爆破震动中萨道夫斯基拓展式的回归分析

The regression analysis of extended Sodev type in blasting Vibration

在运用萨道夫斯基公式进行爆破震动速度的测控分析中,当爆破震动质点的高程差发生改变时,该公式的适用性将受到限制.结合萨道夫斯基公式,并利用MATLAB软件对该式及拓展式的各参量进行了线性、非线性、残差分析以及无偏估计.试验结果分析显示,考虑高程差后的回归模型能更准确的预测不平整场地中爆破震动质点的速度值,同时降低了爆破震动速度的相对误差以及达到回归预测的目的,进而提高对工程中质点震动速度的测量精度.

By using Sodev＇s empirical formula in analysizing blasting vibration speed,The formula＇s applicability was limited when altitude difference of theblasting particle.Combined Sa Road Minkowski formula and used MATLAB software to the parameters of Sa Road Minkowski formula and it＇s expansion type to linear,nonlinear,residual analysis and unbiased estimate.Test results show that the regression model which considering the elevation difference more accurately predict the speed value of blasting vibration particle velocity in the uneven,and reduce the relative error of blasting vibration velocity,consequently,we measure up to the regression forecast.It impove measurement accuracy of particle vibration velocity in the project.