JP4739099B2 - Greening panel - Google Patents

Description

  The present invention relates to a greening panel that is laid on a slope in order to prevent skin fall or surface collapse such as a mountain face that has naturally collapsed, land creation, or a mountain face that has been scraped off for road construction.

  In recent years, a method of using a concrete block as a pressure-receiving structure that receives the load on the slope is adopted to stabilize the slope in road construction, etc., and instead of the concrete block to reduce the weight, reinforced glass fiber A greening panel using a pressure receiving plate made of urethane foam (FFU) is known. In addition, a construction method for constructing a frame by placing concrete on a slope is also known. For example, the following technologies are disclosed in relation to such weight reduction of the greening panel and stabilization at the time of laying the panel.

  In Patent Document 1, when a pressure-receiving structure having a lattice shape is inserted into an anchor bolt fixed to a slope ground, a presser plate is inserted and stacked thereon, and the presser plate is tightened by screwing a nut. A method of fixing a pressure receiving structure in which the applied pressure is dispersed is described.

Patent Document 2 has a thickness that includes a number of squares, pentagons, hexagons, octagons, and other polygons, circles, ellipses, and other types of shapes, or two or more shapes, vertically and horizontally. Thus, a greening panel made of steel and laid on a slope is described.
Japanese Patent No. 3461142 JP 2004-124633 A

However, the conventional techniques described in Patent Documents 1 and 2 have the following problems.
In the fixing method of the pressure receiving structure described in Patent Document 1, the pressure receiving structure that becomes the greening panel has low rigidity, so that it bends at the time of bolt tightening and the pressure cannot be effectively dispersed. There was a problem.
Since the panel for greening in Patent Document 2 is made of a heavy steel material, in addition to lack of handleability at the time of panel construction due to its weight, metal is eluted to the surroundings due to long-term corrosion, etc. There is a problem that there is a fear that the environmental sustainability may be lacking.

  The present invention has been made in order to solve the above-described conventional problems, and provides a greening panel that has a predetermined rigidity, durability, and handling properties to provide a greening panel that has excellent construction stability and environmental sustainability. The purpose is to do.

The greening panel according to claim 1 of the present invention is:
Equipped with a grid-like structure that crosses multiple vertical bars and horizontal bars,
A greening panel laid on a slope having a grid surrounded by the vertical rail and the horizontal rail,
Reinforcing members are embedded at predetermined intervals from each other over the entire longitudinal length of the vertical beam and / or the horizontal beam of the lattice structure ,
In the central part of the greening panel,
A part of the vertical and horizontal bars of the lattice structure and a central missing part provided without the reinforcing member,
A bolt fixing part (25) provided with an inverted conical tapered hole (25b) in the center is formed in the central missing part,
In the tapered hole (25b),
A detachable bolt receiving member (27) for fixing an anchor bolt inserted into the soil is inserted.
The greening panel according to claim 2 is the same as claim 1,
The reinforcing member is
The glass fiber bundle (14) made of long glass fibers is embedded in the vertical beam (11) and the horizontal beam (12) so as to be arranged in parallel above and below the reinforcing bar (13). To do.
The greening panel according to claim 3 is the method according to claim 1 or 2,
The reinforcing member is made of a metal wire, a metal bar, glass fiber or synthetic resin fiber, and a combination thereof.
The greening panel according to claim 4 is:
Equipped with a grid-like structure that crosses multiple vertical bars and horizontal bars,
A greening panel laid on a slope having a grid surrounded by the vertical rail and the horizontal rail,
In the central part of the greening panel,
A center missing portion is provided by lacking a part of the vertical and horizontal bars of the lattice structure,
A bolt fixing portion (25) having an inverted conical tapered hole (25b) in the center is formed in the central missing portion, and
A reinforcing member is embedded in the shape of a cross beam inside the horizontal beam and / or the vertical beam around the bolt fixing portion for fixing the anchor bolt (28), and the periphery of the bolt fixing portion (25) is reinforced.
In the tapered hole (25b),
A detachable bolt receiving member (27) for fixing an anchor bolt inserted into the soil is inserted.

  According to the present invention, since the reinforcing bars are embedded inside the vertical bars and the horizontal bars of the lattice structure at predetermined intervals, the greening panel is provided with predetermined rigidity, durability, and handling properties. Therefore, it is possible to provide a greening panel having excellent construction stability and environmental sustainability when laying on a slope.

The greening panel of the present embodiment is a plate-like body (approximately 500 to 1000 mm in length and width and 10 to 50 mm in thickness) that is formed in a substantially square shape or quadrangular shape as a whole, and has a plurality of thicknesses of about 3 to 10 mm. It has a lattice-like structure in which vertical bars and horizontal bars made of rows intersect, and reinforcing members are embedded in the vertical bars and / or horizontal bars at predetermined intervals. . Moreover, the reinforcement member should just be embed | buried in the shape of a cross-beam at least inside the horizontal beam and / or vertical beam around the bolt fixing part of a greening panel.
As a result, when laying a green panel on a slope during land preparation or road construction, it can be given rigidity and durability, while maintaining handling properties and construction stability while maintaining excellent environmental sustainability. Can be made.

  In addition, the greening panel of the present embodiment includes a detachable bolt receiving member for fixing an anchor bolt inserted into the soil at the center of the lattice structure in order to lay the greening panel on the slope. As a result, it is possible to effectively increase the durability around the bolt fixing portion that is most likely to be loaded and damaged, and to provide a greening panel that is excellent in lightness and economy by using the minimum necessary reinforcing members. be able to.

Examples of the reinforcing member embedded in the horizontal and / or vertical beam having a lattice structure include a wire, a bar, a pipe and the like. Examples of the material of the reinforcing member include metal members such as stainless steel, steel, copper, aluminum, and aluminum alloy, glass fibers, and synthetic resin fibers.
Examples of synthetic resin fibers include nylon (polyamide), vinylon (polyvinyl alcohol fiber), polyester (polyethylene terephthalate, etc.), acrylic (polyacrylonitrile, etc.), polyolefin (polyethylene, polypropylene, etc.), polyurethane, and the like. And can be appropriately selected and used according to the construction conditions.

The thickness of the reinforcing member is preferably in the range of 0.2 to 5 mm. If the thickness of the reinforcing member is less than 0.2 mm, it is difficult to effectively reinforce the panel. Conversely, if the thickness exceeds 5 mm, the pier wall for holding the reinforcing member becomes thicker than necessary. This is because it has to be formed, and the weight of the greening panel is increased, resulting in poor handling.
The glass fiber and the synthetic resin fiber can be used as a reinforcing member having a predetermined thickness and length by twisting a very thin thread-like material having a thickness of about 5 to 10 μm into a cord-like body.

The reinforcing member can be disposed in the mold when the lattice structure is formed using a synthetic resin. For example, the reinforcing members can be sequentially embedded in the horizontal beam and / or the vertical beam by a procedure of filling resin in the molds to be the vertical beam or horizontal beam, filling the reinforcing member, and refilling the resin.
By embedding the reinforcing member in the vertical and / or horizontal beam of the greening panel, the rigidity and strength when pressure is applied to the greening panel laid on the slope can be increased more effectively, and reinforcement By selecting and combining materials such as metal wires, glass fibers, and synthetic resin fibers, which are members, a greening panel having economic efficiency and workability corresponding to the construction environment can be obtained.

  It is preferable to use a synthetic resin such as polyethylene as the main component of the vertical bars and horizontal bars of the greening panel of the present invention. By using synthetic resin such as polyethylene as the main component of the vertical and horizontal rails of the greening panels, the panel can be reduced in weight and toughness, and has the advantage that there is no concern about corrosion due to acidic soil or other factors. .

  In addition, the main component of the vertical beam and the horizontal beam can be a biodegradable plastic. As a result, after the slope is stabilized by the greening panel, the main component of the greening panel can be reduced and dispersed as a soil component in the soil, and can be used as a greening panel with excellent environmental protection. . Biodegradable plastics are macromolecules that are degraded by microorganisms, and are made from corn, which has polyesters mainly composed of 3-hydroxybutyrate fermented and synthesized by microorganisms, peptide bonds, and ether bonds of polysaccharides. The thing containing polylactic acid obtained as above can be applied.

  When the greening panel of this embodiment is used in a cut-reinforced earth method that can be fully greened, it can easily follow the shape of the ground as the slope of the cut-reinforced earth, and the conventional concrete can be used. Compared to the conventional one, it does not require a concrete curing period and is excellent in construction on site. Moreover, when a greening panel is used, parallel work such as cutting and reinforcing soil can be performed, so that the construction period can be shortened by laying sequentially from the place where the cutting reinforcing soil has been completed.

Example 1
Hereinafter, the greening panel of Example 1 of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of the entire greening panel according to the first embodiment. FIG. 2 is a partially cutaway view thereof.
1 and 2, reference numeral 1 denotes a greening panel according to the first embodiment. The greening panel 1 includes a vertical beam 11 and a horizontal beam 12 each of which forms a lattice-like structure of the greening panel 1 and has a plurality of rows. Reinforcing bars (reinforcing members) 13 embedded at intervals are provided. As shown in the figure, the reinforcing bars 13 are respectively embedded along the entire length in the longitudinal direction (vertical / horizontal direction of the greening panel) inside the vertical beam 11 and the horizontal beam 12.

In Example 1, the whole is formed in a panel shape having a length and width of about 970 mm and a thickness of about 40 mm. The reinforcing bar 13 as a reinforcing member has a diameter of 3 mm and a length substantially equal to the length and width of the greening panel 1. The length is equal to about 970 mm, and one of each of the vertical beam 11 and the horizontal beam 12 is embedded in the approximate center in the thickness direction of the beam.
Depending on the conditions of use of the greening panel, the reinforcing bars 13 as reinforcing members are arranged in each bar so that there are two or more reinforcing bars 13 at predetermined intervals, and the durability and strength thereof. You may make it adjust, etc., it is possible to embed it in both the vertical beam and the horizontal beam, or to embed it in either beam. It can also be buried in a thinned state on a vertical beam or a horizontal beam.

FIG. 3 is a cross-sectional view of a vertical beam (a) and a horizontal beam (b) showing an example in which two types of reinforcing members are embedded in a greening panel. That is, a glass fiber bundle 14 (reinforcing member) made of long glass fibers is embedded in the vertical beam 11 and the horizontal beam 12 so as to be in parallel with the reinforcing bar 13 (reinforcing member).
In FIG. 3, two glass fiber bundles 14 and one reinforcing bar 13 are attached to a vertical beam 11 and a horizontal beam 12 having an isosceles trapezoidal shape having a cross-sectional shape of an upper side of 5 mm, a lower side of 7 mm, and a height of 40 mm. An example of burial is shown.

FIG. 4 is an explanatory diagram showing an example of manufacturing the greening panel 1 of the present invention using the manufacturing form (c). As shown in FIG. 4, the longitudinal grooves 21 and the transverse grooves 22 of the production form 20 are filled with a molten synthetic resin as a raw material and cooled and solidified to form the longitudinal bars 11 and the horizontal bars 12, thereby having a lattice structure. The greening panel having a predetermined shape can be formed. In addition, since the greening panel is provided with a bolt fixing part (described later) for fixing the anchor bolt at the center of the greening panel, it is necessary to cut and remove the vertical beam and the horizontal beam of the part where the bolt fixing part is provided. There is.
In the present invention, as shown in FIG. 4 (b), in order to prevent the resin from being loaded in the portion where the bolt fixing portion is provided, the vertical beam in the central portion of the lattice structure, the vertical groove 21 and the horizontal groove 22 where the horizontal beam is formed in advance. Producing greening panels with the central part of the lattice structure (vertical and horizontal bars) missing by interposing the cross-shaped baffle plate 23 (see FIG. 4A) to prevent the intrusion of the molten resin. (See FIG. 5B).

  After manufacturing the greening panel in which such a central missing portion (portion where the vertical cross and horizontal cross are missing in the central portion) is formed, a bolt fixing portion 25 is newly formed in the central missing portion of the greening panel. The bolt fixing portion 25 includes an inverted conical tapered hole 25b for inserting the bolt receiving member 27 in a removable manner. The bolt fixing portion 25 can be formed by pouring molten resin into the central missing portion, but can also be fitted with a preformed one (see FIG. 6A).

(Example 2)
FIG. 5 is a schematic explanatory view of the greening panel of Example 2 in which the periphery of the bolt fixing portion 25 is reinforced by the partial reinforcing bars 24. As shown in the drawing, in the greening panel 2 of Example 2, partial reinforcing bars 24 having a length of about 100 mm are arranged in a cross-beam shape at least in the vertical groove 21 and the horizontal groove 22 around the bolt fixing portion 25. Thereby, the circumference | surroundings of the bolt fixing | fixed part 25 which fixes the anchor bolt 28 can be reinforced, and the durability and intensity | strength of the greening panel 2 can be improved effectively. That is, it is possible to enhance the panel strength by inserting reinforcing bars only around the bolt fixing portion 25 for fixing the anchor bolt without inserting reinforcing members in all the vertical and horizontal bars of the greening panel.

(Example 3)
FIG. 6 is a plan view of the greening panel of Example 3 having the width of three greening panels shown in Example 1 in the horizontal direction. As shown in the drawing, the greening panel 3 of Example 3 is formed in a rectangular plate shape having a length of about 967 mm, a width of about (967 × 3) mm, and a thickness of 40 mm, and a bolt fixing portion for fixing an anchor bolt or the like. Are provided in the greening panel 3 at predetermined intervals. In the greening panel 3 according to the third embodiment, reinforcing bars can be partially embedded in a cross beam shape only in the vertical and horizontal beam portions around the bolt fixing portion.

  Compared to the greening panel 1 of the first embodiment, the greening panel 3 of the third embodiment can cover a slope that is three times as wide as a single construction, and improves workability and stability during the construction. Can do. Moreover, since the bolt fixing | fixed part to which a load is applied at the time of construction etc. is certainly reinforced by the partial reinforcement which becomes a reinforcement member, it is excellent also in durability and economical efficiency.

  Next, the usage mode is demonstrated about the greening panel of this embodiment. As shown in FIG. 7A, the bolt receiving member 27 (see FIG. 7C) is inserted into the tapered hole 25 b of the bolt fixing portion 25 of the greening panel 1, and the bolt portion 28 is inserted into the bolt receiving member 27. (See FIG. 7 (d)), the table nut 26 (see FIG. 7 (b)) is screwed from the head of the bolt portion 28 to fix the greening panel 1 to a slope 29 such as a mountain surface.

(Evaluation)
Next, the result of having evaluated the greening panel of this invention is demonstrated. FIG. 8 is an explanatory diagram of a test method performed for evaluating characteristics such as strength of the test pieces (1) to (4) shown below.

(Maximum compressive load)
First, in order to measure the compressive strength of the greening panel, the greening panel was cut into a square test piece having a side of 570 mm, and the maximum compressive load applied to the greening panel was measured. As shown in FIG. 8A, the test method was performed by pressing the center of the test piece with a square steel plate 41 having a side of 150 mm and measuring the maximum compressive load until the greening panel was cracked. The results are shown in Table 1.
The test machine was compressed using a UH-500kNA type tester manufactured by Shimadzu Corporation at a test speed of 5 mm / min.

here,
Specimen (1) is made from a conventional greening panel that does not contain reinforcing bars in the vertical and horizontal bars.
The test piece (2) was reinforced by embedding partial reinforcing bars in a cross-beam shape only around the bolt fixing part (greening panel of Example 2),
The test piece (3) is obtained by inserting one reinforcing bar having a thickness of 3 mm into each of the vertical beam and the horizontal beam (panel of Example 1).
The test piece (4) is one in which two reinforcing bars each having a thickness of 3 mm are inserted in each of the vertical beam and the horizontal beam (panel of Example 1).

  As shown in Table 1, the greening panel (test specimens (2) to (4)) according to the present invention has a maximum compression nearly twice that of the conventional type (test specimen (1)) as a comparative example. It can be seen that a load is obtained and that the strength and durability are excellent.

(Deflection)
Moreover, the result of having measured the deflection amount about each test piece (1)-(4) is shown in FIG. FIG. 9 shows an example in which the four corners of a test piece are supported by a support square member 42 of 40 mm (see FIG. 8B), the compression load (unit: N), and the deflection amount (stroke) of the test piece. It is a graph which shows the relationship with (unit: mm).
As can be seen from FIG. 9, the greening panel according to the present invention (test pieces (3) to (4)) has a small amount of deflection because the reinforcing bars are inserted in all the vertical bars and horizontal bars, but the conventional product is It can be seen that the amount of deflection is large and the possibility of destruction is also great. As is clear from the above test results, the greening panel of the present invention has superior rigidity compared to the conventional greening panel (test piece (1)) as a comparative example. The test piece (2) is bent in the same way as a conventional greening panel, but the reinforcing bars are reinforced by embedding partial reinforcing bars in the form of a cross-beam around the bolt fixing part. Etc. were not seen.

  The gist of the present invention is to provide a greening panel with rigidity, durability, and handling properties by providing reinforcing members in a lattice structure (vertical and horizontal rails). It belongs to the scope of rights of the invention. For example, in this embodiment, a general resin such as a polyester resin is used as a synthetic resin for a greening panel. It can also be excellent in environmental compatibility.

  As described above, the greening panel of the present invention has reinforcing members such as reinforcing bars and glass fiber bundles embedded at predetermined intervals inside the vertical bars and / or horizontal bars of the lattice structure. Predetermined rigidity, durability, and handling properties can be imparted to the greening panel, and a greening panel having excellent construction stability can be obtained.

1 is a schematic perspective view of a greening panel according to Example 1. FIG. FIG. It is sectional drawing of the vertical beam (a) and the horizontal beam (b) which show the example which embed | buried two types of reinforcement members in the greening panel. It is explanatory drawing which shows an example in the case of manufacturing a greening panel using a manufacturing formwork (c). It is a schematic explanatory drawing of the greening panel of Example 2 which reinforced the circumference | surroundings of the bolt fixing | fixed part from the partial rebar. It is a top view of the greening panel of Example 3 which has the width for 3 sheets of the greening panel shown in Example 1 in the horizontal direction. It is explanatory drawing of the usage aspect about the greening panel of this embodiment. It is explanatory drawing of the test method performed in order to evaluate characteristics, such as the intensity | strength, with respect to test piece (1)-(4). It is a graph which shows the result of having measured the deflection amount about test piece (1)-(4).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Greening panel of Example 1 2 Greening panel of Example 2 3 Greening panel of Example 3 11 Vertical beam 12 Horizontal beam 13 Reinforcing bar (reinforcing member)
14 Glass fiber bundle (reinforcing member)
20 Manufacturing Form 21 Vertical Groove 22 Horizontal Groove 23 Baffle Plate 24 Partial Reinforcement (Reinforcement Member)
25 Bolt fixing portion 26 Table nut 27 Bolt receiving member 28 Bolt portion 29 Slope 41 Steel plate 42 Supporting square member 43 Steel plate

Claims (4)

Equipped with a grid-like structure that crosses multiple vertical bars and horizontal bars,
A greening panel laid on a slope having a grid surrounded by the vertical rail and the horizontal rail,
Reinforcing members are embedded at predetermined intervals from each other over the entire longitudinal length of the vertical beam and / or the horizontal beam of the lattice structure ,
In the central part of the greening panel,
A part of the vertical and horizontal bars of the lattice structure and a central missing part provided without the reinforcing member,
A bolt fixing part (25) provided with an inverted conical tapered hole (25b) in the center is formed in the central missing part,
In the tapered hole (25b),
A greening panel comprising a detachable bolt receiving member (27) for fixing an anchor bolt inserted into the soil. The reinforcing member is
The glass fiber bundle (14) made of long glass fibers is embedded in the vertical beam (11) and the horizontal beam (12) so as to be arranged in parallel above and below the reinforcing bar (13). The greening panel according to claim 1 . The greening panel according to claim 1 or 2 , wherein the reinforcing member is made of a metal wire, a metal bar, glass fiber or synthetic resin fiber, and a combination thereof. Equipped with a grid-like structure that crosses multiple vertical bars and horizontal bars,
A greening panel laid on a slope having a grid surrounded by the vertical rail and the horizontal rail,
In the central part of the greening panel,
A center missing portion is provided by lacking a part of the vertical and horizontal bars of the lattice structure,
A bolt fixing portion (25) having an inverted conical tapered hole (25b) in the center is formed in the central missing portion, and
A reinforcing member is embedded in the shape of a cross beam inside the horizontal beam and / or the vertical beam around the bolt fixing portion for fixing the anchor bolt (28), and the periphery of the bolt fixing portion (25) is reinforced.
In the tapered hole (25b),
A greening panel comprising a detachable bolt receiving member (27) for fixing an anchor bolt inserted into the soil.

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