JPH0344612B2 - - Google Patents

Info

Publication number
JPH0344612B2
JPH0344612B2 JP27788585A JP27788585A JPH0344612B2 JP H0344612 B2 JPH0344612 B2 JP H0344612B2 JP 27788585 A JP27788585 A JP 27788585A JP 27788585 A JP27788585 A JP 27788585A JP H0344612 B2 JPH0344612 B2 JP H0344612B2
Authority
JP
Japan
Prior art keywords
casing pipe
drilling
small diameter
diameter hole
small
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
JP27788585A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62137389A (ja
Inventor
Reikichi Chikasawa
Hiroshi Kusumi
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP27788585A priority Critical patent/JPS62137389A/ja
Publication of JPS62137389A publication Critical patent/JPS62137389A/ja
Publication of JPH0344612B2 publication Critical patent/JPH0344612B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP27788585A 1985-12-12 1985-12-12 大口径竪孔掘削工法及び装置 Granted JPS62137389A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27788585A JPS62137389A (ja) 1985-12-12 1985-12-12 大口径竪孔掘削工法及び装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27788585A JPS62137389A (ja) 1985-12-12 1985-12-12 大口径竪孔掘削工法及び装置

Publications (2)

Publication Number Publication Date
JPS62137389A JPS62137389A (ja) 1987-06-20
JPH0344612B2 true JPH0344612B2 (es) 1991-07-08

Family

ID=17589642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27788585A Granted JPS62137389A (ja) 1985-12-12 1985-12-12 大口径竪孔掘削工法及び装置

Country Status (1)

Country Link
JP (1) JPS62137389A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0610394B2 (ja) * 1988-09-30 1994-02-09 盛吉 山本 削孔工法
JPH02157387A (ja) * 1988-12-08 1990-06-18 Matsuzawa Kiko:Kk 掘削排土装置
JPH0791935B2 (ja) * 1989-09-14 1995-10-09 株式会社松沢基工 掘削装置及び掘削工法

Also Published As

Publication number Publication date
JPS62137389A (ja) 1987-06-20

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