JPS6234916B2 - - Google Patents

Info

Publication number
JPS6234916B2
JPS6234916B2 JP29985185A JP29985185A JPS6234916B2 JP S6234916 B2 JPS6234916 B2 JP S6234916B2 JP 29985185 A JP29985185 A JP 29985185A JP 29985185 A JP29985185 A JP 29985185A JP S6234916 B2 JPS6234916 B2 JP S6234916B2
Authority
JP
Japan
Prior art keywords
center
tip
hairline
steel pipe
motor
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
JP29985185A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61274088A (ja
Inventor
Shuichi Ishikawa
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.)
ASANO KOJI KK
NITSUTO KOJI KK
Original Assignee
ASANO KOJI KK
NITSUTO KOJI KK
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 ASANO KOJI KK, NITSUTO KOJI KK filed Critical ASANO KOJI KK
Priority to JP29985185A priority Critical patent/JPS61274088A/ja
Publication of JPS61274088A publication Critical patent/JPS61274088A/ja
Publication of JPS6234916B2 publication Critical patent/JPS6234916B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP29985185A 1985-12-02 1985-12-02 埋設小口径管の推進方向修正方法及びその装置 Granted JPS61274088A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29985185A JPS61274088A (ja) 1985-12-02 1985-12-02 埋設小口径管の推進方向修正方法及びその装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29985185A JPS61274088A (ja) 1985-12-02 1985-12-02 埋設小口径管の推進方向修正方法及びその装置

Publications (2)

Publication Number Publication Date
JPS61274088A JPS61274088A (ja) 1986-12-04
JPS6234916B2 true JPS6234916B2 (en]) 1987-07-29

Family

ID=17877710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29985185A Granted JPS61274088A (ja) 1985-12-02 1985-12-02 埋設小口径管の推進方向修正方法及びその装置

Country Status (1)

Country Link
JP (1) JPS61274088A (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0547832Y2 (en]) * 1988-02-15 1993-12-16

Also Published As

Publication number Publication date
JPS61274088A (ja) 1986-12-04

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