Forecasting of Absolute Gas Emission in Mine Based on BP-ANN

摘要

The absolute gas emission of mine refers to many nonlinear problems of complex indexes and different fields. It is difficult to consider every index to choose the evaluation way. So, in order to solve this shortcoming and draw the gas-geologic map, data of Geting mine are taken for example to establish a multi-factor model of absolute gas emission . Based on the comprehensive analysis of absolute emission influential factors, four first-class indexes and twelve second-class indexes can be concluded. Then, BP-ANN is proposed to establish the model by the data of Geting mine. By index normalization and repeated study of ANN, the model of absolute gas emission can be thought as an exact and effective model. Then the absolute gas emission of other unknown areas can be predicated by this model.