SYSTEM AND METHOD FOR FORMING A CAVITY IN A BACKFILLED STOPE

A system for forming a cavity in a backfill mixture comprising granular material and water positioned in an at least partially excavated stope. The system includes a base and a drainage tube assembly in an extended condition thereof. The drainage tube assembly extends between a lower end secured to...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	LAMOND, ROBERT
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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