Patent classifications
E
FIXED CONSTRUCTIONS
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E21
EARTH OR ROCK DRILLING; MINING
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E21D
SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
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11/00
Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
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E21D11/14
Lining predominantly with metal
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E21D11/28
Longitudinal struts; , i.e. longitudinal connections between adjoining arches
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E21D11/28

RIB FOR SUPPORTING AND CONSOLIDATING AN EXCAVATION AND METHOD FOR INSTALLING A STRUCTURE TO SUPPORT AND CONSOLIDATE AN EXCAVATION
20170096896 · 2017-04-06 · ·

A rib for supporting and consolidating an excavation comprises at least a first structural element (5A) and at least one connection element (10) for connecting the said structural element (5A) of the said rib to a corresponding connection element (10) of an adjacent rib (1), the said connection element (10) being capable of engaging through translatory motion with the said corresponding connection element (10) of the adjacent rib.

RIB FOR SUPPORTING AND CONSOLIDATING AN EXCAVATION AND METHOD FOR INSTALLING A STRUCTURE TO SUPPORT AND CONSOLIDATE AN EXCAVATION
20170096896 · 2017-04-06 · ·

A rib for supporting and consolidating an excavation comprises at least a first structural element (5A) and at least one connection element (10) for connecting the said structural element (5A) of the said rib to a corresponding connection element (10) of an adjacent rib (1), the said connection element (10) being capable of engaging through translatory motion with the said corresponding connection element (10) of the adjacent rib.