Some environmental groups feel that even physically harmless tests could represent the first step onto a slippery slope that would ultimately lead to full scale deployment of these technologies.

A slope detector is proposed, which is capable of detecting the slope of varied signals and recognizing the variation of the step signals, although these signals do not have a large slope.

Analyzing the whole blasting vibration process at a certain time step, then the time history curve of the dynamic stability safety factor of the slope under blasting vibration could be got.