Analysis of Support Design in Weak Rock Drift Using a Systematic Approach

Table 2

In situ stress components at SW orebody of Xinli mine zone.

Stress component	Magnitude (MPa)	Trend	Value (MPa) (depth = 320 m)
The major principal stress ()		325°	11.31
The minor principal stress ()		145°	5.89
The intermediate principal stress ()		0°	10.16

H is the depth in meter.