Parameters Optimization Experiments of Pre-splitting Blasting on an Open Pit Slope

The shallow hole spring blasting in the bottom step poses great threat to slope stability for the open pit mine's motioned slope and altituded multi-step performance. A parameter optimization research is done in the pre-splitting blasting in the finished slope in the crevasse growth. Continuous blasting experiments of a half year led to opeimized blasting parameters and leveled slope appropriate to the open pit mine. This research provides technical guidance to the slop treatment.