US20240352759A1 - Pole installation method - Google Patents

Pole installation method Download PDF

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Publication number
US20240352759A1
US20240352759A1 US18/683,748 US202118683748A US2024352759A1 US 20240352759 A1 US20240352759 A1 US 20240352759A1 US 202118683748 A US202118683748 A US 202118683748A US 2024352759 A1 US2024352759 A1 US 2024352759A1
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US
United States
Prior art keywords
edge
pole
utility pole
ground
end portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US18/683,748
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English (en)
Inventor
Tatsuya MOKI
Yoshiyasu Sato
Wataru Kokubo
Hidenobu HIROTA
Kenji Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION reassignment NIPPON TELEGRAPH AND TELEPHONE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KOKUBO, WATARU, INOUE, KENJI, MOKI, Tatsuya, SATO, YOSHIYASU, HIROTA, Hidenobu
Publication of US20240352759A1 publication Critical patent/US20240352759A1/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2253—Mounting poles or posts to the holder
    • E04H12/2269—Mounting poles or posts to the holder in a socket
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
    • E04H12/345—Arrangements for tilting up whole structures or sections thereof

Definitions

  • the present disclosure relates to a pole erection method for erecting a pole such as a utility pole installed outdoors on the ground.
  • Utility poles installed outdoors are used to support communication cables of communication companies and to support cables for power transmission and power distribution of power companies. It is said that the number of utility poles installed in Japan is 33 million or more when communication companies, power companies, railway companies, traffic signals, and the like are combined. Further, about 50,000 to 100, 000 are being newly erected and increased every year.
  • Non Patent Literature 2 (Limited Company) IMAKEN Homepage Dakase pole sekou houhou (in Japanese) (DAKASE POLE CONSTRUCTION METHOD), http://www.nichiden-group.co.jp/imaken/dakase/dakase0002.htm (retrieved on Jun. 10, 2021)
  • Construction work may involve a construction environment in which a work space for a heavy machine such as a digging and pole erection vehicle can be secured in the vicinity of a construction site without restriction due to a road width and obstacles, or a construction environment in which a work space of a heavy machine cannot be secured in the vicinity of a construction site due to restriction of a road width and an obstacle and construction must be performed by human power.
  • a heavy machine such as a digging and pole erection vehicle
  • a construction environment in which a work space of a heavy machine cannot be secured in the vicinity of a construction site due to restriction of a road width and an obstacle and construction must be performed by human power.
  • FIG. 1 is a diagram illustrating a work procedure of utility pole erection work in a construction environment in which a heavy machine can be used.
  • STEP 1 in FIG. 1 is a process of determining a position A where a new utility pole 10 a is to be built. After positioning, an operator 13 may break up the pavement as necessary to expose the ground 50 .
  • a reference numeral 10 denotes an existing utility pole.
  • STEP 2 in FIG. 1 is a process in which operators 13 carefully manually drill at the position A on the ground 50 to a depth of about 1.5 m (prospecting) in order to avoid damaging buried objects such as electricity, gas, or water pipes by mistake during the pole erection work.
  • a reference numeral 55 denotes a prospected hole.
  • STEP 3 in FIG. 1 is a process of drilling a hole 55 to a depth necessary to erect the new utility pole 10 a with a heavy machine 15 such as a digging and pole erection vehicle when there is no risk of buried object damage in the previous process.
  • STEP 4 in FIG. 1 is a process of lifting up the utility pole 10 a with a heavy machine 15 such as a crane in order to insert the utility pole 10 a into a hole 57 drilled in the previous process.
  • a heavy machine 15 such as a crane
  • an operator 13 puts the utility pole 10 a into the hole 57 and erects the utility pole 10 a while supporting the utility pole 10 a with a rope such that the hanging utility pole 10 a does not swing.
  • STEP 5 in FIG. 1 is a process in which the operator 13 compacts the soil while filling the hole 57 and fixes the erected utility pole 10 a to the ground 50 .
  • FIG. 2 is a diagram for describing a procedure of construction for erecting a utility pole by human power without using a heavy machine.
  • STEP 1 in FIG. 2 is the same process as STEP 1 in FIG. 1 .
  • STEP 2 in FIG. 2 is a process in which the operator 13 manually drills the hole 55 prospected in the exposed ground 50 in the same manner as STEP 2 in FIG. 1 to a depth necessary to erect the utility pole 10 a.
  • a reference numeral 58 denotes a hole formed by drilling the hole 55 .
  • (a) and (b) of STEP 2 are a cross-sectional view of the shape of the hole 58 perpendicular to the ground surface and a top view seen from the ground surface, respectively.
  • the hole 58 is drilled obliquely with respect to a main hole 58 a drilled vertically to provide a sliding slope 58 b.
  • the hole 58 needs to be excavated to be wider than in the case of using the heavy machine described in FIG. 1 .
  • STEP 3 in FIG. 2 is a process of putting a utility pole 10 a into the drilled hole 58 and erecting the utility pole.
  • the backing plate 56 is placed in the hole 58 .
  • the operator 13 supports the utility pole 10 a with a rope 14 as an assistant such that the utility pole 10 a does not swing, and a plurality of operators 13 lift the utility pole 10 a with their hands and gradually raise the utility pole 10 a while bracing against the sliding slope 58 b and pressing the utility pole 10 a against the backing plate 56 .
  • the number of necessary operators 13 varies depending on the length and weight of the utility pole 10 a to be erected, and a longer and heavier one requires a larger number of operators 13 .
  • STEP 4 in FIG. 2 is the same process as STEP 5 in FIG. 1 .
  • an object of the present invention is to provide a pole erection method capable of efficiently and safely erecting a utility pole with a small number of operators even in a construction environment in which heavy machines cannot be used.
  • a pole erection method inserts a structure having a specific shape into a drilled hole to erect a pole.
  • a pole erection method including:
  • the structure has functions corresponding to a conventional backing plate and sliding slope. Therefore, the size of a hole to be excavated can be set to about the diameter of the structure, and the utility pole is erected using the weight of the utility pole with the other part of the edge as a fulcrum, and thus pole erection work can be efficiently performed with a small number of people. Furthermore, since the utility pole settles on the other part of the edge due to the shape of the structure, the amount of shaking of the utility pole is small, and there is little risk that the utility pole will collide with the surroundings such as a house, a passerby, and the like, or operators themselves.
  • the present invention can provide a pole erection method capable of efficiently and safely erecting a utility pole with a small number of operators even in a construction environment in which heavy machines cannot be used.
  • Examples of the structure include the following shapes.
  • An edge of the other end of the structure has a shape including a cut surface obtained by linearly and obliquely cutting the structure with respect to a central axis.
  • An edge of the other end of the structure has a shape including a cut surface obtained by obliquely cutting the structure in a curved shape with respect to a central axis.
  • the edge of the other end of the structure has a stepped shape including the part of the edge and the other part of the edge.
  • the other part of the edge has a wedge-shaped notch in the central portion.
  • the part of the edge has a constant height.
  • the present invention can provide a pole erection method capable of efficiently and safely erecting a utility pole with a small number of operators even in a construction environment in which heavy machines cannot be used.
  • FIG. 1 is a diagram illustrating a pole erection method using a heavy machine.
  • FIG. 2 is a diagram illustrating a pole erection method using human power.
  • FIG. 3 is a diagram illustrating a structure used in a pole erection method according to the present invention.
  • FIG. 4 is a diagram illustrating a structure used in the pole erection method according to the present invention.
  • FIG. 5 is a diagram illustrating the pole erection method according to the present invention.
  • FIG. 6 is a diagram illustrating the pole erection method according to the present invention.
  • FIG. 7 is a diagram illustrating the pole erection method according to the present invention.
  • FIG. 8 is a diagram illustrating the pole erection method according to the present invention.
  • FIG. 9 is a diagram illustrating a structure used in the pole erection method according to the present invention.
  • FIG. 10 is a diagram illustrating a structure used in the pole erection method according to the present invention.
  • FIG. 11 is a diagram illustrating a structure used in the pole erection method according to the present invention.
  • FIG. 7 is a flowchart illustrating a pole erection method of the present embodiment.
  • the pole erection method of the present embodiment includes:
  • FIGS. 3 and 4 are diagrams illustrating an example of the structure 60 .
  • FIG. 3 is a perspective view of structure 60
  • FIG. 4 is a three-face view of the structure 60
  • (A) is a top view
  • (B) is a front view
  • (C) is a side view.
  • the structure 60 is a cylindrical object having a hollow center.
  • the structure 60 has a height difference such that, when it is erected perpendicularly to the ground with one end 60 a facing down, the part of the edge 61 a at the other end 60 b is higher than the other part of the edge 61 b.
  • the part of the edge 61 a and the other part of the edge 61 b are at diagonal positions.
  • the edge of the other end 60 b of the structure 60 of the present embodiment has a shape including a cut surface obtained by obliquely cutting the structure 60 in a curved shape with respect to a central axis.
  • the part of the edge 61 a and the other part of the edge 61 b are connected by a gentle curve. This has an effect that when a utility pole which will be described later is placed on the other end 60 b, the utility pole slides and settles on the other part of the edge 61 b by the weight thereof. Note that, as illustrated in FIG.
  • the structure 60 be bilaterally symmetrical with respect to a plane defined by the central axis of the structure 60 and a straight line X-X′.
  • the one having a higher height difference has a constant surface for replacement of a backing plate.
  • the part of the edge 61 a has a constant height in the circumferential direction, and maintains the area of the inner wall 62 to some extent. This is for the purpose of providing a function of a backing plate for pressing the lower end portion 10 a - 1 against the inner wall 62 .
  • a pole erection method of the present embodiment will be described in detail with reference to FIG. 8 .
  • FIGS. 8 ( 1 ) and 8 ( 2 ) illustrate the same processes as STEP 1 and STEP 2 in FIG. 1 .
  • a reference numeral 59 denotes a hole drilled by an operator 13 in a prospected hole 55 .
  • the structure 60 has functions of a backing plate 56 and a sliding slope 8 b, and thus the amount of excavation of the hole 59 corresponds to only the cylindrical structure 60 .
  • FIG. 8 ( 3 ) corresponds to steps S 01 and S 02 in FIG. 7 and is a process of preparing the structure 60 and burying the structure in the hole 59 .
  • a part of the structure 60 on the side of one end 60 a is buried. That is, the other end 60 b of the structure 60 protrudes to the ground surface.
  • the structure 60 serves as a base of the utility pole 10 a.
  • FIG. 8 ( 4 ) corresponds to step S 03 in FIG. 7 and is a process of placing the lower end portion 10 a - 1 of the utility pole 10 a on the other part of the edge 60 b of the structure 60 .
  • FIG. 5 is a diagram illustrating this state in detail. Since the other end 60 b of the structure 60 is constituted by the part of the edge 61 a and the other part of the edge 61 b having different heights, and the edges are connected by a gentle curve, when the lower end portion 10 a - 1 of the utility pole 10 a is placed on the structure 60 , the utility pole 10 a slides and settles on the other part of the edge 61 b by the weight thereof.
  • FIG. 8 ( 5 ) corresponds to step S 04 in FIG. 7 , in which the operator 13 lifts up the upper end portion 10 a - 2 of the utility pole 10 and presses the lower end portion 10 a - 1 against the inner wall 62 on the side of the part of the edge 61 a of the structure 60 .
  • FIGS. 8 ( 6 ) and 8 ( 7 ) correspond to step S 05 in FIG. 7 .
  • the operator 13 approaches the structure 60 while pressing the lower end portion 10 a - 1 of the utility pole 10 a against the inner wall 62 , and raises the upper end portion 10 a - 2 of the utility pole 10 a with the other part of the edge 61 b as a fulcrum.
  • the utility pole 10 a rises up to a certain angle with respect to the ground 50
  • the lower end portion 10 a - 1 slides down into the cavity 63 of the structure 60 by the weight thereof and thus the utility pole 10 a can be erected (refer to FIGS. 8 ( 7 ) and FIG. 6 ).
  • the structure 60 it is not necessary to excavate the hole 58 having a large area for installing the sliding slope or the backing plate described with reference to FIG. 2 when the utility pole 10 a is erected by human power. That is, efficient pole erection can be performed by using the structure 60 . Furthermore, since the structure 60 supports the utility pole 10 a and supports construction, labor of the operator 13 can be reduced and safe work can be realized with a small number of people. When the material of the utility pole is lightweight such as plastic, even one operator can erect the pole.
  • FIGS. 9 to 11 are three-face views illustrating shapes of the structure 60 .
  • (A) is a top view
  • (B) is a front view
  • (C) is a side view.
  • the edge of the other end 60 b of the structure 60 in FIG. 9 has a shape including a cut surface obtained by linearly and obliquely cutting the structure 60 with respect to the central axis.
  • the structure 60 in this figure has a shape like a bamboo cut at an angle.
  • the positions of the part of the edge 61 a, the other part of the edge 61 b, and the inner wall 62 are not clear, but when the structure 60 is erected on the ground with one end 60 a facing down, a region including the highest portion of the other end 60 b is the part of the edge 61 a, and a region including the lowest portion of the other end 60 b is the other part of the edge 61 b.
  • an inner wall portion under the part of the edge 61 a viewed from the front is the inner wall 62 .
  • the edge of the other end 60 b of the structure 60 in FIG. 10 has a stepped shape including the part of the edge 61 a and the other part of the edge 61 b.
  • the part of the edge 61 a and the other part of the edge 61 b having a height difference therebetween are horizontal with respect to the ground, and the edge between the part of the edge 61 a and the other part of the edge 61 b is vertical with respect to the ground.
  • the structure 60 in FIG. 10 may have a wedge-shaped notch 61 c at the central portion of the other part of the edge 61 b.
  • the structure 60 of any of the three types of shapes described herein may be used in the same procedure as in FIG. 8 as an efficient pole erection method.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Cable Installation (AREA)
US18/683,748 2021-08-23 2021-08-23 Pole installation method Pending US20240352759A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/030853 WO2023026334A1 (ja) 2021-08-23 2021-08-23 建柱方法

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Application Number Title Priority Date Filing Date
US18/683,748 Pending US20240352759A1 (en) 2021-08-23 2021-08-23 Pole installation method

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US (1) US20240352759A1 (https=)
JP (1) JP7673812B2 (https=)
WO (1) WO2023026334A1 (https=)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0722452Y2 (ja) * 1988-04-08 1995-05-24 日本電信電話株式会社 台棒式建柱工具
US5281067A (en) * 1992-09-10 1994-01-25 Houston Industries Incorporated Pole installation guide
JPH1051919A (ja) * 1996-08-05 1998-02-20 Sanko:Kk ポール立設装置
JP3065249U (ja) * 1999-06-25 2000-02-02 有限会社松本電気 建柱補助具
JP7333955B2 (ja) * 2019-12-10 2023-08-28 有限会社大竹重機建設 柱状工作物の建柱方法

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WO2023026334A1 (ja) 2023-03-02
JPWO2023026334A1 (https=) 2023-03-02

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