JPH0466996B2 - - Google Patents

Info

Publication number
JPH0466996B2
JPH0466996B2 JP4688990A JP4688990A JPH0466996B2 JP H0466996 B2 JPH0466996 B2 JP H0466996B2 JP 4688990 A JP4688990 A JP 4688990A JP 4688990 A JP4688990 A JP 4688990A JP H0466996 B2 JPH0466996 B2 JP H0466996B2
Authority
JP
Japan
Prior art keywords
working chamber
shaft
spherical
spherical working
hard
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
JP4688990A
Other languages
English (en)
Japanese (ja)
Other versions
JPH03250193A (ja
Inventor
Kenichi Kaneko
Takashi Hagiwara
Toshihiko Betsusho
Toshiaki Uehara
Hiroyuki Ito
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.)
Taisei Corp
IHI Corp
Original Assignee
Taisei Corp
Ishikawajima Harima Heavy Industries 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 Taisei Corp, Ishikawajima Harima Heavy Industries Co Ltd filed Critical Taisei Corp
Priority to JP4688990A priority Critical patent/JPH03250193A/ja
Publication of JPH03250193A publication Critical patent/JPH03250193A/ja
Publication of JPH0466996B2 publication Critical patent/JPH0466996B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP4688990A 1990-02-27 1990-02-27 竪坑の施工方法 Granted JPH03250193A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4688990A JPH03250193A (ja) 1990-02-27 1990-02-27 竪坑の施工方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4688990A JPH03250193A (ja) 1990-02-27 1990-02-27 竪坑の施工方法

Publications (2)

Publication Number Publication Date
JPH03250193A JPH03250193A (ja) 1991-11-07
JPH0466996B2 true JPH0466996B2 (enrdf_load_stackoverflow) 1992-10-26

Family

ID=12759932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4688990A Granted JPH03250193A (ja) 1990-02-27 1990-02-27 竪坑の施工方法

Country Status (1)

Country Link
JP (1) JPH03250193A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH03250193A (ja) 1991-11-07

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