JP2002105928A - Revetment block and slope face construction method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a revetment block constituted of a novel structure and a slope face construction method using the same capable of forming a natural and strong development and extremely rapidly recovering ecosystem for vegetation of plants and inhabitants. SOLUTION: Exposed metallic parts 21, 21... are protruded on the block body 11 having corner notched parts 2, 2... so as to form a planar profile, and an anchoraging part 4 having a penetrated portion at the nearly central part is formed and further, protruded parts 5, 5... having a specified height and discontinuous parts at mutually crossing sections are protruded to form the revetment block 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a slope forming technique for revetment and the like, and in a conventional revetment improvement using a concrete block, the waterside environment is artificially constructed. However, the present invention was designed to change the surrounding ecosystem to a considerable extent, but this invention provides facilities that include rivers, dams, harbors, road slopes, piers, etc. with durability equal to or higher than before. While securing, in particular, it is possible to create natural terrain, and it is possible to recover the vegetation of plants and the ecosystem of inhabiting animals very early before construction,
An object of the present invention is to provide a revetment block having a novel structure and a new slope construction method using the same.

[0002]

2. Description of the Related Art Flood control projects in Japan have fallen far behind the dramatic development of cities, and many of the embankments that appear to have already been completed are highly expensive. Not only is the basic embankment function, such as pod width, not always sufficient, but also the embankment auxiliary functions related to the structural strength of the embankment, such as seawalls that protect the embankment from scouring and the embankment, must be reinforced. Many of the important places that are deemed to be still untouched have left many cities alone threatened by floods, and flooded. Many retarding ponds and lowlands that have allowed for rainfall, as well as hills and forest wilderness that store and infiltrate rainfall are being created and converted into residential land one after another. The amount of water flow increases in a short period of time, and the time to flood occurrence time is extremely shortened, and in basins that have been once hit by heavy rainfall, thorough measures against floods are taken. Soon, the urban area will be damaged by floods, as soon as it is destroyed at a point where maintenance was delayed, it will burst into high-density urban areas, surely paralyzing urban functions and damaging precious human lives. It is obviously vulnerable.

As countermeasures against such delays in the flood control business, construction efficiency is relatively high, there are many construction companies, structural strength is excellent, and reliability and economy are high. Many revetments, most recently, are recommended to be constructed with cast-in-place concrete structures or concrete blocks that can be mass-produced in factories, and for many years there has been an effort to resolve any delays. Had been continued. However, the embankment that solidifies the slope with these concretes, although it is a countermeasure against lag, can significantly alter the natural environment of the river basin, reduce the purification effect, and cause water pollution. Regardless, especially in the case of revetments using concrete blocks, if the foundation part of the foundation part is settled due to scouring etc., it will lead to catastrophic collapse, so the rapid flow point is solid In fact, from the safety aspect in consideration of the collapse due to the flood to the entire area of river improvement, it has been forced to use three-sided embankment with concrete,
At present, the worse the concrete flood control project, the worse the natural environment.

In recent years, the necessity of overcoming the current situation has been re-examined. Based on the same or higher judgment as to the importance of countermeasures for emergency flood damages caused by the delay of flood control projects, river river Emphasizing environmental issues, based on the basic philosophy that rivers are part of the natural environment and river basins are natural public properties, along with river renovation as a safety measure, conservation of the natural environment, and rich and moisturizing It is necessary to use rivers and flood control projects that can be realized together with the creation of various environments, and the course of river environment maintenance and renovation that takes into account the natural nature and hydrophilicity that are familiar to local residents has been revised, and flood control and water use have been implemented. Construction of revetments suitable for the environment is being promoted.

[0005] As examples of such movements, a number of things made of a woody material, such as a combination made of thinned wood in a lattice shape, a scent of bundles of miscellaneous trees, etc., are connected, and a square is formed. The revetment structure, which forms a woodwork retaining wall and a woodwork sediment by arranging them in such a way as to combine them with earth and sand or stone, etc., which has almost the same durable strength as concrete, has been reviewed, and a large number of them will be actually constructed. As a result, the natural scenery of vegetation on the riverbank has revived,
It has been reported that the inhabitation of various flora and fauna has begun to be confirmed, and that the purification of rivers has also progressed steadily and has greatly contributed to the improvement of water quality. Laying is also a method that was commonly used before the appearance of concrete, and although it is certainly suitable for realizing a structure that is friendly to nature, it is extremely inefficient in construction work and its structure, especially Depending on the solidification, the seawall strength may be extremely reduced, or a considerable period of time may be required until the seawall strength is established, which may cause problems such as impairing the safety during that time.

[0006] The present invention addresses the above situation,
It does not hinder the realization of a natural landscape that is popular with people and a natural environment suitable for the propagation of flora and fauna, and is as strong as a concrete revetment facility. Judging from the possibility that it would not be possible to realize a seawall structure with sufficient structural strength to withstand even weak terrain or subsidence, etc. As a result of conducting research and repeating trial-and-error and numerous trial productions and experiments over a long period of time, this time, finally, a revetment block with a new structure and a new slope construction method using it will be realized. The configuration has been described in detail below, together with some embodiments representative of the present invention shown in the drawings.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As will be clearly understood from the embodiments of the present invention shown in the drawings, the revetment block included in the present invention basically has the following configuration. is there. That is, a planar contour is a polygon-like block main body having corner cutouts at least at three corners, and an exposed metal fitting is projected and formed at each corner cutout of the block main body. At the approximate center, a fixing portion is formed in a penetrating shape in the thickness direction or a depressed shape in which a thin portion is left in a part of the thickness direction. Straight or curved,
Alternatively, it is a seawall block configured by combining a straight line and a curve and projecting and forming a projecting ridge having a predetermined height that is discontinuous if there is a portion that crosses each other.

[0008] A more concrete construction of the revetment block having this basic structure is as follows. A planer contour has four corners, each of which has a quadrangular corner cutout, and approximately the center of each side. Each of the block main bodies has a square-shaped block main body having a semicircular end notch. On the upper surface of the block main body around which is formed a circular fixing portion that is formed in a penetrating shape in the thickness direction or a depressed shape leaving a thin portion partially in the thickness direction,
It can be said that the revetment block has a substantially girder shape in a plane, and has a configuration in which a projecting ridge portion having a predetermined height in which the intersection of the girder is discontinuous is projected and formed.

[0009] More specifically, the planar contour is a square block body having corner cutouts at least at four corners, and each of the block cutouts is provided with a protruding metal fitting at each corner cutout. At the same time, a fixing portion is formed in a substantially central portion of the block main body so as to have a penetrating shape in the thickness direction or a depressed shape having a thin portion partially left in the thickness direction, and a block around the fixing portion. The upper surface of the main body is formed by projecting and forming a convex ridge portion having a predetermined height in which the cross section of the cross beam is discontinuous, and is formed in the same plane in the same plane. When the body is laid continuously in abutting form,
The four exposed metal parts, each of which has a corner notch in each of the four adjacent block bodies, which are protruding into the space formed adjacent and facing each other, are combined with separate connecting metal fittings. It can also be said that it is a revetment block whose structure is to be connected so as to be connected.

The block main body is fixed in the ground and functions to reinforce and reinforce the slope, and a plurality of blocks spread in a predetermined range are connected and integrated with each other to prevent collapse or falling off. It must be formed in a planar shape, such as a triangular, rectangular or hexagonal, polygonal shape that can be laid almost adjacently without forming unnecessary gaps. Must be
Made of concrete with sufficient weight and durable strength to easily settle in the water on the riverbank, coast, etc., riverbed, seabed, lakebed, etc. It is also possible to have a porous structure with ventilation and water permeability as long as it has the following. It is necessary to form a mounting hole that allows the mounting hole.

The corner notch is formed by forming a notch-shaped notch at the corner of the block body, allowing the mounting bracket to be installed in the space, and connecting adjacent block bodies to each other. It fulfills the function of realizing a space, is formed in a concave shape by opening at least the upper part and a part of the side,
When the corner cutouts of a plurality of block bodies are adjacent to each other and opposed to each other, a space is secured so that the connecting fitting formed separately from the exposed fitting can be attached to the exposed fitting from above. It must be set to a size and shape that allows it.From the viewpoint of manufacturing or handling, all corner notches are formed in the same shape, and the fixing strength to the soil It is desirable to adopt a configuration in which no variation is caused.

[0012] The exposed metal part is formed so as to protrude from a corner notch formed in each block main body, and is united with that of another adjacent block main body by a separate connecting metal part. It must fulfill the function of realizing the connection structure and must have at least enough strength to withstand lifting of the block main body, and to have a substantially annular shape that can be connected using a separate connection bracket. It is desirable to form it, but it is also possible to make it into a hook shape that can be directly connected to the adjacent exposed metal part, or an engagement metal part that can be connected and disconnected like a padlock that can be opened and closed. , One is hook-shaped, and the other on the other side is
There is no problem if the hook-shaped portion is formed into an annular shape capable of engaging.

When the notch is buried in the ground,
The peripheral part of the block body engages with the surrounding soil and stones to increase the frictional force and fulfill the function of strengthening the fixing force.If it does not have a shape that penetrates or sinks in the vertical thickness direction Not as a concave or uneven shape,
It is desirable to secure a space that connects the underground side and the ground side, and to have a structure that can maintain the ecosystem by ensuring water permeability and air permeability, and the adjacent peripheral parts of adjacent block bodies However, it is possible to have a concave and convex shape that meshes with each other in a state in which they cannot move with each other. A structure in which small holes penetrating in the vertical thickness direction so as to be optimal for driving other piles can be formed.

The fixing section accommodates a part of the soil, stones and the like spread over the upper part in a substantially central portion of the block body to enhance the fixing power to the underground and easily lay the laid soil and stones. In order not to be leaked or separated, it functions to strengthen the fixing force on the block body, and although its planar shape is not particularly limited, it is difficult to manufacture or handle. In consideration of the appearance of the product, etc., the corner cutouts should be formed to be approximately equal or similar to the space shape formed by gathering the corner cutouts, and those that penetrate vertically In addition to the above, it is also possible to form a depressed shape having a thin portion formed at a substantially central or bottom side in the vertical thickness direction, and further, a small hole penetrating vertically is formed in the thin portion. , Wooden and other small piles It should be.

The protruding ridges are provided so that the upper surface of the block body is engaged with the soil and stones laid on the upper layer so as to enhance the fixation in the ground, and conversely, the outflow of the soil and stones laid on the upper layers, It has the function of preventing detachment, and must be formed to have a discontinuous convex shape surrounding the fixing part in the center of the block main body so as to ensure the continuity of the soil and stone of the upper layer. Should be formed in a convex or ridge shape arranged in a curved shape or a linear shape including a waveform in which the other part is discontinuous, and in order to obtain a strong fixing force, it is necessary to use two orthogonal directions. It is desirable to arrange them in a substantially cross-girder shape on a plane, and to protrude at a predetermined height where the crossing portions are discontinuous.

[0016] The connecting metal fittings can connect the exposed metal fittings of the plurality of revetment blocks laid in abutment form at a time. As a result, the whole of the plurality of laid revetment blocks is a single plate. It must have sufficient strength to prevent it from being accidentally detached or damaged by external force applied to the revetment block. Must be of a structure that can be easily installed at the laying site of the revetment block, does not require welding or caulking work, and uses general tools such as manual work or a spanner wrench It should be formed so as to have a structure that can be easily and quickly mounted, and in some cases, it is of course possible to substitute a known connection fitting such as a shackle.

[0017]

[Related invention] In relation to the above-mentioned revetment block, the present invention also includes a slope construction method using the revetment block of the present invention having the above-described configuration, and the gist of the configuration is as follows. However, it is basically as follows. That is, the ground to be the construction area is leveled in a smooth shape, a mat for fixing is laid directly on the ground, or a plurality of revetment blocks are laid continuously in abutting manner, and each one is cut into a corner. The plurality of exposed metal parts, each of which has a protruding shape in the space formed by the notch part being adjacent and facing each other, are connected together by a separate connecting metal part, and the whole is integrally connected and then adjacent. A fixing portion formed in a penetrating shape in a space formed by the end notches of the block main body being adjacent to each other and facing each other and substantially in the center of each block main body, or a fixing portion formed in a depressed shape in the thickness direction of the block main body. A wooden small pile is set up at all points of the small hole drilled in, or at a place selected as appropriate, and soil, gravel,
This is a slope construction method in which stones and the like are spread and wooden stakes that have become protruding are entangled in a bristle-like manner with a bundle of scents to form a fence.

Further, in the slope construction method having the basic configuration, more specifically, the ground to be the construction area is leveled in a smooth shape, and a mat for fixing is laid directly or on the ground. The revetment blocks are laid continuously in abutting fashion, and a plurality of exposed metal fittings, each of which has a corner notch protruding into the space formed adjacent and facing each other, are separated. The whole block is connected together by the body connecting bracket, and the whole block is connected integrally.The end notches of adjacent block bodies are adjacent to each other, penetrate into the space formed facing each other, and substantially the center of each block body. The wooden small piles are set up in all locations of the small holes formed in the fixing portion formed in the shape of the block, or in the fixing portion formed in the thickness direction of the block main body in the depressed shape, or at a suitably selected portion, and the ridge portion is formed. Soil, gravel, up to near height
A stone or the like is laid, and between the small wooden piles in the protruding shape, the appropriately bundled scent is entangled in a bridging manner so as to form a fence, and the area surrounded by the scent and the vicinity thereof are formed. It can be said that the method is a slope construction method that has a configuration in which a sowing net body or a sowing sheet body formed by appropriately sowing plant seeds is laid and fixed on an upper layer thereof, with soil covering and leveling compaction.

In other words, in other words, the ground to be the construction area is leveled in a smooth shape, a mat for fixing is laid directly on the ground, or a plurality of revetment blocks are abutted. Continuously laying, a plurality of exposed metal parts that are each protruding in the space formed by the corner notch part of each one adjacent and facing each other, are connected together by a separate connecting metal fitting, After connecting the whole integrally, the end notches of the adjacent block bodies are adjacent to each other, in the space formed facing each other,
And wooden fixing holes formed in the fixing portion formed substantially in the center of each block main body, or all the small holes formed in the fixing portion formed in a depressed shape in the thickness direction of the block main body, or at an appropriately selected position. While setting up the pile, spread soil, gravel, stones, etc. to the height of the protruding ridge, and wrap the appropriately bundled scent over the small wooden pile that has become a protruding shape to form a fence. It can be said that this is a slope construction method in which the chestnut stone is laid in a filled shape in the area surrounded by the scent and around the periphery thereof and is fixed.

The ground to be the construction area includes all the terrain in which the slope construction method using the seawall can be performed, and specifically includes a riverbank, a riverbed, a dam, a shore, a harbor, and the like. It can be said that it is the slope of the road, etc. For example, revetment work, method work, method lining, embankment work, dike work, protection work,
For culvert drainage, etc., it is possible to install it on continuous ground from sloped land to flat land by constructing a structure that connects multiple revetment blocks with separate connecting brackets.
Since the connecting part by the connecting bracket can exhibit sufficient flexibility, the construction area is also applicable to places where scouring is likely to occur due to rapids, floods, etc., and soft ground where uneven settlement is likely to occur. It is possible to

The fixing mat prevents the earth and sand from flowing away from the gap between the revetment blocks and the collapse of the moat due to scouring, and is interposed between the plurality of revetment blocks and the ground. It can be used to prevent unnecessary submersion of the revetment block and the movement of displacement, or to prevent water from penetrating. Use a material that has sufficient strength so that it will not be lost.Use a water-permeable sheet made of natural fiber material or synthetic fiber material, or use a waterproof sheet made of synthetic rubber or synthetic resin. Is possible.

The small pile serves to support a bundle of scents forming a pier in any place where the soil, stones, etc. of the revetment block are spread, and the stakes are entangled with the stakes. It should be made of a wooden material that has sufficient dimensions and strength to support the fences to be made, and although it is possible to use processed wood or glulam, it is necessary to use thinning for effective use of resources. It can be said that it is desirable to use natural wood such as lumber, which has a relatively low utility value, and to sharpen the tip of the natural wood to make it easy to drive.

The scent is entangled in a bridging manner between small piles and has a function of forming a fence-shaped penetrating portion.
It has a moderately permeable, woody material with firm and viscous properties, and is a hardwood that naturally inhabits,
Specifically, the degree that can be attached between small piles from various branches of various trees such as chestnut, oak, kuromoji, cattle killing, camellia, witch hazel, oak, maple, cherry, ego, ryobu, rowan, etc. After having been roughly cut into those of the length dimensions, they were bundled together so as to have an appropriate diameter, and then bundled using wire, vinyl string, rope, straw rope, etc.,
It is designed to prevent accidental collapse and separation, and when it is buried in the soil and elapses for a suitable period of time, it naturally settles, vegetates, prospers, and becomes a bush again, and can be used as a raw material for coarse scent It will be.

The sowing net and the sowing sheet body are used to propagate flowers, plants and the like on the surface layer of the ground subjected to the slope construction method. It plays a function of restoring the system, and is made by spraying paint containing plant seeds onto a net or sheet made of biodegradable material, or by applying and drying an adhesive containing plant seeds It is possible to use things that have already been used for this primary purpose, such as things, and lay them so that they will not easily move until the plants are fully settled, using piles, weights, etc. Must. Hereinafter, the present invention will be more clearly understood by adding specific explanations to some embodiments representative of the present invention shown in the drawings.

[0025]

Embodiment 1 A perspective view of a seawall shown in FIG. 1, a perspective view of a state where a seawall is installed in FIG. 2, and a perspective view of a connection structure between seawalls in FIG. Formed on a block body formed in a square-like planar contour shape having a corner cutout at a corner, showing a typical embodiment of a revetment block having the basic constitution of the present invention. And revetment block 1
Consists of a concrete block main body 11 having a plane outline shape with a side set to a dimension of about 1 m, a top and bottom thickness dimension of about 160 mm, and four corners each having a radius of about 120 to 150 mm. Are formed in the vertical fan-shaped corner notch portions 2, 2,... In the vertical sector thickness direction. End cutouts 3, 3, ... that form a semicircular fan shape with a plane semicircle shape of about 150 mm
Are formed over the upper and lower thick portions.

A substantially U-shaped exposed metal fitting having a base portion embedded in the block main body 11 in a state of being buried in the block main body 11 is provided on a wall portion substantially at the center of the corner notches 2, 2,. Part 2
Are provided so as to protrude toward the square diagonal direction of the block main body, and a flat circular fixing portion 4 having a diameter of about 240 to 300 mm is provided at the center of the block main body 11 in the vertical thickness direction. And the fixing portion 4
Are arranged on the upper surface of the block main body around 120 mm in width, about 120 mm in height and about 120 mm in height, and are arranged in a substantially cross-shaped girder plane, and one of the intersections is not crossed. It protrudes and is formed in a continuous part.

The plurality of revetment blocks 1, 1,... Can be laid in a state where they are laid out in an orderly manner on the ground leveled as shown in FIG. 2, and are shown in FIG. Four seawall blocks 1
Exposed metal parts 2 arranged adjacent to each other and opposed to each other
.., 1, 2,... Are combined by a separate connecting metal fitting 6 made of a shackle, and can be integrally connected.

[0028]

Embodiment 2 FIG. 6 shows a perspective view of a revetment block having a depressed anchoring portion, showing another embodiment included in the revetment block of the present invention. The revetment block 1 has a substantially flat square shape and is configured to ensure waterproofness. The revetment block 1 has the basic shape shown in FIG. 1 except for the thin portions 41, 41,. Corner notch 2,
Each of the end notches 3, 3,... And the fixing portion 4 is formed in a depressed shape, and thin portions 41, 41,. At the center of the fixing unit 4, a diameter 20 penetrating the thin part 41 in the vertical thickness direction is provided.
It is formed by drilling a small hole 42 of about 50 mm.

[0029]

The revetment block 1 of the present invention having the above-described structure is a perspective view of a state in which the revetment block of FIG. 2 is installed, and a perspective view of a state in which soil is covered on the revetment block in FIG. In the perspective view in which the spar is applied to the revetment block of FIG. 5, the process can be performed by a slope construction method using the revetment block showing each process. That is, as shown in FIG. 2, a sloping ground, which is a construction area, is leveled smoothly, and at the same time, settlement of a block at the time of installation is prevented, and a felt-like mat 7 made of thick natural fiber capable of securing water permeability. Laying, along the lower end of the site of the construction area, cast a water stop sheet pile (not shown) to a predetermined depth, so that the fitting groove formed on the lower surface at the upper end of the water stop sheet pile is engaged. ... or install a formwork on the upper end of the cut-off sheet pile, pour concrete milk into the formwork, and directly hit the method blocks 8, 8, ... To be formed.

.., Which are arranged linearly as described above, and a plurality of the revetment blocks 1, 1,... Shown in FIG. Corner notches 2,2,2
The plurality of exposed metal parts 21, 21,... Each protruding into the space formed by... Are integrally integrated by a separate connecting metal part 6 made of a shackle, and bent in a certain angle range. The entirety of the revetment blocks 1, 1,..., Which are laid over the construction area, are connected in a state where the flexibility is secured.

As shown in FIG. 4, a substantially cylindrical space formed by opposing end notches 3, 3 formed in a plane semicircle, and fixing portions 4, 4,... In the vicinity of each center, wooden small piles 43, 43,... Having a predetermined height are set up, and the space portions and the fixing portions 4, 4,. Including ridges 5,
After the soil has been spread to the vicinity of the height of 5,..., As shown in FIG.
A scent 4 bundled between adjacent ones of…
4, 44, ... are entangled in a bridging manner, and key points are tied up into a fence using ropes, vines, etc., assembled, and wooden small piles 43, 43, ... and scabs 44, 44, ... The soil, sand, and rubble stones are spread all over the area of the fence structure assembled by and around the area to form a uniform compaction, and plant seeds are fixed on the upper layer if necessary, not shown. Lay the seed sheet.

Further, as shown in FIG.
2,..., The edge cutouts 3, 3,... And the shore protection block 1 having the thin portion 41 formed near the bottom surface of the fixing portion 4 are also laid. Substantially the same laying is possible. If a sheet made of a material such as natural rubber or synthetic resin is used for the mat 7 laid under the seawall blocks 1, 1,... , 43,... Are set up in the small holes 42 of the fixing section 4, and the space formed by the corner cutouts 2, 2,... And the end cutouts 3, 3,. Wooden small pile 4
, Etc. can be buried to the depth that the lower ends of the thin portions 41 reach the thin portion 41, and the scents 44, 44,.

[0033]

As described above, according to the revetment block of the present invention, when transporting and laying a factory-produced block, the exposed metal fittings provided at the four corners are suspended and moved by a crane or the like, and the construction area is reduced. By laying the blocks adjacent to each other and connecting together a plurality of exposed metal parts arranged in a confronting manner with separate connecting metal fittings, the adjacent blocks are
It is integrated in a state where it can be bent within a predetermined angle range, and even if terrain changes such as settlement at the installation location occur, it prevents the blocks from being carelessly peeled off or sinking and the slope is collapsed If it is buried in the ground with soil or stones filled in the notch or anchor, the solid anchoring structure will be formed by connecting the soil between the ground surface and the underground sandwiching the block body. In addition, a small pile is set up in the space formed by the fixing part and the end notch, and the scent is entwined,
Since it is a structure that can form a scabbard fence or a scabbed sediment, it has excellent features that it can create a slope that is friendly to the natural environment without dividing the ecosystem.

According to the slope construction method using the revetment block of the present invention, a plurality of revetment blocks are connected in a spread state and buried in the ground, thereby providing a solid slope by a concrete block. Can be formed, and small piles are erected in each of the space portions formed by the anchoring portion and the end notch portion of the seawall, and stubble is entangled between the small piles, so that only the concrete block can be obtained. A slope that can secure the natural ecosystem that could not be maintained can be realized, and after construction, a good natural environment can be restored. Filled and laid with sand, sandstone, etc., it prevents soil erosion and scouring at the shore and riverbed, promotes the growth of aquatic plants, creates good fish reefs, and Pull out the purification effect, outside of it is possible to maintain a clean water quality by suppressing the occurrence of contamination,
In the part that was installed on land,
The excellent effect that the natural environment equivalent to that before the rehabilitation can be restored in an extremely early stage as a seeding net body or sowing sheet body is laid and settled will be exhibited.

In particular, the revetment block described in the embodiment,
In addition to the above-mentioned features, the slope construction method using the same is characterized in that one side of the revetment block 1 having a flat square shape is set to a size of about 1 meter, so that it is formed larger or smaller than that. In addition to being able to perform the laying operation more efficiently than the block, as shown in FIGS. 1 and 3, the fixing portion 4 and the opposed notch portion 3,
3 has a diameter of 240 to 30
By adopting a structure that is aligned in a substantially cylindrical shape of about 0 mm, the connection strength of the upper ground layer over the laying range when buried in the ground is made uniform and the overall water permeability is uniform. Therefore, it is possible to obtain an effect that it is possible to simultaneously secure both the slope strength and the preservation of the natural environment.

Also, the ridges 5, which are formed in a substantially cross-girder shape on a plane,
The crossover portions of 5,... Are discontinuous, so that the connection strength of the upper layer covering soil over the laying range can be ensured, and the slope can be formed with improved drainage. There is a structure in which scabs 44, 44,... Are entangled between wooden small piles 43, 43,... Erected in the spaces formed by the notches 3, 3, respectively. Compared to a stake fence with wooden small piles 43, 43,... Erected directly on the ground, it can be expected to have a much stronger anchoring power. There is concern about the durability of scouring and sedimentation, so it is easy to realize natural savory fence work while ensuring sufficient strength in places where installation was impossible. It has characteristics.

As described above, the revetment block of the present invention,
And the slope construction method using it makes it possible to achieve the intended purpose uniformly by its new structure, and it is also easy to manufacture, and the slope facility only laid the conventional concrete block In comparison with the above, it is superior in durability against scouring and sedimentation, it can be much more economical from a long-term perspective, and the efficiency of construction work itself can be greatly increased, The reduction and the shortening of the construction period can be reliably achieved, and it is very effective in preserving the natural environment. As a revetment structure that can fully satisfy the functions that were originally required for revetment of environmental protection, river managers and the construction industry are firmly reputed, and highly evaluated by the general public When It, available across a wide range, is expected to continue to spread.

[Brief description of the drawings]

The drawings show some typical embodiments embodying the technical idea of the revetment block of the present invention and a slope construction method using the same.

FIG. 1 is a perspective view showing the structure of a revetment block.

FIG. 2 is a perspective view showing an operation of laying a revetment block on a slope.

FIG. 3 is a perspective view showing a connection structure of a revetment block.

FIG. 4 is a perspective view of a slope showing a state where a wooden small pile is set up.

FIG. 5 is a perspective view showing a state in which the scent is installed in a fence shape.

FIG. 6 is a perspective view showing a seawall block having a thin part formed near a bottom surface.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Revetment block 11 Same block main body 2 Corner notch part 21 Same exposed metal part 3 End notch part 4 Fixing part 41 Same thin part 42 Same small hole 43 Same wooden small pile 44 Same loose lobe 5 Convex section 6 Connection fitting ( Shackle) 7 mat 8 block

Claims (7)

[Claims] 1. A polygonal block main body having a plane contour having at least three corner cutouts at each of three corners, and an exposed metal fitting is projected and formed at each corner cutout of the block main body. At the approximate center of the block body, there is formed a fixing portion that is formed in a penetrating shape in the thickness direction or a depressed shape with a thin portion left in a part of the thickness direction, and the upper surface of the block body around the fixing portion. Is formed by combining a straight line or a curved line, or a combination of a straight line and a curved line, and if there is a portion that intersects with each other, a projecting ridge portion having a predetermined height that is discontinuous at the intersection portion is formed. A revetment block characterized by the following: 2. A block-shaped block having a planar contour shape comprising a square-shaped block main body having a quadrangular corner notch at each of four corners and a semicircular end notch at substantially the center of each side. Exposed metal fittings are protruded and formed at each corner notch of the main body, and at the approximate center of the block main body, a penetrating shape is formed in the thickness direction, or a thin portion is partially left in the thickness direction. On the upper surface of the block main body around which the circular fixing portion which is depressed or formed is formed, a convex portion having a predetermined height which is substantially flat and has a crossing portion of the crossing is discontinuous. A seawall block characterized by being formed by projecting and forming a ridge. 3. A block-like body having a square contour having a planer contour having at least four corner cutouts at each of four corners. Exposed metal fittings are formed at each of the corner cutouts of the block main body. At the approximate center of the main body, a fixing portion that is formed in a penetrating shape in the thickness direction or a depressed shape with a thin portion left in a part of the thickness direction is formed. , A projecting ridge having a predetermined height in which the cross section of the same girder is discontinuous is formed by projecting and forming, and the block body having the same structure is abutted in the same plane. When laid continuously in a shape, each corner notch in each of the four adjacent block bodies is adjacent,
A revetment block in which four exposed metal parts, each projecting in a space formed confronting each other, are connected together by a separate connecting metal part. 4. The fixing portion is a depressed shape having a thin portion left in the thickness direction of the block main body, and a small hole penetrating in the thickness direction is formed substantially in the center of the thin portion. The revetment block according to any one of claims 1 to 3, wherein the block comprises: 5. Leveling the ground to be a construction area into a smooth shape,
Laying mats directly or on the ground, and laying a plurality of revetment blocks continuously in abutting manner, each in a space formed with adjacent corner notches, one by one A plurality of protruding exposed metal parts are connected together by a separate connecting metal part, and the whole is connected integrally, and the end notches of adjacent block bodies are adjacent and opposed. In the space formed, and at substantially the center of each block main body, a fixing portion formed in a penetrating shape, or all locations of small holes formed in a fixing portion formed in a depressed shape in the thickness direction of the block main body, or as appropriate. A wooden pile is set up at the selected location, and soil, gravel, stones, etc. are spread all the way to the height of the ridges. No claim 1 4 slope method using revetment block according any one. 6. Leveling the ground to be a construction area into a smooth shape,
Laying mats directly or on the ground, and laying a plurality of revetment blocks continuously in abutting manner, each in a space formed with adjacent corner notches, one by one A plurality of protruding exposed metal parts are connected together by a separate connecting metal part, and the whole is connected integrally, and the end notches of adjacent block bodies are adjacent and opposed. In the space formed, and at substantially the center of each block main body, a fixing portion formed in a penetrating shape, or all locations of small holes formed in a fixing portion formed in a depressed shape in the thickness direction of the block main body, or as appropriate. A wooden pile is set up at the selected location, and soil, gravel, stones, etc. are spread all the way to the height of the ridges. To make it fence-shaped,
Covering the area surrounded by the aroma and its surroundings, covering the soil, making it into a uniformly compacted form, laying a seeding net or seeding sheet on which the plant seeds are seeded appropriately,
A slope construction method using the revetment block according to any one of claims 1 to 4, which is settled. 7. Leveling the ground to be the construction area in a smooth shape,
Laying mats directly or on the ground, and laying a plurality of revetment blocks continuously in abutting manner, each in a space formed with adjacent corner notches, one by one A plurality of protruding exposed metal parts are connected together by a separate connecting metal part, and the whole is connected integrally, and the end notches of adjacent block bodies are adjacent and opposed. In the space formed, and at substantially the center of each block main body, a fixing portion formed in a penetrating shape, or all locations of small holes formed in a fixing portion formed in a depressed shape in the thickness direction of the block main body, or as appropriate. A wooden pile is set up at the selected location, and soil, gravel, stones, etc. are spread all the way to the height of the ridges. To make it fence-shaped,
The slope construction method using the seawall according to any one of claims 1 to 4, wherein the stone is spread and filled in the area surrounded by the coarse lobe and in the vicinity thereof.