Fences and fence construction methods

Abstract

To provide a fence using a foamed resin panel which can be easily constructed in a short time without using reinforcing bars, and a construction method for the fence.SOLUTION: The fence and the fence construction method use lightweight foamed resin panels and posts made of synthetic resin as main components. This makes it easier to transport and construct the materials, and reduces the burden on workers. In addition, since the components are lightweight, the fence can be constructed in a shorter time than before. Furthermore, the foamed resin panels are fixed to the posts by small gravel filled in post holes. This eliminates the need for the hardening time that has been previously required with mortar, and a construction period can be shortened accordingly. Furthermore, the small gravel is only compacted and is not fixed in place. Therefore, when the fence collapses or is removed, the small gravel flows out of the post holes, reducing the weight of the fence itself. This reduces the risk of collapse. Furthermore, removal work can be performed easily.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a fence using foam resin panels and a method for constructing such a fence. [Background technology]

[0002] In recent years, there have been reports of concrete walls collapsing during earthquakes, causing casualties and traffic disruptions. For this reason, walls made of foamed resin (styrofoam), which are much lighter than concrete walls, have been proposed, such as the one described in Patent Document 1 below. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-142010 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional foam resin fence described in [Patent Document 1], post holes are formed vertically in the foam resin panels that form the main body of the fence, and reinforcing bars installed in the foundation are inserted through these post holes to form the fence. Mortar, concrete, or the like is then filled into the post holes with the reinforcing bars inserted and allowed to harden, thereby securing the foam resin panels to form the fence. However, the reinforcing bars and the mortar used to secure them are heavy, requiring effort to transport the materials and increasing the weight of the fence itself, thereby reducing the benefits of a foam resin fence. Furthermore, the mortar is prone to cracking due to vibration and impact, and the reinforcing bars rust and deteriorate when exposed to moisture.

[0005] The present invention has been made in consideration of the above circumstances, and aims to provide a fence using foam resin panels that can be easily constructed in a short time without using reinforcing bars, and a construction method for this fence. [Means for solving the problem]

[0006] The present invention provides (1) A foam resin panel 30a, 30b having a support hole 32 penetrating in the vertical direction, a synthetic resin support 40 inserted into the support hole 32 and fixed at one end to the foundation 1, small gravel 42 filled in the support hole 32 to fix the foam resin panels 30a, 30b and the support 40, and a mortar layer 60 formed on the surface of the foam resin panels 30a, 30b. death, The support 40 is made of aramid fibers braided into a rod shape and hardened with epoxy resin adhesive. The above problem is solved by providing a fence 80 characterized by the above. (2) The above problem is solved by providing the fence 80 described in (1) above, which is characterized in that the small gravel 42 is made of rubble. (3) The above problem is solved by providing the fence 80 described in (1) above, characterized in that the foam resin panels 30a, 30b are provided on their sides with tongue-and-groove joints 34a, 34a' or grooved joints 34b, 34b', and are connected horizontally by the tongue-and-groove joints 34a, 34a' or grooved joints 34b, 34b'. (4) A method for constructing a fence using foam resin panels 30a and 30b, The foam resin panels 30a and 30b have support holes 32 that penetrate vertically. Basic 1 Aramid fibers were braided into a rod shape and hardened with epoxy resin adhesive. The above problem is solved by providing a fence construction method comprising a post fixing step S104 of erecting posts 40, a panel installation step S106 of passing the posts 40 through the post holes 32 of the foam resin panels 30a, 30b and connecting the foam resin panels 30a, 30b horizontally to form a fence, a panel fixing step S108 of filling the post holes 32 with small gravel 42 and compacting it to fix the foam resin panels 30a, 30b to the posts 40, and a mortar layer forming step S130 of forming a mortar layer 60 on the surface of the foam resin panels 30a, 30b. (5) A method for constructing a fence using foam resin panels 30a and 30b, The foam resin panels 30a and 30b have support holes 32 passing through in the vertical direction and have half-joint joints 34b and 34b' on the sides. A base mortar step S202 of forming a base mortar layer 50 in which a mesh member 52 is laid down on the surface of the foam resin panels 30a and 30b, and a support hole 32 of the foam resin panels 30a and 30b Aramid fibers were braided into a rod shape and hardened with epoxy resin adhesive. The above problem is solved by providing a fence construction method comprising a panel installation process S208 in which the posts 40 are inserted and the lower ends of the posts 40 are fixed to the foundation 1, and the half-joint joints 34b, 34b' are connected horizontally to form the foam resin panels 30a, 30b into a fence shape; a panel fixing process S108 in which small gravel 42 is filled into the post holes 32 and compacted to fix the foam resin panels 30a, 30b to the posts 40; and a finishing mortar process S222 in which a finishing mortar layer 54 is formed on the base mortar layer 50. [Effects of the Invention]

[0007] The fence and fence construction method of the present invention use lightweight foam resin panels and synthetic resin posts as their main components. This simplifies the transportation and construction of materials, reducing the burden on workers. Furthermore, because the components are lightweight, the fence can be constructed in a shorter time than conventional methods. Furthermore, the foam resin panels are secured to the posts by small gravel filled into the post holes. This eliminates the need for the hardening time required with conventional mortar, thereby shortening the construction period. Furthermore, the small gravel is only compacted, not fixed. Therefore, when the fence collapses or is removed, the small gravel flows out of the post holes, reducing the weight of the fence itself. This reduces the risk of collapse. Furthermore, removal work can be performed easily. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a foam resin panel of a fence according to the present invention. [Figure 2] 1 is a schematic cross-sectional view of a fence according to the present invention. [Figure 3] FIG. 1 is a diagram illustrating a first construction method for a fence according to the present invention. [Figure 4] FIG. 1 is a diagram illustrating a first construction method for a fence according to the present invention. [Figure 5] FIG. 1 is a diagram illustrating a first construction method for a fence according to the present invention. [Figure 6] FIG. 1 is a diagram illustrating a first construction method for a fence according to the present invention. [Figure 7] FIG. 10 is a diagram illustrating a second construction method for a fence according to the present invention. [Figure 8] FIG. 10 is a diagram illustrating a second construction method for a fence according to the present invention. [Figure 9] FIG. 10 is a diagram illustrating a second construction method for a fence according to the present invention. [Figure 10] FIG. 10 is a diagram illustrating a second construction method for a fence according to the present invention. [Figure 11] 1 is a process flowchart of a fence construction method according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of a fence 80 and a fence construction method according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of foamed resin panels 30a, 30b, which are the main components of the fence 80 according to the present invention. The foamed resin panels 30a, 30b used in the present invention are formed by foaming synthetic resin into a plate shape, and it is particularly preferable to use expanded polystyrene (EPS: bead-process expanded polystyrene). However, in some cases, well-known expanded resins such as expanded polyethylene and expanded polypropylene may also be used. When using expanded polystyrene for the foamed resin panels 30a, 30b, foamed polystyrene with an expansion ratio of approximately 50 to 60 times, which is the same as that used for general containers and cushioning materials, is preferably used, but foamed polystyrene with a high density and high strength of approximately 30 to 50 times is preferable. There are no particular limitations on the dimensions of the foamed resin panels 30a, 30b. However, for example, when constructing a fence 80 with a height of 2 m, it is recommended to use panels with a width of 1 m. m , high difference It is preferable to use 2m foam resin panels 30a, 30b arranged horizontally.Furthermore, the fence 80 may be constructed by stacking a plurality of low foam resin panels 30a, 30b.

[0010] Each foam resin panel 30a, 30b is provided with a support hole 32 extending vertically (heightwise) from the top to the bottom. The diameter of the support hole 32 is larger than the diameter of the support 40 (described below) so that when the support 40 is inserted, there is a sufficient gap between the inner surface of the support hole 32 and the support 40 to accommodate small gravel 42. While this requirement is met, the diameter of the support hole 32 is preferably approximately one-half to one-third of the thickness of the foam resin panels 30a, 30b. For example, if the thickness of the foam resin panels 30a, 30b is 12 cm, the diameter of the support hole 32 is preferably approximately 3 cm to 6 cm. Most preferably, two support holes 32 are formed on each side of the foam resin panels 30a, 30b. However, if the foam resin panels 30a, 30b are long in the horizontal direction, the number of support holes 32 may be increased to three, four, or five. Furthermore, the foam resin panels 30a, 30b may have an arc-shaped, wavy, or uneven upper surface to add decorative appeal to the exterior. Decorative through-holes may also be formed in the wall surfaces of the foam resin panels 30a, 30b. However, if through-holes are formed in the wall surfaces, they should be designed so as not to intersect with the support holes 32.

[0011] Furthermore, the side surfaces of the foam resin panels 30a, 30b are preferably formed with joints. It is particularly preferable to form tongue-and-groove joints or half-edge joints, which are easy to form. Here, FIG. 1(a) shows a first foam resin panel 30a with tongue-and-groove joints 34a, 34a' on its side surfaces, and FIG. 1(b) shows a second foam resin panel 30b with half-edge joints 34b, 34b' on its side surfaces. The tongue-and-groove joints 34a, 34a' shown in FIG. 1(a) have a protrusion (reference numeral 34a) on one side surface and a recess (reference numeral 34a') on the other side surface. The protrusions (34a) of adjacent foam resin panels 30a are inserted into the recesses (34a') to connect the foam resin panels 30a in the horizontal direction. 1(b), notches (34b, 34b' in the drawing) are formed on both sides of the foam resin panel 30b, and adjacent foam resin panels 30b are connected by combining the notch joints 34b, 34b', thereby linking the foam resin panels 30b in the horizontal direction. The support holes 32 and joints may be formed by integral molding when the foam resin panels 30a, 30b are produced, or by machining the molded (plate-shaped) foam resin panels, such as by drilling or cutting.

[0012] Next, the configuration of fence 80 according to the present invention will be described using the schematic cross-sectional view of post hole 32 in Figure 2. First, fence 80 according to the present invention comprises the foam resin panels 30a, 30b described above, synthetic resin posts 40 inserted into post holes 32 and fixed at one end to foundation 1, small gravel 42 filled into post holes 32 to secure foam resin panels 30a, 30b and posts 40, and mortar layer 60 formed on the surfaces of foam resin panels 30a, 30b.

[0013] The support 40 used in the present invention is made of synthetic resin, Match Aramid fiber was used as the composite fiber, which was bound with a braided cord to form a rod, and then cured with an epoxy resin adhesive as a synthetic resin adhesive. do.Such posts 40 have a higher tensile strength than conventional rebar and do not deteriorate due to rust. Furthermore, synthetic resin posts 40 are much lighter than conventional rebar, reducing the burden on workers when transporting materials and during construction. Furthermore, the total weight of the fence 80 is reduced, improving safety in the event of collapse and reducing the burden of removal.

[0014] The small gravel 42 used in the present invention is filled and compacted between the support posts 40 and the support hole 32 to secure the foam resin panels 30a, 30b to the support posts 40. There are no particular restrictions on the material, and any material can be used, such as crushed natural stone, recycled glass, or ceramics. Regarding size, it is preferable to use gravel with an outer diameter of approximately 2 to 3 cm or less that can fit between the support posts 40 and the support hole 32, and it is particularly preferable to use so-called birch stones with an outer diameter of 1 cm or less. In addition to being suitable for the present invention in terms of size, this birch stone is extremely inexpensive compared to stones made of other materials, which allows for a reduction in material costs associated with the present invention.

[0015] The mortar layer 60 of the present invention preferably comprises a base mortar layer 50 applied to the surface of the foam resin panels 30a, 30b and a finish mortar layer 54 applied to the base mortar layer 50. The base mortar layer 50 and the finish mortar layer 54 are preferably made of elastic mortar. Elastic mortar is a mortar component containing approximately 0.1 wt% to 10 wt% of a resin component, such as a re-emulsifiable powder resin, added to the mortar components. This provides a degree of flexibility to the hardened mortar and prevents cracking due to bending. Furthermore, the elastic mortar used in the present invention may contain short fibers in addition to the resin component. The elastic mortar used in the base mortar layer 50 and the finish mortar layer 54 may be the same, or the formulations may be varied to suit their respective applications.

[0016] Furthermore, it is preferable to embed a mesh member 52 within the base mortar layer 50. A well-known mesh member that is embedded in a mortar wall or the like to increase its strength can be used as this mesh member 52. In particular, it is preferable to use a lattice-shaped mesh of several millimeters square, mainly made of glass fiber that has been treated to be alkali-resistant.

[0017] Next, we will explain a method for constructing a fence 80 according to the present invention. Figures 3 to 6 explain a first construction method for a fence 80 using a first foam resin panel 30a, and Figure 11(a) is a process flowchart. Note that in the first construction method, there are no particular limitations on the presence or type of joints in the foam resin panel, but the explanation will be given here using as an example a foam resin panel 30a having real joints 34a, 34a' on its sides.

[0018] In the first fence construction method according to the present invention, as shown in FIG. 3(a), first, posts 40 are erected and fixed to a foundation 1 constructed by a known method (post fixing step S104). The posts 40 may be erected and fixed at the same time as the foundation 1 is poured, or holes may be drilled in the foundation 1 after hardening, and the posts 40 may be inserted and then fixed with mortar or a known adhesive. The length of the above-ground portion of the posts 40 is set to be approximately equal to or slightly shorter than the height dimension of the foam resin panel 30a. The positions at which the posts 40 are erected correspond to the post holes 32 in the foam resin panel 30a.

[0019] 3(b), the support holes 32 of the foam resin panel 30a are passed through the erected support 40, and the main tongue and groove joints 34a, 34a' on the sides are connected to the main tongue and groove joints 34a, 34a' of the adjacent foam resin panel 30a. As a result, the foam resin panels 30a are arranged horizontally to form a fence-like shape (panel installation step S106 of the first construction method).

[0020] Next, while applying appropriate vibrations using a well-known industrial vibration device, small gravel 42 is filled into the gap between the support 40 and the support hole 32. As a result, the small gravel 42 in the support hole 32 is compacted and filled, and as shown in Figure 4, the foam resin panel 30a and the support 40 are fixed via the small gravel 42 (panel fixing step S108).

[0021] Next, a mortar layer 60 is formed on the surface of the foam resin panel 30a (mortar layer formation step S130). The formation of this mortar layer 60 is preferably performed as follows. First, as shown in FIG. 5(a), elastic mortar that will become the base mortar layer 50 is applied to the surface of the foam resin panel 30a. Next, as shown in FIG. 5(b), the surface of this elastic mortar layer is covered with a mesh member 52. Next, elastic mortar is applied again on top of this mesh member 52, and the mesh member 52 is laid down. This forms the base mortar layer 50 with the mesh member 52 laid down, as shown in FIG. 6(a) (base mortar step S120 of the first construction method).

[0022] Next, finishing mortar is applied to the surface of the base mortar layer 50 to form the finishing mortar layer 54 (finishing mortar step S122 of the first construction method). The finishing mortar layer 54 may also be formed using sprayed mortar. As a result, as shown in FIG. 6(b), a mortar layer 60 consisting of the base mortar layer 50 and the finishing mortar layer 54 is formed, completing the fence 80 according to the present invention. Note that tiles, decorative blocks, natural stone, bricks, plaster, and other well-known wall materials may be bonded, processed, coated, patterned, painted, etc., as appropriate, on the finishing mortar layer 54.

[0023] Next, a second construction method for a fence 80 according to the present invention will be described. Figures 7 to 10 are diagrams illustrating the second construction method, and Figure 11(b) is a process flowchart. In the second construction method, a base mortar layer 50 is formed in advance on the front and back surfaces of the foamed resin panel, which is then installed on-site to construct the fence 80. This increases the weight of the foamed resin panel by the amount of the base mortar layer 50. Therefore, in the second construction method, it is preferable to use foamed resin panels 30b with half-joint joints 34b, 34b' on their sides, which are easier to connect than regular joints 34a, 34a'.

[0024] First, in the second construction method, as shown in FIG. 7(a), elastic mortar is applied to the front and back surfaces of the foam resin panel 30b to form the base mortar layer 50. At this time, elastic mortar is not applied to the half-joint joints 34b, 34b' or the top and bottom surfaces where the support holes 32 are open. Next, as shown in FIG. 7(b), the elastic mortar layers on the front and back surfaces are covered with mesh members 52. Next, elastic mortar is applied again on top of the mesh members 52, and the mesh members 52 are then laid down. This forms the base mortar layer 50 with the mesh members 52 laid down, as shown in FIG. 7(c) (base mortar step S202 of the second construction method). This base mortar step S202 can be performed in a factory rather than on-site, making it unaffected by weather. Furthermore, the work can be performed with the foam resin panel 30b laid on its side, significantly reducing the burden on workers.

[0025] Next, the foam resin panel 30b with the base mortar layer 50 formed thereon is transported to the site, and the posts 40 are inserted through the post holes 32 of the foam resin panel 30b, with the lower ends of the posts 40 fixed to the foundation 1. Simultaneously, the half-joint joints 34b, 34b' of the foam resin panel 30b are connected to the half-joint joints 34b, 34b' of adjacent foam resin panels 30b to form a fence-like structure (panel installation step S208 of the second construction method). While the order of the work in the panel installation step S208 is not particularly limited, in the second construction method, the foam resin panel 30b already has the base mortar layer 50 formed thereon, making the panel itself heavier than in the first construction method. Therefore, it is preferable to minimize the workload by not lifting the foam resin panel 30b too high, for example, by following the steps described below.

[0026] First, holes are drilled in the foundation 1 to install the posts 40. Next, the foam resin panel 30b, on which the base mortar layer 50 has been formed, is placed on the foundation 1, and the posts 40 are passed through the post holes 32 as shown in FIG. 7(d). Then, while shifting the foam resin panel 30b or lifting it up to a level where work is possible, the lower ends of the posts 40 are inserted into the post fixing holes provided in the foundation 1 and fixed with mortar or the like. Next, the foam resin panel 30b is slid, for example, to connect the half-joint joints 34b, 34b' of the foam resin panel 30b to the half-joint joints 34b, 34b' of adjacent foam resin panels 30b. These operations are then repeated to arrange the foam resin panels 30b in a fence-like configuration.

[0027] Next, as in the first construction method, small gravel 42 is filled into the gap between the support 40 and the support hole 32 while applying appropriate vibrations using a well-known industrial vibration device. As a result, the small gravel 42 in the support hole 32 is compacted and filled, and as shown in Figure 8, the foam resin panel 30a and the support 40 are fixed together via the small gravel 42 (panel fixing step S108).

[0028] Next, a finishing mortar layer 54 is formed on the base mortar layer 50 of the foam resin panel 30b (finishing mortar step S222 of the second construction method). The formation of this finishing mortar layer 54 is preferably performed as follows. First, as shown in FIG. 9(a), elastic mortar that will become the finishing mortar layer 54 is applied to the base mortar layer 50 and the upper surface of the foam resin panel 30b. Next, as shown in FIG. 9(b), a mesh member 52 is placed over the upper surface of the foam resin panel 30b and the connection portion between the foam resin panel 30b and the foam resin panel 30b. Next, with this mesh member 52 in place, elastic mortar is again applied to the entire foam resin panel 30b. This forms the finishing mortar layer 54 as shown in FIG. 10. This forms a mortar layer 60 consisting of the base mortar layer 50 and the finishing mortar layer 54, completing the fence 80 according to the present invention. As with the first construction method, tiles, decorative blocks, natural stone, bricks, plaster, and other well-known wall materials may be adhered, processed, coated, patterned, painted, etc. onto the finishing mortar layer 54 as appropriate.

[0029] As described above, the fence 80 and fence construction method according to the present invention use lightweight foam resin panels 30a, 30b and synthetic resin supports 40 as their main components. This makes it easier to transport and construct materials, reducing the burden on workers. Furthermore, because the components are lightweight, the fence can be constructed in less time than before. Furthermore, even people with weaker strength, such as women or the elderly, can carry out the work.

[0030] Furthermore, the foam resin panels 30a, 30b are fixed to the posts 40 using small gravel 42 filled in the post holes 32. This eliminates the need for the hardening time required with conventional mortar, thereby shortening the construction period. Furthermore, the small gravel 42 is only compacted and is not fixed with mortar or adhesives. Therefore, if the fence 80 according to the present invention were to collapse due to a disaster or other reason, the small gravel 42 would flow out of the post holes 32, reducing the weight of the fence 80 itself. This reduces the risk of collapse. Furthermore, removal is easier than with conventional fences because the small gravel 42 flows out, reducing the weight.

[0031] Furthermore, in particular, with the second construction method according to the present invention, the process up to the formation of the base mortar layer 50 can be carried out in a factory, etc. Therefore, the construction period on site can be significantly shortened.

[0032] The configuration, design, shape, dimensions, and other aspects of the fence 80, foam resin panels 30a, 30b, etc. shown in this example are merely examples and are not limited to the above examples, and the present invention can be modified and implemented without departing from the scope of the present invention. Also, the fence construction method according to the present invention is merely an example, and the work procedures and order of steps are not limited to the above examples, and the present invention can be modified and implemented without departing from the scope of the present invention, such as by inserting necessary steps. [Explanation of symbols]

[0033] 1 Basics 30a, 30b Foam resin panels 32 Post hole 34a, 34a' Honji-gite 34b, 34b' Half-jointed joint 40 pillars 42 small gravel 50 Base mortar layer 52 Mesh material 54 Finishing mortar layer 60 Mortar layer 80 Fence S104 Pillar fixing process S106, S208 Panel installation process S108 Panel fixing process S120, S202 Base mortar process S122, S222 Finishing mortar process S130 Mortar layer formation process

Claims

1. a foam resin panel having a support hole passing through in the vertical direction; A support made of synthetic resin, inserted into the support hole and having one end fixed to the foundation; Small gravel filled in the support hole to fix the foam resin panel and the support; a mortar layer formed on the surface of the foam resin panel, The fence is characterized in that the posts are made of aramid fibers bound with braided cord to form rods, which are then hardened with epoxy resin adhesive.

2. 2. A fence according to claim 1, characterized in that the small gravel used is pebbles.

3. 2. A fence according to claim 1, characterized in that the foam resin panels have side joints or half joints on the sides thereof, and are connected horizontally by said side joints or half joints.

4. A construction method for a fence using foam resin panels, The foam resin panel has a support hole extending vertically therethrough, a post fixing process in which aramid fibers are braided to form rods on the foundation and then the rods are hardened with epoxy resin adhesive; a panel installation process in which the support posts are passed through the support holes of the foam resin panels and the foam resin panels are connected in the horizontal direction to form a fence-like structure; a panel fixing process of filling the support hole with small gravel and compacting it to fix the foam resin panel to the support; a mortar layer forming step of forming a mortar layer on the surface of the foam resin panel.

5. A construction method for a fence using foam resin panels, The foam resin panel has a support hole penetrating in the vertical direction and has a half-joint on the side, a base mortar step of forming a base mortar layer on the surface of the foam resin panel, with a mesh member embedded therein; a panel installation process in which aramid fibers are braided to form rods, and posts cured with epoxy resin adhesive are passed through the post holes of the foam resin panel, the lower ends of the posts are fixed to the foundation, and the half-joint joints are connected laterally to form the foam resin panel into a fence-like shape; a panel fixing process of filling the support hole with small gravel and compacting it to fix the foam resin panel to the support; a finishing mortar step of forming a finishing mortar layer on the base mortar layer.

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