Abstract: In order to realize the informatization and automation of mine ventilation management, a digital ventilation model is preliminarily established based on the basic data of the roadway by using the iVent software of Changsha Digital Mine Company. The ventilation model is modified by the measured data in spring and summer, so that the resistance of each roadway is consistent with the field, and the friction re⁃ sistance coefficient is calculated by wind measurement and resistance measurement, so that the three-di⁃ mensional model is more consistent with the actual ventilation situation of the mine, and the three-dimen⁃ sional visual modeling and wind flow simulation of the mine ventilation are realized. The establishment of three-dimensional ventilation model improves the management efficiency of mine ventilation, controls the underground ventilation situation in real time, makes improvement plans quickly, enhances the safety of un⁃ derground production, and improves the economic benefits of mine production. It has a good application prospect.

Key words: mine ventilation, three-dimensional model , ventilation network solution, dynamic simula? tion