Research Article

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

Table 6

Comparison of the economic index of before and after the unloading mining.

ParametersBeforeAfter

Supporting cost (Yuan/t)3.211.10
Capacity of production (t/d)562.00817.00
Dilution ratio (%)5.744.71
Loss ratio (%)5.612.06
Ratio of mined tonnage to development (m/kt)8.653.25
Mining cost (Yuan/t)10.215.06
Maximum principal stress in the stope area (MPa)85.6758.28