JPS6122118B2 - - Google Patents

Info

Publication number
JPS6122118B2
JPS6122118B2 JP10822779A JP10822779A JPS6122118B2 JP S6122118 B2 JPS6122118 B2 JP S6122118B2 JP 10822779 A JP10822779 A JP 10822779A JP 10822779 A JP10822779 A JP 10822779A JP S6122118 B2 JPS6122118 B2 JP S6122118B2
Authority
JP
Japan
Prior art keywords
hole
diameter pipe
small diameter
pipe
earth auger
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
JP10822779A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5631995A (en
Inventor
Nobuo Myajima
Kyokatsu Hara
Yasuo Sasaki
Hisashi Hasegawa
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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 Steel Corp filed Critical Nippon Steel Corp
Priority to JP10822779A priority Critical patent/JPS5631995A/ja
Publication of JPS5631995A publication Critical patent/JPS5631995A/ja
Publication of JPS6122118B2 publication Critical patent/JPS6122118B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP10822779A 1979-08-27 1979-08-27 Method of inserting largeediameter pipe while expanding curved smallldiameter hole Granted JPS5631995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10822779A JPS5631995A (en) 1979-08-27 1979-08-27 Method of inserting largeediameter pipe while expanding curved smallldiameter hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10822779A JPS5631995A (en) 1979-08-27 1979-08-27 Method of inserting largeediameter pipe while expanding curved smallldiameter hole

Publications (2)

Publication Number Publication Date
JPS5631995A JPS5631995A (en) 1981-03-31
JPS6122118B2 true JPS6122118B2 (enrdf_load_stackoverflow) 1986-05-30

Family

ID=14479266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10822779A Granted JPS5631995A (en) 1979-08-27 1979-08-27 Method of inserting largeediameter pipe while expanding curved smallldiameter hole

Country Status (1)

Country Link
JP (1) JPS5631995A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS5631995A (en) 1981-03-31

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