In this paper

the following items are diseased evaluated and numerically related ;theory of blasting in soil and media .the classification and criteria of classification of soil and under dynamic loading

the characteristics and the affecting zones of stress wave propagation and their relationship with properties of soil and rock

and the failure zones resulted from contained blasting etc. Problems related to the effect of carity-ratio on stress –wave distribution characteristics along the charge axis under open-hole blasting and the major principal stress

positive –phase duration

wave length for open and clogged-hole blasting are preliminarily investigated.