according to an inner width of the U-shaped block. Items 1-3
3. The protective flooring block according to any one of the above, considering human walking and ecosystem. 5. The U-shaped block according to claim 1, wherein an engaging structure is formed on upper portions of both side walls of said U-shaped block, and a connecting structure is formed on said rectangular plate-like body. The protective floor block according to any one of the above, considering human walking and ecosystem. 6. A human walking or ecosystem characterized by forming hook streaks for joining at the joining corners of the rectangular plate-like body according to any one of claims 1 to 5. Considerable guard block. 7. A plurality of sets of a bed protection block composed of a rectangular plate-like body and a U-shaped cross section are set continuously or stepped along the length direction, the width direction of a river, or the direction of water flow, or a shore is provided. A floor guard that takes into account human walking and the ecosystem characterized by being set to project more perpendicularly.