Non-bottom pillar deep hole falling-back type mining method

The invention relates to a non-pillar deep-hole backing-type mining method. The method is suitable for that: the digging height is between 10 and 50 m; the length of a stope is between 40 and 80 m; the width of the stope is between 7 and 9 m; the dip angle of an ore body is between 68 and 90 degrees...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YAO SHU, RUAN XIQING, HUANG PEISHENG, WANG GUOJIN, LAN YUKANG, PENG CHANGCHENG, CHEN SHENGQIANG, WANG HUAIYONG, YAN KEJUN, FENG SHENGUANG, CAO SHENGXIANG, ZHANG MUYI, SHI XIUZHI, LI HUANAN, TAN JUN, PAN MIAOCHANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AMMUNITION BLASTING EARTH DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING MINING OR QUARRYING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS WEAPONS
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