Analysis of Blasting Vibration Velocity in Underground Powerhouse Based on Similarity Law of Blasting

Considering the complexity of physical quantities during the process of blasting vibration,the similarity criterion equation was built based on the basic principle of similarity law of blasting vibration.Blasting vibration velocity regression equation can be obtained using the exponential regression form,which is Sadaovsk modifier formula.The blasting vibration test was done in the main power house of Xiluodu hydrostation,and the analysis of the blasting attenuation characteristics shows that the regression results can appropriate reflect the measured data.The engineering example validates the rationality of the modified equation.This paper provides a new formula for the study of blasting vibration velocity attenuation.