THE OPTIMIZATION OF PANEL MINING SEQUENCE FOR FLAT-DIPPING, MIDDLE-THICK OREBODY

In this paper, orthogonal test design and three dimensional finite elememt numerical simulation method (FFM) are applied to optimization of panel mining sequence for flat-dipping,middle-thick orebody in an iron ore mine, Hebei Province. For the stability of openings in foot wall, the optimized panel mining sequence is heading-and -stope method in obligue mining sequence.