Pole structure and method for installing pole structure

Abstract

To provide a pole structure and a method for installing the pole structure, which suppress ground subsidence and, even with a foundation portion having a small installation area, make a pole member less likely to topple.SOLUTION: The pole structure of the present invention comprises: a cylindrical foundation portion buried in the ground to a depth from 1.0 m to 4.5 m inclusive and having a diameter from 0.4 m to 1.5 m inclusive; and a pole member arranged at a center of the foundation portion and having a length from 4.0 m to 20.0 m inclusive from the ground surface. The foundation portion includes a concrete member and a concrete reinforcing member. The concrete reinforcing member is a reinforcing-bar member in which rod-shaped members are assembled in a lattice pattern. The concrete reinforcing member is disposed inside the concrete member, and one end portion side of the pole member is fixed by the concrete member. An outer peripheral surface of the foundation portion is formed to have irregularities in the radial direction, and the irregularities are in contact with the surrounding soil.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a pole workpiece and a method for installing the pole workpiece. [Background technology]

[0002] A method known as the footing method is used to erect poles (supports).

[0003] For example, Patent Document 1 presents a cross-sectional view of the base part of a pole called a footing (Figure 1, symbol 2 in Patent Document 1), and as shown in Figure 5 in Patent Document 1, construction is completed by digging a hole in the ground, installing the base part, and then installing a support pole in the base part and backfilling it. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-240010 Summary of the Invention [Problem to be solved by the invention]

[0005] In the footing method, in order to prevent the pole from tipping over and the ground from subsiding due to the weight of the pole and the foundation, it is necessary to use a large foundation so that the contact area between the bottom of the excavated hole and the bottom of the foundation is large. Therefore, there is a problem that the installation area becomes large. In addition, the construction process is time-consuming, as it requires digging a hole large enough to fit the foundation and then backfilling it.

[0006] Therefore, the object of the present invention is to provide a pole structure and a method for installing a pole structure that includes a pole member that suppresses ground subsidence and is less likely to tip over even if the base has a small installation area. [Means for solving the problem]

[0007] After thorough research into the above-mentioned problems, the inventor discovered that the outer periphery of the cylindrical base is uneven in the diameter direction, and that these unevennesses come into contact with the soil on the ground, making it difficult for the pole structure to tip over, and that the installation area of ​​the base can be reduced, thereby preventing ground subsidence due to its own weight, and thus completed the present invention.

[0008] The pole structure of the present invention for solving the above problems comprises: a cylindrical base portion buried in the ground to a depth of 1.0 m to 4.5 m and a diameter of 0.4 m to 1.5 m; A pole member having a length of 4.0 m to 20.0 m from the ground surface, which is arranged in the center of the base, The base portion includes a concrete member and a concrete reinforcing member, The concrete reinforcement member is a reinforcing bar member in which rod-shaped members are arranged in a lattice pattern. The concrete reinforcement member is disposed inside the concrete member, One end of the pole member is fixed with a concrete member. The outer periphery of the base is uneven in the diameter direction, and the unevenness comes into contact with the soil on the ground.

[0009] According to the pole structure of the present invention, the outer periphery of the base is uneven in the diameter direction, and since these unevennesses come into contact with the soil on the ground, friction is generated between the base and the ground, making it less likely to tip over and allowing the installation area of ​​the base to be reduced. Furthermore, since the base portion is equipped with concrete members and concrete reinforcing members, the strength of the base portion can be increased, which also has the effect of firmly holding the pole members.

[0010] Furthermore, the pole structure of the present invention comprises: a cylindrical base portion buried in the ground to a depth of 1.0 m to 4.5 m and a diameter of 0.4 m to 1.5 m; A flange portion that is located above the center of the depth direction of the base portion and that extends horizontally beyond the diameter of the base portion; A pole member having a length of 4.0 m to 20 m from the surface of the ground, which is arranged in the center of the base, The base portion includes a concrete member and a concrete reinforcing member, The concrete reinforcement member is a reinforcing bar member in which rod-shaped members are arranged in a lattice pattern. The concrete reinforcement member is disposed inside the concrete member, One end of the pole member is fixed to a concrete member.

[0011] According to the pole structure of the present invention, the outer periphery of the base is uneven in the diameter direction, and since these unevennesses come into contact with the soil on the ground, friction is generated between the base and the ground, making it less likely to tip over and allowing the installation area of ​​the base to be reduced. Furthermore, since the flange is installed on top of the base, it provides greater support for the pole, making it less likely to tip over. Furthermore, since the base portion is equipped with concrete members and concrete reinforcing members, the strength of the base portion can be increased, which also has the effect of firmly holding the pole members.

[0012] Furthermore, the pole structure of the present invention is characterized in that the n value of the ground on which the bottom surface of the base portion rests is 2.5 or more.

[0013] According to the pole structure of the present invention, by installing it on a certain level of ground, it has the effect of further suppressing ground subsidence.

[0014] Furthermore, the pole structure of the present invention is characterized in that the n value of the ground on which the bottom surface of the collar portion rests is 2.5 or more.

[0015] According to the pole structure of the present invention, by installing it on a certain level of ground, it has the effect of further suppressing ground subsidence.

[0016] Furthermore, according to the pole workpiece of the present invention, the pole member includes a rod-shaped self-supporting auxiliary member, The self-supporting auxiliary members are arranged partly or entirely inside the concrete member of the base portion, crossing each other horizontally and vertically; the other end side of the self-supporting auxiliary member is in a state of passing through the lattice holes of the concrete reinforcement member and sticking into the ground, in a state of passing through the lattice holes of the concrete reinforcement member and contacting the side of the hole, or in a state of contacting the concrete reinforcement member; One end of the self-supporting support member is fixed to the pole member.

[0017] According to the pole structure of the present invention, the self-supporting support member makes the pole structure less likely to tip over.

[0018] Furthermore, according to the pole workpiece of the present invention, the inside of the pole member is hollow, A through hole is provided in the pole member at a position above the ground surface, spanning from the outside to the hollow space, The cavity below the pole member is filled with concrete, The through-hole is characterized by being hidden by a concrete root wrapping member.

[0019] According to the pole structure of the present invention, the inside of the pole member is hollow, which reduces the pole structure's own weight, and the hollow part on the ground side is filled with concrete material, making the pole structure less likely to tip over.

[0020] Furthermore, according to the signboard work of the present invention, there is provided a pole work having a base portion and a pole member; A sign is provided on the other end of the pole member.

[0021] According to the sign structure of the present invention, the outer periphery of the base is uneven in the diameter direction, and since these unevennesses come into contact with the soil on the ground, friction occurs between the base and the ground, making it less likely to tip over, and the installation area of ​​the base can be made small, resulting in a sign structure. Furthermore, since the base portion is provided with concrete members and concrete reinforcing members, the strength of the base portion can be increased, and the sign structure can be made to firmly hold the pole members.

[0022] Furthermore, the pole structure installation method of the present invention includes a hole digging step of digging a cylindrical hole in the ground to a depth of 1.0 m to 4.5 m and a diameter of 0.4 m to 1.5 m; a concrete reinforcement member installation process for installing a concrete reinforcement member, which is a reinforcing bar member formed by arranging rod-shaped members in a lattice pattern, inside the hole; a pole member placement process for placing one end of the pole member inside the hole so that the length is 4.0 m or more and 20 m or less from the surface of the ground; and a concrete filling step of filling the space between the uneven surface of the side wall of the hole and the outer surface of the pole member with concrete.

[0023] According to the pole structure installation method of the present invention, the outer periphery of the base is uneven in the diameter direction, and since these unevennesses come into contact with the soil on the ground, friction is generated between the base and the ground, making it less likely to tip over, and there is an effect that the installation area of ​​the base can be made small, making it possible to install a pole structure. Furthermore, since the base portion is equipped with concrete members and concrete reinforcing members, the strength of the base portion can be increased, making it possible to provide a method for installing a pole structure that firmly holds the pole members.

[0024] Furthermore, the pole workpiece installation method of the present invention includes a flange groove forming step of forming a groove in the ground to become a flange; a flange reinforcing member placement process for placing a flange reinforcing member, which is a reinforcing bar member formed by assembling rod-shaped members in a lattice pattern, inside the flange groove; and a flange groove filling step of filling the flange groove with a concrete material.

[0025] According to the pole structure installation method of the present invention, since the flange portion is installed on top of the base portion, the effect of supporting the pole is increased, and it is possible to make the pole structure installation method more difficult to tip over.

[0026] Furthermore, according to the pole structure installation method of the present invention, between the pole member arrangement step and the concrete filling step, The other end of the self-supporting auxiliary member is in a state where it passes through the lattice holes of the concrete reinforcement member and is stuck into the ground, or in a state where it passes through the lattice holes of the concrete reinforcement member and is in contact with the side of the hole, or in a state where it is in contact with the concrete reinforcement member, and a self-supporting support member installation step in which one end of the self-supporting support member is fixed to the pole member.

[0027] According to the pole structure installation method of the present invention, the installation of the self-supporting support member makes it possible to install a pole structure that is less likely to tip over.

[0028] Furthermore, according to the pole workpiece installation method of the present invention, The inside of the pole member is hollow, a through-hole creating step of creating a through-hole at a position above the ground surface of the pole member, extending from the outside to the internal space of the cavity; a step of filling the internal space of the pole member with concrete through the through hole created in the through hole creating step; The method is characterized by comprising a root wrapping member making step of making a concrete root wrapping member at a position higher than the ground surface so as to hide the through hole.

[0029] According to the pole structure installation method of the present invention, the inside of the pole member is hollow, which reduces the pole structure's own weight, and the hollow part on the ground side is filled with concrete material, making the pole structure less likely to tip over. [Effects of the Invention]

[0030] According to the present invention, a pole structure and a method for installing a pole structure can be provided that include a pole member that suppresses ground subsidence and is less likely to tip over even if the base has a small installation area. [Brief explanation of the drawings]

[0031] [Figure 1] 1 is a schematic cross-sectional view showing a pole workpiece according to a first embodiment of the present invention; [Figure 2] 1 is a cross-sectional schematic view showing a method of installing a pole workpiece according to a first embodiment of the present invention. FIG. [Figure 3] 1 is a cross-sectional schematic view showing a method of installing a pole workpiece according to a first embodiment of the present invention. FIG. [Figure 4] 1 is a cross-sectional schematic view showing a method of installing a pole workpiece according to a first embodiment of the present invention. FIG. [Figure 5] 1 is a cross-sectional schematic view showing a method of installing a pole workpiece according to a first embodiment of the present invention. FIG. [Figure 6] 1 is a cross-sectional schematic view showing a method of installing a pole workpiece according to a first embodiment of the present invention. FIG. [Figure 7] 1 is a cross-sectional schematic view showing a method of installing a pole workpiece according to a first embodiment of the present invention. FIG. [Figure 8] 1 is a cross-sectional schematic view showing a method of installing a pole workpiece according to a first embodiment of the present invention. FIG. [Figure 9] 1 is a cross-sectional schematic view showing a method of installing a pole workpiece according to a first embodiment of the present invention. FIG. [Figure 10] FIG. 2 is a schematic cross-sectional view showing a modified example of the pole workpiece of the first embodiment of the present invention. [Figure 11] 1 is a schematic cross-sectional view showing a pole workpiece according to a first embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0032] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, with reference to the drawings, embodiments of a pole structure including a base and a pole member according to the present invention and a method for installing the pole structure will be described in detail. It should be noted that the pole structure and the pole structure installation method described in the embodiments are merely examples provided to explain the pole structure and the pole structure installation method according to the present invention, and are not limited thereto.

[0033] In addition, when a signboard is attached to the other end of the pole member of the pole work, it becomes a signboard work, and the pole work and the pole work installation method of the present invention can be particularly preferably applied to signboard works. It is particularly preferable that the signboard be installed at the tip of the pole member above half its height (on the side opposite the ground).

[0034] [First embodiment] [Pole structure] Referring to FIG. 1, a pole workpiece 101 in a first embodiment will be described. In this embodiment, the pole workpiece 101 comprises a base portion 1, a pole member 2, and a concrete encasing member 3.

[0035] <Base> The base 1 serves to support the pole member 2 so that it does not fall over. The base 1 includes a concrete member 11, a concrete reinforcing member 12, a self-supporting support member 13, and a flange 14. The base 1 has a cylindrical shape, and its upper surface is placed at the same height as or near the ground surface 91. The base 1 becomes the base of the pole member 2 when a concrete member 11 is filled in a hole 111 dug with a digging tool called an auger 8 shown in Figure 2. The auger 8 is a tool that has a shaft portion 81 that serves as the axis of rotation and a spiral member 82 attached around it. When drilling a hole in the ground 9, the shaft 81 rotates and is sent underground, and the soil dug up by the spiral member 82 is sent to the surface 91 side of the ground, thereby digging a hole 111.

[0036] Returning to Figure 1, as shown in the enlarged partial view of Figure 1A, the cylindrical base portion 1 has an outer periphery that is uneven in the diameter direction, and the uneven portion is in contact with the unevenness 116 of the soil of the ground 9 (side wall 112 of hole 111) so as to penetrate into it. The unevenness 115 on the peripheral surface of the base 1 is realized by pouring the concrete member 11 into a hole 111 dug by an auger 8, and the presence of this unevenness 115 creates friction between the ground 9 and the base 1, making it possible to create a structure in which the pole member 2 is less likely to tip over.

[0037] In the conventional footing method, a portion of a concrete base is covered with soil to enlarge the base itself in the planar direction, and the weight of the base prevents the pole member from tipping over. However, the inventors of the present invention have discovered that tipping can be prevented by friction between the unevenness 115 on the outer surface of the cylindrical base portion 1 and the unevenness 116 on the side wall 112 of the hole 111 in the ground 9. With the base portion 1 of the present invention, the installation area (when viewed from above the ground surface 91) can be reduced and its own weight can also be kept small, resulting in a pole structure 101 that is less likely to cause ground subsidence.

[0038] The depth of the base 1 (D shown in Figure 1, which can also be referred to as height) is not particularly limited, but specifically, a depth from the ground surface 91 of 1.0 m or more to 4.5 m or less is applicable. The lower limit of the depth is preferably 1.2 m or more, more preferably 1.6 m or more, even more preferably 2.0 m or more, even more preferably 2.5 m or more, and most preferably 3.0 m or more. The upper limit of the depth is preferably 4.0 m or less, more preferably 3.5 m or less, and even more preferably 3.0 m or less. These ranges are preferable in that they make it easier to ensure the area (friction) of the irregularities 115 on the outer periphery of the base part 1 and also ensure the weight required to support the pole member 2.

[0039] The diameter of the base 1 (φ1 shown in FIG. 1) is not particularly limited, but specifically, a diameter of 0.4 m or more and 1.5 m or less is applicable. The lower limit of the diameter is preferably 0.6 m or more, more preferably 0.8 m or more, and even more preferably 1.0 m or more. The upper limit of the diameter is preferably 1.2 m or less, and more preferably 1.0 m or less. These ranges are preferable from the viewpoint of reducing the installation area, and are also preferable from the viewpoint of making it easier to ensure the area (friction) of the irregularities 115 on the outer periphery of the base part 1.

[0040] <<Concrete components>> The concrete member 11 is not particularly limited as long as it can support the pole member 2 by hardening from a liquid state into a solid and can fit into the unevenness of the side wall 112 of the hole 111 dug in the ground 9. Specifically, mortar or concrete can be used, but concrete is preferable from the viewpoint of strength.

[0041] <<Concrete reinforcement members>> The concrete reinforcing member 12 is disposed inside the concrete member 11 and serves to increase the strength of the base portion 1. A reinforcing steel member, which is made of metal rod-shaped members arranged in a lattice pattern, is preferably used as the concrete reinforcing member 12. By using a reinforcing steel member, it is easier to fill with the liquid concrete member 11, and the strength of the base 1 can be improved. The concrete reinforcing member 12 may be placed inside the concrete member 11, but by using a cylindrical concrete reinforcing member 12 that surrounds the pole member 2, the strength of the base portion 1 can be increased evenly. Note that it is preferable to make the concrete reinforcing member 12 cylindrical, with a smaller diameter than the cylindrical base portion 1 (hole 111), and to place the pole member 2 inside the cylindrical body, as this increases the strength of the base portion 1 more evenly and allows it to evenly withstand the force of the pole member 2 trying to tip it over.

[0042] <<Standing support parts>> The self-supporting support member 13 is a tubular or rod-shaped member fixed to the pole member 2, and serves to support the pole member 2 so that it does not fall over. The material of the self-supporting support member 13 is not particularly limited, but it is preferably made of metal from the viewpoint of strength. When the pole member 2 is made of metal, it is preferable to use a metal support member 13 as well, since the pole member 2 and one end side 132 of the support member 13 can be firmly fixed to each other by welding. The self-standing auxiliary members 13 are in a state where a part or all of them are disposed inside the concrete member 11 of the base 1 in a state where they intersect (diagonally) in the horizontal and vertical directions. In addition, the other end side 131 of the self-supporting auxiliary member 13 passes through the lattice holes of the concrete reinforcement member 12 and is positioned so as to be stuck into the ground 9 or in contact with the concrete reinforcement member 12. If the other end side 131 of the self-supporting auxiliary member 13 is in contact with the concrete reinforcement member 12, it is effective in preventing the pole member 2 from tipping over, but as shown in Figure 1, it is preferable to have the other end side 131 of the self-supporting auxiliary member 13 pass through the lattice holes of the concrete reinforcement member 12 and be stuck into the ground 9, in order to further prevent the pole member 2 from tipping over. Note that even if the other end side 131 of the self-supporting auxiliary member 13 passes through the lattice holes of the concrete reinforcement member 12 and is in contact with the side wall 112 of the hole 111, it is possible to prevent the pole member 2 from tipping over.

[0043] <<Flange>> The flange 14 is provided above (on the ground surface 91 side of) the center of the base 1 in the depth (D) direction, and is a member that extends horizontally beyond the diameter (φ1) of the base 1. The flange portion 14 has its bottom surface 141 received in a flange groove portion 142 dug in the ground 9, supporting the weight of the pole workpiece 101 and serving to prevent ground subsidence, and also having the effect of preventing the pole member 2 from tipping over. The flange 14 is made of a concrete member 11, and a flange reinforcing member 143 is disposed inside the flange 14. The flange reinforcing member 143 is a member that increases the strength of the flange 14. The flange reinforcing member 143 is a reinforcing bar member made of metal rod-shaped members arranged in a lattice pattern. The flange reinforcing member 143 only needs to be placed inside the flange 14, and is preferably connected and fixed to the concrete reinforcing member 12, as this further improves the strength of the flange 14.

[0044] <Pole components> The pole member 2 has one end 21 fixed to the concrete member 11 of the base 1. The material of the pole member 2 is not particularly limited, but is preferably made of metal from the viewpoint of reducing the installation area and ensuring strength. The pole member 2 may be a hollow tubular member or a solid rod-shaped member. However, a tubular member is preferable from the viewpoint of suppressing ground subsidence due to its own weight, since it can be made lighter. Furthermore, the shape of the outer periphery of the horizontal (diameter) cross section of the pole member 2 is not particularly limited, but if the outer periphery is rectangular, there is an effect that the flat portion makes it easier to secure a large contact area for the self-supporting support member 13 and to fix it. On the other hand, if the outer periphery is circular, there is a higher degree of freedom in the installation direction than when the outer periphery is polygonal, and there is an effect that the self-supporting support member 13 can be installed at any angle.

[0045] As shown in FIG. 1, the thickness φ2 of the pole member 2 (diameter in the case of a cylinder, the length of the diagonal in the case of a polygon, or the diameter of the circumscribed circle in the case of a polygon) is not particularly limited, but specifically, a thickness of 0.10 m or more and 0.70 m or less is applicable. The lower limit of the diameter φ2 is preferably 0.20 m or more, more preferably 0.30 m or more, even more preferably 0.35 m or more, even more preferably 0.40 m or more, and most preferably 0.45 m or more. The upper limit of the diameter φ2 is preferably 0.65 m or less, more preferably 0.6 m or less, even more preferably 0.55 m or less, and even more preferably 0.50 m or less. These ranges are preferable in terms of the installation area of ​​the base part 1 that supports the pole member 2.

[0046] The height H of the pole member 2 (height from the ground surface 91 to the tip of the pole member 2) is not particularly limited, but specifically, a height of 4.0 m or more and 20 m or less is applicable. The lower limit of the height H is preferably 6.0 m or more, more preferably 8.0 m or more, and even more preferably 10 m or more. The upper limit of the height H is preferably 15 m or less, and more preferably 10 m or less. These ranges are preferable in terms of reducing the weight of the pole member 2 and suppressing ground subsidence while ensuring the height of the pole member 2. Furthermore, these ranges are particularly suitable when used as signboard structures, as they are at a height that is easily noticeable.

[0047] Furthermore, to explain more specifically the diameter φ1 and depth D of the base portion 1 and the thickness φ2 and height H of the pole member 2, the diameter of the base portion 1 is in the range of 0.48m or more to 1.0m or less, the depth of the base portion 1 is in the range of 1.5m to 4.0m, the thickness of the pole member 2 is in the range of 0.1m or more to 0.65m or less, and the height of the pole member 2 from the ground surface is in the range of 4m or more to 15m or less, and by using a metallic and tubular pole member 2, a balance is achieved between the effect of suppressing ground subsidence due to the pole structure 101's own weight and the effect of reducing the installation area of ​​the pole structure 101, making this a particularly suitable combination for a pole structure 101 for attaching a signboard to the tip (multi-end side 22) of the pole member 2.

[0048] <Concrete root wrapping materials> The concrete wrapping member 3 is placed on the base 1 and is arranged to block the through-hole 31 provided in the tubular pole member 2. Blocking the through-hole 31 makes it difficult for rainwater and the like to enter. The concrete wrapping member 3 also has the effect of preventing the pole member 2 from tipping over. 11, it is preferable that the top surface 34 of the concrete root wrapping member 3 be a surface that slopes outward from the pole member 2. Creating a sloped surface allows rainwater to flow away and makes it difficult for water to accumulate in the gap between the pole member 2 and the concrete root wrapping member 3, which has the effect of suppressing corrosion of the pole member. When the pole member 2 is a tubular member, the through-hole 31 provided in the pole member 2 is a hole for pouring the concrete member 11 into the hollow portion 33 inside the pipe, and is provided above the ground surface 91. Pouring the concrete member 11 into the hollow portion 33 of the tubular pole member 2 makes the pole member 2 less likely to tip over. Furthermore, when the tubular pole member 2 is made of metal, filling the hollow portion 33 with the concrete member 11 also has the effect of preventing rainwater from accumulating inside and causing rust inside.

[0049] <Other> Regarding the ground where the pole structure 101 is to be installed, the n value of the ground at the bottom surface 114 of the hole 111 where the bottom surface 110 of the base 1 is received is preferably 2.5 or more. Also, the n value of the ground at the bottom surface 144 of the flange groove 142 where the bottom surface 141 of the flange 14 is received is preferably 2.5 or more. If the n value is 2.5 or more, there is an effect of further suppressing the ground subsidence of the pole structure 101. The n value in this specification is a value measured by the screw weight penetration test method according to JISA1221.

[0050] <How to install the pole structure> 2 to 9, a method for installing the pole workpiece 101 will be described. As shown in Fig. 1, the pole workpiece 101 will be described as using a tubular member in which the inside of the pole member 2 is hollow (hollow portion 33).

[0051] First, as shown in Fig. 2, an auger 8 is used to dig a cylindrical hole 111 having a depth of 1.0 m to 4.5 m and a diameter of 0.4 m to 1.5 m in the ground 9. This step is referred to as a hole digging step. It is particularly preferable to use an auger 8 with a diameter (the diameter of the hole 111 after digging) of 1.0 m or more and 1.2 m or less. When an auger 8 with this diameter is used, the opening size is approximately the same as the size of a commercially available sandbag called a flexible container, so the excavated soil excavated by the auger 8 can be placed directly into the auger 8, which particularly improves the efficiency of the excavated soil removal work and is particularly effective in shortening the construction period.

[0052] Also, a groove that will become the flange 14 is created in the ground 9. Specifically, a groove is dug around the upper periphery of the hole 111 dug by the auger 8. This groove corresponds to the flange groove 142. This process is referred to as the flange groove creating process. When the hole 111 and the flange groove portion 142 are formed, the bottom surface 114 of the hole 111 and the bottom surface 144 of the flange groove portion 142 may be subjected to a rolling compaction operation.

[0053] Next, as shown in Figure 3, concrete reinforcement member 12, which is a reinforcing bar member made up of rod-shaped members arranged in a lattice pattern, is installed inside hole 111. This process is called the concrete reinforcement member installation process. At this time, concrete reinforcement member 12 is placed so that it is in contact with bottom surface 114 of hole 111, which stabilizes it and makes the work easier.

[0054] Furthermore, a flange reinforcing member 143, which is a reinforcing bar member formed by assembling rod-shaped members in a lattice pattern, is placed inside the flange groove 142. This step is referred to as a flange reinforcing member placing step. The concrete reinforcing member 12 and the flange reinforcing member 143 may be fixed to each other with a wire member called a binding wire. This step is referred to as a reinforcing member fixing step. The flange reinforcing member 143 is provided with a hole through which the pole member 2 passes at a location corresponding to the center of the cylindrical concrete reinforcing member 12 .

[0055] Next, as shown in Fig. 4, one end side 21 of the pole member 2 is placed inside the hole 111 (cylindrical concrete reinforcement member 12) so that the length (height) is 4.0 m or more and 20 m or less from the surface of the ground 9 (ground surface 91). This step is referred to as the pole member placement step. At this time, the end surface 212 of the one end side 21 of the pole member 2 and the bottom surface 114 of the hole 111 come into contact with each other.

[0056] 5 and 6, the other end 131 of the self-standing auxiliary member 13 passes through the lattice holes of the concrete reinforcing member 13 and is stuck into the ground 9, passes through the lattice holes of the concrete reinforcing member 13 and is in contact with the side wall 112 of the hole 111, or is in contact with the concrete reinforcing member 13 itself, and one end 132 of the self-standing auxiliary member 13 is fixed to the pole member 2. This process is called the self-standing auxiliary member installation process. 1 and 6 are diagrams showing a state in which the other end 131 of the self-standing auxiliary member 13 has passed through the lattice-like holes of the concrete reinforcing member 13 and is stuck into the ground 9.

[0057] Next, the concrete member 11 is poured into the hole 111 and the flange groove portion 142. As a result, the space 113 between the unevenness 116 of the side wall 112 of the hole 111 and the outer surface of the pole member 2 is filled with the concrete member 11. This process is referred to as the concrete filling process. This also brings the bottom surface 110 of the base into contact with the bottom surface 114 of the hole 111, thereby supporting the weight. Furthermore, the concrete member 11 is filled into the flange groove portion 142 to form the flange groove portion 142. This step is referred to as a flange groove filling step. As a result, the bottom surface 141 of the flange portion 14 and the bottom surface 144 of the flange groove portion 142 come into contact with each other, and the weight is received.

[0058] 7, a through-hole 31 is formed in the pole member 2 at a position above the ground surface 91, spanning from the outside to the hollow internal space (hollow portion 33). This step is referred to as a through-hole forming step. Next, as shown in Fig. 8, the concrete member 11 is filled into the internal space 33 of the pole member 2 through the through hole 31 created in the through hole creating step. This step is referred to as the step of filling the internal space of the pole with concrete.

[0059] 9, a concrete root wrapping member 3 is fabricated at a position higher than the ground surface 91 so as to hide the through-hole 31. This step is referred to as a root wrapping member fabrication step. The concrete root wrapping member 3 can be made by creating a frame 32 that surrounds the ground surface 91 side of the pole member 2, pouring the concrete member 11 into the frame 32, and removing the frame 32 after it has hardened and become fixed to the base 1, thereby completing the pole structure 101 shown in Figure 1.

[0060] In addition to the root wrapping member preparation process, a process of preparing an inclined surface before the concrete member 11 hardens may be added so that the upper surface 34 of the concrete root wrapping member 3 becomes an inclined surface, as shown in Figure 11. This process is referred to as the inclined surface preparation process. The inclined surface creating step may be a step of scraping off the concrete member 11 after it has hardened and become the concrete encasing member 3. However, from the viewpoint of shortening the construction period, it is preferable to form the concrete member 11 into an inclined surface before it hardens, rather than scraping it off after it hardens.

[0061] In this embodiment, the pole workpiece 101 having a flange portion 14 has been described, but as a modified example of this embodiment, a pole workpiece 102 without a flange portion 14 may also be used, as shown in Figure 10. Furthermore, the pole workpiece 101 of this embodiment shown in FIG. 1 and the pole workpiece 102 of the modified example of this embodiment shown in FIG. 10 do not necessarily need to be provided with the self-supporting auxiliary member 13. Furthermore, the pole workpiece 101 of this embodiment shown in FIG. 1 and the pole workpiece 102 of the modified example of this embodiment shown in FIG. 10 do not necessarily need to be provided with the concrete root wrapping member 3. [Industrial Applicability]

[0062] The pole structure and pole structure installation method of the present invention are particularly suitable for use in sign structures in which a sign is attached to the tip of a pole member, but can also be applied to the base of a support pillar for a building such as an overpass. [Explanation of symbols]

[0063] 101, 102 Pole workpiece 1 Base 2 Pole members 21 One end side of the pole member 22 Other end side of pole member 3 Concrete root wrapping members 31 Through hole 32 Frame 33 Hollow part 34 Top surface of concrete root-wrapped member (inclined surface) 4. Signboard 11 Concrete members 110 Bottom of base 1 111 holes 112 Side wall 113 Space 114 Bottom of hole 111 115 Unevenness of the peripheral surface of the base part 1 116 Unevenness of the side wall 112 of the hole 111 12 Concrete reinforcement members 13 Self-supporting support member 131 Other end side of self-supporting auxiliary member 132 One end side of self-supporting auxiliary member 14. Collar 141 Bottom of flange 142 flange groove 143 Collar reinforcement member 144 bottom surface of flange groove portion 142 8 Ogre 81 Shaft section 82 Spiral Member 9 ground 91 Ground surface

Claims

1. a cylindrical base portion buried in the ground to a depth of 1.0 m to 4.5 m and a diameter of 0.4 m to 1.5 m; a pole member having a length of 4.0 m to 20.0 m from the ground surface, the pole member being disposed in the center of the base, The base portion includes a concrete member and a concrete reinforcing member, The concrete reinforcement member is a reinforcing bar member in which rod-shaped members are arranged in a lattice pattern, the concrete reinforcement member is disposed inside the concrete member; One end of the pole member is fixed to a concrete member. A pole structure comprising a base and a pole member, characterized in that the outer periphery of the base is uneven in the diameter direction, and the unevenness is in contact with the soil on the ground.

2. a cylindrical base portion buried in the ground to a depth of 1.0 m to 4.5 m and a diameter of 0.4 m to 1.5 m; a flange portion that is located above the center of the base portion in the depth direction and that extends horizontally beyond the diameter of the base portion; a pole member having a length of 4.0 m to 20 m from the ground surface, the pole member being disposed in the center of the base, The base portion includes a concrete member and a concrete reinforcing member, The concrete reinforcement member is a reinforcing bar member in which rod-shaped members are arranged in a lattice pattern, the concrete reinforcement member is disposed inside the concrete member; A pole structure comprising a base and a pole member, characterized in that one end of the pole member is fixed with a concrete member.

3. 2. A pole structure comprising a base and a pole member according to claim 1, wherein the n value of the ground on which the bottom surface of the base rests is 2.5 or more.

4. 3. The pole structure comprising a base and a pole member according to claim 2, wherein the n value of the ground on which the bottom surface of the flange rests is 2.5 or more.

5. The pole member includes a rod-shaped self-supporting auxiliary member, The self-supporting auxiliary members are arranged partly or entirely inside the concrete member of the base portion, crossing each other horizontally and vertically; the other end side of the self-supporting auxiliary member is in a state of passing through the lattice holes of the concrete reinforcement member and sticking into the ground, in a state of passing through the lattice holes of the concrete reinforcement member and contacting the side of the hole, or in a state of contacting the concrete reinforcement member, 3. The pole structure comprising a base and a pole member according to claim 1 or 2, wherein one end side of the self-supporting auxiliary member is fixed to the pole member.

6. The interior of the pole member is hollow, A through hole is provided in the pole member at a position above the ground surface, spanning from the outside to the hollow space, The cavity below the pole member is filled with concrete, 3. A pole structure comprising a base and a pole member according to claim 1 or 2, wherein the through-hole is hidden by a concrete root covering member.

7. a pole workpiece comprising the base and the pole member according to claim 1 or 2; A signboard work comprising a pole work and a signboard, characterized in that a signboard is provided on the other end side of the pole member.

8. a hole digging step of digging a cylindrical hole in the ground having a depth of 1.0 m to 4.5 m and a diameter of 0.4 m to 1.5 m; a concrete reinforcing member installation process for installing a concrete reinforcing member, which is a reinforcing bar member formed by arranging rod-shaped members in a lattice pattern, inside the hole; a pole member placement step of placing one end of the pole member inside the hole so that the length is 4.0 m or more and 20 m or less from the surface of the ground; a concrete filling step of filling a space between the uneven surface of the side wall of the hole and the outer surface of the pole member with concrete; A method for installing a pole structure having a base portion and a pole member, comprising:

9. a flange groove forming process for forming a flange groove on the ground; a flange reinforcing member arranging step of arranging a flange reinforcing member, which is a reinforcing bar member formed by assembling rod-shaped members in a lattice pattern, inside the flange groove; a flange groove filling step of filling the flange groove with a concrete member; 9. The method for installing a pole structure comprising a base and a pole member according to claim 8, further comprising:

10. Between the pole member arrangement step and the concrete filling step, The other end of the self-supporting auxiliary member is in a state where it passes through the lattice holes of the concrete reinforcement member and is stuck into the ground, or in a state where it passes through the lattice holes of the concrete reinforcement member and is in contact with the side of the hole, or in a state where it is in contact with the concrete reinforcement member, a self-supporting auxiliary member installation process in which one end side of the self-supporting auxiliary member is fixed to the pole member; 10. A method for installing a pole structure comprising a base and a pole member according to claim 8 or 9, comprising:

11. The interior of the pole member is hollow, a through-hole creating step of creating a through-hole at a position above the ground surface of the pole member, extending from the outside to the internal space of the cavity; a step of filling the internal space of the pole member with concrete through the through hole created in the through hole creating step; A root wrapping member creation process for creating a concrete root wrapping member at a position higher than the ground surface so as to hide the through hole; 10. A method for installing a pole structure comprising a base and a pole member according to claim 8 or 9, comprising:

Images