JPH0216837B2 - - Google Patents

Info

Publication number
JPH0216837B2
JPH0216837B2 JP4854384A JP4854384A JPH0216837B2 JP H0216837 B2 JPH0216837 B2 JP H0216837B2 JP 4854384 A JP4854384 A JP 4854384A JP 4854384 A JP4854384 A JP 4854384A JP H0216837 B2 JPH0216837 B2 JP H0216837B2
Authority
JP
Japan
Prior art keywords
tube
cutting
hole
pipe
propulsion
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
JP4854384A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60195295A (ja
Inventor
Iwao Nakahara
Norio Yamakado
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.)
Eneos Corp
Original Assignee
Nippon Petrochemicals 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 Nippon Petrochemicals Co Ltd filed Critical Nippon Petrochemicals Co Ltd
Priority to JP4854384A priority Critical patent/JPS60195295A/ja
Publication of JPS60195295A publication Critical patent/JPS60195295A/ja
Publication of JPH0216837B2 publication Critical patent/JPH0216837B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP4854384A 1984-03-14 1984-03-14 回転式推進装置 Granted JPS60195295A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4854384A JPS60195295A (ja) 1984-03-14 1984-03-14 回転式推進装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4854384A JPS60195295A (ja) 1984-03-14 1984-03-14 回転式推進装置

Publications (2)

Publication Number Publication Date
JPS60195295A JPS60195295A (ja) 1985-10-03
JPH0216837B2 true JPH0216837B2 (enrdf_load_stackoverflow) 1990-04-18

Family

ID=12806279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4854384A Granted JPS60195295A (ja) 1984-03-14 1984-03-14 回転式推進装置

Country Status (1)

Country Link
JP (1) JPS60195295A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS60195295A (ja) 1985-10-03

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