Safety Entropy Research of Working Environment Parameters in Plateau Non-coal Underground Mine

Working environment in plateau non-coal underground mine was considered to be an open safety system. Maintenance and evolution of dissipative structure in ventilation system was used as the theoretical basis of operation mechanism for safety system. the safety entropy of underground environment system was researched then the model based on human-environment parameter was established. Through the case study of a plateau non-coal underground mine, in which the safety entropy values were determined by AHP comprehensive evaluation on environment system, the safety grade of working environment was obtained. Safety status of entire system and various parameters were overall considered in the method, by which the theoretical basis of system optimization and increased oxygen technique for plateau non-coal underground mine would also been provided.