E - Fixed Constructions – 21 – D
Patent
E - Fixed Constructions
21
D
E21D 15/02 (2006.01) E21D 15/48 (2006.01)
Patent
CA 2152802
A yieldable confined core mine roof support (7) including a container (I) and a filler (6) placed within the container. The container is yieldable and the filler is compressible. The combination of a filler within a container produces a mine roof support which is yieldable under a substantially axial load and which increases in load carrying ability as it yields, impeding any decrease in the distance between a mine roof (2) and a mine floor (3), minimizing or preventing mine roof collapse and mine floor hcave, buckling or punching.
La présente invention se rapporte à un support central fléchissant (7) pour paroi supérieure de mine. Le support se compose d'un contenant (1) et d'un matériau de remplissage (6) placé à l'intérieur du contenant. Le contenant est fléchissant, tandis que le matériau de remplissage est compressible. Ces deux éléments forment ensemble un support qui s'affaisse sous une importante charge axiale, mais dont la capacité de portance augmente du fait de sa compressibilité. Le support permet ainsi de maintenir la distance entre la paroi supérieure (2) et la paroi inférieure (3) de la mine, empêche la paroi supérieure de s'affaisser et la paroi inférieure de s'effondrer, de se déformer ou de se perforer.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Coastal Corporation (the)
LandOfFree
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