JPH02157388A - 大口径掘削装置 - Google Patents

大口径掘削装置

Info

Publication number
JPH02157388A
JPH02157388A JP30960488A JP30960488A JPH02157388A JP H02157388 A JPH02157388 A JP H02157388A JP 30960488 A JP30960488 A JP 30960488A JP 30960488 A JP30960488 A JP 30960488A JP H02157388 A JPH02157388 A JP H02157388A
Authority
JP
Japan
Prior art keywords
casing
leader
drive device
mast
driving device
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
JP30960488A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0428877B2 (en]
Inventor
Yoshihiko Kawai
河合　喜彦
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP30960488A priority Critical patent/JPH02157388A/ja
Publication of JPH02157388A publication Critical patent/JPH02157388A/ja
Publication of JPH0428877B2 publication Critical patent/JPH0428877B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP30960488A 1988-12-07 1988-12-07 大口径掘削装置 Granted JPH02157388A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30960488A JPH02157388A (ja) 1988-12-07 1988-12-07 大口径掘削装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30960488A JPH02157388A (ja) 1988-12-07 1988-12-07 大口径掘削装置

Publications (2)

Publication Number Publication Date
JPH02157388A true JPH02157388A (ja) 1990-06-18
JPH0428877B2 JPH0428877B2 (en]) 1992-05-15

Family

ID=17995029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30960488A Granted JPH02157388A (ja) 1988-12-07 1988-12-07 大口径掘削装置

Country Status (1)

Country Link
JP (1) JPH02157388A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980709A1 (en) * 2007-04-12 2008-10-15 SOILMEC S.p.A. Method for simultaneous handling and loading of drilling rods and casings by means of two independent rotaries

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980709A1 (en) * 2007-04-12 2008-10-15 SOILMEC S.p.A. Method for simultaneous handling and loading of drilling rods and casings by means of two independent rotaries

Also Published As

Publication number Publication date
JPH0428877B2 (en]) 1992-05-15

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