ABSTRACT
On the basis of ventilation resistance determination PG.4, established 3D visualization model of PG.4 by Ventsim, the later stage of the mine’s development scheme is analyzed one by one, which is presented in about the ventilation resistance changes, ventilation safety management feasibility analysis, economic rationality. Eventually, according to the results of the analysis to choose the best optimization scheme for late reconstruction scheme, which can save costs, improve mine safety management, accurate quantitative ventilation calculation, accelerate the digital mine construction.
