Mathematic models for mine fire simulation and determination of refuge route

Mine fire always breaks out,develops rapidly,and it is difficult to put out and rescue.Fire can produce a mass of poisonous and harmful gases and heat quantity while burning,and fire-heating air pressure will come into being.As airflow is influenced by fire impetus,its state may be disorganized,even the whole ventilation system may be disordered,and the loss is disastrous.Mine fire simulation has important guide meaning in establishing fire advanced scheme.As mine system is complicated and has limited exits,and disaster influences mine system,the refuge route always be interdicted by fire and its resultants.By reason of the complexity,it is impossible for personnel to provide refuge routes in a state of emergency.Computer and its application technology are well developed currently,it is practical and important to develop a set of refuge route selecting system which adapt to be used in locales.In the paper,a fluid network based mine fire simulation mathematical model and a refuge route mathematical model are put forward,at the same time,the corresponding program are compiled.The models have been applied to NO.2 mine area of Jinchuan Non-ferrous Metal Corporation,and a contented effect has been achieved.