JPS6220354B2 - - Google Patents

Info

Publication number
JPS6220354B2
JPS6220354B2 JP17057481A JP17057481A JPS6220354B2 JP S6220354 B2 JPS6220354 B2 JP S6220354B2 JP 17057481 A JP17057481 A JP 17057481A JP 17057481 A JP17057481 A JP 17057481A JP S6220354 B2 JPS6220354 B2 JP S6220354B2
Authority
JP
Japan
Prior art keywords
bit
expanding
telescopic pipe
excavation
lifting
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.)
Expired
Application number
JP17057481A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5873684A (ja
Inventor
Akira Oohashi
Takashi Matsuo
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.)
Konoike Construction Co Ltd
Original Assignee
Konoike Construction Co Ltd
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 Konoike Construction Co Ltd filed Critical Konoike Construction Co Ltd
Priority to JP17057481A priority Critical patent/JPS5873684A/ja
Publication of JPS5873684A publication Critical patent/JPS5873684A/ja
Publication of JPS6220354B2 publication Critical patent/JPS6220354B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP17057481A 1981-10-24 1981-10-24 拡底杭孔の掘削装置 Granted JPS5873684A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17057481A JPS5873684A (ja) 1981-10-24 1981-10-24 拡底杭孔の掘削装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17057481A JPS5873684A (ja) 1981-10-24 1981-10-24 拡底杭孔の掘削装置

Publications (2)

Publication Number Publication Date
JPS5873684A JPS5873684A (ja) 1983-05-02
JPS6220354B2 true JPS6220354B2 (enExample) 1987-05-06

Family

ID=15907353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17057481A Granted JPS5873684A (ja) 1981-10-24 1981-10-24 拡底杭孔の掘削装置

Country Status (1)

Country Link
JP (1) JPS5873684A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006219911A (ja) * 2005-02-10 2006-08-24 Ohbayashi Corp 場所打ちコンクリート杭の杭坑拡幅装置及び方法

Also Published As

Publication number Publication date
JPS5873684A (ja) 1983-05-02

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