JP2004084360A - Consolidation block for maintaining ecosystem and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a consolidation block for maintaining an ecosystem capable of easily securing the natural habitat of benthic organisms and its manufacturing method. <P>SOLUTION: A flexible cylindrical member 4 capable of being curved which is disposed within a form 3 is secured to the wall surface of the form 3 at at least one end thereof. Concrete 5 is then placed in the form 3 and hardened whereby the consolidation block having a curved cavity 6 for maintaining an ecosystem is formed therein. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to an ecosystem preservation consolidation block used particularly as a consolidation work in a river or the like.
[0002]
[Prior art]
Conventionally, in rivers, from the viewpoint of flood control such as reduction and prevention of flood damage, embankment work has been laid in order to prevent scouring of a front part of a seawall.
And such a shoring work is usually performed by a shoring block consisting of a flat concrete block.
[0003]
[Problems to be solved by the invention]
By the way, in the conventional stiffening block using such a flat concrete block, although a sufficient effect can be expected in terms of strength, the riverbed is regularly covered with a flat plate.
[0004]
Here, various fish and benthic organisms inhabit the river, and in particular, so-called benthic organisms such as eels that inhabit the river bottom have a habit of preferentially inhabiting the dark part of the river bottom. For benthic organisms, the above-described conventional stilting constructed with the flat-shaped stiffening blocks is unsuitable because of the small habitat space.
In addition, other fishes are evacuated to stagnation formed by a concave portion at the bottom of the river in order to avoid the flow when the water is increased due to a flood or the like. There is no safe place to save fish.
[0005]
In particular, in recent years, there has been a demand for the construction of an embankment emphasizing the ecosystem in consideration of the flora and fauna that inhabits the river, in order to preserve the natural environment of the river. It is not possible to cope with the old block.
[0006]
The present invention has been made in view of such conventional problems, and in particular, to provide an ecosystem preservation stubborn block capable of easily securing a habitat of benthic organisms and a method for producing the same. With the goal.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the method for producing an ecologically-conserved root-fixing block according to claim 1 of the present invention comprises a flexible tubular member that can be arbitrarily bent and disposed in a mold. After fixing at least one end to the wall surface of the mold, concrete is poured into the mold and solidified to form a curved cavity therein.
According to a second aspect of the present invention, there is provided a method of manufacturing an ecologically-conserved root-fixing block, wherein both ends of the flexible tubular member according to the first aspect are fixed to a wall surface of the formwork, and The flexible tubular member is formed longer than the shortest distance connecting the fixed portion with the formwork, and concrete is poured into the formwork and solidified, thereby curving inside and forming both ends. Is formed to form a penetrated hollow portion.
According to a third aspect of the present invention, there is provided a method for manufacturing an ecologically-conserved root-fixing block, wherein a bendable core material is mounted in the formwork according to the first or second aspect. After bending into a predetermined shape, after setting the shape of the hollow portion by arranging the flexible tubular member so as to cover this core material, concrete is poured into the formwork. It is characterized by being solidified.
According to a fourth aspect of the present invention, there is provided a method for manufacturing an ecologically-conserved root-fixing block according to any one of the first to third aspects, in which the formwork is fixed to the fixing portion of the flexible tubular member. A fixing member to which an end of the flexible tubular member is fitted is provided, and the fixing member performs positioning of the end of the flexible tubular member at the time of concrete casting, and The end of the flexible tubular member is closed to form an opening after the concrete is cast.
According to a fifth aspect of the present invention, there is provided a method for manufacturing an ecologically-conserved root perimeter block, wherein at least one end of the flexible tubular member according to any one of the first to third aspects includes the step of: An end of the flexible tubular member protrudes from the surface by mounting concrete through the wall surface of the formwork and casting and solidifying concrete in the formwork.
According to a sixth aspect of the present invention, there is provided an ecosystem-conserving root-fixing block formed by the production method according to any one of the first to fifth aspects.
The ecological preservation solidification block according to claim 7 of the present invention is formed on an adjacent ecosystem preservation solidification block when a plurality of the ecological preservation solidification blocks according to claim 6 are laid. The cavities are adapted to be communicated with each other.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a vertical cross-sectional view of a main part of a river on which a rock is constructed using the ecological preservation geological blocks 1 according to the present embodiment. It is constructed by laying along the riverbed at the lower end of the revetment 2.
[0009]
Here, one embodiment of a method of manufacturing the above-mentioned ecologically preserved perpetualization block 1 is described.
In the present embodiment, after at least one end of the flexible tubular member 4 arbitrarily bendable disposed in the mold 3 is fixed to the wall surface of the mold 3, the mold 3 A characteristic feature is that a curved cavity 6 is formed inside the concrete 5 by casting and solidifying concrete 5 therein, as shown in FIGS.
[0010]
In the present embodiment, as shown in FIG. 2, a bendable core 7 is mounted in the mold 3, the core 7 is bent into a predetermined shape, and then the core 7 is bent. The flexible tubular member 4 is disposed so as to cover the cavity 7 so that the shape of the cavity 6 is set.
[0011]
The flexible tubular member 4 is made of a flexible tube made of bendable plastic, soft vinyl chloride, paper, or the like, and one end of a cavity 6 formed by the flexible tube is used to protect the ecosystem. In the case where the flexible tubular member 4 is positioned inside the root support block 1, one end of the flexible tubular member 4 is closed, and the other end is formed on the wall surface of the form 3. By being abutted and fixed, it is closed by this wall surface.
In the case where both ends of the hollow portion 6 to be formed are opened on the surface of the ecological preservation stub block 1, both ends of the flexible tubular member 4 are formed by the mold. The frame 3 is closed by being fixed to the wall surface of the frame 3.
[0012]
The core 7 is made of a bendable wire, such as a reinforcing bar or a piano wire, and is curved so as to roughly conform to the shape of the cavity 6 to be formed. 4 is held in a curved state.
[0013]
Furthermore, in the present embodiment, a backup material 8 made of resin or the like is attached to the bottom of the formwork 3 so that the outer shape of the formed ecological consolidation block 1 approximates the shape of natural stone. When the mold 3 is removed after the concrete 5 is solidified, the backup material 8 is removed together with the mold 3.
[0014]
In this manner, the core member 7 and the flexible tubular member 4 are mounted in the mold 3 to which the backup material 8 is attached, and then the concrete 5 is poured into the space of the mold 3 and solidified. After this, the formwork 3 is removed to form the ecologically-conserved root-fixing block 1 as shown in FIGS. 3 and 4.
[0015]
In this way, an ecologically-conserved stubborn block 1 in which a number of cavities 6 having openings 6a on the outer surface are formed.
[0016]
For example, as shown in FIG. 5, the embankment block 1 for ecosystem preservation is inserted with a lifting wire 9 through the hollow portion 6 formed in a penetrating state, and is lifted by a crane via the wire 9. In this way, by arranging sequentially at a predetermined position on the riverbed, a shoring as shown in FIG. 1 is constructed.
[0017]
In the thus constructed shoring work, the hollow part 6 having the opening 6a opening to the outside is formed in each of the ecological conservation shoring blocks 1. A large number of continuous or closed spaces are formed.
As a result, a region where the flow of water is slow and a dark place is formed, and a region suitable for the inhabitation of benthic organisms such as eels can be easily obtained.
[0018]
In the present embodiment, the external shape of the ecological preservation root-fixing block 1 is made to be a shape close to that of natural stone. The top surface of the solid block 1 becomes irregular, and the riverbed is made uneven.
As a result, the flow of water in the vicinity of the river bottom becomes slow and stagnate, and a stagnation is formed, thereby providing a resting or refuge place for fish.
In addition, by repeatedly flooding, sediment is gradually deposited in the concave portion, and a vegetation zone is also formed.
[0019]
Therefore, these synergistic effects can easily provide a riverside environment suitable for the inhabitation of underwater animals.
[0020]
On the other hand, as shown in FIG. 6, when a plurality of the ecological preservation solidification blocks 1 are laid, the hollow portions 6 formed in the adjacent ecological preservation solidification blocks 1 communicate with each other. After the installation, the connecting member 10 is inserted into the adjacent cavity 6 after the installation, and each end of the connecting member 10 is fixed to the ecological preservation consolidation block 1 by the fixing member 11. As a result, it is possible to connect adjacent ecosystem preservation stubborn blocks 1.
This secures the weight of the constructed shoring and prevents this shoring from flowing out.
[0021]
7 to 10 show another embodiment of the present invention.
In the present embodiment, a rectangular parallelepiped ecosystem-conserving root-fixing block 21 having a large number of projections and depressions 20 for engagement is provided on the outer surface.
[0022]
In the present embodiment, both ends of the flexible tubular member 22 are fixed to the wall surface of the form 23 having the outer shape of the target ecosystem-conserving stiffening block 21 and the flexible tubular member 22 is fixed. The member 22 is formed to be longer than the shortest distance connecting the fixed portion with the mold 23, and the flexible tubular member 22 is attached to the fixed portion of the flexible tubular member 22 of the mold 23. A fixing member 24 to which the end of the flexible tubular member 22 is fitted is provided. With this fixing member 24, the end of the flexible tubular member 22 is positioned at the time of placing concrete, and the flexible tubular member 22 is positioned. The end of the member 22 is closed.
[0023]
Then, concrete is poured into the formwork 23 and solidified to form an uneven portion 20 on the surface, as shown in FIGS. The ecosystem-conserving root-fixing block 21 having the hollow portion 25 is obtained.
[0024]
By arranging such an ecosystem preservation stub block 21, when laying them, the uneven portions 20 formed in the adjacent ecosystem preservation stub block 21 are fitted to each other, These can be easily brought into a strong connection state.
[0025]
FIG. 11 shows a modification of the present invention, in which at least one end of the flexible tubular member 4 (22) is attached by penetrating the wall surface of the mold 3 (23). In this case, the end of the flexible tubular member 4 (22) protrudes from the surface of the formed ecological preservation stubborn block 1 (21).
[0026]
With such a configuration, a projecting portion that is continuous with the hollow portion 6 (25) is formed on the surface of the ecological preservation stubborn block 1 (21), and the projecting portion forms a bottom of eel or the like. An effect is obtained in that living organisms can easily enter the cavity 6 (25).
[0027]
Note that the shapes, dimensions, and the like of the respective constituent members shown in the above embodiment are merely examples, and can be variously changed based on design requirements and the like.
For example, the shape of the ecosystem-conserving roots block 1 (21) and the number and shape of the hollow portions 6 (25) formed therein can be set arbitrarily.
[0028]
【The invention's effect】
As described above, the present invention relates to a method of fixing the mold after fixing at least one end of an arbitrarily bendable flexible tubular member disposed in the mold to a wall surface of the mold. It is characterized by forming a curved cavity inside by casting concrete and solidifying it inside. When constructed, a continuous space part in the water can be easily formed in the vicinity of the riverbed, whereby a habitat suitable for benthic organisms in the river can be formed.
[Brief description of the drawings]
FIG. 1 is a longitudinal cross-sectional view of a main part showing a river provided with an embankment constructed according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a method for producing an ecologically-conserved root block according to one embodiment of the present invention.
FIG. 3 is a side view of an ecologically-conserved stiffening block manufactured according to an embodiment of the present invention.
FIG. 4 is a plan view of an ecologically-conserved stiffening block manufactured according to an embodiment of the present invention.
FIG. 5 is a schematic view showing an example of a method for laying an ecosystem-conserving perpetuated block manufactured according to an embodiment of the present invention.
FIG. 6 is a longitudinal sectional view showing an example of a method of connecting the ecologically preserved perennial blocks manufactured according to an embodiment of the present invention.
FIG. 7 is a plan view illustrating a manufacturing method according to another embodiment of the present invention.
FIG. 8 is a plan view of an ecologically-conserved root block manufactured according to another embodiment of the present invention.
FIG. 9 is a side view of an ecologically-conserved solidification block manufactured according to another embodiment of the present invention.
FIG. 10 is a side view of an ecologically preserved solidification block manufactured according to another embodiment of the present invention.
FIG. 11 is a vertical cross-sectional view of an ecosystem-conserving root-fixation block showing a modification of the present invention.
[Explanation of symbols]
DESCRIPTION OF REFERENCE NUMERALS 1 Ecological preservation root block 2 Seawall 3 Formwork 4 Flexible tubular member 5 Concrete 6 Cavity 6a Opening 7 Core material 8 Backup material 9 Wire 10 Connecting member 11 Fixing member 20 Uneven portion 21 For ecosystem preservation Rooting block 22 Flexible tubular member 23 Form 24 Fixing member 25 Cavity

Claims (7)

After fixing at least one end of the flexible tubular member arbitrarily bendable disposed in the mold to the wall surface of the mold, concrete is poured into the mold and solidified. A method for producing a consolidation block for ecosystem preservation, wherein a curved cavity is formed in the interior. While fixing both ends of the flexible tubular member to the wall surface of the mold, the flexible tubular member is formed longer than the shortest distance connecting the fixed portion with the mold, 2. The ecosystem preservation root according to claim 1, wherein concrete is poured into the formwork and solidified to form a penetrating cavity which is curved and has both ends opened. Manufacturing method of solid block. A bendable core material is mounted in the mold, and after bending the core material into a predetermined shape, the flexible tubular member is disposed so as to cover the core material, and the cavity is formed. The method according to claim 1 or 2, wherein after setting the shape of the part, concrete is poured into the formwork and solidified. A fixing member to which an end portion of the flexible tubular member is fitted is provided on a fixing portion of the flexible tubular member of the formwork, and the fixing member is used for the concrete casting. The end of the flexible tubular member is positioned, and the end of the flexible tubular member is closed to form an opening after the concrete is cast. Item 4. The method for producing an ecosystem-conserving root consolidation block according to any one of Items 3. By attaching at least one end of the flexible tubular member through a wall surface of the formwork and casting concrete in the formwork and solidifying the concrete, the flexible tubular shape is formed. The method according to any one of claims 1 to 3, wherein an end of the member protrudes from the surface. An embankment block for ecosystem preservation, which is formed by the production method according to claim 1. When laying a plurality of the ecological protection consolidation blocks according to claim 6, the cavities formed in adjacent ecological conservation consolidation blocks are made to communicate with each other. A distinctive feature of the ecological preservation block.

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