JP2009041343A - Pillar reinforcing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pillar reinforcing device for reinforcing a pillar erected under a ground capable of sufficiently resisting a tension applied to the pillar such as an electric pole without using a branch line and extending the life of the pillar by preventing the exposed portion of the pillar from being bent or broken by an unbalanced tension. <P>SOLUTION: This pillar reinforcing device comprises a plate member 2 for reinforcement extending in the longitudinal direction of the electric pole 1 and erected on the side of the electric pole 1 to which an unbalanced tension is applied, band members 4 for fixing the electric pole 1 to the plate member 2 for reinforcement, and an arm member 5 fixed to the plate member 2 for reinforcement and extending along the ground surface under the ground. The portion of the plate member 2 for reinforcement buried in the ground is longer than the portion of the electric pole 1 buried in the ground. The portion of the plate member 2 for reinforcement exposed to the ground surface is longer than the portion of that buried in the ground. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a columnar object reinforcement device that can reinforce a columnar object such as a utility pole without using a branch line.

In a columnar object such as a utility pole (hereinafter described as a utility pole), a branch line is provided to balance the tension between the suspension line and the overhead cable and prevent the utility pole from collapsing and tilting. However, if a branch line is provided, land use between the utility pole and the branch line is restricted, and there is a disadvantage that the compensation cost for land use increases.
For this reason, conventionally, a columnar object reinforcement structure has been considered in which a stable standing state of a utility pole is ensured without requiring a branch line (see Patent Documents 1 to 3).

  Among these, the configuration shown in Patent Document 1 has an anchor embedded in the bottom of a hole provided in the ground on which a columnar object such as a utility pole is erected, and the bottom of the columnar object is inserted into the upper end of the anchor. The columnar object is erected.

  Moreover, the structure shown by patent document 2 is a cylinder which embeds an anchor in the bottom part of the hole provided in the ground by which columnar objects, such as a utility pole, are erected, and inserts the bottom part of the columnar object in the upper end part of the anchor In addition to providing a cylindrical body, an arm member extending along the ground surface of the ground is provided on the cylindrical body, and a columnar object is erected in the cylindrical body.

Furthermore, the configuration shown in Patent Document 3 is a columnar object reinforcement device that reinforces a columnar object such as an electric pole standing upright in the ground, and abuts on and supports the columnar object located near the surface in the ground. It is comprised from a supporting member and the arm member extended in parallel with the underground surface from a supporting member.
JP 2003-213967 A JP 2003-336257 A JP 2004-84267 A

  However, in any of the above-described configurations, the problem that the power pole is inclined from the portion embedded in the ground of the power pole is solved, but when the tension applied to the power pole is large, the surface of the power pole extending upward from the ground surface. The protruding part is curved, and there is a possibility that the utility pole breaks after aging.

  The present invention has been made in view of such circumstances, and can sufficiently withstand the tension applied to a columnar object such as a utility pole without using a branch line, and bends at the exposed portion of the columnar object due to unbalanced tension. Alternatively, the main object is to provide a columnar reinforcing device capable of preventing breakage and extending the lifetime of the columnar.

  In order to achieve the above object, a columnar object reinforcing device according to the present invention is a device that reinforces a columnar object standing in the ground, and extends along the longitudinal direction of the columnar object. A reinforcing plate-like member standing on the side to which the unbalanced tension of the columnar object is applied, a fixing means for fixing the columnar object to the reinforcing plate-like member, and being fixed to the reinforcing plate-like member, A portion of the reinforcing plate-like member embedded in the ground is longer than a portion of the columnar body embedded in the ground, and the reinforcing plate It is characterized in that the portion of the plate-like member exposed on the ground is longer than the portion of the reinforcing plate-like member embedded in the ground.

  Therefore, on the side opposite to the side of the columnar object where the branch line is attached, that is, on the side where the unbalanced tension is applied, not only the part buried in the ground of the columnar object but also the part exposed to the ground is extensively reinforced. Since it is reinforced by the plate member for reinforcement, it becomes possible to effectively receive the unbalanced tension applied to the utility pole with the plate member for reinforcement even in the portion exposed on the ground. In addition, the reinforcing plate-like member is fixed to the arm member extending along the ground surface in the ground, and the portion embedded in the ground is made longer than the portion in which the columnar body is embedded in the ground. It is possible to prevent the plate member from tilting and to firmly lay the reinforcing plate member, and the portion of the reinforcing plate member exposed on the ground is buried in the ground of the reinforcing plate member. Since it is longer than the portion, it is possible to ensure sufficient reinforcement of the columnar object.

In the above-described configuration, an anchor member embedded in the ground may be fixed to the distal end portion of the arm member in order to secure a stronger laying of the reinforcing plate-like member.
Moreover, you may make it comprise the fixing means mentioned above with the band member which rotates and fastens a columnar thing to the plate member for reinforcement.

  Furthermore, in order to securely reinforce the portion of the columnar object that is exposed on the ground, the portion of the reinforcing plate-like member that is exposed on the ground is approximately the same length as the portion of the columnar object that is exposed on the ground. May be. Further, in order to reliably receive and disperse the unbalanced tension applied to the columnar object, the reinforcing plate member may be formed of a steel plate and the surface receiving the columnar object may be curved in a concave shape.

    As described above, according to the first aspect of the present invention, the reinforcing plate-like member is erected on the side to which the unbalanced tension of the columnar object is applied to fix the columnar object, and the reinforcing plate-like member is installed in the ground. Fixed to the arm member extending along the ground surface, the portion of the reinforcing plate member embedded in the ground is longer than the portion of the columnar body embedded in the ground, and the reinforcing plate member is placed on the ground. Since the exposed part is longer than the part embedded in the ground of this reinforcing plate-like member, the unbalanced tension applied to the columnar object such as the electric pole can be reduced without using the conventional branch line, root skein, or root repellent. It becomes possible to endure sufficiently. For this reason, the columnar object is not tilted from the ground due to the unbalanced tension, and the portion exposed to the ground is not bent or broken, and the life of the columnar object can be extended.

  Further, according to the invention of claim 2, since the anchor member embedded in the ground is fixed to the tip of the arm member, it is possible to lay the reinforcing plate-like member firmly and withstand the tension. Is possible.

  According to the invention according to claim 3, since the band member for turning and fixing the columnar object to the reinforcing plate-like member is used as the fixing means, the reinforcing device can be retrofitted regardless of the type of the existing utility pole, In addition, the fixing work can be easily performed.

  According to the invention which concerns on Claim 4, since the part exposed on the ground of the reinforcing plate-like member is set to be substantially the same length as the part exposed on the ground of the columnar object, the portion where the columnar object is easily bent Even if there is a variation in the length, it is possible to effectively prevent the electric pole from being bent or broken.

  According to the invention of claim 5, since the reinforcing plate-like member is made of a steel plate and the surface that receives the columnar object is curved in a concave shape, the unbalance tension applied to the columnar object is reliably received and dispersed. In addition, the reinforcing plate-like member can be used as the ground pole of the utility pole.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best embodiment of the invention will be described with reference to the accompanying drawings.

  1 and 2, reference numeral 1 denotes an electric pole (for example, a columnar object according to the present invention) on which electric wires and telephone lines are stretched, and a base portion is buried in the ground and erected on the ground. Has been. The side where the unbalanced tension of the utility pole 1 is applied, that is, the side opposite to the side where the branch line (indicated by a one-dot chain line in the figure) is originally attached, is extended along the longitudinal direction (axial direction) of the utility pole. A reinforcing plate-like member 2 is erected.

  The reinforcing plate-like member 2 is constituted by, for example, a long steel plate having a width substantially equal to or longer than the diameter of the utility pole 1, and the portion buried in the ground is buried in the utility pole 1. The portion that is exposed to the ground surface is set longer than the portion that is buried in its own ground. In this example, the part exposed on the ground surface is substantially equal to the part exposed on the ground surface of the utility pole 1, for example, the total length is 15 m, the underground part is 2.5 m, and the ground part is 12 m. .5m.

  Further, a concave curved surface 3 that receives the side surface of the utility pole 1 is formed on the surface of the reinforcing plate-like member 2 that faces the utility pole 1, and the side surface of the utility pole 1 is in contact with the curved surface 3. .

  The reinforcing plate-like member 2 and the utility pole 1 are fixed at a plurality of locations by band members 4 such as a free band that fastens the utility pole 1 to the reinforcing plate-like member 2.

  Moreover, the arm member 5 comprised by the square material etc. which extend along the ground surface is being fixed to the part currently embed | buried under the ground of the plate-shaped member 2 for reinforcement. The arm member 5 is formed to be 3 m or more, for example, and an intermediate portion thereof is fixed to the reinforcing plate-like member 2 by means such as welding or bolting, and is brought into contact with the base end portion of the utility pole 1 from the side. ing.

  Anchor members 6 embedded in the ground are fixed to both ends of the arm member 5. The anchor member 6 is made of, for example, square bar, and is firmly fixed to the arm member by means of welding, bolting, or the like. In this example, the anchor member 6 is substantially below the reinforcing plate-like member 2. The lower end of the reinforcing plate-like member 2 is substantially the same depth as the lower end of the reinforcing plate-like member 2.

  In the above configuration, in order to attach the above-described reinforcing device to the existing utility pole 1, the reinforcing plate-like member 2 is placed in the immediate vicinity of the side where the unbalanced tension of the utility pole 1 is applied using a borehole built-up column car or the like. The hole for plate member to be installed is excavated along the electric pole 1 and the hole for the anchor member for installing the anchor member 6 at each position in the tension direction with respect to the electric pole 1 is extended from the hole for the reinforcing plate. Excavation is carried out at a predetermined distance, and an arm member groove for installing the arm member 5 is excavated so as to connect the two anchor member holes.

  Then, the reinforcing plate-like member 2 is installed in the plate-like member hole and is brought into contact with the side surface of the utility pole 1 on which the unbalanced tension is applied, and the band member 4 is used to reinforce the utility pole 1 in order to maintain this state. Fix to the plate member 2. Thereafter, the anchor member 6 is installed in the anchor member hole, the arm member 5 is installed in the arm member groove, and the middle of the arm member 5 is fixed to the reinforcing plate member 2 by welding or the like. Both ends of 5 are fixed to the anchor member 6 by welding or the like. After that, if the excavated hole or groove is filled, the mounting operation of the reinforcing device is completed.

  Therefore, according to the above-described configuration, even if an unbalanced tension is applied to the utility pole 1, the utility pole 1 has a portion exposed to the ground surface as well as its buried portion, and the reinforcing plate-like member 2 is widely applied. Since they are in contact with each other, the unbalanced tension acting on the utility pole 1 can be received by the reinforcing plate-like member 2 to be dispersed and reduced. For this reason, the electric pole 1 is not inclined from the ground part, or the part exposed to the ground surface is not bent, and the electric pole can be prevented from being collapsed, bent or broken, and the life of the electric pole can be extended. .

  Moreover, since the surface which receives the utility pole 1 of the reinforcing plate-like member 2 is curved in a concave shape, it is easy to disperse the unbalanced tension received by the reinforcing plate-like member 2, and the utility pole 1 is provided with the reinforcing plate-like member. There is no risk of coming off from 2. Further, since the reinforcing plate-like member 2 is made of a steel plate, the reinforcing plate-like member 2 can be used as a grounding pole of the utility pole 1.

  FIG. 3 shows a modification of the above-described configuration example. In the above configuration, the reinforcing plate-like member 2 and the anchor member 6 are installed in the excavated hole, but in order to reduce excavation work, the tip of the reinforcing plate-like member 2 is tapered, The anchor member 6 may have a cylindrical shape with a tapered tip, and a spiral excavation blade 7 may be provided around the tapered tip. The arm member 5 is formed with a hole 9 into which a prismatic column 8 having a pin hole provided at the upper end of the anchor member 6 can be inserted, and a portion protruding from the hole 9 through which the prismatic column 8 is inserted. The anchor member 6 is fixed to the arm member 5 by inserting the pin 10 into the arm member 5. In addition, since the other structure is the same as that of the said structural example, the same number is attached | subjected to the same location and description is abbreviate | omitted.

  In such a configuration, the reinforcing plate-like member 2 is driven along the electric pole 1 by a vibrator, and the anchor member 6 is connected to the borehole built-in column car via a tool and directly buried in the ground. Thereafter, an arm member groove for installing the arm member 5 is excavated so as to connect the two anchor members 6, and the arm member 5 is installed in the excavated arm member groove. While fixing to the reinforcing plate-like member 2 by welding or the like, the prism member 8 of the anchor member 6 is inserted into the holes 9 at both ends of the arm member 5, and the pin 10 is inserted into the portion protruding from the hole 9 to fix the anchor member. 6 is fixed to the arm member 5. After that, if the excavated portion is filled, the attaching operation of the reinforcing device is completed.

  Therefore, according to such a configuration, in addition to the effects of the above-described configuration example, it is not necessary to dig a hole for installing the reinforcing plate-like member 2 and the anchor member 6, so that the reinforcement device can be easily installed. The installation work can be performed in a short time.

FIG. 1 is a perspective view showing an example of the overall configuration of a columnar object reinforcing apparatus according to the present invention. FIG. 2 is a plan view showing the positional relationship between the columnar object reinforcing device and the utility pole. FIG. 3 is a perspective view showing another configuration example of the columnar object reinforcing device according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric pole 2 Reinforcing plate member 3 Curved surface 4 Band member 5 Arm member 6 Anchor member

Claims (5)

In a columnar object reinforcement device that reinforces a columnar object standing in the ground,
A reinforcing plate-like member that extends along the longitudinal direction of the columnar object and is erected on the side to which the unbalanced tension of the columnar object is applied;
Fixing means for fixing the columnar object to the reinforcing plate-like member;
An arm member fixed to the reinforcing plate-like member and extending along the ground surface in the ground,
The portion of the reinforcing plate member embedded in the ground is longer than the portion of the columnar member embedded in the ground, and the portion of the reinforcing plate member exposed on the ground is A columnar object reinforcing device characterized in that it is longer than the portion of the plate-like member embedded in the ground. The columnar object reinforcing device according to claim 1, wherein an anchor member embedded in the ground is fixed to a distal end portion of the arm member. 2. The columnar object reinforcing apparatus according to claim 1, wherein the fixing means is a band member that rotates the columnar object around the reinforcing plate-shaped member. 2. The columnar object reinforcing apparatus according to claim 1, wherein a portion of the reinforcing plate-like member exposed on the ground has substantially the same length as a portion of the columnar object exposed on the ground. The columnar object reinforcing apparatus according to claim 1, wherein the reinforcing plate-shaped member is formed of a steel plate, and a surface that receives the columnar object is curved in a concave shape.

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