Method for pillar recovery in chamber-and-pillar working and tubbing unit for pillar recovery

Method for pillar recovery in chamber-and-pillar working and tubbing unit for pillar recovery

The method involves extending a retreating section through longitudinal and transverse sections of the pillars. An extraction unit is aligned to the longitudinal section. A retreating face at the transverse section leads the further retreating face. An inclination end (61) is supported with construc...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: SCHUSTER REINER,GROSS PETER
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
MINING OR QUARRYING
SHAFTS
TUNNELS
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Beschreibung
Zusammenfassung:The method involves extending a retreating section through longitudinal and transverse sections of the pillars. An extraction unit is aligned to the longitudinal section. A retreating face at the transverse section leads the further retreating face. An inclination end (61) is supported with construction units (10, 10`), which are arranged between the pillars in the longitudinal and transverse sections, before retreating face of the unit. An independent claim is also included for a construction unit for pillar deconstruction.