Predict Gas Drainage Quantity of Mining with Dynamic Unbiased Grey Markov Model

In order to predict mine gas drainage quantity for research purposes, using unbiased grey GM(1,1) model to replace the traditional GM(1,1) model, was obtained by fitting experimental mine gas drainage quantity change trend. Based on the application of dynamic Markov model prediction, and the prediction results and the real value of comparative analysis. The results show that, the dynamic unbiased grey Markov model for predicting mine gas drainage volume of high fitting precision, and results are correct and reliable, has great practicability and universality.