JPS5628993A - Pit excavation method and drilling guide pipe for hard rock - Google Patents

Pit excavation method and drilling guide pipe for hard rock

Info

Publication number
JPS5628993A
JPS5628993A JP10408979A JP10408979A JPS5628993A JP S5628993 A JPS5628993 A JP S5628993A JP 10408979 A JP10408979 A JP 10408979A JP 10408979 A JP10408979 A JP 10408979A JP S5628993 A JPS5628993 A JP S5628993A
Authority
JP
Japan
Prior art keywords
guide pipe
hard rock
excavation method
drilling guide
pit excavation
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.)
Granted
Application number
JP10408979A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5729638B2 (enExample
Inventor
Hiroshi Kazuhara
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.)
Maeda Corp
Original Assignee
Maeda 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 Maeda Corp filed Critical Maeda Corp
Priority to JP10408979A priority Critical patent/JPS5628993A/ja
Publication of JPS5628993A publication Critical patent/JPS5628993A/ja
Publication of JPS5729638B2 publication Critical patent/JPS5729638B2/ja
Granted legal-status Critical Current

Links

JP10408979A 1979-08-17 1979-08-17 Pit excavation method and drilling guide pipe for hard rock Granted JPS5628993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10408979A JPS5628993A (en) 1979-08-17 1979-08-17 Pit excavation method and drilling guide pipe for hard rock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10408979A JPS5628993A (en) 1979-08-17 1979-08-17 Pit excavation method and drilling guide pipe for hard rock

Publications (2)

Publication Number Publication Date
JPS5628993A true JPS5628993A (en) 1981-03-23
JPS5729638B2 JPS5729638B2 (enExample) 1982-06-23

Family

ID=14371392

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10408979A Granted JPS5628993A (en) 1979-08-17 1979-08-17 Pit excavation method and drilling guide pipe for hard rock

Country Status (1)

Country Link
JP (1) JPS5628993A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5894586A (ja) * 1981-11-28 1983-06-04 株式会社山本鉄工所 大口径孔の穿孔方法およびその装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5268704A (en) * 1975-12-03 1977-06-07 Ikunari Onooka Method of timbering continuously in hole excavated by earth auger

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5268704A (en) * 1975-12-03 1977-06-07 Ikunari Onooka Method of timbering continuously in hole excavated by earth auger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5894586A (ja) * 1981-11-28 1983-06-04 株式会社山本鉄工所 大口径孔の穿孔方法およびその装置

Also Published As

Publication number Publication date
JPS5729638B2 (enExample) 1982-06-23

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