Study And Application On Influence Factors For The Blasting Seismic Effect

This article analyzed the current blast seismic effect and the present situation of the researches for influence factors. Through the analysis of the process for blasting and the assignment of blast energy, this paper discussed the formation and dissemination characteristic of the blasting seismic wave. In addition, the article compared the blasting vibration and the natural earthquake difference. By researching the existing blasting project and the experiment, research how to control the blasting vibration by the way of and changing the blasting parameters.For analyzed the blasting seismic wave objectively along with the blasting parameter change attenuation regularity, the confirmation theoretical analysis, this article uses the power finite element method to establish the corresponding numerical model, has carried on the stripped charge and concentrated charge using finite element computation software ANSYS/LS-DANY blasting seismic effect numerical simulation. The numerical simulation result indicated the stripped charge the vibration-isolating is obvious, tallies basically with the actual project.This article unifies the Wuhan Steel Corporation Mining industry Company JinShanDian iron mine blasting vibration monitor, has analyzed the tunnel blasting vibration attenuation regularity, and has carried on the regression analysis to the monitor data, obtained the biggest section of partition explosive is 190kg,when delay time is 75ms,the vibration-isolating is obvious. and has obtained this project mine deep hole blasting seismic wave attenuation regularity forecast formula, and has provided the basis for the mine blasting plan design. According to blasting the question which in the vibration monitor, has made the discussion to the plan of mine blasting vibration monitor, the union mine actual condition, proposed some mine blasting vibration monitor notices, will have the certain instruction significance to the later further research.