基于回归分析的露天矿山爆破振动传播规律研究

Study on Propagation Law of Blasting Vibration in Open-pit Mine Based on Regression Analysis

为分析及预测某露天矿山爆破振动的衰减规律,采用线性回归及非线性回归的方法对相应爆破振动预测经验公式进行了分析,根据现场实测数据,得出了对应预测模型的未知系数。结果表明:非线性回归分析所得到的经验公式的预测精确度高于线性回归分析所得到的结果;考虑高程效应后的预测模型比传统经验公式的预测精度要高;采用非线性回归分析得到的修正公式能很好地映该露天矿山的爆破振动传播规律。

In order to analyze and predict the propagation law of blasting vibration in an open-pit mine,the linear regression and nonlinear regression methods were adopted to analyze the corresponding empirical formulas of blasting vibration prediction.According to the field measured data,the unknown coefficients of the corresponding prediction model were obtained.The results showed that the accuracy of empirical formula obtained by nonlinear regression analysis was higher than that obtained by linear regression analysis.The prediction model considering the elevation effect had a higher prediction accuracy than the traditional empirical formula.The correction formula obtained by nonlinear regression analysis could well reflect the propagation law of blasting vibration in the open-pit mine.