Freeze-Thaw Effects on Stability of Open Pit Slope in High-Altitude and Cold Regions

Table 5

Adjustment values of occurrence on discontinuous planes in Muli mining area.

Condition		Very favorable	Favorable	Ordinary	Unfavorable	Very unfavorable
Plane failure		>30°	30°­20°	20°­10°	10°­5°	<5°
		0.15	0.4	0.70	0.85	1.00
Plane failure		<20°	20°­30°	30°­35°	35°­45°	>45°
		0.15	0.4	0.70	0.85	1.00
Plane failure		>10°	10°­0°	0°	0°­10°	<-10°
		0	6	10	25	30

Note: : discontinuous plane inclination; : slope inclination; : discontinuous plane angle; : slope angle.