Research on the forecasting of blasting vibration by bench blasting in metal mining

Based on relevant theories, a forecasting formula of blasting vibration by bench blasting in metal mining was established through regression analysis. Then the reliability of forecasting result of the formula was analyzed in combination with the actual situation. Finally, the Fangmayu iron mine was taken as example for forecasting of blasting vibration. 120 groups of dates were measured, which include 3 kinds of different surface and landform conditions. The values of K and α were calculated through analyzing the worked original dates separately from 4 aspects such as vertical, tangential, radial and vector sum. Then a predictor formula of blasting vibration was fitting, which was applied to forecast the blasting vibration. Analysis shows that the prediction results were stable and reliable, which provides a good model and reference for the similar project to predict blasting vibration.