Two-step segmented medium-length hole extrusion ore-breaking stage artificial trench ore-removing mining method

The invention discloses a two-step segmented medium-length hole extrusion ore-breaking stage artificial trench ore-removing mining method. The method comprises the following steps of: dividing ore blocks along the ore body direction, dividing the ore blocks into segments, and tunneling various minin...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MENG HUIMEI, JIAO MANDAI, ZHANG HAILEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING MINING OR QUARRYING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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