Investigation of the Optimization of Unloading Mining Scheme in Large Deep Deposit Based on Vague Set Theory and Its Application

Table 2

Comparison of the unloading capacity of four schemes.

Scheme	Maximum stress (MPa)	Normalization
I	58.28	0.58
II	54.25	0.66
III	80.50	0.10
IV	38.63	1.00