JPS6128080B2 - - Google Patents

Info

Publication number
JPS6128080B2
JPS6128080B2 JP14485880A JP14485880A JPS6128080B2 JP S6128080 B2 JPS6128080 B2 JP S6128080B2 JP 14485880 A JP14485880 A JP 14485880A JP 14485880 A JP14485880 A JP 14485880A JP S6128080 B2 JPS6128080 B2 JP S6128080B2
Authority
JP
Japan
Prior art keywords
excavation
outer tube
tube
inner tube
tip
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
JP14485880A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5768498A (en
Inventor
Tooru Goto
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.)
Shimizu Construction Co Ltd
Original Assignee
Shimizu 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 Shimizu Construction Co Ltd filed Critical Shimizu Construction Co Ltd
Priority to JP14485880A priority Critical patent/JPS5768498A/ja
Publication of JPS5768498A publication Critical patent/JPS5768498A/ja
Publication of JPS6128080B2 publication Critical patent/JPS6128080B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
JP14485880A 1980-10-15 1980-10-15 Direction controllable boring method and apparatus Granted JPS5768498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14485880A JPS5768498A (en) 1980-10-15 1980-10-15 Direction controllable boring method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14485880A JPS5768498A (en) 1980-10-15 1980-10-15 Direction controllable boring method and apparatus

Publications (2)

Publication Number Publication Date
JPS5768498A JPS5768498A (en) 1982-04-26
JPS6128080B2 true JPS6128080B2 (enrdf_load_stackoverflow) 1986-06-28

Family

ID=15372035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14485880A Granted JPS5768498A (en) 1980-10-15 1980-10-15 Direction controllable boring method and apparatus

Country Status (1)

Country Link
JP (1) JPS5768498A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0620592U (ja) * 1991-01-07 1994-03-18 日本基礎技術株式会社 管の芯出装置

Also Published As

Publication number Publication date
JPS5768498A (en) 1982-04-26

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