JPS5413628A - Method and device for unattended supporting of pit ceiling board by mechanical excavation - Google Patents

Method and device for unattended supporting of pit ceiling board by mechanical excavation

Info

Publication number
JPS5413628A
JPS5413628A JP7929177A JP7929177A JPS5413628A JP S5413628 A JPS5413628 A JP S5413628A JP 7929177 A JP7929177 A JP 7929177A JP 7929177 A JP7929177 A JP 7929177A JP S5413628 A JPS5413628 A JP S5413628A
Authority
JP
Japan
Prior art keywords
unattended
supporting
ceiling board
mechanical excavation
pit
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
JP7929177A
Other languages
Japanese (ja)
Other versions
JPS5527956B2 (en
Inventor
Takayuki Jinno
Yasuo Kotake
Toshihiro Kikuchi
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.)
Dowa Holdings Co Ltd
Original Assignee
Dowa Mining 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 Dowa Mining Co Ltd filed Critical Dowa Mining Co Ltd
Priority to JP7929177A priority Critical patent/JPS5413628A/en
Priority to US05/908,631 priority patent/US4207016A/en
Priority to DE2823417A priority patent/DE2823417C3/en
Publication of JPS5413628A publication Critical patent/JPS5413628A/en
Publication of JPS5527956B2 publication Critical patent/JPS5527956B2/ja
Granted legal-status Critical Current

Links

JP7929177A 1977-05-31 1977-07-02 Method and device for unattended supporting of pit ceiling board by mechanical excavation Granted JPS5413628A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7929177A JPS5413628A (en) 1977-07-02 1977-07-02 Method and device for unattended supporting of pit ceiling board by mechanical excavation
US05/908,631 US4207016A (en) 1977-05-31 1978-05-23 Method and apparatus for supporting the wall of an upwardly excavated shaft
DE2823417A DE2823417C3 (en) 1977-05-31 1978-05-29 Manhole lining for use in drilling up a manhole and manhole ring for such a manhole lining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7929177A JPS5413628A (en) 1977-07-02 1977-07-02 Method and device for unattended supporting of pit ceiling board by mechanical excavation

Publications (2)

Publication Number Publication Date
JPS5413628A true JPS5413628A (en) 1979-02-01
JPS5527956B2 JPS5527956B2 (en) 1980-07-24

Family

ID=13685741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7929177A Granted JPS5413628A (en) 1977-05-31 1977-07-02 Method and device for unattended supporting of pit ceiling board by mechanical excavation

Country Status (1)

Country Link
JP (1) JPS5413628A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5665399U (en) * 1979-10-25 1981-06-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5665399U (en) * 1979-10-25 1981-06-01
JPS587277Y2 (en) * 1979-10-25 1983-02-08 株式会社 谷口製作所 electric dry furnace

Also Published As

Publication number Publication date
JPS5527956B2 (en) 1980-07-24

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