AU6365073A - An expandible and contractible shield to support the roof ofa tunnel or mine road - Google Patents

An expandible and contractible shield to support the roof ofa tunnel or mine road

Info

Publication number
AU6365073A
AU6365073A AU63650/73A AU6365073A AU6365073A AU 6365073 A AU6365073 A AU 6365073A AU 63650/73 A AU63650/73 A AU 63650/73A AU 6365073 A AU6365073 A AU 6365073A AU 6365073 A AU6365073 A AU 6365073A
Authority
AU
Australia
Prior art keywords
expandible
tunnel
support
mine road
ofa
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
AU63650/73A
Other versions
AU463641B2 (en
Inventor
Fujimori Masao
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.)
Taiheiyo Coal Miningco Ltd
Original Assignee
Taiheiyo Coal 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 Taiheiyo Coal Mining Co Ltd filed Critical Taiheiyo Coal Mining Co Ltd
Publication of AU6365073A publication Critical patent/AU6365073A/en
Application granted granted Critical
Publication of AU463641B2 publication Critical patent/AU463641B2/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D19/00—Provisional protective covers for working space
    • E21D19/04—Provisional protective covers for working space for use in drifting galleries
AU63650/73A 1972-12-18 1973-12-14 An expandible and contractible shield to support the roof ofa tunnel or mine road Expired AU463641B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP47126267A JPS4983228A (en) 1972-12-18 1972-12-18
JPJP47-12626 1972-12-18

Publications (2)

Publication Number Publication Date
AU6365073A true AU6365073A (en) 1975-06-19
AU463641B2 AU463641B2 (en) 1975-07-31

Family

ID=14930943

Family Applications (1)

Application Number Title Priority Date Filing Date
AU63650/73A Expired AU463641B2 (en) 1972-12-18 1973-12-14 An expandible and contractible shield to support the roof ofa tunnel or mine road

Country Status (5)

Country Link
JP (1) JPS4983228A (en)
AU (1) AU463641B2 (en)
CA (1) CA985056A (en)
DE (1) DE2361235B2 (en)
GB (1) GB1439546A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461095A1 (en) * 1979-07-06 1981-01-30 Charbonnages De France SLIDING CONTINUOUS SUPPORT PORTION WITH LARGE PASSENGER OPENING AND SLIDING HAT
JPH0781518B2 (en) * 1988-06-22 1995-08-30 戸田建設株式会社 Tunnel lining method and device
JPH089280Y2 (en) * 1992-01-09 1996-03-13 株式会社新菱製作所 Segment transfer device
DE102007035848C5 (en) 2007-07-31 2018-11-15 Marco Systemanalyse Und Entwicklung Gmbh Removal screen and method for controlling or determining the position of a removal screen
AU2013323081B2 (en) 2012-09-27 2017-08-31 Centre For Excellence In Mining Innovation Drill and blast method and apparatus for the same

Also Published As

Publication number Publication date
DE2361235B2 (en) 1976-01-08
CA985056A (en) 1976-03-09
GB1439546A (en) 1976-06-16
JPS4983228A (en) 1974-08-10
DE2361235A1 (en) 1974-07-04
AU463641B2 (en) 1975-07-31

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