JPH0353434B2 - - Google Patents

Info

Publication number
JPH0353434B2
JPH0353434B2 JP28181687A JP28181687A JPH0353434B2 JP H0353434 B2 JPH0353434 B2 JP H0353434B2 JP 28181687 A JP28181687 A JP 28181687A JP 28181687 A JP28181687 A JP 28181687A JP H0353434 B2 JPH0353434 B2 JP H0353434B2
Authority
JP
Japan
Prior art keywords
pipe
underground structure
cutting edge
underground
roof
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
JP28181687A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6429598A (en
Inventor
Tetsuo Manzawa
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.)
Okumura Corp
Original Assignee
Okumura 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 Okumura Corp filed Critical Okumura Corp
Priority to JP28181687A priority Critical patent/JPS6429598A/ja
Publication of JPS6429598A publication Critical patent/JPS6429598A/ja
Publication of JPH0353434B2 publication Critical patent/JPH0353434B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP28181687A 1987-11-07 1987-11-07 Tuyere for constructing underground structure Granted JPS6429598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28181687A JPS6429598A (en) 1987-11-07 1987-11-07 Tuyere for constructing underground structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28181687A JPS6429598A (en) 1987-11-07 1987-11-07 Tuyere for constructing underground structure

Publications (2)

Publication Number Publication Date
JPS6429598A JPS6429598A (en) 1989-01-31
JPH0353434B2 true JPH0353434B2 (en]) 1991-08-15

Family

ID=17644395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28181687A Granted JPS6429598A (en) 1987-11-07 1987-11-07 Tuyere for constructing underground structure

Country Status (1)

Country Link
JP (1) JPS6429598A (en])

Also Published As

Publication number Publication date
JPS6429598A (en) 1989-01-31

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