JPH0472958B2 - - Google Patents

Info

Publication number
JPH0472958B2
JPH0472958B2 JP6583586A JP6583586A JPH0472958B2 JP H0472958 B2 JPH0472958 B2 JP H0472958B2 JP 6583586 A JP6583586 A JP 6583586A JP 6583586 A JP6583586 A JP 6583586A JP H0472958 B2 JPH0472958 B2 JP H0472958B2
Authority
JP
Japan
Prior art keywords
pilot tube
pilot
bit
tube
pipe
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
JP6583586A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62225691A (ja
Inventor
Motoyuki Takasu
Koichi Hara
Sumio Fukuda
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.)
Tokyu Construction Co Ltd
Original Assignee
Tokyu 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 Tokyu Construction Co Ltd filed Critical Tokyu Construction Co Ltd
Priority to JP6583586A priority Critical patent/JPS62225691A/ja
Publication of JPS62225691A publication Critical patent/JPS62225691A/ja
Publication of JPH0472958B2 publication Critical patent/JPH0472958B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP6583586A 1986-03-26 1986-03-26 蛇行したパイロット管の修正方法 Granted JPS62225691A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6583586A JPS62225691A (ja) 1986-03-26 1986-03-26 蛇行したパイロット管の修正方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6583586A JPS62225691A (ja) 1986-03-26 1986-03-26 蛇行したパイロット管の修正方法

Publications (2)

Publication Number Publication Date
JPS62225691A JPS62225691A (ja) 1987-10-03
JPH0472958B2 true JPH0472958B2 (enrdf_load_stackoverflow) 1992-11-19

Family

ID=13298468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6583586A Granted JPS62225691A (ja) 1986-03-26 1986-03-26 蛇行したパイロット管の修正方法

Country Status (1)

Country Link
JP (1) JPS62225691A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS62225691A (ja) 1987-10-03

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