JPH0721676Y2 - 岩盤調査用掘削孔の研磨装置 - Google Patents

岩盤調査用掘削孔の研磨装置

Info

Publication number
JPH0721676Y2
JPH0721676Y2 JP12061289U JP12061289U JPH0721676Y2 JP H0721676 Y2 JPH0721676 Y2 JP H0721676Y2 JP 12061289 U JP12061289 U JP 12061289U JP 12061289 U JP12061289 U JP 12061289U JP H0721676 Y2 JPH0721676 Y2 JP H0721676Y2
Authority
JP
Japan
Prior art keywords
polishing
hole
wall surface
rock
drilling hole
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 - Fee Related
Application number
JP12061289U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0362189U (enrdf_load_html_response
Inventor
知平 登坂
敬太郎 早渕
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.)
Obayashi Corp
Original Assignee
Obayashi 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 Obayashi Corp filed Critical Obayashi Corp
Priority to JP12061289U priority Critical patent/JPH0721676Y2/ja
Publication of JPH0362189U publication Critical patent/JPH0362189U/ja
Application granted granted Critical
Publication of JPH0721676Y2 publication Critical patent/JPH0721676Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP12061289U 1989-10-17 1989-10-17 岩盤調査用掘削孔の研磨装置 Expired - Fee Related JPH0721676Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12061289U JPH0721676Y2 (ja) 1989-10-17 1989-10-17 岩盤調査用掘削孔の研磨装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12061289U JPH0721676Y2 (ja) 1989-10-17 1989-10-17 岩盤調査用掘削孔の研磨装置

Publications (2)

Publication Number Publication Date
JPH0362189U JPH0362189U (enrdf_load_html_response) 1991-06-18
JPH0721676Y2 true JPH0721676Y2 (ja) 1995-05-17

Family

ID=31668682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12061289U Expired - Fee Related JPH0721676Y2 (ja) 1989-10-17 1989-10-17 岩盤調査用掘削孔の研磨装置

Country Status (1)

Country Link
JP (1) JPH0721676Y2 (enrdf_load_html_response)

Also Published As

Publication number Publication date
JPH0362189U (enrdf_load_html_response) 1991-06-18

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