JPS6414472A - Method of overhauling construction of cylindrical concrete structure - Google Patents

Method of overhauling construction of cylindrical concrete structure

Info

Publication number
JPS6414472A
JPS6414472A JP16788787A JP16788787A JPS6414472A JP S6414472 A JPS6414472 A JP S6414472A JP 16788787 A JP16788787 A JP 16788787A JP 16788787 A JP16788787 A JP 16788787A JP S6414472 A JPS6414472 A JP S6414472A
Authority
JP
Japan
Prior art keywords
cutting edge
edge body
concrete structure
cylindrical concrete
diameter
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.)
Granted
Application number
JP16788787A
Other languages
Japanese (ja)
Other versions
JPH0512507B2 (en
Inventor
Kazuo Sasaki
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.)
Obayashi Corp
Original Assignee
Obayashi 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 Obayashi Corp filed Critical Obayashi Corp
Priority to JP16788787A priority Critical patent/JPS6414472A/en
Publication of JPS6414472A publication Critical patent/JPS6414472A/en
Publication of JPH0512507B2 publication Critical patent/JPH0512507B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Working Measures On Existing Buildindgs (AREA)

Abstract

PURPOSE: To enable disassembly work to be implemented safely and economically by making a plumb bob pendent from a rod loosely drop on the central axis of a funnel-shaped cutting edge body put on an opening of a cylindrical concrete structure opened by its upper end. CONSTITUTION: A funnel-shaped cutting edge body 12 having a larger outer diameter than the maximum diameter of a structure 10 is placed on an opening end of the hollow cylindrical concrete structure 10. Next, a plumb bob being fitted loosely in a rod 18 is pendent from a central axis of the cutting edge body 12 by being wound up by a winch 28 via sheaves 24, 26. In addition, by the use of a diameter expanding jack 16, the cutting edge body 12 is opened in diameter, an then the winch 28 is released in order to permit the plumb bob 22 to fall down and thereby the structure 10 is broken at once.
JP16788787A 1987-07-07 1987-07-07 Method of overhauling construction of cylindrical concrete structure Granted JPS6414472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16788787A JPS6414472A (en) 1987-07-07 1987-07-07 Method of overhauling construction of cylindrical concrete structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16788787A JPS6414472A (en) 1987-07-07 1987-07-07 Method of overhauling construction of cylindrical concrete structure

Publications (2)

Publication Number Publication Date
JPS6414472A true JPS6414472A (en) 1989-01-18
JPH0512507B2 JPH0512507B2 (en) 1993-02-18

Family

ID=15857913

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16788787A Granted JPS6414472A (en) 1987-07-07 1987-07-07 Method of overhauling construction of cylindrical concrete structure

Country Status (1)

Country Link
JP (1) JPS6414472A (en)

Also Published As

Publication number Publication date
JPH0512507B2 (en) 1993-02-18

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