An evaluation model for tailings storage facilities using improved neural networks and fuzzy mathematics

With the development of mine industry,tailings storage facility (tsf),as the important facility of mining,has attracted increasing attention for its safety problems. however,the problems of low accuracy and slow operation rate often occur in current tsf safety evaluation models. this paper establishes a reasonable tsf safety evaluation index system and puts forward a new tsf safety evaluation model by combining the theories for the analytic hierarchy process (ahp) and improved back-propagation (bp) neural network algorithm. the varying proportions of cross validation were calculated,demonstrating that this method has better evaluation performance with higher learning efficiency and faster convergence speed and avoids the oscillation in the training process in traditional bp neural network method and other primary neural network methods. the entire analysis shows the combination of the two methods increases the accuracy and reliability of the safety evaluation,and it can be well applied in the tsf safety evaluation. © 2014 sen tian and jianhong chen.