Deep-hole shrinkage mining method of thin-vein type steep deposit

The invention relates to a deep-hole shrinkage mining method of a thin-vein type steep deposit. The method includes the following steps of firstly, dividing a room; secondly, digging an along-vein courtyard; thirdly, constructing a connection roadway; fourthly, digging an ore output connection roadw...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIU DONGSHENG, DU HONGKE, DUAN ERZHANG, LIU CHAOQUN, ZHAO WEIFENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AMMUNITION BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING MINING OR QUARRYING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS WEAPONS
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