The Analysis Of Chengchao Iron Mine Atmospheric Precipitation-water Inflow Statistics Forecosting

The hydrology geology condition of Chenchao Iron Mine is simple, and the ground surface water system is undeveloped. With the increase of mineral drainage, the ground water static reserves reduces gradually, so the main source of water-filled pit becoming the infiltration of rainfall recharge. The most important task of prevention in Chengchao Iron Mine is the precipitation analysis and the prediction of water inflow into underground water gushing.The general statistics of rainfall and discharge this year in Chengchao Iron Mine shows that the mine water inflow was delayed by the precipitation infiltration of supplies through correlation analysis, the reason of the discharge affecting was that the flood season was sustained by a long time. On the basis of the relationship between atmospheric precipitation and water inflow, a statistical prediction of atmospheric precipitation and discharge was conducted on 2010 in Chengchao Iron Mine. As the feature is that the statistical data was easy to fluctuate and the transformation trends were unstable, the seasonal factors and the incompletion of the historical data existed, the analysis of effectiveness with the BP-order transfer function of the combination forecasting model was established based on the residual improvement in the transfer function. The model prediction results reveal that the main source of water inflow was the rainfall, which would continue the change in discharge over a period of time when the precipitation increased. Therefore, when preventing the flooding accident from being occurred, the analysis of the prevention method and the establishment of the emergency project have become the main content of security in Chengchao Iron Mine.