JPS6144200B2 - - Google Patents

Info

Publication number
JPS6144200B2
JPS6144200B2 JP54027276A JP2727679A JPS6144200B2 JP S6144200 B2 JPS6144200 B2 JP S6144200B2 JP 54027276 A JP54027276 A JP 54027276A JP 2727679 A JP2727679 A JP 2727679A JP S6144200 B2 JPS6144200 B2 JP S6144200B2
Authority
JP
Japan
Prior art keywords
roof shield
steel arch
shoring
roof
shield
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
JP54027276A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55119900A (en
Inventor
Akira Sawai
Michio Nakatani
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 JP2727679A priority Critical patent/JPS55119900A/ja
Publication of JPS55119900A publication Critical patent/JPS55119900A/ja
Publication of JPS6144200B2 publication Critical patent/JPS6144200B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)
JP2727679A 1979-03-10 1979-03-10 Method of excavating tunnel and roof shielding device Granted JPS55119900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2727679A JPS55119900A (en) 1979-03-10 1979-03-10 Method of excavating tunnel and roof shielding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2727679A JPS55119900A (en) 1979-03-10 1979-03-10 Method of excavating tunnel and roof shielding device

Publications (2)

Publication Number Publication Date
JPS55119900A JPS55119900A (en) 1980-09-13
JPS6144200B2 true JPS6144200B2 (zh) 1986-10-01

Family

ID=12216545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2727679A Granted JPS55119900A (en) 1979-03-10 1979-03-10 Method of excavating tunnel and roof shielding device

Country Status (1)

Country Link
JP (1) JPS55119900A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104278995A (zh) * 2014-09-18 2015-01-14 中国煤炭科工集团太原研究院有限公司 煤矿井下自动联接锚网装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104278995A (zh) * 2014-09-18 2015-01-14 中国煤炭科工集团太原研究院有限公司 煤矿井下自动联接锚网装置

Also Published As

Publication number Publication date
JPS55119900A (en) 1980-09-13

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