JPH11264141A - Slope face structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce cost and plant vegetation by arranging cylindrical bodies with a number of through holes on the peripheral wall and mutually connecting adjacent cylindrical bodies and filling a filler in the inside of the cylindrical bodies and arranging nonwoven cloth on the peripheral wall and laying a net used in common in the adjacent cylindrical bodies. SOLUTION: An expanded metal with a number of through holes is folded by giving a number of notches to a specified matallic plate and elongating it in accordance with required strength and environment, in the cylindrical bodies 1. In this case, nonwoven cloth is disposed at the inner peripheral wall face of the cylindrical bodies 1 and filled with a granular material such as pebbles, sand, etc. Further, a net is laid on the upper face of the nonwoven cloth to prevent the cloth from shifting. When filling the crushed stones, soil is charged on the surface thereof so as to make it possible to appropriately retain water in the soil for vegetation planted in the cylindrical bodies 1. A part of the peripheral wall is eliminated to form the cylindrical body 1 and constituted of the peripheral wall of the adjacent cylindrical body 1. In this way, the filler 2 and nonwoven cloth can be securely prevented from transferring or flowing out caused by rainwater or the like and hence, vegetation can be planted even on a slope face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to rivers, lakes, coasts,
Regarding the slopes of hillsides, valleys, etc. (herein, simply referred to as “rivers, etc.”) and structures such as seawalls (herein, simply referred to as “slope structures”).
In particular, it relates to a slope structure for the purpose of preserving the natural environment.

[0002]

2. Description of the Related Art Conventionally, when a slope such as a river is formed, concrete is poured or a concrete block is placed along the slope to protect the slope. However, with the recent trend of preserving the natural environment, the method of using the above-mentioned conventional concrete is being reviewed, and the development of a method suitable for the natural environment has been demanded.

[0003]

In response to the demand for preserving the natural environment, a hollow concrete block in which a filler such as crushed stone can be filled has been proposed and put into practical use. I have.

However, since this block is made of concrete and is heavy and difficult to handle, not only is the workability at the time of construction inferior, but also the interior space is formed too large due to the strength required for the block. Therefore, the amount of filler that can be filled into the block is limited, and the purpose of preserving the natural environment by maintaining water permeability has not been completely achieved.

Further, in the case of a concrete block, a large number of small holes cannot be formed in the peripheral wall of the block. In many cases, the material cannot be used, and the construction cost of the slope including the transportation cost of the material is increased.

The inventor of the present invention has previously proposed a conventional method of casting concrete or installing a concrete block, or a hollow concrete made of concrete capable of being filled with a filler such as crushed stone. In consideration of the problems of the block, the amount of filler to be filled by forming a large internal space is increased, thereby maintaining good water permeability and preserving the natural environment, and improving workability during construction. Laminated seawall with a large number of through-holes in the peripheral wall, which is high in cost and has no restrictions on the size of filler, etc., and can reduce the construction cost of seawall including material transportation cost In addition, there has been proposed a seawall structure in which adjacent tubular bodies are connected to each other and a filler such as crushed stone is filled inside the tubular bodies (1997 Patent Application No. 99746).

In this revetment structure, the required strength can be easily obtained simply by laying a steel tubular body having a large number of through holes in the peripheral wall on the revetment and adjusting the thickness of the steel material used. It is possible to form a large internal space and increase the amount of filler to be filled, thereby maintaining good water permeability and preserving the natural environment. Compared with the block, the weight is smaller, the handling is easier, and the connection work between the adjacent tubular bodies can be made easier, so that the workability at the time of construction is higher and the transparency formed on the peripheral wall is higher. Only by adjusting the size of the holes, it was possible to cope with various types of fillers, and the remarkable operation and effect that the construction cost of the revetment including the transportation cost of the materials could be reduced was achieved.

According to the present invention, a ground portion of the seawall structure in which the steel tubular body is laid on the seawall, that is,
Regarding the improvement of the slope (including the above-ground portion other than the sloped surface in the present specification), the internal space is made larger to increase the amount of filler to be filled, thereby maintaining good water permeability and maintaining natural water permeability. The environment can be preserved, workability during construction is high, and there are no restrictions on the size of the filler, etc., and construction costs on slopes including material transportation costs can be reduced, and greening can be achieved. It is an object to provide a slope structure that can be achieved.

[0009]

In order to achieve the above object, a slope structure according to the present invention is provided by laying a metal tubular body having a large number of through holes in a peripheral wall on the slope, and forming an adjacent tubular body. In addition to connecting the bodies, the inside of the tubular body is filled with a filler such as crushed stone, and vegetation is applied.

In this slope structure, the required strength can be easily obtained only by laying a metal tubular body having a large number of through holes in the peripheral wall on the slope and adjusting the thickness of the steel material used. As a result, the internal space is largely formed, and the amount of the filler to be filled is increased, whereby the natural environment can be preserved while maintaining good water permeability. In addition, the metal tubular body has a smaller weight and is easier to handle as compared with the concrete block, and in addition to the fact that the connecting work between adjacent tubular bodies can be easily performed, the construction time during construction is reduced. Workability is high, and it is possible to cope with various fillers only by adjusting the size of the through hole formed in the peripheral wall, and it is possible to reduce the construction cost of the slope including the transportation cost of the material. Furthermore, since vegetation is applied to the cylindrical body filled with filler such as crushed stones, it is possible to prevent the outflow and movement of the filler due to rainwater, etc., and to easily green the slopes etc. Can be achieved.

In this case, a nonwoven fabric can be provided on the upper surface of the tubular body.

[0012] This allows the vegetation to maintain an appropriate level of water retention, to reliably prevent the outflow or movement of the filler due to rainwater or the like, and to ensure greening even on an inclined surface or the like. be able to.

Further, a nonwoven fabric containing plant seeds can be used.

Thus, greening can be achieved more easily.

[0015] A net can be laid on the upper surface of the nonwoven fabric.

Thus, the outflow and movement of the nonwoven fabric due to rainwater or the like can be reliably prevented, and greening can be reliably achieved even on an inclined surface or the like.

Further, the tubular body can be made of expanded metal.

Thus, a through-hole of any size can be easily formed in the peripheral wall of the cylindrical body, and the manufacturing cost of the cylindrical body can be reduced.

Further, the cross-sectional shape of the cylindrical body can be formed into a regular polygon, preferably a regular hexagon.

Thus, the cylindrical body can be easily connected. In particular, when the cross-sectional shape of the cylindrical body is formed into a regular hexagon, the slope structure can be a honeycomb structure.
A structure that is strong against external force can be configured.

Further, at least a part of the peripheral wall of the cylindrical body is
It can be constituted by the peripheral wall of the adjacent cylindrical body.

[0022] Thereby, the overlap of the peripheral walls of the adjacent cylindrical bodies can be eliminated, and the water permeability can be improved.
The material cost can be saved, and the manufacturing cost of the tubular body can be reduced.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a slope structure according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment in which the slope structure of the present invention is applied to a slope of a river. As shown in FIG. 2, the slope structure is such that a metal tubular body 1 having a large number of through holes formed in a peripheral wall 11 is laid on a slope 3 and a riverbed 4, and the laid tubular body 1 is laid.
The adjacent cylindrical bodies 1 are connected to each other by fasteners such as bolts and nuts, helical or ring-shaped wires, welding, or the like so that the cylindrical bodies 1 do not move due to the action of flowing water or the like.
Is filled with a filler 2 such as crushed stone.

In the present embodiment, the cylindrical body 1 to be laid on the slope 3 is provided with a step at the top so as to be laid stepwise. However, the present invention is not limited to this. It may be laid in a plane so as to be parallel to the surface 3.

The cylindrical body 1 laid on the riverbed 4 is provided with, for example, several cylindrical bodies 1A protruding every other unit so that the height of the top is different between adjacent cylindrical bodies. As a result, the scenery can be given an accent and the running water can be buffered.
A cover having a large number of through-holes formed on the surface thereof as necessary so that the filler 2 such as crushed stone filled into the inside of the tubular body 1 does not flow into the tubular body 1 laid on the riverbed 4. A plate (not shown) can be provided.

The tubular body 1 is formed with a number of cuts in a metal plate such as a steel plate or an iron-aluminum alloy plate having a thickness of several mm to 10 mm, depending on the use environment, required strength, and the like. The expanded metal is formed by forming a large number of through-holes by stretching, and the edges are connected by bolts and nuts, fasteners such as spiral or ring-shaped wires, welding, etc. Is formed so as to be a regular hexagon. In addition, the upper edge 12 (and, if necessary, the lower edge) of the peripheral wall 11 of the cylindrical body 1 can be configured so as not to form a through hole in order to increase the strength of the cylindrical body 1. . In the present embodiment, the cylindrical body 1 is formed so that the cross-sectional shape becomes a regular hexagon, whereby the slope structure is made to be a honeycomb structure. The shape is not limited, and any shape such as a polygon such as a triangle and an octagon, and a cylinder can be adopted.

In this case, when the peripheral wall 11 of the cylindrical body 1 is formed of a member having a large number of through holes such as expanded metal, a connecting tool used for connecting adjacent cylindrical bodies 1 is a bolt or a bolt. In addition to a nut, a spiral or a ring-shaped wire, for example, a dedicated fastener 7 as shown in FIG. 3 can be used. The fastener 7 has a fastener body 71 having fixed pieces 71a, 71a formed at upper and lower ends.
And the key piece 72, and the peripheral wall 1 of the adjacent cylindrical body 1.
In a state where the pieces 1 are overlapped, the fixing pieces 71a, 71a of the fastener body 71 are inserted into the through holes formed in the peripheral wall 11, and the key pieces 72 are inserted into the key holes 71b, 71b formed in the fixing pieces 71a, 71a. By inserting, the adjacent cylindrical bodies 1 are connected to each other so that they can be integrated.

The inside of the cylindrical body 1 is usually arranged as shown in FIG.
As shown in the figure, the crushed stones 21 are uniformly filled, but the filler 2 to be filled depends on the state of the slope 3 and the riverbed 4 where the tubular body 1 is laid, and other incidental requests. It can be arbitrarily selected depending on the situation. For example, when using local materials or the like, when using pebbles or sand having a particle size smaller than the size of the through hole formed in the peripheral wall 11 of the cylindrical body 1, FIG.
As shown in (b), after arranging a nonwoven fabric 23 made of a natural fiber or a synthetic resin fiber and having water permeability on the inner peripheral surface of the peripheral wall 11 of the cylindrical body 1, the granular material 22 such as pebbles and sand is filled. To do it. In addition, when purifying river water, as shown in FIG. 4 (c), crushed stones 21a,
21b and a purifying material 24 such as charcoal are filled in a layered or mixed state. In addition, as shown in FIG. 4D, a water-permeable nonwoven fabric layer 25 made of a natural fiber or a synthetic resin fiber can be formed on the upper surface of the crushed stone 21 filled in the cylindrical body 1.

By the way, as shown in FIG. 4 (e), the inside of the cylindrical body 1 laid on the slope 3 (ground portion) is provided on the inner peripheral surface of the peripheral wall 11 of the cylindrical body 1 as necessary. And the thickness is 5-30
After arranging a water-permeable nonwoven fabric 23 made of a natural fiber or a synthetic resin fiber of about mm, the granular material 2 such as pebbles, sand, etc.
2. In particular, a nonwoven fabric 2 which is filled with waste soil generated locally and has a water-permeable nonwoven fabric made of a natural fiber or a synthetic resin fiber having a thickness of about 10 to 100 mm on its upper surface, if necessary
5 can be provided. The non-woven fabric 25 disposed on the upper surface of the tubular body 1 is for preventing the plants vegetating on the tubular body 1 from retaining a proper amount of water and preventing the outflow or movement of the filler due to rainwater or the like. ,
Even on an inclined surface or the like, greening can be surely achieved. In this case, the plants vegetated in the tubular body 1 may be directly planted with a suitable plant for slope greening after filling the tubular body 1 with the filler, but before arranging the nonwoven fabric 25,
Non-woven fabric 2 sowing plant seeds or containing plant seeds
5 can be provided. In particular, by using the nonwoven fabric 25 containing plant seeds, greening can be easily achieved. Further, on the lower surface of the cylindrical body 1, a nonwoven fabric 26 having a water permeability made of a natural fiber or a synthetic resin fiber having a thickness of about 10 to 100 mm for preventing suction is further provided.
The nonwoven fabric 2 is disposed on the upper surface of the nonwoven fabric 25 disposed on the upper surface of the cylindrical body 1.
It is desirable to lay a net 27 made of metal or synthetic resin having a mesh having a size of about 50 to 100 mm to prevent the movement of No. 5. The nonwoven fabric 25 disposed on the upper surface of the cylindrical body 1 is provided independently for each cylindrical body 1,
As shown in FIG. 4 (g), it can be provided over the upper surface of the adjacent cylindrical body 1. The other configuration is the same as that shown in FIG. In addition, when the crushed stone 21 is filled in the cylindrical body 1, FIG.
As shown in (f), the top surface thereof is filled with earth and sand 28 having a thickness of about 10 to 100 mm so that the plants vegetated on the tubular body 1 can maintain an appropriate amount of water. The other configuration is the same as that shown in FIG.

As shown in FIG. 5, a top plate 1 made of a net made of a metal or synthetic resin such as expanded metal is provided on the upper and lower surfaces of a filler 2 such as crushed stone filled in a cylindrical body 1.
By disposing the bottom plate 3a and the bottom plate 13b, it is possible to prevent the filler 2 filled in the cylindrical body 1 from flowing out. In this case, only one of the top plate 13a and the bottom plate 13b made of a mesh body can be provided.

Further, as shown in FIG. 6 (a), at least a part of the peripheral wall of the cylindrical body 1 is omitted to form the cylindrical body 1, and the omitted peripheral wall is replaced with the peripheral wall of FIG. 6 (b). As shown in (1), it can be constituted by the peripheral wall 11 of the adjacent cylindrical body 1. Thereby, the overlap of the peripheral walls 11 of the adjacent cylindrical bodies 1 can be eliminated, the water permeability can be improved, the material cost can be saved, and the manufacturing cost of the cylindrical body 1 can be reduced.

FIG. 7 shows a second embodiment in which the slope structure of the present invention is applied to the slope of a river. In this slope structure, a metal cylindrical body 1 having a large number of through holes formed in a peripheral wall is laid on a slope 3 and a riverbed 4 via a metal or synthetic resin net 5 such as expanded metal. Then, adjacent tubular bodies 1 are connected to each other by fasteners such as bolts and nuts, spiral or ring-shaped wires, welding, or the like so that the laid tubular bodies 1 do not move due to the action of flowing water, etc. The cylindrical body 1 is filled with a filler 2 such as crushed stone. Thereby, it is possible to prevent the filler 2 filled in the cylindrical body 1 from flowing out. In this case, a similar net (not shown) can be provided on the upper surface of the tubular body 1. Other configurations of the slope structure of the present embodiment are the same as the slope structure of the first embodiment.

FIG. 8 shows a reference example in which the slope structure of the present invention is applied to a river protection floor. In this protection structure, a metal tubular body 1 having a large number of through holes formed in a peripheral wall is laid on a riverbed 4,
In order to prevent the laid tubular body 1 from moving due to the action of flowing water or the like, the adjacent tubular bodies 1 are connected to each other by fasteners such as bolts and nuts, helical or ring-shaped wires, welding, or the like. It comprises a body 1 and a filler 2 such as crushed stone. In this case, a cylindrical body 1 having a regular hexagonal cross section is used, and the surfaces of the adjacent cylindrical bodies 1 are connected to each other in a direction perpendicular to the flow to form a cylindrical body row 10, and in the flow direction, The sides of the adjacent cylindrical body rows 10 are connected by abutting each other, and the space formed between the adjacent cylindrical body rows 10 is filled with the filler 2 such as crushed stone. This allows
Since at least the surfaces of the adjacent cylindrical bodies 1 are connected to form the cylindrical body row 10, it is possible to reliably prevent the cylindrical body 1 from moving due to flowing water.
Other configurations of the protective floor structure of the present embodiment are the same as those of the slope structure of the first embodiment.

FIG. 9 shows a reference example in which the slope structure of the present invention is applied to a river protection floor. In this protection structure, a metal tubular body 1 having a large number of through holes formed in a peripheral wall is laid on a riverbed 4,
In order to prevent the laid tubular body 1 from moving due to the action of flowing water or the like, the adjacent tubular bodies 1 are connected to each other by fasteners such as bolts and nuts, helical or ring-shaped wires, welding, or the like. It comprises a body 1 and a filler 2 such as crushed stone. In this case, a cylindrical body 1 having a regular hexagonal cross section is used, and the surfaces of the adjacent cylindrical bodies 1 are connected to each other in a direction perpendicular to the flow to form a cylindrical body row 10, and in the flow direction, The surfaces of the adjacent cylindrical body rows 10 are connected so as to partially overlap each other, and the space formed between the adjacent cylindrical body rows 10 is filled with the filler 2 such as crushed stone. Accordingly, the cylindrical body 1 can be laid along the meandering of the river, and at least the surfaces of the adjacent cylindrical bodies 1 are connected to form the cylindrical body row 10.
It is possible to reliably prevent the tubular body 1 from moving due to running water. Other configurations of the bed protection structure of this reference example
This is the same as the slope structure of the first embodiment.

The connection and laying of the tubular body 1 are not limited to those described in the above embodiments and reference examples. The rows of cylindrical bodies formed by connecting the surfaces of the cylindrical bodies to be formed are laid in a fan shape along the meandering of the river, and the space formed between the adjacent cylindrical body rows is filled with filler such as crushed stone For example, any connection and laying form can be adopted.

Although the example in which the slope structure of the present invention is applied to the slope (guard) of a river has been described above, the object of the slope structure of the present invention is not limited to the slope of a river. , Coast,
It is widely applied to civil engineering structures of this kind, such as slopes of mountain skins and valleys, and more specifically, dams shown in FIG. 10, valleys shown in FIG. 11, earth retaining walls shown in FIGS. 12 and 13, retaining walls, and the like. In these cases, the vegetation 6 can be applied as needed.

[0038]

According to the slope structure of the present invention, a metal tubular body having a large number of through holes formed in the peripheral wall is laid on the slope to adjust the thickness of the steel material to be used. A large amount of filler to form a large internal space and increase the amount of filling material, thereby maintaining good water permeability and making it easy for inhabitants such as fish and insects to live in abundant natural environment. Environment can be preserved. In addition, the metal tubular body has a smaller weight and is easier to handle as compared with the concrete block, and in addition to the fact that the connecting work between adjacent tubular bodies can be easily performed, the construction time during construction is reduced. Since the workability is high and various fillers can be accommodated only by adjusting the size of the through hole formed in the peripheral wall, the construction cost of the slope including the transportation cost of the material can be reduced. Furthermore, since vegetation is applied to the cylindrical body filled with filler such as crushed stones, it is possible to prevent the outflow and movement of the filler due to rainwater, etc., and to easily green the slopes etc. Can be achieved.

By arranging the nonwoven fabric on the upper surface of the tubular body, it is possible to maintain an appropriate amount of water for the vegetation, and to surely prevent the outflow or movement of the filler due to rainwater or the like. Thus, greening can be reliably achieved even on an inclined surface or the like.

By using a non-woven fabric containing plant seeds, greening can be achieved more easily.

Further, by laying the net on the upper surface of the nonwoven fabric, the outflow and movement of the nonwoven fabric due to rainwater or the like can be reliably prevented, and greening can be reliably achieved even on an inclined surface or the like.

Further, by forming the tubular body from expanded metal, a through-hole of any size can be easily formed in the peripheral wall of the tubular body, and the manufacturing cost of the tubular body can be reduced.

Further, by forming the cross-sectional shape of the cylindrical body into a regular polygon, the cylindrical bodies can be easily connected.
In particular, when the cross-sectional shape of the cylindrical body is formed as a regular hexagon, the slope structure can be a honeycomb structure, and a structure strong against external force can be formed.

Further, at least a part of the peripheral wall of the cylindrical body is
With the configuration using the peripheral wall of the adjacent cylindrical body, the overlapping of the peripheral wall of the adjacent cylindrical body can be eliminated, the water permeability can be improved, the material cost can be reduced, and the manufacturing cost of the cylindrical body can be reduced. Can be reduced.

[Brief description of the drawings]

FIG. 1 is a first view in which a slope structure of the present invention is applied to a slope of a river.
It is an external appearance perspective view which shows an Example.

FIGS. 2A and 2B show an example of a tubular body, wherein FIG. 2A is a plan view and FIG.
Is a front view.

FIG. 3 is an explanatory view showing an example of a fastener.

FIG. 4 is an explanatory view showing a cylindrical body.

5A and 5B show an example of a tubular body, FIG. 5A is a plan view, and FIG.
Is a front sectional view.

FIG. 6 is an explanatory view showing a cylindrical body, (a) is a perspective view,
(B) is a top view showing the state where a plurality of cylindrical bodies were connected.

FIG. 7 shows a second example in which the slope structure of the present invention is applied to a slope of a river.
It is an external appearance perspective view which shows an Example.

8A and 8B show a reference example in which the slope structure of the present invention is applied to a river protection bed, wherein FIG. 8A is a plan view and FIG. 8B is a side view.

FIG. 9 is a plan view showing a reference example in which the slope structure of the present invention is applied to a river protection floor.

10A and 10B show an embodiment in which the slope structure of the present invention is applied to a bank, wherein FIG. 10A is a front view and FIG. 10B is a side view.

11A and 11B show an embodiment in which the slope structure according to the present invention is applied to a valley, wherein FIG. 11A is a front view and FIG. 11B is a side view.

FIG. 12 shows an embodiment in which the slope structure of the present invention is applied to earth retaining and retaining walls, (a) is a plan view, and (b) is a side view.

FIG. 13 shows an embodiment in which the slope structure of the present invention is applied to a retaining wall and a retaining wall, (a) is a plan view, and (b) is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical body 10 Cylindrical body row 11 Peripheral wall 13a Top plate 13b Bottom plate 2 Filler 25 Non-woven fabric 26 Non-woven fabric 27 Netting 3 Slope 4 Riverbed 5 Netting 6 Vegetation 7 Fastener

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[Procedure amendment]

[Submission date] March 10, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Slope structure

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to rivers, lakes, coasts,
Regarding the slopes of hillsides, valleys, etc. (herein, simply referred to as “rivers, etc.”) and structures such as seawalls (herein, simply referred to as “slope structures”).
In particular, it relates to a slope structure for the purpose of preserving the natural environment.

[0002]

2. Description of the Related Art Conventionally, when a slope such as a river is formed, concrete is poured or a concrete block is placed along the slope to protect the slope. However, with the recent trend of preserving the natural environment, the method of using the above-mentioned conventional concrete is being reviewed, and the development of a method suitable for the natural environment has been demanded.

[0003]

In response to the demand for preserving the natural environment, a hollow concrete block in which a filler such as crushed stone can be filled has been proposed and put into practical use. I have.

However, since this block is made of concrete and is heavy and difficult to handle, not only is the workability at the time of construction inferior, but also the interior space is formed too large due to the strength required for the block. Therefore, the amount of filler that can be filled into the block is limited, and the purpose of preserving the natural environment by maintaining water permeability has not been completely achieved.

Further, in the case of a concrete block, a large number of small holes cannot be formed in the peripheral wall of the block. In many cases, the material cannot be used, and the construction cost of the slope including the transportation cost of the material is increased.

The inventor of the present invention has previously proposed a conventional method of casting concrete or installing a concrete block, or a hollow concrete made of concrete capable of being filled with a filler such as crushed stone. In consideration of the problems of the block, the amount of filler to be filled by forming a large internal space is increased, thereby maintaining good water permeability and preserving the natural environment, and improving workability during construction. Laminated seawall with a large number of through-holes in the peripheral wall, which is high in cost and has no restrictions on the size of filler, etc., and can reduce the construction cost of seawall including material transportation cost In addition, there has been proposed a seawall structure in which adjacent tubular bodies are connected to each other and a filler such as crushed stone is filled inside the tubular bodies (1997 Patent Application No. 99746).

In this revetment structure, the required strength can be easily obtained simply by laying a steel tubular body having a large number of through holes in the peripheral wall on the revetment and adjusting the thickness of the steel material used. It is possible to form a large internal space and increase the amount of filler to be filled, thereby maintaining good water permeability and preserving the natural environment. Compared with the block, the weight is smaller, the handling is easier, and the connection work between the adjacent tubular bodies can be made easier, so that the workability at the time of construction is higher and the transparency formed on the peripheral wall is higher. Only by adjusting the size of the holes, it was possible to cope with various types of fillers, and the remarkable operation and effect that the construction cost of the revetment including the transportation cost of the materials could be reduced was achieved.

According to the present invention, a ground portion of the seawall structure in which the steel tubular body is laid on the seawall, that is,
Regarding the improvement of the slope (including the above-ground portion other than the sloped surface in the present specification), the internal space is made larger to increase the amount of filler to be filled, thereby maintaining good water permeability and maintaining natural water permeability. The environment can be preserved, workability during construction is high, and there are no restrictions on the size of the filler, etc., and construction costs on slopes including material transportation costs can be reduced, and greening can be achieved. It is an object to provide a slope structure that can be achieved.

[0009]

In order to achieve the above object, a slope structure according to the present invention is provided by laying a metal tubular body having a large number of through holes in a peripheral wall on the slope, and forming an adjacent tubular body. In a slope structure in which the bodies are connected to each other, and the inside of the cylindrical body is filled with a filler such as crushed stone, and vegetation is applied, a nonwoven fabric is disposed in an upper peripheral wall of the cylindrical body, and Characterized by laying a net which is common to the adjacent cylindrical body on the upper surface of the.

In this slope structure, the required strength can be easily obtained only by laying a metal tubular body having a large number of through holes in the peripheral wall on the slope and adjusting the thickness of the steel material used. As a result, the internal space is largely formed, and the amount of the filler to be filled is increased, whereby the natural environment can be preserved while maintaining good water permeability. In addition, the metal tubular body has a smaller weight and is easier to handle as compared with the concrete block, and in addition to the fact that the connecting work between adjacent tubular bodies can be easily performed, the construction time during construction is reduced. Workability is high, and it is possible to cope with various fillers only by adjusting the size of the through hole formed in the peripheral wall, and it is possible to reduce the construction cost of the slope including the transportation cost of the material. Furthermore, since vegetation is applied to the cylindrical body filled with filler such as crushed stones, it is possible to prevent the outflow and movement of the filler due to rainwater, etc., and to easily green the slopes etc. Can be achieved. And especially, while arranging the non-woven fabric in the upper peripheral wall of the tubular body, and laying a net common to the tubular body adjacent to the upper surface of the non-woven fabric, the vegetation plant has appropriate water retention. In addition, the outflow and movement of the filler and the nonwoven fabric due to rainwater and the like can be reliably prevented, and greening can be reliably achieved even on an inclined surface or the like.

In this case, a non-woven fabric containing plant seeds can be used.

Thus, greening can be achieved more easily.

Further, the tubular body can be made of expanded metal.

Thus, a through hole of any size can be easily formed in the peripheral wall of the cylindrical body, and the manufacturing cost of the cylindrical body can be reduced.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a slope structure according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment in which the slope structure of the present invention is applied to a slope of a river. As shown in FIG. 2, the slope structure is such that a metal tubular body 1 having a large number of through holes formed in a peripheral wall 11 is laid on a slope 3 and a riverbed 4, and the laid tubular body 1 is laid.
The adjacent cylindrical bodies 1 are connected to each other by fasteners such as bolts and nuts, helical or ring-shaped wires, welding, or the like so that the cylindrical bodies 1 do not move due to the action of flowing water or the like.
Is filled with a filler 2 such as crushed stone.

In this embodiment, the cylindrical body 1 laid on the slope 3 is provided with a step at the top so as to be laid in a stepwise manner. However, the present invention is not limited to this. It may be laid in a plane so as to be parallel to the surface 3.

The tubular body 1 laid on the riverbed 4 is provided with, for example, a plurality of tubular bodies 1A protruding every other portion so that the height of the top is different between adjacent tubular bodies. As a result, the scenery can be given an accent and the running water can be buffered.
A cover having a large number of through-holes formed on the surface thereof as necessary so that the filler 2 such as crushed stone filled into the inside of the tubular body 1 does not flow into the tubular body 1 laid on the riverbed 4. A plate (not shown) can be provided.

The cylindrical body 1 is formed with a number of cuts in a metal plate such as a steel plate or an iron-aluminum alloy plate having a thickness of several mm to 10 mm depending on the use environment, required strength, and the like. The expanded metal is formed by forming a large number of through-holes by stretching, and the edges are connected by bolts and nuts, fasteners such as spiral or ring-shaped wires, welding, etc. Is formed so as to be a regular hexagon. In addition, the upper edge 12 (and, if necessary, the lower edge) of the peripheral wall 11 of the cylindrical body 1 can be configured so as not to form a through hole in order to increase the strength of the cylindrical body 1. . In the present embodiment, the cylindrical body 1 is formed so that the cross-sectional shape becomes a regular hexagon, whereby the slope structure is made to be a honeycomb structure. The shape is not limited, and any shape such as a polygon such as a triangle and an octagon, and a cylinder can be adopted.

In this case, when the peripheral wall 11 of the cylindrical body 1 is formed of a member having a large number of through holes such as expanded metal, a connecting tool used for connecting adjacent cylindrical bodies 1 is a bolt or a bolt. In addition to a nut, a spiral or a ring-shaped wire, for example, a dedicated fastener 7 as shown in FIG. 3 can be used. The fastener 7 has a fastener body 71 having fixed pieces 71a, 71a formed at upper and lower ends.
And the key piece 72, and the peripheral wall 1 of the adjacent cylindrical body 1.
In a state where the pieces 1 are overlapped, the fixing pieces 71a, 71a of the fastener body 71 are inserted into the through holes formed in the peripheral wall 11, and the key pieces 72 are inserted into the key holes 71b, 71b formed in the fixing pieces 71a, 71a. By inserting, the adjacent cylindrical bodies 1 are connected to each other so that they can be integrated.

In the interior of the tubular body 1, usually, FIG.
As shown in (Reference Example), the crushed stones 21 are uniformly filled, but the filler 2 to be filled is in a state such as a slope 3 on which the tubular body 1 is laid, a riverbed 4, and other incidental materials. It can be arbitrarily selected according to various requests. For example, when using local materials, such as when using pebbles or sand having a particle size smaller than the size of the through-hole formed in the peripheral wall 11 of the cylindrical body 1, FIG. As shown in FIG. 1), a water-permeable nonwoven fabric 23 made of a natural fiber or a synthetic resin fiber is disposed on the inner peripheral surface of the peripheral wall 11 of the cylindrical body 1 and then filled with granular materials 22 such as pebbles and sand. To In addition, when purifying river water, as shown in FIG. 4C (reference example), crushed stones 21a and 21b and a purifying material 24 such as charcoal are layered or mixed in the cylindrical body 1. To fill. Also,
As shown in FIG. 4D (reference example), a water-permeable nonwoven fabric layer 25 made of a natural fiber or a synthetic resin fiber can be formed on the upper surface of the crushed stone 21 filled in the cylindrical body 1.

By the way, as shown in FIG. 4 (e) (embodiment), inside the cylindrical body 1 laid on the slope 3 (ground portion), the inner peripheral surface of the peripheral wall 11 of the cylindrical body 1 If necessary, after disposing a nonwoven fabric 23 having a water permeability of natural fiber or synthetic resin fiber having a thickness of about 5 to 30 mm, the granular material 22 such as pebbles, sand, etc. And further, if necessary, a thickness of 10 to 100 mm on its upper surface.
A non-woven fabric 25 having a water permeability made of natural fibers or synthetic resin fibers of a certain degree can be provided. The non-woven fabric 25 disposed on the upper surface of the tubular body 1 is for preventing the plants vegetating on the tubular body 1 from retaining a proper amount of water and preventing the outflow or movement of the filler due to rainwater or the like. Thus, greening can be reliably achieved even on an inclined surface or the like. In this case, the plants vegetated in the tubular body 1 may be directly planted with a suitable plant for slope greening after filling the tubular body 1 with the filler, but before arranging the nonwoven fabric 25, Plant seeds can be sown or a nonwoven fabric 25 containing plant seeds can be provided. In particular, by using the nonwoven fabric 25 containing plant seeds, greening can be easily achieved. In addition, a water-permeable nonwoven fabric 26 made of a natural fiber or a synthetic resin fiber having a thickness of about 10 to 100 mm for preventing suction is provided on the lower surface of the cylindrical body 1.
And 50 to 100 m for preventing movement of the nonwoven fabric 25 on the upper surface of the nonwoven fabric 25 disposed on the upper surface of the tubular body 1.
It is desirable to lay a metal or synthetic resin net 27 having a mesh size of about m. In addition, the nonwoven fabric 25 disposed on the upper surface of the tubular body 1 is provided independently for each tubular body 1 and, as shown in FIG. It can be provided laid over the upper surface. The other configuration is the same as that shown in FIG. In addition, when the crushed stone 21 is filled in the cylindrical body 1, as shown in FIG. 4F (Example), it is possible to perform appropriate water retention for the plants vegetated in the cylindrical body 1. As much as possible, the upper surface is filled with earth and sand 28 having a thickness of about 10 to 100 mm. The other configuration is the same as that shown in FIG.

As shown in FIG. 5 (reference example), a mesh made of a metal such as expanded metal or a synthetic resin is formed on the upper and lower surfaces of a filler 2 such as crushed stone filled in a cylindrical body 1. By disposing the top plate 13a and the bottom plate 13b,
It is possible to prevent the filler 2 filled in the cylindrical body 1 from flowing out. In this case, the top plate 13 made of a mesh body
a and the bottom plate 13b can be arranged in only one of them.

Further, as shown in FIG. 6 (a), at least a part of the peripheral wall of the cylindrical body 1 is omitted to form the cylindrical body 1, and the peripheral wall of the omitted portion is replaced with the peripheral wall of FIG. 6 (b). As shown in (1), it can be constituted by the peripheral wall 11 of the adjacent cylindrical body 1. Thereby, the overlap of the peripheral walls 11 of the adjacent cylindrical bodies 1 can be eliminated, the water permeability can be improved, the material cost can be saved, and the manufacturing cost of the cylindrical body 1 can be reduced.

FIG. 7 shows a second embodiment in which the slope structure of the present invention is applied to a river slope. In this slope structure, a metal cylindrical body 1 having a large number of through holes formed in a peripheral wall is laid on a slope 3 and a riverbed 4 via a metal or synthetic resin net 5 such as expanded metal. Then, adjacent tubular bodies 1 are connected to each other by fasteners such as bolts and nuts, spiral or ring-shaped wires, welding, or the like so that the laid tubular bodies 1 do not move due to the action of flowing water, etc. The cylindrical body 1 is filled with a filler 2 such as crushed stone. Thereby, it is possible to prevent the filler 2 filled in the cylindrical body 1 from flowing out. In this case, a similar net (not shown) can be provided on the upper surface of the tubular body 1. Other configurations of the slope structure of the present embodiment are the same as the slope structure of the first embodiment.

FIG. 8 shows a reference example in which the slope structure of the present invention is applied to a river protection floor. In this protection structure, a metal tubular body 1 having a large number of through holes formed in a peripheral wall is laid on a riverbed 4,
In order to prevent the laid tubular body 1 from moving due to the action of flowing water or the like, the adjacent tubular bodies 1 are connected to each other by fasteners such as bolts and nuts, helical or ring-shaped wires, welding, or the like. It comprises a body 1 and a filler 2 such as crushed stone. In this case, a cylindrical body 1 having a regular hexagonal cross section is used, and the surfaces of the adjacent cylindrical bodies 1 are connected to each other in a direction perpendicular to the flow to form a cylindrical body row 10, and in the flow direction, The sides of the adjacent cylindrical body rows 10 are connected by abutting each other, and the space formed between the adjacent cylindrical body rows 10 is filled with the filler 2 such as crushed stone. This allows
Since at least the surfaces of the adjacent cylindrical bodies 1 are connected to form the cylindrical body row 10, it is possible to reliably prevent the cylindrical body 1 from moving due to flowing water.
Other configurations of the protective floor structure of the present embodiment are the same as those of the slope structure of the first embodiment.

FIG. 9 shows a reference example in which the slope structure of the present invention is applied to a river protection floor. In this protection structure, a metal tubular body 1 having a large number of through holes formed in a peripheral wall is laid on a riverbed 4,
In order to prevent the laid tubular body 1 from moving due to the action of flowing water or the like, the adjacent tubular bodies 1 are connected to each other by fasteners such as bolts and nuts, helical or ring-shaped wires, welding, or the like. It comprises a body 1 and a filler 2 such as crushed stone. In this case, a cylindrical body 1 having a regular hexagonal cross section is used, and the surfaces of the adjacent cylindrical bodies 1 are connected to each other in a direction perpendicular to the flow to form a cylindrical body row 10, and in the flow direction, The surfaces of the adjacent cylindrical body rows 10 are connected so as to partially overlap each other, and the space formed between the adjacent cylindrical body rows 10 is filled with the filler 2 such as crushed stone. Accordingly, the cylindrical body 1 can be laid along the meandering of the river, and at least the surfaces of the adjacent cylindrical bodies 1 are connected to form the cylindrical body row 10.
It is possible to reliably prevent the tubular body 1 from moving due to running water. Other configurations of the bed protection structure of this reference example
This is the same as the slope structure of the first embodiment.

The form of connection and laying of the cylindrical body 1 is not limited to those described in the above embodiments and reference examples. For example, in order to prevent the cylindrical body 1 from being moved by flowing water, The rows of cylindrical bodies formed by connecting the surfaces of the cylindrical bodies to be formed are laid in a fan shape along the meandering of the river, and the space formed between the adjacent cylindrical body rows is filled with filler such as crushed stone For example, any connection and laying form can be adopted.

Although the example in which the slope structure of the present invention is applied to the slope (guard) of a river has been described above, the object of the slope structure of the present invention is not limited to the slope of a river. , Coast,
It is widely applied to civil engineering structures of this kind, such as slopes of mountain skins and valleys, and more specifically, dams shown in FIG. 10, valleys shown in FIG. 11, earth retaining walls shown in FIGS. 12 and 13, retaining walls, and the like. In these cases, the vegetation 6 can be applied as needed.

[0030]

According to the slope structure of the present invention, a metal tubular body having a large number of through holes formed in the peripheral wall is laid on the slope to adjust the thickness of the steel material to be used. A large amount of filler to form a large internal space and increase the amount of filling material, thereby maintaining good water permeability and making it easy for inhabitants such as fish and insects to live in abundant natural environment. Environment can be preserved. In addition, the metal tubular body has a smaller weight and is easier to handle as compared with the concrete block, and in addition to the fact that the connecting work between adjacent tubular bodies can be easily performed, the construction time during construction is reduced. Since the workability is high and various fillers can be accommodated only by adjusting the size of the through hole formed in the peripheral wall, the construction cost of the slope including the transportation cost of the material can be reduced. Furthermore, since vegetation is applied to the cylindrical body filled with filler such as crushed stones, it is possible to prevent the outflow and movement of the filler due to rainwater, etc., and to easily green the slopes etc. Can be achieved. And especially, while arranging the non-woven fabric in the upper peripheral wall of the tubular body, and laying a net common to the tubular body adjacent to the upper surface of the non-woven fabric, the vegetation plant has appropriate water retention. In addition, the outflow and movement of the filler and the nonwoven fabric due to rainwater and the like can be reliably prevented, and greening can be reliably achieved even on an inclined surface or the like.

By using a nonwoven fabric containing plant seeds, greening can be achieved more easily.

Further, by forming the cylindrical body from expanded metal, a through-hole of an arbitrary size can be easily formed in the peripheral wall of the cylindrical body, and the manufacturing cost of the cylindrical body can be reduced.

[Brief description of the drawings]

FIG. 1 is a first view in which a slope structure of the present invention is applied to a slope of a river.
It is an external appearance perspective view which shows an Example.

FIGS. 2A and 2B show an example of a tubular body, wherein FIG. 2A is a plan view and FIG.
Is a front view.

FIG. 3 is an explanatory view showing an example of a fastener.

FIG. 4 is an explanatory view showing a cylindrical body.

5A and 5B show an example of a tubular body, FIG. 5A is a plan view, and FIG.
Is a front sectional view.

FIG. 6 is an explanatory view showing a cylindrical body, (a) is a perspective view,
(B) is a top view showing the state where a plurality of cylindrical bodies were connected.

FIG. 7 shows a second example in which the slope structure of the present invention is applied to a slope of a river.
It is an external appearance perspective view which shows an Example.

8A and 8B show a reference example in which the slope structure according to the present invention is applied to a river protection floor, wherein FIG. 8A is a plan view and FIG. 8B is a side view.

FIG. 9 is a plan view showing a reference example in which the slope structure of the present invention is applied to a river protection floor.

10A and 10B show an embodiment in which the slope structure of the present invention is applied to a bank, wherein FIG. 10A is a front view and FIG. 10B is a side view.

11A and 11B show an embodiment in which the slope structure according to the present invention is applied to a valley, wherein FIG. 11A is a front view and FIG. 11B is a side view.

FIG. 12 shows an embodiment in which the slope structure of the present invention is applied to earth retaining and retaining walls, (a) is a plan view, and (b) is a side view.

FIG. 13 shows an embodiment in which the slope structure of the present invention is applied to a retaining wall and a retaining wall, (a) is a plan view, and (b) is a side view.

[Description of Signs] 1 Cylindrical body 10 Cylindrical body row 11 Peripheral wall 13a Top plate 13b Bottom plate 2 Filler 25 Non-woven fabric 26 Non-woven fabric 27 Netting 3 Slope 4 Riverbed 5 Netting 6 Vegetation 7 Fastener

Claims (8)

[Claims] 1. A metal tubular body having a large number of through-holes formed in a peripheral wall is laid on a slope to connect adjacent tubular bodies together with a filler such as crushed stone inside the tubular body. A slope structure characterized by filling and vegetation. 2. The slope structure according to claim 1, wherein a nonwoven fabric is provided on the upper surface of the tubular body. 3. The slope structure according to claim 2, wherein the nonwoven fabric contains plant seeds. 4. The slope structure according to claim 2, wherein a net is laid on the upper surface of the nonwoven fabric. 5. The slope structure according to claim 1, wherein the tubular body is made of expanded metal. 6. The slope structure according to claim 1, wherein the cylindrical body has a regular polygonal cross section. 7. The slope structure according to claim 6, wherein the cross-sectional shape of the cylindrical body is formed as a regular hexagon. 8. The slope structure according to claim 6, wherein at least a part of the peripheral wall of the cylindrical body is constituted by the peripheral wall of an adjacent cylindrical body.