JPS6146636B2 - - Google Patents

Info

Publication number
JPS6146636B2
JPS6146636B2 JP15456780A JP15456780A JPS6146636B2 JP S6146636 B2 JPS6146636 B2 JP S6146636B2 JP 15456780 A JP15456780 A JP 15456780A JP 15456780 A JP15456780 A JP 15456780A JP S6146636 B2 JPS6146636 B2 JP S6146636B2
Authority
JP
Japan
Prior art keywords
horizontal
excavation
mast
excavating
vertical
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
JP15456780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5781587A (en
Inventor
Kunijiro Matsushita
Michihiro Tamaki
Harumasa Shimizu
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.)
Kumagai Gumi Co Ltd
Original Assignee
Kumagai Gumi 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 Kumagai Gumi Co Ltd filed Critical Kumagai Gumi Co Ltd
Priority to JP15456780A priority Critical patent/JPS5781587A/ja
Publication of JPS5781587A publication Critical patent/JPS5781587A/ja
Publication of JPS6146636B2 publication Critical patent/JPS6146636B2/ja
Granted legal-status Critical Current

Links

JP15456780A 1980-11-05 1980-11-05 Horizontal drilling method Granted JPS5781587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15456780A JPS5781587A (en) 1980-11-05 1980-11-05 Horizontal drilling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15456780A JPS5781587A (en) 1980-11-05 1980-11-05 Horizontal drilling method

Publications (2)

Publication Number Publication Date
JPS5781587A JPS5781587A (en) 1982-05-21
JPS6146636B2 true JPS6146636B2 (zh) 1986-10-15

Family

ID=15587053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15456780A Granted JPS5781587A (en) 1980-11-05 1980-11-05 Horizontal drilling method

Country Status (1)

Country Link
JP (1) JPS5781587A (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA835245B (en) * 1982-07-26 1984-08-29 Dickinson Ben Wade O Iii Earth drilling apparatus and method

Also Published As

Publication number Publication date
JPS5781587A (en) 1982-05-21

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