BE499757A - - Google Patents

Info

Publication number
BE499757A
BE499757A BE499757DA BE499757A BE 499757 A BE499757 A BE 499757A BE 499757D A BE499757D A BE 499757DA BE 499757 A BE499757 A BE 499757A
Authority
BE
Belgium
Application number
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.)
Publication of BE499757A publication Critical patent/BE499757A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
BE499757D 1950-12-01 BE499757A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE706448X 1950-12-01

Publications (1)

Publication Number Publication Date
BE499757A true BE499757A (xx)

Family

ID=3878511

Family Applications (1)

Application Number Title Priority Date Filing Date
BE499757D BE499757A (xx) 1950-12-01

Country Status (4)

Country Link
BE (1) BE499757A (xx)
FR (1) FR1044988A (xx)
GB (1) GB706448A (xx)
LU (1) LU31082A1 (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027613B (de) * 1955-07-27 1958-04-10 Nicolas Joseph Rutigliano Vorrichtung zum Abstuetzen der Firste von Grubenstrecken

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169881B (de) * 1960-09-09 1964-05-14 Hermann Schwarz Kommanditgesel In der Laengsrichtung in mehrere im wesentlichen gleiche Stuecke aufgeteilte Kappe
GB1219897A (en) * 1967-10-10 1971-01-20 Karl Maria Groetschel Improvements relating to roof supports for mine workings
GB2198166B (en) * 1986-10-31 1990-10-17 Thos Storey Improvements in and relating to support work props
CN115977701B (zh) * 2023-03-20 2023-06-30 中交基础设施养护集团工程有限公司 一种隧道支护结构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027613B (de) * 1955-07-27 1958-04-10 Nicolas Joseph Rutigliano Vorrichtung zum Abstuetzen der Firste von Grubenstrecken

Also Published As

Publication number Publication date
FR1044988A (fr) 1953-11-23
GB706448A (en) 1954-03-31
LU31082A1 (xx)

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