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

Table 7

Depth of plastic zone, displacement, and FOS of different support design obtained from RS2.

		Unsupported	Sophisticated support	Support suggested by Q-system	Combination support system
The depth of plastic zone/m	Roof	3.479	2.557	1.634	0.336
	Left side wall	1.459	0.944	0.869	0.528
	Right side wall	1.409	0.933	0.88	0.683
Vertical displacement in the roof/mm		22	12	7.6	2
Horizontal displacement/mm	Left side wall	19.5	13.4	11.2	9.55
	Right side wall	16.5	13.4	11.2	8.45
Factor of safety (FOS)		0	0.17	0.88	8.28