Experimental Study on Influence Blasting Earthquake Strength to Free Faces
PU Chuan-jin · Blasting · 2009
According to blasting vibration experiments with one free face,two free faces and three free faces,the influence law of blasting vibration wave strength to quantity of free faces was set up.According to results of experiments and analysis,it can be received blasting earthquake wave strength is attenuated faster with the increase of quantity of free face.