Smooth blasting method for roadway under iron mine

The invention discloses a smooth blasting method for an underground roadway of an iron mine, which comprises the following steps of: lofting and distributing holes: lofting and excavating a contour line by survey personnel, and marking blast hole positions on a tunnel face by using red paint; the ve...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHAO YONG, LI WEN, ZHANG GULIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AMMUNITION BLASTING HEATING LIGHTING MECHANICAL ENGINEERING WEAPONS
Online-Zugang:	Volltext bestellen
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