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JP2004293210A - Renovation method for electric pole - Google Patents

Renovation method for electric pole Download PDF

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Publication number
JP2004293210A
JP2004293210A JP2003088899A JP2003088899A JP2004293210A JP 2004293210 A JP2004293210 A JP 2004293210A JP 2003088899 A JP2003088899 A JP 2003088899A JP 2003088899 A JP2003088899 A JP 2003088899A JP 2004293210 A JP2004293210 A JP 2004293210A
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Japan
Prior art keywords
pole
base
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filler
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JP3973589B2 (en
Inventor
Shuichi Sato
修一 佐藤
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JFE Metal Products and Engineering Inc
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JFE Metal Products and Engineering Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To renovate an electric pole easily, surely, in a short time, and at a low cost. <P>SOLUTION: An existing hollow electric pole 1 is cut off leaving its base 1A, and a connecting pole 2 having a length to project from the base 1A is inserted into the base 1A. A gap between the base 1A and the connecting pole 2 is filled with a filler 3. A gap adjusting spacer 4 whose outer peripheral surface is formed to be tapered is fitted to a part of the connecting pole 2 projecting from the base 1A. A lower part of a tapered new hollow electric pole 5 is fitted to the connecting pole 2 by the spacer 4. Thus, the new electric pole 5 is constructed on the base 1A. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
この発明は、電柱改修工法、特に、電柱の改修を容易に、確実に、短時間に且つ安価に行うことができる電柱改修工法に関するものである。
【0002】
【従来の技術】
例えば、テーパー状鋼管柱からなる通信用電柱は、特に、その基部が劣化しやすい。このための電柱改修工法の例が特開2001−003602号公報(特許文献1)に開示されている。
【0003】
以下、上記特許文献1に開示された2つの従来電柱改修工法を、図面を参照しながら説明する。
【0004】
図7は、第1の従来電柱改修工法を示す工程図であり、同図(A)は、既設電柱の切断工程を示す断面図、同図(B)は、充填材の充填工程を示す断面図、同図(C)は、新設電柱の挿入工程を示す断面図、同図(D)は、電柱の改修終了工程を示す断面図である。
【0005】
図7において、11は、鋼管柱またはコンクリート柱からなる既設電柱、11Aは、地中の既設電柱11の基部、12は、基部11A内に充填された流動性を有する充填材、13は、下面に鋼管製連結柱13Aが固定されたテーパー鋼管製新設電柱である。連結柱13Aは、その底部が閉塞され、基部11A内に挿入可能な外径を有している。
【0006】
第1の従来電柱改修工法によれば、次のようにして、電柱が改修される。図7(A)に示すように、先ず、既設電柱11をその基部11Aを地中に残してカッター等で切断する(切断線を一点鎖線で示す)。次に、同図(B)に示すように、地中に残された基部11A内に充填材12を適当量、充填する。次に、同図(C)に示すように、充填材12が固化しない内に、新設電柱13の連結柱13Aを基部11A内に挿入する。連結柱13Aを基部11A内に挿入した後、充填材12を充填することもできるが、後述するように、連結柱13Aから張り出した新設電柱13の下部13Bが邪魔となり、充填しずらい。そして、充填材12が固化すると、同図(D)に示すように、新設電柱13が基部11A上に固定され、電柱の改修が終了する。
【0007】
次に、第2の従来電柱改修工法を、図面を参照しながら説明する。
【0008】
図8は、第2の従来電柱改修工法を示す工程図であり、同図(A)は、既設電柱の切断工程を示す断面図、同図(B)は、充填材の充填工程を示す断面図、同図(C)は、連結柱の挿入工程を示す断面図、同図(D)は、充填材の固化による連結柱の固定工程を示す断面図、同図(E)は、新設電柱の連結柱への挿入工程を示す断面図、同図(F)は、電柱の改修終了工程を示す断面図である。
【0009】
図8において、11は、鋼管柱からなる既設電柱、11Aは、地中の既設電柱11の基部、12は、基部11A内に充填されたセメント等の充填材、14は、鋼管製連結柱であり、テーパー状の上半部14Aと上半部14Aの底部に固定された下半部14Bとから構成されている。上半部14Aは、後述する新設電柱に嵌合するようにテーパー状に形成され、下半部14Bは、その底部が閉塞され、基部11A内に挿入可能な外径を有している。15は、連結柱14の上半部14Aが嵌合するテーパー鋼管製新設電柱である。
【0010】
従来の第2電柱改修工法によれば、次のようにして、電柱が改修される。図8(A)に示すように、先ず、既設電柱11をその基部11Aを地中に残してカッター等で切断する(切断線を一点鎖線で示す)。次に、同図(B)に示すように、地中に残された基部11A内に充填材12を充填する。次に、同図(C)に示すように、充填材12が固化しない内に、連結柱14の下半部14Bを基部11A内に挿入する。連結柱14の下半部14Bを基部11A内に挿入した後、充填材12を充填することもできるが、後述するように、下半部14Bから張り出した連結柱14の上半部14Aの下部14Cが邪魔となり、充填しずらい。充填材12が固化すると、同図(D)に示すように、連結柱14が基部11Aに固定される。そして、同図(E)に示すように、連結柱14の上半部14Aに新設電柱15を嵌合させる。このようにして、同図(F)に示すように、電柱の改修が終了する。
【0011】
【特許文献1】特開2001−003602号公報
【0012】
【発明が解決しようとする課題】
以上のようにして、従来電柱改修工法によれば、確実に電柱の改修が行えるが、第1電柱改修工法は、以下のような問題があった。
【0013】
(1)新設電柱13として、その下面に連結柱13Aが一体的に固定されたものを製作する必要があるので、この製作に手間がかかりコスト高となる。
(2)図7(C)に示すように、充填材12が固化しないうちに、新設電柱13の連結柱13Aを基部11A内に挿入するが、充填材12の量が不足する場合には、さらに充填材12を充填する必要がある。しかし、この充填作業は、新設電柱13を吊りながら行う作業であるので、時間と手間がかかる。
(3)しかも、連結柱13Aから張り出した新設電柱13の下部13Bが邪魔になるので、充填作業がやりにくい。
【0014】
第2電柱改修工法は、以下のような問題があった。
【0015】
(1)テーパー状の上半部14Aと円筒状の下半部14Bとからなる連結柱4の製作に時間と手間がかかり、コスト高となる。
(2)図8(C)、(D)に示すように、充填材12が固化しないうちに、連結柱14の下半部14Bを基部11A内に挿入するが、充填材12の量が不足する場合には、さらに充填材12を充填する必要がある。しかし、この充填作業は、連結柱14を吊りながら行う作業であるので、時間と手間がかかる。
(3)しかも、連結柱14の下半部14Bから張り出した上半部14Aの下部14Cが邪魔になるので、充填作業がやりにくい。
(4)連結柱14の上半部14Aを新設電柱15に嵌合させた後、これらの間に隙間がある場合には、連結柱14の高さ調整を行わなければならないが、この作業は、重量のある連結柱14全体を持ち上げる必要があると共に、充填材12が固化する前に行わねばならないので、迅速さが要求される。
【0016】
従って、この発明の目的は、電柱の改修を容易、確実、短時間且つ安価に行うことができる電柱改修工法を提供することにある。
【0017】
【課題を解決するための手段】
請求項1記載の発明は、中空既設電柱をその基部を残して切断し、次いで、前記基部内に、前記基部から突出する長さを有する連結柱を挿入し、次いで、前記基部と前記連結柱との隙間に充填材を充填し、次いで、前記基部から突出した前記連結柱に、外周面がテーパー状に形成された隙間調整用スペーサーを取り付け、そして、テーパー状中空新設電柱の下部を前記隙間調整用スペーサーを介して前記連結柱に嵌め込み、かくして、前記基部上に前記新設電柱を構築することに特徴を有するものである。
【0018】
請求項2に記載の発明は、前記連結柱は、円形鋼管からなることに特徴を有するものである。
【0019】
請求項3に記載の発明は、前記隙間調整用スペーサーは、複数片に分割されていることに特徴を有するものである。
【0020】
請求項4に記載の発明は、前記新設電柱を前記隙間調整用スペーサーを介して前記連結部材に嵌め込む前に、前記隙間調整用スペーサーの下部に前記隙間調整用スペーサーの高さを調整する高さ調整用スペーサーを取り付けることに特徴を有するものである。
【0021】
請求項5に記載の発明は、前記高さ調整用スペーサーは、複数片に分割されていることに特徴を有するものである。
【0022】
【発明の実施の形態】
次に、この発明の電柱改修工法の一実施態様を、図面を参照しながら説明する。
【0023】
図1は、この発明の電柱改修工法を示す工程図であり、同図(A)は、既設電柱を示す断面図、同図(B)は、既設電柱の切断工程を示す断面図、同図(C)は、既設電柱の基部への連結柱の挿入および充填材の充填工程を示す断面図、同図(D)は、連結柱への隙間調整用スペーサーの取り付け工程を示す部分断面図、同図(E)は、電柱の改修終了工程を示す部分断面図である。
【0024】
図1において、1は、コンクリート製既設電柱、1Aは、地中の既設電柱1の基部、2は、基部1A内に挿入された鋼管製連結柱であり、基部1A上に突出する長さを有し、底部は、閉塞されている(閉鎖されていなくても良い)。3は、基部1Aと連結柱2との隙間に充填される砂またはセメントモルタル等の充填材、4は、基部1Aから突出した連結柱2の上部に取り付けられる半割り円筒状隙間調整用スペーサーである。隙間調整用スペーサー4は、プラスチック等で製作され、後述する新設電柱5内に嵌合するように、外周面は、テーパー状に形成されている。隙間調整用スペーサー4を、図2に示すように、複数片(この例では2分割)に分割することによって、連結柱2に容易に取り付けられる。5は、隙間調整用スペーサー4に嵌合させるテーパー鋼管製新設電柱である。
【0025】
この発明によれば、次のようにして、電柱が改修される。図1(A)の既設電柱1をその基部1Aを地中に残して、同図(B)に示すように、カッター等で切断する。次に、同図(C)に示すように、基部1A内に連結柱2を挿入した後、基部1Aと連結柱2との間の隙間に充填材3を充填する。この充填作業は、上記従来工法のように連結柱2に張り出し部がないので容易に行える。次いで、同図(D)に示すように、連結柱2の上部に隙間調整用スペーサー4を取り付ける。スペーサー4の取り付け作業は、これが分割されているので、連結柱2の横方向から容易に行える。このようにして、隙間調整用スペーサー4を取り付けたら、同図(E)に示すように、新設電柱5の下部を隙間調整用スペーサー4を介して連結柱2に嵌合させる。これによって、電柱の改修が終了する。
【0026】
新設電柱5を隙間調整用スペーサー4に嵌合させた後、図4に示すように、スペーサー4と新設電柱5との間に隙間が生じる場合には、スペーサー4を持ち上げれば良い。スペーサー4の高さ調整を容易に行うために、図3に示すようなリング状高さ調整用スペーサー6を使用する。高さ調整用スペーサー6は、プラスチック等によって製作される。図5に示すように、このスペーサー6を隙間調整用スペーサー4の下部の連結柱2に取り付ければ、連結柱2全体を持ち上げることなく、隙間調整用スペーサー4のみを持ち上げることができる。持ち上げ高さの調整は、スペーサー6の取り付け枚数を調整すれば良い。高さ調整用スペーサー6も、隙間調整用スペーサー4と同様に、複数片(この例では2分割)に分割すれば、連結柱2に容易に取り付けられる。
【0027】
以上説明した例は、既設電柱がコンクリート製の場合であるが、鋼管製電柱であっても良い。
【0028】
なお、この発明によれば、既設電柱1が鋼管製の場合、その途中から既設電柱1を切断し、上部鋼管柱1Bを補修後、再使用することも、あるいは、新たな鋼管柱と交換することもできる。すなわち、図6(A)に示すような鋼管製既設電柱1の途中を、同図(B)に示すように切断し、同図(C)に示すようにその基部1A内に連結柱2を挿入した後、充填材3を基部1Aと連結柱2との間の隙間に充填する。次いで、同図(D)に示すように、基部1Aから突出した連結柱2の上部に隙間調整用スペーサー4を取り付ける。そして、切断し、補修した後の上部鋼管柱1B、あるいは、新たな鋼管柱を隙間調整用スペーサー4に嵌合させる。これにより、鋼管製既設電柱1の上部改修が行える。
【0029】
【発明の効果】
以上説明したように、この発明によれば、以下のような有用な効果がもたらされる。
【0030】
(1)連結柱として一般的な鋼管を使用できるので、工費が削減できる。
(2)連結柱には余分な張り出し部がないので、連結柱を基部に挿入した後、充填材を容易に充填できる。
(3)間隔調整用スペーサーを分割することによって、間隔調整用スペーサーを容易に取り付けることができる。
(4)高さ調整用スペーサーを使用することによって、重量のある連結柱全体を持ち上げずに、間隔調整用スペーサーのみを持ち上げて、間隔調整用スペーサーの高さ調整が行える。
(5)高さ調整用スペーサーを分割することによって、高さ調整用スペーサーを容易に取り付けることができる。
【図面の簡単な説明】
【図1】この発明の電柱改修工法を示す工程図であり、同図(A)は、既設電柱を示す断面図、同図(B)は、既設電柱の切断工程を示す断面図、同図(C)は、既設電柱の基部への連結柱の挿入および充填材の充填工程を示す断面図、同図(D)は、連結柱への隙間調整用スペーサーの取り付け工程を示す部分断面図、同図(E)は、電柱の改修終了工程を示す部分断面図である。この発明の鋼製土留壁を示す部分斜視図である。
【図2】隙間調整用スペーサーを示す斜視図である。
【図3】高さ調整用スペーサーを示す斜視図である。
【図4】隙間調整用スペーサーと新設電柱との間に隙間が生じた場合を示す部分断面図である。
【図5】高さ調整用スペーサーを取り付けた状態を示す部分断面図である。
【図6】この発明の他の実施態様を示す工程図であり、同図(A)は、既設電柱を示す断面図、同図(B)は、既設電柱の切断工程を示す断面図、同図(C)は、既設電柱の基部への連結柱の挿入および充填材の充填工程を示す断面図、同図(D)は、連結柱への隙間調整用スペーサーの取り付け工程を示す部分断面図、同図(E)は、電柱の改修終了工程を示す部分断面図である。
【図7】第1の従来電柱改修工法を示す工程図であり、同図(A)は、既設電柱の切断工程を示す断面図、同図(B)は、充填材の充填工程を示す断面図、同図(C)は、新設電柱の挿入工程を示す断面図、同図(D)は、電柱の改修終了工程を示す断面図である。
【図8】第2の従来電柱改修工法を示す工程図であり、同図(A)は、既設電柱の切断工程を示す断面図、同図(B)は、充填材の充填工程を示す断面図、同図(C)は、連結柱の挿入工程を示す断面図、同図(D)は、充填材の固化による連結柱の固定工程を示す断面図、同図(E)は、新設電柱の連結柱への挿入工程を示す断面図、同図(F)は、電柱の改修終了工程を示す断面図である。
【符号の説明】
1:既設電柱
1A:基部
2:連結柱
3:充填材
4:隙間調整用スペーサー
5:新設電柱
6:高さ調整用スペーサー
11:既設電柱
11A:基部
12:充填材
13:新設電柱
13A:連結柱
13B:新設電柱の下部
14:連結柱
14A:上半部
14B:下半部
14C:上半部の下部
15:新設電柱
[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a utility pole repair method, and more particularly to a utility pole repair method capable of easily, reliably, quickly and inexpensively repairing a utility pole.
[0002]
[Prior art]
For example, a telecommunications pole made of a tapered steel pipe column is particularly susceptible to deterioration at its base. An example of a utility pole repair method for this purpose is disclosed in JP-A-2001-003602 (Patent Document 1).
[0003]
Hereinafter, two conventional utility pole repair methods disclosed in Patent Document 1 will be described with reference to the drawings.
[0004]
FIG. 7 is a process diagram showing a first conventional electric pole repair method, in which FIG. 7A is a cross-sectional view showing a cutting step of an existing electric pole, and FIG. 7B is a cross-sectional view showing a filling step of a filler. FIG. 1C and FIG. 1C are cross-sectional views illustrating a process of inserting a new utility pole, and FIG.
[0005]
7, 11 is an existing electric pole made of a steel pipe column or a concrete column, 11A is a base of the existing electric pole 11 underground, 12 is a filler having a fluidity filled in the base 11A, and 13 is a lower surface. This is a new utility pole made of tapered steel pipe with a steel pipe connecting pole 13A fixed to it. The connecting pillar 13A has an outer diameter that can be inserted into the base 11A with its bottom closed.
[0006]
According to the first conventional utility pole repair method, the utility pole is repaired as follows. As shown in FIG. 7A, first, the existing electric pole 11 is cut with a cutter or the like while leaving its base 11A in the ground (the cutting line is indicated by a chain line). Next, as shown in FIG. 1B, an appropriate amount of filler 12 is filled in the base 11A left in the ground. Next, as shown in FIG. 3C, the connecting pole 13A of the new utility pole 13 is inserted into the base 11A while the filler 12 is not solidified. After the connecting pole 13A is inserted into the base 11A, the filler 12 can be filled. However, as will be described later, the lower part 13B of the new electric pole 13 projecting from the connecting pole 13A becomes an obstacle, and it is difficult to fill. Then, when the filler 12 is solidified, the new electric pole 13 is fixed on the base 11A, as shown in FIG.
[0007]
Next, a second conventional utility pole repair method will be described with reference to the drawings.
[0008]
8A and 8B are process diagrams showing a second conventional electric pole repair method, in which FIG. 8A is a cross-sectional view showing a cutting step of an existing electric pole, and FIG. 8B is a cross-sectional view showing a filling step of a filler. FIG. 2C is a cross-sectional view showing a connecting pole insertion step, FIG. 2D is a cross-sectional view showing a connecting pole fixing step by solidification of a filler, and FIG. 2E is a new electric pole. (F) is a cross-sectional view showing a step of completing the repair of the utility pole.
[0009]
In FIG. 8, reference numeral 11 denotes an existing power pole made of a steel pipe pole, 11A denotes a base of the existing power pole 11 underground, 12 denotes a filler such as cement filled in the base 11A, and 14 denotes a connection pipe made of steel pipe. There is a tapered upper half 14A and a lower half 14B fixed to the bottom of the upper half 14A. The upper half portion 14A is formed in a tapered shape so as to be fitted to a new utility pole described later, and the lower half portion 14B is closed at the bottom and has an outer diameter that can be inserted into the base 11A. Reference numeral 15 denotes a newly installed power pole made of a tapered steel pipe into which the upper half portion 14A of the connecting pole 14 is fitted.
[0010]
According to the second conventional utility pole repair method, the utility pole is repaired as follows. As shown in FIG. 8A, first, the existing electric pole 11 is cut with a cutter or the like while leaving its base 11A in the ground (the cutting line is indicated by a chain line). Next, as shown in FIG. 2B, the base material 11A left in the ground is filled with the filler 12. Next, as shown in FIG. 4C, the lower half portion 14B of the connecting column 14 is inserted into the base 11A while the filler 12 is not solidified. After the lower half 14B of the connecting post 14 is inserted into the base 11A, the filler 12 can be filled, but as will be described later, the lower portion of the upper half 14A of the connecting post 14 projecting from the lower half 14B. 14C is in the way and difficult to fill. When the filler 12 is solidified, the connecting pillar 14 is fixed to the base 11A as shown in FIG. Then, as shown in FIG. 3E, the new utility pole 15 is fitted to the upper half 14A of the connecting pole 14. In this way, the repair of the utility pole is completed as shown in FIG.
[0011]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2001-003602
[Problems to be solved by the invention]
As described above, according to the conventional telephone pole repair method, the telephone pole can be surely repaired. However, the first telephone pole repair method has the following problems.
[0013]
(1) Since it is necessary to manufacture a new power pole 13 in which the connecting pole 13A is integrally fixed to the lower surface thereof, this manufacturing is troublesome and costly.
(2) As shown in FIG. 7 (C), before the filler 12 is solidified, the connecting pole 13A of the new utility pole 13 is inserted into the base 11A. If the amount of the filler 12 is insufficient, Further, the filler 12 must be filled. However, since this filling operation is performed while hanging the new electric pole 13, it takes time and labor.
(3) In addition, since the lower part 13B of the newly installed electric pole 13 projecting from the connecting pole 13A becomes an obstacle, it is difficult to perform the filling operation.
[0014]
The second telephone pole repair method had the following problems.
[0015]
(1) It takes time and effort to manufacture the connecting column 4 composed of the tapered upper half portion 14A and the cylindrical lower half portion 14B, resulting in an increase in cost.
(2) As shown in FIGS. 8C and 8D, the lower half 14B of the connecting column 14 is inserted into the base 11A before the filler 12 is solidified, but the amount of the filler 12 is insufficient. In this case, the filler 12 must be further filled. However, since this filling operation is performed while suspending the connecting column 14, it takes time and labor.
(3) In addition, since the lower part 14C of the upper half part 14A that protrudes from the lower half part 14B of the connecting pillar 14 becomes an obstacle, it is difficult to perform the filling operation.
(4) After fitting the upper half 14A of the connecting pole 14 to the new utility pole 15, if there is a gap between them, the height of the connecting pole 14 must be adjusted. Speed is required because the heavy connecting posts 14 need to be lifted as a whole and must be done before the filler 12 solidifies.
[0016]
Accordingly, an object of the present invention is to provide a utility pole repair method capable of easily, reliably, quickly and inexpensively repairing utility poles.
[0017]
[Means for Solving the Problems]
The invention according to claim 1 cuts the existing hollow electric pole while leaving its base, and then inserts a connecting pole having a length protruding from the base into the base, and then inserts the base and the connecting pole. A gap is filled with a filler, and then a spacer for adjusting a gap whose outer peripheral surface is formed in a tapered shape is attached to the connection pillar protruding from the base, and the lower part of the tapered hollow newly installed power pole is sealed with the gap. It is characterized in that it is fitted into the connecting pole via an adjusting spacer, and thus the new electric pole is constructed on the base.
[0018]
The invention according to claim 2 is characterized in that the connecting column is made of a circular steel pipe.
[0019]
The invention according to claim 3 is characterized in that the gap adjusting spacer is divided into a plurality of pieces.
[0020]
The height of the height of the gap adjusting spacer may be adjusted below the gap adjusting spacer before the newly installed utility pole is fitted to the connecting member via the gap adjusting spacer. It is characterized in that the spacer for adjusting the height is attached.
[0021]
The invention according to claim 5 is characterized in that the height adjusting spacer is divided into a plurality of pieces.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the utility pole repair method of the present invention will be described with reference to the drawings.
[0023]
FIG. 1 is a process diagram showing a utility pole repair method according to the present invention. FIG. 1 (A) is a sectional view showing an existing utility pole, and FIG. 1 (B) is a sectional view showing a cutting process of the existing utility pole. (C) is a cross-sectional view showing a process of inserting the connecting pole into the base of the existing power pole and filling the filler, and FIG. (D) is a partial cross-sectional view showing a process of attaching the gap adjusting spacer to the connecting pole. FIG. 7E is a partial cross-sectional view showing a step of finishing the repair of the utility pole.
[0024]
In FIG. 1, reference numeral 1 denotes an existing concrete power pole, 1 A denotes a base of the existing power pole 1 underground, 2 denotes a steel pipe connecting pole inserted into the base 1 A, and has a length protruding above the base 1 A. And the bottom is closed (may not be closed). Reference numeral 3 denotes a filler such as sand or cement mortar which fills a gap between the base 1A and the connecting column 2, and 4 denotes a half-split cylindrical gap adjusting spacer attached to an upper portion of the connecting column 2 protruding from the base 1A. is there. The gap adjusting spacer 4 is made of plastic or the like, and has an outer peripheral surface formed in a tapered shape so as to be fitted into a new electric pole 5 described later. As shown in FIG. 2, the gap adjusting spacer 4 is divided into a plurality of pieces (in this example, divided into two pieces), so that the spacer 4 can be easily attached to the connecting column 2. Reference numeral 5 denotes a newly installed utility pole made of a tapered steel pipe fitted to the gap adjusting spacer 4.
[0025]
According to the present invention, the utility pole is repaired as follows. The existing electric pole 1 of FIG. 1A is cut with a cutter or the like as shown in FIG. Next, as shown in FIG. 2C, after the connecting column 2 is inserted into the base 1A, the gap between the base 1A and the connecting column 2 is filled with the filler 3. This filling operation can be easily performed because the connecting column 2 has no overhang as in the above-described conventional method. Next, as shown in FIG. 2D, a gap adjusting spacer 4 is attached to the upper part of the connecting column 2. The spacer 4 can be easily attached from the lateral direction of the connecting column 2 because the spacer 4 is divided. When the gap adjusting spacer 4 is attached in this manner, the lower part of the newly installed utility pole 5 is fitted to the connecting pole 2 via the gap adjusting spacer 4 as shown in FIG. This completes the repair of the utility pole.
[0026]
After the new electric pole 5 is fitted to the gap adjusting spacer 4, as shown in FIG. 4, when a gap is formed between the spacer 4 and the new electric pole 5, the spacer 4 may be lifted. In order to easily adjust the height of the spacer 4, a ring-shaped height adjusting spacer 6 as shown in FIG. 3 is used. The height adjusting spacer 6 is made of plastic or the like. As shown in FIG. 5, if this spacer 6 is attached to the connecting column 2 below the gap adjusting spacer 4, only the gap adjusting spacer 4 can be lifted without lifting the entire connecting column 2. The lifting height may be adjusted by adjusting the number of spacers 6 to be attached. Similarly to the gap adjusting spacer 4, the height adjusting spacer 6 can be easily attached to the connecting column 2 by being divided into a plurality of pieces (in this example, divided into two).
[0027]
The example described above is a case where the existing power pole is made of concrete, but may be a steel pipe power pole.
[0028]
According to the present invention, when the existing power pole 1 is made of a steel pipe, the existing power pole 1 is cut from the middle thereof, and after repairing the upper steel pipe pillar 1B, it can be reused or replaced with a new steel pipe pillar. You can also. That is, the middle of the existing steel pole 1 made of steel pipe as shown in FIG. 6 (A) is cut as shown in FIG. 6 (B), and the connecting pole 2 is inserted into the base 1A as shown in FIG. 6 (C). After insertion, the gap between the base 1A and the connecting column 2 is filled with the filler 3. Next, as shown in FIG. 4D, a gap adjusting spacer 4 is attached to the upper part of the connecting column 2 protruding from the base 1A. Then, the upper steel column 1B after cutting and repairing or a new steel column is fitted to the gap adjusting spacer 4. As a result, the upper part of the existing steel pole 1 can be repaired.
[0029]
【The invention's effect】
As described above, according to the present invention, the following useful effects are provided.
[0030]
(1) Since a general steel pipe can be used as the connecting column, the construction cost can be reduced.
(2) Since the connecting pillar has no extra protrusion, the filler can be easily filled after the connecting pillar is inserted into the base.
(3) By dividing the spacing adjusting spacer, the spacing adjusting spacer can be easily attached.
(4) By using the spacer for height adjustment, the height of the spacer for distance adjustment can be adjusted by lifting only the spacer for distance adjustment without lifting the entire heavy connection column.
(5) By dividing the height adjusting spacer, the height adjusting spacer can be easily attached.
[Brief description of the drawings]
FIG. 1 is a process diagram showing a utility pole repair method according to the present invention, wherein FIG. 1A is a sectional view showing an existing utility pole, and FIG. 1B is a sectional view showing a cutting process of the existing utility pole; (C) is a cross-sectional view showing a process of inserting the connecting pole into the base of the existing power pole and filling the filler, and FIG. (D) is a partial cross-sectional view showing a process of attaching the gap adjusting spacer to the connecting pole. FIG. 7E is a partial cross-sectional view showing a step of finishing the repair of the utility pole. It is a partial perspective view showing the steel earth retaining wall of this invention.
FIG. 2 is a perspective view showing a gap adjusting spacer.
FIG. 3 is a perspective view showing a height adjusting spacer.
FIG. 4 is a partial cross-sectional view showing a case where a gap is generated between a gap adjusting spacer and a newly installed utility pole.
FIG. 5 is a partial sectional view showing a state where a height adjusting spacer is attached.
FIGS. 6A and 6B are process diagrams showing another embodiment of the present invention, wherein FIG. 6A is a sectional view showing an existing electric pole, and FIG. 6B is a sectional view showing a cutting step of the existing electric pole. FIG. 2C is a cross-sectional view showing a process of inserting a connecting pole into a base of an existing power pole and filling a filler, and FIG. 2D is a partial cross-sectional view showing a process of attaching a gap adjusting spacer to the connecting pole. (E) is a partial cross-sectional view showing a repairing step of the utility pole.
7A and 7B are process diagrams showing a first conventional electric pole repair method, in which FIG. 7A is a cross-sectional view showing a cutting step of an existing electric pole, and FIG. 7B is a cross-sectional view showing a filling step of a filler. FIG. 1C and FIG. 1C are cross-sectional views illustrating a process of inserting a new utility pole, and FIG.
FIG. 8 is a process diagram showing a second conventional electric pole repair method, in which FIG. 8A is a cross-sectional view showing a cutting step of an existing electric pole, and FIG. 8B is a cross-sectional view showing a filling step of a filler. FIG. 2C is a cross-sectional view showing a connecting pole insertion step, FIG. 2D is a cross-sectional view showing a connecting pole fixing step by solidification of a filler, and FIG. 2E is a new electric pole. (F) is a cross-sectional view showing a step of completing the repair of the utility pole.
[Explanation of symbols]
1: Existing electric pole 1A: Base 2: Connecting pole 3: Filler 4: Spacer 5 for adjusting gap: New electric pole 6: Height adjusting spacer 11: Existing electric pole 11A: Base 12: Filler 13: New electric pole 13A: Connected Pillar 13B: Lower part 14 of new electric pole: Connecting pole 14A: Upper half 14B: Lower half 14C: Lower part of upper half 15: New electric pole

Claims (5)

中空既設電柱をその基部を残して切断し、次いで、前記基部内に、前記基部から突出する長さを有する連結柱を挿入し、次いで、前記基部と前記連結柱との隙間に充填材を充填し、次いで、前記基部から突出した前記連結柱に、外周面がテーパー状に形成された隙間調整用スペーサーを取り付け、そして、テーパー状中空新設電柱の下部を前記隙間調整用スペーサーを介して前記連結柱に嵌め込み、かくして、前記基部上に前記新設電柱を構築することを特徴とする電柱改修工法。The hollow existing power pole is cut leaving its base, and then a connecting pole having a length protruding from the base is inserted into the base, and then a gap between the base and the connecting pole is filled with a filler. Then, a gap adjusting spacer having an outer peripheral surface formed in a tapered shape is attached to the connecting column protruding from the base, and the lower portion of the newly formed tapered hollow electric pole is connected to the connecting column via the gap adjusting spacer. A utility pole repair method, wherein the new utility pole is fitted on a pole, and thus the new utility pole is constructed on the base. 前記連結柱は、鋼管からなることを特徴とする、請求項1に記載の電柱改修工法。The method according to claim 1, wherein the connecting pole is made of a steel pipe. 前記隙間調整用スペーサーは、複数片に分割されていることを特徴とする、請求項1または2に記載の電柱改修工法。The utility pole repair method according to claim 1, wherein the gap adjusting spacer is divided into a plurality of pieces. 前記新設電柱を前記隙間調整用スペーサーを介して前記連結部材に嵌め込む前に、前記隙間調整用スペーサーの下部に前記隙間調整用スペーサーの高さを調整する高さ調整用スペーサーを取り付けることを特徴とする、請求項1から3の何れか1つに記載された電柱改修工法。Before fitting the new electric pole into the connecting member via the gap adjusting spacer, a height adjusting spacer for adjusting the height of the gap adjusting spacer is attached to a lower portion of the gap adjusting spacer. The utility pole repair method according to any one of claims 1 to 3. 前記高さ調整用スペーサーは、複数片に分割されていることを特徴とする、請求項1から4の何れか1つに記載された電柱改修工法。The utility pole repair method according to any one of claims 1 to 4, wherein the height adjusting spacer is divided into a plurality of pieces.
JP2003088899A 2003-03-27 2003-03-27 Telephone pole repair method Expired - Fee Related JP3973589B2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100768524B1 (en) * 2006-05-23 2007-10-18 최승일 Installation structure of road facility post and construction method
JP2011226058A (en) * 2010-04-15 2011-11-10 Sekisui Jushi Co Ltd Method for repairing column
US8109057B2 (en) 2008-03-03 2012-02-07 Daniel Stark Tower foundation system
WO2016032041A1 (en) * 2014-08-29 2016-03-03 주식회사 포스코 Form structure of precast segment structure and construction method thereof
WO2025004308A1 (en) * 2023-06-30 2025-01-02 日本電信電話株式会社 Pole reinforcement method
WO2025248585A1 (en) * 2024-05-27 2025-12-04 Ntt株式会社 Pole reinforcement method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100768524B1 (en) * 2006-05-23 2007-10-18 최승일 Installation structure of road facility post and construction method
US8109057B2 (en) 2008-03-03 2012-02-07 Daniel Stark Tower foundation system
JP2011226058A (en) * 2010-04-15 2011-11-10 Sekisui Jushi Co Ltd Method for repairing column
WO2016032041A1 (en) * 2014-08-29 2016-03-03 주식회사 포스코 Form structure of precast segment structure and construction method thereof
KR20160027475A (en) * 2014-08-29 2016-03-10 주식회사 포스코 Concrete form of precast segment structure and method of the same
KR101696028B1 (en) * 2014-08-29 2017-01-13 주식회사 포스코 Concrete form of precast segment structure and method of the same
WO2025004308A1 (en) * 2023-06-30 2025-01-02 日本電信電話株式会社 Pole reinforcement method
WO2025248585A1 (en) * 2024-05-27 2025-12-04 Ntt株式会社 Pole reinforcement method

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