Study On Outburst Predicting Indexes In Excavation Face Based On Time Series Analysis

China is one of the counties whose coal and gas outburst accidents occur most frequently.The coal and gas accidents not only threaten the safety of the miners, but also cause significanteconomic losses for the mining enterprises. So coal and gas forecast is of great significance foreconomic growth and safety of miners.This paper selects h2and S as the index of coal and gas outburst prediction in excavationface. In addition, track record of the indexes of the coal and gas outburst of the excavation facewhich belong to1501transport roadway in No.1mining area. Range the indexes which werecollected between May4and June4in the order of time. Then it is possible to forecast theindexes of coal and gas outburst prediction, with principle of time series analysis in theenvironment of SAS. The advantage of the method lies in that it ensures the safety of miners andreduces costs of the enterprises, achieving good social and economic benefits.