JPH08232268A - Slope block and method for protecting face of slope using same - Google Patents

Abstract

PURPOSE: To effectively protect a face of slope from erosion and scouring, etc., by embedding flexible wires in block main bodies, taking the ends of the wires out from the corresponding ends of the block main bodies for the formation of freely-curving connections, and connecting the connections of the main bodies of adjacent slope blocks together. CONSTITUTION: Flexible wires 11 are embedded in block main bodies while orthogonally intersecting one another. In this case, a length sufficient to perform bundling is taken out from each end to form freely-curving connections 11a, 11b, 11c, 11d. Sloping-face block units U each consisting of six sloping-face blocks A arranged in three columns and two rows are molded in a factory. The units U are appropriately spaced and installed by means of hangers. Then the units U are connected and integrated together. Further, a vegetation space C is formed between the adjacent blocks A for vegetation. Thus sufficient flexibility is secured between the sloping face blocks A for the blocks A to easily fit the form of a face of slope even with steep irregularities on the face of slope.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope block and a slope block which can effectively prevent slopes such as embankments of rivers and roads and seawall protection from erosion and scouring. Slope protection method.

[0002]

2. Description of the Related Art Conventionally, as a slope block for the above purpose, there is a slope block B schematically shown in FIG. 7 and FIG. The reinforcing bars 51 are arranged in a buried state, and the reinforcing bars 51 are projected outward from the corners 52 of the block body 50 to form ring-shaped hooks 53.

A large number of such slope blocks B are installed in the vertical and horizontal directions on slopes such as rivers and roads, and the corner portions 52 are connected to each other by connecting fittings 54 such as shackles as shown in FIG. By connecting to each other using
Slope protection can be achieved by firmly connecting the slope blocks B to each other.

[0004]

However, such a slope block B and a slope protection method using the slope block B still have the following problems to be solved.

The ring-shaped hook 53 projecting from the corner portion 52 of the block body 50 of the slope block B is formed by extending the reinforcing bar 51 and therefore has high rigidity and is short.

Therefore, when the adjacent slope blocks B are connected to each other by the connecting fittings 54, sufficient flexibility cannot be secured between the slope blocks B, and when the unevenness of the slope is steep, Since the slope shape cannot be followed, the slope surface cannot be effectively protected from erosion and the like.

In order to connect the ring-shaped hook 53 projecting from the corner portion 52 of the block body 50 of the slope block B with the connecting fitting 54 made of a shackle or the like, it is provided at the corner portion 52 of the adjacent slope block B. The ring-shaped hooks 53 must be brought close to each other and the correct connecting positions must be ensured. Therefore, it is necessary to install the slope block B itself at a precisely determined position on the slope, but since each slope block B is a heavy object having a considerable weight, accurate positioning work and The installation work is complicated. Further, the connecting work itself using the connecting fitting 54 made of a shackle or the like is extremely complicated because the connecting fitting 54 and the ring-shaped hook 53 are both highly rigid members.

The ring-shaped hook 53 protruding from the corner portion 52 of the block body 50 of the slope block B has a high rigidity because it is formed by extending the reinforcing bar 51. Therefore,
If the worker touches the ring-shaped hook 53 during the movement and laying work of the slope block B, there is a risk of personal injury.

Since the ring-shaped hook 53 projecting from the corner 52 of the block body 50 of the slope block B is formed by extending the reinforcing bar 51, for example, when the outer peripheral surface of the reinforcing bar is galvanized. However, the plating may peel off over time, resulting in corrosion, which may cause breakage. In this case, the slope block B is lost or collapsed, and the slope or revetment protection function cannot be fulfilled.

It is an object of the present invention to provide a slope block and a slope protection method using the block that can solve the above problems.

[0011]

According to the present invention, a flexible wire is embedded in a block body, and an end of the wire is taken out from a corresponding end of the block body to form a bendable connecting portion. The invention relates to a slope block which is characterized in that the bendable connecting portion can be connected to a bendable connecting portion of a flexible wire which is also embedded in a block body of an adjacent slope block.

As the flexible wire, preferably,
Polyethylene-based, polyvinyl alcohol-based, polyester-based, vinyl-based, and polyamide-based synthetic fiber ropes can be preferably used.

Further, the shape of the slope block is not limited at all, but may be L-shaped in a plan view, for example.

The present invention also embeds a flexible wire rod in the block body and takes out the end of the wire rod from the corresponding end portion of the block body to the outside to form a bendable connecting portion. Are laid on the slopes of rivers, roads, etc., and adjacent slope blocks are connected by connecting the bendable connecting parts of the flexible wire to protect the slopes. The present invention relates to a slope protection method using a slope block.

In the above slope protection method, each slope block can be suspended and laid on a slope such as a river or road, but a plurality of interconnected slope blocks can be used as a crane. It is also possible to hang it integrally using a suspension tool such as, and to lay it on the slope of a river or road.

As the flexible wire embedded in the slope block used in the above method, polyethylene-based, polyvinyl alcohol-based, polyester-based, vinyl-based, or polyamide-based synthetic fiber rope can be preferably used.

[0017]

The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings.

FIG. 1 shows a concrete example of the slope block A according to the present invention.

As shown in the figure, the block main body 10 made of concrete is made of a thick plate having an L-shape in plan view, and the flexible wire rods 11 are embedded in the inside thereof in the vertical and horizontal directions so as to be orthogonal to each other. ing.

Further, the flexible wire 11 has its respective end portions taken out from the corresponding end portions of the block body 10 to the outside by a length long enough to perform the binding as will be described later.
11b, 11c and 11d are formed. This bendable connecting part 11a,
As will be described later with reference to FIGS. 2 to 4, 11b, 11c, and 11d are bendable with a sufficient length of the flexible wire rod 11 similarly embedded in the block body 10 of the adjacent slope block A. The connecting portions 11a, 11b, 11c, 11d can be connected or bound.

As the flexible wire 11, it is preferable to use a polyethylene, polyvinyl alcohol, polyester, vinyl, or polyamide synthetic fiber rope.

Since such a synthetic fiber rope has a good water absorption property, it is compatible with fluidized concrete in the forming work of the slope block A and can be integrated with the concrete when the concrete is hardened. Therefore, a spiral groove is formed on the outer peripheral surface over the entire length, and concrete flows into the spiral groove at the time of molding, and when the concrete flows in, it acts as a wedge to prevent wire rods from coming out. In terms of physical properties, it has a high tensile strength and can give the bendable joints 11a, 11b, 11c, 11d of the flexible wire rod 11 a sufficient degree of bending freedom, while it has a chemical resistance. This is because all the conditions required by the flexible wire rod 11 such as excellent corrosion resistance such as alkalinity are satisfied.

Next, the slope protection method by the slope block A described above will be specifically described with reference to FIGS.

First, in a usual case, a filter material (soil particle suction preventing material) not shown is laid in advance on the slope.

Next, when installing the above-mentioned slope block A on the slope, first, considering the ease of construction,
As shown in FIGS. 2 to 4, a slope surface block unit U including a total of 6 slope surface blocks A having three rows in the vertical direction and two rows in the horizontal direction is formed in a factory or the like.

This is because, although it depends on the size of the slope block A, generally, the work of installing the slope blocks A one by one on the slope becomes complicated.

Therefore, the slope block unit U has two bendable connecting portions 11a, 11a, 11b, from the upper and lower surfaces thereof, respectively.
Along with taking out 11b, three bendable connecting portions 11c, 11c, 11c, 11d, 11d, 11d are taken out on the left and right sides respectively.

Then, the slope block unit U
As shown in FIG. 2, it can be easily installed by using a suspending tool such as a crane at appropriate intervals in the vertical and horizontal directions.

Next, as shown in FIGS. 2 to 4, the bendable connecting portions 11a, 11b, 11c and 11d taken out from the upper, lower, left and right ends of each slope block unit U are vertically adjacent to the slope blocks. By firmly connecting the bendable connecting portions 11a, 11b, 11c, 11d of the unit U, the slope block units U are integrally connected to complete the slope protection work.

Although a tie-knot (ironing knot) is shown in FIG. 3 as a strong tying method, the tying method that can be used in the present invention is not limited to this tying method. However, other tying methods may be used. For example, a single tie, a double tie, a small rope tie, a large rope tie, a moyatsu tie, and the like can be preferably used. That is, even with these binding methods,
When the slope block unit U is lifted by the suspension tool, the bendable connecting portions 11a, 11b, 11c,
This is because the connection strength of 11d increases.

Further, the bendable connecting portions 11a, 11b,
If an ice price is provided by knitting on either 11c or 11d, the bundling can be performed more easily and firmly.

As described above, in this embodiment, in the slope protection work by the slope block, the bendable connecting portions 11a, 11b,
11c and 11d have sufficient bending freedom (flexibility) as described above, so that the adjacent slope block A
When the bendable connecting parts 11a, 11b, 11c, 11d are bound together and connected, sufficient flexibility can be secured between both slope blocks A, and the unevenness of the slope is steep However, the slope shape can be easily followed and the slope can be effectively protected from erosion and the like.

That is, it is possible to effectively prevent the erosion of the levee and the scour of the abutment, and to stabilize them. At the same time, by bringing people closer to the waterside, the role of the waterside as an environmental revetment and the hydrophilicity You can build a slope that doubles as a seawall.

Furthermore, when this slope protection method is used for a dike, a pond, a water reservoir, etc. of a golf course, it is possible to prevent the player from being injured by slipping or falling, and to collect the ball on the golf course. It is possible to get off the embankment, and at the same time, as will be described later, it is possible to improve the landscape by greening.

Further, since the bendable connecting portions 11a, 11b, 11c, 11d have a sufficient degree of freedom in bending and have a sufficient length, the bendable connecting portions 11a, 11b, 11c, 11d are specially connected to each other. It can be easily and firmly bound by hand without using any metal fittings or tools, and can be bound at any binding position. Therefore, even if the slope surface block unit U, which is a heavy load, cannot be laid accurately on the slope surface, the adjacent slope surface block units U can be reliably connected to each other.

Further, since the bendable connecting portions 11a, 11b, 11c, 11d protruding outward from the side surface of the slope block unit U have a sufficient degree of bending freedom, they can be used for moving or laying the slope block unit U. , Workers can bend freely
There is no risk of personal injury even when touching 11a, 11b, 11c, 11d, and the safety of these operations can be secured.

Further, in the present embodiment, when the flexible wire rod 11 is made of synthetic fiber rope, the synthetic fiber rope has sufficient corrosion resistance, so that it can be used even in a bad environment such as a beach. The flexible connecting portions 11a, 11b, 11c, 11d can be prevented from corroding, and strong slope protection can be maintained for many years.

Further, in the present embodiment, as shown in FIG. 2, each slope block A is made of a thick plate having an L-shape in plan view, and therefore, a rectangle is formed between adjacent slope blocks A. A vegetation space (small compartment) C can be formed,
As shown in FIG. 5, a desired plant P can be vegetated by sowing seeds in the vegetation space C or vegetatively growing seedlings. The aesthetics can be improved.

That is, a levee or the like having a slope formed by growing a plant P forms a natural state, and it is possible to restore the natural environment and coexist with animals and plants. You will be able to build.

FIG. 6 shows another embodiment of the present invention.

As shown in the figure, the slope has two kinds of slope blocks A'and A '' laid on its surface.

Similar to the slope block A described with reference to FIGS. 1 to 5, each of the slope blocks A'and A '' has a flexible wire rod 11 in the block body 10 in the vertical and horizontal directions. Is embedded in and is bendable from the end of the flexible connecting portion 11a, 11b,
I am taking out 11c and 11d.

The bendable connecting portions 11a, 11b,
By bundling 11c and 11d together, strong slope protection can be achieved as in the above-mentioned embodiment, and
A desired plant can be vegetated by forming a vegetation space C ′ between the slope blocks A ′ and A ″.

The slope block A'also has a vegetation space C '' formed in the center thereof, and desired plants can be vegetated in the space C '.

Although the present invention has been described with reference to the embodiments, the present invention is not limited to the structures and methods described in the above embodiments, and the following structures and methods are also applicable, for example. It is included in the invention.

The slope block can be connected in advance not only at the time of construction work such as laying work but also at the time of shipping the block.

The shape of the slope block can be any shape depending on the situation at the construction site.

The vegetation space may be filled with soil and then seeded, or seedlings grown to some extent may be vegetated. Alternatively, the plant may be naturally grown by leaving it as it is.

[0049]

As described above, in the present invention, the flexible wire is embedded in the block body, and the end of the wire is taken out from the corresponding end of the block body to form the bendable connecting portion. A large number of formed slope blocks are laid on slopes such as rivers and roads, and adjacent slope blocks are connected by connecting bendable connecting portions of flexible wire rods, I try to protect the slope.

Therefore, the following effects are obtained.

Since the bendable joint has a sufficient degree of bending freedom, when the adjacent slope blocks are connected by binding the bendable joints to each other, sufficient bendability is secured between both slope blocks. Even if the unevenness of the slope is steep, the slope shape can be easily followed and the slope can be effectively protected from erosion and the like.

Since the bendable connecting portion has a sufficient degree of bending freedom and a sufficient length, the bendable connecting portion can be easily and firmly formed by hand without using any special connecting metal fittings or tools. It can be bound at any binding position. Therefore, even if it is not possible to accurately lay a heavy slope block on the slope, it is possible to reliably connect adjacent slope blocks to each other.

Since the bendable connecting portion projecting outward from the side surface of the slope block has a sufficient degree of freedom in bending, even if an operator touches the bendable connecting portion during a moving operation or a laying work of the slope block, a personal injury may occur. There is no danger of
The safety of these operations can be ensured.

When the flexible wire is formed of a synthetic fiber rope, the synthetic fiber rope has sufficient corrosion resistance, so that the bendable joint portion corrodes even in a bad environment such as a beach. Can be prevented, and strong slope protection can be maintained for many years.

Slope protection work is performed by suspending a plurality of slope blocks connected to each other integrally by using a suspension support tool such as a crane and laying them on a slope such as a river or a road. It can be done easily and quickly.

When the slope block is L-shaped in a plan view, a rectangular vegetation space can be formed between adjacent slope blocks, and seeds can be sown in the vegetation space. A desired plant can be vegetated, and the aesthetics of the slope protected can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a slope block according to an embodiment of the present invention.

FIG. 2 is a plan view of a slope protected by using a large number of the slope blocks.

FIG. 3 is an enlarged sectional view taken along line I-I of FIG.

FIG. 4 is an enlarged sectional view taken along line II-II of FIG.

FIG. 5 is a perspective view after plant growth on a slope protected by using the slope block.

FIG. 6 is a plan view of a slope protected by using a number of slope blocks according to another embodiment of the present invention.

FIG. 7 is a cross-sectional plan view for explaining a reinforcing bar arrangement state in a conventional slope block.

FIG. 8 is a sectional side view showing a reinforcing bar arrangement state in the slope block.

FIG. 9 is a plan view of a slope surface protected by using many conventional slope blocks.

FIG. 10 is an enlarged plan view of a connecting portion of the slope block.

[Explanation of symbols]

 A, A ', A' 'Slope block C, C', C '' Vegetation space U Slope block unit 10 Block body 11 Flexible wire 11a, 11b, 11c, 11d Flexible joint

Claims (6)

[Claims] 1. A flexible wire (11) is embedded in a block body (10), and an end of the wire (11) is taken out from a corresponding end of the block body (10) to be flexibly connected. Part (11a) (11b) (11
c) (11d) is formed, and the flexible joints (11a) (11b) (11c) (1
A flexible wire rod (11) in which 1d) is similarly embedded in the block body (10) of the adjacent slope block is a bendable connecting portion (11a) (11b).
(11c) A slope block characterized by being connectable with (11d). 2. The flexible wire (11) is made of polyethylene,
The slope block according to claim 1, characterized in that a polyvinyl alcohol-based, polyester-based, vinyl-based, or polyamide-based synthetic fiber rope is used. 3. The slope block according to claim 1, wherein the block body (10) is L-shaped in a plan view. 4. A flexible wire (11) is embedded in a block body (10), and an end portion of the wire (11) is attached to the block body (10).
Pull out from the corresponding end of the
a) (11b) (11c) (11d) formed slope blocks (A) are laid on a number of slopes such as rivers and roads, and adjacent slope blocks (A) (A) The flexible wire rods (11) and (11) are connected by connecting the bendable connecting portions (11a) (11b) (11c) (11d) to each other to protect the slope. Slope protection method by face block. 5. A plurality of slope blocks (A) connected to each other
The method of protecting a slope by a slope block according to claim 4, wherein the slope is integrally suspended using a suspension support and is laid on a slope such as a river or a road. 6. The flexible wire (11) is made of polyethylene,
The slope protection method with a slope block according to claim 4 or 5, wherein a polyvinyl alcohol-based, polyester-based, vinyl-based, or polyamide-based synthetic fiber rope is used.