JP2017043961A - Construction cell structure body and construction method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction cell structure body and a construction method thereof, in which a filling material such as crushed rock and gravel does not come out or flow out for movement, with simple construction on site being possible, and with no work efficiency degrading.SOLUTION: A construction cell structure body includes a block containing a honeycomb like three-dimensional cubic cell structure body in which a plurality of long resins or fabric sheets with a plurality of holes being opened are provided side by side in width direction, being partially jointed repeatedly in zigzag manner with a predetermined interval from each other, which is developed in the direction orthogonal to the width direction to form a honeycomb-like cell, and a filling material packed in each cell, a mesh body arranged so as to cover the block, and a fixing bracket which contains a body part formed by bending a metal wire in almost V shape and a hook part in which both end parts of the metal wire are bent inward for engagement with each other. In the fixing bracket, while the body part is inserted upward into the hole, the hook parts are engaged with each other at an upper part of the mesh body, so that the mesh body is pinched and fixed on an opening surface side of the cubic cell structure body.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a construction cell structure used for slope protection, retaining walls, river bank protection, improvement of roadbed support, vegetation retaining walls, drainage channels, riverbeds, and the like and a construction method thereof.

Conventionally, in the field of civil engineering and construction, as a ground reinforcement for civil engineering applications such as road base materials, sidewalk foundation materials, temporary roads, retaining walls, levee slopes or slopes, to support heavy loads and prevent erosion, etc. In addition, a honeycomb-like three-dimensional solid cell structure is used.
A construction method using such a honeycomb-shaped three-dimensional solid cell structure is described in Patent Document 1, for example.

  That is, Patent Document 1 discloses a method for constructing a landfill waste disposal site having a bottom surface and a slope, and a plurality of water shielding sheets laid on substantially the entire bottom surface and / or slope. When the surfaces of a plurality of strip-shaped strips made of synthetic resin provided with openings are separated from each other in the direction perpendicular to the plane, the plurality of cells become parallel and spaced apart alternately. A cell structure in which a flexible cell structure that is joined is laid so as to form, and crushed stones and / or chestnuts are filled and compacted in the cells, and the crushed stones and / or chestnuts are sealed A body layer is formed, and the cell structure layer has a function of collecting and draining leachate from the final waste generated by precipitation, and an air flow path required for decomposing the final waste by aerobic microorganisms. Function as well as degassing from the final waste Method obtained by having both a function as the channel is described.

  As described above, due to the existence of the cell structure and the construction method described in Patent Document 1, it is necessary to provide a drainage pipe, an air flow path, and a gas vent flow path that require a high degree of expertise in the design. Is gone. In particular, since the cell structure layer can be formed on substantially the entire surface of the water-impervious sheet including the slope, the above functions are exhibited not only on the bottom but also on the slope. That is, compared to the case where the chestnut layer is provided only on the bottom surface, the drainage flow channel, the air flow channel, and the degassing flow channel can be configured on a wider surface. The possibility of clogging and the like can be dramatically reduced. Furthermore, in response to the large area of the cell structure layer, the amount of waste that can be landfilled per unit area can be increased. Further, by using the cell structure, it becomes easy to manage the gap ratio at the time of compaction of crushed stones, and further, the effect of reinforcing the roadbed is excellent. As a result, a crushed stone or chestnut layer that is highly resistant to changes in the ground under the impermeable sheet due to an earthquake or the like is provided.

JP 2011-200733 A

  However, even if crushed stones and chestnuts are laid down with heavy machinery, in the construction of slopes, drainage channels, etc., the crushed stones and chestnuts fall or flow depending on the surrounding conditions and move to the desired state. Is difficult to maintain. In particular, the fall of crushed stones and chestnuts is very dangerous in slope construction, and if the crushed stones and chestnuts move in a collection and drainage channel, a water flow different from the original plan is generated.

  Therefore, the present invention has been devised in view of such a conventional situation, and can be easily constructed on-site without the fillers such as crushed stones and chestnuts jumping out or flowing out and moving. It is an object of the present invention to provide a construction cell structure and its construction method that do not reduce the efficiency.

As a result of diligent investigations, the present inventors have found that the above problem can be solved by covering the opening surface of the cell structure with a net and fixing the cell structure and the net with a metal fitting. It came to complete. That is, the present invention is as follows.
[1]
A plurality of long pieces of resin or fiber sheets with a plurality of perforations formed therein are juxtaposed in the width direction and are partially joined in a staggered manner at predetermined intervals, and this is the width direction A block having a honeycomb-shaped three-dimensional three-dimensional cell structure that forms a honeycomb-shaped cell by extending in a direction perpendicular to each other, and a filler filled in each cell,
A net arranged to cover the block; and
A fixing metal fitting having a main body portion formed by bending a metal wire into a substantially V shape, and hook portions formed by bending both ends of the metal wire toward the inside so as to be engageable with each other;
In the state where the main body portion is inserted through the perforation hole in the upward direction, the fixing metal fitting is engaged with the hook portions at the upper portion of the mesh body, so that the fixing metal fitting is placed on the opening surface side of the three-dimensional cell structure. A construction cell structure characterized in that the mesh body is sandwiched and fixed.
[2]
The construction cell structure according to [1], wherein the filler includes one or more of crushed stone, chestnut stone, gravel, sand, and soil.
[3]
The construction cell structure according to [1] or [2], wherein the mesh body is any one of a wire conveyor belt, a metal lath, a knit wire mesh, a diamond mesh, a geogrid, and a resin net.
[4]
A plurality of long pieces of resin or fiber sheets having a plurality of perforations formed therein are juxtaposed in the width direction and partially joined in a staggered manner at a predetermined interval to each other. A method of laying one or more blocks of a honeycomb-shaped three-dimensional three-dimensional cell structure forming a honeycomb-shaped cell by extending in a direction orthogonal to a slope, smooth ground, or a slope, the following steps: :
(1) The block is extended on the slope, smooth ground, or slope, and (2) the main body formed by bending the metal wire into a substantially V shape, and both ends of the metal wire are engaged with each other. A fixing fitting having a hook portion that is bent inward as possible is inserted into the hole with the main body portion facing upward;
(3) At least one cell formed by the expansion is filled with a filler composed of one or more of crushed stone, chestnut stone, gravel, sand, and earth;
(4) Covering the opening surface of the honeycomb-shaped three-dimensional cell structure with a net;
(5) The mesh body and the three-dimensional cell structure are sandwiched and fixed by engaging the hook portions of the fixing metal fittings at the upper part of the mesh body;
The construction method of the construction cell structure characterized by comprising.
[5]
A plurality of long pieces of resin or fiber sheets arranged in parallel in the width direction are partially joined in a staggered manner at predetermined intervals to each other, and this is stretched in a direction perpendicular to the width direction to form a honeycomb-like A fixing bracket for fixing a mesh body arranged so as to cover the honeycomb-shaped three-dimensional three-dimensional cell structure on the upper part of the honeycomb-shaped three-dimensional three-dimensional cell structure forming the cell,
A fixing bracket comprising: a main body portion formed by bending a metal wire into a substantially V shape; and a hook portion formed by bending both end portions of the metal wire inward so as to be engageable with each other.

In the present invention, a plurality of resin or fiber sheets having a plurality of perforation holes are joined, a filler is contained in a three-dimensional cell structure that is surrounded by the resin or fiber sheet, and a three-dimensional cell structure By covering the opening surface of the body with a net body, the filler is prevented from detaching from the three-dimensional cell structure or moving. Also, the metal wire is bent in a substantially V shape, and the V-shaped main body portion is drilled upward by a fixing bracket that is bent in a hook shape so that both end portions can be engaged with each other. Since the mesh body and the three-dimensional cell structure are sandwiched in a state of being inserted through a hole and the mesh body is fixed to the opening surface side of the three-dimensional cell structure, the construction operation can be easily performed, and the construction efficiency is also high. Good.
Therefore, in the present invention, it is possible to provide a construction cell structure and a construction method thereof that can be easily constructed on-site without causing the filler to jump out or flow out, and without reducing work efficiency. it can.

It is a perspective view which shows an example of the construction cell structure which concerns on this invention. It is a photograph which shows the construction state of the construction cell structure which concerns on this invention. It is a perspective view which shows the three-dimensional cell structure in the construction cell structure of this invention. It is the front view which showed an example of the fixing metal fitting in the construction cell structure of this invention. It is a perspective view which shows the state which attached the fixing metal fitting to the three-dimensional cell structure. It is a perspective view which expands and shows the state which attached the fixing metal fitting to the three-dimensional cell structure. It is a perspective view which shows the state which filled the three-dimensional cell structure with the filler.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that, in the embodiments, the same reference numerals and the same reference numerals are the same or corresponding functional parts, and therefore, redundant description thereof may be omitted here.

FIG. 1 is a perspective view showing a configuration example of a construction cell structure according to the present embodiment. FIG. 2 is a photograph showing an actual construction state.
In the construction cell structure 1 according to the present embodiment, a plurality of long pieces of resin or fiber sheet 2 in which a plurality of perforation holes (perforation holes 4, oval anchor holes 6) are perforated are formed in the width direction. The honeycomb-shaped three-dimensional cell structure is formed in parallel with each other and partially joined in a staggered manner at predetermined intervals to form a honeycomb-shaped cell 5 by extending it in a direction perpendicular to the width direction. A block having a body 10 and a filler 30 filled in each cell, a net 40 disposed so as to cover the block, and a main body 51 formed by bending a metal wire into a substantially V-shape. And hooks 52a and 52b that are bent inward so that both end portions can be engaged with each other, and the fixing bracket 50 has a V-shaped main body 51 formed upward. In the hole (drilled hole 4 or oval anchor hole 6) When the hooks 52a and 52b are engaged with each other at the upper part of the mesh body 40 in the passed state, the mesh body 40 is sandwiched and fixed on the opening surface side of the three-dimensional cell structure 10. It is characterized by that.

  The honeycomb-shaped three-dimensional three-dimensional cell structure (three-dimensional cell structure 10) according to the present invention has a plurality of long pieces of resin or fiber sheets 2 arranged side by side in the width direction in a staggered manner at predetermined intervals. The honeycomb cells 5 are formed by spreading them in a direction perpendicular to the width direction. The honeycomb-shaped three-dimensional three-dimensional cell structure 10 according to the present embodiment is generally used as a ground reinforcement material for civil engineering applications such as road base materials, sidewalk foundation materials, temporary roads and retaining walls in the field of civil engineering and architecture. The honeycomb-shaped three-dimensional cell structure 10 as shown in FIG. 3 used for supporting a heavy load or preventing erosion can be used, but is not limited thereto. The cell structure 10 can be, for example, “GEOWEB” (Geoweb; registered trademark).

The material of the resin or the fiber sheet 2 is not particularly limited as long as it can cope with ultraviolet rays and environmental temperature changes. For example, low density polyethylene, polyurethane, polyvinyl chloride, or the like can be used. In particular, a high-density polyethylene to which a necessary amount of a plasticizer and a filler is added as a material resistant to ultraviolet rays and resistant to temperature changes is preferable.
The resin or the fiber sheet 2 does not contaminate the natural world with a plasticizer or the like, and does not deform with respect to a temperature change in the natural world. Yes, as long as it is lightweight, flexible, strong in mechanical strength, and can withstand ultraviolet rays.
The resin or the fiber sheet 2 may be formed of a material in which fiber materials are mixed. The fiber material may be any of chemical fiber, plant fiber, glass fiber, carbon fiber and the like.

In the resin or fiber sheet 2 of the present embodiment, a circular perforation hole 4 is mechanically perforated after extrusion, and through holes are provided at intervals of about 2 to 5 cm (distance between the centers). Yes.
Moreover, between the surfaces of adjacent resin or fiber sheets 2 is an interval between surfaces of adjacent resin or fiber sheets 2 of 50 to 120 cm, and the surfaces of opposing resin or fiber sheets 2 are integrated by high frequency dielectric heating. The fused part 3 is formed. Further, the fusion part 3 may be formed as one row or two rows. An adhesive may be used if a specific mechanical strength is obtained.

  As for the space | interval (pitch) of joining (fusion | fusion) of resin or the fiber sheet 2, 200-800 mm is preferable. The joining is performed by means such as heat fusion. The width of the joint (fused part 3) is usually 10 to 20 mm. Due to the existence of a constant width of such a joint, two opposing corners are directed toward the inner side of the cell in a cell shape that is substantially diamond-shaped when stretched. It will be crushed (see FIG. 3). Each block of the above honeycomb-shaped three-dimensional three-dimensional cell structure 10 preferably has 3 to 40 cells in the vertical direction and 5 to 10 cells in the horizontal direction. The size of the cell structure 10 after expansion is preferably 700 to 8000 mm in length, 2000 to 3500 mm in width, and 100 to 400 mm in height of the long-sided resin or fiber sheet 2. The height of the sheet 2 of the honeycomb-shaped three-dimensional cell structure 10 used in the present invention is 15 to 50 cm, preferably 15 to 35 cm, more preferably 20 to 30 cm, and the cell 5 The length (inside dimension) L of one side can be 25 to 60 cm, preferably 30 to 50 cm.

  Usually, in order to obtain a mechanical joining force, it is desirable that the fused portion 3 is not a portion where the pierced hole 4 is drilled. However, since there is a possibility that it may be difficult to perform workability formally if it is not at all, it is desirable to drill only two or three places. Moreover, since this fusion | fusion part 3 will stop movement by a dedicated anchor or a pile when the solid cell structure 10 is comprised, an oval drilling hole is punched out as the ellipse anchor hole 6 for it. Is desirable. In the present embodiment, as shown in FIG. 5, the pile 20 is driven into the oval anchor hole 6.

  In general, the cell structure 10 is folded for each block, carried to the site, expanded on the surface of the construction site, and the blocks are connected to each other. Generally, sand, crushed stone, concrete are formed in each formed cell. The filling material 30 such as on-site generated soil is filled up to the height of the sheet 2 (the top end of the cell structure 10), and is laminated in some cases to construct a bank wall surface or the like.

The three-dimensional cell structure 10 shown in FIG. 3 is filled with one or more of crushed stone, chestnut stone, gravel, sand, and soil as the filler 30 (see FIG. 7).
The natural stone used in the present invention can be crushed stone, cobblestone or the like, and is not particularly limited. In the present invention, an artificial object such as a concrete lump can be used instead of natural stone. From the viewpoint of generating a sufficient frictional force with the cell structure 10 and from the viewpoint of not being washed away during floods, availability, economy, construction work ease, harmlessness, etc., it has a constant mass. A crushed stone for concrete having a frictional resistance on the surface and inexpensive, for example, an average particle size of about 2 cm to 4 cm is preferable.
The filler 30 accommodated on the entire surface of the three-dimensional cell structure 10 depends on the state of use such as slope protection, retaining wall, river revetment, improvement of roadbed support, vegetation retaining wall, drainage channel, river bed, etc. What to fill is specified. Of course, one or more of crushed stone, chestnut stone, gravel, sand, and earth may be used in combination as the filler 30. Also, planting and sowing seeds at the same time. Moreover, the thing with the largest diameters of about 250-100 mm, such as a crushed stone and a chestnut stone, may be used as the filler 30 alone. Usually, the packing density is increased by large and small stones. Here, the maximum length of crushed stone is 400 to 250 mm, the maximum length of chestnut is 250 to 100 mm, the maximum length of gravel is 100 to 10 mm, the maximum length of sand is 10 to 1 mm, and the maximum length of soil is 1 mm or less. It was distinguished on the assumption.

  The net body 40 covers the opening surface 15 of the three-dimensional cell structure 10 so that the filler 30 filled in the three-dimensional cell structure 10 does not move and flow out, and protects the slope, retaining wall, river bank. The size of the mesh, the type of mesh, and the strength of the mesh are determined by the environment used, such as the improvement of the bearing capacity of the roadbed, the vegetation retaining wall, the drainage channel, and the riverbed.

Mesh 40 is plain woven wire mesh, twill woven wire mesh, flat woven wire mesh, twill woven wire mesh, crimp wire mesh, welded wire mesh, turtle shell wire mesh, rhombus wire mesh, knitted wire wire mesh, wire conveyor belt wire mesh, stamped wire mesh, metal lath, geogrid Any of the resin nets may be used, or the net body 40 that decays with the aging described above or the net body 40 such as a synthetic resin may be used. Even if the size of the filler 30 is relatively large, the entire wire conveyor belt, metal lath, knit wire mesh, rhombus wire mesh, geogrid, and resin net can be covered. Also, the strength can be freely set mechanically.
The net body 40 is placed on the filler 30 filled in the three-dimensional cell structure 10, fixed to the three-dimensional cell structure 10 at various points of the net body 40, and the separation of the filler 30 filled in the three-dimensional cell structure 10 is removed. It is preventing.
In the present embodiment, covering the opening 15 of the three-dimensional cell structure 10 so that the filler 30 does not move and flow out of the opening 15 in which the filler 30 is accommodated in the three-dimensional cell structure 10. In general, the filler 30 is used to prevent movement and outflow of a large volume of crushed stone, chestnut, gravel, sand, and soil, and does not mean that a small one is prevented from moving and outflowing. . Also, it does not mean that even a large volume is not prevented.

  The shape of the net body 40 is not particularly limited as long as it can prevent movement and outflow of the filler in a state where the shape is arranged and fixed on the upper surface of the three-dimensional cell structure 10 so as to close the opening. For example, the mesh or lattice-like structure of the mesh body 40 may be a repetitive structure with a rectangle as a unit, and the rectangle may be 30 mm to 70 mm wide × 80 mm to 400 mm long. In addition, the mesh or lattice-like structure of the mesh body 40 may be a repetitive structure having a rhombus as a unit, and the distance between the short direction centers of the rhombus is 30 mm to 70 mm, and the distance between the long direction center. Can be 100 mm to 200 mm. Of course, the net body 40 must have sufficient strength to withstand the embankment method.

  As for the overall shape of the three-dimensional cell structure 10, the resin or fiber sheets 2 are joined in a staggered manner, so that the three-dimensional cell structure 10 is released at the end of the three-dimensional cell structure 10. Therefore, the net body 40 cuts out the released three-dimensional cell structure 10, and the net body 40 is a hole 4 or an elliptical anchor hole 6 in the resin or fiber sheet 2 of the released three-dimensional cell structure 10. It may be fixed to. Further, the three-dimensional cell structure 10 may be covered with another pile or anchor, or a wire may be put on four sides of the net body 40 and fixed with a pile or anchor not shown.

In order to integrally connect the three-dimensional cell structure 10 and the net body 40, the fixing bracket 50 is used in the present invention.
4A and 4B are diagrams showing an example of the fixture 50 in the construction cell structure 1 of the present invention. FIG. 4A is a front view and FIG. 4B is a side view.
The fixture 50 has a main body portion 51 formed by bending a metal wire into a substantially V shape, and hook portions 52a and 52b formed by bending both end portions of the metal wire inward so as to be engageable with each other.
The fixing metal fitting 50 used in the present embodiment is made of, for example, a stainless steel metal wire having a diameter of 2 to 3 mm and a total length of 20 to 30 cm, and the whole is V-shaped with a width of 10 to 15 cm from the center. The main body 51 is curved. Further, the hook portions 52a and 52b are bent inward in a hook shape so that both end portions thereof are engaged with each other. The overall length of the fixture 50 is, for example, about 10 cm.

For example, as shown in FIG. 5 and FIG. 6, the fixing bracket 50 has a body portion 51 having a substantially V shape at a depth in the length direction. It is inserted into the drill hole 4 or the ellipse anchor hole 6. At this time, the main body 51 of the fixing bracket 50 has a substantially V shape with a wide opening side, so that it is easy to perform the operation of inserting into the drilling hole 4 or the ellipse anchor hole 6 and the workability is improved.
In the example shown in FIG. 5, the fixing bracket 50 is inserted through the drilling hole 4, but the present invention is not limited to this, and the fixing bracket 50 may be inserted through the oval anchor hole 6 (FIG. 6). Since the fusion part 3 in which the ellipse anchor hole 6 is drilled is thicker and stronger than the other parts, the fixing bracket 50 can be inserted into the ellipse anchor hole 6 more securely. The fixing member 50 is supported, and the net body 40 can be fixed.
As shown in FIGS. 1 and 2, the mesh body 40 and the three-dimensional cell structure 10 are integrally held by engaging the hook portions 52a and the hook portions 52b at the end at the upper portion of the mesh body 40. Will be.

  Note that the two hook portions 52a and 52b may be further bent so as to have an angle with respect to the plane instead of being on the same plane with respect to the plane formed by the main body portion 51. That is, when the fixing bracket 50 is viewed from the head side, the two hook portions 52a and 52b are not substantially straight but may be diagonally opposed so as to be twisted. Since the two hook portions 52a and 52b face each other diagonally, the three-dimensional cell structure 10 and the net body 40 can be sandwiched and fixed two-dimensionally, for example, at an intersection of the net body 40 or the like.

  The positions of the hook part 52a, the hook part 52b, the drill hole 4 and the oval anchor hole 6 of the fixing metal 50 are determined by the relative relationship between the position of the net body 40 and the position of the resin or fiber sheet 2. Accordingly, the countless drill holes 4 and the ellipse anchor holes 6 are drilled in the resin or fiber sheet 2, so that the fixing bracket 50 is locked in any of the drill holes 4 or the ellipse anchor holes 6. As a result, the three-dimensional cell structure 10 and the net body 40 can be constrained together in the fixing bracket 50. Moreover, even if the positions of the three-dimensional cell structure 10 and the net 40 are changed, the fixing metal fitting 50 is formed long, so that even if the filler 30 is put into the three-dimensional cell structure 10, it is turned by heavy machinery. Even if the pressure is applied, the solid state can be maintained without being broken by the margin of the fixing bracket 50.

  In the fixing bracket 50 to which the mesh body 40 and the three-dimensional cell structure 10 are fixed, the hook portions 52a and the hook portions 52b at both ends engage with each other, so that the mesh body 40 and / or the three-dimensional cell structure 10 is provided inside. However, only the movement within the fixing bracket 50 is allowed within the range allowed by the mesh body 40 and / or the three-dimensional cell structure 10, and the mesh body 40 and / or the three-dimensional object is completely included. The movement of the cell structure 10 is not prohibited.

  Therefore, as shown in FIG. 1, a plurality of resin or fiber sheets 2 in which a plurality of perforation holes 4 and oval anchor holes 6 are perforated are joined, and the periphery is surrounded by the resin or fiber sheet 2. The filler 30 accommodated in the three-dimensional cell structure 10 does not move any of crushed stone, chestnut stone, gravel, sand, and soil of the filler 30 from the opening surface 15 in which the filler 30 is accommodated in the three-dimensional cell structure 10. As described above, the opening surface 15 of the three-dimensional cell structure 10 can be covered with the net body 40, and the net body 40 can be put on the opening surface 15 side of the three-dimensional cell structure 10 and fixed by the fixing metal fitting 50.

The construction cell structure 1 of the present embodiment of the above embodiment can be constructed by the following construction method.
This construction method includes the following steps. That is,
(1) A plurality of long pieces of resin or fiber sheets 2 having a plurality of perforated holes 4 formed on a slope, smooth ground, or slope are arranged side by side in the width direction and at predetermined intervals. One or more blocks of the honeycomb-like three-dimensional three-dimensional cell structure 10 that forms a honeycomb-like cell are stretched by joining them partially in a staggered manner and extending them in a direction perpendicular to the width direction (see FIG. 3).
(2) The main body 51 of the fixture 50 is inserted with the opening side upward in a drilling hole (the drilling hole 4 or the ellipse anchor hole 6) drilled in the resin or fiber sheet 2 (see FIG. 5 and FIG. 6).
(3) In at least one cell 5 formed by the expansion, a filler 30 composed of one or more of crushed stone, chestnut stone, gravel, sand, and soil is filled (see FIG. 7).
(3) The opening surface of the honeycomb-shaped three-dimensional three-dimensional cell structure 10 is covered with a net body 40.
(4) By engaging the hook portions 52a and 52b of the fixture 50 at the upper part of the mesh body 40, the mesh body 40 and the three-dimensional cell structure 10 are sandwiched and fixed (see FIGS. 1 and 2). .

Therefore, in this construction method, the filler 30 is accommodated in the three-dimensional cell structure 10 that is surrounded by the resin or the fiber sheet 2, and the opening surface 15 in which the filler 30 filled in the three-dimensional cell structure 10 is accommodated. The opening 30 of the three-dimensional cell structure 10 is covered with the net body 40 so that the filler 30 does not move from the surface, and the net 40 and the three-dimensional cell structure 10 are sandwiched by the fixing bracket 50, and the opening surface of the three-dimensional cell structure 10 Since the net body 40 is fixed to the 15 side, it can be constructed by a simple operation.
In particular, even if crushed stones and chestnut stones are solidified by heavy machinery, they will not fall or move depending on the circumstances of the crushed stones or chestnut stones in the slope construction, drainage flow path, or the like. Moreover, even if the amount of water increases or decreases in the drainage channel, etc., crushed stones and chestnuts do not move, so it is difficult for fine soil and sand to move, and an unpredictable water flow does not occur.
Therefore, the construction cell structure 1 of the present embodiment can be easily constructed on site without the filler 30 such as crushed stones and chestnuts popping out, and the work efficiency is not lowered.

  The fixed metal fitting 50 of the construction cell structure 1 is generally V-shaped, and both ends thereof are curved inwardly to form hook portions 52a and hook portions 52b. By engaging the portion 52a and the hook portion 52b so that a part of the perforation hole 4 and the mesh body 40 of the three-dimensional cell structure 10 is accommodated in the fixing bracket 50, it can be easily released even if an external force is applied. It will not be done. Normally, an external force that opens the substantially V-shaped fixing bracket 50 is not applied, so that a stable mounting state can be secured.

  In the construction method of the construction cell structure 1 described above, the plurality of resin or fiber sheets 2 in which the perforation holes 4 of the three-dimensional cell structure 10 are perforated are parallel to the resin or fiber sheet 2 and face each other. Since it is joined, it becomes a compact three-dimensional cell structure 10 without being bulky even when it is brought into the field, and handling such as carrying, assembling and construction becomes easy.

Moreover, in the construction method of the construction cell structure 1, the fixing metal fitting 50 is generally V-shaped as a whole, and both ends thereof are bent inwardly to form a hook portion 52a and a hook portion 52b, which can be engaged with each other. Therefore, the net body 40 can be fixed to the three-dimensional cell structure 10 with a simple operation, and the workability is good.
Since the mesh body 40 is one of a wire conveyor belt, a metal lath, a knit wire mesh, a rhombus wire mesh, a geogrid, and a resin net, any mechanical strength can be obtained and it can be adapted to the environment. Can be made inexpensively.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and can be appropriately changed without departing from the spirit of the invention.
For example, in the above explanation

  By using the construction cell structure according to the present invention, it is possible to easily perform construction on site without moving the filler material by jumping out or flowing out, and without reducing the work efficiency, protecting the slope. It can be widely used as a construction cell structure used for retaining walls, river revetments, improvement of roadbed support, vegetation retaining walls, drainage channels, riverbeds, etc.

1: Construction cell structure 2: Resin or fiber sheet 3: Fusion part 4: Drilling hole 5: Cell 6: Ellipse anchor hole 10: Solid cell structure 15: Opening surface 20: Pile 30: Filler 40: Net body 50: Fixing bracket 51: Main body 52a: Hook 52b: Hook

Claims (5)

A plurality of long pieces of resin or fiber sheets with a plurality of perforations formed therein are juxtaposed in the width direction and are partially joined in a staggered manner at predetermined intervals, and this is the width direction A block having a honeycomb-shaped three-dimensional three-dimensional cell structure that forms a honeycomb-shaped cell by extending in a direction perpendicular to each other, and a filler filled in each cell,
A net arranged to cover the block; and
A fixing metal fitting having a main body portion formed by bending a metal wire into a substantially V shape, and hook portions formed by bending both ends of the metal wire toward the inside so as to be engageable with each other;
In the state where the main body portion is inserted through the perforation hole in the upward direction, the fixing metal fitting is engaged with the hook portions at the upper portion of the mesh body, so that the fixing metal fitting is placed on the opening surface side of the three-dimensional cell structure. A construction cell structure characterized in that the mesh body is sandwiched and fixed.   The construction cell structure according to claim 1, wherein the filler is one or more of crushed stone, chestnut stone, gravel, sand, and soil.   The construction cell structure according to claim 1 or 2, wherein the mesh body is any one of a wire conveyor belt, a metal lath, a knit wire mesh, a diamond mesh, a geogrid, and a resin net. A plurality of long pieces of resin or fiber sheets having a plurality of perforations formed therein are juxtaposed in the width direction and partially joined in a staggered manner at a predetermined interval to each other. A method of laying one or more blocks of a honeycomb-shaped three-dimensional three-dimensional cell structure forming a honeycomb-shaped cell by extending in a direction orthogonal to a slope, smooth ground, or a slope, the following steps: :
(1) The block is extended on the slope, smooth ground, or slope, and (2) the main body formed by bending the metal wire into a substantially V shape, and both ends of the metal wire are engaged with each other. A fixing fitting having a hook portion that is bent inward as possible is inserted into the hole with the main body portion facing upward;
(3) At least one cell formed by the expansion is filled with a filler composed of one or more of crushed stone, chestnut stone, gravel, sand, and earth;
(4) covering the opening surface of the honeycomb-shaped three-dimensional three-dimensional cell structure with a net;
(5) The mesh body and the three-dimensional cell structure are sandwiched and fixed by engaging the hook portions of the fixing metal fittings at the upper part of the mesh body;
The construction method of the construction cell structure characterized by comprising. A plurality of long pieces of resin or fiber sheets arranged in parallel in the width direction are partially joined in a staggered manner at predetermined intervals to each other, and this is stretched in a direction perpendicular to the width direction to form a honeycomb-like A fixing bracket for fixing a mesh body arranged so as to cover the honeycomb-shaped three-dimensional three-dimensional cell structure on the upper part of the honeycomb-shaped three-dimensional three-dimensional cell structure forming the cell,
A fixing bracket comprising: a main body portion formed by bending a metal wire into a substantially V shape; and a hook portion formed by bending both end portions of the metal wire inward so as to be engageable with each other.