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STUDY ON BLASTING CRACK FRACTAL

Zhang Qi(Xian Mining Institute,Xian 710054)  
According to blasting crack fractal in rock,the attenuation law of explosion stress wavecrest value with distances is obtained in this paper.The results of example analysis prove that this way is exact,reliable,simple and convenient.It embodies the comprehensive effects of all kinds of factors on the wavecrest value attenuation of explosion stress wave with distances.
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