Controlled Blasting and Vibration Reduction Technology for Slopes of Large Open-pit Mines
In response to the problems such as large hazardous effects of blasting vibration in large-scale blasting with large aperture,based on the slope control blasting in a complex environment of a large open-pit metal mine,the single-hole charge is controlled by reducing the height of the sub-bench,reducing the diameter of the blast hole,and charging the blast holes at segmented intervals.The vibration reduction effect is achieved through electronic detonator hole-by-hole detonation technology,computer simulation detonation network method,and pre-splitting blasting technology.The results of vibration monitoring and slope displacement monitoring show that the blasting vibration can be reduced as much as possible by using these vibration-reduction technologies.At the same time,the blasting vibration pattern and regression curve of the mine are summarized,which can provide reference for the controlled blasting in complex environments.
万方数据
维普
