Determination of Intervening Pillar Thickness Based on the Cusp Catastrophe Model

Figure 1

Sublevel drilling open-stope subsequent filling mining method. 1, stage transport roadway; 2, ramp; 3, sublevel contact roadway; 4, ore-drawing roadway; 5, loading roadway; 6, rock drilling roadway; 7, pedestrian ventilation raise; 8, ore chute; 9, cutting raise; 10, intervening pillar; 11, top pillar; 12, bottom pillar; 13, ore; 14, filling body; 15, medium-deep hole. (a) A-A. (b) B–B. (c) C–C.

(a)

(b)

(c)